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https://www.readbyqxmd.com/read/28329569/linear-trichoepithelioma-on-the-neck-of-a-15-year-old-girl
#1
Amanda J Laska, Roberto A Belli, Todd T Kobayashi
Trichoepitheliomas are trichogenic tumors that can have various clinical morphologies. These tumors are benign and differentiate toward the outer root sheath of the hair follicle. Solitary trichoepitheliomas arise sporadically, in contrast to multiple trichoepitheliomas, which are usually inherited as an autosomal dominant trait or as part of various genetic syndromes. We report a case of an adolescent female with a linear array of trichoepitheliomas on her left neck.
November 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28324846/novel-alk5-inhibitor-tp0427736-reduces-tgf-%C3%AE-%C3%A3-induced-growth-inhibition-in-human-outer-root-sheath-cells-and-elongates-anagen-phase-in-mouse-hair-follicles
#2
Takumi Naruse, Mari Aoki, Natsuko Fujimoto, Seiji Arase, Hajimu Oura, Yasuji Ueda, Akiko Ikeda
BACKGROUND: Androgenic alopecia (AGA) occurs as a result of the contraction of the anagen phase because of the action of androgens on hair follicles. TGF-β production from dermal papillae is enhanced by androgens, and growth inhibition of hair-follicle cells is induced by TGF-β, and the hair cycle progresses from the anagen phase to the catagen phase. We investigated both the in vitro and in vivo potency of the newly identified ALK5 inhibitor TP0427736 {6-[4-(4-methyl-1,3-thiazol-2-yl)-1H-imidazol-5-yl]-1,3-benzothiazole}...
January 25, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28314794/the-microtubule-associated-protein-map18-affects-rop2-gtpase-activity-during-root-hair-growth
#3
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/28306698/oral-application-of-magnesium-l-threonate-attenuates-vincristine-induced-allodynia-and-hyperalgesia-by-normalization-of-tumor-necrosis-factor-%C3%AE-nuclear-factor-%C3%AE%C2%BAb-signaling
#4
Ting Xu, Dai Li, Xin Zhou, Han-Dong Ouyang, Li-Jun Zhou, Hang Zhou, Hong-Mei Zhang, Xu-Hong Wei, Guosong Liu, Xian-Guo Liu
BACKGROUND: Antineoplastic agents, including vincristine, often induce neuropathic pain and magnesium deficiency clinically, but the causal link between them has not been determined. No drug is available for treating this form of neuropathic pain. METHODS: Injection of vincristine (0.1 mg · kg · day, intraperitoneally, for 10 days) was used to induce nociceptive sensitization, which was accessed with von Frey hairs and the plantar tester in adult male Sprague-Dawley rats...
March 17, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28286514/ethylene-improves-root-system-development-under-cadmium-stress-by-modulating-superoxide-anion-concentration-in-arabidopsis-thaliana
#5
Ann Abozeid, Zuojia Ying, Yingchao Lin, Jia Liu, Zhonghua Zhang, Zhonghua Tang
This work aims at identifying the effects of ethylene on the response of Arabidopsis thaliana root system to cadmium chloride (CdCl2) stress. Two ethylene-insensitive mutants, ein2-5 and ein3-1eil1-1, were subjected to (25, 50, 75, and 100 μM) CdCl2 concentrations, from which 75 μM concentration decreased root growth by 40% compared with wild type Col-0 as a control. Ethylene biosynthesis increased in response to CdCl2 treatment. The length of primary root and root tip in ein2-5 and ein3-1eil1-1 decreased compared with wild type after CdCl2 treatment, suggesting that ethylene play a role in root system response to Cd stress...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28285661/colonization-and-beneficial-effects-on-annual-ryegrass-by-mixed-inoculation-with-plant-growth-promoting-bacteria
#6
Nádia L Castanheira, Ana Catarina Dourado, Isabel Pais, José Semedo, Paula Scotti-Campos, Nuno Borges, Gilda Carvalho, Maria Teresa Barreto Crespo, Paula Fareleira
Multi-strain inoculants have increased potential to accomplish a diversity of plant needs, mainly attributed to its multi-functionality. This work evaluated the ability of a mixture of three bacteria to colonize and induce a beneficial response on the pasture crop annual ryegrass. Pseudomonas G1Dc10 and Paenibacillus G3Ac9 were previously isolated from annual ryegrass and were selected for their ability to perform multiple functions related to plant growth promotion. Sphingomonas azotifigens DSMZ 18530(T) was included due to nitrogen fixing ability...
