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https://www.readbyqxmd.com/read/29334470/heterologous-expression-of-rhizobial-celc2-cellulase-impairs-symbiotic-signaling-and-nodulation-in-medicago-truncatula
#1
Marta Robledo, Esther Menéndez, Jose Ignacio Jimenez-Zurdo, Raúl Rivas, Encarna Velazquez, Eustoquio Martinez-Molina, Giles Oldroyd, Pedro F Mateos
The infection of legume plants by rhizobia is tightly regulated to ensure accurate bacterial penetration, infection and development of functionally efficient nitrogen-fixing root nodules. Rhizobial Nod Factors (NF) have key roles in the elicitation of nodulation signalling. Infection of white clover roots also involves the tightly regulated specific breakdown of the non-crystalline apex of cell walls in growing root hairs, which is mediated by Rhizobium leguminosarum bv. trifolii cellulase CelC2. Here, we have analyzed the impact of this endoglucanase on symbiotic signalling in the model legume Medicago truncatula...
January 15, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29334164/clinical-evaluation-of-a-novel-fractional-radiofrequency-device-for-hair-growth-fractional-radiofrequency-for-hair-growth-stimulation
#2
Ines Verner, Torello Lotti
AGA is a common disorder. Different treatments are available to prevent hair loss and achieve hair growth with variable results. The purpose of the present study was to evaluate the efficacy and safety of a novel fractional radiofrequency (RF) device (HairLux, Innogen Technologies Ltd., Yokneam, Israel), to prevent hair loss and induce hair growth. Twenty-five patients received 10 fractional RF treatments every 2 weeks, and were followed up 2 months after the last treatment. All patients were evaluated by global photography...
January 15, 2018: Dermatologic Therapy
https://www.readbyqxmd.com/read/29332275/impact-of-drought-stress-induced-by-polyethylene-glycol-on-growth-water-relations-and-cell-viability-of-norway-spruce-seedlings
#3
Ilya E Zlobin, Yury V Ivanov, Alexander V Kartashov, Vladimir V Kuznetsov
We investigated physiological responses of 7-week-old Norway spruce seedlings to water deficits of different intensities. Hydroponically grown seedlings were subjected to mild (-0.15 MPa), strong (-0.5 and -1.0 MPa) and extreme (-1.5 MPa) water deficit induced by polyethylene glycol 6000, and their growth parameters, water status and physiological activity were analyzed. Seedlings effectively restricted water loss under drought, and even under extreme water deficit, shoot relative water content did not fall below 85%...
January 5, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29331373/establishment-and-characterization-of-five-immortalized-human-scalp-dermal-papilla-cell-lines
#4
Mi Hee Kwack, Jung Min Yang, Gong Hee Won, Moon Kyu Kim, Jung Chul Kim, Young Kwan Sung
Dermal papilla (DP) regulates the growth and cycling of hair follicles. Cultured DP cells are useful for the study of their role in relation to hair growth and regeneration. However, cultivation of human DP cells is tedious and difficult. In addition, cultured DP cells possess a relatively short replicative life span, requiring immortalized human DP cell lines. We previously established an immortalized human DP cell line, SV40T-hTERT-DPC, by introducing human telomerase reverse transcriptase (hTERT) gene into the transformed cell line, SV40T-DPC...
January 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29327704/emerging-nonmetabolic-functions-of-skin-fat
#5
REVIEW
Christian F Guerrero-Juarez, Maksim V Plikus
Although the major white adipose depots evolved primarily to store energy, secrete hormones and thermo-insulate the body, multiple secondary depots developed additional specialized and unconventional functions. Unlike any other fat tissue, dermal white adipose tissue (dWAT) evolved a large repertoire of novel features that are central to skin physiology, which we discuss in this Review. dWAT exists in close proximity to hair follicles, the principal appendages of the skin that periodically grow new hairs. Responding to multiple hair-derived signals, dWAT becomes closely connected to cycling hair follicles and periodically cycles itself...
