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F Q Zhou, D K He, Y R Shao, J Shen
Objective: To investigate the effects of methylprednisolone on NOD-like receptor hot protein domain-associated protein 3 (NLRP3) inflammasome in phosgene-induced acute lung injury. Methods: Rats were randomly divided into four groups, 10 rats in Air group (inhalation of air of the same volume as the phosgene group) , 10 rats in Phosgene group (inhalation of 8.33 mg/L with 100% purity phosgene for 5 min) , 10 rats in Saline control group (inhalation of the same dose of phosgene and 2 mg/kg saline via tail vein injection one hour later) , 10 rats in MP group (inhalation of the same dose of phosgene and 2 mg/kg MP via tail vein injection one hour later) ...
August 20, 2018: Chinese Journal of Industrial Hygiene and Occupational Diseases
R Qi, C G Lei, Y X Bai, X Xing
Objective: To study the effect and mechanism of angiotensin (Ang II) on the proliferation of human hepatocellular carcinoma HepG2 cells. Methods: The effects of different concentrations of Ang II's (10(-8)-10(-4) mol/L) on proliferated hepatocellular carcinoma HepG2 cells were detected by CCK-8 assay. The expression of angiotensin II type 1 receptor (AT1) protein and activation of ERK1/2 protein in hepatocellular carcinoma HepG2 cells after processing with Ang II were assayed by Western blot. The cells were pretreated with candesartan (AT1 receptor antagonist), sorafenib (Raf kinase inhibitor) and PD98059 (ERK1/2 inhibitor) for 1...
August 20, 2018: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
Miguel Guerra, Adelino F Leite-Moreira
Intraventricular pressure gradients (IVPGs) play a physiological role in normal filling and emptying of the left ventricle. Regional alterations in IVPGs might be an important factor in the characteristic changes that occur in intraventricular flow in specific cardiac disorders and may contribute to and represent an early sign of ventricular dysfunction. Diastolic IVPGs, a marker of normal ventricular filling, and systolic IVPGs, a marker of normal ventricular emptying, can be attenuated, lost entirely or even reversed when ventricular emptying is opposed by afterload elevations, after regional acute ischaemia and in failing hearts...
January 2018: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
Jun-Feng Huo, Xiao-Bing Chen
Malignant glioma is a severe type of brain tumor with a grim prognosis. The occurrence of resistance compromises the efficacy of chemotherapy for glioma. Long noncoding RNA growth arrest-specific 5 (GAS5) has recently become an attractive target for cancer therapy by regulating cell growth, invasion, and migration. Nevertheless, its role in glioma chemoresistance remains elusive. In the current study, the expression of GAS5 was decreased in glioma cell lines, and lower levels of GAS5 were observed in U138 and LN18 glioma cells that had low sensitivity to cisplatin...
October 14, 2018: Journal of Cellular Biochemistry
Hsiao-Chi Tsai, An-Chen Chang, Chun-Hao Tsai, Yuan-Li Huang, Lijun Gan, Chi-Kuan Chen, Shih-Chia Liu, Te-Yang Huang, Yi-Chin Fong, Chih-Hsin Tang
In recent years, osteosarcoma survival rates have failed to improve significantly with conventional treatment modalities because of the development of chemotherapeutic resistance. The human breast cancer resistance protein/ATP binding cassette subfamily G member 2 (BCRP/ABCG2), a member of the ATP-binding cassette family, uses ATP hydrolysis to expel xenobiotics and chemotherapeutics from cells. CCN family member 2 (CCN2) is a secreted protein that modulates the biological function of cancer cells, enhanced ABCG2 protein expression and activation in this study via the α6β1 integrin receptor and increased osteosarcoma cell viability...
October 14, 2018: Journal of Cellular Physiology
Walaa Hassan Nazmy, Eman Abdelmonem Elbassuoni, Fatma Farrag Ali, Rehab Ahmed Rifaai
Diabetes mellitus (DM) is closely associated with male infertility and sexual dysfunction. Recent data indicate that the proinsulin C-peptide (CP) exerts important physiological effects and shows the characteristics of an endogenous peptide hormone. So, this study was done to investigate the effect of C-peptide with or without insulin treatment on testicular function and architecture in diabetic rats. Rats were divided into the following groups: control, diabetic, and diabetic groups treated with either CP alone or combined with insulin...
October 14, 2018: Journal of Cellular Physiology
Arturo Bevilacqua, Jessica Dragotto, Alessandro Giuliani, Mariano Bizzarri
Mice exposed to continuous light undergo functional and histological changes that mimic those of human Polycystic Ovary Syndrome (PCOS). We herein induced the syndrome by exposing 30-day-old females to 10 weeks of permanent light. Ovarian morphology and histology, as well as reproductive parameters (time of observed pregnancy/delivery) were investigated. Ovaries of PCOS-modeled mice showed lack of tertiary follicles and corpora lutea, altered ovarian architecture, and increased thickness of the theca layer...
