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Muscle growth protein

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https://www.readbyqxmd.com/read/27933336/shp-1-activation-inhibits-vascular-smooth-muscle-cell-proliferation-and-intimal-hyperplasia-in-a-rodent-model-of-insulin-resistance-and-diabetes
#1
Weier Qi, Qian Li, Chong Wee Liew, Christian Rask-Madsen, Samuel M Lockhart, Lars Melholt Rasmussen, Yu Xia, Xuanchun Wang, Mogher Khamaisi, Kevin Croce, George L King
AIMS/HYPOTHESIS: Accelerated migration and proliferation of vascular smooth muscle cells (VSMCs) enhances arterial restenosis after angioplasty in insulin resistance and diabetes. Elevation of Src homology 2-containing protein tyrosine phosphatase 1 (SHP-1) induces apoptosis in the microvasculature. However, the role of SHP-1 in intimal hyperplasia and restenosis has not been clarified in insulin resistance and diabetes. METHODS: We used a femoral artery wire injury mouse model, rodent models with insulin resistance and diabetes, and patients with type 2 diabetes...
December 9, 2016: Diabetologia
https://www.readbyqxmd.com/read/27931511/myod-overexpressed-equine-adipose-derived-stem-cells-enhanced-myogenic-differentiation-potential
#2
Soo-Eun Sung, Meeyul Hwang, Ah-Young Kim, Eun-Mi Lee, Eun-Joo Lee, Su-Kyeong Hwang, Shin-Yoon Kim, Hong-Kyun Kim, Kyu-Shik Jeong
Mesenchymal stem cells could potentially be used in the clinical treatment of muscle disorders and muscle regeneration. Adipose-derived stem cells (ADSCs) can be easily isolated from adipose tissue, as opposed to stem cells of other tissues. We believe that cell therapy using ADSCs could be applied to muscle disorders in horses and other species. We sought to improve the myogenic differentiation potential of equine ADSCs (eqADSCs) using a MyoD lentiviral vector. MyoD lentiviruses were transduced into eqADSCs and selected using puromycin...
November 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27928778/previously-unreported-biallelic-mutation-in-dnajc19-are-sensorineural-hearing-loss-and-basal-ganglia-lesions-additional-features-of-dilated-cardiomyopathy-and-ataxia-dcma-syndrome
#3
Sema Kalkan Ucar, Johannes A Mayr, René G Feichtinger, Ebru Canda, Mahmut Çoker, Saskia B Wortmann
BACKGROUND: Dilated cardiomyopathy (DCM), non-progressive cerebellar ataxia (A), testicular dysgenesis, growth failure, and 3-methylglutaconic aciduria are the hallmarks of DNAJC19 defect (or DCMA syndrome) due to biallelic mutations in DNAJC19. To date DCMA syndrome has been reported in 19 patients from Canada and in two Finnish siblings. The underlying pathomechanism is unknown; however, DNAJC19 is presumed to be involved in mitochondrial membrane related processes (e.g., protein import and cardiolipin remodeling)...
December 8, 2016: JIMD Reports
https://www.readbyqxmd.com/read/27928147/mechanistic-study-of-the-inhibitory-effect-of-kaempferol-on-uterine-fibroids-in-vitro
#4
Yanxia Li, Zhaoxia Ding, Chuanzhong Wu
BACKGROUND This study examined the effect of kaempferol on uterine fibroids in vitro and the underlying mechanism, and investigated the potential of kaempferol as a clinical drug for the treatment of uterine fibroids. MATERIAL AND METHODS Uterine fibroid tissue and surrounding smooth muscle tissue were collected for primary culture. Different concentrations of kaempferol (12 μM, 24 μM, and 48 μM) were used to treat the cells for 24, 48, and 72 hours. Ethanol was used in the control group. A CCK-8 colorimetric assay was used to detect cell proliferation...
December 8, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27927633/nck-associated-protein-1-modulated-by-mirna-214-determines-vascular-smooth-muscle-cell-migration-proliferation-and-neointima-hyperplasia
#5
Tayyab Adeel Afzal, Le Anh Luong, Dan Chen, Cheng Zhang, Feng Yang, Qishan Chen, Weiwei An, Edmund Wilkes, Kenta Yashiro, Pedro R Cutillas, Li Zhang, Qingzhong Xiao
BACKGROUND: MicroRNA miR-214 has been implicated in many biological cellular functions, but the impact of miR-214 and its target genes on vascular smooth muscle cell (VSMC) proliferation, migration, and neointima smooth muscle cell hyperplasia is unknown. METHODS AND RESULTS: Expression of miR-214 was closely regulated by different pathogenic stimuli in VSMCs through a transcriptional mechanism and decreased in response to vascular injury. Overexpression of miR-214 in serum-starved VSMCs significantly decreased VSMC proliferation and migration, whereas knockdown of miR-214 dramatically increased VSMC proliferation and migration...
