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https://www.readbyqxmd.com/read/28812164/efficacy-of-fractional-lasers-in-treating-alopecia-a-literature-review
#1
Marina Perper, Adam S Aldahan, Rachel A Fayne, Christopher P Emerson, Keyvan Nouri
Hair loss stemming from different types of alopecia, such as androgenic alopecia and alopecia areata, negatively affects over half the population and, in many circumstances, causes serious psychosocial distress. Current treatment options for alopecia, such as minoxidil, anthralin, and intralesional corticosteroids, vary efficacy and side effect profiles. It is known that low-level laser/light therapies (LLLT), or photobiomodulations, such as the US FDA-cleared HairMax Lasercomb®, He-Ne laser, and excimer laser, are relatively affordable, user-friendly, safe, and effective forms of treatment for hair loss...
August 16, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28811115/recurrence-of-cutaneous-coccidioidomycosis-6-years-after-valley-fever-a-case-presentation-and-literature-review
#2
Rana Shahab, Nasir K Amra, Rola Rabah, Justin Saunar, Joan Soriano, Jaffar A Al-Tawfiq
Coccidioidomycosis is usually acquired by inhalation of spores of Coccidioides immitis and C. posadasii. The disease ranges from a self-limited acute pneumonia (Valley Fever) to a disseminated disease. We present a 44-year-old healthy male who had patchy hair loss of several months duration resembling discoid lupus. He developed a firm non-scaly red plaque on the right forehead. Initial biopsy showed spongiotic dermatitis, and he was treated with systemic steroids. He then developed forehead and periorbital cellulitis and was treated with systemic antibiotics...
July 8, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28810552/anti-cxcl4-monoclonal-antibody-accelerates-telogen-to-anagen-transition-and-attenuates-apoptosis-of-the-hair-follicle-in-mice
#3
Wen Guan, Xiaolan Yu, Jingjing Li, Qing Deng, Yang Zhang, Jing Gao, Peng Xia, Yunsheng Yuan, Jin Gao, Liang Zhou, Wei Han, Yan Yu
Although hair loss or alopecia is a common disease, its exact mechanisms are not yet well understood. The present study investigated the hypothesis that the homeostatic regulation of genes during hair regeneration may participate in hair loss, based on the cyclicity of hair growth. A cluster of such genes was identified by an expression gene-array from the dorsal skin in a depilated mouse model, and CXCL4 was identified as a significantly regulated gene during the hair regeneration process. To elucidate the function of CXCL4 in hair growth, CXCL4 activity was blocked by the administration of an anti-CXCL4 monoclonal antibody (mAb)...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28806331/cochlear-implants-meet-regenerative-biology-state-of-the-science-and-future-research-directions
#4
Alain Dabdoub, Koji Nishimura
: The cochlear implant, the first device to restore a human sense, is an electronic substitute for lost mechanosensory hair cells. It has been successful at providing hearing to people with severe to profound hearing loss and as of 2012, an estimated 324,000 patients worldwide have received cochlear implants. Users of cochlear implants however, suffer from difficulties in processing complex sounds such as music and in discriminating sounds in noisy environments. Recent advances in regenerative biology and medicine are opening new avenues for enhancing the efficacy of cochlear implants by improving the neural interface in the future and offer the possibility of an entirely biological solution for hearing loss in the long term...
September 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28803863/epidermal-e-cadherin-dependent-%C3%AE-catenin-pathway-is-phytochemical-inducible-and-accelerates-anagen-hair-cycling
#5
Noha S Ahmed, Subhadip Ghatak, Mohamed S El Masry, Surya C Gnyawali, Sashwati Roy, Mohamed Amer, Helen Everts, Chandan K Sen, Savita Khanna
Unlike the epidermis, which regenerates continually, hair follicles anchored in the subcutis periodically regenerate by spontaneous repetitive cycles of growth (anagen), degeneration (catagen), and rest (telogen). The loss of hair follicles in response to injuries or pathologies such as alopecia endangers certain inherent functions of the skin. Thus, it is of interest to understand mechanisms underlying follicular regeneration in adults. In this work, a phytochemical rich in the natural vitamin E tocotrienol (TRF) served as a productive tool to unveil a novel epidermal pathway of hair follicular regeneration...
