Αρχειοθήκη ιστολογίου
-
►
2023
(256)
- ► Φεβρουαρίου (140)
- ► Ιανουαρίου (116)
-
►
2022
(1695)
- ► Δεκεμβρίου (78)
- ► Σεπτεμβρίου (142)
- ► Φεβρουαρίου (155)
-
►
2021
(5507)
- ► Δεκεμβρίου (139)
- ► Σεπτεμβρίου (333)
- ► Φεβρουαρίου (628)
-
►
2020
(1810)
- ► Δεκεμβρίου (544)
- ► Σεπτεμβρίου (32)
- ► Φεβρουαρίου (28)
-
►
2019
(7684)
- ► Δεκεμβρίου (18)
- ► Σεπτεμβρίου (53)
- ► Φεβρουαρίου (2841)
- ► Ιανουαρίου (2803)
-
▼
2018
(31838)
- ► Δεκεμβρίου (2810)
- ► Σεπτεμβρίου (2870)
-
▼
Μαΐου
(2575)
-
▼
Μαΐ 10
(84)
- Table of Contents
- Information for Readers
- Editorial Board
- The multidisciplinary tumor board for the manageme...
- Subject index
- CME examination
- Answers to CME examination
- CME examination
- June iotaderma (#292)
- May iotaderma (#291)
- Answers to CME examination
- Should medical students follow up on skin biopsy r...
- Dermatology Calendar
- JAAD Case Reports Article List
- Author index∗∗January, pp. 1-236; February, pp. 23...
- Journal Based CME Instructions and Information
- Cover Sheet for Index
- In the blink of an eye
- Langerhans cell histiocytosis in children
- Instagram and the dermatologist: An ethical analysis
- Generalized urticaria caused by ingestion of sweet...
- Acquisition of tolerance to egg allergy in a child...
- Implication of fraction of exhaled nitric oxide an...
- World Thyroid Day Recognized Globally on May 25th
- Nemolizumab in moderate-to-severe atopic dermatiti...
- Retrospective analysis of postoperative interventi...
- Comparative evaluation of various low-level laser ...
- Accuracy of CAD/CAM mandibular reconstruction: A t...
- Medical and dietary management of eosinophilic eso...
- Minimally-invasive biomarker studies in eosinophil...
- Efficacy of a single dose of omalizumab for the pr...
- An EAACI task force report: recognising the potent...
- Septic arthritis of the sternoclavicular joint: A ...
- Total mandibulectomy defect in the setting of chro...
- Editorial Board
- Sinonasal adenoid cystic carcinoma-role of on-site...
- Loss of bronchoprotection to Salbutamol during spu...
- Tone-Evoked Acoustic Change Complex (ACC) Recorded...
- Tone-Evoked Acoustic Change Complex (ACC) Recorded...
- Roxithromycin monotherapy inducing a partial respo...
- Exploration of Patient Characteristics and Quality...
- A Novel Computer Algorithm for Printing a 3-Dimens...
- Human Papillomavirus in the Mouth and Throat
- Association of HPV Status at Head and Neck Carcino...
- Three-Dimensional Printing of Nasal Prosthetics
- Microvessel density in head and neck squamous cell...
- Incidence of akathisia after postoperative nausea ...
- Lipomas of the Oral Cavity: Utility of MDM2 and CD...
- Update on complications in cleft orthognathic surgery
- Blepharoptosis repair
- Update on complications in cleft orthognathic surgery
- Blepharoptosis repair
- Lipomas of the Oral Cavity: Utility of MDM2 and CD...
- Lipomas of the Oral Cavity: Utility of MDM2 and CD...
- The prevalence and impact of otitis media with eff...
- Reduced Hemidiaphragmatic Paresis With a “Corner P...
- A Cadaveric Study Investigating the Mechanism of A...
- Study of Endonasal Endoscopic Dacryo-cystorhinosto...
- Endoscope-assisted retrosigmoid approach in hemifa...
- Comparison of the efficacy of vocal training and v...
- Study of Endonasal Endoscopic Dacryo-cystorhinosto...
- Efficacy of a shower cream and a lotion with skin‐...
- Principles of Reconstruction After Mohs Surgery
- Severe Atopic Dermatitis in Children
- Newborn Screening for Severe Combined Immunodefici...
- Severe Atopic Dermatitis in Children
- Newborn Screening for Severe Combined Immunodefici...
- Cystatin F as a regulator of immune cell cytotoxicity
- Myeloid-derived suppressor cells (MDSCs) in patien...
- Case 14-2018: A 68-Year-Old Woman with a Rash, Hyp...
- Erbium Yttrium–Aluminum–Garnet Laser Versus Tradit...
- The Effect of Different Doses of Extracorporeal Sh...
- Endoscopically Assisted Transoral Gap Arthroplasty...
- Review of “Sex Differences in Faculty Rank Among A...
- Simple Bone Cyst Mimicking Stafne Bone Defect
- Development of Human Face Literature Database Usin...
- Cervical Tracheal Resection and Anastomosis for Po...
- Deepening Fornix Technique Using Central Split-Med...
- Extra-Articular Ankylosis of the Coronoid Process ...
- Comparison of Piezosurgery and Hammer-Chisel in En...
- Surgical Management of the Recent Orbital War Injury
- Isolated Bilateral Macrostomia
- Congenital Calvarial Hemangioma
- Delayed Reduction of Zygomatic Arch Fracture: Effe...
-
▼
Μαΐ 10
(84)
- ► Φεβρουαρίου (2420)
- ► Ιανουαρίου (2395)
-
►
2017
(31987)
- ► Δεκεμβρίου (2460)
- ► Σεπτεμβρίου (2605)
- ► Φεβρουαρίου (2785)
- ► Ιανουαρίου (2830)
-
►
2016
(5308)
- ► Δεκεμβρίου (2118)
- ► Σεπτεμβρίου (877)
- ► Φεβρουαρίου (41)
- ► Ιανουαρίου (39)
Πέμπτη 10 Μαΐου 2018
Table of Contents
https://ift.tt/2G3uL04
Editorial Board
https://ift.tt/2G5rCg4
The multidisciplinary tumor board for the management of cutaneous neoplasms: A national survey of academic medical centers
To the Editor: The multidisciplinary tumor board (MTB) is a meeting of various medical specialties to discuss the management of patients with cancer. In lung, esophageal, and head and neck cancers, tumor boards increase adherence to national treatment guidelines, decrease treatment delays, are educational, and instill the importance of multidisciplinary care early in training.1-4 However, little is known about the MTB for cutaneous neoplasms. This study assesses the structure, goals, and participation patterns of the MTB in a nationwide sample of academic dermatology centers.
https://ift.tt/2KV6dKm
Subject index
ABC parameters
https://ift.tt/2G3uE4E
CME examination
https://ift.tt/2jNnWab
CME examination
https://ift.tt/2jLXvlc
June iotaderma (#292)
https://ift.tt/2G5rpcM
May iotaderma (#291)
https://ift.tt/2KSQUln
Should medical students follow up on skin biopsy results? When education conflicts with patient privacy
With the increased availability of EHR across clinical medicine, medical trainees are increasingly using this technology as a learning tool. Although medical students are standardly given access to patient records to carry out clinical duties, one study found that 96% of students use EHRs to follow-up on outcomes after patients have left the student's direct care.1 Of these students, 93% found the practice to be educationally beneficial.1 However, what implications does this have for a patient's right to privacy, which reflects the ethical principle of respect for patient autonomy? Autonomy represents self-governance or self-rule whereby a person is free from the control or undue influence of others.
https://ift.tt/2ryKpvM
Dermatology Calendar
https://ift.tt/2Kd1XVh
Author index∗∗January, pp. 1-236; February, pp. 237-432 and S1-S24; March, pp. 433-644 and S25-S84; April, pp. 645-838; May, pp. 839-1034; June, pp. 1035-1294.
