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https://www.readbyqxmd.com/read/28535568/tianeptine-reduces-mechanical-allodynia-in-spinal-nerve-ligated-and-chemotherapy-induced-neuropathic-mice
#1
Seong Min Han, Young Hoon Kim, Hyeon Uk Jo, Jung Ah Kwak, Hue Jung Park
BACKGROUND: Spinal nerve-ligated neuropathy and chemotherapy-induced neuropathy produce a persistent tactile allodynia in mice. Tianeptine is an antidepressant that exhibits structural similarities to tricyclic antidepressants but has distinct neurochemical properties. OBJECTIVE: Here we examined the effects of intraperitoneal (i.p.) tianeptine on allodynia in spinal nerve-ligated and chemotherapy-induced neuropathic mice. STUDY DESIGN: A randomized, experimental trial...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28535564/the-different-dynamic-changes-of-nerve-growth-factor-in-the-dorsal-horn-and-dorsal-root-ganglion-leads-to-hyperalgesia-and-allodynia-in-diabetic-neuropathic-pain
#2
Zhifeng Gao, Yi Feng, Hui Ju
BACKGROUND: Diabetic peripheral neuropathy (DPN) is the most common complication of diabetes and more than half of the patients with DPN have self-reported symptoms referring to painful diabetic neuropathy (PDN). Nerve growth factor (NGF) is a key factor for the nervous system, but the role of it in the neuropathic pain of diabetic patients is unclear. OBJECTIVE: This study aimed to investigate the relationship between the dynamic expression of NGF in dorsal horn and dorsal root ganglion (DRG) of diabetic rats and hyperalgesia and allodynia in diabetic neuropathic pain...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28534946/differentiation-of-nestin%C3%A2-negative-human-hair-follicle-outer-root-sheath-cells-into-neurons-in%C3%A2-vitro
#3
Wei Wu, Xiao-Li Wu, Yu-Qing Ji, Zhen Gao
A specialized quiescent population of hair follicle stem cells, residing in the hair follicle outer root sheath cells (ORSCs), has previously demonstrated pluripotency for differentiation into neural stem cells (NSCs). A previous study indicated that nestin‑positive hair follicle ORSCs are able to differentiate into neurons. However, little has been reported on the isolation of nestin‑negative human ORSCs and whether they can successfully differentiate into neurons in vitro. In the present study, nestin‑positive ORSCs were significantly reduced with a prolonged incubation time in vitro...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28526412/adaptor-proteins-gir1-and-gir2-ii-interaction-with-the-co-repressor-topless-and-promotion-of-histone-deacetylation-of-target-chromatin
#4
Renhong Wu, Vitaly Citovsky
Understanding how root hair development is controlled is important for understanding of many fundamental aspects of plant biology. Previously, we identified two plant-specific adaptor proteins GIR1 and GIR2 that interact with the major regulator of root hair development GL2 and suppress formation of root hair. Here, we show that GIR1 and GIR2 also interact with the co-repressor TOPLESS (TPL). This interaction required the GIR1 protein EAR motif, and was essential for the transcriptional repressor activity of GIR1...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28526410/adaptor-proteins-gir1-and-gir2-i-interaction-with-the-repressor-glabra2-and-regulation-of-root-hair-development
#5
Renhong Wu, Vitaly Citovsky
Plants use specialized root outgrowths, termed root hairs, to enhance acquisition of nutrients and water, help secure anchorage, and facilitate interactions with soil microbiome. One of the major regulators of this process is GLABRA2 (GL2), a transcriptional repressor of root hair differentiation. However, regulation of the GL2-function is relatively well characterized, it remains completely unknown whether GL2 itself functions in complex with other transcriptional regulators. We identified GIR1 and GIR2, a plant-specific two-member family of closely related proteins that interact with GL2...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28505371/the-arm-domain-of-armadillo-repeat-kinesin-1-is-not-required-for-microtubule-catastrophe-but-can-negatively-regulate-nima-related-kinase-6-in-arabidopsis-thaliana
#6
Ryan C Eng, Laryssa S Halat, Samuel J Livingston, Tatsuya Sakai, Hiroyasu Motose, Geoffrey Wasteneys
Microtubules are dynamic filaments, the assembly and disassembly of which are under precise control of various associated proteins, including motor proteins and regulatory enzymes. In Arabidopsis thaliana, two such proteins are the ARMADILLO-REPEAT KINESIN 1 (ARK1), which promotes microtubule disassembly, and the NIMA-RELATED KINASE 6 (NEK6), which has a role in organizing microtubule arrays. Previous yeast 2-hybrid and in vitro pull-down assays determined that NEK6 can interact with ARK1 through the latter protein's Armadillo-repeat (ARM) cargo domain...