July 20, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28802209/commentary-on-current-changes-of-the-soht-2016-consensus-on-alcohol-markers-in-hair-and-further-background-information
#6
Fritz Pragst, Silke Suesse, Alberto Salomone, Marco Vincenti, Vincent Cirimele, Jayne Hazon, Lolita Tsanaclis, Robert Kingston, Frank Sporkert, Markus R Baumgartner
The consensus on alcohol markers in hair was revised for the fourth time by an expert group of the Society of Hair Testing based on current state of research. This revision was adopted by the members of the Society during the business meeting in Brisbane on August 29th 2016. For both markers, ethyl glucuronide (EtG) and fatty acid ethyl esters (FAEEs), two cut-off values for discrimination between teetotalers or occasional low amount consumption and moderate alcohol drinking (low cut-off), and between non-excessive (abstinence up to moderate alcohol intake) and chronic excessive drinking (high cut-off value) were critically examined...
July 27, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28796092/oral-administration-of-clinical-stage-drug-candidate-sens-401-effectively-reduces-cisplatin-induced-hearing-loss-in-rats
#7
Mathieu Petremann, Christophe Tran Van Ba, Audrey Broussy, Charlotte Romanet, Jonas Dyhrfjeld-Johnsen
HYPOTHESIS: SENS-401, an oral clinical-stage drug, may reduce cisplatin-induced hearing loss and cochlear damage in an in vivo model. BACKGROUND: Cisplatin is commonly associated with hearing loss, causing significant learning and behavioral difficulties in the pediatric cancer population, and for which there are currently no clinical solutions. SENS-401 has previously been shown to improve acoustic trauma-induced hearing loss in vivo. METHODS: The effect of SENS-401 (R-azasetron besylate) on cisplatin IC50 values was evaluated in a panel of cisplatin-sensitive cell lines (NIH:OVCAR-3, SK-N-AS, NCI-H460, FaDu)...
August 8, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28792932/structural-insights-into-ligand-recognition-by-the-lysophosphatidic-acid-receptor-lpa6
#8
Reiya Taniguchi, Asuka Inoue, Misa Sayama, Akiharu Uwamizu, Keitaro Yamashita, Kunio Hirata, Masahito Yoshida, Yoshiki Tanaka, Hideaki E Kato, Yoshiko Nakada-Nakura, Yuko Otani, Tomohiro Nishizawa, Takayuki Doi, Tomohiko Ohwada, Ryuichiro Ishitani, Junken Aoki, Osamu Nureki
Lysophosphatidic acid (LPA) is a bioactive lipid composed of a phosphate group, a glycerol backbone, and a single acyl chain that varies in length and saturation. LPA activates six class A G-protein-coupled receptors to provoke various cellular reactions. Because LPA signalling has been implicated in cancer and fibrosis, the LPA receptors are regarded as promising drug targets. The six LPA receptors are subdivided into the endothelial differentiation gene (EDG) family (LPA1-LPA3) and the phylogenetically distant non-EDG family (LPA4-LPA6)...
August 9, 2017: Nature
https://www.readbyqxmd.com/read/28791288/a-practical-approach-to-the-diagnosis-and-management-of-hair-loss-in-children-and-adolescents
#9
REVIEW
Liwen Xu, Kevin X Liu, Maryanne M Senna
Hair loss or alopecia is a common and distressing clinical complaint in the primary care setting and can arise from heterogeneous etiologies. In the pediatric population, hair loss often presents with patterns that are different from that of their adult counterparts. Given the psychosocial complications that may arise from pediatric alopecia, prompt diagnosis and management is particularly important. Common causes of alopecia in children and adolescents include alopecia areata, tinea capitis, androgenetic alopecia, traction alopecia, trichotillomania, hair cycle disturbances, and congenital alopecia conditions...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28783774/progressive-hair-loss
#10
David V Power, Max Disse, Maria Hordinsky
A 66-year-old white woman presented to her primary care clinic with concerns about hair loss, which began 2 years ago. Recently, she had noticed some "bumps" on her cheeks, as well.
