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Hair thinning

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https://www.readbyqxmd.com/read/28922518/accelerated-epithelialization-and-improved-wound-healing-metrics-in-porcine-full-thickness-wounds-transplanted-with-full-thickness-skin-micrografts
#1
Christina L Rettinger, John L Fletcher, Anders H Carlsson, Rodney K Chan
Split-thickness skin grafting (STSG) is the current gold standard for treatment of extensive burn and traumatic skin injuries. However, STSG is limited by donor-site morbidity and availability, and often leads to scarring and wound contracture. Furthermore, these thin grafts lack dermal elements such as nerves and adnexa which are important in recapitulating normal skin function. Methods of fractional skin replacement either as minced STSGs or microscopic skin tissue columns (MSTCs) have been proposed, though these techniques have not been fully-characterized and lack evidence of regenerated adnexal structures...
September 18, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28921826/growing-evidence-of-the-beneficial-effects-of-a-marine-protein-based-dietary-supplement-for-treating-hair-loss
#2
REVIEW
Carl S Hornfeldt
BACKGROUND: Hair loss is a common condition among women with a range of causes including nutritional deficiencies. AIMS: To review the clinical data supporting the use of an oral marine supplement designed to promote hair growth. PATIENTS/METHODS: Adult women with temporary thinning hair. Following an initial pilot study, five randomized, double-blind studies assessed the effectiveness of the oral marine supplement for promoting hair growth...
September 16, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28919372/biological-applications-of-kinetics-of-wetting-and-spreading
#3
REVIEW
G Ahmed, O Arjmandi Tash, J Cook, A Trybala, V Starov
Wetting and spreading kinetics of biological fluids has gained a substantial interest recently. The importance of these fluids in our lives has driven the pace of publications. Globally scientists have ever growing interest in understanding wetting phenomena due to its vast applications in biological fluids. It is impractical to review extremely large number of publications in the field of kinetics of complex biological fluids and cosmetic solutions on diverse surfaces. Therefore, biological and cosmetic applications of wetting and spreading dynamics are considered in the following areas: (i) Spreading of Newtonian liquids in the case of non-porous and porous substrates...
August 18, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28906089/alopecia-as-unique-clue-to-syphilis-in-a-patient
#4
Laura Atzori, Laura Mantovani, Roberta Satta, Caterina Ferreli
Alopecia is an uncommon manifestation of syphilis, simulating other common forms of hair-loss, but representing a crucial complaint for the patient, who might by converse have not noticed other signs and symptoms of the disease. Esthetic issues undervaluation might prolong illness, and postpone appropriate treatment. A 42-year-old patient, HIV negative, presented with a 2-month history of progressive generalized thinning of the hairs and small non-scarring irregular alopecia patches of the parietal-occipital areas of the scalp...
October 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28892484/six1-is-essential-for-differentiation-and-patterning-of-the-mammalian-auditory-sensory-epithelium
#5
Ting Zhang, Jinshu Xu, Pascal Maire, Pin-Xian Xu
The organ of Corti in the cochlea is a two-cell layered epithelium: one cell layer of mechanosensory hair cells that align into one row of inner and three rows of outer hair cells interdigitated with one cell layer of underlying supporting cells along the entire length of the cochlear spiral. These two types of epithelial cells are derived from common precursors in the four- to five-cell layered primordium and acquire functionally important shapes during terminal differentiation through the thinning process and convergent extension...
September 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28858647/hair-segmentation-using-adaptive-threshold-from-edge-and-branch-length-measures
#6
Ian Lee, Xian Du, Brian Anthony
BACKGROUND: Non-invasive imaging techniques allow the monitoring of skin structure and diagnosis of skin diseases in clinical applications. However, hair in skin images hampers the imaging and classification of the skin structure of interest. Although many hair segmentation methods have been proposed for digital hair removal, a major challenge in hair segmentation remains in detecting hairs that are thin, overlapping, of similar contrast or color to underlying skin, or overlaid on highly-textured skin structure...
August 24, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28856431/morphological-and-molecular-characteristics-of-six-sarcocystis-spp-from-red-deer-cervus-elaphus-in-spain-including-sarcocystis-cervicanis-and-three-new-species
#7
Bjørn Gjerde, Mónica Luzón, José María Alunda, Concepción de la Fuente
Samples of muscle tissue from the diaphragm, oesophagus and/or heart of eight adult red deer (Cervus elaphus hispanicus) from the Quintos de Mora Park in Toledo, Central Spain, were screened for sarcocysts by means of the compression method. From positive samples, individual sarcocysts were excised and examined in wet mounts under a light microscope (LM) in order to study their basic morphology before being preserved for molecular studies. In all red deer examined, only microscopic sarcocysts were found. Those in the diaphragm and oesophagus were spindle-shaped and about 1 × 0...
