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https://www.readbyqxmd.com/read/28719725/effects-of-eupatilin-on-the-contractility-of-corpus-cavernosal-smooth-muscle-through-nitric-oxide-independent-pathways
#1
S H Choo, S W Lee, M R Chae, S J Kang, H H Sung, D H Han, J N Chun, J K Park, C Y Kim, H K Kim, I So
Eupatilin (5,7-dihydroxy-3,4,6-trimethoxyflavone) is one of the main compounds present in Artemisia species. Eupatilin has both antioxidative and anti-inflammatory properties and a relaxation effect on vascular contraction regardless of endothelial function. We evaluated the relaxant effects of eupatilin on the corpus cavernosum (CC) of rabbits and the underlying mechanisms of its activity in human corpus cavernosum smooth muscle (CCSM) cells. Isolated rabbit CC strips were mounted in an organ bath system. A conventional whole-cell patch clamp technique was used to measure activation of calcium-sensitive K(+) -channel currents in human CCSM cells...
July 18, 2017: Andrology
https://www.readbyqxmd.com/read/28719619/diagnostic-utility-of-corneal-confocal-microscopy-and-intra-epidermal-nerve-fibre-density-in-diabetic-neuropathy
#2
Uazman Alam, Maria Jeziorska, Ioannis N Petropoulos, Omar Asghar, Hassan Fadavi, Georgios Ponirakis, Andrew Marshall, Mitra Tavakoli, Andrew J M Boulton, Nathan Efron, Rayaz A Malik
OBJECTIVES: Corneal confocal microscopy (CCM) is a rapid, non-invasive, reproducible technique that quantifies small nerve fibres. We have compared the diagnostic capability of CCM against a range of established measures of nerve damage in patients with diabetic neuropathy. METHODS: In this cross sectional study, thirty subjects with Type 1 diabetes without neuropathy (T1DM), thirty one T1DM subjects with neuropathy (DSPN) and twenty seven non-diabetic healthy control subjects underwent detailed assessment of neuropathic symptoms and neurologic deficits, quantitative sensory testing (QST), electrophysiology, skin biopsy and corneal confocal microscopy (CCM)...
2017: PloS One
https://www.readbyqxmd.com/read/28717809/racial-differences-in-misclassification-of-healthy-eating-based-on-food-frequency-questionnaire-and-24-hour-dietary-recalls
#3
B Olendzki, E Procter-Gray, M F Magee, G Youssef, K Kane, L Churchill, J Ockene, W Li
OBJECTIVES: To examine the agreement in nutrient intake and alternate healthy eating indices (AHEI) between a self-administered Food Frequency Questionnaire (FFQ) and 24-hour recall (24HR) measurements of diet by race, among urban older women. DESIGN: Cross-sectional observational study. SETTING: Urban neighborhoods in Washington, DC, USA. PARTICIPANTS: Community-dwelling White and Black women aged 65 and older. MEASUREMENTS: In 2014 and 2015, 49 White and 44 Black older women were queried on diet using both FFQ and 24-hour recalls...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28717346/inflammatory-wnt5a-signalling-pathways-affecting-barrier-function-of-human-vascular-endothelial-cells
#4
Tom Skaria, Gabriele Schoedon
Wnt5A is a chemokine secreted by inflammatory-activated human macrophages that sustains their inflammatory response in an autocrine manner. High levels of Wnt5A are found in sera of patients with sepsis and septic shock. Here, we comment on recently reported Wnt5A signalling pathways in human vascular endothelial cells (VEC). In human VEC, Wnt5A regulates cytoskeleton remodelling and barrier function through Ryk receptor and Rho-associated protein serine/threonine kinase, targeting LIMK2 and CFL1 involved in actin polymerisation...