Abanmi A (see Thiboutot et al). 2018;78:S1-23 (Supplement article)
https://ift.tt/2wA043a
Cover Sheet for Index
https://ift.tt/2wuJ0eG
In the blink of an eye
It seems like just the other day that I stood before the AAD Board of Directors to discuss my vision for the Journal of the American Academy of Dermatology (JAAD). That "other day" was actually in July 2007, and the presentation was to support my candidacy for Editor of the Journal. I simply cannot believe how quickly time has passed. As the old saying goes, "Time flies when you're having fun."
https://ift.tt/2rAtIAh
Langerhans cell histiocytosis in children
Langerhans cell histiocytosis (LCH) is an inflammatory neoplasia of myeloid precursor cells driven by mutations in the mitogen-activated protein kinase pathway. When disease involves the skin, LCH most commonly presents as a seborrheic dermatitis or eczematous eruption on the scalp and trunk. Evaluation for involvement of other organ systems is essential, because 9 of 10 patients presenting with cutaneous disease also have multisystem involvement. Clinical manifestations range from isolated disease with spontaneous resolution to life-threatening multisystem disease.
https://ift.tt/2Kb5IKP
Instagram and the dermatologist: An ethical analysis
Instagram, one of the most popular social media platforms, is a mobile media sharing app that allows users to share their content with a large, diverse audience. Among the 1 million advertisers1 on Instagram are business savvy physicians who are engaging with potential patients and customers on this platform. The growing application of Instagram as a tool to connect with an audience and build a personal brand presents unique ethical dilemmas to physician users of this platform. Dr M's moral obligations as a physician may conflict with the perceived need to adapt to the changing landscape of marketing in medicine.
https://ift.tt/2ryRNra
Generalized urticaria caused by ingestion of sweet potato cake
Publication date: Available online 10 May 2018
Source:Allergology International
Author(s): David El-Qutob, Fernando Pineda, Isabela Raducan, Miriam Castillo
https://ift.tt/2jPADkU
Acquisition of tolerance to egg allergy in a child with repeated egg-induced acute pancreatitis
Publication date: Available online 10 May 2018
Source:Allergology International
Author(s): Ken-ichi Nagakura, Noriyuki Yanagida, Sakura Sato, Kiyotake Ogura, Motohiro Ebisawa
https://ift.tt/2jN6DWM
Implication of fraction of exhaled nitric oxide and blood eosinophil count in severe asthma
Publication date: Available online 10 May 2018
Source:Allergology International
Author(s): Tomoyuki Soma, Hidetoshi Iemura, Erika Naito, Sachiko Miyauchi, Yoshitaka Uchida, Kazuyuki Nakagome, Makoto Nagata
BackgroundSevere asthma is a complex disease with heterogeneous features and involves type 2 airway inflammation, including eosinophil accumulation. Surrogate biomarkers, fraction of exhaled nitric oxide (FeNO) and blood eosinophil count (b-EOS), may predict eosinophilic airway inflammation. Here we investigated clinical characteristics of severe asthma phenotype using a combined analysis of FeNO and b-EOS.MethodsThis retrospective study examined clinical data of patients with severe asthma (N = 107; median age, 64 years) treated at Saitama Medical University Hospital from 2009 to 2016. Thresholds of FeNO and b-EOS for sputum eosinophil ratio ≥2% were determined using receiver operating characteristic curve (ROC) analysis. Clinical characteristics were analyzed after classifying patients into four subgroups according to these thresholds.ResultsOf 39 induced sputum samples examined, ROC area under the curve for predicting sputum eosinophilia was 82.0% (p = 0.001) for b-EOS and 77.0% (p = 0.006) for FeNO at optimal cut-off values of ≥300/μL and ≥25 ppb, respectively. The number of sensitized allergens was higher in the high FeNO/low b-EOS and high FeNO/high b-EOS subgroups (p < 0.05). The prevalence of chronic sinusitis was higher in the low FeNO/high b-EOS and high FeNO/high b-EOS subgroups (p = 0.04). The high FeNO/high b-EOS subgroup included the largest proportion (approximately 40%) of patients experiencing frequent severe exacerbations. Both low FeNO/low b-EOS and high FeNO/low b-EOS subgroups showed less severe exacerbations.ConclusionsCombined evaluation of FeNO and b-EOS can identify patients with frequent exacerbations and stratify the appropriate therapy for type 2 inflammation-predominant severe asthma.
https://ift.tt/2IeUQuS
World Thyroid Day Recognized Globally on May 25th
World Thyroid Day Recognized Globally
American Thyroid Association® collaborates with International Thyroid Societies
May 25, 2018
On May 25th the American Thyroid Association® (ATA) (www.thyroid.org), in cooperation with the European Thyroid Association (www.eurothyroid.com), will be making an extraordinary effort to promote its year-round goals —focus attention on that small butterfly-shaped gland at the base of the neck that causes approximately 20 million Americans to experience thyroid disease. In addition to the millions who have some form of thyroid disease, it is estimated that more than 12 percent of the U.S. population will develop a thyroid condition during their lifetime.
The important goal of the ATA® and our sister thyroid organizations is to get the word out about Thyroid! Perhaps the most stunning statistics are that up to 60 percent of those with thyroid disease are unaware of their condition and that women are five to eight times more likely than men to have thyroid problems. Almost everyone knows someone affected by thyroid disease or thyroid cancer and the ATA is proud to promote international awareness on World Thyroid Day so that symptoms, diagnosis, and treatment of conditions are available around the globe. If you or someone you know are experiencing thyroid symptoms, make an appointment to see a thyroid specialist – you can find one in your area (in the US and internationally) by using the ATA Physician Referral Tool and you can read up on the thyroid educational materials in the ATA Thyroid Information Library.
The ATA® is the leading organization devoted to thyroid biology and to the prevention and treatment of thyroid disease through excellence in research, clinical care, education, and public health. Our mission assures that we communicate the importance of the thyroid gland, which produces hormones that influence every cell, tissue, and organ in the body. Thyroid hormones regulate the body's metabolism—the rate at which the body produces energy from nutrients and oxygen—and affects critical body functions, such as energy level and heart rate. Through its mission, the ATA® supports the clinicians and researchers who are at the frontlines of thyroid treatments and research. We also work with the public, patients, and their families to educate and increase awareness of thyroid diseases.
ATA® member of 30 years, Dr. Gregory Brent – Chair, Department of Medicine from the University of California-Los Angeles says that, "The ATA has been my professional home since my fellowship and it has been a privilege to serve with my many valued colleagues and with such a committed and talented staff. I am most grateful to my mentors, who have encouraged and guided me. The professional and personal growths I have experienced from my involvement with the ATA are immeasurable."
