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Hair thinning

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 27, 2018: European Journal of Pharmaceutical Sciences
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...
February 23, 2018: Annals of Plastic Surgery
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...
February 20, 2018: Dermatologic Therapy
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
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
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
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...
January 9, 2018: Cornea
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
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
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
Ki Woo Kim
Prokaryotic microbes possess a variety of appendages on their cell surfaces. The most commonly known surface appendages of bacteria include flagella, pili, curli, and spinae. Although archaea have archaella (archaeal flagella) and various types of pili that resemble those in bacteria, cannulae, and hami are unique to archaea. Typically involved in cell motility, flagella, the thickest appendages, are 20-26 nm and 10-14 nm wide in bacteria and archaea, respectively. Bacterial and archaeal pili are distinguished by their thin, short, hair-like structures...
December 2017: Journal of Microbiology / the Microbiological Society of Korea
Jieun Ko, Luong T H Nguyen, Abhijith Surendran, Bee Yi Tan, Kee Woei Ng, Wei Lin Leong
Biomaterials have been attracting attention as a useful building block for biocompatible and bioresorbable electronics due to their nontoxic property and solution processability. In this work, we report the integration of biocompatible keratin from human hair as dielectric layer for organic thin-film transistors (TFTs), with high performance, flexibility, and transient property. The keratin dielectric layer exhibited a high capacitance value of above 1.27 μF/cm2 at 20 Hz due to the formation of electrical double layer...
December 13, 2017: ACS Applied Materials & Interfaces
L Mancinelli, P Amerio, M di Ioia, V Di Tommaso, G De Luca, M Onofrj, A Lugaresi
Nail loss might represent a new, reversible, adverse event associated with teriflunomide treatment. It shares close analogies with hair loss and thinning, known adverse events of teriflunomide. MS specialists should be aware of this possibility and evaluate treatment discontinuation.
November 2017: Multiple Sclerosis and related Disorders
Haji Mohammed Nazir, Akshiitha Ramesh Baabhu, Yuvaraj Muralidharan, Seena Cheppala Rajan
Hutchinson-Gilford Progeria Syndrome (HGPS) is a rare disease with a combination of short stature, bone abnormalities, premature ageing, and skin changes. Though the physical appearance of these patients is characteristic, there is little emphasis on the characteristic radiological features. In this paper, we report a 16-year-old boy with clinical and radiological features of this rare genetic disorder. He had a characteristic facial appearance with a large head, large eyes, thin nose with beaked tip, small chin, protruding ears, prominent scalp veins, and absence of hair...
2017: Case Reports in Radiology
Alireza Ghiasvand, Samira Koonani, Fatemeh Yazdankhah, Saeid Farhadi
A simple, rapid, and reliable headspace solid-phase microextraction (HS-SPME) procedure, reinforced by applying vacuum in the extraction vial, was developed. It was applied for the extraction of nicotine in solid samples prior to determination by gas chromatography-flame ionization detection (GC-FID). First, the surface of a narrow stainless steel wire was made porous and adhesive by platinization to obtain a durable, higher surface area, and resistant fiber. Then, a thin film of sulfonated graphene/polyaniline (Sulf-G/PANI) nanocomposite was synthesized and simultaneously coated on the platinized fiber using the electrophoretic deposition (EPD) method...
November 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
Tomoko Ishihara, Haruhiro Yamashita, Takanobu Sakurai, Junya Morita, Kouji Sakamoto, Aiko Ishii, Minoru Sasaki
Patchy thickening and reddish discoloration of active hair growth areas of skin in rabbits are occasionally found, and this gross feature could affect precise evaluation when conducting a dermal irritation test. Since little is known about the mechanism of this phenomenon, we examined the dorsal skin of New Zealand White rabbits morphologically and immunohistochemically in order to identify the possible mechanism responsible for developing these skin changes in relation to the hair cycle. Skin samples from 4 rabbits were divided into three groups (5 samples/group) based on their macroscopic characteristics: a thickened skin, erythematous skin, and smooth skin group...
October 2017: Journal of Toxicologic Pathology
Caroline Y Winslow, Ivan Camacho, Carlos H Nousari
Melanocytic matricoma is a recently described cutaneous adnexal tumor composed of matrical and supramatrical cells admixed with pigmented dendritic melanocytes, thought to recapitulate the anagen bulb of the hair follicle. We report a case of a 75-year-old white man, which demonstrates consumption of the epidermis that is defined as thinning of the epidermis with attenuation of the basal and suprabasal layers and loss of the normal rete architecture in areas of direct contact with neoplastic cells. It has been associated with aggressive histologic features in melanoma and likely represents an early phase of ulceration due to attenuation...
December 2017: American Journal of Dermatopathology
Sara Legnani, Eric Zini, Paola Roccabianca, Beatrice Funiciello, Giordana Zanna
BACKGROUND: Dermoscopy is a diagnostic tool that has been introduced into small animal dermatology for the evaluation of hair and the skin surface. To the best of the authors' knowledge, the use of this technique on horses and the dermoscopic appearance of equine hair and skin have yet to be reported. HYPOTHESIS/OBJECTIVES: To assess the feasibility of dermoscopy, and to describe hair and skin surface features of healthy warmblood horses. ANIMALS: Thirty four client-owned, healthy adult horses...
November 1, 2017: Veterinary Dermatology
W Gnatzy, M Jatho, T Kleinteich, S N Gorb, R Hustert
In their late (3rd and 4th) larval stages, caterpillars of the myrmecophilous lycaenid (Lepidoptera) species Polyommatus coridon and Polyommatus icarus, possess on their 8th abdominal segment two eversible so called tentacle organs (TOs). Previous histological and behavioural results have proposed that the TOs may release a volatile substance that elicits "excited runs" in attendant ants. In our study we investigated for the first time the temporal in- and eversion pattern of TOs. Using nerve tracing, Micro-CT, light- and electron microscopy techniques we studied (i) the histology of the 8th abdominal segment, (ii) the fine structure of the cuticular and cellular apparatus of the TOs, (iii) the attachment sites of the retractor muscle of each TO and (iv) the fine structure of the long slender tentacle hairs which are exposed to the outside, when the TOs are everted and fold back into the TO-sac during inversion...
November 2017: Arthropod Structure & Development
Rebecca M Porter, Albert A Bravo, Frances J D Smith
Plantar keratodermas can arise due to a variety of genetically inherited mutations. The need to distinguish between different plantar keratoderma disorders is becoming increasingly apparent because there is evidence that they do not respond identically to treatment. Diagnosis can be aided by observation of other clinical manifestations, such as palmar keratoderma, more widespread hyperkeratosis of the epidermis, hair and nail dystrophies, or erythroderma. However, there are frequent cases of plantar keratoderma that occur in isolation...
September 2017: Journal of the American Podiatric Medical Association
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