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https://www.readbyqxmd.com/read/28429515/a-device-to-measure-secretion-of-individual-sweat-glands-for-diagnosis-of-peripheral-neuropathy
#1
Adam J Loavenbruck, James S Hodges, Vincenzo Provitera, Maria Nolano, Gwen Wendelshafer-Crabb, William R Kennedy
INTRODUCTION: There is a need for quantitative, precise assessment of small fiber peripheral nerve function. We tested a customized camera device and protocol designed to quantify secretions of individual sweat glands (SGs). MATERIALS AND METHODS: Testing was performed on 178 healthy controls and 20 neuropathy subjects. Sweating was stimulated on a 2.25 cm(2) skin area by iontophoresis of pilocarpine. The camera imaged sweat from 50-400 sweat ducts. We calculated secretion rate of individual SGs, total sweat volume, and number of secreting SGs at four body sites...
April 21, 2017: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/28429507/mucinous-hidradenoma-in-a-child-a-case-report-and-review-of-the-literature
#2
Aadil Ahmed, Wendy Kim, Jodi Speiser
Hidradenomas are benign tumors of the sweat glands that are rarely reported in childhood. The presence of mucinous change in hidradenomas, which consists of variable numbers of mucin-rich goblet cells, is occasionally observed in some adult clinical practices. However, it has not been previously reported in the pediatric population. Herein, we present a unique case of a mucinous hidradenoma presenting on the thigh of a 3-year old boy. The clinical presentation and histological features of the case, along with a literature review of published case reports of pediatric hidradenomas are described...
April 21, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28421154/aggressive-digital-papillary-adenocarcinoma-of-the-hand-presenting-as-a-felon
#3
Justin R Bryant, Preston Gardner, Matthew Yousif, John C Pui, Raymond T Hajjar, E Aron Haass
Aggressive digital papillary adenocarcinoma is a rare eccrine sweat gland malignancy that is frequently misdiagnosed at initial presentation. Histologically, this tumor is similar in appearance to many adenocarcinomas and as such may be diagnosed as a metastatic lesion. We present the case of a patient with digital papillary adenocarcinoma, which was initially diagnosed as a felon. No consensus has been published regarding the treatment of this disease. A review of the diagnosis, pathology, treatment, and adjunctive treatments of aggressive digital papillary adenocarcinoma are also included...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28419121/the-magnitude-of-ivacaftor-effects-on-fluid-secretion-via-r117h-cftr-channels-human-in-vivo-measurements
#4
Jessica E Char, Colleen Dunn, Zoe Davies, Carlos Milla, Richard B Moss, Jeffrey J Wine
We optically measured effects of orally available ivacaftor (Kalydeco®) on sweat rates of identified glands in 3 R117H subjects, each having a unique set of additional mutations, and compared them with 5 healthy control subjects tested contemporaneously. We injected β-adrenergic agonists intradermally to stimulate CFTR-dependent 'C-sweat' and methacholine to stimulate 'M-sweat', which persists in CF subjects. We focused on an R117H-7T/F508del subject who produced quantifiable C-sweat off ivacaftor and was available for 1 blinded, 3 off ivacaftor, and 3 on ivacaftor tests, allowing us to estimate in vivo fold-increase in sweat rates produced by ivacaftor's effect on the open probability (PO) of R117H-CFTR...
2017: PloS One
https://www.readbyqxmd.com/read/28416667/autonomous-sweat-extraction-and-analysis-applied-to-cystic-fibrosis-and-glucose-monitoring-using-a-fully-integrated-wearable-platform
#5
Sam Emaminejad, Wei Gao, Eric Wu, Zoe A Davies, Hnin Yin Yin Nyein, Samyuktha Challa, Sean P Ryan, Hossain M Fahad, Kevin Chen, Ziba Shahpar, Salmonn Talebi, Carlos Milla, Ali Javey, Ronald W Davis
Perspiration-based wearable biosensors facilitate continuous monitoring of individuals' health states with real-time and molecular-level insight. The inherent inaccessibility of sweat in sedentary individuals in large volume (≥10 µL) for on-demand and in situ analysis has limited our ability to capitalize on this noninvasive and rich source of information. A wearable and miniaturized iontophoresis interface is an excellent solution to overcome this barrier. The iontophoresis process involves delivery of stimulating agonists to the sweat glands with the aid of an electrical current...
