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https://www.readbyqxmd.com/read/28102232/aetiology-and-management-of-hereditary-aortopathy
#1
REVIEW
Aline Verstraeten, Ilse Luyckx, Bart Loeys
Aortic aneurysms are a major health problem because they account for 1-2% of all deaths in the Western population. Although abdominal aortic aneurysms (AAAs) are more prevalent than thoracic aortic aneurysms (TAAs), TAAs have been more exhaustively studied over the past 2 decades because they have a higher heritability and affect younger individuals. Gene identification in both syndromic and nonsyndromic TAA is proceeding at a rapid pace and has already pinpointed >20 genes associated with familial TAA risk...
January 19, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28095789/mirna-338-3p-cdk4-signaling-pathway-suppressed-hepatic-stellate-cell-activation-and-proliferation
#2
Bensong Duan, Jiangfeng Hu, Tongyangzi Zhang, Xu Luo, Yi Zhou, Shun Liu, Liang Zhu, Cheng Wu, Wenxiang Liu, Chao Chen, Hengjun Gao
BACKGROUND: Activated hepatic stellate cell (HSC) is the main fibrogenic cell type in the injured liver. miRNA plays an important role in activation and proliferation of HSC. METHODS: Our previous study examined the expression profiles of microRNAs in quiescent and activated HSC. Real-time PCR and western blot were used to detect the expression of Collagen type I (Col 1) and Alpha-Smooth Muscle Actin (α-SMA). CCK-8 and Edu assay was used to measure the proliferation rate of HSC...
January 17, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28090562/hepatitis-c-virus-induced-monocyte-differentiation-into-polarized-m2-macrophages-promotes-stellate-cell-activation-via%C3%A2-tgf-%C3%AE
#3
Banishree Saha, Karen Kodys, Gyongyi Szabo
BACKGROUND & AIMS: Monocyte and macrophage (MΦ) activation contributes to the pathogenesis of chronic hepatitis C virus (HCV) infection. Disease pathogenesis is regulated by both liver-resident MΦs and monocytes recruited as precursors of MΦs into the damaged liver. Monocytes differentiate into M1 (classic/proinflammatory) or M2 (alternative/anti-inflammatory) polarized MΦs in response to tissue microenvironment. We hypothesized that HCV-infected hepatoma cells (infected with Japanese fulminant hepatitis-1 [Huh7...
May 2016: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28081461/bdnf-gene-delivery-mediated-by-neuron-targeted-nanoparticles-is-neuroprotective-in-peripheral-nerve-injury
#4
Cátia D F Lopes, Nádia P Gonçalves, Carla P Gomes, Maria J Saraiva, Ana P Pêgo
Neuron-targeted gene delivery is a promising strategy to treat peripheral neuropathies. Here we propose the use of polymeric nanoparticles based on thiolated trimethyl chitosan (TMCSH) to mediate targeted gene delivery to peripheral neurons upon a peripheral and minimally invasive intramuscular administration. Nanoparticles were grafted with the non-toxic carboxylic fragment of the tetanus neurotoxin (HC) to allow neuron targeting and were explored to deliver a plasmid DNA encoding for the brain-derived neurotrophic factor (BDNF) in a peripheral nerve injury model...
December 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/28078807/traumatized-muscle-derived-multipotent-progenitor-cells-recruit-endothelial-cells-through-vascular-endothelial-growth-factor-a-action
#5
Heidi R H Supanc, Shannon Gorman, Rocky S Tuan
Traumatized muscle, such as that debrided from blast injury sites, is considered a promising and convenient tissue source for multipotent progenitor cells (MPCs), a population of adult mesenchymal stem cell (MSC)-like cells. The present study aimed to assess the regenerative therapeutic potential of human traumatized muscle-derived MPCs, e.g., for injury repair in the blast-traumatized extremity, by comparing their pro-angiogenic potential in vitro and capillary recruitment activity in vivo to those of MSCs isolated from human bone marrow, a widely-used tissue source...
January 12, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28074479/gdf8-inhibits-bone-formation-and-promotes-bone-resorption-in-mice
#6
Yu-Si Chen, Qi Guo, Li-Juan Guo, Ting Liu, Xian-Ping Wu, Zhang-Yuan Lin, Hong-Bo He, Tie-Jian Jiang
Growth Differentiation Factor 8 (GDF8), also called myostatin, is a member of the transforming growth factor (TGF)-β super-family. As a negative regulator of skeletal muscle growth, GDF8 is also associated with bone metabolism. However, the function of GDF8 in bone metabolism is not fully understood. Our study aimed to investigate the role of GDF8 in bone metabolism, both in vitro and in vivo. Our results showed that GDF8 had a negative regulatory effect on primary mouse osteoblasts, and promoted receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclastogenesis in vitro...
