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https://www.readbyqxmd.com/read/29319595/pythium-keratitis-leading-to-fatal-cavernous-sinus-thrombophlebitis
#1
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
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
#2
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
#3
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...
December 11, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29217084/oral-phenytoin-protects-against-experimental-cyclophosphamide-chemotherapy-induced-hair-loss
#4
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)...
December 4, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/29214488/electron-microscopic-observations-of-prokaryotic-surface-appendages
#5
REVIEW
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
https://www.readbyqxmd.com/read/29160686/human-hair-keratin-for-biocompatible-flexible-and-transient-electronic-devices
#6
Jieun Ko, Luong Thi Hieun 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 its non-toxic property and solution processabillity. 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 above 1.27 μF/cm2 at 20 Hz due to the formation of electrical double layer...
November 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29141803/-nail-loss-after-teriflunomide-treatment-a-new-potential-adverse-event
#7
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
https://www.readbyqxmd.com/read/29138706/radiological-diagnosis-of-a-rare-premature-aging-genetic-disorder-progeria-hutchinson-gilford-syndrome
#8
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
https://www.readbyqxmd.com/read/29128827/a-comparison-study-on-a-sulfonated-graphene-polyaniline-nanocomposite-coated-fiber-for-analysis-of-nicotine-in-solid-samples-through-the-traditional-and-vacuum-assisted-hs-spme
#9
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
https://www.readbyqxmd.com/read/29097841/morphological-analysis-of-patchy-thickening-and-reddish-discoloration-of-active-hair-growth-areas-in-the-skin-of-new-zealand-white-rabbits
#10
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
https://www.readbyqxmd.com/read/29095740/melanocytic-matricoma-with-consumption-of-the-epidermis-an-atypical-histologic-attribute-or-a-malignant-variant
#11
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...
October 27, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29094427/dermoscopic-analysis-of-the-skin-of-healthy-warmblood-horses-a-descriptive-study-of-34-cases-in-italy
#12
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
https://www.readbyqxmd.com/read/29081354/the-eversible-tentacle-organs-of-polyommatus-caterpillars-lepidoptera-lycaenidae-morphology-fine-structure-sensory-supply-and-functional-aspects
#13
W Gnatzy, M Jatho, T Kleinteich, S N Gorb, R Hustert
In their late (3(th) and 4th) larval stages, caterpillars of the myrmecophilous lycaenid (Lepidoptera) species Polyommatus coridon and P.icarus respectively, 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...
October 25, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/29077501/management-of-plantar-keratodermaslessons-from-pachyonychia-congenita
#14
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
https://www.readbyqxmd.com/read/29066060/re-introducing-the-delto-acromial-perforator-flap-clinical-experience-and-cadaver-dissection
#15
Adrian S H Ooi, Daniel R Butz, Chad M Teven, Lawrence J Gottlieb
BACKGROUND: Although perforator flaps from the pectoral branch of the thoraco-acromial (TA) axis have been well-described, there are few reports of perforator flaps based on the delto-acromial (DA) branches. We have found a reliable perforator coming off the DA branch of the TA axis, and have named a flap based on this vessel the delto-acromial perforator (DAP) flap. We describe our experience with the DAP flap together with a fresh cadaver anatomical study. METHODS: A retrospective review of all DAP flaps performed between December 2012 and January 2015 at our institution, with analysis of operative details, flap characteristics and surgical outcomes...
September 12, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29058654/exogenous-polyunsaturated-fatty-acids-pufas-alter-phospholipid-composition-membrane-permeability-biofilm-formation-and-motility-in-acinetobacter-baumannii
#16
Adrianna E Eder, Saba A Munir, Chelsea R Hobby, Derek M Anderson, Joshua L Herndon, Andrew W Siv, Steven J K Symes, David K Giles
Acinetobacter baumannii is a ubiquitous multidrug-resistant bacteria that is found on a variety of surfaces, including skin, hair and soil. During the past decade, A. baumannii has emerged as a significant cause of nosocomial infections in the United States. Recent studies have highlighted the ability of some bacteria to utilize a wide variety of fatty acids as a membrane remodelling strategy. Considering this, we hypothesized that fatty acids may have an effect on the emerging pathogen A. baumannii. Thin-layer chromatography indicated structural alterations to major phospholipids...
November 2017: Microbiology
https://www.readbyqxmd.com/read/29029393/intermittent-treatment-with-farnesyltransferase-inhibitor-and-sulforaphane-improves-cellular-homeostasis-in-hutchinson-gilford-progeria-fibroblasts
#17
Diana Gabriel, Dinah Dorith Shafry, Leslie B Gordon, Karima Djabali
Hutchinson-Gilford progeria syndrome (HGPS) is a rare genetic condition associated with mutations in the LMNA gene. This disease recapitulates some aspects of normal aging, such as hair loss, thin skin, joint stiffness, and atherosclerosis. The latter leads to heart attack or stroke that causes death at an average age of 14.6 years in children with HGPS. The typical LMNA mutation results in the production of a truncated prelamin A protein, progerin, that remains permanently farnesylated and abnormally associated with the nuclear envelope...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28956383/-factors-influencing-induction-and-in-vitro-culture-of-hairy-roots-in-phytolacca-americana-l
#18
Heping Shi, Yuanfeng Zhu, Po Keung Eric Tsang, Cheuk Fai Stephen Chow, Zhen'ao Yu, Shengqin Huang
To use hairy roots for producing medicinal ingredients of Phytolacca americana L. we studied the factors influencing the induction and in vitro culture. Hairy roots could be incited from the veins of cut surface (morphological lower) of P. americana L. leaf explants around 18 days after infection with the strain of Agrobacterium rhizogenes ATCC15834. The highest rooting rate, 70%, was obtained when leaf explants were pre-cultured for 1 day, infected for 20 min, and co-cultured for 4 days. The transformation was confirmed by PCR amplification of rolC of Ri plasmid and silica gel thin-layer chromatography of opines from P...
February 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/28948053/a-smarca2-mutation-in-the-first-case-report-of-nicolaides-baraitser-syndrome-in-latin-america-genotype-phenotype-correlation
#19
Ana Isabel Sánchez, Jorge Armando Rojas
Nicolaides-Baraitser syndrome (NCBRS) is a rare and well-recognized entity that was first described in 1993, with a prevalence that is currently not known. It is recognized as a distinctive entity, with some variability in its signs and symptoms. The most important characteristics include intellectual disability, peculiar facial features including sparse scalp hair, coarse facial features, low frontal hairline, and microcephaly, and seizures. Additional features may include epicanthic folds, thin upper lip vermilion with thick lower lip vermilion, skeletal abnormalities, and severe language impairment...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28940348/empty-spaces
#20
Adira Hulkower
"I'm Jewish, you know, and my mother said, 'Always trust the rabbis.'" I never heard Mr. Weisman's refrain from his own lips. I never heard him say any words all. By the time I met him he was in a vegetative state, a man on the precipice of invisibility-white hair, thin pale limbs, melting into sheets of the same color. When I think about Mr. Weisman, I see empty spaces-the absence of his voice, the too-large bed for his shrinking frame, the always-empty chair by his bedside, and most of all, the myriad gaps in his life story...
September 2017: Hastings Center Report
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