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https://www.readbyqxmd.com/read/29786512/-kidney-full-of-stones-and-an-adrenal-gland-not-quite-normal
#1
S Regnier Le Coz, D Drui
A 31-year-old patient was followed for cystinuria, justifying CT scans. In 2006, a tissue mass of 3cm of the right adrenal gland, homogeneous, measured at 3.5cm in 2007 was noted. Blood pressure was 90/61mmHg, without orthostatic hypotension. During the clinical interview, no discomfort, sweat attack, headache, or palpitation was reported by the patient. Hormonal assays did not favor a primary hyperaldosteronism, or a hypercortisolism. Adrenal androgens were normal. 24h normetanephrines urinary excretion and metanephrines to creatinine ratio were elevated...
May 18, 2018: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/29782810/chloride-and-sodium-ion-concentrations-in-saliva-and-sweat-as-a-method-to-diagnose-cystic-fibrosis
#2
Aline Cristina Gonçalves, Fernando Augusto Lima Marson, Regina Maria Holanda Mendonça, Carmen Sílvia Bertuzzo, Ilma Aparecida Paschoal, José Dirceu Ribeiro, Antônio Fernando Ribeiro, Carlos Emílio Levy
OBJECTIVE: Cystic fibrosis diagnosis is dependent on the chloride ion concentration in the sweat test (≥60mEq/mL - recognized as the gold standard indicator for cystic fibrosis diagnosis). Moreover, the salivary glands express the CFTR protein in the same manner as sweat glands. Given this context, the objective was to verify the correlation of saliva chloride concentration (SaCl) and sweat chloride concentration (SwCl), and between saliva sodium concentration (SaNa) and sweat sodium concentration (SwNa), in patients with cystic fibrosis and healthy control subjects, as a tool for cystic fibrosis diagnosis...
May 18, 2018: Jornal de Pediatria
https://www.readbyqxmd.com/read/29768354/feasibility-and-effectiveness-of-electrochemical-dermal-conductance-measurement-for-the-screening-of-diabetic-neuropathy-in-primary-care-decoding-study-dermal-electrochemical-conductance-in-diabetic-neuropathy-rationale-and-design
#3
Juan J Cabré, Teresa Mur, Bernardo Costa, Francisco Barrio, Charo López-Moya, Ramon Sagarra, Montserrat García-Barco, Jesús Vizcaíno, Immaculada Bonaventura, Nicolau Ortiz, Gemma Flores-Mateo
Diabetes mellitus is the leading cause of polyneuropathy in the Western world. Diabetic neuropathy is a frequent complication of diabetes and may have great clinical transcendence due to pain and possible ulceration of the lower extremities. It is also a relevant cause of morbidity and mortality in patients with diabetes. Although the cause of polyneuropathy in patients with diabetes is only partially known, it has been associated with chronic hyperglycemia suggesting the possible etiopathogenic implication of advanced glycosylation end products...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29765968/histopathological-evidence-of-the-efficacy-of-percutaneous-ethanol-injection-in-the-treatment-of-axillary-osmidrosis-a-promising-new-procedure
#4
Ali Asilian, Bahareh Abtahi-Naeini, Masoom Shahbazi
Axillary osmidrosis (AO) is a common disease, affecting patients psychologically and influencing their quality of life. The medical approach to AO remains controversial, ranging from conservative medical to surgical choices. We describe the successful treatment of AO and axillary hyperhidrosis (AH) using percutaneous ethanol injection (PEI) in a 30-year-old patient with AO and AH who did not respond to topical and systemic medication. We also describe the clinical efficacy of PEI by presenting our experience with histopathological evidence of necrosis of the sweat glands...
April 2018: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29754201/skin-bioprinting-a-novel-approach-for-creating-artificial-skin-from-synthetic-and-natural-building-blocks
#5
Robin Augustine
Significant progress has been made over the past few decades in the development of in vitro-engineered substitutes that mimic human skin, either as grafts for the replacement of lost skin, or for the establishment of in vitro human skin models. Tissue engineering has been developing as a novel strategy by employing the recent advances in various fields such as polymer engineering, bioengineering, stem cell research and nanomedicine. Recently, an advancement of 3D printing technology referred as bioprinting was exploited to make cell loaded scaffolds to produce constructs which are more matching with the native tissue...