January 12, 2018: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/29321681/in-vivo-monitoring-of-hair-cycle-stages-via-bioluminescence-imaging-of-hair-follicle-ng2-cells
#6
Yasuhisa Tamura, Kumi Takata, Asami Eguchi, Yosky Kataoka
Hair growth occurs periodically in a cycle that consists of three different phases: growth, regression, and resting. The length of each phase is regulated by both intrinsic and extrinsic factors throughout life, and influenced by physiological and pathological conditions. Elongation of the resting phase and shortening of the growth phase occur during physiological ageing and in baldness, respectively. In vivo discrimination of each phase of the hair cycle can be used to research for regeneration of hair follicles as well as to evaluate the efficacy of hair regrowth treatments in the same individual...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320989/expression-of-vimentin-in-hair-follicle-growth-cycle-of-inner-mongolian-cashmere-goats
#7
Nai Rile, Zhihong Liu, Lixia Gao, Jingkai Qi, Meng Zhao, Yuchun Xie, Rui Su, Yanjun Zhang, Ruijun Wang, Jie Li, Hongmei Xiao, Jinquan Li
BACKGROUND: The growth of Inner Mongolian Cashmere goat skin hair follicle exhibits a periodic growth pattern. The hair growth cycle is distinguished as telogen, anagen, and catagen stages. The role of vimentin in the growth process of hair follicles is evident. To elucidate the mechanism underlying the vimentin activity in the growth cycle of hair follicles, transcriptome sequencing and liquid chromatography-tandem mass spectrometry were used to obtain the nucleic acid and amino acid sequences of VIIM gene and vimentin...
January 10, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29319439/successful-management-of-minoxidil-toxicosis-in-a-dog
#8
Tyler J M Jordan, Page E Yaxley, Christine A Culler, Anusha Balakrishnan
CASE DESCRIPTION A 2-year-old sexually intact female mixed-breed dog was evaluated at an emergency hospital approximately 5 hours after ingestion of an unknown amount of over-the-counter topical hair growth promoter containing 5% minoxidil foam. Vomiting and signs of lethargy were reported by the owner, and physical examination revealed tachycardia and hypotension. No treatments were performed, and the dog was transferred to a veterinary referral hospital for management of suspected minoxidil toxicosis. CLINICAL FINDINGS On arrival at the referral hospital, the dog was tachycardic (heart rate, 200 to 220 beats/min) and hypotensive (systolic arterial blood pressure, 70 mm Hg)...
January 15, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29319278/the-use-of-minoxidil-in-the-treatment-of-male-and-female-androgenetic-alopecia-a-story-of-more-than-30-years
#9
Mauro Barbareschi
Even if minoxidil has been known for over 30 years as "hair growth stimulator" the precise mechanism of its action is not completely elucitated. Minoxidil shortens telogen, accelerates telogen-exogen phase and causes the premature entry of resting hair follicles into anagen phase. Moreover, minoxidil increases hair follicle size. A large part of hair treatment scientific literature confirms the efficacy of topically applied minoxidil in humans. In particular, patients treated with minoxidil showed a significant increase in "non vellus" hair count starting from baseline...
February 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29307854/evidence-of-post-transcriptional-readthrough-regulation-in-fgf5-gene-of-alpaca
#10
Stefano Pallotti, Dario Pediconi, Dharaneedharan Subramanian, María Gabriela Molina, Marco Antonini, Maria Beatrice Morelli, Carlo Renieri, Antonietta La Terza
Two different phenotypes are described in alpaca, identified as suri and huacaya, which differ in the type of fleece. The huacaya fleece is characterized by compact, soft and highly crimped fibers, while the suri fleece is longer, straight, less-crimped and lustrous. In our study, the Fibroblast growth factor 5 (FGF5) was investigated as a possible candidate gene for hair length in alpaca (Vicugna pacos). As previously identified in other mammals, our results show that the alpaca FGF5 gene gives rise to a short (FGF5S) and a long (FGF5) isoform...