May 13, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28493504/imaging-sonographic-findings-of-in-a-case-of-proliferating-trichilemmal-tumor-of-a-finger-a-case-report
#7
Ki Eon Kwon, Seon-Jeong Kim, Joo Hak Kim, Yoon Yang Jung, Noh Hyuck Park, Ji Yeon Park, Kyung A Kang, Soo Heui Baek
Proliferating trichilemmal tumor (PTT) is a rare tumor that originates from the outer root sheath of a hair follicle. About 90% of PTTs occur on the scalp. The sonographic findings of PTT in the subungual region have not been reported previously. In our case, sonography showed a heterogeneous mass containing echogenic foci with no detectable intratumoral vascularity. These echogenic foci probably represent keratin and cholesterol. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound, 2017.
May 11, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28492437/continuous-intrathecal-infusion-of-cannabinoid-receptor-agonists-attenuates-nerve-ligation-induced-pain-in-rats
#8
Sheng-Jie Shiue, Hsien-Yu Peng, Chung-Ren Lin, Shih-Wei Wang, Ruey-Horng Rau, Jen-Kun Cheng
BACKGROUND AND OBJECTIVES: Cannabinoid receptors (CB1R/CB2R) are known to play important roles in pain transmission. In this study, we investigated the effects of continuous intrathecal infusion of CB1/2R agonists in the L5/6 spinal nerve ligation pain model. METHODS: Under isoflurane anesthesia, rats received nerve ligation and intrathecal catheter connected to an infusion pump. After surgery, saline (1 μL/h), CB1/2R agonist WIN55,212-2, CB1R agonist ACEA, or CB2R agonist AM1241 (1 μmol/h) was given intrathecally for 7 days...
May 10, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28487479/the-prenylated-rab-gtpase-receptor-pra1-f4-contributes-to-protein-exit-from-the-golgi-apparatus
#9
Myounghui Lee, Yun-Joo Yoo, Dae Heon Kim, Nguyen Hong Hanh, Yun Kwon, Inhwan Hwang
Prenylated Rab acceptor 1 (PRA1) functions in the recruitment of prenylated Rab proteins to their cognate organelles. Arabidopsis contains a large number of proteins belonging to the AtPRA1 family. However, their physiological roles remain largely unknown. Herein, we investigated the physiological role of AtPRA1.F4, a member of the AtPRA1 family. A T-DNA insertion knock-down mutant of AtPRA1.F4, atpra1.f4, was smaller in stature than parent plants and possessed shorter roots, whereas transgenic plants overexpressing HA:AtPRA1...
May 9, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28487476/diversification-of-root-hair-development-genes-in-vascular-plants
#10
Ling Huang, Xinhui Shi, Wenjia Wang, Kook Hui Ryu, John Schiefelbein
The molecular genetic program for root hair development has been intensively studied in Arabidopsis. To understand the extent to which this program might operate in other plants, we conducted a large-scale comparative analysis of root hair development genes from diverse vascular plants, including eudicots, monocots, and a lycophyte. Combining phylogenetics and transcriptomics, we discovered conservation of a core set of root hair genes across all vascular plants, which may derive from an ancient program for unidirectional cell growth coopted for root hair development during vascular plant evolution...