January 11, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28074127/transfer-of-%C3%AE-hydroxy-%C3%AE-methylbutyrate-from-sows-to-their-offspring-and-its-impact-on-muscle-fiber-type-transformation-and-performance-in-pigs
#7
Haifeng Wan, Jiatao Zhu, Caimei Wu, Pan Zhou, Yong Shen, Yan Lin, Shengyu Xu, Lianqiang Che, Bin Feng, Jian Li, Zhengfeng Fang, De Wu
BACKGROUND: Previous studies suggested that supplementation of lactating sows with β-hydroxy-β-methylbutyrate (HMB) could improve the performance of weaning pigs, but there were little information in the muscle fiber type transformation of the offspring and the subsequent performance in pigs from weaning through finishing in response to maternal HMB consumption. The purpose of this study was to determine the effect of supplementing lactating sows with HMB on skeletal muscle fiber type transformation and growth of the offspring during d 28 and 180 after birth...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28069703/loss-of-osteoglycin-promotes-angiogenesis-in-limb-ischaemia-mouse-models-via-modulation-of-vascular-endothelial-growth-factor-and-vascular-endothelial-growth-factor-receptor-2-signalling-pathway
#8
Qi-Hong Wu, Yu Ma, Cheng-Chao Ruan, Yan Yang, Xin-He Liu, Qian Ge, Ling-Ran Kong, Ji-Wei Zhang, Chen Yan, Ping-Jin Gao
OBJECTIVE: Osteoglycin (OGN) has been noted for its implication in cardiovascular disease in recent studies. However, the relationship between OGN and angiogenesis remains unknown. Therefore, we aimed to investigate the effect of OGN on ischaemia-induced angiogenesis and to address the underlying mechanisms. METHODS AND RESULTS: The expression of OGN was decreased in a limb ischaemia mouse model. OGN knockout (KO) mice were used to further understand the role of OGN after ischaemia...
January 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28065360/intracavernous-injection-of-human-umbilical-cord-blood-mononuclear-cells-improves-erectile-dysfunction-in-streptozotocin-induced-diabetic-rats
#9
Tugba Cengiz, Ecem Kaya, Didem Yilmaz Oral, Isil Ozakca, Nur Bayatli, Arzu Zeynep Karabay, Tugba Altun Ensari, Tuna Karahan, Enis Yilmaz, Serap Gur
INTRODUCTION: Erectile dysfunction (ED) worsens in men with diabetes. Human umbilical cord blood (HUCB), because of its widespread availability and low immunogenicity, is a valuable source for stem cell-based therapies. AIM: To determine the effect of intracavernous injection of HUCB mononuclear cells (MNCs) on ED in rats with diabetes induced by streptozotocin. METHODS: Thirty adult male Sprague-Dawley rats were equally divided into three groups: (i) control, (ii) diabetes induced by streptozotocin (35 mg/kg intravenously for 8 weeks), and (iii) diabetic rats treated with MNCs (1 × 10(6) cells by intracavernosal injection)...
January 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28062493/olfactomedin-2-regulates-smooth-muscle-phenotypic-modulation-and-vascular-remodeling-through-mediating-runt-related-transcription-factor-2-binding-to-serum-response-factor
#10
Ning Shi, Chen-Xiao Li, Xiao-Bing Cui, Stanislav I Tomarev, Shi-You Chen
OBJECTIVE: The objective of this study is to investigate the role and underlying mechanism of Olfactomedin 2 (Olfm2) in smooth muscle cell (SMC) phenotypic modulation and vascular remodeling. APPROACH AND RESULTS: Platelet-derived growth factor-BB induces Olfm2 expression in primary SMCs while modulating SMC phenotype as shown by the downregulation of SMC marker proteins. Knockdown of Olfm2 blocks platelet-derived growth factor-BB-induced SMC phenotypic modulation, proliferation, and migration...
