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https://www.readbyqxmd.com/read/28098826/hair-growth-promoting-and-anticancer-effects-of-p21-activated-kinase-1-pak1-inhibitors-isolated-from-different-parts-of-alpinia-zerumbet
#1
Nozomi Taira, Binh Cao Quan Nguyen, Shinkichi Tawata
PAK1 (p21-activated kinase 1) is an emerging target for the treatment of hair loss (alopecia) and cancer; therefore, the search for PAK1 blockers to treat these PAK1-dependent disorders has received much attention. In this study, we evaluated the anti-alopecia and anticancer effects of PAK1 inhibitors isolated from Alpinia zerumbet (alpinia) in cell culture. The bioactive compounds isolated from alpinia were found to markedly promote hair cell growth. Kaempferol-3-O-β-d-glucuronide (KOG) and labdadiene, two of the isolated compounds, increased the proliferation of human follicle dermal papilla cells by approximately 117%-180% and 132%-226%, respectively, at 10-100 μM...
January 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28096376/myosin-driven-transport-network-in-plants
#2
Elizabeth G Kurth, Valera V Peremyslov, Hannah L Turner, Kira S Makarova, Jaime Iranzo, Sergei L Mekhedov, Eugene V Koonin, Valerian V Dolja
We investigate the myosin XI-driven transport network in Arabidopsis using protein-protein interaction, subcellular localization, gene knockout, and bioinformatics analyses. The two major groups of nodes in this network are myosins XI and their membrane-anchored receptors (MyoB) that, together, drive endomembrane trafficking and cytoplasmic streaming in the plant cells. The network shows high node connectivity and is dominated by generalists, with a smaller fraction of more specialized myosins and receptors...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096354/loss-of-get-pathway-orthologs-in-arabidopsis-thaliana-causes-root-hair-growth-defects-and-affects-snare-abundance
#3
Shuping Xing, Dietmar Gerald Mehlhorn, Niklas Wallmeroth, Lisa Yasmin Asseck, Ritwika Kar, Alessa Voss, Philipp Denninger, Vanessa Aphaia Fiona Schmidt, Markus Schwarzländer, York-Dieter Stierhof, Guido Grossmann, Christopher Grefen
Soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) proteins are key players in cellular trafficking and coordinate vital cellular processes, such as cytokinesis, pathogen defense, and ion transport regulation. With few exceptions, SNAREs are tail-anchored (TA) proteins, bearing a C-terminal hydrophobic domain that is essential for their membrane integration. Recently, the Guided Entry of Tail-anchored proteins (GET) pathway was described in mammalian and yeast cells that serve as a blueprint of TA protein insertion [Schuldiner M, et al...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096043/a-simplified-protocol-for-culture-of-murine-neonatal-cardiomyocytes-on-nanoscale-keratin-coated-surfaces
#4
Aditi Jain, Venkatraman Ravi, Jaseer Muhamed, Kaushik Chatterjee, Nagalingam R Sundaresan
OBJECTIVE: We aim to develop a simple, efficient and cost-effective protocol for culturing the neonatal cardiomyocytes using keratin derived from human hair, which can be used for studying cardiac hypertrophy in vitro. METHODS: Keratin was extracted from human hair and applied as nanoscale coating onto the culture dishes. Physical parameters such as surface morphology and roughness of the coating were studied by SEM and AFM. Cardiomyocyte specific markers were assessed by immunofluorescence...