May 2017: Microbiological Research
https://www.readbyqxmd.com/read/28279165/root-morphogenic-pathways-in-eucalyptus-grandis-are-modified-by-the-activity-of-protein-arginine-methyltransferases
#7
Krista L Plett, Anita E Raposo, Stephen Bullivant, Ian C Anderson, Sabine C Piller, Jonathan M Plett
BACKGROUND: Methylation of proteins at arginine residues, catalysed by members of the protein arginine methyltransferase (PRMT) family, is crucial for the regulation of gene transcription and for protein function in eukaryotic organisms. Inhibition of the activity of PRMTs in annual model plants has demonstrated wide-ranging involvement of PRMTs in key plant developmental processes, however, PRMTs have not been characterised or studied in long-lived tree species. RESULTS: Taking advantage of the recently available genome for Eucalyptus grandis, we demonstrate that most of the major plant PRMTs are conserved in E...
March 9, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28277973/an-ancient-transcriptional-regulatory-module-for-tip-growth-has-been-conserved-throughout-the-vascular-plant-lineage
#8
Hyung-Taeg Cho
The root hair development of vascular plants can be divided into two major processes, fate determination and hair morphogenesis, and the latter should be governed by the former so as to express the morphogenetic toolkits in a root hair-specific manner. Vascular plants, depending on taxa, show different fate-determining mechanisms for hair cell/non-hair cell fates, which leads to a question whether the downstream mophogenetic regulatory module is diverged accordingly to the upstream fate determiners or not. Our study demonstrates that the module of a transcription factor and a root hair-specific cis-element (RHE) for root hair-specific expression of morphogenetic toolkit genes is conserved in spite of different fate-determing mechanisms...
February 17, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28270193/cutaneous-neurogenic-inflammation-in-the-sensitized-acupoints-induced-by-gastric-mucosal-injury-in-rats
#9
Wei He, Xiao-Yu Wang, Hong Shi, Wan-Zhu Bai, Bin Cheng, Yang-Shuai Su, Xiao-Chun Yu, Xiang-Hong Jing, Bing Zhu
BACKGROUND: In acupuncture practice, the most important step is to confirm the location of a sensitized acupoint which reflects a diagnosis and can be stimulated with a specialized needle to treat the disease. Abnormal symptoms such as hyperalgesia or allodynia at the sensitized acupoints in patients with visceral disorders are considered to be in relation with referred pain and neurogenic inflammation. Yet, limited study has investigated the cutaneous neurochemical changes of the sensitized acuponits...
March 7, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28266599/double-stranded-rna-induces-inflammation-via-the-nf-%C3%AE%C2%BAb-pathway-and-inflammasome-activation-in-the-outer-root-sheath-cells-of-hair-follicles
#10
Jung-Min Shin, Dae-Kyoung Choi, Kyung-Cheol Sohn, Soo-Yeon Kim, Jeong Min Ha, Young Ho Lee, Myung Im, Young-Joon Seo, Chang Deok Kim, Jeung-Hoon Lee, Young Lee
Alopecia areata (AA), a chronic, relapsing, hair-loss disorder, is considered to be a T cell-mediated autoimmune disease. It affects approximately 1.7% of the population, but its precise pathogenesis remains to be elucidated. Despite the recent attention focused on the roles of inflammasomes in the pathogenesis of autoinflammatory diseases, little is known about inflammasome activation in AA. Thus, in this study, we investigated the pattern of NLRP3 inflammasome activation in the outer root sheath (ORS) cells of hair follicles...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28266050/cutaneous-dermal-non-neural-granular-cell-tumor-is-a-granular-cell-dermal-root-sheath-fibroma
#11
Angel Fernandez-Flores, David S Cassarino, Erica Riveiro-Falkenbach, José Luis Rodriguez-Peralto, Maria Teresa Fernandez-Figueras, Carlos Monteagudo
Dermal non-neural granular cell tumor (NNGCT) was first described in 1991 as an S100-negative polypoid non-melanocytic tumor. Although originally introduced in the literature as a primary cutaneous tumor, it was later emphasized that such qualification could not be held until the line of differentiation was clarified. It was also demonstrated that not all cases were polypoid. In the current study we try to further characterize this entity by presenting five cases of NNGCT. As expected, not all of them were polypoid...