April 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28412687/application-of-tegafur-gimer-docetaxel-and-carboplatin-in-head-and-neck-squamous-cell-carcinoma-therapy
#6
Baoqing Wang, Shiqiang Zhang, Qingping Xue, Yan Xie, Guiqin Ling, Ziquan Wang, Xinjun Chen
Squamous cell carcinoma, in the clinical manifestation, is a form of cancer derived from lesions of keratinocytes of epidermis or accessories such as sebaceous ducts, hair follicles, sweat glands, etc. The disease is more common in older men, with prone locations at patients' scalp, face, neck and arms and other exposed parts. Head and neck squamous cell carcinoma (HNSCC) causes a serious impact on patients' daily life, making patients suffer from double blow in mental and physical aspects and reducing patients' life quality...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28409065/malignant-clear-cell-hidradenoma-of-the-breast
#7
Isaac Chambers, Ahmad K Rahal, Pavan S Reddy, K James Kallail
A 58-year-old female had a mass in the right breast palpable beneath the areola. A mammogram revealed a 1.5-centimeter soft tissue density that was confirmed with a subsequent ultrasound. The patient underwent a core needle biopsy which was initially reported as a moderately differentiated invasive ductal carcinoma. Immunohistochemical analysis revealed negative staining for estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor (HER2), mammaglobin, and gross cystic disease fluid protein 15 (GCDFP-15)...
March 1, 2017: Curēus
https://www.readbyqxmd.com/read/28400779/making-plants-break-a-sweat-the-structure-function-and-evolution-of-plant-salt-glands
#8
REVIEW
Maheshi Dassanayake, John C Larkin
Salt stress is a complex trait that poses a grand challenge in developing new crops better adapted to saline environments. Some plants, called recretohalophytes, that have naturally evolved to secrete excess salts through salt glands, offer an underexplored genetic resource for examining how plant development, anatomy, and physiology integrate to prevent excess salt from building up to toxic levels in plant tissue. In this review we examine the structure and evolution of salt glands, salt gland-specific gene expression, and the possibility that all salt glands have originated via evolutionary modifications of trichomes...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28397272/head-and-neck-sweat-gland-adenocarcinoma-a-population-based-perspective-of-a-rare-entity
#9
Aykut A Unsal, Varesh R Patel, Sei Y Chung, Albert H Zhou, Soly Baredes, Jean Anderson Eloy
OBJECTIVES: Head and neck sweat gland adenocarcinoma (HNSGA) is an extremely rare malignancy. We present the first population-based analysis regarding this entity. STUDY DESIGN: Retrospective population-based analysis. METHODS: Using the Surveillance, Epidemiology, and End Results registry from 2000 to 2013, we extracted 627 cases of HNSGA. Data were analyzed for incidence trends, demographic and clinicopathologic traits, and predictors of disease-specific survival (DSS)...
April 11, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28394861/endocrine-mucin-producing-sweat-gland-carcinoma-treated-with-mohs-micrographic-surgery
#10
Brian L Scott, Cynthia O Anyanwu, Travis Vandergriff, Rajiv I Nijhawan
No abstract text is available yet for this article.
April 6, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28394798/sox10-and-dog1-expression-in-primary-adnexal-tumors-of-the-skin
#11
Cecilia Lezcano, Jonhan Ho, Raja R Seethala
Primary skin adnexal tumors can be challenging to classify and must be discerned from cutaneous adenocarcinoma metastases from various sites. We evaluated expression of Sox10 and DOG1 in normal cutaneous adnexa and in 194 primary skin adnexal tumors, and compared their performance in discriminating primary skin adnexal tumors from cutaneous metastatic adenocarcinomas with that of p40 and p63. In normal skin adnexa, we noted Sox10 expression in both the secretory and myoepithelial cells in eccrine glands, but only in myoepithelial cells in apocrine glands...
