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https://www.readbyqxmd.com/read/28440100/detrimental-effects-of-nicotine-on-thioacetamide-induced-liver-injury-in-mice
#1
Zixiong Zhou, Surim Park, Jong Won Kim, Jing Zhao, Moo-Yeol Lee, Kyung Chul Choi, Chae Woong Lim, Bumseok Kim
AIM: Nicotine exerts a number of physiological effects. The purpose of this study was to determine the effects of nicotine on thioacetamide (TAA)-induced liver fibrosis in mice. MATERIALS AND METHODS: For in vivo experiments, hepatic fibrosis was induced by TAA (0.25 g/kg, i.p.) three times a week for 6 weeks. Mice of TAA treated groups were administered daily with distilled water and nicotine (50 or 100 μg/mL) via gastrogavage throughout the experimental period...
April 25, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28427699/people-with-ms-are-less-physically-active-than-healthy-controls-but-as-active-as-those-with-other-chronic-diseases-an-updated-meta-analysis
#2
D Kinnett-Hopkins, B Adamson, K Rougeau, R W Motl
BACKGROUND: There has been remarkable growth in research examining physical activity behavior (any bodily movement produced by skeletal muscle contraction that results in energy expenditure) among people living with multiple sclerosis (MS) over the past decade. The current meta-analysis quantified physical activity participation levels in persons with MS compared with non-diseased and other clinical populations. METHODS: We searched PUBMED, PsycINFO and Web of Science using the keywords physical activity, exercise, and physical fitness in conjunction with MS...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28427101/tanshinol-alleviates-osteoporosis-and-myopathy-in-glucocorticoid-treated-rats
#3
Guanghua Chen, Xinle Zhang, Han Lin, Guizhi Huang, Yahui Chen, Liao Cui
Tanshinol is a major water-soluble active component of Salvia miltiorrhiza. In this study, we aimed to investigate whether tanshinol has potential therapeutic effects against glucocorticoid-induced osteoporosis and glucocorticoid-induced myopathy. Ninety-six female Sprague-Dawley rats were randomly assigned to five groups: a control group, a model group, and three model groups treated with 25 or 50 mg/kg of tanshinol, or calcitriol. All model groups received prednisone acetate for 90 days to induce glucocorticoid-induced osteoporosis...
April 20, 2017: Planta Medica
https://www.readbyqxmd.com/read/28426898/improving-myoblast-differentiation-on-electrospun-poly-%C3%AE%C2%B5-caprolactone-scaffolds
#4
Phammela N Abarzúa-Illanes, Cristina Padilla, Andrea Ramos, Mauricio Isaacs, Jorge Ramos-Grez, Hugo C Olguín, Loreto M Valenzuela
Polymer scaffolds are used as an alternative to support tissue regeneration when it does not occur on its own. Cell response on polymer scaffolds is determined by factors such as polymer composition, topology, and the presence of other molecules. We evaluated the cellular response of murine skeletal muscle myoblasts on aligned or unaligned fibers obtained by electrospinning poly(ε-caprolactone) (PCL), and blends with poly(lactic-co-glycolic acid) (PLGA) or decorin, a proteoglycan known to regulate myogenesis...
April 20, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28425161/atorvastatin-treatment-modulates-p16-promoter-methylation-to-regulate-p16-expression
#5
Boqian Zhu, Yaoyao Gong, Gaoliang Yan, Dong Wang, Qingjie Wang, Yong Qiao, Jiantong Hou, Bo Liu, Chengchun Tang
Intimal hyperplasia, the key event of artery restenosis, was a result of cell proliferation and cell migration. Atorvastatin experts an inhibitory effect on cell proliferation and migration but its mechanism remains largely unknown. p16, as a well-known tumor suppressor, was also reported to suppress cell growth and migration, but with vague mechanism. In this study, we demonstrated atorvastatin represses cell proliferation and migration in vascular smooth muscle cells (VSMCs), which process is mediated by p16...
April 20, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28423914/current-views-on-neuropeptide-y-and-diabetes-related-atherosclerosis
#6
Wei-Wei Sun, Ping Zhu, Yan-Chuan Shi, Chen-Liang Zhang, Xu-Feng Huang, Shi-Yu Liang, Zhi-Yuan Song, Shu Lin
Diabetes-induced atherosclerotic cardiovascular disease is the leading cause of death of diabetic patients. Neuronal regulation plays a critical role in glucose metabolism and cardiovascular function under physiological and pathological conditions, among which, neurotransmitter neuropeptide Y has been shown to be closely involved in these two processes. Elevated central neuropeptide Y level promotes food intake and reduces energy expenditure, thereby increasing adiposity. Neuropeptide Y is co-localized with noradrenaline in central and sympathetic nervous systems...