August 30, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28839396/nilotinib-induced-keratosis-pilaris-associated-with-alopecia-areata-and-eyebrow-thinning
#8
Maya Halabi Tawil, Rana El Khoury, Roland Tomb, Marwan Ghosn
Tyrosine kinase enzymes are an attractive target for anticancer therapies. Tyrosine kinase inhibitors (TKI) are well tolerated; somehow severe systemic side effects are rarely seen during treatment. Toxicities of skin and appendages may lead to poor compliance, psychosocial inconvenience, and drug interruption. Changes of the hair can arise following cures with TKI. Nilotinib, a second-generation TKI, has been responsible for various cutaneous side effects including different clinical presentations of alopecia (scarring and nonscarring forms)...
April 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28839391/adult-onset-hair-casts-nits-which-do-not-itch
#9
Archana Jagdish Lokhande, Amita Sutaria
Hair casts (HCs) are thin, elongated, firm, whitish cylindrical concretions which ensheath the hair shaft and can be easily dislodge. They are of two different types: peripilar and parakeratotic keratin cast. Due to its clinical resemblance to pediculosis capitis, the entity is also known as pseudonits. Al though not unusual, false diagnoses are common, and thus, it is very important to correctly differentiate it from other similar conditions. We report here a case of HC involving scalp as well as body hair in association with androgenetic alopecia in a 22-year-old male patient...
April 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28761263/a-case-of-membranous-aplasia-cutis-congenita-and-dermoscopic-features
#10
Belén Lozano-Masdemont
Membranous, bullous, or cystic aplasia cutis congenita is a clinical subtype of aplasia cutis, covered with a membranous or glistening surface. A male newborn presented at birth with two flat lesions on the left parietal scalp, surrounded by a rim of terminal hairs. Physical examination revealed two translucent papules. On dermoscopy, they showed a reddish background, thin, lineal vessels and, remarkably few hair bulbs could be seen because of the translucency of the lesion. No skull bone and brain defects were found...
January 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28728320/temple-and-postauricular-dissection-in-face-and-neck-lift-surgery
#11
Joo Heon Lee, Tae Suk Oh, Sung Wan Park, Jae Hoon Kim, Tanvaa Tansatit
Periauricular paresthesia may afflict patients for a significant amount of time after facelift surgery. When performing face and neck lift surgery, temple and posterior auricular flap dissection is undertaken directly over the auriculotemporal, great auricular, and lesser occipital nerve territory, leading to potential damage to the nerve. The auriculotemporal nerve remains under the thin outer superficial fascia just below the subfollicular level in the prehelical area. To prevent damage to the auriculotemporal nerve and to protect the temporal hair follicle, the dissection plane should be kept just above the thin fascia covering the auriculotemporal nerve...
July 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28726326/speechless
#12
Nadine T Himelfarb
Bright blue eyes rimmed with deep sun wrinkles, a crown of mousy brown hair that appeared freshly cut by a four-year old with safety scissors, the patient was thin figured, wearing a flannel, yellowed t-shirt peaking from underneath, and a boxy, heavily stained canvas jacket over the shoulders. Old jeans were cinched at the waist by a crackled leather belt. The dirty right foot which lay bare on the stretcher was then thrust at me. The patient pointed angrily at the exposed foot. This article is protected by copyright...
July 20, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28722458/-androgenetic-alopecia-in-women
#13
Jana Krabcová
Androgenetic alopecia is one of the most common diagnoses in a hair clinic. It is non-scarring pattern hair losses that affect individuals, independent on severity, age and gender. The incidence of AGA increases within the age. AGA affects women less frequently, is usually milder and is associated with diffuse thinning of the hair scalp. Prompt diagnosis and treatment are essential for obtaining optimal outcome.
2017: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/28705285/childhood-onset-keratosis-lichenoides-chronica-accompanied-by-severe-hair-loss
#14
Sibel Dogan, Efsun Kılınç, Gül Erkin Özaygen, Nilgün Atakan, Özay Gököz, Sibel Ersoy Evans
A 37-year-old woman attended the dermatology outpatient clinic because of recent hair loss from the eyebrows and axillae. Her past medical history revealed mild generalized erythema and hyperpigmented papules and plaques since childhood. On dermatologic examination, there were flat-topped, purple to brown hyperkeratotic lichenoid papules and linear plaques on the elbows, trunk, and buttocks, some of which coalesced into hyperpigmented reticular plaques on the axillae, neck, and groin. Mild erythema was noted...