May 12, 2018: Progress in Biomaterials
https://www.readbyqxmd.com/read/29745799/sweat-from-gland-to-skin-surface-production-transport-and-skin-absorption
#6
Nicola Margaret Gerrett, Katy E Griggs, Bernard Redortier, Thomas Voelcker, Narihiko Kondo, George Havenith
By combining galvanic skin conductance (GSC), stratum corneum hydration (HYD) and regional surface sweat rate (RSR) measurements at the arm, thigh, back and chest, we closely monitored the passage of sweat from gland to skin surface. Through a varied exercise-rest protocol, sweating was increased slowly and decreased in 16 male and female human participants (25.3 {plus minus} 4.7 yrs, 174.6 {plus minus} 10.1 cm, 71.3 {plus minus} 12.0 kg, 53.0 {plus minus} 6.8 ml∙kg∙min-1 ). ∆GSC and HYD increased prior to RSR, indicating pre-secretory sweat gland activity and skin hydration...
May 10, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29729587/assessing-sudomotor-impairment-in-patients-with-peripheral-neuropathy-comparison-between-electrochemical-skin-conductance-and-skin-biopsy
#7
Mathilde Duchesne, Laurence Richard, Jean-Michel Vallat, Laurent Magy
OBJECTIVE: Sudoscan provides a rapid assessment of sudomotor function based on the measurement of electrochemical skin conductance (ESC), which is thought to be proportional to small nerve fibres innervating the sweat glands. However, the relationship between ESC and small nerve fibre density on skin biopsy remains unclear. METHODS: In a retrospective single-centre study, we compared ESC measurements with autonomic sweat gland nerve fibre density (SGNFD) and somatic intraepidermal nerve fibre density (IENFD) in patients with polyneuropathy...
April 27, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29694819/prenatal-correction-of-x-linked-hypohidrotic-ectodermal-dysplasia
#8
Holm Schneider, Florian Faschingbauer, Sonia Schuepbach-Mallepell, Iris Körber, Sigrun Wohlfart, Angela Dick, Mandy Wahlbuhl, Christine Kowalczyk-Quintas, Michele Vigolo, Neil Kirby, Corinna Tannert, Oliver Rompel, Wolfgang Rascher, Matthias W Beckmann, Pascal Schneider
Genetic deficiency of ectodysplasin A (EDA) causes X-linked hypohidrotic ectodermal dysplasia (XLHED), in which the development of sweat glands is irreversibly impaired, an condition that can lead to life-threatening hyperthermia. We observed normal development of mouse fetuses with Eda mutations after they had been exposed in utero to a recombinant protein that includes the receptor-binding domain of EDA. We administered this protein intraamniotically to two affected human twins at gestational weeks 26 and 31 and to a single affected human fetus at gestational week 26; the infants, born in week 33 (twins) and week 39 (singleton), were able to sweat normally, and XLHED-related illness had not developed by 14 to 22 months of age...
April 26, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29687903/na-k-2cl-cotransporter-nkcc-physiological-function-in-nonpolarized-cells-and-transporting-epithelia
#9
Eric Delpire, Kenneth B Gagnon
Two genes encode the Na+ -K+ -2Cl- cotransporters, NKCC1 and NKCC2, that mediate the tightly coupled movement of 1Na+ , 1K+ , and 2Cl- across the plasma membrane of cells. Na+ -K+ -2Cl- cotransport is driven by the chemical gradient of the three ionic species across the membrane, two of them maintained by the action of the Na+ /K+ pump. In many cells, NKCC1 accumulates Cl- above its electrochemical potential equilibrium, thereby facilitating Cl- channel-mediated membrane depolarization. In smooth muscle cells, this depolarization facilitates the opening of voltage-sensitive Ca2+ channels, leading to Ca2+ influx, and cell contraction...
