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https://www.readbyqxmd.com/read/29149626/crossbred-young-bulls-and-heifers-sired-by-double-muscled-piemontese-or-belgian-blue-bulls-exhibit-different-effects-of-sexual-dimorphism-on-fattening-performance-and-muscularity-but-not-on-meat-quality-traits
#1
Giovanni Bittante, Alessio Cecchinato, Franco Tagliapietra, Rina Verdiglione, Alberto Simonetto, Stefano Schiavon
As double-muscled Belgian Blue (BB) and Piemontese (PIEM) breeds are heavily selected for different objectives (the former mainly for muscularity, the latter for ease of calving), the aim of this study was to compare sexual dimorphism in 56 crossbred young bulls and heifers obtained from dairy cows mated to bulls of the two beef breeds. Young PIEM- and BB-sired bulls had similar fattening performances and beef traits, although the BB crossbreds were slightly more muscular. Otherwise, the BB-sired heifers exceeded the PIEM-sired heifers in growth rate (1...
November 4, 2017: Meat Science
https://www.readbyqxmd.com/read/29149028/changes-of-cerebral-and-or-peripheral-adenosine-a%C3%A2-receptor-and-igf-i-concentrations-under-extended-sleep-duration-in-rats
#2
Mounir Chennaoui, Pierrick J Arnal, Rodolphe Dorey, Fabien Sauvet, Sylvain Ciret, Thierry Gallopin, Damien Leger, Catherine Drogou, Danielle Gomez-Merino
Extended sleep improves sustained attention and reduces sleep pressure in humans. Downregulation of adenosine A₁ receptor (A₁R) and modulation of the neurotrophic factor insulin growth factor-1 (IGF-I) in brain structures controlling attentional capacities could be involved. In the frontal cortex and hippocampus of rats, we measured adenosine A₁R and IGF-I protein concentrations after photoperiod-induced sleep extension. Two groups of twelve rats were adapted over 14 days to a habitual (CON) 12:12 light-dark (LD) schedule and an extended (EXT) 16:8 LD schedule...
November 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29149020/role-of-transforming-growth-factor-%C3%AE-in-uterine-fibroid-biology
#3
REVIEW
Michał Ciebiera, Marta Włodarczyk, Małgorzata Wrzosek, Błażej Męczekalski, Grażyna Nowicka, Krzysztof Łukaszuk, Magdalena Ciebiera, Aneta Słabuszewska-Jóźwiak, Grzegorz Jakiel
Uterine fibroids (UFs) are benign tumors of the female genital tract made of the smooth muscle of the uterus. UF growth depends mostly on the influence of the steroid hormones and selected growth factors. Transforming growth factor β (TGF-βs) is a polypeptide that consists of three isoforms: TGF-β1, TGF-β2, and TGF-β3. At present, TGF-β is considered to be one of the key factors in the pathophysiology of UFs. It plays a major role in cellular migration within the tumor, stimulates tumor growth, and enhances tumor metabolism...
November 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29147013/integrin-alpha-11-in-the-regulation-of-the-myofibroblast-phenotype-implications-for-fibrotic-diseases
#4
Ruchi Bansal, Shigeki Nakagawa, Saleh Yazdani, Joop van Baarlen, Anu Venkatesh, Anna P Koh, Won-Min Song, Nicolas Goossens, Hideo Watanabe, Mary B Beasley, Charles A Powell, Gert Storm, Naftali Kaminski, Harry van Goor, Scott L Friedman, Yujin Hoshida, Jai Prakash
Tissue fibrosis, characterized by excessive accumulation of aberrant extracellular matrix (ECM) produced by myofibroblasts, is a growing cause of mortality worldwide. Understanding the factors that induce myofibroblastic differentiation is paramount to prevent or reverse the fibrogenic process. Integrin-mediated interaction between the ECM and cytoskeleton promotes myofibroblast differentiation. In the present study, we explored the significance of integrin alpha 11 (ITGA11), the integrin alpha subunit that selectively binds to type I collagen during tissue fibrosis in the liver, lungs and kidneys...