2017: Journal of Inflammation
https://www.readbyqxmd.com/read/28717226/safe-brain-tumor-resection-does-not-depend-on-surgery-alone-role-of-hemodynamics
#5
Stefanie Bette, Benedikt Wiestler, Felicitas Wiedenmann, Johannes Kaesmacher, Martin Bretschneider, Melanie Barz, Thomas Huber, Yu-Mi Ryang, Eberhard Kochs, Claus Zimmer, Bernhard Meyer, Tobias Boeckh-Behrens, Jan S Kirschke, Jens Gempt
Aim of this study was to determine if perioperative hemodynamics have an impact on perioperative infarct volume and patients' prognosis. 201 cases with surgery for a newly diagnosed or recurrent glioblastoma were retrospectively analyzed. Clinical data and perioperative hemodynamic parameters, blood tests and time of surgery were recorded. Postoperative infarct volume was quantitatively assessed by semiautomatic segmentation. Mean diastolic blood pressure (dBP) during surgery (rho -0.239, 95% CI -0.11 - -0...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717049/regulation-of-small-mitochondrial-dna-replicative-advantage-by-ribonucleotide-reductase-in-saccharomyces-cerevisiae
#6
Elliot Bradshaw, Minoru Yoshida, Feng Ling
Small mitochondrial genomes can behave as selfish elements by displacing wild-type genomes regardless of their detriment to the host organism. In the budding yeast Saccharomyces cerevisiae, small hypersuppressive mtDNA transiently co-exist with wild-type in a state of heteroplasmy, wherein the replicative advantage of the small mtDNA outcompetes wild-type and produces offspring without respiratory capacity in >95% of colonies. The cytosolic enzyme ribonucleotide reductase (RNR) catalyzes the rate-limiting step in dNTP synthesis and its inhibition has been correlated with increased petite colony formation, reflecting loss of respiratory function...
July 17, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28715583/tnf%C3%AE-induced-disruption-of-the-blood-retinal-barrier-in-vitro-is-regulated-by-intracellular-3-5-cyclic-adenosine-monophosphate-levels
#7
Anne-Eva van der Wijk, Ilse M C Vogels, Cornelis J F van Noorden, Ingeborg Klaassen, Reinier O Schlingemann
Purpose: Proinflammatory cytokines such as tumor necrosis factor (TNFα) may have a causative role in blood-retinal barrier (BRB) disruption, which is an essential step in the development of diabetic macular edema. The purpose of our study was to determine whether TNFα increases permeability in an in vitro model of the BRB and to explore the mechanisms involved. Methods: Primary bovine retinal endothelial cells (BRECs) were grown on Transwell inserts and cells were stimulated with TNFα or a combination of TNFα, IL1β, and VEGF...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28715526/using-rho-kinase-inhibitors-for-retinal-detachment-reply
#8
Matthew P Simunovic, Kanmin Xue, Robert E MacLaren
No abstract text is available yet for this article.
July 13, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28715522/using-rho-kinase-inhibitors-for-retinal-detachment
#9
Ellen Townes-Anderson, Ilene Sugino, Marco Zarbin
No abstract text is available yet for this article.
July 13, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28713502/the-effect-of-personality-traits-on-undergraduate-dental-students-performance-in-multiple-mini-interviews
#10
Lana Ahmed Shinawi, Sumer Madani Alaki, Ibrahim Yamany, Mona Hassan Ahmed Hassan
BACKGROUND: Multiple mini interviews (MMI) is a structured student selection method where applicants rotate around a series of stations that do not require previously learned knowledge. The Big Five Inventory (BFI) is a tool often used to measure personality traits commonly used in applicant selection. OBJECTIVE: The aim of the current study was to assess the effect of personality traits using the BFI on undergraduate dental students' performance in MMI. METHODS: This research was conducted at The Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia...
May 2017: Electronic Physician
https://www.readbyqxmd.com/read/28713049/patient-reported-outcomes-after-surgical-stabilization-of-spinal-tumors-symptom-based-validation-of-the-spinal-instability-neoplastic-score-sins-and-surgery
#11
Ibrahim Hussain, Ori Barzilai, Anne S Reiner, Natalie DiStefano, Lily McLaughlin, Shahiba Ogilvie, Mark Bilsky, Ilya Laufer
BACKGROUND CONTEXT: Neoplastic spinal instability is movement-related pain or neurologic compromise under physiologic loads with the Spinal Instability Neoplastic Score (SINS) developed to facilitate diagnosis. There is a paucity of evidence that mechanical instability correlates with patient-reported symptoms and that surgical stabilization significantly improves these patient-reported outcomes (PRO). PURPOSE: The objective of this study was to determine if SINS correlates with patient-reported preoperative pain and disability and if surgical stabilization significantly improves PRO...