The ATA Patient Thyroid Information library is just a few clicks away on the ATA® website – http://www.thyroid.org/thyroid-information/ and we encourage you to check back regularly for updates and new materials. We are also pleased to offer many of our brochures in Spanish – http://www.thyroid.org/informacion-sobre-la-tiroides/ and provide a translator on the website for most languages. The ATA website provides easy-to-access, patient-friendly information on topics such as:
Hypothyroidism: One of the most common thyroid conditions that occurs when the thyroid gland does not produce enough thyroid hormone. Symptoms include fatigue, depression, forgetfulness, irregular menses and weight gain. Treatment of hypothyroidism is usually with a synthetic form of thyroid hormone called "levothyroxine." Hashimoto's Thyroiditis is an autoimmune disease affecting the thyroid is the most common cause of hypothyroidism in the US, affecting mostly women. Diagnosis is usually confirmed by symptoms suggesting thyroid underactivity, positive anti-thyroid antibodies, and small goiter (thyroid enlargement) on physical examination. Patients with an elevated blood level of TSH and/or goiter are treated with thyroxine (T4).
On the opposite side of the spectrum is Hyperthyroidism and this occurs when the thyroid gland produces too much thyroid hormone. Symptoms include irritability, nervousness, muscle weakness, unexplained weight loss, sleep disturbances, vision problems and eye irritation. One type of hyperthyroidism, Graves' disease, is an autoimmune disorder that is partly genetic.
In addition to these common thyroid conditions, we also know that Thyroid Cancer is the most rapidly increasing form of cancer in the United States. The American Cancer Society estimates 53,990 new cases of thyroid cancer will be diagnosed in 2018 resulting in over 2,000 deaths. When thyroid cancer is identified and treated early, the majority of patients can be completely cured.
Mary Catherine Petermann whose father was diagnosed with Anaplastic Thyroid Cancer in 2006 describes how the ATA impacted her search for help, "The ATA was a valuable resource for our family when my dad was diagnosed with Anaplastic Thyroid Cancer. When you are faced with a detrimental diagnosis where even a few days can make the difference in life or death, understanding your options quickly is critical. The ATA website offers a one-stop shop for patients and caregivers to find specialists, current clinical trials, general thyroid cancer information, and links to other patient support groups and information" Mary Catherine's father was treated by ATA member physicians at Mayo Clinic and has clean scans as of October 2016.
For thyroid cancer, Endocrinologists can sometimes employ minimally invasive procedures to distinguish thyroid cancer from benign thyroid nodules, which are common in the population. The ATA produces management guidelines for thyroid diseases and thyroid cancer, which, are open to the public and can accessed on the ATA website here: https://www.thyroid.org/professionals/ata-professional-guidelines/
We invite and encourage you to take a moment on the 25th of May, World Thyroid Day, to help ATA® continue to serve patients, families, and the physicians to treat them by making a donation on the ATA® World Thyroid Day Donation Page: https://www.crowdrise.com/world-thyroid-day
Your donation will help ATA continue the important work of education, research, and awareness on this most important disease. No donation is too small and if you would like to make a recurring donation throughout the year, please visit this page: https://www.givedirect.org/donate/?cid=723 and select frequency that is good for you.
Your interest and support help make a positive impact on the lives of so many who struggle with thyroid conditions and thyroid cancer every day and we thank you for joining us and helping carry-out the ATA® mission!
###
The American Thyroid Association (ATA) is the leading worldwide organization dedicated to the advancement, understanding, prevention, diagnosis and treatment of thyroid disorders and thyroid cancer. ATA is an international individual membership organization for over 1,700 clinicians and researchers from 43 countries around the world, representing a broad diversity of medical disciplines. It also serves the public, patients and their family through education and awareness efforts
Celebrating its 95th anniversary, ATA delivers its mission through several key endeavors: the publication of highly regarded monthly journals, THYROID, Clinical Thyroidology, VideoEndocrinology and Clinical Thyroidology for the Public; annual scientific meetings; biennial clinical and research symposia; research grant programs for young investigators, support of online professional, public and patient educational programs; and the development of guidelines for clinical management of thyroid disease.
More information about ATA is found at www.thyroid.org.
The post <i>World Thyroid Day </i>Recognized Globally on May 25th appeared first on American Thyroid Association.
https://ift.tt/2G5iIzp
Nemolizumab in moderate-to-severe atopic dermatitis: Randomized, phase II, long-term extension study
Publication date: Available online 10 May 2018
Source:Journal of Allergy and Clinical Immunology
Author(s): Kenji Kabashima, Masutaka Furue, Jon M. Hanifin, Grazyna Pulka, Andreas Wollenberg, Ryszard Galus, Takafumi Etoh, Ryosuke Mihara, Miwa Nakano, Thomas Ruzicka
BackgroundNemolizumab, an anti–interleukin-31 receptor A monoclonal antibody, improved pruritus, dermatitis, and sleep in adults with moderate-to-severe atopic dermatitis inadequately controlled by topical treatments in a phase II, 12-week, randomized, double-blind, placebo-controlled study (Part A) (NCT01986933).ObjectiveTo assess long-term efficacy and safety of nemolizumab injected subcutaneously every 4 weeks (Q4W) or every 8 weeks (Q8W) in a 52-week double-blind extension (Part B).MethodsDuring Part B, patients continued previous nemolizumab dose (0.1, 0.5, or 2.0 mg/kg Q4W or 2.0 mg/kg Q8W). Part B endpoints included percentage improvement from baseline in pruritus visual analogue scale (VAS) and dermatitis scores (including Eczema Area and Severity Index [EASI]).ResultsOverall, 216/264 patients completed Part A and 191 entered Part B; 131 completed Part B. In 153 patients randomized to nemolizumab in Part A, improvement from baseline in pruritus VAS was maintained/increased from Week 12 to 64, with greatest improvement in the 0.5-mg/kg Q4W group (percentage change from baseline at Week 64: −73.0, −89.6, −74.7, and −79.1 in the 0.1-, 0.5-, and 2.0-mg/kg Q4W and 2.0-mg/kg Q8W groups, respectively). Improvement from baseline in dermatitis scores was also maintained/increased to Week 64 (percent change in EASI score: −68.5, −75.8, −78.9, and −69.3 in the 0.1-, 0.5-, and 2.0-mg/kg Q4W and 2.0-mg/kg Q8W groups, respectively). Over 64 weeks, 83–89% had ≥1 adverse event, with no new safety concerns identified.ConclusionNemolizumab for up to 64 weeks was efficacious and, overall, well tolerated in patients with moderate-to-severe atopic dermatitis inadequately controlled by topical therapy.
https://ift.tt/2KSw0Tf
Retrospective analysis of postoperative interventions in mandibular fractures: a shift towards outpatient day surgery care
The management of fractured mandibles typically involves admission and operation at the time of presentation. While this should involve only a short stay in hospital these patients are surgically stable, and so priority is often given to more urgent cases. We retrospectively evaluated the postoperative medical requirements of patients who were operated on at Fiona Stanley Hospital, Perth, Western Australia between 1 January 2015 and 31 December 2016. Patients were excluded if they had had multiple facial fractures, multiple injuries, had fractures that were comminuted or in edentulous mandibles, and those who had been in hospital for preoperative medical investigations and care.
https://ift.tt/2wx9ZpZ
Comparative evaluation of various low-level laser therapies on bone healing following tooth extraction: An experimental animal study
The aim of this study was to evaluate the effects of helium-neon and gallium-aluminum-arsenide lasers with various doses on bone healing following tooth extraction.
https://ift.tt/2wtGSnJ
Accuracy of CAD/CAM mandibular reconstruction: A three-dimensional, fully virtual outcome evaluation method
Computer-aided design/computer-aided manufacturing (CAD/CAM) methods for mandibular reconstruction have improved both functional and morphological results. We evaluated the accuracy of the CAD/CAM method for mandibular reconstruction and assessed the quantitative and qualitative reproducibility of virtual preoperative planning.