November 17, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29146735/reduced-dnmt3a-increases-gdf5-expression-with-suppressed-satellite-cell-differentiation-and-impaired-skeletal-muscle-regeneration
#5
Yukino Hatazawa, Yusuke Ono, Yuma Hirose, Sayaka Kanai, Nobuharu L Fujii, Shuichi Machida, Ichizo Nishino, Takahiko Shimizu, Masaki Okano, Yasutomi Kamei, Yoshihiro Ogawa
DNA methylation is an epigenetic mechanism regulating gene expression. In this study, we observed that DNA methyltransferase 3a (Dnmt3a) expression is decreased after muscle atrophy. We made skeletal muscle-specific Dnmt3a knockout mice (Dnmt3a-KO mice). The regeneration capacity after muscle injury was markedly decreased in Dnmt3a-KO mice. Diminished mRNA and protein expression of Dnmt3a were observed in skeletal muscles as well as in satellite cells, which are important for muscle regeneration, in Dnmt3a-KO mice...
November 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29143983/growth-of-doxorubicin-resistant-undifferentiated-spindle-cell-sarcoma-pdox-is-arrested-by-metabolic-targeting-with-recombinant-methioninase
#6
Kentaro Igarashi, Shukuan Li, Qinghong Han, Yuying Tan, Kei Kawaguchi, Takashi Murakami, Tasuku Kiyuna, Kentaro Miyake, Yunfeng Li, Scott D Nelson, Sarah M Dry, Arun S Singh, Irmina A Elliott, Tara A Russell, Mark A Eckardt, Norio Yamamoto, Katsuhiro Hayashi, Hiroaki Kimura, Shinji Miwa, Hiroyuki Tsuchiya, Fritz C Eilber, Robert M Hoffman
Undifferentiated spindle-cell sarcoma (USCS) is a recalcitrant -cancer in need of individualized therapy. A high-grade USCS from a striated muscle of a patient was grown orthotopically in the right biceps femoris muscle of nude mice to establish a patient-derived orthotopic xenograft (PDOX) model. In a previous study, we evaluated the efficacy of standard first-line chemotherapy of doxorubicin (DOX), gemcitabine (GEM) combined with docetaxel (DOC), compared to pazopanib (PAZ), a multi-targeting tyrosine-kinase inhibitor, in an USCS PDOX model...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29143982/tweak-fn14-interaction-induces-proliferation-and-migration-in-human-airway-smooth-muscle-cells-via-activating-the-nf-%C3%AE%C2%BAb-pathway
#7
Cuimin Zhu, Leguo Zhang, Zhiming Liu, Chen Li, Yajie Bai
Asthma, an increasingly common chronic disease among children, are characterized by airway remodeling, which is partly attributed to the proliferation and migration of airway smooth muscle cell (ASMC). The purpose of the present study was to investigate potential roles and mechanisms of the tumor necrosis factor-like weak inducer of apoptosis (TWEAK)/fibroblast growth factor-inducible molecule 14 (Fn14) axis on cell proliferation and migration in HASMCs. Compared to HASMCs from non-asthmatic patients, those from asthmatic patients showed elevated expression levels of both Fn14 and TWEAK...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29142264/impairment-of-bkca-channels-in-human-placental-chorionic-plate-arteries-is-potentially-relevant-to-the-development-of-preeclampsia
#8
Mengzhou He, Fanfan Li, Meitao Yang, Yao Fan, Rajluxmee Beejadhursing, Yin Xie, Yuan Zhou, Dongrui Deng
Preeclampsia has known associations with insufficient placental perfusion. The large-conductance Ca(2+)-activated K(+) (BKca) channels that have recently been found to play important roles in cellular growth and vasodilatation could potentially participate in the development of preeclampsia. However, the mechanisms by which downregulated BKca channels are involved in the development of preeclampsia remain unknown. In this study, we investigated the mechanism(s) underlying the impairment of vascular tone regulation by BKca channels in human placental chorionic plate arteries (CPAs) in preeclampsia...
November 16, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29141956/rapid-isolation-and-expansion-of-skin-derived-precursor-cells-from-human-primary-fibroblast-cultures
#9
Leithe Budel, Karima Djabali
Skin-derived precursor (SKP) cells have self-renewal and multipotent abilities and are found in the dermis. SKP cells have been isolated previously from pre-established dermal fibroblast cultures. In these procedures, long-term culture and low yield remain the crucial aspects requiring improvement. In this study, we exposed pre-established dermal fibroblasts to 30-min acid stress prior to isolating SKP cells (termed pH-SKP) and compared the yield to the previously published trypsin- and no-stress methods. Spheroid formation was confirmed and analyzed at days 3, 5 and 7...