July 13, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28712859/tyr42-phosphorylation-of-rhoa-gtpase-promotes-tumorigenesis-through-nuclear-factor-nf-%C3%AE%C2%BAb
#12
Jae-Gyu Kim, Kyoung-Chan Choi, Chang-Won Hong, Hwee-Seon Park, Eun-Kyoung Choi, Yong-Sun Kim, Jae-Bong Park
Dysregulation of reactive oxygen species (ROS) levels is implicated in the pathogenesis of several diseases, including cancer. However, the molecular mechanisms of ROS in tumorigenesis have not been clearly elucidated. Hydrogen peroxide activated nuclear factor-κB (NF-κB) and RhoA GTPase. In particular, we found that hydrogen peroxide phosphorylated RhoA at Tyr42 via Src. P-Ty42 residue of RhoA was a binding site of Vav2, a guanine nucleotide exchange factor (GEF) that activates p-Tyr42 RhoA. P-Tyr42 RhoA then bound to IκB kinase γ (IKKγ), leading IKKβ activation...
July 13, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28712722/cell-polarity-regulates-biased-myosin-activity-and-dynamics-during-asymmetric-cell-division-via-drosophila-rho-kinase-and-protein-kinase-n
#13
Anna Tsankova, Tri Thanh Pham, David Salvador Garcia, Fabian Otte, Clemens Cabernard
Cell and tissue morphogenesis depends on the correct regulation of non-muscle Myosin II, but how this motor protein is spatiotemporally controlled is incompletely understood. Here, we show that in asymmetrically dividing Drosophila neural stem cells, cell intrinsic polarity cues provide spatial and temporal information to regulate biased Myosin activity. Using live cell imaging and a genetically encoded Myosin activity sensor, we found that Drosophila Rho kinase (Rok) enriches for activated Myosin on the neuroblast cortex prior to nuclear envelope breakdown (NEB)...
July 7, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28712398/-fasudil-attenuates-mitochondrial-injury-and-apoptosis-in-rat-model-of-myocardial-ischemia-reperfusion-injury
#14
Hongwei Ye, Guanjun Zhang, Ruiping Cao, Pinfang Kang, Zhenghong Li, Qin Gao
Objective To observe the changes of mitochondria fusion protein 2 (Mfn2) and dynamin-related protein 1 (Drp1) in the cardioprotection of fasudil, and analyze the significance. Methods Hearts isolated from male Sprague-Dawley rats were subjected to ischemia for 30 minutes (occlusion of left anterior descending artery), and continuously perfusion for 120 minutes to establish myocardial ischemia/reperfusion (I/R) injury model. The rats were divided into 3 groups: sham group, I/R group and fasudil group. The left ventricular hemodynamics were continuously recorded; lactate dehydrogenase (LDH) content was measured during reperfusion; myocardial ultrastructure was observed by electron microscopy; the protein expression of phosphorylated protein phosphatase 1 regulatory subunit 12A (p-PPP1R12A/p-MYPT1) was detected by immunohistochemistry; and the protein expressions of Mfn2, Drp1 and cleaved caspase-3 (c-caspase-3) were detected by Western blot analysis...
July 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28712392/-protection-of-rho-associated-protein-kinase-inhibitor-y-27632-in-mrl-lpr-mice
#15
Yuanyuan Wang, Xiaoyun Jia, Qiyi Wang, Ming Ye, Yang Lu, Jiajia Zhang, Sheng Chen, Yanglei Li, Junying Wu, Changhao Xie
Objective To investigate the immunological effect of Rho-associated protein kinase inhibitor Y-27632 on MRL/lpr mice and explore its underlying mechanisms. Methods The study collected 10 wild-type C57BL/6 mice as normal controls and 20 MRL/lpr mice that were randomly assigned to MRL/lpr group and 5 mg/kg Y-27632-treated MRL/lpr group, with 10 mice in each group. Superoxide dismutase (SOD), methane dicarboxylic aldehyde (MDA), interleukin 6 (IL-6), IL-1β and tumor necrosis factor α (TNF-α) in the serum or spleen were detected by ELISA...
