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https://www.readbyqxmd.com/read/29760984/the-value-of-ultrahigh-resolution-oct-in-dermatology-delineating-the-dermo-epidermal-junction-capillaries-in-the-dermal-papillae-and-vellus-hairs
#1
Niels Møller Israelsen, Michael Maria, Mette Mogensen, Sophie Bojesen, Mikkel Jensen, Merete Haedersdal, Adrian Podoleanu, Ole Bang
Optical coherence tomography (OCT) imaging of the skin is gaining recognition and is increasingly applied to dermatological research. A key dermatological parameter inferred from an OCT image is the epidermal (Ep) thickness as a thickened Ep can be an indicator of a skin disease. Agreement in the literature on the signal characters of Ep and the subjacent skin layer, the dermis (D), is evident. Ambiguities of the OCT signal interpretation in the literature is however seen for the transition region between the Ep and D, which from histology is known as the dermo-epidermal junction (DEJ); a distinct junction comprised of the lower surface of a single cell layer in epidermis (the stratum basale) connected to an even thinner membrane (the basement membrane)...
May 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29742189/a-six-month-randomized-double-blind-placebo-controlled-study-evaluating-the-safety-and-efficacy-of-a-nutraceutical-supplement-for-promoting-hair-growth-in-women-with-self-perceived-thinning-hair
#2
Glynis Ablon, Sophia Kogan
Hair loss is a complex problem that generates significant concern for those who are affected. Patients seeking medical treatments have limited options, and are increasingly turning to natural therapies. A novel nutraceutical product containing a proprietary Synergen Complex® composed of standardized, active botanicals with potent anti-inflammatory, adaptogenic (anti-stress), antioxidant, and dihydrotestosterone-inhibiting properties has been developed to improve hair growth and hair quality. The objective of this 6-month randomized, double-blind, placebo-controlled study was to assess the ability of this oral supplement (Nutrafol® Women's Capsules) to strengthen and promote the growth of hair in adult women with self-perceived thinning...
May 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29740260/inverse-design-of-an-isotropic-suspended-kirchhoff-rod-theoretical-and-numerical-results-on-the-uniqueness-of-the-natural-shape
#3
Florence Bertails-Descoubes, Alexandre Derouet-Jourdan, Victor Romero, Arnaud Lazarus
Solving the equations for Kirchhoff elastic rods has been widely explored for decades in mathematics, physics and computer science, with significant applications in the modelling of thin flexible structures such as DNA, hair or climbing plants. As demonstrated in previous experimental and theoretical studies, the natural curvature plays an important role in the equilibrium shape of a Kirchhoff rod, even in the simple case where the rod is isotropic and suspended under gravity. In this paper, we investigate the reverse problem: can we characterize the natural curvature of a suspended isotropic rod, given an equilibrium curve? We prove that although there exists an infinite number of natural curvatures that are compatible with the prescribed equilibrium, they are all equivalent in the sense that they correspond to a unique natural shape for the rod...
April 2018: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29737998/metachronal-motion-of-artificial-magnetic-cilia
#4
Srinivas Hanasoge, Peter J Hesketh, Alexander Alexeev
Organisms use hair-like cilia that beat in a metachronal fashion to actively transport fluid and suspended particles. Metachronal motion emerges due to a phase difference between beating cycles of neighboring cilia and appears as traveling waves propagating along ciliary carpet. In this work, we demonstrate biomimetic artificial cilia capable of metachronal motion. The cilia are micromachined magnetic thin filaments attached at one end to a substrate and actuated by a uniform rotating magnetic field. We show that the difference in magnetic cilium length controls the phase of the beating motion...
May 8, 2018: Soft Matter
https://www.readbyqxmd.com/read/29737035/systemic-lupus-erythematosus-in-a-patient-with-noonan-syndrome-like-disorder-with-loose-anagen-hair-1-more-than-a-chance-association
#5
Tomoko Uehara, Naoki Hosogaya, Nobutake Matsuo, Kenjiro Kosaki
Systemic lupus erythematosus (SLE) has been reported among patients with RASopathy. Five patients have been reported: three with SHOC2 variants, one with a PTPN11 variant, and one with a KRAS variant. SHOC2 variant might represent a relatively common predisposing factor for SLE among the RASopathy genes. However, the clinical details were only reported for two patients, while information on the remaining patient appeared only in a tabular format with minimal clinical description. Here, we report a patient with a SHOC2 variant and SLE...