January 5, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28062322/mir-23b-controls-tgf-%C3%AE-1-induced-airway-smooth-muscle-cell-proliferation-via-direct-targeting-of-smad3
#11
Ming Chen, Jianting Shi, Wei Zhang, Linjie Huang, Xiaoling Lin, Zhiqiang Lv, Wei Zhang, Ruiyun Liang, Shanping Jiang
BACKGROUND: MicroRNAs are small yet versatile gene tuners that regulate a variety of cellular processes, including cell growth and proliferation. Here we report that miR-23b inhibited airway smooth muscle cells (ASMCs) proliferation through directly targeting of Smad3. METHODS: We obtained ASMCs by laser capture microdissection of normal and asthmatic mice lung tissues. Mice ASMCs were cultured and induced by TGF-β1. The implication between TGF-β1 and miR-23b in ASMCs were detected by RT-PCR...
January 3, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28052053/5-aminolaevulinic-acid-based-photodynamic-therapy-restrains-pathological-hyperplasia-of-fibroblasts
#12
Xiaochuan Wang, Ping Cao, Jian Liu, Peng Du, Zhiqiong Wang, Wei Chen, Chang Liu, Yifei Wu
BACKGROUND This study aimed to explore whether 5-aminolaevulinic acid-based photodynamic therapy (ALA-PDT) restrains pathological hyperplasia of fibroblasts from hyperplastic scar tissues, and to investigate the potential mechanism. MATERIAL AND METHODS We used MTT assay, flow cytometry, and terminal-deoxynucleotidyl transferase mediated nick-end labeling (TUNEL) to examine the effects of ALA-PDT on proliferation, cell cycle, and apoptosis of fibroblasts isolated from hyperplastic scar tissues. The growth-promoting effect of fibroblasts on vascular endothelial cells was measured by cell co-culture...
January 4, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28046186/principal-component-analysis-of-breeding-values-for-growth-and-reproductive-traits-and-genetic-association-with-adult-size-in-beef-cattle
#13
A A Boligon, I S Vicente, R Z Vaz, G S Campos, F R P Souza, R Carvalheiro, L G Albuquerque
Principal component analysis was applied to evaluate the variability and relationships among univariate breeding values predicted for 9 weaning and yearling traits, as well as suggest functions of the traits that would promote a particular breeding objective. Phenotypic and pedigree information from 600,132 Nelore animals was used. Genetic parameters and breeding values were obtained from univariate analyses of birth to weaning weight gain; weaning to yearling weight gain; conformation, finishing precocity, and muscling scores at weaning and at yearling; and yearling scrotal circumference...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28043294/-effects-of-huanglian-ointment-on-wound-healing-of-mice-with-full-thickness-skin-defect-and-the-related-mechanism
#14
X F Zhang, G F Sun, Y F Chen, J Y Ma, C F Gao, X Sheng, D X Feng
Objective: To observe the effects of Huanglian ointment on wound healing of mice with full-thickness skin defect, and to explore the related mechanism. Methods: Thirty male C57BL/6J mice were divided into Huanglian ointment group and vehicle group according to the random number table after round wounds of full-thickness skin defect with diameter of 7.5 mm were inflicted on the back of each mouse, with 15 mice in each group. Wounds of mice in Huanglian ointment group and vehicle group were treated with Huanglian ointment and vehicle respectively from post injury day (PID) 1 on, 2 times each day...
December 20, 2016: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28036116/hmgb1-down-regulation-mediates-terameprocol-vascular-anti-proliferative-effect-in-experimental-pulmonary-hypertension
#15
Rita Nogueira-Ferreira, Manuel J Ferreira-Pinto, Ana Filipa Silva, Rui Vitorino, Joana Justino, Raquel Costa, Daniel Moreira-Gonçalves, Jean-François Quignard, Thomas Ducret, Jean-Pierre Savineau, Adelino F Leite-Moreira, Rita Ferreira, Tiago Henriques-Coelho
Pulmonary arterial hypertension (PAH) is a progressive disease with a poor prognosis. Pulmonary artery smooth muscle cells (PASMCs) play a crucial role in PAH pathophysiology, displaying a hyperproliferative and apoptotic-resistant phenotype. In the present study, we evaluated the potential therapeutic role of terameprocol (TMP), an inhibitor of cellular proliferation and promoter of apoptosis, in a well-established pre-clinical model of PAH induced by monocrotaline (MCT) and studied the biological pathways modulated by TMP in PASMCs...