May 9, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28487046/rsl4-takes-control-multiple-signals-one-transcription-factor
#11
Eliana Marzol, Cecilia Borassi, Silvina Paola Denita Juárez, Silvina Mangano, José M Estevez
Root hair growth dramatically expands the root surface area, thus facilitating water and nutrient uptake. Until recently, the molecular mechanism underlying root hair growth was unknown. Recent studies have revealed that the transcription factor ROOT HAIR DEFECTIVE 6 LIKE 4 (RSL4) coordinates hormonal, environmental, and developmental factors to trigger polar growth.
May 6, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28481096/cuo-and-zno-nanoparticles-modify-interkingdom-cell-signaling-processes-relevant-to-crop-production-a-review
#12
Anne Anderson, Joan E McLean, Astrid Rosa Jacobson, David Britt
As the world population increases, strategies for sustainable agriculture are needed to fulfill the global need for plants for food and other commercial products. Nanoparticle formulations are likely to be part of the developing strategies. CuO and ZnO nanoparticles (NPs) offer potential as fertilizers, as they provide bioavailable essential metals, and as pesticides, because of dose-dependent toxicity. Effects of these metal oxide NPs on rhizosphere functions are the focus of this review. These NPs at doses of 10 mg metal/kg and above change production of key metabolites involved in plant protection in a root-associated microbe, Pseudomonas chlororaphis O6...
May 8, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28469280/capability-of-tip-growing-plant-cells-to-penetrate-into-extremely-narrow-gaps
#13
Naoki Yanagisawa, Nagisa Sugimoto, Hideyuki Arata, Tetsuya Higashiyama, Yoshikatsu Sato
Plant cells are covered with rigid cell walls, yet tip-growing cells can elongate by providing new cell wall material to their apical regions. Studies of the mechanical properties of tip-growing plant cells typically involve measurement of the turgor pressure and stiffness of the cells' apical regions. These experiments, however, do not address how living tip-growing cells react when they encounter physical obstacles that are not substantially altered by turgor pressure. To investigate this issue, we constructed microfabricated platforms with a series of artificial gaps as small as 1 μm, and examined the capability of tip-growing plant cells, including pollen tubes, root hairs, and moss protonemata, to penetrate into these gaps...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28467152/the-interaction-between-glucose-and-cytokinin-signaling-in-controlling-arabidopsis-thaliana-seedling-root-growth-and-development
#14
Sunita Kushwah, Ashverya Laxmi
Cytokinin (CK) and glucose (GLC) control several common responses in plants. There is an extensive overlap between CK and GLC signal transduction pathways in Arabidopsis. Physiologically, both GLC and CK could regulate root length in light. CK interacts with GLC via HXK1 dependent pathway for root length control. Wild-type (WT) roots cannot elongate in the GLC free medium while CK-receptor mutant ARABIDOPSIS HISTIDINE KINASE4 (ahk4) and type B ARR triple mutant ARABIDOPSIS RESPONSE REGULATOR1, 10,11 (arr1, 10,11) roots could elongate even in the absence of GLC as compared with the WT...
May 3, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28463974/the-histological-characteristics-age-related-thickness-change-of-skin-and-expression-of-the-hsps-in-the-skin-during-hair-cycle-in-yak-bos-grunniens
#15
Xue Yang, Yan Cui, Jing Yue, Honghong He, Chuan Yu, Penggang Liu, Jun Liu, Xiandong Ren, Yun Meng
OBJECTIVE: This experiment was conducted to study the histological characteristics, age-related thickness changes, and expression of HSPs in the skin of yak. METHODS: A total of 20 yaks (10 males and 10 females) were used. Different regions of the normal skin of three different ages (newborn, half-year-old and adult) of yaks were harvested for histological study and thickness measurement. Biopsy samples were taken from the scapula regions of the skin from the same five approximately 1-year-old yaks during the hair cycle (telogen, anagen and catagen)...