March 25, 2018: Comprehensive Physiology
https://www.readbyqxmd.com/read/29686092/environmental-selection-during-the-last-ice-age-on-the-mother-to-infant-transmission-of-vitamin-d-and-fatty-acids-through-breast-milk
#10
Leslea J Hlusko, Joshua P Carlson, George Chaplin, Scott A Elias, John F Hoffecker, Michaela Huffman, Nina G Jablonski, Tesla A Monson, Dennis H O'Rourke, Marin A Pilloud, G Richard Scott
Because of the ubiquitous adaptability of our material culture, some human populations have occupied extreme environments that intensified selection on existing genomic variation. By 32,000 years ago, people were living in Arctic Beringia, and during the Last Glacial Maximum (LGM; 28,000-18,000 y ago), they likely persisted in the Beringian refugium. Such high latitudes provide only very low levels of UV radiation, and can thereby lead to dangerously low levels of biosynthesized vitamin D. The physiological effects of vitamin D deficiency range from reduced dietary absorption of calcium to a compromised immune system and modified adipose tissue function...
April 23, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29683279/hidradenitis-suppurativa-acne-inversa-a-prospective-bacteriological-study-of-46-patients-and-review-of-the-literature
#11
Valentina Benzecry, Anna Grancini, Elena Guanziroli, Gianluca Nazzaro, Mauro Barbareschi, Angelo V Marzano, Simona Muratori, Stefano Veraldi
BACKGROUND: Hidradenitis suppurativa is a chronic inflammatory disease of the hair follicle that usually involves specific anatomic areas which are partially occluded, have a higher density of eccrine and apocrine sweat glands and a higher pH. These characteristics could promote the superinfection of certain group of bacteria. We aimed to describe the bacteria that can be isolated from hidradenitis lesions and to establish a correlation between bacteriological results and clinical data...
April 19, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29681465/botulinum-neurotoxin-a-injection-for-the-treatment-of-epiphora-with-patent-lacrymal-ducts
#12
B Girard, J-M Piaton, P Keller, T H Nguyen
HEADINGS: Retrospective longitudinal study to evaluate the efficacy of botulinum neurotoxin A (BoNT/A) therapy for epiphora with patent lacrimal ducts. BACKGROUND/PURPOSE: BoNT/A has been used since 2000 in axillary hyperhidrosis to reduce sweat secretion. Some isolated cases of hyperlacrimation or crocodile tear syndrome have been treated with BoNT/A on this basis. We report our experience in the treatment of tearing despite patent lacrimal ducts by BoNT/A injection into the lacrimal gland...
April 19, 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29677207/sweat-glucose-and-glut2-expression-in-atopic-dermatitis-implication-for-clinical-manifestation-and-treatment
#13
Emi Ono, Hiroyuki Murota, Yuki Mori, Yoshichika Yoshioka, Yuko Nomura, Takichi Munetsugu, Hiroo Yokozeki, Ichiro Katayama
Sweat includes active components and metabolites, which are needed to maintain skin homeostasis. Component changes in sweat derived from atopic dermatitis (AD) have been reported. To investigate the influence of sweat components on the pathogenesis of AD, we performed a multifaceted assessment, including nuclear magnetic resonance spectroscopy-based metabolomic analysis, and linked these features to clinical features of AD. Distinctive properties of AD sweat are the quite-variation in protein, anti-microbial peptides and glucose concentrations...
2018: PloS One
https://www.readbyqxmd.com/read/29676381/ectopic-hidradenoma-papilliferum-of-eyelid-a-rare-entity-with-diagnostic-challenge
#14
Prakriti Shukla, Anil K Malaviya
Hidradenoma papilliferum is a rare cutaneous adnexal tumour of middle aged females arising mainly in the apocrine sweat glands of perianal and genital region. Ectopic forms of this entity have been described with majority of them occurring on the head and neck region. We report a case of 16 years young male who presented with two small, well circumscribed, greyish-brown, firm, nodules on his left upper and lower eyelid. A clinical impression of basal cell carcinoma was assumed but on histopathological examination it was diagnosed as hidradenoma papilliferum of eyelid...
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29674725/droplet-bubbling-evaporatively-cools-a-blowfly
#15
Guilherme Gomes, Roland Köberle, Claudio J Von Zuben, Denis V Andrade
Terrestrial animals often use evaporative cooling to lower body temperature. Evaporation can occur from humid body surfaces or from fluids interfaced to the environment through a number of different mechanisms, such as sweating or panting. In Diptera, some flies move tidally a droplet of fluid out and then back in the buccopharyngeal cavity for a repeated number of cycles before eventually ingesting it. This is referred to as the bubbling behaviour. The droplet fluid consists of a mix of liquids from the ingested food, enzymes from the salivary glands, and antimicrobials, associated to the crop organ system, with evidence pointing to a role in liquid meal dehydration...