April 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28415704/maternal-exposure-to-di-n-butyl-phthalate-dbp-induces-renal-fibrosis-in-adult-rat-offspring
#7
Yi-Ping Zhu, Lei Chen, Xing-Jie Wang, Qi-Heng Jiang, Xiao-Yu Bei, Wen-Lan Sun, Shu-Jie Xia, Jun-Tao Jiang
This study was to determine the impact of maternal exposure to di-n-butyl phthalate (DBP) on renal development and fibrosis in adult offspring. Pregnant rats received DBP at a dose of 850 mg/kg BW/day by oral perfusion during gestational days 14-18. In DBP exposed newborn offspring, gross observation and histopathological examination revealed the dysplasia of kidney. The expression of genes related to renal development was also changed. In DBP exposed adult offspring, histopathological examination and Masson's trichrome staining revealed the pathological changes of renal fibrosis...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28408927/activities-of-amphioxus-gh-like-protein-in-osmoregulation-insight-into-origin-of-vertebrate-gh-family
#8
Mengyang Li, Chengyan Jiang, Yu Zhang, Shicui Zhang
GH is known to play an important role in both growth promotion and osmoregulation in vertebrates. We have shown that amphioxus possesses a single GH-like hormone (GHl) gene encoding a functional protein capable of promoting growth. However, if GHl can mediate osmoregulation remains open. Here, we demonstrated clearly that GHl increased not only the survival rate of amphioxus but also the muscle moisture under high salinity. Moreover, GHl induced the expression of both the ion transporter Na(+)-K(+)-ATPase (NKA) and Na(+)-K(+)-2Cl(-) cotransporter (NKCC) in the gill as well as the mediator of GH action IGFl in the hepatic caecum, indicating that GHl fulfills this osmoregulatory activity through the same mechanisms of vertebrate GH...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28408888/prevention-of-bleomycin-induced-pulmonary-inflammation-and-fibrosis-in-mice-by-paeonol
#9
Meng-Han Liu, An-Hsuan Lin, Hsin-Kuo Ko, Diahn-Warng Perng, Tzong-Shyuan Lee, Yu Ru Kou
Pulmonary fibrosis is a severe and progressive disease that is characterized by an abnormal deposition of extracellular matrix, such as collagens. The pathogenesis of this disease may be initiated by oxidative damage of lung epithelial cells by fibrogenic stimuli, leading to lung inflammation, which in turn promotes various lung fibrotic responses. The profibrogenic effect of transforming growth factor-β1 (TGF-β1) on lung fibroblasts is crucial for the pathogenesis of this disease. Paeonol, the main phenolic compound present in the Chinese herb Paeonia suffruticosa, has antioxidant and anti-inflammatory properties...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28404522/observations-on-the-relationship-between-anisometropia-amblyopia-and-strabismus
#10
Earl L Smith, Li-Fang Hung, Baskar Arumugam, Janice M Wensveen, Yuzo M Chino, Ronald S Harwerth
We investigated the potential causal relationships between anisometropia, amblyopia and strabismus, specifically to determine whether either amblyopia or strabismus interfered with emmetropization. We analyzed data from non-human primates that were relevant to the co-existence of anisometropia, amblyopia and strabismus in children. We relied on interocular comparisons of spatial vision and refractive development in animals reared with 1) monocular form deprivation; 2) anisometropia optically imposed by either contact lenses or spectacle lenses; 3) organic amblyopia produced by laser ablation of the fovea; and 4) strabismus that was either optically imposed with prisms or produced by either surgical or pharmacological manipulation of the extraocular muscles...
April 18, 2017: Vision Research
https://www.readbyqxmd.com/read/28400207/the-safety-and-efficacy-of-growth-hormone-secretagogues
#11
REVIEW
John T Sigalos, Alexander W Pastuszak
INTRODUCTION: Growth hormone (GH) increases lean body mass, decreases fat mass, increases exercise tolerance and maximum oxygen uptake, enhances muscle strength, and improves linear growth. Long-term studies of GH administration offer conflicting results on its safety, which has led to strict Food and Drug Administration criteria for GH use. The potential drawbacks of exogenous GH use are believed to be due in part to impaired regulatory feedback. AIM: To review the literature on GH secretagogues (GHSs), which include GH-releasing peptides and the orally available small-molecule drug ibutamoren mesylate...