May 7, 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29706670/-in-situ-observation-of-localized-sub-mm-scale-changes-of-phosphorus-biogeochemistry-in-the-rhizosphere
#6
Andreas Kreuzeder, Jakob Santner, Vanessa Scharsching, Eva Oburger, Christoph Hoefer, Stephan Hann, Walter W Wenzel
Aims: We imaged the sub-mm distribution of labile P and pH in the rhizosphere of three plant species to localize zones and hot spots of P depletion and accumulation along individual root axes and to relate our findings to nutrient acquisition / root exudation strategies in P-limited conditions at different soil pH, and to mobilization pattern of other elements (Al, Fe, Ca, Mg, Mn) in the rhizosphere. Methods: Sub-mm distributions of labile elemental patterns were sampled using diffusive gradients in thin films and analysed using laser ablation inductively coupled plasma mass spectrometry...
2018: Plant and Soil
https://www.readbyqxmd.com/read/29706147/risky-business-is-pubic-hair-removal-by-women-associated-with-body-image-and-sexual-health
#7
Stephanie L Grossman, Rachel A Annunziato
Background: Body hair removal is a behaviour that has become normative among women in Westernised cultures, and is presented by the media as the feminine ideal, despite being painful and a potential cause of infection. Of concern, removal may be part of a more global pattern of appearance dissatisfaction and risky sexual behaviour. The aim of the present study was to examine the relationships among pubic hair removal, body image and sexual health indicators. Methods: Women (n=264; Mage=33.82, s.d.=11.13, range=18-66) completed self-report questionnaires assessing these constructs, including an assessment of body hair removal practices...
April 30, 2018: Sexual Health
https://www.readbyqxmd.com/read/29704126/dermal-white-adipose-tissue-undergoes-major-morphological-changes-during-the-spontaneous-and-induced-murine-hair-follicle-cycling-a-reappraisal
#8
April R Foster, Carina Nicu, Marlon R Schneider, Eleanor Hinde, Ralf Paus
In murine skin, dermal white adipose tissue (DWAT) undergoes major changes in thickness in synchrony with the hair cycle (HC); however, the underlying mechanisms remain unclear. We sought to elucidate whether increased DWAT thickness during anagen is mediated by adipocyte hypertrophy or adipogenesis, and whether lipolysis or apoptosis can explain the decreased DWAT thickness during catagen. In addition, we compared HC-associated DWAT changes between spontaneous and depilation-induced hair follicle (HF) cycling to distinguish between spontaneous and HF trauma-induced events...
April 27, 2018: Archives of Dermatological Research
https://www.readbyqxmd.com/read/29658875/new-aspects-of-the-structure-of-human-scalp-hair-ii-tubular-structure-and-material-flow-property-of-the-medulla
#9
Asao Yamauchi, Kiyoshi Yamauchi
Asian scalp hair fibers were made thin by treatment with papain or sliced along the longitudinal axis or randomly cut by mechanical means. Optical microscopic observations of the resulting specimens indicated that (i) the medulla (M) consisted of two types of the M-surrounding cells which were linearly linked one another to form a tubular structure running through the fiber and (ii) the drum-shaped vesicles containing small proteinous granules were neatly or sparsely stored within the tube. On the other hand, H+ and OH- ions were able to move spontaneously from one end to another through the M tube...
January 2018: Journal of Cosmetic Science
https://www.readbyqxmd.com/read/29606820/localized-telogen-effluvium-following-hair-transplantation
#10
Seung-Hee Loh, Bark-Lynn Lew, Woo-Young Sim
Telogen effluvium is categorized in nonscarring alopecia, which shows scalp hair thinning and shedding diffusely resulting from inducing factors such as physiological stressful events and several acute or chronic diseases. It usually appears in female patients following parturition, as well as after febrile disease, major surgery, emotional stress, abrupt diet, chronic illness, or the taking of certain medication pills. Two patients who both recalled an operational history of hair transplantation visited our department with their frontal and both temporal hair loss...