January 4, 2018: Gene
https://www.readbyqxmd.com/read/29304231/buffered-delivery-of-phosphate-to-arabidopsis-alters-responses-to-low-phosphate
#11
Meredith T Hanlon, Swayamjit Ray, Patompong Saengwilai, Dawn Luthe, Jonathan P Lynch, Kathleen M Brown
Arabidopsis has been reported to respond to phosphate (Pi) stress by arresting primary root growth and increasing lateral root branching. We developed a system to buffer Pi availability to Arabidopsis in gel media systems by charging activated aluminum oxide particles with low and sufficient concentrations of Pi, based on previous work in horticultural and sand culture systems. This system more closely mimics soil chemistry and results in different growth and transcriptional responses to Pi stress compared with plants grown in standard gel media...
January 3, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29301952/the-deubiquitinase-otu5-regulates-root-responses-to-phosphate-starvation
#12
Der-Fen Suen, Yi-Hsiu Tsai, Ya-Tan Cheng, Ramalingam Radjacommare, Ram Nivas Ahirwar, Hongyong Fu, Wolfgang Schmidt
Phosphorus, taken up by plants as inorganic phosphate (Pi), is an essential but often growth-limiting mineral nutrient for plants. As part of an orchestrated response to improve its acquisition, insufficient Pi supply triggers alterations in root architecture and epidermal cell morphogenesis. Mutants defective in the expression of the OVARIAN TUMOR DOMAIN-CONTAINING DEUBIQUITINATING ENZYME5 (OTU5) exhibited a constitutive Pi deficiency root phenotype, comprising the formation of long and dense root hairs and attenuated primary root growth...
January 4, 2018: Plant Physiology
https://www.readbyqxmd.com/read/29301366/in-bps1-downregulated-roots-the-bypass1-signal-disrupts-the-induction-of-cortical-cell-divisions-in-bean-rhizobium-symbiosis
#13
Manoj-Kumar Arthikala, Kalpana Nanjareddy, Miguel Lara
BYPASS1 (BPS1), which is a well-conserved gene in plants, is required for normal root and shoot development. In the absence of BPS1 gene function, Arabidopsis overproduces a mobile signalling compound (the BPS1 signal) in roots, and this transmissible signal arrests shoot growth and causes abnormal root development. In addition to the shoot and root meristem activities, the legumes also possess transient meristematic activity in root cortical cells during Rhizobium symbiosis. We explored the role of Phaseolus vulgaris BPS1 during nodule primordium development using an RNA-interference (RNAi) silencing approach...
January 3, 2018: Genes
https://www.readbyqxmd.com/read/29298425/hair-follicle-development-in-mouse-pluripotent-stem-cell-derived-skin-organoids
#14
Jiyoon Lee, Robert Bӧscke, Pei-Ciao Tang, Byron H Hartman, Stefan Heller, Karl R Koehler
The mammalian hair follicle arises during embryonic development from coordinated interactions between the epidermis and dermis. It is currently unclear how to recapitulate hair follicle induction in pluripotent stem cell cultures for use in basic research studies or in vitro drug testing. To date, generation of hair follicles in vitro has only been possible using primary cells isolated from embryonic skin, cultured alone or in a co-culture with stem cell-derived cells, combined with in vivo transplantation...
January 2, 2018: Cell Reports
https://www.readbyqxmd.com/read/29295567/minoxidil-induction-of-vegf-is-mediated-by-inhibition-of-hif-prolyl-hydroxylase
#15
Soohwan Yum, Seongkeun Jeong, Dohoon Kim, Sunyoung Lee, Wooseong Kim, Jin-Wook Yoo, Jung-Ae Kim, Oh Sang Kwon, Dae-Duk Kim, Do Sik Min, Yunjin Jung
The topical application of minoxidil may achieve millimolar concentrations in the skin. We investigated whether millimolar minoxidil could induce vascular endothelial growth factor (VEGF), a possible effector for minoxidil-mediated hair growth, and how it occurred at the molecular level. Cell-based experiments were performed to investigate a molecular mechanism underlying the millimolar minoxidil induction of VEGF. The inhibitory effect of minoxidil on hypoxia-inducible factor (HIF) prolyl hydroxylase-2 (PHD-2) was tested by an in vitro von Hippel-Lindau protein (VHL) binding assay...