November 15, 2017: Biology Open
https://www.readbyqxmd.com/read/29141181/axon-pathfinding-for-locomotion
#10
REVIEW
Dario Bonanomi
Motor neurons of the spinal cord are responsible for the assembly of neuromuscular connections indispensable for basic locomotion and skilled movements. A precise spatial relationship exists between the position of motor neuron cell bodies in the spinal cord and the course of their axonal projections to peripheral muscle targets. Motor neuron innervation of the vertebrate limb is a prime example of this topographic organization and by virtue of its accessibility and predictability has provided access to fundamental principles of motor system development and neuronal guidance...
November 12, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29141033/transcriptome-profiling-of-claw-muscle-of-the-mud-crab-scylla-paramamosain-at-different-fattening-stages
#11
Qingling Jiang, Chenchang Bao, Ya'nan Yang, An Liu, Fang Liu, Huiyang Huang, Haihui Ye
In crustaceans, muscle growth and development is complicated, and to date substantial knowledge gaps exist. In this study, the claw muscle, hepatopancreas and nervous tissue of the mud crab (Scylla paramamosain) were collected at three fattening stages for sequence by the Illumina sequencing. A total of 127.87 Gb clean data with no less than 3.94 Gb generated for each sample and the cycleQ30 percentages were more than 86.13% for all samples. De Bruijn assembly of these clean data produced 94,853 unigenes, thereinto, 50,059 unigenes were found in claw muscle...
2017: PloS One
https://www.readbyqxmd.com/read/29140910/polygenic-profile-and-exercise-induced-muscle-damage-by-a-competitive-half-ironman
#12
Juan Del Coso, Juan J Salinero, Beatriz Lara, César Gallo-Salazar, Francisco Areces, David Herrero, Carlos Puente
Del Coso, J, Salinero, JJ, Lara, B, Gallo-Salazar, C, Areces, F, Herrero, D, and Puente, C. Polygenic profile and exercise-induced muscle damage by a competitive half-ironman. J Strength Cond Res XX(X): 000-000, 2017-To date, it is still unknown why some individuals develop higher levels of muscle damage than other individuals, despite participating in exercise with comparable levels of physical intensity. The aim of this investigation was to analyze 7 single-nucleotide polymorphisms (SNPs) that are candidates to explain individual variations in the level of muscle damage attained during a half-ironman competition...
November 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29140787/tgf-%C3%AE-requires-the-activation-of-canonical-and-non-canonical-signalling-pathways-to-induce-skeletal-muscle-atrophy
#13
Johanna Ábrigo, Fabian Campos, Felipe Simon, Claudia Riedel, Daniel Cabrera, Cristian Vilos, Claudio Cabello-Verrugio
The transforming growth factor type beta (TGF-β) induces skeletal muscle atrophy characterized by a decrease in fiber's diameter and levels of myosin heavy chain (MHC), also as an increase of MuRF-1 expression. In addition, TGF-β induces muscle atrophy by a mechanism dependent on reactive oxygen species (ROS). TGF-β signals by activating both canonical Smad-dependent, and non-canonical signalling pathways such as ERK1/2, JNK1/2, and p38 MAPKs. However, the participation of canonical and non-canonical signalling pathways in the TGF-β atrophic effect on skeletal muscle is unknown...
August 28, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/29140573/-99m-tc-labeled-rhuepo-for-imaging-of-the-erythropoietin-receptor-in-tumors
#14
Xiaoqing Zhuang, Dan Zhao, Pengfei Yang, Yingqin Jia, Rui Liang, Qian Zhao, Chunlei Han, Joseph M Kinsella, Ruilong Sheng, Juan Li
To analyze erythropoietin receptor (EpoR) status in tumors, recombinant human erythropoietin (rHuEpo) was labeled with (99m) Tc by (99m) Tc-centered one-pot synthesis, resulting in high radiochemical purity, stability and biological activity. Both in vitro cell culture experiments and biodistribution studies of normal rats demonstrated successful EpoR targeting. The biodistribution of labeled rHuEpo in a NCI-H1975 xenograft model showed tumor accumulation (tumor-to-muscle ratio: 4.27±1.77), confirming the expression of active EpoR in tumors...
November 15, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29140133/ite-inhibits-growth-of-human-pulmonary-artery-endothelial-cells
#15
Ling-Pin Pang, Yan Li, Qing-Yun Zou, Chi Zhou, Wei Lei, Jing Zheng, Shi-An Huang
AIM: Pulmonary arterial hypertension (PAH), a deadly disorder is associated with excessive growth of human pulmonary artery endothelial (HPAECs) and smooth muscle (HPASMCs) cells. Current therapies primarily aim at promoting vasodilation, which only ameliorates clinical symptoms without a cure. 2-(1'H-indole-3'-carbonyl)-thiazole-4-carboxylic acid methyl ester (ITE) is an endogenous aryl hydrocarbon receptor (AhR) ligand, and mediates many cellular function including cell growth. However, the roles of ITE in human lung endothelial cells remain elusive...