December 7, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27924445/growth-arrest-of-vascular-smooth-muscle-cells-in-suspension-culture-using-low-acyl-gellan-gum
#6
Tomomi Natori, Masachika Fujiyoshi, Masashi Uchida, Natsuki Abe, Tatsuro Kanaki, Yasunori Fukumoto, Itsuko Ishii
The proliferation of vascular smooth muscle cells (SMCs) causes restenosis in biomaterial vascular grafts. The purposes of this study were to establish a suspension culture system for SMCs by using a novel substrate, low-acyl gellan gum (GG) and to maintain SMCs in a state of growth inhibition. When SMCs were cultured in suspension with GG, their proliferation was inhibited. Their viability was 70% at day 2, which was maintained at more than 50% until day 5. In contrast, the viability of cells cultured in suspension without GG was 5...
December 6, 2016: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/27923978/smooth-muscle-cell-specific-tgfbr1-deficiency-attenuates-neointimal-hyperplasia-but-promotes-an-undesired-vascular-phenotype-for-injured-arteries
#7
Mingmei Liao, Pu Yang, Fen Wang, Scott A Berceli, Yasmin H Ali, Kelvin L Chan, Zhihua Jiang
Neointimal hyperplasia (NIH) and inward wall remodeling cause arterial restenosis and failure of bypass vein grafts. Previous studies from our group suggest that transforming growth factor (TGF) β promotes these pathologies via regulating cell kinetics at the early stage and matrix metabolism at the late stage. Although these temporal TGFβ effects may result from its signaling in different cell groups, the responsible cell type has not been identified. In the current study, we evaluated the effect of smooth muscle cell (SMC)-specific TGFβ signaling through its type I receptor TGFBR1 on NIH and wall remodeling of the injured femoral arteries (FAs)...
December 2016: Physiological Reports
https://www.readbyqxmd.com/read/27923399/ccaat-enhancer-binding-protein-%C3%AE-is-required-for-satellite-cell-self-renewal
#8
Neena Lala-Tabbert, Hamood AlSudais, François Marchildon, Dechen Fu, Nadine Wiper-Bergeron
BACKGROUND: Postnatal growth and repair of skeletal muscle relies upon a population of quiescent muscle precursor cells, called satellite cells that can be activated to proliferate and differentiate into new myofibers, as well as self-renew to replenish the satellite cell population. The balance between differentiation and self-renewal is critical to maintain muscle tissue homeostasis, and alterations in this equilibrium can lead to chronic muscle degeneration. The transcription factor CCAAT/enhancer binding protein beta (C/EBPβ) is expressed in Pax7(+) satellite cells of healthy muscle and is downregulated during myoblast differentiation...
December 7, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27922672/2-methoxycinnamaldehyde-inhibits-the-tnf-%C3%AE-induced-proliferation-and-migration-of-human-aortic-smooth-muscle-cells
#9
Young-Hee Jin, Soo-A Kim
The abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) is a crucial event in the development of atherosclerosis, and tumor necrosis factor-α (TNF-α) is actively involved in this process by enhancing the proliferation and migration of VSMCs. 2-Methoxycinnamaldehyde (MCA) is a natural compound of Cinnamomum cassia. Although 2-hydroxycinnamaldehyde (HCA), another compound from Cinnamomum cassia, has been widely studied with regard to its antitumor activity, MCA has not attracted researchers' interest due to its mild toxic effects on cancer cells and its mechanisms of action remain unknown...
December 6, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27921108/a-novel-antioxidant-peptide-derived-from-wheat-germ-prevents-high-glucose-induced-oxidative-stress-in-vascular-smooth-muscle-cells-in-vitro
#10
Siyuan Chen, Dingbo Lin, Yulong Gao, Xiaozhou Cao, Xinchun Shen
The ingestion of whole wheat products is responsible for the prevention of a number of chronic diseases. The aim of this study is to characterize the molecular properties of a novel wheat germ-derived antioxidant peptide (AOP) in protection against high glucose-induced oxidative stress in vascular smooth muscle cells (VSMCs). AOP (amino acid sequence AREGETVVPG) was isolated from wheat germ albumin using dual-enzymatic hydrolysis/separation, followed by MS/MS. The in vitro IC50 value for Fe(2+) chelation was 0...