January 9, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28095566/prospective-evaluation-of-the-safety-and-efficacy-of-a-1060-nm-large-spot-size-vacuum-assisted-hair-removal-diode-laser-system-in-asian-pacific-fitzpatrick-s-skin-types-iv-v-patients
#5
Sushil T Tahiliani, Harsh S Tahiliani
Laser-based photoepilation of dark skin types demands a delicate combination of appropriate light wavelengths and spot size to achieve optimal epidermal-to-follicular energy absorption ratios. This prospective study assessed the axillary, arm, thigh, and back hair clearing ef cacy of the LightSheer In nity 1060 nm diode laser in 10 Fitzpatrick skin type IV-V patients. Each area was treated up to ve times, at 4-6-week intervals, after which immediate skin responses and adverse events were recorded. Hair count, color and coarseness were assessed before each treatment session, as well as 1, 3, and 6 months following the last session...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095555/megasessions-for-robotic-hair-restoration
#6
Joa O Carlos Pereira, Joa O Carlos Pereira Filho, Joa O Pedro Cabrera Pereira
A robotic system can select and remove individual hair follicles from the donor area with great precision and without fatigue. This report describes the use of the robotic system in a megasession for hair restoration. Patients were instructed to cut their hair to 1.0 to 1.2 mm before surgery. The robot selected and removed 600 to 800 grafts per hour so the follicular units (FU)s could be transplanted manually to recipient sites. The robot arm consists of a sharp inner punch and a blunt outer punch which together separate FUs from the sur- rounding tissue...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095415/klk5-and-klk7-ablation-fully-rescues-lethality-of-netherton-syndrome-like-phenotype
#7
Petr Kasparek, Zuzana Ileninova, Olga Zbodakova, Ivan Kanchev, Oldrich Benada, Karel Chalupsky, Maria Brattsand, Inken M Beck, Radislav Sedlacek
Netherton syndrome (NS) is a severe skin disease caused by the loss of protease inhibitor LEKTI, which leads to the dysregulation of epidermal proteases and severe skin-barrier defects. KLK5 was proposed as a major protease in NS pathology, however its inactivation is not sufficient to rescue the lethal phenotype of LEKTI-deficient mice. In this study, we further elucidated the in vivo roles of the epidermal proteases in NS using a set of mouse models individually or simultaneously deficient for KLK5 and KLK7 on the genetic background of a novel NS-mouse model...
January 17, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28094870/igf1r-signaling-acts-on-the-anagen-to-catagen-transition-in-the-hair-cycle
#8
Mathieu Castela, Fabien Linay, Edwige Roy, Philippe Moguelet, Jie Xu, Martin Holzenberger, Kiarash Khosrotehrani, Selim Aractingi
Insulin like growth factor 1 (IGF1) is important for skin development and homeostasis. However, overexpression and inactivation studies have produced variable findings regarding its role in hair follicle (HF) biology. Here, we studied a conditional and inducible knockout of the IGF1 receptor (IGF1R) in keratin 15-expressing bulge cells. Deletion of IGF1R after the development of the skin appendages in K15-IGF1R(KO) mice showed no abnormalities in epidermal homeostasis. Numbers of bulge cells were lower in K15-IGF1R(KO) mice than in controls, without consequences on wound healing, at least in young mice...
January 17, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28094436/cartilage-hair-hypoplasia-with-normal-height-in-childhood-four-patients-with-a-unique-genotype
#9
Paula Klemetti, Helena Valta, Svetlana Kostjukovits, Mervi Taskinen, Sanna Toiviainen-Salo, Outi Mäkitie
The manifestations of cartilage-hair hypoplasia (CHH), a metaphyseal chondrodysplasia caused by RMRP mutations, include short stature, hypoplastic hair, immunodeficiency and increased risk of malignancies. Clinical features show significant variability. We report a patient with normal height until age 12.5 years (-1.6 SDS at 11 years) who was diagnosed with CHH at 14 years. RMRP sequencing revealed compound heterozygosity for g.70A>G mutation and a 10-nucleotide duplication at position -13 (TACTCTGTGA)...
January 17, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28093668/molecular-characterization-of-hoxc8-gene-and-methylation-status-analysis-of-its-exon-1-associated-with-the-length-of-cashmere-fiber-in-liaoning-cashmere-goat
#10
Wen L Bai, Jiao J Wang, Rong H Yin, Yun L Dang, Ze Y Wang, Yu B Zhu, Yu Y Cong, Liang Deng, Dan Guo, Shi Q Wang, Shu H Yang, Hui L Xue
Homeobox protein Hox-C8 (HOXC8) is a member of Hox family. It is expressed in the dermal papilla of the skin and is thought to be associated with the hair inductive capacity of dermal papilla cells. In the present study, we isolated and characterized a full-length open reading frame of HOXC8 cDNA from the skin tissue of Liaoning cashmere goat, as well as, established a phylogenetic relationship of goat HOXC8 with that of other species. Also, we investigated the effect of methylation status of HOXC8 exon 1 at anagen secondary hair follicle on the cashmere fiber traits in Liaoning cashmere goat...