March 27, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28369282/recessive-dystrophic-epidermolysis-bullosa-results-in-painful-small-fibre-neuropathy
#12
Sofia von Bischhoffshausen, Dinka Ivulic, Paola Alvarez, Victor C Schuffeneger, Juan Idiaquez, Constanza Fuentes, Pilar Morande, Ignacia Fuentes, Francis Palisson, David L H Bennett, Margarita Calvo
Small fibres in the skin are vulnerable to damage in metabolic or toxic conditions such as diabetes mellitus or chemotherapy resulting in small fibre neuropathy and associated neuropathic pain. Whether injury to the most distal portion of sensory small fibres due to a primary dermatological disorder can cause neuropathic pain is still unclear. Recessive dystrophic epidermolysis bullosa (RDEB) is a rare condition in which mutations of proteins of the dermo-epidermal junction lead to cycles of blistering followed by regeneration of the skin...
March 28, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28353163/expression-of-s100a2-and-s100p-in-human-eccrine-sweat-glands-and-their-application-in-differentiating-secretory-coil-like-from-duct-like-structures-in-the-3d-reconstituted-eccrine-sweat-spheroids
#13
Haihong Li, Mingjun Zhang, Liyun Chen, Bingna Zhang, Cuiping Zhang
Secretory coils and ducts are two components of eccrine sweat glands with different structures and functions. In our previous study, we combined keratins and α-SMA to distinguish between secretory coils and ducts. However, the key deficiency of the method was that none of the antibodies used was specific for ducts. In this study, we first examined the co-localization of K5/K7, α-SMA/K14, K7/S100P and α-SMA/S100A2 by double-immunofluorescence staining to confirm the localization of S100P and S100A2 in native human eccrine sweat glands, and second we identified secretory coil-like and duct-like structures in the 3D reconstituted eccrine sweat gland spheroids by double-immunofluorescence staining for K7/S100P and α-SMA/S100A2...
March 28, 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28350693/prognostic-value-of-the-staging-system-for-eyelid-tumors-in-the-7th-edition-of-the-american-joint-committee-on-cancer-staging-manual
#14
Joshua Ford, Sudip Thakar, Bradley Thuro, Bita Esmaeli
PURPOSE: To determine the prognostic value of the staging criteria for eyelid tumors in the 7th edition of the American Joint Committee on Cancer (AJCC) staging manual and to determine, for each type of eyelid tumor, which AJCC T categories are associated with increased risk of nodal metastasis and thus potential usefulness of sentinel lymph node biopsy. METHODS: Systematic review and analysis of articles found by searching PubMed and Google Scholar using the search terms "AJCC," "eyelid," "carcinoma," and "melanoma...
March 27, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28347286/malignant-acrospiroma-a-case-report-in-the-era-of-next-generation-sequencing
#15
Maria Diab, Ali Gabali, Muaiad Kittaneh
BACKGROUND: Malignant acrospiroma is a rare tumor of the eccrine sweat glands accounting for around 6% of all malignant eccrine tumors. Typically, it presents as large ulcerated nodules, and diagnosis can be challenging as it has great overlap with its benign counterpart. CASE PRESENTATION: We herein report a case of acral malignant acrospiroma, initially treated with surgical excision and adjuvant radiotherapy. After metastatic disease was confirmed, subject received multiple lines of chemo- as well as targeted therapy...