https://ift.tt/2IwqWFT
Medical and dietary management of eosinophilic esophagitis
Eosinophilic esophagitis (EoE) is a disease of chronic, allergen-driven, T-helper 2 (Th2) immune-mediated inflammation that progresses to fibrostenosis of the esophagus if left untreated. There are currently no FDA-approved drugs for the treatment of EoE. This review focuses on medical and dietary management of EoE.
https://ift.tt/2I7swib
Minimally-invasive biomarker studies in eosinophilic esophagitis: a systematic review
Eosinophilic esophagitis (EoE) is a chronic, inflammatory disease of the esophagus which currently requires repeated endoscopic biopsies for diagnosis and monitoring as no reliable non-invasive markers have been identified.
https://ift.tt/2rBZ88q
Efficacy of a single dose of omalizumab for the prevention of ethylene oxide intraoperative anaphylaxis
Ethylene oxide (EtO) is a highly reactive gas commonly used to sterilize pharmaceutical and biomedical thermo-sensitive products, such as infusion sets, cannulae, intubation materials, ventriculo-peritoneal shunts, dialysis catheters and stents 1.
https://ift.tt/2I7ssyX
An EAACI task force report: recognising the potential of the primary care physician in the diagnosis and management of drug hypersensitivity
Adverse drug reactions include drug hypersensitivity reactions (DHRs), which can be immunologically mediated (allergy) or non-immunologically mediated. The high number of DHRs that are unconfirmed and often se...
https://ift.tt/2rwUZDU
Septic arthritis of the sternoclavicular joint: A unique late complication after tracheostomy
Septic arthritis of the sternoclavicular joint is a rare infection associated with significant morbidity and mortality. Several risk factors for septic arthritis have been reported in the literature ranging from immunodeficiency to intravenous drug use.
https://ift.tt/2I8EcRO
Total mandibulectomy defect in the setting of chronic bisphosphonate use
Bisphosphonates are among several drugs known in modern medicine to have a potentially deleterious effect on the mandible with chronic use. While purportedly causing a necrotic reaction in the bone, the complete mechanism is not fully elucidated yet as cases are quite rare in the general public. Despite the esoteric nature of this entity, patients suffering from bisphosphonate induced necrosis have a complicated and prolonged course often involving varying degrees of mandibular debridement with severe cases requiring reconstruction.
https://ift.tt/2ryE4Qp
Editorial Board
Source:Autoimmunity Reviews, Volume 17, Issue 6
https://ift.tt/2G572fU
Sinonasal adenoid cystic carcinoma-role of on-site FNAC: a case report
Adenoid cystic carcinoma (ACC), a rare tumor of epithelial cell origin, commonly arises from the major salivary glands. Uncommonly it may be found outside the salivary glands and it's especially rare in the na...
https://ift.tt/2G4Dcbw
Loss of bronchoprotection to Salbutamol during sputum induction with hypertonic saline: implications for asthma therapy
Sputum induction with hypertonic saline in obstructive airway diseases is generally safe. However, saline induces bronchoconstriction in some patients despite pre-medication with Salbutamol. Our objectives wer...
https://ift.tt/2KOzhTI
Tone-Evoked Acoustic Change Complex (ACC) Recorded in a Sedated Animal Model
Abstract
The acoustic change complex (ACC) is a scalp-recorded cortical evoked potential complex generated in response to changes (e.g., frequency, amplitude) in an auditory stimulus. The ACC has been well studied in humans, but to our knowledge, no animal model has been evaluated. In particular, it was not known whether the ACC could be recorded under the conditions of sedation that likely would be necessary for recordings from animals. For that reason, we tested the feasibility of recording ACC from sedated cats in response to changes of frequency and amplitude of pure-tone stimuli. Cats were sedated with ketamine and acepromazine, and subdermal needle electrodes were used to record electroencephalographic (EEG) activity. Tones were presented from a small loudspeaker located near the right ear. Continuous tones alternated at 500-ms intervals between two frequencies or two levels. Neurometric functions were created by recording neural response amplitudes while systematically varying the magnitude of steps in frequency centered in octave frequency around 2, 4, 8, and 16 kHz, all at 75 dB SPL, or in decibel level around 75 dB SPL tested at 4 and 8 kHz. The ACC could be recorded readily under this ketamine/azepromazine sedation. In contrast, ACC could not be recorded reliably under any level of isoflurane anesthesia that was tested. The minimum frequency (expressed as Weber fractions (df/f)) or level steps (expressed in dB) needed to elicit ACC fell in the range of previous thresholds reported in animal psychophysical tests of discrimination. The success in recording ACC in sedated animals suggests that the ACC will be a useful tool for evaluation of other aspects of auditory acuity in normal hearing and, presumably, in electrical cochlear stimulation, especially for novel stimulation modes that are not yet feasible in humans.
https://ift.tt/2G5FNSm
Tone-Evoked Acoustic Change Complex (ACC) Recorded in a Sedated Animal Model
Abstract
The acoustic change complex (ACC) is a scalp-recorded cortical evoked potential complex generated in response to changes (e.g., frequency, amplitude) in an auditory stimulus. The ACC has been well studied in humans, but to our knowledge, no animal model has been evaluated. In particular, it was not known whether the ACC could be recorded under the conditions of sedation that likely would be necessary for recordings from animals. For that reason, we tested the feasibility of recording ACC from sedated cats in response to changes of frequency and amplitude of pure-tone stimuli. Cats were sedated with ketamine and acepromazine, and subdermal needle electrodes were used to record electroencephalographic (EEG) activity. Tones were presented from a small loudspeaker located near the right ear. Continuous tones alternated at 500-ms intervals between two frequencies or two levels. Neurometric functions were created by recording neural response amplitudes while systematically varying the magnitude of steps in frequency centered in octave frequency around 2, 4, 8, and 16 kHz, all at 75 dB SPL, or in decibel level around 75 dB SPL tested at 4 and 8 kHz. The ACC could be recorded readily under this ketamine/azepromazine sedation. In contrast, ACC could not be recorded reliably under any level of isoflurane anesthesia that was tested. The minimum frequency (expressed as Weber fractions (df/f)) or level steps (expressed in dB) needed to elicit ACC fell in the range of previous thresholds reported in animal psychophysical tests of discrimination. The success in recording ACC in sedated animals suggests that the ACC will be a useful tool for evaluation of other aspects of auditory acuity in normal hearing and, presumably, in electrical cochlear stimulation, especially for novel stimulation modes that are not yet feasible in humans.
https://ift.tt/2G5FNSm
Roxithromycin monotherapy inducing a partial response in a patient with myeloma: a case report
Clarithromycin is an efficacious treatment for myeloma in combination with other anti-myeloma therapy but not as monotherapy. To date, all studies have focused on a clarithromycin-specific effect rather than a...
https://ift.tt/2wq61PY
Exploration of Patient Characteristics and Quality of Life in Patients with Lipoedema Using a Survey
Abstract
Introduction
Lipoedema is a chronic disorder in which excessive fat distribution occurs predominantly from the waist down, resulting in a disproportion between the lower extremities and upper torso. Lipoedema is often not recognized, while patients experience pain and easy bruising. As a long-term condition, lipoedema has a massive effect on patients' lives and mental health. The aim of this study is to explore patient characteristics, quality of life, physical complaints and comorbidities in patients with lipoedema.