January 16, 2017: Genetica
https://www.readbyqxmd.com/read/28090471/hair-zinc-level-analysis-and-correlative-micronutrients-in-children-presenting-with-malnutrition-and-poor-growth
#11
Tae Hwan Han, Jin Lee, Yong Joo Kim
PURPOSE: Zinc deficiency can induce serious clinical problems in the gastrointestinal (GI) system and immune system and can affect growth and development. It is more severe in younger patients. Chronic zinc deficiency is reflected more precisely in hair than in serum. We studied hair zinc levels and other hair and serum micronutrients in chronic malnourished children to identify which micronutrients are affected or correlated with the other ones. METHODS: Hair mineral analyses were performed in 56 children (age, 1-15 years) presenting with malnutrition, poor growth, poor appetite, anorexia, with/without other GI symptoms (diarrhea, abdominal pain, constipation) from August 2012 to March 2015...
December 2016: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28089708/hair-corticosterone-measurement-in-mouse-models-of-type-1-and-type-2-diabetes-mellitus
#12
Rebecca L Erickson, Caroline A Browne, Irwin Lucki
In diabetes, glucocorticoid secretion increases secondary to hyperglycemia and is associated with an extensive list of disease complications. Levels of cortisol in humans, or corticosterone in rodents, are usually measured as transitory biomarkers of stress in blood or saliva. Glucocorticoid concentrations accumulate in human or animal hair over weeks and could more accurately measure the cumulative stress burden of diseases like chronic diabetes. In this study, corticosterone levels were measured in hair in verified rodent models of diabetes mellitus...
January 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28087829/tracheophytes-contain-conserved-orthologs-of-a-basic-helix-loop-helix-transcription-factor-to-modulate-root-hair-specific-genes
#13
Youra Hwang, Hee-Seung Choi, Hyun-Min Cho, Hyung-Taeg Cho
ROOT HAIR SPECIFIC (RHS) genes, which contain the root hair-specific cis-element (RHE) in their regulatory regions, function in root hair morphogenesis. Here, we demostrate that an Arabidopsis thaliana basic helix-loop-helix transcription factor, ROOT HAIR DEFECTVE SIX-LIKE 4 (RSL4), directly binds to the RHE in vitro and in vivo, up-regulates RHS genes, and stimulates root hair formation in Arabidopsis. Orthologs of RSL4 from a eudicot (poplar, Populus trichocarpa), a monocot (rice, Oryza sativa), and a lycophyte (Selaginella moellendorffii) each restored root hair growth in the Arabidopsis rsl4 mutant...
January 13, 2017: Plant Cell
https://www.readbyqxmd.com/read/28074842/analysis-of-the-fgf-gene-family-provides-insights-into-aquatic-adaptation-in-cetaceans
#14
Kiwoong Nam, Kyeong Won Lee, Oksung Chung, Hyung-Soon Yim, Sun-Shin Cha, Sae-Won Lee, JeHoon Jun, Yun Sung Cho, Jong Bhak, João Pedro de Magalhães, Jung-Hyun Lee, Jae-Yeon Jeong
Cetacean body structure and physiology exhibit dramatic adaptations to their aquatic environment. Fibroblast growth factors (FGFs) are a family of essential factors that regulate animal development and physiology; however, their role in cetacean evolution is not clearly understood. Here, we sequenced the fin whale genome and analysed FGFs from 8 cetaceans. FGF22, a hair follicle-enriched gene, exhibited pseudogenization, indicating that the function of this gene is no longer necessary in cetaceans that have lost most of their body hair...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074430/the-monomeric-gtpase-raba2-is-required-for-progression-and-maintenance-of-membrane-integrity-of-infection-threads-during-root-nodule-symbiosis
#15
Virginia Dalla Via, Soledad Traubenik, Claudio Rivero, O Mario Aguilar, María Eugenia Zanetti, Flavio Antonio Blanco
Progression of the infection canal that conducts rhizobia to the nodule primordium requires a functional Rab GTPase located in Golgi/trans-Golgi that also participate in root hair polar growth. Common bean (Phaseolus vulgaris) symbiotically associates with its partner Rhizobium etli, resulting in the formation of root nitrogen-fixing nodules. Compatible bacteria can reach cortical cells in a tightly regulated infection process, in which the specific recognition of signal molecules is a key step to select the symbiotic partner...