July 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28712029/good-clinical-results-but-moderate-osseointegration-and-defect-filling-of-a-cell-free-multi-layered-nano-composite-scaffold-for-treatment-of-osteochondral-lesions-of-the-knee
#16
Dominic T Mathis, Raphael Kaelin, Helmut Rasch, Markus P Arnold, Michael T Hirschmann
PURPOSE: The aim of this retrospective study was to evaluate the clinical and radiological results of a nano-composite multi-layered three-dimensional biomaterial scaffold for treatment of osteochondral lesions (OCL) of the knee. It was a particular radiological interest to analyse the osseointegration, filling of the defects and the bone tracer uptake (BTU), and it was hypothesised that this scaffold, which was created to mimic the entire osteo-cartilaginous unit, is integrated within the bone 12 months postoperatively and comes along with improved patients symptoms and function...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28712024/knee-hyperextension-does-not-adversely-affect-dynamic-in-vivo-kinematics-after-anterior-cruciate-ligament-reconstruction
#17
Kanto Nagai, Tom Gale, Elmar Herbst, Yasutaka Tashiro, James J Irrgang, Scott Tashman, Freddie H Fu, William Anderst
PURPOSE: To evaluate the effect of knee hyperextension on dynamic in vivo kinematics after anterior cruciate ligament reconstruction (ACL-R). METHODS: Forty-two patients underwent unilateral ACL-R. Twenty-four months after surgery, subjects performed level walking and downhill running on a treadmill while dynamic stereo radiographs were acquired at 100 (walking) and 150 Hz (running). Tibiofemoral motion was determined using a validated model-based tracking process, and tibiofemoral translations/rotations were calculated...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28711991/one-year-efficacy-of-adjunctive-use-of-ripasudil-a-rho-kinase-inhibitor-in-patients-with-glaucoma-inadequately-controlled-with-maximum-medical-therapy
#18
Hiroshi Inazaki, Satoshi Kobayashi, Yoko Anzai, Hisayoshi Satoh, Shimpei Sato, Maiko Inoue, Shin Yamane, Kazuaki Kadonosono
PURPOSE: The aim of this study was to evaluate the one-year efficacy, ability to lower intraocular pressure, and tolerability of ripasudil, a rho-kinase inhibitor, in patients with glaucoma inadequately controlled with maximum medical therapy. METHODS: This prospective, non-comparative, interventional case-series study included 39 patients with primary open-angle glaucoma inadequately controlled with maximum medical therapy before treatment with ripasudil. Ripasudil was administered twice per day as adjunctive therapy to ongoing glaucoma treatment...
July 15, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28711907/up-regulation-of-cit-promotes-the-growth-of-colon-cancer-cells
#19
Zehua Wu, Xiangying Zhu, Wendi Xu, Yu Zhang, Lin Chen, Fabo Qiu, Binyuan Zhang, Liqun Wu, Zhihai Peng, Huamei Tang
Colon cancer is one of the major causes of cancer mortality worldwide. However, the underlying mechanism and therapeutic targets of colon cancer have not yet been fully elucidated. In the present study, we demonstrate that citron rho-interacting, serine/threonine kinase 21 (CIT) promotes the growth of human colon cancer cells. CIT is overexpressed in human colon cancer tissues and cell lines. High expression of CIT predicts poor survival for patients with colon cancer. In colon cancer cells, CIT knockdown represses cellular proliferation and colony formation...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28710770/an-arabidopsis-kinase-cascade-influences-auxin-responsive-cell-expansion
#20
Tara A Enders, Elizabeth M Frick, Lucia C Strader
Mitogen-activated protein kinase (MPK) cascades are conserved mechanisms of signal transduction across eukaryotes. Despite the importance of MPK proteins in signaling events, specific roles for many Arabidopsis MPK proteins remain unknown. Multiple studies have suggested roles for MPK signaling in a variety of auxin-related processes. To identify MPK proteins with roles in auxin response, we screened mpk insertional alleles and identified mpk1-1 as a mutant that displays hypersensitivity in auxin-responsive cell expansion assays...
July 15, 2017: Plant Journal: for Cell and Molecular Biology
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