December 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29290943/analyzing-the-innate-immunity-of-nih-hairless-mice-and-the-impact-of-gut-microbial-polymorphisms-on-listeria-monocytogenes-infection
#16
Zhong-Hao Ji, Wen-Zhi Ren, Wei Gao, Yang Hao, Wei Gao, Jian Chen, Fu-Shi Quan, Jin-Ping Hu, Bao Yuan
Spontaneous mutant hairless (HL) mice are often used to study hair growth and hair follicle development, and they often exhibit immune dysfunctions. Listeria monocytogenes, an important food-borne bacterium, has been used in animal models to study immune responses to infection. Herein, we analyzed the innate immunity of HL mice and the impact of gut microbial polymorphisms on L. monocytogenes infection. Compared to NIH mice, NIH HL mice were more susceptible to L. monocytogenes, as weight losses, mortality, bacterial load, and histopathological lesions were more severe; the decrease in monocytes may be an important underlying reason...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29287763/topically-applied-nicotinamide-inhibits-human-hair-follicle-growth-ex-vivo
#17
Iain S Haslam, Jonathan A Hardman, Ralf Paus
No abstract text is available yet for this article.
December 26, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29286826/systematic-review-of-low-level-laser-therapy-for-adult-androgenic-alopecia
#18
Sean W Delaney, Paul Zhang
Alopecia is a common disorder affecting over half of the world's population. Within this condition, androgenic alopecia (AA) is the most common type, affecting 50% of males over 40 and 75% of females over 65. Anecdotal paradoxical hypertrichosis noted during laser epilation has generated interest in the possibility of using laser to stimulate hair growth. In this study, we aimed to critically appraise the application of low-level laser therapy for the treatment of AA in adults. A systematic review was performed on studies identified on Medline, EMBASE, Cochrane database, and clinicaltrials...
December 29, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29282559/characterization-of-the-rice-nla-family-reveals-a-key-role-for-osnla1-in-phosphate-homeostasis
#19
Jian Yang, Lan Wang, Chuanzao Mao, Honghui Lin
BACKGROUND: Phosphate (Pi), an essential mineral nutrient for plant development and reproduction, is one of the main components of fertilizers in modern agriculture. Previous research demonstrated that AtNLA1 mediates ubiquitination of Pi transporters in the plasma membrane and triggers their endocytosis and degradation in Arabidopsis. In this study, we researched the function of NLA homologous proteins in Pi homeostasis in rice. FINDINGS: Two OsNLA homologs from rice (Oryza sativa L...
December 28, 2017: Rice
https://www.readbyqxmd.com/read/29273862/heterorhizy-and-fine-root-architecture-of-rabbiteye-blueberry-vaccinium-virgatum-softwood-cuttings
#20
Takashi Baba, Satoshi Nakaba, Satoshi Noma, Ryo Funada, Takuya Ban
All fine root systems consist of individual fine roots. Individual roots have morphological, anatomical, and functional heterogeneity (heterorhizy). Heterorhizy plays crucial roles in plant ecosystems. However, in many species, the heterorhizy and fine root system architecture based on individual root units are unclear. This study investigated heterorhizy along the root system architecture of Vaccinium virgatum Ait (rabbiteye blueberry) softwood-cuttings (propagated from annual shoots in growing season) using protoxylem groups (PGs), a classification according to the number of protoxylem poles, as an indicator of individual root traits...
December 22, 2017: Journal of Plant Research
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