August 2017: Journal of Family Practice
https://www.readbyqxmd.com/read/28777458/increased-expression-of-pd-l1-and-pd-l2-in-dermal-fibroblasts-from-alopecia-areata-mice
#11
Yunyuan Li, Ruhi T Kilani, Mohammadreza Pakyari, Gigi Leung, Layla Nabai, Aziz Ghahary
Alopecia areata (AA) is a common autoimmune disorder affecting millions of people worldwide, which manifests as a sudden, non-scarring hair loss. The expression of a pro-inflammatory cytokine, interferon-gamma (INF-γ), has been well established to be involved in the development of AA. As IFN-γ and other cytokines are also known to up-regulate programmed cell death ligand 1 and 2 (PD-L1 and PD-L2), which both negatively control immune responses, we asked whether or not a high number of infiltrated T cells, seen in AA lesions, can modulate the expression of PD-L1 and PD-L2 in skin cells...
August 4, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28777326/upregulation-of-melanogenesis-and-tyrosinase-activity-potential-agents-for-vitiligo
#12
REVIEW
Chao Niu, Haji A Aisa
Melanin, the compound primarily responsible in humans for hair, eye and skin pigmentation, is produced by melanocytes through a complicated process called melanogenesis that is catalyzed by tyrosinase and other tyrosinase-related proteins. The abnormal loss of melanin causes dermatological problems such as vitiligo. Hence the regulation of melanogenesis and tyrosinase activity is very important for treating hypopigmentary disorders. Many melanogenesis stimulators have been discovered during the past decade...
August 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28776490/global-distributions-and-strain-diversity-of-avian-infectious-bronchitis-virus-a-review
#13
Faruku Bande, Siti Suri Arshad, Abdul Rahman Omar, Mohd Hair-Bejo, Aliyu Mahmuda, Venugopal Nair
The poultry industry faces challenge amidst global food security crisis. Infectious bronchitis is one of the most important viral infections that cause huge economic loss to the poultry industry worldwide. The causative agent, infectious bronchitis virus (IBV) is an RNA virus with great ability for mutation and recombination; thus, capable of generating new virus strains that are difficult to control. There are many IBV strains found worldwide, including the Massachusetts, 4/91, D274, and QX-like strains that can be grouped under the classic or variant serotypes...
June 2017: Animal Health Research Reviews
https://www.readbyqxmd.com/read/28765044/hairless-controls-hair-fate-decision-via-wnt-%C3%AE-catenin-signaling
#14
Kuicheng Zhu, Cunshuan Xu, Mengduan Liu, Jintao Zhang
The hairless (Hr) gene plays a central role in the hair cycle, considering that mutations in the gene result in hair loss with the exception of a few vibrissae after the first hair growth cycle in both mice and humans. This study examinedthe uncommon phenotype and using microarray analyses and functional studies, we found that β-catenin was mediated by Hr. Progenitor keratinocytes from the bulge region differentiate into both epidermis and sebaceous glands, and fail to adopt the hair keratinocytes fate in the mutant scalp, due to the decreased Wnt/β-catenin signaling in the absence of the hairless protein...
July 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28763345/risk-of-hair-loss-with-different-antidepressants-a-comparative-retrospective-cohort-study
#15
Mahyar Etminan, Mohit Sodhi, Ric M Procyshyn, Michael Guo, Bruce C Carleton
The aim of this study was to quantify the risk of hair loss with different antidepressants. A retrospective cohort study design using a large health claims database in the USA from 2006 to 2014 was utilized. A cohort of new user and mutually exclusive users of fluoxetine, fluvoxamine, sertraline, citalopram, escitalopram, paroxetine, duloxetine, venlafaxine, desvenlafaxine, and bupropion were followed to the first diagnosis of alopecia. The cohort was comprised of 1 025 140 new users of fluoxetine, fluvoxamine, sertraline, citalopram, escitalopram, paroxetine, duloxetine, venlafaxine, desvenlafaxine, and bupropion, with sertraline the most commonly prescribed (N=190 227) and fluvoxamine (N=3010) the least prescribed...
