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Cellular Physiology and Biochemistry

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https://www.readbyqxmd.com/read/27322819/angiotensin-ii-enhances-proliferation-and-inflammation-through-at1-pkc-nf-x03ba-b-signaling-pathway-in-hepatocellular-carcinoma-cells
#1
Yuanyuan Ji, Zhidong Wang, Zongfang Li, Aijun Zhang, Yaofeng Jin, Haiyan Chen, Xiaofeng Le
BACKGROUND/AIMS: The pathogenesis of hepatocellular carcinoma (HCC) is mainly characterized by persistent cycles of liver injury, inflammation, and compensatory hepatocyte proliferation. Angiotensin II (Ang II) behaves as an endogenous pro-inflammatory molecule playing a significant role in HCC, however, the molecular link between Ang II, proliferation and inflammation remains unclear. METHODS: Human HCC cell lines (HepG-2, SMMC-7721, MHCC97-H) were incubated with Ang II at the indicated concentrations for 24, 48, 72 h...
June 20, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006787/role-of-mir-215-in-hirschsprung-s-disease-pathogenesis-by-targeting-siglec-8
#2
Hao Lei, Hongxing Li, Hua Xie, Chunxia Du, Yankai Xia, Weibing Tang
BACKGROUND/AIMS: Hirschsprung's disease (HSCR), known as aganglionosis, is an infrequent congenital gut motility disorder characterized by absence of enteric neurons. In this study, we focus on the role of the intronic miR-215 and its host gene isoleucyl-tRNA synthetase 2 (IARS2) in the pathogenesis of HSCR. METHODS: Quantitative real time PCR and Western blot were used to detect the miRNA, mRNAs, and proteins levels. The dual-luciferase reporter gene assay confirmed the direct regulation of the specific mRNA and miRNAs in cell lines...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006785/mir-155-is-involved-in-renal-ischemia-reperfusion-injury-via-direct-targeting-of-foxo3a-and-regulating-renal-tubular-cell-pyroptosis
#3
Haoyu Wu, Tao Huang, Liang Ying, Conghui Han, Dawei Li, Yao Xu, Ming Zhang, Shan Mou, Zhen Dong
BACKGROUND/AIMS: Ischemia/reperfusion injury (IRI) plays a crucial role in renal transplantation and can cause renal failure associated with pyroptosis, a pro-inflammatory-induced programmed cell death. Small endogenous non-coding RNAs have been shown to be involved in renal ischemia/reperfusion injury. This study was performed to investigate which miRNAs regulate pyroptosis in response to renal ischemia/reperfusion injury and determine the mechanism underlying this regulation. METHODS: An in vivo rat model of renal IRI was established, and the serum and kidneys were harvested 24 h after reperfusion to assess renal function and histological changes...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006783/altered-long-and-short-range-functional-connectivity-in-patients-with-betel-quid-dependence-a-resting-state-functional-mri-study
#4
Tao Liu, Jianjun Li, Zhiqiang Zhang, Qiang Xu, Guangming Lu, Shixiong Huang, Mengjie Pan, Feng Chen
OBJECTIVE: Addiction is a chronic relapsing brain disease. Brain structural abnormalities may constitute an abnormal neural network that underlies the risk of drug dependence. We hypothesized that individuals with Betel Quid Dependence (BQD) have functional connectivity alterations that can be described by long- and short-range functional connectivity density(FCD) maps. METHODS: We tested this hypothesis using functional magnetic resonance imaging (fMRI) data from subjects of the Han ethnic group in Hainan, China...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006781/allogeneic-compact-bone-derived-mesenchymal-stem-cell-transplantation-attenuates-the-severity-of-idiopathic-pneumonia-syndrome-in-a-murine-bone-marrow-transplantation-model
#5
Shu-Kai Qiao, Han-Yun Ren, Yong-Jin Shi, Wei Liu
BACKGROUND/AIMS: Idiopathic pneumonia syndrome (IPS) is a serious and life-threatening lung complication following allogeneic hematopoietic stem cell transplantation (allo-HSCT) and currently no effective therapies exist. This study was designed to determine whether transplantation of allogeneic murine compact bone derived- mesenchymal stem cells (CB-MSCs) could prevent the development of IPS. METHODS: We tested the effects of CB-MSCs transplantation on IPS using an established murine model of C57BL/6 (H-2b)→BALB/c (H-2d)...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006780/resveratrol-improves-cognitive-impairment-by-regulating-apoptosis-and-synaptic-plasticity-in-streptozotocin-induced-diabetic-rats