Methods
A survey was conducted by email amongst lipoedema patients, consisting of informed consent and multiple questionnaires. The questionnaires included general patient characteristics, physical complaints, comorbidities, RAND-36 and EQ-5D-3L. Participants who responded to a message on the Dutch Lipoedema Association website were recruited.
Results
All lipoedema patients experience physical complaints, with pain (88.3 %) and easy bruising (85.9 %) as primary complaints. The diagnosis was mostly made by a dermatologist after visiting a mean of 2.8 doctors. Furthermore, mean time from onset until diagnosis was 18 years. Quality of life (59.3) was significantly lower than the Dutch female average (74.9; p < 0.001). Additionally, patients with comorbidities had significant lower quality of life (RAND 54.7, p < 0.001).
Conclusions
Lipoedema patients often have severe complaints and experience lower quality of life regarding physical, emotional and social functioning. Additionally, comorbidities have a large impact on quality of life.
https://ift.tt/2rwdg4e
A Novel Computer Algorithm for Printing a 3-Dimensional Nasal Prosthetic
https://ift.tt/2KStzQU
Human Papillomavirus in the Mouth and Throat
https://ift.tt/2rzVHzl
Association of HPV Status at Head and Neck Carcinoma Subsites With Overall Survival
https://ift.tt/2KOaEGC
Three-Dimensional Printing of Nasal Prosthetics
https://ift.tt/2rul1Xo
Microvessel density in head and neck squamous cell carcinoma
Abstract
Purpose
Microvessel density (MVD) corresponds to the intensity of neo-angiogenesis. MVD assessments are based on the expression levels of the vascular endothelium markers such as, e.g., CD34 or CD105. The goal of this study was to assess MVD among patients with head and neck squamous cell carcinoma (HNSCC), and to evaluate the predictive value of MVD in head and neck cancers.
Methods
The study included 49 patients treated for HNSCC and 11 patients with dysplasia of the upper respiratory tract epithelium. Control tissues consisted of 12 normal mucous membranes of the throat. Expression levels of MVD markers were assessed by immunohistochemistry (IHC) using tissue microarrays (TMA). Clinicopathological factors and patients' survival over the 5-year follow-up period were analyzed.
Results
The MVD/CD34 values were found to be significantly elevated in the HNSCCs compared to the non-malignant control tissues (p = 0.001) and to dysplastic tissues. (p = 0.02). Significantly higher MVD/CD105 values were also seen in the tumor compared to the control tissues (p = 0.001) or the dysplastic tissues (p = 0.001). Unexpectedly, significantly lower MVD/CD34 values were seen in the tumor tissues of patients with the T3–T4 tumors compared to those with T1–T2 tumors (p = 0.01).
Conclusions
HNSCCs have statistically higher MVD values compared to dysplasia of the upper respiratory tract epithelium. However, the MVD/CD34 values did not correlate with local invasiveness (the T feature) of HNSCCs. This counterintuitive observation suggests that assessments of MVD as performed on TMA by IHC using anti-CD34 or anti-CD105 antibodies considered to be specific for endothelial cell markers might underestimate the extent of the tumor vascularity in HNSCC.
https://ift.tt/2rwJ8oc
Incidence of akathisia after postoperative nausea and vomiting prophylaxis with droperidol and ondansetron in outpatient surgery: A multicentre controlled randomised trial
https://ift.tt/2rzk28u
Lipomas of the Oral Cavity: Utility of MDM2 and CDK4 in Avoiding Overdiagnosis as Atypical Lipomatous Tumor
Abstract
Traumatized lipomas with degenerative change may demonstrate histopathologic features that mimic atypical lipomatous tumor (ALT). Previously reported series of ALT involving the oral cavity preceded routine use of MDM2 and CDK4 immunohistochemistry. Our aim is to evaluate MDM2 and CDK4 immunohistochemical expression in adipocytic tumors arising in this site, in conjunction with the histiocytic marker PU.1, to determine whether MDM2 and CDK4 impacts classification. 17 cases originally diagnosed as ALT were retrieved and immunohistochemical studies for MDM2, CDK4 and PU.1 were performed. FISH analysis for MDM2 amplification was performed in select cases. For this study group, the male:female ratio was 9:8 and the median age was 62 (range 41–88). All 17 cases presented as well- or predominantly well-circumscribed proliferations of variably sized, mature adipocytes exhibiting uni- or multi-vacuolation with occasional scalloped nuclei and mild nuclear atypia. Variable amounts of fibrous stroma with focal myxoid change and bland spindle cells were identified in 14/17 cases. Lipoblasts or atypical hyperchromatic stromal cells were not identified in any cases. 14 of 17 cases were negative for MDM2 and CDK4 in tumor cells and 11 of these 14 showed weak nuclear positivity for MDM2 in histiocytes. 3 of 17 cases showed weak, multifocal immunohistochemical expression of MDM2 and CDK4. PU.1 highlighted histiocytes in all 17 cases. FISH analysis for MDM2 amplification was negative in all 3 cases with weak MDM2/CDK4 expression. All cases were reclassified as lipoma with degenerative changes. ALT, in all likelihood, is less common than previously thought in this anatomic location and best diagnosed with ancillary studies. MDM2 expression in histiocytes is best interpreted in conjunction with CDK4 immunohistochemistry and confirmatory FISH for MDM2 amplification.
https://ift.tt/2I8w67r
Update on complications in cleft orthognathic surgery
https://ift.tt/2jNL0Ws
Blepharoptosis repair
https://ift.tt/2G2Nzwg
Update on complications in cleft orthognathic surgery
https://ift.tt/2jNL0Ws
Blepharoptosis repair
https://ift.tt/2G2Nzwg
Lipomas of the Oral Cavity: Utility of MDM2 and CDK4 in Avoiding Overdiagnosis as Atypical Lipomatous Tumor
Abstract
Traumatized lipomas with degenerative change may demonstrate histopathologic features that mimic atypical lipomatous tumor (ALT). Previously reported series of ALT involving the oral cavity preceded routine use of MDM2 and CDK4 immunohistochemistry. Our aim is to evaluate MDM2 and CDK4 immunohistochemical expression in adipocytic tumors arising in this site, in conjunction with the histiocytic marker PU.1, to determine whether MDM2 and CDK4 impacts classification. 17 cases originally diagnosed as ALT were retrieved and immunohistochemical studies for MDM2, CDK4 and PU.1 were performed. FISH analysis for MDM2 amplification was performed in select cases. For this study group, the male:female ratio was 9:8 and the median age was 62 (range 41–88). All 17 cases presented as well- or predominantly well-circumscribed proliferations of variably sized, mature adipocytes exhibiting uni- or multi-vacuolation with occasional scalloped nuclei and mild nuclear atypia. Variable amounts of fibrous stroma with focal myxoid change and bland spindle cells were identified in 14/17 cases. Lipoblasts or atypical hyperchromatic stromal cells were not identified in any cases. 14 of 17 cases were negative for MDM2 and CDK4 in tumor cells and 11 of these 14 showed weak nuclear positivity for MDM2 in histiocytes. 3 of 17 cases showed weak, multifocal immunohistochemical expression of MDM2 and CDK4. PU.1 highlighted histiocytes in all 17 cases. FISH analysis for MDM2 amplification was negative in all 3 cases with weak MDM2/CDK4 expression. All cases were reclassified as lipoma with degenerative changes. ALT, in all likelihood, is less common than previously thought in this anatomic location and best diagnosed with ancillary studies. MDM2 expression in histiocytes is best interpreted in conjunction with CDK4 immunohistochemistry and confirmatory FISH for MDM2 amplification.