July 31, 2017: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28761264/a-case-report-of-verruca-vulgaris-on-basis-of-alopecia-areata-successfully-treated-with-diphenylcyclopropenone
#16
Tugba Kevser Uzuncakmak, Mahmut Can Koska, Ayşe Serap Karadağ, Necmettin Akdeniz
Alopecia areata is an autoimmune skin disease which is usually characterized by patchy hair loss in effected regions. Diagnosis usually based on clinical findings and main treatment options include topical, intralesional, systemic corticosteroids, and topical immunotherapy. Verruca vulgaris is an infectious disease caused by human papillomavirus which is usually characterized by well-marginated hyperkeratotic papules or plaques. There are several treatment modalities such as physical and chemical destruction and topical immunotherapy...
January 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28761261/presence-of-mast-cells-and-mast-cell-degranulation-in-scalp-biopsies-of-telogen-effluvium
#17
Shane A Grace, Angela M Sutton, Nina Abraham, Eric S Armbrecht, Claudia I Vidal
BACKGROUND: Telogen effluvium (TE) is a type of acquired, diffuse alopecia that occurs due to an abnormal shift of scalp hair follicles from anagen to telogen, leading to premature shedding of hair. Previous studies have suggested the existence of a neuroimmunologic "brain-hair follicle" axis, in which mast cells have been implicated as an important link between the nervous system and immunologic system. OBJECTIVE: The current study sought to investigate the role of mast cell presence and mast cell degranulation in the pathogenesis of TE...
January 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28756190/mir-34a-bcl-2-signaling-pathway-contributes-to-age-related-hearing-loss-by-modulating-hair-cell-apoptosis
#18
Qiuhong Huang, Yiqing Zheng, Yongkang Ou, Hao Xiong, Haidi Yang, Zhigang Zhang, Suijun Chen, Yongyi Ye
MicroRNAs, such as miR-34, have been reported to influence age-related diseases. In this study, we explored the role of the miR-34a/Bcl-2 signaling pathway in age-related hearing loss (AHL). Using an AHL mouse model (C57BL/6), we found that the expression of miR-34a in the cochlea increased with age, whereas expression of Bcl-2 decreased. Increasing the amount of a miR-34a mimetic in a mouse auditory cell line (HEI-OC1) inhibited Bcl-2, leading to enhanced apoptosis; in contrast, miR-34a inhibition produced the opposite effect...
July 26, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28751315/scyl2-genes-are-involved-in-clathrin-mediated-vesicle-trafficking-and-essential-for-plant-growth
#19
Ji-Yul Jung, Dong Wook Lee, Stephen Beungtae Ryu, Inhwan Hwang, Daniel P Schachtman
Protein transport between organelles is an essential process in all eukaryotic cells and is mediated by the regulation of processes such as vesicle formation, transport, docking and fusion. In animals, SCY1-Like2 (SCYL2) binds to clathrin and has been shown to play roles in trans-Golgi network (TGN)-mediated clathrin coated vesicle (CCV) trafficking. Here we demonstrate that SCYL2A and SCYL2B, which are Arabidopsis homologs of animal SCYL2, are vital for plant cell growth and root hair development. Studies of the SCYL2 isoforms using multiple single or double loss of function alleles show that SCYL2B is involved in root hair development and that SCYL2A and SCYL2B are essential for plant growth and development and act redundantly in those processes...
July 27, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28751305/dlx3b-4b-is-required-for-early-born-but-not-later-forming-sensory-hair-cells-during-zebrafish-inner-ear-development
#20
Simone Schwarzer, Sandra Spieß, Michael Brand, Stefan Hans
Morpholino-mediated knockdown has shown that the homeodomain transcription factors Dlx3b and Dlx4b are essential for proper induction of the otic-epibranchial progenitor domain (OEPD) as well as subsequent formation of sensory hair cells in the developing zebrafish inner ear. However, increasing use of reverse genetic approaches has revealed poor correlation between morpholino-induced and mutant phenotypes. Using CRISPR/Cas9-mediated mutagenesis, we generated a defined deletion eliminating the entire open reading frames of dlx3b and dlx4b (dlx3b/4b) and investigated a potential phenotypic difference between mutants and morpholino-mediated knockdown...
July 27, 2017: Biology Open
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