#6
Zhiyan Tian, Jinhua Wang, Ming Xu, Yan Wang, Miao Zhang, Yuying Zhou
AIMS: To investigate the effects of resveratrol on cognitive impairment in streptozotocin (STZ)-induced diabetic rats and to explore the mechanisms of that phenomenon. METHODS: Sixty healthy male Sprague Dawley rats were randomly divided into four groups: normal control group (Con group, n = 15), Res group (normal Sprague Dawley rats treated with resveratrol, n = 15), diabetes mellitus group (DM group, n = 15) and DM + Res group (diabetic rats treat with resveratrol, n = 15)...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006775/fgf-2-transcriptionally-down-regulates-the-expression-of-bnip3l-via-pi3k-akt-foxo3a-signaling-and-inhibits-necrosis-and-mitochondrial-dysfunction-induced-by-high-concentrations-of-hydrogen-peroxide-in-h9c2-cells
#7
Qian Chen, Xiaosong Chen, Conghui Han, Ying Wang, Tao Huang, Yingdong Du, Zhen Dong
BACKGROUND/AIMS: Cardiovascular disease is a growing major global public health problem. Necrosis is one of the main forms of cardiomyocyte death in heart disease. Oxidative stress is regarded as one of the key regulators of cardiac necrosis, which eventually leads to cardiovascular disease. Many pharmacological and in vitro studies have suggested that FGF-2 can act directly on cardiomyocytes to maintain the integrity and function of the myocardium and prevent damage during oxidative stress...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006772/involvement-of-sphingosine-1-phosphate-in-palmitate-induced-non-alcoholic-fatty-liver-disease
#8
Frdoos Al Fadel, Susann Fayyaz, Lukasz Japtok, Burkhard Kleuser
BACKGROUND/AIMS: Ectopic lipid accumulation in hepatocytes has been identified as a risk factor for the progression of liver fibrosis and is strongly associated with obesity. In particular, the saturated fatty acid palmitate is involved in initiation of liver fibrosis via formation of secondary metabolites by hepatocytes that in turn activate hepatic stellate cells (HSCs) in a paracrine manner. METHODS: α-smooth muscle actin-expression (α-SMA) as a marker of liver fibrosis was investigated via western blot analysis and immunofluorescence microscopy in HSCs (LX-2)...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006766/is-overexpression-of-ki-67-a-prognostic-biomarker-of-upper-tract-urinary-carcinoma-a-retrospective-cohort-study-and-meta-analysis
#9
Bo Fan, Hongshuo Zhang, Huidan Jin, Yu Gai, Honglong Wang, Huafeng Zong, Mingyu Jin, Hao Yang, Shuping Wan, Jiabin Zhu, Siyao Xu, Jianbo Wang, Deyong Yang, Xishuang Song
BACKGROUND: Upper tract urinary carcinoma (UTUC) is a relatively uncommon but aggressive disease. The Ki-67 antigen is a classic marker of cellular proliferation, but there is still controversy regarding the significance and importance of Ki-67 in tumor progression. METHODS: In this study, we first detected Ki-67 expression in UTUC patients by immunohistochemistry (IHC). Subsequently, we quantitatively combined the results with those from the published literature in a meta-analysis after searching several databases...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28006762/h2s-attenuates-lps-induced-acute-lung-injury-by-reducing-oxidative-nitrative-stress-and-inflammation
#10
Hong-Xia Zhang, Shu-Juan Liu, Xiao-Lu Tang, Guo-Li Duan, Xin Ni, Xiao-Yan Zhu, Yu-Jian Liu, Chang-Nan Wang
BACKGROUND: Hydrogen sulfide (H2S), known as the third endogenous gaseous transmitter, has received increasing attention because of its diverse effects, including angiogenesis, vascular relaxation and myocardial protection.We aimed to investigate the role of H2S in oxidative/nitrative stress and inflammation in acute lung injury (ALI) induced by endotoxemia. METHODS: Male ICR mice were divided in six groups: (1) Control group; (2) GYY4137treatment group; (3) L-NAME treatment group; (4) lipopolysaccharide (LPS) treatment group; (5) LPS with GYY4137 treatment group; and (6) LPS with L-NAME treatment group...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997926/exogenous-hydrogen-sulfide-attenuates-high-glucose-induced-cardiotoxicity-by-inhibiting-nlrp3-inflammasome-activation-by-suppressing-tlr4-nf-%C3%AE%C2%BAb-pathway-in-h9c2-cells