April 8, 2017: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/28396837/myostatin-promotes-tenogenic-differentiation-of-c2c12-myoblast-cells-through-smad3
#12
Kazutaka Uemura, Masanori Hayashi, Toshiro Itsubo, Ayumu Oishi, Hiroko Iwakawa, Masatoshi Komatsu, Shigeharu Uchiyama, Hiroyuki Kato
Myostatin, a member of the transforming growth factor-β (TGF-β) superfamily, is expressed in developing and adult skeletal muscle and negatively regulates skeletal muscle growth. Recently, myostatin has been found to be expressed in tendons and increases tendon fibroblast proliferation and the expression of tenocyte markers. C2C12 is a mouse myoblast cell line, which has the ability to transdifferentiate into osteoblast and adipocyte lineages. We hypothesized that myostatin is capable of inducing tenogenic differentiation of C2C12 cells...
April 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28394882/mir-4417-targets-tripartite-motif-containing-35-trim35-and-regulates-pyruvate-kinase-muscle-2-pkm2-phosphorylation-to-promote-proliferation-and-suppress-apoptosis-in-hepatocellular-carcinoma-cells
#13
Lijie Song, Weijie Zhang, Zhiwei Chang, Yanfeng Pan, Hong Zong, Qingxia Fan, Liuxing Wang
BACKGROUND MicroRNAs (miRNAs) are a class of small non-coding RNAs that are strongly involved in various types of carcinogenesis, including hepatocellular carcinoma (HCC). This study aimed to clarify whether miR-4417 promotes HCC growth by targeting TRIM35 and regulating PKM2 phosphorylation. MATERIAL AND METHODS Online software, including TargetScan and miRanda, was used to predict the potential target of miR-4417. Real-Time PCR (qRT-PCR) and Western blot assays were performed to detect the expression levels of mRNA and protein, respectively...
April 10, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28391389/combination-therapy-with-omega-3-fatty-acids-plus-tamsulocin-and-finasteride-in-the-treatment-of-men-with-lower-urinary-tract-symptoms-luts-and-benign-prostatic-hyperplasia-bph
#14
Alireza Ghadian, Mehran Rezaei
PURPOSE: Inflammation and Cyclooxygenase-2 (COX-2) as a part of it are common in BPH specimens and may play a role in the pathogenesis of the disease through cytokines that promote cell growth or lead to smooth muscle contraction. The aim of this study is to analyze whether combination therapy with omega-3 fatty acids, which have anti-inflammatory and COX-2 inhibitory effects, and tamsulocin plus finasteride offers an advantage compared to tamsulocin plus finasteride therapy in patients with BPH...
April 8, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28390870/insulin-not-glutamine-dipeptide-reduces-lipases-expression-and-prevents-fat-wasting-and-weight-loss-in-walker-256-tumor-bearing-rats
#15
Hely de Morais, Flaviane de Fatima Silva, Francemilson Goulart da Silva, Milene Ortiz Silva, Maria Fernanda Rodrigues Graciano, Maria Isabel Lovo Martins, Ângelo Rafael Carpinelli, Tânia Longo Mazucco, Roberto Barbosa Bazotte, Helenir Medri de Souza
Cachexia is the main cause of mortality in advanced cancer patients. We investigated the effects of insulin (INS) and glutamine dipeptide (GDP), isolated or associated, on cachexia and metabolic changes induced by Walker 256 tumor in rats. INS (NPH, 40 UI/kg, sc) or GDP (1.5g/kg, oral gavage) was once-daily administered during 11 days after tumor cell inoculation. GDP, INS or INS+GDP treatments did not influence the tumor growth. However, INS and INS+GDP prevented retroperitoneal fat wasting and body weight loss of tumor-bearing rats...