2017: PloS One
https://www.readbyqxmd.com/read/28461488/molecular-link-between-auxin-and-ros-mediated-polar-growth
#16
Silvina Mangano, Silvina Paola Denita-Juarez, Hee-Seung Choi, Eliana Marzol, Youra Hwang, Philippe Ranocha, Silvia Melina Velasquez, Cecilia Borassi, María Laura Barberini, Ariel Alejandro Aptekmann, Jorge Prometeo Muschietti, Alejandro Daniel Nadra, Christophe Dunand, Hyung-Taeg Cho, José Manuel Estevez
Root hair polar growth is endogenously controlled by auxin and sustained by oscillating levels of reactive oxygen species (ROS). These cells extend several hundred-fold their original size toward signals important for plant survival. Although their final cell size is of fundamental importance, the molecular mechanisms that control it remain largely unknown. Here we show that ROS production is controlled by the transcription factor RSL4, which in turn is transcriptionally regulated by auxin through several auxin response factors (ARFs)...
May 1, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28459086/automated-tracking-of-root-for-confocal-time-lapse-imaging-of-cellular-processes
#17
Mehdi Doumane, Claire Lionnet, Vincent Bayle, Yvon Jaillais, Marie-Cécile Caillaud
Here we describe a protocol that enables to automatically perform time-lapse imaging of growing root tips for several hours. Plants roots expressing fluorescent proteins or stained with dyes are imaged while they grow using automatic movement of the microscope stage that compensates for root growth and allows to follow a given region of the root over time. The protocol makes possible the image acquisition of multiple growing root tips, therefore increasing the number of recorded mitotic events in a given experiment...
April 20, 2017: Bio-protocol
https://www.readbyqxmd.com/read/28457515/terminal-restriction-fragment-length-polymorphism-profiling-of-bacterial-flora-derived-from-single-human-hair-shafts-can-discriminate-individuals
#18
Eiji Nishi, Kota Watanabe, Yukihiro Tashiro, Kenji Sakai
Human hairs are the trace evidence most commonly encountered at many crime scenes. However, they have not been effectively utilized for actual criminal investigations because of the low accuracy of their morphological inspection, low detection rate of short tandem repeat (STR) typing, and the problem of heteroplasmy in mitochondrial DNA analysis. Here, we examined the possibility of individual discrimination by comparing profiles of bacterial flora on hair. We carried out the profiling of terminal restriction fragment length polymorphisms (T-RFLP) of the amplified bacterial 16S ribosomal RNA (rRNA) gene from hair samples...
March 2017: Legal Medicine
https://www.readbyqxmd.com/read/28445731/hair-follicle-terminal-differentiation-is-orchestrated-by-distinct-early-and-late-matrix-progenitors
#19
Arlee L Mesler, Natalia A Veniaminova, Madison V Lull, Sunny Y Wong
During development and regeneration, matrix progenitors undergo terminal differentiation to form the concentric layers of the hair follicle. These differentiation events are thought to require signals from the mesenchymal dermal papilla (DP); however, it remains unclear how DP-progenitor cell interactions govern specific cell fate decisions. Here, we show that the hair follicle differentiated layers are specified asynchronously, with early matrix progenitors initiating differentiation before surrounding the DP...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28444595/cloning-and-characterization-of-auxin-efflux-carrier-genes-ecpin1a-and-ecpin1b-from-finger-millet-eleusine-coracana-l
#20
Tapan Kumar Mohanta, Hanhong Bae
Auxin signaling events in plants play important role in developmental regulation as well as gravitropic responses and plays crucial role in the development of root, lateral root and root hairs. The gene that is known to be most important in the development of root, lateral root and root hairs is commonly known as auxin efflux carrier (PIN). Being commonly known as orphan plant, the genome sequence of Eleusine coracana is not known yet, and hence it was very difficult to conduct advanced research in root development in this plant...
May 2017: 3 Biotech
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