April 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29669433/investigation-on-aetiological-factors-in-patients-with-hyperhidrosis
#16
Ayşe Akbaş, Fadime Kilinç
BACKGROUND: Hyperhidrosis is a condition where the amount of sweat released to skin surface increases due to the over-active eccrine sweat glands. Hyperhidrosis causes considerable psychosocial distress in affected people. It affects the quality of life and leads to social anxiety disorders. AIMS: No study has been conducted in our country to investigate the epidemiological, clinical and laboratory data of patients with hyperhidrosis. In this study, we aimed to retrospectively investigate the clinical and demographic characteristics, causes of sweating and laboratory findings in patients treated for hyperhidrosis at our outpatient clinic and to compare these data with the literature data...
April 18, 2018: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/29667149/three-dimensional-reconstructed-eccrine-sweat-glands-with-vascularization-and-cholinergic-and-adrenergic-innervation
#17
Mingjun Zhang, Haihong Li, Liyun Chen, Shuhua Fang, Sitian Xie, Changmin Lin
Functional integrity of the regenerated tissues requires not only structural integrity but also vascularization and innervation. We previously demonstrated that the three-dimensional (3D) reconstructed eccrine sweat glands had similar structures as those of the native ones did, but whether the 3D reconstructed glands possessing vascularization and innervation was still unknown. In the study, Matrigel-embedded eccrine sweat gland cells were implanted under the inguinal skin. Ten weeks post-implantation, the vascularization, and innervation in the 10-week reconstructed eccrine sweat glands and native human eccrine sweat glands were detected by immunofluorescence staining...
April 17, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29660167/muse-microscopy-with-uv-surface-excitation-a-novel-approach-to-real-time-inexpensive-slide-free-dermatopathology
#18
Amir Qorbani, Farzad Fereidouni, Richard Levenson, Sana Yasmine Lahoubi, Zachary T Harmany, Austin Todd, Maxwell A Fung
Traditional histology relies on processing and physically sectioning either frozen or formalin-fixed, paraffin-embedded (FFPE) tissue into thin slices (typically 4-6 microns) prior to staining and viewing on a standard wide-field microscope. MUSE represents a novel alternative microscopy method that works with ultraviolet (UV) excitation using oblique cis-illumination which can generate high-quality images from the cut surface of fresh or fixed tissue after brief staining, with no requirement for fixation, embedding and histological sectioning of tissue specimens...
April 16, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29650525/flushing-disorders-associated-with-gastrointestinal-symptoms-part-1-neuroendocrine-tumors-mast-cell-disorders-and-hyperbasophila
#19
REVIEW
Vaibhav Rastogi, Devina Singh, Joseph J Mazza, Dennis Yang, Dipendra Parajuli, Steven H Yale
Flushing is the subjective sensation of warmth accompanied by visible cutaneous erythema occurring throughout the body with a predilection for the face, neck, pinnae, and upper trunk where the skin is thinnest and cutaneous vessels are superficially located and in greatest numbers. Flushing can be present in either a wet or dry form depending upon whether neural-mediated mechanisms are involved. Activation of the sympathetic nervous system results in wet flushing, accompanied by diaphoresis, due to concomitant stimulation of eccrine sweat glands...
April 12, 2018: Clinical Medicine & Research
https://www.readbyqxmd.com/read/29644077/unusual-presentation-of-pheochromocytoma-thirteen-years-of-anxiety-requiring-psychiatric-treatment
#20
Catherine Alguire, Jessica Chbat, Isabelle Forest, Ariane Godbout, Isabelle Bourdeau
Pheochromocytoma is a rare tumor of the adrenal gland. It often presents with the classic triad of headache, palpitations and generalized sweating. Although not described as a typical symptom of pheochromocytoma, anxiety is the fourth most common symptom reported by patients suffering of pheochromocytoma. We report the case of a 64 year old man who had severe anxiety and panic disorder as presenting symptoms of pheochromocytoma. After 13 years of psychiatric follow-up, the patient was diagnosed with malignant pheochromocytoma...
2018: Endocrinology, Diabetes & Metabolism Case Reports
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