October 14, 2018: Journal of Cellular Physiology
Yasen Aimaiti, Xin Jin, Yue Shao, Wei Wang, Dewei Li
Hepatic stellate cells (HSCs) play an important microenvironmental role in hepatic progenitor cells (HPCs) differentiation fate. To reveal the specific mechanism of HSCs induced by transforming growth factor β1 (TGF-β1) signaling in HPCs differentiation process, we used Knockin and knockdown technologies induced by lentivirus to upregulate or downregulate TGF-β1 level in mouse HSCs (mHSCs) (mHSCs-TGF-β1 or mHSCs-TGF-βR1sih3). Primary mouse HPCs (mHPCs) were isolated and were cocultured with mHSCs-TGF-β1 and mHSCs-TGF-βR1sih3 for 7 days...
October 14, 2018: Journal of Cellular Physiology
Liang Huang, Hongcheng Lin, Liang Kang, Pinzhu Huang, Jun Huang, Jinlin Cai, Zhenyu Xian, Peixuan Zhu, Meijin Huang, Liping Wang, Cory J Xian, Jianping Wang, Jianghui Dong
Long noncoding RNAs (lncRNAs) play a critical role in the initiation and progression of colorectal cancer (CRC), but little is known about the function of lncRNAs in the colorectal liver metastasis (CLM). This study was designed to identify specific lncRNAs correlating to liver metastasis of CRC, and to further assess their clinical value. Seventeen patients with primary CRC lesions, adjacent normal mucosa, and synchronous liver metastases lesions were divided into discovery set (six patients) and test set (11 patients)...
October 14, 2018: Journal of Cellular Physiology
Vishwanatha K Rao, Gerardo Zavala, Abhijit Deb Roy, Richard E Mains, Betty A Eipper
The biosynthetic and endocytic pathways of secretory cells are characterized by progressive luminal acidification, a process which is crucial for posttranslational modifications and membrane trafficking. This progressive fall in luminal pH is mainly achieved by the vacuolar-type-H+ ATPase (V-ATPase). V-ATPases are large, evolutionarily ancient rotary proton pumps that consist of a peripheral V1 complex, which hydrolyzes ATP, and an integral membrane V0 complex, which transports protons from the cytosol into the lumen...
October 14, 2018: Journal of Cellular Physiology
Feng-Na Yu, Ming-Lan Hu, Xin-Fang Wang, Xiang-Ping Li, Bei-Hao Zhang, Xiao-Qing Lu, Rui-Qiang Wang
As one major diabetic complication, diabetic nephropathy (DN) has been reported to be associated with various kinds of microRNA (miRNA). Thus, we conducted this study to explore the potential of miR-370 in a rat model of DN through investigation of mesangial cell proliferation and extracellular matrix (ECM). A total of 40 healthy adult male Sprague-Dawley rats were enrolled and assigned into normal (n = 10) and DN ( n = 30, DN rat model) groups. Dual-luciferase reporter assay was performed for the targeting relationship between miR-370 and canopy 1 (CNPY1)...
October 14, 2018: Journal of Cellular Physiology
Zhaoju Tian, Shuang Cao, Cheng Li, Mingfang Xu, Huaiqing Wei, Han Yang, Qiyu Sun, Qikui Ren, Le Zhang
PURPOSE: The aim of our study was to validate the sway of long noncoding RNA (lncRNA) plasmacytoma variant translocation 1 (PVT1) on the metabolism and growth of bladder cancer cells by microRNA-31 (miR-31)/cyclin-dependent kinase 1 ( CDK1). METHODS: The Gene Expression Omnibus database was used for analyzing the differentially expressed lncRNA and messenger RNA (mRNA) in bladder cancer tissues, with the highly expressed lncRNA PVT1 and mRNA CDK1 screened out. The expression level of PVT1 was detected by quantitative reverse-transcription polymerase chain reaction, cell viability by Cell Counting Kit-8 assay, cell proliferation and scratch by 5-bromo-2'-deoxyuridine assay, cell migration and invasion by transwell assays, the expression level of CDK1 by immunohistochemistry and western blot analysis, transcription factor targeting by dual-luciferase assay, and the effect of PVT1 on bladder cancer growth by nude mice tumor formation experiment...
October 14, 2018: Journal of Cellular Physiology
Shujue Li, Yu Lan, Wenzheng Wu, Xiaolu Duan, Zhenzhen Kong, Wenqi Wu, Guohua Zeng
The differentiated phenotype of renal tubular epithelial cell exerts significant effect on crystal adherence. Peroxisome proliferator-activated receptor γ (PPARγ) has been shown to be critical for the regulation of cell transdifferentiation in many physiological and pathological conditions; however, little is known about its role in kidney stone formation. In the current study, we found that temporarily high oxalate concentration significantly decreased PPARγ expression, induced Madin Darby Canine Kidney cell dedifferentiation, and prompted subsequent calcium oxalate (CaOx) crystal adhesion in vitro...