https://ift.tt/2I8w67r
Lipomas of the Oral Cavity: Utility of MDM2 and CDK4 in Avoiding Overdiagnosis as Atypical Lipomatous Tumor
Abstract
Traumatized lipomas with degenerative change may demonstrate histopathologic features that mimic atypical lipomatous tumor (ALT). Previously reported series of ALT involving the oral cavity preceded routine use of MDM2 and CDK4 immunohistochemistry. Our aim is to evaluate MDM2 and CDK4 immunohistochemical expression in adipocytic tumors arising in this site, in conjunction with the histiocytic marker PU.1, to determine whether MDM2 and CDK4 impacts classification. 17 cases originally diagnosed as ALT were retrieved and immunohistochemical studies for MDM2, CDK4 and PU.1 were performed. FISH analysis for MDM2 amplification was performed in select cases. For this study group, the male:female ratio was 9:8 and the median age was 62 (range 41–88). All 17 cases presented as well- or predominantly well-circumscribed proliferations of variably sized, mature adipocytes exhibiting uni- or multi-vacuolation with occasional scalloped nuclei and mild nuclear atypia. Variable amounts of fibrous stroma with focal myxoid change and bland spindle cells were identified in 14/17 cases. Lipoblasts or atypical hyperchromatic stromal cells were not identified in any cases. 14 of 17 cases were negative for MDM2 and CDK4 in tumor cells and 11 of these 14 showed weak nuclear positivity for MDM2 in histiocytes. 3 of 17 cases showed weak, multifocal immunohistochemical expression of MDM2 and CDK4. PU.1 highlighted histiocytes in all 17 cases. FISH analysis for MDM2 amplification was negative in all 3 cases with weak MDM2/CDK4 expression. All cases were reclassified as lipoma with degenerative changes. ALT, in all likelihood, is less common than previously thought in this anatomic location and best diagnosed with ancillary studies. MDM2 expression in histiocytes is best interpreted in conjunction with CDK4 immunohistochemistry and confirmatory FISH for MDM2 amplification.
https://ift.tt/2I8w67r
The prevalence and impact of otitis media with effusion in children admitted for adeno-tonsillectomy at Dr George Mukhari Academic Hospital, Pretoria, South Africa
Source:International Journal of Pediatric Otorhinolaryngology, Volume 110
Author(s): Timothy Els, Ian Paul Olwoch
IntroductionOtitis media with effusion (OME) is a leading cause of acquired hearing loss in children worldwide. However, previous South African studies have consistently reported the local paediatric OME prevalence to be lower than typically published in international literature. Furthermore, no South African studies have investigated OME in children with adenotonsillar hypertrophy. The objective of this study was to determine the prevalence of OME in children admitted for adeno-tonsillectomy at our institution in Pretoria, South Africa. In addition, the study sought to gauge the impact of OME on quality of life using a validated questionnaire (OM-6).MethodsA cross-sectional, observational study was conducted between July 2015 and May 2016 at the Otorhinolaryngology outpatient department at DGMAH. he study included 109 consecutively sampled children, aged 2–12 years (mean 6.1; 49.7% female). Pneumatic otoscopy and tympanometry were performed on all participants. Adenoid hypertrophy was quantified using he adenoid-nasopharyngeal ratio (ANR) on a lateral post-nasal space radiograph (Fujioka's method). The OM-6 questionnaire was completed for each participant. Pure tone audiometry was performed for participants diagnosed with OME.ResultsThe prevalence of bilateral OME was 11.9%. For unilateral OME, the prevalence was 22.9% and 16.5%, for the left and right ears, respectively (p > 0.05). The mean hearing loss (SD) was 19.8 dB (9.4). Clinically significant adenoid hypertrophy (ANR ≥ 0.71) was present in 43% of participants. There was no statistically significant (p > 0.05) correlation between the presence OME and adenoid hypertrophy. The mean total OM-6 survey score was 1.67 (SD ± 0.59) in children with OME, and 1.31 (SD ± 0.45) without OME, showing no statistically significant difference (p > 0.05). There was a significant (P < 0.05) correlation between OME and the presence of atopy.ConclusionAdeno-tonsillar pathology may play an aetio-pathological role in the development of OME. However, this may be due to the presence of biofilms rather than obstructive adenoid hypertrophy, given the lack of a significant (p > 0.05) correlation between adenoid hypertrophy and OME. Whilst OME was not found to impair quality of life in this population group, the validity of the OM-6 in the South African paediatric population requires further investigation.
https://ift.tt/2jLID6r
Reduced Hemidiaphragmatic Paresis With a “Corner Pocket” Technique for Supraclavicular Brachial Plexus Block: Single-Center, Observer-Blinded, Randomized Controlled Trial
https://ift.tt/2G3CnPX
A Cadaveric Study Investigating the Mechanism of Action of Erector Spinae Blockade
https://ift.tt/2KRLuXW
Study of Endonasal Endoscopic Dacryo-cystorhinostomy with Special Reference to Mitomycin-C
Abstract
The aim of this study was to evaluate long-term results in patients with nasolacrimal duct obstruction treated with intranasal endoscopic dacryo-cystorhinostomy (DCR) with intraoperative topical application of mitomycin-C. The procedure was carried out in 34 subjects (41eyes). Patients with post-saccal stenosis were divided into two groups, 21 patients were treated with intranasal endoscopic dacryo-cystorhinostomy with intraoperative application of Mitomycin-C (MMC) and the other 20 cases underwent procedure only without Mitomycin-C. Effectiveness of drug at rhinostomy site was assessed in relation to granulation formation, adhesions and ostium size. Outcomes were assessed on the basis of relief of subjective symptoms, patency of rhinostomy site confirmed via syringing and final ostium size at end of 6 months, 1 and 2 year. Success rate was 100% at 3 and 6 months follow-up in both the groups. At the end of 1 year, one failure was noted in control group which had to undergo revision endoscopic DCR with overall success rate decreasing to 97%. This was maintained at the end of second year. Results revealed that adjunctive use of Mitomycin-C was effective at 3 months when granulation tissue formation was significantly lesser in MMC group compared to no MMC group. Topical application of Mitomycin-C has been found to be beneficial in preventing adhesions and also resulted in larger neo-ostium. We concluded that results with intraoperative topical application of Mitomycin-C in endoscopic dacryo-cystorhinostomy are encouraging. It can favourably affect wound healing and result in larger rhinostomy size/ostium. Mitomycin-C is safe and effective adjunct in endoscopic dacryo-cystorhinostomy procedure.