October 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29138647/nodding-syndrome-ns-and-onchocerca-volvulus-ov-in-northern-uganda
#16
David Kitara Lagoro, Denis Anywar Arony
Nodding Syndrome (NS) is a childhood neurological disorder characterized by atonic seizures, cognitive decline, school dropout, muscle weakness, thermal dysfunction, wasting and stunted growth. There are recent published information suggesting associations between Nodding Syndrome (NS) with cerebrospinal fluid (CSF) VGKC antibodies and serum leiomidin-1 antibody cross reacting with Onchocerca Volvulus (OV). These findings suggest a neuro-inflammatory cause of NS and they are important findings in the search for the cause of Nodding Syndrome...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29138241/decorin-a-growth-hormone-regulated-protein-in-humans
#17
Neha Bahl, Glenn Stone, Mark McLean, Ken K Y Ho, Vita Birzniece
CONTEXT: Growth hormone (GH) stimulates connective tissue and muscle growth, an effect that is potentiated by testosterone. Decorin, a myokine and a connective tissue protein, stimulates connective tissue accretion and muscle hypertrophy. Whether GH and testosterone regulate decorin in humans is not known. OBJECTIVE: To determine whether decorin is stimulated by GH and testosterone. DESIGN: Randomized, placebo-controlled, double-blind study...
November 14, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29138211/transcriptome-sequencing-of-the-naked-mole-rat-heterocephalus-glaber-and-identification-of-hypoxia-tolerance-genes
#18
Bang Xiao, Li Li, Chang Xu, Shanmin Zhao, Lifang Lin, Jishuai Cheng, Wenjing Yang, Wei Cong, Guanghan Kan, Shufang Cui
The naked mole rat (NMR; Heterocephalus glaber) is a small rodent species found in regions of Kenya, Ethiopia and Somalia. It has a high tolerance for hypoxia and is thus, considered one of the most important natural models for studying hypoxia tolerance mechanisms. The various mechanisms underlying the NMR's hypoxia tolerance are beginning to be understood at different levels of organization, and next-generation sequencing methods promise to expand this understanding to the level of gene expression. In this study, we examined the sequence and transcript abundance data of the muscle transcriptome of NMRs exposed to hypoxia using the Illumina HiSeq 2500 system to clarify the possible genomic adaptive responses to the hypoxic underground surroundings...
November 14, 2017: Biology Open
https://www.readbyqxmd.com/read/29137389/targeting-src-attenuates-peritoneal-fibrosis-and-inhibits-the-epithelial-to-mesenchymal-transition
#19
Jun Wang, Li Wang, Liuqing Xu, Yingfeng Shi, Feng Liu, Hualin Qi, Na Liu, Shougang Zhuang
Src has been reported to mediate tissue fibrosis in several organs, but its role in peritoneal fibrosis remains unknown. In this study, we evaluated the therapeutic effect of KX2-391, a highly selective inhibitor of Src, on the development of peritoneal fibrosis in a rat model. Daily intraperitoneal injections of chlorhexidine gluconate induced peritoneal fibrosis, as indicated by thickening of the submesothelial area with an accumulation of collagen fibrils and activation of myofibroblasts. This was accompanied by time-dependent phosphorylation of Src at tyrosine 416...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137319/effects-of-growth-hormone-on-cardiac-remodeling-and-soleus-muscle-in-rats-with-aortic-stenosis-induced-heart-failure
#20
Aline R R Lima, Luana U Pagan, Ricardo L Damatto, Marcelo D M Cezar, Camila Bonomo, Mariana J Gomes, Paula F Martinez, Daniele M Guizoni, Dijon H S Campos, Felipe C Damatto, Katashi Okoshi, Marina P Okoshi
Background: Skeletal muscle wasting is often observed in heart failure (HF). The growth hormone (GH)/insulin-like growth factor-1 (IGF-1) axis is impaired in HF. In this study, we evaluated the effects of GH on soleus muscle and cardiac remodeling in rats with aortic stenosis (AS)-induced HF. Methods: AS was created by placing a stainless-steel clip on the ascending aorta. After clinically detecting HF, GH (2 mg/kg/day) was subcutaneously injected for 14 days (AS-GH group)...
October 10, 2017: Oncotarget
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