April 6, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28386846/different-effects-of-neuropeptide-y-on-proliferation-of-vascular-smooth-muscle-cells-via-regulation-of-geminin
#16
Zhou-Qin Jiang, You-Li Zhou, Xia Chen, Lin-Yu Li, Shi-Yu Liang, Shu Lin, Mao-Qin Shu
The proliferation-promoting effect of neuropeptide Y (NPY) always functions in low-serum-cultured vascular smooth muscle cells (VSMCs), and the phenotypic switch of VSMCs is regulated by concentrations of serum. Whether the property of the NPY proliferative effect in VSMCs relies on phenotype of VSMCs is unclear. We aimed to explore the role of NPY on proliferation of different VSMC phenotypes in the pathogenesis of atherosclerosis. By stimulating A10 cells with 200 nM NPY in 0.5 or 10% serum, 3H-thymidine and 5-ethynyl-2'-deoxyuridine (EdU) and CCK8 measurements were used to detect VSMC proliferation...
April 6, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28382093/microrna-222-expression-as-a-predictive-marker-for-tumor-progression-in-hormone-receptor-positive-breast-cancer
#17
Song-Hee Han, Hyun Jeong Kim, Jae Moon Gwak, Mimi Kim, Yul Ri Chung, So Yeon Park
PURPOSE: The microRNA-221/222 (miR-221/222) gene cluster has been reported to be associated with the promotion of epithelial-mesenchymal transition (EMT), downregulation of estrogen receptor-α, and tamoxifen resistance in breast cancer. We studied the expression of miR-222 in human breast cancer samples to analyze its relationship with clinicopathologic features of the tumor, including estrogen receptor status, expression of EMT markers, and clinical outcomes. METHODS: Quantitative real-time polymerase chain reaction was performed to detect the expression of miR-222 in 197 invasive breast cancers...
March 2017: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28380530/effects-of-anabolic-implants-and-ractopamine-hcl-on-muscle-fiber-morphometrics-collagen-solubility-and-tenderness-of-beef-longissimus-lumborum-steaks
#18
S M Ebarb, K J Phelps, J S Drouillard, K R Maddock-Carlin, M A Vaughn, D D Burnett, J A Noel, C L Van Bibber-Krueger, C B Paulk, D M Grieger, J M Gonzalez
The objective of this study was to examine the effects of growth-promoting technologies (GP) and postmortem aging on longissimus lumborum muscle fiber cross-sectional area (CSA), collagen solubility, and their relationship to meat tenderness. Two groups of black-hided crossbred feedlot heifers (group 1: = 33, initial BW 430 ± 7 kg; group 2: = 32, initial BW 466 ± 7 kg) were blocked by BW and assigned to 1 of 3 treatments consisting of: no implant and no ractopamine hydrochloride (CON; = 21); implant, no ractopamine hydrochloride (IMP; = 22); implant and ractopamine hydrochloride (COMBO; = 22)...
March 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28379958/il-15-regulates-migration-invasion-angiogenesis-and-genes-associated-with-lipid-metabolism-and-inflammation-in-prostate-cancer
#19
Krizia Rohena-Rivera, María M Sánchez-Vázquez, Diana A Aponte-Colón, Ingrid S Forestier-Román, Mario E Quintero-Aguiló, Magaly Martínez-Ferrer
Prostate cancer (PCa) is the most commonly diagnosed non-cutaneous cancer. In the United States it is second leading cause of cancer related deaths in men. PCa is often treated via radical prostatectomy (RP). However, 15-30% of the patients develop biochemical recurrence (i.e. increased serum prostate specific antigen (PSA) levels). Interleukin-15 (IL-15) is a secreted cytokine found over expressed in patients with recurrence-free survival after RP. In our study, we aim to determine the role of IL-15 in PCa using in vitro and in vivo models, and gene expression analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28374913/liposomes-as-a-putative-tool-to-investigate-naadp-signaling-in-vasculogenesis
#20
Francesca Di Nezza, Estella Zuccolo, Valentina Poletto, Vittorio Rosti, Antonio De Luca, Francesco Moccia, Germano Guerra, Luigi Ambrosone
Nicotinic acid adenine dinucleotide phosphate (NAADP) is the newest discovered intracellular second messengers, which is able to release Ca(2+) stored within endolysosomal (EL) vesicles. NAADP-induced Ca(2+) signals mediate a growing number of cellular functions, ranging from proliferation to muscle contraction and differentiation. Recently, NAADP has recently been shown to regulate angiogenesis by promoting endothelial cell growth. It is, however, still unknown whether NAADP stimulates proliferation also in endothelial progenitor cells, which are mobilized in circulation after an ischemic insult to induce tissue revascularization...
April 4, 2017: Journal of Cellular Biochemistry
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