March 27, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28343568/thermogenic-and-psychogenic-recruitment-of-human-eccrine-sweat-glands-variations-between-glabrous-and-non-glabrous-skin-surfaces
#16
Christiano A Machado-Moreira, Nigel A S Taylor
Human eccrine sweat-gland recruitment and secretion rates were investigated from the glabrous (volar) and non-glabrous hand surfaces during psychogenic (mental arithmetic) and thermogenic stimuli (mild hyperthermia). It was hypothesised that these treatments would activate glands from both skin surfaces, with the non-thermal stimulus increasing secretion rates primarily by recruiting more sweat glands. Ten healthy men participated in two seated, resting trials in temperate conditions (25-26°C). Trials commenced under normothermic conditions during which the first psychogenic stress was applied...
April 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28343365/sox10-immunohistochemistry-in-sweat-ductal-glandular-neoplasms
#17
David S Cassarino, Albert Su, Bruce A Robbins, David Altree-Tacha, Seong Ra
BACKGROUND: SOX10 is a newer Schwannian and melanocytic marker that has generated great interest for its relative sensitivity and specificity in the diagnosis of neural crest-derived tumors. Previous studies with SOX10 have shown positive immunohistochemical expression in cutaneous eccrine glands and negative expression in eccrine ducts, apocrine glands and hair follicles. Thus, we hypothesized that some sweat gland tumors of presumed eccrine origin would be positive for SOX10, whereas apocrine-derived sweat gland tumors would not...
March 25, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28330446/eudor-a-multi-centre-research-program-a-naturalistic-european-multi-centre-clinical-study-of-edor-test-in-adult-patients-with-primary-depression
#18
Marco Sarchiapone, Miriam Iosue, Vladimir Carli, Mario Amore, Enrique Baca-Garcia, Anil Batra, Doina Cosman, Philippe Courtet, Guido Di Sciascio, Ricardo Gusmao, Tadeusz Parnowski, Peter Pestality, Pilar Saiz, Johannes Thome, Anders Tingström, Marcin Wojnar, Patrizia Zeppegno, Lars-Håkan Thorell
BACKGROUND: Electrodermal reactivity has been successfully used as indicator of interest, curiosity as well as depressive states. The measured reactivity depends on the quantity of sweat secreted by those eccrine sweat glands that are located in the hypodermis of palmar and plantar regions. Electrodermal hyporeactive individuals are those who show an unusual rapid habituation to identical non-significant stimuli. Previous findings suggested that electrodermal hyporeactivity has a high sensitivity and a high specificity for suicide...
March 23, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28300854/randomized-placebo-and-active-controlled-crossover-study-of-the-safety-and-efficacy-of-thvd-102-a-fixed-dose-combination-of-oxybutynin-and-pilocarpine-in-subjects-with-primary-focal-hyperhidrosis
#19
David M Pariser, Janakan Krishnaraja, Thomas M Tremblay, R Michael Rubison, Ted W Love, Benjamin F McGraw
BACKGROUND: While muscarinic antagonists (anticholinergics) have shown efficacy in treating primary focal hyperhidrosis (PFH), side effects - most commonly dry mouth - are intolerable for most patients. THVD-102, a fixed-dose combination product has been developed combining oxybutynin, a muscarinic antagonist, and pilocarpine, a muscarinic agonist. The pilocarpine is at a dose level and release profile optimized to correct salivary flow impaired by oxybutynin yet not interfere with the therapeutic muscarinic antagonist effect of oxybutynin upon the sweat glands...
February 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28299221/endocrine-mucin-producing-sweat-gland-carcinoma-a-histological-challenge
#20
Mary Anne Brett, Samih Salama, Gabriella Gohla, Salem Alowami
Endocrine mucin-producing sweat gland carcinoma (EMPSGC) is a rare adnexal tumor of the skin with low-grade cytological features and neuroendocrine differentiation. It has a predilection for the skin of the eyelid, but has also been reported in the face and rarely extra-facial locations. The tumor is seen more frequently in women and on average affects the elderly. It is histologically and immunohistochemically analogous to solid papillary carcinoma of the breast/endocrine ductal carcinoma in situ with a nodular, solid, papillary, and/or cribriforming architecture, neuroendocrine differentiation, and mucin production...
2017: Case Reports in Pathology
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