April 2018: Annals of Dermatology
https://www.readbyqxmd.com/read/29499347/is-oval-window-transport-a-royal-gate-for-nanoparticle-delivery-to-vestibule-in-the-inner-ear
#11
Shan Ding, Shibao Xie, Weiquan Chen, Lu Wen, Junyi Wang, Fan Yang, Gang Chen
Drug delivery to the inner ear by nanomedicine strategies has emerged as an effective therapeutic approach for the management of inner ear diseases including hearing and balance disorders. It is well accepted that substance enters the perilymph from the middle ear through the round window membrane (RWM), but the passage through the oval window (OW) has long been neglected. Up to now, researchers still know little about the pathway via which nanoparticles (NPs) enter the inner ear or how they reach the inner ear following local applications...
February 28, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29481480/in-search-of-a-murine-model-of-radiation-induced-periprosthetic-capsular-fibrosis
#12
Alexandra J Lin, Sarah J Karinja, Jaime L Bernstein, Julia Jin, Yoshiko Toyoda, Andrew J Miller, Pat B Zanzonico, Jason A Spector
INTRODUCTION: Capsular contracture after breast reconstruction is a morbid complication, occurring in 30.0% to 47.5% of patients undergoing postoperative radiotherapy. Although it is well known that radiation increases rate of capsular contracture, there are few well-established animal models that faithfully replicate standard-of-care clinical practice, that is, prosthesis placement at the time of mastectomy followed by delayed radiotherapy. To better recapitulate current clinical practice, we developed a murine model in which the implant sites were irradiated 10 days postoperatively, rather than at time of surgery...
April 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29464847/clinical-efficacy-of-oral-administration-of-finasteride-at-a-dose-of-2-5-mg-day-in-women-with-female-pattern-hair-loss
#13
Yong-Yon Won, Bark-Lynn Lew, Woo-Young Sim
Female pattern hair loss (FPHL) presents with diffuse thinning over the mid-frontal scalp, for which various treatment modalities have been tried. Although currently, oral 5 α-reductase inhibitors such as finasteride are being used, their clinical efficacy remains controversial. We retrospectively investigated 544 premenopausal or postmenopausal patients with FPHL who were prescribed finasteride at a dose of 2.5 mg/day. Our study excluded patients with a follow-up period of < 3 months and patients who were prescribed other FPHL treatment modalities including topical minoxidil...
March 2018: Dermatologic Therapy
https://www.readbyqxmd.com/read/29417084/comparing-the-efficacy-of-low-dose-and-conventional-dose-of-oral-isotretinoin-in-treatment-of-moderate-and-severe-acne-vulgaris
#14
Gita Faghihi, Fatemeh Mokhtari, Nasrin Motamedi Fard, Narges Motamedi, Sayed Mohsen Hosseini
Objective: This study was conducted to compare the effect of low-dose isotretinoin with its conventional dose in patients with moderate and severe acne. Methods: This was a clinical trial conducted on 60 male and female patients with moderate and severe acne vulgaris. The patients were divided into two treatment groups: 0.5 mg/kg/day isotretinoin capsule and low-dose isotretinoin capsule (0.25 mg/kg/day). Patients in both groups received 6-month treatment. At the end of the 6th month and 12th month (6 months after the end of the treatment), they were examined again, and their improvement was determined and compared...
October 2017: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/29412435/acrodermatitis-enteropathica-clinical-manifestations-and-pediatric-diagnosis
#15
Ieda Regina Lopes Del Ciampo, Regina Sawamura, Luiz Antonio Del Ciampo, Maria Inez Machado Fernandes
OBJECTIVE: To report a case of acrodermatitis enteropathica, a rare disease with autosomal recessive inheritance. CASE DESCRIPTION: An 11-month-old boy was presenting symmetrical erythematous and yellowish-brownish crusted lesions on his face, feet, hands and knees, intermittent diarrhea, fever, and recurrent infections since the age of six months. He was thin and had scarce hair on the scalp. The serum zinc level was measured and a reduced level of 27.0 mcg/dL (normal range: 50...