2017: Skinmed
https://www.readbyqxmd.com/read/28694814/root-hair-mutations-displace-the-barley-rhizosphere-microbiota
#15
Robertson-Albertyn Senga, Senga Alegria Terrazas, Katharin Balbirnie, Manuel Blank, Agnieszka Janiak, Iwona Szarejko, Beata Chmielewska, Jagna Karcz, Jenny Morris, Pete E Hedley, Timothy S George, Davide Bulgarelli
The rhizosphere, the thin layer of soil surrounding and influenced by plant roots, defines a distinct and selective microbial habitat compared to unplanted soil. The microbial communities inhabiting the rhizosphere, the rhizosphere microbiota, engage in interactions with their host plants which span from parasitism to mutualism. Therefore, the rhizosphere microbiota emerges as one of the determinants of yield potential in crops. Studies conducted with different plant species have unequivocally pointed to the host plant as a driver of the microbiota thriving at the root-soil interface...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28692756/directional-solution-coating-by-the-chinese-brush-a-facile-approach-to-improving-molecular-alignment-for-high-performance-polymer-tfts
#16
Fang-Ju Lin, Cheng Guo, Wei-Tsung Chuang, Chien-Lung Wang, Qianbin Wang, Huan Liu, Chain-Shu Hsu, Lei Jiang
Directional solution coating by the Chinese brush provides a facile approach to fabricate highly oriented polymer thin films by finely controlling the wetting and dewetting processes under directional stress. The biggest advantage of the Chinese brush over the normal western brush is the freshly emergent hairs used, whose unique tapered structure renders a dynamic balance of the liquid within the brush by multiple forces when interacting with the liquid. Consequently, the liquid is steadily held within the brush without any unexpected leakage, making the liquid transfer proceed in a well-controllable manner...
September 2017: Advanced Materials
https://www.readbyqxmd.com/read/28688893/the-effects-of-temperature-activity-and-convection-on-the-plastron-po2-of-the-aquatic-bug-aphelocheirus-aestivalis-hemiptera-aphelocheiridae
#17
Karl K Jones, Stefan K Hetz, Roger S Seymour
The aquatic bug Aphelocheirus aestivalis (Fabricius 1794) utilises a plastron, a thin bubble layer on the surface of its body to extract O2 from the water. Millions of tiny hairs keep the bubble from collapsing, enabling the bug to remain submerged indefinitely. The development of fibre optic O2-probes has allowed measurements of O2 pressure (PO2) surrounding the plastron, and within the plastron although only for short periods. Here we developed methods to continuously measure plastron PO2, and investigate how it is affected by temperature (15, 20, 25°C), activity, and water circulation...
July 5, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28650975/defective-glucocorticoid-receptor-signaling-and-keratinocyte-autonomous-defects-contribute-to-skin-phenotype-of-mouse-embryos-lacking-the-hsp90-co-chaperone-p23
#18
Marta Madon-Simon, Iwona Grad, Pilar Bayo, Paloma Pérez, Didier Picard
p23 is a small acidic protein with intrinsic molecular chaperone activity. It is best known as a co-chaperone of the major cytosolic molecular chaperone Hsp90. p23 binds the N-terminus of Hsp90 and stabilizes the ATP-bound and N-terminally closed Hsp90 dimer. It is in this configuration that many Hsp90 clients are most stably bound. Considering the important role of p23 in the Hsp90 cycle, it came as a surprise that it is not absolutely essential for viability in the budding yeast or for mouse development. Mice without p23 develop quite normally until birth and then all die perinatally because of immature lungs...
2017: PloS One
https://www.readbyqxmd.com/read/28629075/fabrication-of-chitosan-au-tio2-nanotube-based-dry-electrodes-for-electroencephalography-recording
#19
Yanjuan Song, Penghai Li, Mingji Li, Hongji Li, Cuiping Li, Dazhi Sun, Baohe Yang
In this paper, we describe a method for fabricating dry electrodes for use in recording electroencephalograms (EEGs), which are based on the use of chitosan (Ch), gold (Au) particles, and titanium dioxide (TiO2) nanotube arrays deposited on titanium (Ti) thin sheets. The samples were characterized by scanning electron microscopy, X-ray diffraction, electrochemical impedance spectroscopy, and EEG signal collection. The TiO2 nanotube arrays were grown on the Ti thin sheet by an electrochemical anodic oxidation method...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28595803/enhanced-bending-failure-strain-in-biological-glass-fibers-due-to-internal-lamellar-architecture
#20
Michael A Monn, Haneesh Kesari
The remarkable mechanical properties of biological structures, like tooth and bone, are often a consequence of their architecture. The tree ring-like layers that comprise the skeletal elements of the marine sponge Euplectella aspergillum are a quintessential example of the intricate architectures prevalent in biological structures. These skeletal elements, known as spicules, are hair-like fibers that consist of a concentric array of silica cylinders separated by thin, organic layers. Thousands of spicules act like roots to anchor the sponge to the sea floor...
May 28, 2017: Journal of the Mechanical Behavior of Biomedical Materials
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