December 6, 2016: Food & Function
https://www.readbyqxmd.com/read/27919855/uncoupling-protein-2-deficiency-reduces-proliferative-capacity-of-murine-pancreatic-stellate-cells
#11
Sarah Muller, Sandra Maria Klingbeil, Andreea Sandica, Robert Jaster
BACKGROUND: Uncoupling protein 2 (UCP2) has been suggested to inhibit mitochondrial production of reactive oxygen species (ROS) by decreasing the mitochondrial membrane potential. Experimental acute pancreatitis is associated with increased UCP2 expression, whereas UCP2 deficiency retards regeneration of aged mice from acute pancreatitis. Here, we have addressed biological and molecular functions of UCP2 in pancreatic stellate cells (PSCs), which are involved in pancreatic wound repair and fibrogenesis...
December 2016: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/27918822/growth-differentiation-factor-15-induced-contractile-activity-and-extracellular-matrix-production-in-human-trabecular-meshwork-cells
#12
Arumugam Ramachandran Muralidharan, Rupalatha Maddala, Nikolai P Skiba, Ponugoti Vasantha Rao
Purpose: To determine the role and regulation of growth differentiation factor-15 (GDF-15), a TGF-β-related cytokine in human trabecular meshwork (TM) cells in the context of aqueous humor (AH) outflow and IOP. Methods: Regulation of expression by external cues, and the distribution and secretion of GDF-15 by human TM primary cell cultures, and the effects of recombinant (r) GDF-15 on TM cell contractile characteristics, actin cytoskeleton, cell adhesion, extracellular matrix (ECM), α-smooth muscle actin (αSMA), SMAD signaling, and gene expression were determined by immunoblot, immunofluorescence, mass spectrometry, cDNA microarray, and real-time quantitative PCR (RT-qPCR) analyses...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27917336/effect-of-diets-with-different-energy-concentrations-on-growth-performance-carcass-characteristics-and-meat-chemical-composition-of-broiler-chickens-in-dry-tropics
#13
F Infante-Rodríguez, J Salinas-Chavira, M F Montaño-Gómez, O M Manríquez-Nuñez, V M González-Vizcarra, O F Guevara-Florentino, J A Ramírez De León
BACKGROUND: Diets with increasing levels of energy were fed for 42 days to 200, 1-day old male broiler chickens to evaluate growth performance, carcass characteristics and chemical composition of meat. The study was performed in the subtropical area of northeastern Mexico. Treatments diets (T) for starter and finisher phases had apparent metabolizable energy (AME; kcal/kg) of: 2960 and 3040 (T1); 3000 and 3080 (T2); 3040 and 3120 (T3); 3080 and 3160 (T4), respectively. Within each of the growing phases the four treatment diets were formulated to contain similar levels of crude protein, amino acids, and other nutrients...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27916369/expression-of-connexin-26-and-connexin-43-is-reduced-in-hirschsprung-s-disease
#14
David Coyle, Brian Doyle, Justin M Murphy, Anne Marie O'Donnell, John Gillick, Prem Puri
BACKGROUND: Despite having an optimal pull-through operation, some children with Hirschsprung's disease (HSCR) continue to experience persistent bowel symptoms. Coordinated colonic electrical activity depends on intercellular communication between the enteric nerves, interstitial cells of Cajal (ICCs), smooth muscle cells, and fibroblast-like (platelet-derived growth factor receptor-alpha-positive) cells. Gap junctions are low-resistance channels composed of connexin (Cx) proteins which couple cells electrically and chemically...
November 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27914199/filamin-a-synaptic-organizer-in-drosophila-determines-glutamate-receptor-composition-and-membrane-growth
#15
GaYoung Lee, Thomas L Schwarz
Filamin is a scaffolding protein that functions in many cells as an actin-crosslinker. FLN90, an isoform of the Drosophila ortholog Filamin/cheerio that lacks the actin-binding domain, is here shown to govern the growth of postsynaptic membrane folds and the composition of glutamate receptor clusters at the larval neuromuscular junction. Genetic and biochemical analyses revealed that FLN90 is present surrounding synaptic boutons. FLN90 is required in the muscle for localization of the kinase dPak and, downstream of dPak, for localization of the GTPase Ral and the exocyst complex to this region...
