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https://www.readbyqxmd.com/read/28340212/accelerated-senescence-in-skin-in-a-murine-model-of-radiation-induced-multi-organ-injury
#1
Elizabeth A McCart, Rajesh L Thangapazham, Eric D Lombardini, Steven R Mog, Ronald Allan M Panganiban, Kelley M Dickson, Rihab A Mansur, Vitaly Nagy, Sung-Yop Kim, Reed Selwyn, Michael R Landauer, Thomas N Darling, Regina M Day
Accidental high-dose radiation exposures can lead to multi-organ injuries, including radiation dermatitis. The types of cellular damage leading to radiation dermatitis are not completely understood. To identify the cellular mechanisms that underlie radiation-induced skin injury in vivo, we evaluated the time-course of cellular effects of radiation (14, 16 or 17 Gy X-rays; 0.5 Gy/min) in the skin of C57BL/6 mice. Irradiation of 14 Gy induced mild inflammation, observed histologically, but no visible hair loss or erythema...
March 18, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28340062/exogenously-applied-24-epibrassinolide-ebl-ameliorates-detrimental-effects-of-salinity-by-reducing-k-efflux-via-depolarization-activated-k-channels
#2
Nazila Azhar, Nana Su, Lana Shabala, Sergey Shabala
This study has investigated mechanisms conferring beneficial effects of exogenous application of 24-epibrassinolides (EBL) on plant growth and performance under saline conditions. Barley seedlings treated with 0.25 mg l-1 EBL showed significant improvements in root hair length, shoot length, shoot fresh weight and relative water content when grown in the presence of 150 mM NaCl in the growth medium. In addition, EBL treatment significantly decreased the Na+ content in both shoots (by approximately 50%) and roots...
March 2, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28338078/the-transmembrane-serine-protease-hat-like-4-is-important-for-epidermal-barrier-function-to-prevent-body-fluid-loss
#3
Zhiwei Zhang, Yae Hu, Ruhong Yan, Liang Dong, Yizhi Jiang, Zhichao Zhou, Meng Liu, Tiantian Zhou, Ningzheng Dong, Qingyu Wu
Membrane-bound proteases are essential for epidermal integrity. Human airway trypsin-like protease 4 (HAT-L4) is a type II transmembrane serine protease. Currently, its biochemical property, cellular distribution and physiological function remain unknown. Here we examined HAT-L4 expression and function in vitro and in vivo. In Western analysis, HAT-L4 expressed in transfected CHO cells appeared as a 48-kDa protein. Flow cytometry confirmed HAT-L4 expression on the cell surface with the expected membrane topology...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332931/unitary-ototoxic-gentamicin-exposure-may-not-disrupt-the-function-of-cochlear-outer-hair-cells-in-mice
#4
Ning Zhao, XuHui Tai, LiJie Zhai, Lin Shi, DaiShi Chen, Bo Yang, Fei Ji, Kun Hou, ShiMing Yang, ShuSheng Gong, Ke Liu
BACKGROUND: Previous study showed that mild ototoxic exposure could induce a reversible hearing impairment, and the loss and secondary incomplete recovery of cochlear ribbon synapses could be responsible for the hearing loss. However, it remains unclear whether cochlear outer hair cells' (OHCs) functions are affected. OBJECTIVE: To verify whether the function of OHCs are also affected significantly after the ototoxic exposure. METHODS: Mice were injected intraperitoneally with 100 mg/kg concentration of gentamicin daily for 14 days...
March 23, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28329619/bitemporal-hair-loss-related-to-traction-alopecia
#5
Oscar Muñoz Moreno-Arrones, Sergio Vañó-Galván
We present a 24-year-old woman that had received a diagnosis of alopecia areata in the past and was treated with topical 19 corticosteroids with little improvement. Instead, the patient exhibited bitemporal alopecia of one year of evolution related to 20 traction alopecia. Traction alopecia is characterized by localized hair loss related to persistent excessive traction. Although it is 21 initially a reversible condition, if this excessive traction is not removed permanent alopecia may develop.
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329519/tnf-inhibitor-induced-alopecia-an-unusual-form-of-psoriasiform-alopecia-that-breaks-the-renb%C3%A3-k-mold
#6
Lauren N Craddock, Matthew Cooley, Justin O Endo, B Jack Longley, Freddy Caldera
TNF-α-inhibitors are known to induce skin adverseeffects including psoriasis and alopecia areata. Here, wedescribe a unique pattern of hair loss that has psoriaticand alopecia areata-like features. Diagnosis requiresclinical-pathologic correlation and is supportedby increased catagen/telogen hairs, psoriasiformepidermal hyperplasia, perifollicular lymphocyticinfiltrate, and the presence of eosinophils and plasmacells. Although there are no treatment consensusguidelines, management options include stoppingtherapy, switching to a different TNF-α inhibitor orustekinumab (in severe cases), or continuing TNF-αinhibitor therapy with addition of topical, intralesional,or systemic immunosuppressants...