Level of evidence Individual prospective cohort study, level 1b
https://ift.tt/2wqi5kl
Endoscope-assisted retrosigmoid approach in hemifacial spasm: our experience
Publication date: Available online 9 May 2018
Source:Brazilian Journal of Otorhinolaryngology
Author(s): Giampietro Ricci, Arianna Di Stadio, Luca D'Ascanio, Ruggero La Penna, Franco Trabalzini, Antonio Della Volpe, Jacques Magnan
IntroductionThe use of surgical decompression of facial hemispasm due to the loop in the internal auditory canal is not always accepted due to the risk related to the surgical procedure. Currently a new surgical technique allows surgeons to work in safer conditions.ObjectiveTo report the results with endoscope-assisted retrosigmoid approach for facial nerve microvascular decompression in hemifacial spasm due to neurovascular conflict. The surgical technique is described.MethodsWe made a prospective study in a tertiary referral center observing 12 (5 male, 7 female) patients, mean age 57.5 (range 49–71) years affected by hemifacial spasm, that were submitted to an endoscope assisted retrosigmoid approach for microvascular decompression. We evaluated intra-operative findings, postoperative HFS resolution and complication rates.ResultsHemifacial spasm resolution was noticed in 9/12 (75%) cases within 24h after surgery and in 12/12 (100%) subjects within 45 days. A significant (p<0.001) correlation between preoperative historical duration of hemifacial spasm and postoperative recovery timing was recorded. Only 1 patient had a complication (meningitis), which resolved after intravenous antibiotics with no sequelae. No case of cerebrospinal fluid leak, facial palsy or hearing impairment was recorded. Hemifacial spasm recurrence was noticed in the only subject where the neurovascular conflict was due to a vein within the internal auditory canal.ConclusionsThe endoscope assisted retrosigmoid approach technique offers an optimal visualization of the neurovascular conflict thorough a minimally invasive approach, thus allowing an accurate decompression of the facial nerve with low complication rates. Due to the less invasive nature, the procedure should be considered in functional surgery of the cerebellar pontine angle as hemifacial spasm treatment, specially when the procedure is performed by an otolaryngologist.
https://ift.tt/2Iqp29M
Comparison of the efficacy of vocal training and vocal microsurgery in patients with early vocal fold polyp
Publication date: Available online 9 May 2018
Source:Brazilian Journal of Otorhinolaryngology
Author(s): Hanqing Wang, Pan Zhuge, Huihua You, Yulan Zhang, Zhifeng Zhang
IntroductionVocal fold polyp is a benign proliferative disease in the superficial lamina propria of the vocal fold, and vocal microsurgery can improve the voice quality of patients with vocal fold polyp. In preliminary studies, we found that vocal training could improve the vocal quality of patients with early vocal fold polyp.ObjectiveThis study aimed to compare the efficacies of vocal training and vocal microsurgery in patients with early vocal fold polyp.MethodsA total of 38 patients with early vocal fold polyp underwent 3 months of vocal training (VT group); another 31 patients with early vocal fold polyp underwent vocal microsurgery (VM group); and 33 healthy volunteers were included as the control group. All subjects were assessed using laryngostroboscopy, voice handicap index, and dysphonia severity index, and the efficacies of vocal training and vocal microsurgery were compared.ResultsThe cure rates of vocal training and vocal microsurgery were 31.6% (12/38) and 100% (31/31), respectively. The intragroup paired-sample t-test showed that the post treatment vocal handicap index, maximum phonation time, highest frequency (F0-high), lowest intensity (I-low), and dysphonia severity index in both the VT and VM groups were better than those before treatment, except for the jitter value. The intergroup independent-sample t-test revealed that the emotional values of vocal handicap index (t=−2.22, p=0.03), maximum phonation time (t=2.54, p=0.013), jitter (t=−2.11, p=0.03), and dysphonia severity index (t=3.24, p=0.002) in the VT group were better than those in the VM group.ConclusionsBoth, vocal training and vocal microsurgery could improve the voice quality of patients with early vocal fold polyp, and these methods present different advantages.
https://ift.tt/2K9sWRy
Study of Endonasal Endoscopic Dacryo-cystorhinostomy with Special Reference to Mitomycin-C
Abstract
The aim of this study was to evaluate long-term results in patients with nasolacrimal duct obstruction treated with intranasal endoscopic dacryo-cystorhinostomy (DCR) with intraoperative topical application of mitomycin-C. The procedure was carried out in 34 subjects (41eyes). Patients with post-saccal stenosis were divided into two groups, 21 patients were treated with intranasal endoscopic dacryo-cystorhinostomy with intraoperative application of Mitomycin-C (MMC) and the other 20 cases underwent procedure only without Mitomycin-C. Effectiveness of drug at rhinostomy site was assessed in relation to granulation formation, adhesions and ostium size. Outcomes were assessed on the basis of relief of subjective symptoms, patency of rhinostomy site confirmed via syringing and final ostium size at end of 6 months, 1 and 2 year. Success rate was 100% at 3 and 6 months follow-up in both the groups. At the end of 1 year, one failure was noted in control group which had to undergo revision endoscopic DCR with overall success rate decreasing to 97%. This was maintained at the end of second year. Results revealed that adjunctive use of Mitomycin-C was effective at 3 months when granulation tissue formation was significantly lesser in MMC group compared to no MMC group. Topical application of Mitomycin-C has been found to be beneficial in preventing adhesions and also resulted in larger neo-ostium. We concluded that results with intraoperative topical application of Mitomycin-C in endoscopic dacryo-cystorhinostomy are encouraging. It can favourably affect wound healing and result in larger rhinostomy size/ostium. Mitomycin-C is safe and effective adjunct in endoscopic dacryo-cystorhinostomy procedure.
Level of evidence Individual prospective cohort study, level 1b
https://ift.tt/2wqi5kl
Efficacy of a shower cream and a lotion with skin‐identical lipids in healthy subjects with atopic dry skin
Journal of Cosmetic Dermatology, EarlyView.
https://ift.tt/2rzK1MQ
Principles of Reconstruction After Mohs Surgery
Abstract
Purpose of Review
Reconstruction of cutaneous defects is a key component following completion of extirpative surgery, with a primary aim of restoring form and function to sensitive regions of the face and scalp. We review flap physiology, defect analysis, and reconstructive options in the reconstructive ladder, and describe key principles in unit reconstruction.
Recent Findings
An overview of time-honored principles and techniques including healing by second intention, skin grafting, and local flaps is described. More contemporary techniques such as the use of perichondrium-cutaneous composite grafts, and multi-layered reconstruction of complex nasal defects including the use of forehead flaps are succinctly discussed.
Summary
This concise review hopes to highlight key nuances in defect analysis, decision-making processes in choice of reconstruction, and considerations when performing reconstruction on various aesthetic units of the face and scalp.
https://ift.tt/2Kc4TSf
Severe Atopic Dermatitis in Children
Abstract
Purpose of Review
Severe atopic dermatitis (AD) in childhood leads to significant morbidity including psychosocial problems and infectious complications. There are only a few approved treatment options for these patients. These include topical corticosteroids and tacrolimus ointment, which are associated with potential side effects.
Recent Findings
In order to find better and safer treatments, further understanding of AD mechanisms is needed. Primary skin barrier defects play an important role in the pathogenesis of AD. In addition, the suppression of skin barrier functions by Th2 inflammation also plays an important role in the persistence and recurrence of AD. Cytokines in the Th2 pathway, which includes IL-4, IL-13, TSLP, IL-25, IL-31, and IL-33, are potential therapeutic targets in AD. Other potential targets of AD are Janus kinase, phospholipase A2, aryl hydrocarbon receptor, and skin microbiota.
Summary
A better understanding of the pathogenesis of AD will provide future direction for treatment.
https://ift.tt/2K61nJ1
Newborn Screening for Severe Combined Immunodeficiency
Abstract
Purpose of Review
This review provides a brief history of newborn screening (NBS) for severe combined immunodeficiency (SCID), discusses the theoretical basis for the T cell receptor excision circle (TREC) assay, highlights the results of recent studies using the TREC, and provides practical advice for the evaluation of infants with an abnormal TREC assay.