January 15, 2018: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
https://www.readbyqxmd.com/read/29401444/the-competition-between-the-noise-and-shear-motion-sensitivity-of-cochlear-inner-hair-cell-stereocilia
#16
Aritra Sasmal, Karl Grosh
Acoustical excitation of the organ of Corti induces radial fluid flow in the subtectorial space (STS) that excites the hair bundles (HBs) of the sensory inner hair cell of the mammalian cochlea. The inner hair cell HBs are bathed in endolymphatic fluid filling a thin gap in the STS between the tectorial membrane and the reticular lamina. According to the fluctuation dissipation theorem, the fluid viscosity gives rise to mechanical fluctuations that are transduced into current noise. Conversely, the stochastic fluctuations of the mechanically gated channels of the HBs also induce dissipation...
January 23, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29319595/pythium-keratitis-leading-to-fatal-cavernous-sinus-thrombophlebitis
#17
Anubha Rathi, Arunaloke Chakrabarti, Tushar Agarwal, Neelam Pushker, Mukesh Patil, Hemant Kamble, Jeewan S Titiyal, Rishi Mohan, Seema Kashyap, Sanjay Sharma, Seema Sen, Gita Satpathy, Namrata Sharma
PURPOSE: To report a case of Pythium insidiosum keratitis leading to fatal cavernous sinus thrombophlebitis. METHODS: Case report. RESULTS: A 70-year-old man presented with excruciating pain, redness, and diminution of vision in his left eye for 2 weeks after washing his hair with tap water. A total corneal ulcer with surrounding infiltrates and associated corneal thinning was present. Corneal scraping revealed the presence of Gram-positive cocci...
April 2018: Cornea
https://www.readbyqxmd.com/read/29247174/genomic-footprints-of-dryland-stress-adaptation-in-egyptian-fat-tail-sheep-and-their-divergence-from-east-african-and-western-asia-cohorts
#18
Joram M Mwacharo, Eui-Soo Kim, Ahmed R Elbeltagy, Adel M Aboul-Naga, Barbara A Rischkowsky, Max F Rothschild
African indigenous sheep are classified as fat-tail, thin-tail and fat-rump hair sheep. The fat-tail are well adapted to dryland environments, but little is known on their genome profiles. We analyzed patterns of genomic variation by genotyping, with the Ovine SNP50K microarray, 394 individuals from five populations of fat-tail sheep from a desert environment in Egypt. Comparative inferences with other East African and western Asia fat-tail and European sheep, reveal at least two phylogeographically distinct genepools of fat-tail sheep in Africa that differ from the European genepool, suggesting separate evolutionary and breeding history...
December 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29230660/dietary-intake-of-soy-and-cruciferous-vegetables-and-treatment-related-symptoms-in-chinese-american-and-non-hispanic-white-breast-cancer-survivors
#19
Sarah J O Nomura, Yi-Ting Hwang, Scarlett Lin Gomez, Teresa T Fung, Shu-Lan Yeh, Chiranjeev Dash, Laura Allen, Serena Philips, Leena Hilakivi-Clarke, Yun-Ling Zheng, Judy Huei-Yu Wang
PURPOSE: This project was undertaken to examine the association between dietary intake of soy or cruciferous vegetables and breast cancer treatment-related symptoms among Chinese-American (CA) and Non-Hispanic White (NHW) breast cancer survivors. METHODS: This cross-sectional study included 192 CA and 173 NHW female breast cancer survivors (stages 0-III, diagnosed between 2006 and 2012) recruited from two California cancer registries, who had completed primary treatment...
April 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29217084/oral-phenytoin-protects-against-experimental-cyclophosphamide-chemotherapy-induced-hair-loss
#20
A Y Onaolapo, A A Adebayo, O J Onaolapo
In the current study, effects of oral phenytoin on hair growth in cyclophosphamide-treated rats were assessed with the goal of evaluating the ability of phenytoin to suppress chemotherapy-induced hair loss. Thirty-six rats were randomly assigned to six groups (1k6) of six each (n=6). In all groups, anagen was induced in flank skin of rats by depilation. On day 9 (anagen VI), rats were injected once with either distilled water (groups 1-3) or cyclophoshamide (groups 4-6). From day 10, rats in group 1 and 4 received oral vehicle (distilled water), groups 2 and 5 received oral phenytoin (50mg/kg), while groups 3 and 6 also received oral phenytoin (100mg/kg)...
March 2018: Pathophysiology: the Official Journal of the International Society for Pathophysiology
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