December 30, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28032743/sustained-local-release-of-ngf-from-a-chitosan-sericin-composite-scaffold-for-treating-chronic-nerve-compression
#16
Lei Zhang, Wen Yang, Kaixiong Tao, Yu Song, Hongjian Xie, Jian Wang, Xiaolin Li, Xiaoming Shuai, Jinbo Gao, Panpan Chang, Guobin Wang, Zheng Wang, Lin Wang
Chronic nerve compression (CNC), such as carpal tunnel syndrome (CTS), is a common cause of peripheral nerve dysfunction and chronic peripheral nerve pain. Current available treatments for CNC are ineffective as they usually aim to alleviate symptoms at the acute phase with limited capability towards restoring injured nerve function. New approaches for effective recovery of CNC injury are highly desired. Here we report for the first time a tissue-engineered approach for the repair of CNC. A genipin cross-linked chitosan-sericin 3D scaffold for delivering nerve growth factor (NGF) was designed and fabricated...
December 29, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28032440/magnolol-attenuates-concanavalin-a-induced-hepatic-fibrosis-inhibits-cd4-t-helper-17-th17-cell-differentiation-and-suppresses-hepatic-stellate-cell-activation-blockade-of-smad3-smad4-signalling
#17
Hongjun Zhang, Baoling Ju, Xiaoli Zhang, Yanfei Zhu, Ying Nie, Yuanhong Xu, Qiuxia Lei
Magnolol is a pharmacological biphenolic compound extracted from Chinese herb Magnolia officinalis, which displays anti-inflammatory and antioxidant effects. This study was aimed at exploring the potential effect of magnolol on immune-related liver fibrosis. Herein, BALB/c mice were injected with concanavalin A (ConA, 8 mg/kg/week) up to 6 weeks to establish hepatic fibrosis, and magnolol (10, 20, 30 mg/kg/day) was given to these mice orally throughout the whole experiment. We found that magnolol preserved liver function and attenuated liver fibrotic injury in vivo...
December 29, 2016: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28025104/adrenoceptors-promote-glucose-uptake-into-adipocytes-and-muscle-by-an-insulin-independent-signalling-pathway-involving-mechanistic-target-of-rapamycin-complex-2
#18
Saori Mukaida, Bronwyn A Evans, Tore Bengtsson, Dana S Hutchinson, Masaaki Sato
Uptake of glucose into skeletal muscle and adipose tissue plays a vital role in metabolism and energy balance. Insulin released from β-islet cells of the pancreas promotes glucose uptake in these target tissues by stimulating translocation of GLUT4 transporters to the cell surface. This process is complex, involving signalling proteins including the mechanistic (or mammalian) target of rapamycin (mTOR) and Akt that intersect with multiple pathways controlling cell survival, growth and proliferation. mTOR exists in two forms, mTOR complex 1 (mTORC1), and mTOR complex 2 (mTORC2)...
December 23, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28024296/mtorc1-and-muscle-regeneration-are-regulated-by-the-linc00961-encoded-spar-polypeptide
#19
Akinobu Matsumoto, Alessandra Pasut, Masaki Matsumoto, Riu Yamashita, Jacqueline Fung, Emanuele Monteleone, Alan Saghatelian, Keiichi I Nakayama, John G Clohessy, Pier Paolo Pandolfi
Although long non-coding RNAs (lncRNAs) are non-protein-coding transcripts by definition, recent studies have shown that a fraction of putative small open reading frames within lncRNAs are translated. However, the biological significance of these hidden polypeptides is still unclear. Here we identify and functionally characterize a novel polypeptide encoded by the lncRNA LINC00961. This polypeptide is conserved between human and mouse, is localized to the late endosome/lysosome and interacts with the lysosomal v-ATPase to negatively regulate mTORC1 activation...
December 26, 2016: Nature
https://www.readbyqxmd.com/read/28019664/pyk2-inhibition-promotes-contractile-differentiation-in-arterial-smooth-muscle
#20
Mario Grossi, Anirban Bhattachariya, Ina Nordström, Karolina M Turczyńska, Daniel Svensson, Sebastian Albinsson, Bengt-Olof Nilsson, Per Hellstrand
Modulation from contractile to synthetic phenotype of vascular smooth muscle cells is a central process in disorders involving compromised integrity of the vascular wall. Phenotype modulation has been shown to include transition from voltage-dependent towards voltage-independent regulation of the intracellular calcium level, and inhibition of non-voltage dependent calcium influx contributes to maintenance of the contractile phenotype. One possible mediator of calcium-dependent signaling is the FAK-family non-receptor protein kinase Pyk2, which is activated by a number of stimuli in a calcium-dependent manner...
December 26, 2016: Journal of Cellular Physiology
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