March 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328701/commentary-on-the-effect-of-plasma-rich-in-growth-factors-on-pattern-hair-loss
#7
Marc R Avram
No abstract text is available yet for this article.
March 21, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28324267/chemotherapy-induced-irreversible-alopecia-in-early-breast-cancer-patients
#8
Gun Min Kim, Sanghwa Kim, Hyung Seok Park, Jee Ye Kim, Sanggen Nam, Seho Park, Seung Il Kim, DoYoung Kim, Joohyuk Sohn
PURPOSE: The purpose of this work is to determine the prevalence of chemotherapy-induced irreversible alopecia (CIIA), which is defined as an alopecia that exists at least 6 months after completion of chemotherapy and factors affecting CIIA in early breast cancer patients. METHODS: We performed a cross-sectional study. We retrospectively identified breast cancer patients who had received AC (Adriamycin, Cyclophosphamide) or AC-T (AC followed by Taxane) as neoadjuvant or adjuvant chemotherapy...
March 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28321536/effect-of-sinapic-acid-on-hair-growth-promoting-in-human-hair-follicle-dermal-papilla-cells-via-akt-activation
#9
Hyunju Woo, Seungjun Lee, Seungbeom Kim, Deokhoon Park, Eunsun Jung
Hair loss known as alopecia is caused by abnormal hair follicle cycling including shortening of the anagen (growth) phase and changing of hair follicle morphology with miniaturization. In accordance with the life extension, the quality of life is considered to be a most important thing. The yearning for healthy and beautiful hair and low self esteem due to hair loss had negative influence on the quality of life with psychosocial maladjustment. The objective of this research was to identify new compound that can be used as a drug to promote hair growth...
March 20, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28316840/hearing-loss-reestablish-the-neural-plasticity-in-regenerated-spiral-ganglion-neurons-and-sensory-hair-cells
#10
EDITORIAL
Renjie Chai, Geng-Lin Li, Jian Wang, Jing Zou
No abstract text is available yet for this article.
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28314816/characterization-of-a-human-point-mutation-of-vglut3-p-a211v-in-the-rodent-brain-suggests-a-non-uniform-distribution-of-the-transporter-in-synaptic-vesicles
#11
Lauriane Ramet, Johannes Zimmermann, Tiphaine Bersot, Odile Poirel, Stéphanie De Gois, Katlin Silm, Diana Yae Sakae, Nina Mansouri-Guilani, Marie-Josée Bourque, Louis-Eric Trudeau, Nicolas Pietrancosta, Stéphanie Daumas, Véronique Bernard, Christian Rosenmund, Salah El Mestikawy
The atypical vesicular glutamate transporter type 3 (VGLUT3) is expressed by sub-populations of neurons using acetylcholine, GABA or serotonin as neurotransmitters. In addition, VGLUT3 is expressed in the inner hair cells of the auditory system. A mutation (p.A211V) in the gene that encodes VGLUT3 is responsible for progressive deafness in two unrelated families. In this study, we investigated the consequences of the p.A211V mutation in cell cultures and in the central nervous system (CNS) of a mutant mouse...
March 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28314794/the-microtubule-associated-protein-map18-affects-rop2-gtpase-activity-during-root-hair-growth
#12
Erfang Kang, Mingzhi Zheng, Yan Zhang, Ming Yuan, Shaul Yalovsky, Lei Zhu, Ying Fu
Establishment and maintenance of the polar site are important for root hair tip growth. We previously reported that Arabidopsis (Arabidopsis thaliana) MICROTUBULE-ASSOCIATED PROTEIN18 (MAP18) functions in controlling the direction of pollen tube growth and root hair elongation. Additionally, the Rop GTPase ROP2 was reported as a positive regulator of both root hair initiation and tip growth in Arabidopsis. Both loss-of-function of ROP2 or knock-down of MAP18 leads to a decrease in root hair length, whereas overexpression of either MAP18 or ROP2 causes multiple tips or a branching hair phenotype...
March 17, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28300347/assessing-finasteride-associated-sexual-dysfunction-using-the-faers-database
#13
Aditya K Gupta, Jessie Carviel, Melissa A MacLeod, Neil Shear
BACKGROUND: Post-marketing reports suggest that finasteride causes sexual dysfunction despite a low incidence reported in clinical trials. Therefore, the extent of risk remains unknown. OBJECTIVE: To determine whether the risk of sexual dysfunction is higher among individuals treated with finasteride compared to a baseline risk for all other drugs using the U.S. Food and Drug Administration Adverse Event Reporting System (FAERS) database. METHODS: A case by non-case disproportionality approach was used whereby a Reporting Odds Ratio (ROR) with 95% confidence interval (CI) was calculated...