March 7, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28259916/notch-signaling-is-significantly-suppressed-in-basal-cell-carcinomas-and-activation-induces-basal-cell-carcinoma-cell-apoptosis
#12
Feng-Tao Shi, Mei Yu, David Zloty, Robert H Bell, Eddy Wang, Noushin Akhoundsadegh, Gigi Leung, Anne Haegert, Nicholas Carr, Jerry Shapiro, Kevin J McElwee
A subset of basal cell carcinomas (BCCs) are directly derived from hair follicles (HFs). In some respects, HFs can be defined as 'ordered' skin appendage growths, while BCCs can be regarded as 'disordered' skin appendage growths. The aim of the present study was to examine HFs and BCCs to define the expression of common and unique signaling pathways in each skin appendage. Human nodular BCCs, along with HFs and non‑follicular skin epithelium from normal individuals, were examined using microarrays, qPCR, and immunohistochemistry...
February 2, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28257948/cadmium-induced-changes-in-vacuolar-aspects-of-arabidopsis-thaliana
#13
Shanti S Sharma, Kotaro Yamamoto, Kohei Hamaji, Miwa Ohnishi, Aya Anegawa, Shashi Sharma, Sveta Thakur, Vijay Kumar, Tomohiro Uemura, Akihiko Nakano, Tetsuro Mimura
We have examined the changes due to Cd treatment in the vacuolar form in root tip cortical cells in Arabidopsis thaliana employing a transformant with GFP fused to a tonoplast protein. A Cd-induced enhancement in complexity with general expansion of vacuolar system within 24 h was evident. The changes in the vacuolar form were dependent on the applied Cd concentrations. Concomitantly, as revealed through dithizone staining, Cd accumulated in the seedling roots exhibiting abundance of Cd-dithizone complexes in root tip, root hairs and vasculature...
February 23, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28244687/vegf165-induces-differentiation-of-hair-follicle-stem-cells-into-endothelial-cells-and-plays-a-role-in-in-vivo-angiogenesis
#14
Renfu Quan, Weibin Du, Xuan Zheng, Shichao Xu, Qiang Li, Xing Ji, Ximei Wu, Rongxue Shao, Disheng Yang
Within the vascular endothelial growth factor (VEGF) family of five subtypes, VEGF165 secreted by endothelial cells has been identified to be the most active and widely distributed factor that plays a vital role in courses of angiogenesis, vascularization and mesenchymal cell differentiation. Hair follicle stem cells (HFSCs) can be harvested from the bulge region of the outer root sheath of the hair follicle and are adult stem cells that have multi-directional differentiation potential. Although the research on differentiation of stem cells (such as fat stem cells and bone marrow mesenchymal stem cells) to the endothelial cells has been extensive, but the various mechanisms and functional forms are unclear...