January 10, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28054231/regulation-of-root-development-in-arabidopsis-thaliana-by-phytohormone-secreting-epiphytic-methylobacteria
#16
Jana Klikno, Ulrich Kutschera
In numerous experimental studies, seedlings of the model dicot Arabidopsis thaliana have been raised on sterile mineral salt agar. However, under natural conditions, no plant has ever grown in an environment without bacteria. Here, we document that germ-free (gnotobiotic) seedlings, raised on mineral salt agar without sucrose, develop very short root hairs. In the presence of a soil extract that contains naturally occurring microbes, root hair elongation is promoted; this effect can be mimicked by the addition of methylobacteria to germ-free seedlings...
January 4, 2017: Protoplasma
https://www.readbyqxmd.com/read/28049063/activity-of-pericampylus-glaucus-and-periglaucine-a-in-vitro-against-nasopharangeal-carcinoma-and-anti-inflammatory-activity
#17
Fiona Natalia Shipton, Teng-Jin Khoo, Md Shahadat Hossan, Christophe Wiart
ETHNOPHARMACOLOGICAL RELEVANCE: P. glaucus is a climbing plant found across Asia and used in traditional medicine to treat a number of conditions including splenomegaly, fever, cough, laryngitis, pulmonary disease, asthma, headache, hair loss, snake bite, boar bite, factures, boils, tumours, tetanus, rheumatic pain, itches and eclampsia. AIM OF THE STUDY: To test extracts of P. glaucus in a number of bioassays and determine the legitimacy of its traditional use...
December 31, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28046145/effects-of-cows-grazing-toxic-endophyte-infected-tall-fescue-or-novel-endophyte-infected-tall-fescue-in-late-gestation-on-cow-performance-reproduction-and-progeny-growth-performance-and-carcass-characteristics
#18
L M Shoup, L M Miller, M Srinivasan, F A Ireland, D W Shike
Very little is known regarding the effects of cow exposure to toxic ergot alkaloids in late gestation and the subsequent, long-term effects on progeny. Therefore, the objectives were to determine the effects of grazing toxic endophyte-infected tall fescue () or novel endophyte-infected tall fescue during late gestation on cow BW, BCS, hair coat score (HCS), respiration rates, milk production, and reproduction and on growth performance and carcass characteristics of progeny. Eighty gestating, Angus × Simmental cows (age = 6...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28044367/bilateral-half-head-comparison-of-1-anthralin-ointment-in-children-with-alopecia-areata
#19
Mustafa Özdemir, Ali Balevi
BACKGROUND/OBJECTIVES: Alopecia areata (AA) is one of the most difficult skin diseases to manage well. In children, anthralin is commonly used for the treatment of AA. Available research consists of a limited number of uncontrolled trials that assessed the effectiveness of anthralin in promoting hair growth in patients with AA. The objective of this study was to validate the clinical effectiveness of short-contact anthralin 1% ointment in children with AA. METHODS: Thirty children with chronic, severe, treatment-refractory, extensive AA were treated with 1% anthralin ointment...
January 3, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28042321/pre-vascularization-enhances-therapeutic-effects-of-human-mesenchymal-stem-cell-sheets-in-full-thickness-skin-wound-repair
#20
Lei Chen, Qi Xing, Qiyi Zhai, Mitchell Tahtinen, Fei Zhou, Lili Chen, Yingbin Xu, Shaohai Qi, Feng Zhao
Split thickness skin graft (STSG) implantation is one of the standard therapies for full thickness wound repair when full thickness autologous skin grafts (FTG) or skin flap transplants are inapplicable. Combined transplantation of STSG with dermal substitute could enhance its therapeutic effects but the results remain unsatisfactory due to insufficient blood supply at early stages, which causes graft necrosis and fibrosis. Human mesenchymal stem cell (hMSC) sheets are capable of accelerating the wound healing process...
2017: Theranostics
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