October 14, 2018: Journal of Cellular Physiology
Lingzhi Zhong, Haojie Hao, Deyun Chen, Qian Hou, Ziying Zhu, Wenjun He, Sujing Sun, Mengli Sun, Meirong Li, Xiaobing Fu
BACKGROUND: Tissue contraction and the extracellular matrix deposition are part of the pathogenesis of hypertrophic scars. The transcriptional factor NFE2L2 inhibits fibroblast differentiation in idiopathic pulmonary fibrosis and promotes myofibroblast dedifferentiation. Our previous study showed that the transcription factor NFE2L2 was strongly induced on treatment with arsenic trioxide (ATO). OBJECTIVE: The present study sought to investigate the effect of ATO on myofibroblast formation to determine its potential role in hypertrophic scar treatment...
October 14, 2018: Journal of Cellular Physiology
Matt Shirley
Dinoprostone vaginal insert (Cervidil® ; Propess® ), a retrievable vaginal pessary containing 10 mg of dinoprostone [prostaglandin E2 (PGE2 )] in a controlled-release drug delivery device, is approved in many countries worldwide for the initiation (or continuation) of cervical ripening in patients at term prior to labour induction. The device is designed to provide a constant and sustained release of dinoprostone to the cervix to promote the complex processes involved in cervical ripening. The vaginal insert is attached to a retrieval system that facilitates easy removal of the device at the onset of labour or in the event of complications...
October 13, 2018: Drugs
Jae-Hun Jeoung, Berta M Martins, Holger Dobbek
Carbon monoxide dehydrogenases (CODHs) are central players in the biogeochemical carbon monoxide (CO) cycle and have been extensively studied from the ecological level to the structural/molecular level. Of the two types of CODHs, the oxygen-tolerant CODHs use a bimetallic [CuSMo(=O)OH] center connected to the protein via a pyranopterin cofactor, whereas the oxygen-sensitive CODHs contain a [NiFe4 S4 -OHx ]-cluster. Despite the fact that we have a basic understanding of how both types of CODHs use distinct active sites to catalyze the oxidation of CO with water to CO2 , two protons, and two electrons (a reversible reaction in the cases of the oxygen-sensitive CODHs), many questions remain unanswered, especially concerning the electronic structures of the intermediate states...
2019: Methods in Molecular Biology
Jae-Hun Jeoung, Berta M Martins, Holger Dobbek
Carbon monoxide dehydrogenases (CODHs) catalyze the reversible oxidation of CO with water to CO2 , two electrons, and two protons. Two classes of CODHs exist, having evolved from different scaffolds featuring active sites built from different transition metals. The basic properties of both classes are described in this overview chapter.
2019: Methods in Molecular Biology
H F Miranda, P Poblete, F Sierralta, V Noriega, J C Prieto, R J Zepeda
Neuropathic pain is a complication of cancer and diabetes mellitus and the most commonly used drugs in the treatment of the diabetic neuropathic pain have only limited efficacy. The aim of this study was to evaluate the role of the biomarker interleukin-1beta (IL-1ß) in the pharmacological interaction of gabapentin with tramadol in a model of diabetic neuropathic pain. CF-1 male mice, pretreated with 200 mg/kg i.p. of streptozocin (STZ), were used and at day 3 and 7 were evaluated by the hot plate test and the spinal cord level of IL-1ß was determined...
October 13, 2018: Inflammopharmacology
Manoj P Dandekar, Ashwini Saxena, Giselli Scaini, Joo Hyun Shin, Agata Migut, Vijayasree Vayalanellore Giridharan, Yuzhi Zhou, Tatiana Barichello, Jair C Soares, Joao Quevedo, Albert J Fenoy
Deep brain stimulation (DBS) of the medial forebrain bundle (MFB) displays a promising antidepressant effects in patients with treatment-refractory depression; however, a clear consensus on underlying mechanisms is still enigmatic. Herein, we investigated the effects of MFB-DBS on anhedonic-like behavior using the Froot Loops® consumption in a chronic unpredictable mild stress (CUS) model of depression, biochemical estimation of peripheral and central inflammatory cytokines, stress hormone, and brain-derived neurotrophic factor (BDNF)...
October 13, 2018: Molecular Neurobiology
Tiffany A Peterson, Andrew G MacLean
Macrophages, one of the most abundant populations of leukocytes in the body, function as the first line of defense against pathogen invaders. Human Immunodeficiency virus 1 (HIV-1) remains to date one of the most extensively studied viral infections. Naturally occurring lentiviruses in domestic and primate species serve as valuable models to investigate lentiviral pathogenesis and novel therapeutics. Better understanding of the role macrophages play in HIV pathogenesis will aid in the advancement towards a cure...
October 13, 2018: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
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