#11
Zena Huang, Xiaodong Zhuang, Chuli Xie, Xun Hu, Xiaobian Dong, Yue Guo, Shaofen Li, Xinxue Liao
BACKGROUND/AIMS: This study aimed to investigate whether exogenous hydrogen sulfide (H2S) confered cardiac protection against high glucose (HG)-induced injury by inhibiting NLRP3 inflammasome activation via a specific TLR4/NF-κB pathway. METHODS: H9c2 cardiac cells were exposed to 33 mM glucose for 24 h to induce HG-induced cytotoxicity. The cells were pretreated with NaHS (a donor of H2S) before exposure to HG. Cell viability, cell apoptosis, intracellular reactive oxygen species (ROS), mitochondrial membrane potential (MMP), and TLR4, NF-κB, NLRP3 inflammasome, IL-1β, IL-18 and caspase-3 expression were measured by standard methods...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997916/circulating-mir-181a-as-a-potential-novel-biomarker-for-diagnosis-of-acute-myocardial-infarction
#12
Jianbing Zhu, Kang Yao, Qian Wang, Junjie Guo, Hongtao Shi, Leilei Ma, Haibo Liu, Wei Gao, Yunzeng Zou, Junbo Ge
BACKGROUND: In this study, we tested the hypothesis that miR-181a levels increase during acute myocardial infarction. We investigated circulating miR-181a as a potential novel biomarker for early diagnosis of acute myocardial infarction (AMI). METHODS: From June 2014 to June 2016, 120 consecutive eligible patients with AMI (n = 60) or unstable angina (UA; n = 60) and 60 control subjects were enrolled. Plasma miR-181a levels were determined by quantitative reverse transcriptase-polymerase chain reaction...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997912/analysis-of-the-indicating-value-of-cardiac-troponin-i-tumor-necrosis-factor-%C3%AE-interleukin-18-mir-1-and-mir-146b-for-viral-myocarditis-among-children
#13
Dahui Wang, Taijun Li, Hongjie Cui, Yanming Zhang
BACKGROUND/AIMS: The primary objective of this study is to evaluate the diagnosis effect of serum protein factors and microRNAs for children suffering from viral myocarditis (VMC). METHODS: The expression levels of serum cardiac troponin I (cTnI), interleukin-18 (IL-18) and tumor necrosis factor-α (TNF-α) in both VMC and control groups were examined by using the Elisa Kit. The expression levels of miR-1 and miR-146b were measured through RT-PCR. Subsequently, the Receiver Operating Characteristic (ROC) curves were drawn based on the diagnostic results of VMC...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997911/inhibition-of-glutathione-synthesis-induced-by-exhaustive-running-exercise-via-the-decreased-influx-rate-of-l-cysteine-in-rat-erythrocytes
#14
Yanlian Xiong, Yanlei Xiong, Shuai Zhou, Zhenhai Yu, Dongmei Zhao, Zhiqiang Wang, Yuling Li, Jingtong Yan, Yu Cai, Wenqian Zhang
BACKGROUND/AIMS: The main purpose of this study was to investigate the effect of exhaustive exercise on L-cysteine uptake and its effect on erythrocyte glutathione (GSH) synthesis and metabolism. METHODS: Rats were divided into three groups: sedentary control (C), exhaustive running exercise (ERE) and moderate running exercise (MRE) (n=12 rats/group). We determined the L-cysteine efflux and influx in vitro in rat erythrocytes and its relationship with GSH synthesis...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997910/effects-of-cdkn2a-p16ink4a-p14arf-over-expression-on-proliferation-and-migration-of-human-melanoma-a375-cells
#15
Ming Bai, Nan-Ze Yu, Fei Long, Cheng Feng, Xiao-Jun Wang
OBJECTIVE: This study aims to investigate the effects of CDKN2A (p16INK4A/p14ARF) over-expression on the proliferation and migration of human melanoma A375 cells. METHODS: Melanoma tissues and pigmented nevi tissues were collected. Human melanoma A375 cells were transfected by CDKN2A (p16INK4A) and CDKN2A (p14ARF) over-expressing vectors and then assigned into blank, negative control (NC), p16INK4A and p14ARF groups. The expression of CDKN2A (p16INK4A) and CDKN2A (p14ARF) mRNA and protein was detected by qRT-PCR and Western blotting...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997909/eryptosis-as-an-underlying-mechanism-in-systemic-lupus-erythematosus-related-anemia