Recent Findings
Currently, all but three states perform NBS for SCID in the USA. NBS using the TREC assay is highly sensitive in identifying infants with SCID and may also identify infants with T cell lymphopenia due to other causes such as congenital syndromes, multiple congenital anamolies, and some combined immunodeficiencies.
Summary
Regardless of the genetic etiology, all forms of SCID are characterized by a severe deficiency of naïve T cells. TRECs are a biomarker of newly formed, naïve T cells that have recently left the thymus. Consequently, the TREC assay identifies infants with SCID and other causes of severe T cell lymphopenia.
https://ift.tt/2rvtTwW
Severe Atopic Dermatitis in Children
Abstract
Purpose of Review
Severe atopic dermatitis (AD) in childhood leads to significant morbidity including psychosocial problems and infectious complications. There are only a few approved treatment options for these patients. These include topical corticosteroids and tacrolimus ointment, which are associated with potential side effects.
Recent Findings
In order to find better and safer treatments, further understanding of AD mechanisms is needed. Primary skin barrier defects play an important role in the pathogenesis of AD. In addition, the suppression of skin barrier functions by Th2 inflammation also plays an important role in the persistence and recurrence of AD. Cytokines in the Th2 pathway, which includes IL-4, IL-13, TSLP, IL-25, IL-31, and IL-33, are potential therapeutic targets in AD. Other potential targets of AD are Janus kinase, phospholipase A2, aryl hydrocarbon receptor, and skin microbiota.
Summary
A better understanding of the pathogenesis of AD will provide future direction for treatment.
https://ift.tt/2K61nJ1
Newborn Screening for Severe Combined Immunodeficiency
Abstract
Purpose of Review
This review provides a brief history of newborn screening (NBS) for severe combined immunodeficiency (SCID), discusses the theoretical basis for the T cell receptor excision circle (TREC) assay, highlights the results of recent studies using the TREC, and provides practical advice for the evaluation of infants with an abnormal TREC assay.
Recent Findings
Currently, all but three states perform NBS for SCID in the USA. NBS using the TREC assay is highly sensitive in identifying infants with SCID and may also identify infants with T cell lymphopenia due to other causes such as congenital syndromes, multiple congenital anamolies, and some combined immunodeficiencies.
Summary
Regardless of the genetic etiology, all forms of SCID are characterized by a severe deficiency of naïve T cells. TRECs are a biomarker of newly formed, naïve T cells that have recently left the thymus. Consequently, the TREC assay identifies infants with SCID and other causes of severe T cell lymphopenia.
https://ift.tt/2rvtTwW
Cystatin F as a regulator of immune cell cytotoxicity
Abstract
Cysteine cathepsins are lysosomal peptidases involved in the regulation of innate and adaptive immune responses. Among the diverse processes, regulation of granule-dependent cytotoxicity of cytotoxic T-lymphocytes (CTLs) and natural killer (NK) cells during cancer progression has recently gained significant attention. The function of cysteine cathepsins is regulated by endogenous cysteine protease inhibitors—cystatins. Whereas other cystatins are generally cytosolic or extracellular proteins, cystatin F is present in endosomes and lysosomes and is thus able to regulate the activity of its target directly. It is delivered to endosomal/lysosomal vesicles as an inactive, disulphide-linked dimer. Proteolytic cleavage of its N-terminal part leads to the monomer, the only form that is a potent inhibitor of cathepsins C, H and L, involved in the activation of granzymes and perforin. In NK cells and CTLs the levels of active cathepsin C and of granzyme B are dependent on the concentration of monomeric, active cystatin F. In tumour microenvironment, inactive dimeric cystatin F can be secreted from tumour cells or immune cells and further taken up by the cytotoxic cells. Subsequent monomerization and inhibition of cysteine cathepsins within the endosomal/lysosomal vesicles impairs granzyme and perforin activation, and provokes cell anergy. Further, the glycosylation pattern has been shown to be important in controlling secretion of cystatin F from target cells, as well as internalization by cytotoxic cells and trafficking to endosomal/lysosomal vesicles. Cystatin F is therefore an important mediator used by bystander cells to reduce NK and T-cell cytotoxicity.
https://ift.tt/2G2GvzZ
Myeloid-derived suppressor cells (MDSCs) in patients with solid tumors: considerations for granulocyte colony-stimulating factor treatment
Abstract
Myeloid-derived suppressor cells (MDSCs) have been shown to contribute to tumor escape from host immune surveillance and to cancer progression by production of tumor-promoting soluble factors. Granulocyte colony-stimulating factor (G-CSF) is a principle cytokine controlling granulocyte number. Recombinant human G-CSF (rhG-CSF) has become the main therapeutic agent for the treatment of neutropenia and prophylaxis of febrile neutropenia in cancer patients. However, we show here that rhG-CSF triggers accumulation of granulocytic and monocytic subsets. Consequently, we discuss the pharmacological use of granulopoiesis stimulating factors not only in the context of febrile neutropenia but also from the perspective of MDSC-dependent and MDSC-independent mechanisms of immunosuppression and cancer angiogenesis.
https://ift.tt/2jNbMxY
Case 14-2018: A 68-Year-Old Woman with a Rash, Hyponatremia, and Uveitis
Presentation of Case. Dr. AbdulRasheed A. Alabi (Medicine): A 68-year-old woman was admitted to this hospital during the winter because of a rash, hyponatremia, and anterior uveitis. One month before admission, the patient traveled abroad. She spent a week in Sweden visiting family members,…
https://ift.tt/2jKlotn
Erbium Yttrium–Aluminum–Garnet Laser Versus Traditional Bur in the Extraction of Impacted Mandibular Third Molars: Analysis of Intra- and Postoperative Differences
https://ift.tt/2KbP91z
The Effect of Different Doses of Extracorporeal Shock Waves on Experimental Model Mandibular Distraction
https://ift.tt/2IpOyw1
Endoscopically Assisted Transoral Gap Arthroplasty of the Temporomandibular Joint Ankylosis in a Pediatric Patient
https://ift.tt/2wuJSzZ
Review of “Sex Differences in Faculty Rank Among Academic Surgeons in the United States in 2014” by Bluemthal DM, Bergmark RW, Raol N, Bohnen JD, Eloy JA, Gray ST in Ann Surg [published online ahead of print January 12, 2018] doi: 10.1097/SLA.0000000000002662
Simple Bone Cyst Mimicking Stafne Bone Defect
https://ift.tt/2wx8U1C
Development of Human Face Literature Database Using Text Mining Approach: Phase I
https://ift.tt/2IrUeWk
Cervical Tracheal Resection and Anastomosis for Postintubation Tracheal Stenosis
https://ift.tt/2wqfabu
Deepening Fornix Technique Using Central Split-Medium Thickness Skin Graft to Treat Contracted Anophthalmic Sockets
https://ift.tt/2ItKZoo
Extra-Articular Ankylosis of the Coronoid Process With the Zygomatic Bone: A Rare Case Treated With an Alternative Approach
Comparison of Piezosurgery and Hammer-Chisel in Endoscopic Dacryocystorhinostomy
https://ift.tt/2IsijMB
Surgical Management of the Recent Orbital War Injury
https://ift.tt/2wCMNXJ
Isolated Bilateral Macrostomia
https://ift.tt/2IvyiJU
Congenital Calvarial Hemangioma
https://ift.tt/2K8kzFT
Delayed Reduction of Zygomatic Arch Fracture: Effectiveness of the Rowe Zygoma Elevator
https://ift.tt/2IpOvAl