December 3, 2016: ELife
https://www.readbyqxmd.com/read/27913275/dietary-fish-oil-replacement-by-linseed-oil-effect-on-growth-nutrient-utilization-tissue-fatty-acid-composition-and-desaturase-gene-expression-in-silver-barb-puntius-gonionotus-fingerlings
#16
Madhusmita Nayak, Ashis Saha, Avinash Pradhan, Mrinal Samanta, Shiba Shankar Giri
Silver barb (Puntius gonionotus) is considered a promising medium carp species for freshwater aquaculture in Asia. This study in silver barb was carried out to evaluate the effects of total or partial substitution of dietary fish oil (FO) with linseed oil (LO) on growth, nutrient utilization, whole-body composition, muscle and liver fatty acid composition. Fish (12.1±0.4g of initial body weight) were fed for 60days with five experimental iso-proteinous, iso-lipidic and iso-caloric diets in which FO (control diet) was replaced by 33...
November 29, 2016: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/27913274/two-grass-carp-ctenopharyngodon-idella-insulin-like-growth-factor-binding-protein-5-genes-exhibit-different-yet-conserved-functions-in-development-and-growth
#17
Guo-Dong Zheng, Chun-Xue Zhou, Si-Tong Lin, Jie Chen, Xia-Yun Jiang, Shu-Ming Zou
Insulin-like growth factor binding-protein 5 (igfbp5), the most conserved member of the IGFBP family in vertebrates, plays a critical role in controlling cell survival, growth, differentiation, and apoptosis. Here, we characterized the expression patterns of igfbp5a and igfbp5b in grass carp (Ctenopharyngodon idella), which are retained in many fish species, likely from the teleost-specific whole-genome duplication. Both igfbp5a and igfbp5b encode 268- and 263-aa peptides, respectively, which share a sequence identity of 71%...
November 30, 2016: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/27909292/crystal-structures-of-the-tric-trimeric-intracellular-cation-channel-orthologues
#18
Go Kasuya, Masahiro Hiraizumi, Andrés D Maturana, Kaoru Kumazaki, Yuichiro Fujiwara, Keihong Liu, Yoshiko Nakada-Nakura, So Iwata, Keisuke Tsukada, Tomotaka Komori, Sotaro Uemura, Yuhei Goto, Takanori Nakane, Mizuki Takemoto, Hideaki E Kato, Keitaro Yamashita, Miki Wada, Koichi Ito, Ryuichiro Ishitani, Motoyuki Hattori, Osamu Nureki
Ca(2+) release from the sarcoplasmic reticulum (SR) and endoplasmic reticulum (ER) is crucial for muscle contraction, cell growth, apoptosis, learning and memory. The trimeric intracellular cation (TRIC) channels were recently identified as cation channels balancing the SR and ER membrane potentials, and are implicated in Ca(2+) signaling and homeostasis. Here we present the crystal structures of prokaryotic TRIC channels in the closed state and structure-based functional analyses of prokaryotic and eukaryotic TRIC channels...
December 2016: Cell Research
https://www.readbyqxmd.com/read/27907103/tbx20-is-an-essential-regulator-of-embryonic-heart-growth-in-zebrafish
#19
Steffen Just, Linda Raphel, Ina M Berger, Anja Bühler, Mirjam Keßler, Wolfgang Rottbauer
The molecular mechanisms that regulate cardiomyocyte proliferation during embryonic heart growth are not completely deciphered yet. In a forward genetic N-ethyl-N-nitrosourea (ENU) mutagenesis screen, we identified the recessive embryonic-lethal zebrafish mutant line weiches herz (whz). Homozygous mutant whz embryos display impaired heart growth due to diminished embryonic cardiomyocyte proliferation resulting in cardiac hypoplasia and weak cardiac contraction. By positional cloning, we found in whz mutant zebrafish a missense mutation within the T-box 20 (Tbx20) transcription factor gene leading to destabilization of Tbx20 protein...
2016: PloS One
https://www.readbyqxmd.com/read/27906092/alterations-to-mtorc1-signaling-in-the-skeletal-muscle-differentially-affect-whole-body-metabolism
#20
Maitea Guridi, Barbara Kupr, Klaas Romanino, Shuo Lin, Denis Falcetta, Lionel Tintignac, Markus A Rüegg
BACKGROUND: The mammalian target of rapamycin complex 1 (mTORC1) is a central node in a network of signaling pathways controlling cell growth and survival. This multiprotein complex integrates external signals and affects different nutrient pathways in various organs. However, it is not clear how alterations of mTORC1 signaling in skeletal muscle affect whole-body metabolism. RESULTS: We characterized the metabolic phenotype of young and old raptor muscle knock-out (RAmKO) and TSC1 muscle knock-out (TSCmKO) mice, where mTORC1 activity in skeletal muscle is inhibited or constitutively activated, respectively...
March 21, 2016: Skeletal Muscle
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