#16
Peipei Jiang, Maohong Bian, Wenjuan Ma, Chunqiu Liu, Peng Yang, Bangqiang Zhu, Yuanhong Xu, Meijuan Zheng, Jinpin Qiao, Zongwen Shuai, Xueyong Zhou, Dake Huang
BACKGROUND: The progression of systemic lupus erythematosus (SLE) leads to anemia in patients, adversely affecting prognosis. The diverse causes of anemia may include excessive eryptosis or premature suicidal erythrocyte death characterized by cell shrinkage and phosphatidylserine (PS) exposure on the cell surface. The present study explored if SLE enhances eryptosis and the underlying mechanisms. MATERIALS AND METHODS: Eryptosis was assessed using flow cytometry in healthy volunteers (n = 20) and anemic patients hospitalized for SLE (n = 22), for parameters including PS exposure, cell volume, cytosolic calcium ion (Ca2+) levels and reactive oxygen species (ROS) and ceramide abundance...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997908/circulating-long-non-coding-rnas-act-as-biomarkers-for-predicting-131i-uptake-and-mortality-in-papillary-thyroid-cancer-patients-with-lung-metastases
#17
Zhong-Ling Qiu, Chen-Tian Shen, Zhen-Kui Sun, Wei-Jun Wei, Xin-Yun Zhang, Hong-Jun Song, Quan-Yong Luo
PURPOSE: The aims of the current study were to explore plasma lncRNAs as a novel biomarker panel for the diagnosis of non-131I-avid lung metastases of PTC and to investigate the plasma lncRNA expression levels associated with survival in PTC patients with lung metastases. METHODS: The expression of lncRNAs was examined using an lncRNA microarray chip. The lncRNAs with the most significant difference in expression between PTC patients with non-131I-avid lung metastases and PTC patients with 131I-avid lung metastases were verified by quantitative reverse-transcription polymerase chain reaction...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997907/improvement-of-huangqi-decoction-on-endothelial-dysfunction-in-5-6-nephrectomized-rats
#18
Shuang Chu, Li Wang, Xiao-Dong Mao, Wen Peng
BACKGROUND/AIMS: Endothelial dysfunction is a major factor in the progression of chronic kidney disease, which correlates with oxidative stress and NO deficiency. Huangqi decoction (HQD) is a potential anti-oxidant ingredient in renoprotection. However, the underlying mechanisms remained identified. Therefore, we investigated whether HQD exhibit improvement in endothelial dysfunction in the 5/6 nephrectomy (Nx) rat model. METHODS: Male Wistar rats (180 - 250 g) were divided into sham, Nx and Nx + HQD (0...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997906/effects-of-leptin-on-na-ca2-exchanger-in-pc12-cells
#19
Zijuan Zhang, Shuguang Sun, Caixia Du, Wei Li, Juan Zhang, Yanqin Zhu, Peilin Liu, Ying Xing
BACKGROUND/AIMS: Alzheimer's disease (AD) is known to be related to alterations in neuronal intracellular calcium activity ([Ca2+]i). The present study revealed the distinct role of leptin in Na+/Ca2+-exchanger activity. METHODS: [Ca2+]i was determined utilizing Fura-2 fluorescence. The activity of NCX was measured by removal of extracellular Na+ in the presence of external Ca2+. Na+/Ca2+-exchanger activity was further quantified from whole cell currents following removal of extracellular Na+...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997905/blocking-mammalian-target-of-rapamycin-mtor-attenuates-hif-1%C3%AE-pathways-engaged-vascular-endothelial-growth-factor-vegf-in-diabetic-retinopathy
#20
Jie Wei, Hua Jiang, Hongrui Gao, Guangjie Wang
BACKGROUND/AIMS: Prior studies demonstrate that hypoxia inducible factor subtype 1α (HIF-1α) in retinal tissues is involved in development of diabetic retinopathy (DR). In this report, we particularly examined the role played by mammalian target of rapamycin (mTOR) in regulating expression of HIF-1α and its downstream pathway, namely vascular endothelial growth factor (VEGF). METHODS: Streptozotocin (STZ) was systemically injected to induce hyperglycemia in rats...
2016: Cellular Physiology and Biochemistry
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