March 16, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28300084/alopecia-areata
#14
REVIEW
C Herbert Pratt, Lloyd E King, Andrew G Messenger, Angela M Christiano, John P Sundberg
Alopecia areata is an autoimmune disorder characterized by transient, non-scarring hair loss and preservation of the hair follicle. Hair loss can take many forms ranging from loss in well-defined patches to diffuse or total hair loss, which can affect all hair-bearing sites. Patchy alopecia areata affecting the scalp is the most common type. Alopecia areata affects nearly 2% of the general population at some point during their lifetime. Skin biopsies of affected skin show a lymphocytic infiltrate in and around the bulb or the lower part of the hair follicle in the anagen (hair growth) phase...
March 16, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28299655/runx-family-genes-in-tissue-stem-cell-dynamics
#15
Chelsia Qiuxia Wang, Michelle Meng Huang Mok, Tomomasa Yokomizo, Vinay Tergaonkar, Motomi Osato
The Runx family genes play important roles in development and cancer, largely via their regulation of tissue stem cell behavior. Their involvement in two organs, blood and skin, is well documented. This review summarizes currently known Runx functions in the stem cells of these tissues. The fundamental core mechanism(s) mediated by Runx proteins has been sought; however, it appears that there does not exist one single common machinery that governs both tissue stem cells. Instead, Runx family genes employ multiple spatiotemporal mechanisms in regulating individual tissue stem cell populations...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28297148/-x-marks-the-spot-an-injection-technique-for-alopecia-areata
#16
Shruti Agrawal, Devika Patel, Tor Shwayder
Children with alopecia areata often have multiple patches of hair loss. When administering intralesional steroid injections, it can be difficult to monitor which areas have already been treated. Additionally, patients and their parents may worry that we did not treat all of the affected areas. We describe a simple technique to keep track of which areas have been treated.
March 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28297140/foxn1-duplication-and-congenital-hypertrichosis
#17
Eimear Gilhooley, Siobhan Gormally, Alan Irvine, Sally Ann Lynch, Sinead Collins
We report a case of congenital hypertrichosis and FOXN1 duplication. FOXN1 is a member of the forkhead box gene family, located on chromosome 17. Its function includes differentiation of epithelial cells and regulation of keratinocytes, especially hair keratins. Loss of function of these transcription factors leads to a disruption in hair growth. As far as we are aware, this is the first case of FOXN1 duplication associated with congenital hypertrichosis to be reported in the literature.
March 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28293734/-chemotherapy-induced-peripheral-neuropathy-and-neuropathic-pain
#18
U Schuler, S Heller
The perception of the media is that chemotherapy is mainly associated with nausea, vomiting and hair loss. In the longer term the development of peripheral neuropathy, i.e. chemotherapy-induced peripheral neuropathy (CIPN) is often more important for patients. The CIPN represents a side effect of many antineoplastic substances with severe functional impairment and its prevention and treatment is an important task. In addition to many interventions, which have been shown to be ineffective, physiotherapeutic measures and possibly the prophylactic application of cold are helpful for prevention...
March 14, 2017: Der Schmerz
https://www.readbyqxmd.com/read/28290603/fenofibrate-exerts-protective-effects-against-gentamicin-induced-toxicity-in-cochlear-hair-cells-by-activating-antioxidant-enzymes
#19
Channy Park, Hye-Min Ji, Se-Jin Kim, Sung-Hee Kil, Joon No Lee, Seongae Kwak, Seong-Kyu Choe, Raekil Park
Fenofibrate, an activator of peroxisome proliferator-activated receptors (PPARs), has been shown to protect the kidneys and brain cells from oxidative stress; however, its role in preventing hearing loss has not been reported to date, at least to the best of our knowledge. In this study, we demonstrated the protective effects of fenofibrate against gentamicin (GM)-induced ototoxicity. We found that the auditory brainstem response threshold which was increased by GM was significantly reduced by pre-treatment with fenofibrate in rats...
March 10, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28284826/permanent-alopecia-in-patients-with-breast-cancer-after-taxane-chemotherapy-and-adjuvant-hormonal-therapy-clinicopathologic-findings-in-a-cohort-of-10-patients
#20
Athina Fonia, Carlo Cota, Jane F Setterfield, Lynne J Goldberg, David A Fenton, Catherine M Stefanato
BACKGROUND: Anagen effluvium with reversible scalp alopecia is a known side effect of chemotherapy. However, there are an increasing number of reports in the literature documenting permanent alopecia in patients treated with taxanes. OBJECTIVE: We sought to describe the clinicopathologic features in breast cancer patients who underwent treatment with taxanes and adjuvant hormonal chemotherapy. METHODS: We reviewed the clinical and histopathologic information of a cohort of 10 patients treated with taxanes and adjuvant hormonal chemotherapy...
March 8, 2017: Journal of the American Academy of Dermatology
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