February 28, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28244441/effects-of-organic-ligands-on-pb-absorption-and-speciation-changes-in-arabidopsis-as-determined-by%C3%A2-micro-x-ray-fluorescence-and-x-ray-absorption-near-edge-structure-analysis
#15
Ya Ting Shen, Yu Fang Song
Pb can pass through the food chain via plants and threaten human health, which has attracted widespread attention. Changes in Pb speciation affect its bioavailability in soils and water. However, whether organic ligands can change the uptake and mobility of Pb in plants and increase or decrease Pb bioavailability remains uncertain. To reveal the roles of organic and inorganic Pb in Pb metabolism in plants, the localization and speciation changes of Pb in Arabidopsis thaliana plants grown in organic and inorganic Pb were characterized by synchrotron radiation micro X-ray fluorescence and X-ray absorption near-edge structure, respectively...
March 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/28241097/the-gmfwl1-fw2-2-like-nodulation-gene-encodes-a-plasma-membrane-microdomain-associated-protein
#16
Zhenzhen Qiao, Laurent Brechenmacher, Benjamin Smith, Gregory W Strout, William Mangin, Christopher Taylor, Scott D Russell, Gary Stacey, Marc Libault
The soybean gene GmFWL1 (FW2.2-like1) belongs to a plant-specific family that includes the tomato FW2-2 and the maize CNR1 genes, two regulators of plant development. In soybean, GmFWL1 is specifically expressed in root hair cells in response to rhizobia and in nodules. Silencing of GmFWL1 expression significantly reduced nodule numbers supporting its role during soybean nodulation. While the biological role of GmFWL1 has been described, its molecular function and, more generally, the molecular function of plant FW2...
February 27, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28218299/expression-and-distribution-of-extensins-and-agps-in-susceptible-and-resistant-banana-cultivars-in-response-to-wounding-and-fusarium-oxysporum
#17
Yunli Wu, Wei Fan, Xiaoquan Li, Houbin Chen, Tomáš Takáč, Olga Šamajová, Musana Rwalinda Fabrice, Ling Xie, Juan Ma, Jozef Šamaj, Chunxiang Xu
Banana Fusarium wilt caused by Fusarium oxysporum f. sp. cubense (Foc) is soil-borne disease of banana (Musa spp.) causing significant economic losses. Extensins and arabinogalactan proteins (AGPs) are cell wall components important for pathogen defence. Their significance for Foc resistance in banana was not reported so far. In this study, two banana cultivars differing in Foc sensitivity were used to monitor the changes in transcript levels, abundance and distribution of extensins and AGPs after wounding and Foc inoculation...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28217548/polygonum-multiflorum-root-extract-as-a-potential-candidate-for-treatment-of-early-graying-hair
#18
Nguyen Dinh Thang, Pham Ngoc Diep, Pham Thi Huong Lien, Le Thi Lien
Despite Polygonum multiflorum (PM) has been experiencely used as a drug to treat early graying hair phenomenon in Asian countries for a long time, there is limited study examined the real biological effects of PM on hair graying in vitro and in vivo. In this study, we investigated the effects of PM root extract (PM-RE) on melanin synthesis in human melanoma SKMEL-28 cells and embryos/larvae of wild-type strain AB zebrafish. We also preliminary revealed the molecular mechanism of early hair graying phenomenon in both in vitro and in vivo models...
January 2017: Journal of Advanced Pharmaceutical Technology & Research
https://www.readbyqxmd.com/read/28213361/a-histone-chaperone-and-a-specific-transcription-factor-modulate-glabra2-expression-in-root-hair-development
#19
EDITORIAL
Jennifer Mach
No abstract text is available yet for this article.
February 2017: Plant Cell
https://www.readbyqxmd.com/read/28205242/one-way-or-another-iron-uptake-in-plants
#20
Huei-Hsuan Tsai, Wolfgang Schmidt
Iron (Fe) and phosphorus (P), the latter taken up by plants as phosphate (Pi), are two essential nutrients that determine species distribution and often limit crop yield as a result of their low availability in most soils. Pi-deficient plants improve the interception of Pi by increasing the density of root hairs, thereby expanding the volume of soil to be explored. The increase in root hair frequency results mainly from attenuated primary root growth, a process that was shown to be dependent on the availability of external Fe...
February 16, 2017: New Phytologist
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