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transcription factor 7-like 2

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https://www.readbyqxmd.com/read/28330327/role-of-gnb3-net-kcnj11-tcf7l2-and-grl-genes-single-nucleotide-polymorphism-in-the-risk-prediction-of-type-2-diabetes-mellitus
#1
REVIEW
Saliha Rizvi, Syed Tasleem Raza, Qamar Rahman, Farzana Mahdi
Type 2 diabetes (T2DM) is a polygenic metabolic disorder characterized by hyperglycemia occurring as a result of impaired insulin secretion or insulin resistance. Various environmental and genetic factors interact and increase the risk of T2DM and its complications. Among the various genetic factors associated with T2DM, single nucleotide polymorphism in different candidate genes have been studied intensively and the resulting genetic variants have been found to have either positive or negative association with T2DM thereby increasing or decreasing the risk of T2DM, respectively...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28322010/cholesterol-can-modulate-mitochondrial-aquaporin-8-expression-in-human-hepatic-cells
#2
Mauro Danielli, Alejo M Capiglioni, Julieta Marrone, Giuseppe Calamita, Raúl A Marinelli
Hepatocyte mitochondrial aquaporin-8 (mtAQP8) works as a multifunctional membrane channel protein that facilitates the uptake of ammonia for its detoxification to urea as well as the mitochondrial release of hydrogen peroxide. Since early oligonucleotide microarray studies in liver of cholesterol-fed mice showed an AQP8 downregulation, we tested whether alterations of cholesterol content per se modulate mtAQP8 expression in human hepatocyte-derived Huh-7 cells. Cholesterol loading with methyl-β-cyclodextrin (mβCD):cholesterol complexes downregulated the proteolytic activation of cholesterol-responsive sterol regulatory element-binding protein (SREBP) transcriptions factors 1 and 2, and the expression of the target gene 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR)...
March 20, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28289232/transcriptional-landscape-of-the-human-cell-cycle
#3
Yin Liu, Sujun Chen, Su Wang, Fraser Soares, Martin Fischer, Feilong Meng, Zhou Du, Charles Lin, Clifford Meyer, James A DeCaprio, Myles Brown, X Shirley Liu, Housheng Hansen He
Steady-state gene expression across the cell cycle has been studied extensively. However, transcriptional gene regulation and the dynamics of histone modification at different cell-cycle stages are largely unknown. By applying a combination of global nuclear run-on sequencing (GRO-seq), RNA sequencing (RNA-seq), and histone-modification Chip sequencing (ChIP-seq), we depicted a comprehensive transcriptional landscape at the G0/G1, G1/S, and M phases of breast cancer MCF-7 cells. Importantly, GRO-seq and RNA-seq analysis identified different cell-cycle-regulated genes, suggesting a lag between transcription and steady-state expression during the cell cycle...
March 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28288171/the-acceleration-of-cardiomyogenesis-in-embryonic-stem-cells-in-vitro-by-serum-depletion-does-not-increase-the-number-of-developed-cardiomyocytes
#4
Katarzyna Anna Radaszkiewicz, Dominika Sýkorová, Lucia Binó, Jana Kudová, Markéta Bébarová, Jiřina Procházková, Hana Kotasová, Lukáš Kubala, Jiří Pacherník
The differentiation of pluripotent embryonic stem (ES) cells into various lineages in vitro represents an important tool for studying the mechanisms underlying mammalian embryogenesis. It is a key technique in studies evaluating the molecular mechanisms of cardiomyogenesis and heart development and also in embryotoxicology. Herein, modest modifications of the basic protocol for ES cell differentiation into cardiomyocytes were evaluated in order to increase the yield and differentiation status of developed cardiomyocytes...
2017: PloS One
https://www.readbyqxmd.com/read/28284693/the-effects-of-cell-death-inducing-dna-fragmentation-factor-%C3%AE-like-effector-c-on-milk-lipid-synthesis-in-mammary-glands-of-dairy-cows
#5
Yang Yang, Ye Lin, Xiaoyu Duan, He Lv, Weinan Xing, Qingzhang Li, Xuejun Gao, Xiaoming Hou
Adequate lipid synthesis by the mammary gland during lactation is essential for the survival of mammalian offspring. Cell death-inducing DNA fragmentation factor-α-like effector C (CIDEC) is a lipid droplet-associated protein and functions to promote lipid accumulation and inhibit lipolysis in mice and human adipocytes. However, the function of CIDEC in regulation of milk lipid synthesis in dairy cow mammary gland remains largely unknown. In this study, 6 multiparous Holstein cows (parity = 3) in early lactation were allocated to high-fat milk (milk yield 33...
March 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28282121/mass-spectrometry-based-proteomics-study-of-cisplatin-induced-dna-protein-cross-linking-in-human-fibrosarcoma-ht1080-cells
#6
Xun Ming, Erin D Michaelson-Richie, Arnold Groehler, Peter W Villalta, Colin Campbell, Natalia Y Tretyakova
Platinum-based antitumor drugs such as 1,1,2,2-cis-diamminedichloroplatinum(II) (cisplatin), carboplatin, and oxaliplatin are currently used to treat nearly 50% of all cancer cases, and novel platinum based agents are under development. The antitumor effects of cisplatin and other platinum compounds are attributed to their ability to induce interstrand DNA-DNA cross-links, which are thought to inhibit tumor cell growth by blocking DNA replication and/or preventing transcription. However, platinum agents also induce significant numbers of unusually bulky and helix-distorting DNA-protein cross-links (DPCs), which are poorly characterized because of their unusual complexity...
March 10, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28278513/il-6-enhances-osteocyte-mediated-osteoclastogenesis-by-promoting-jak2-and-rankl-activity-in-vitro
#7
Qing Wu, Xiaokang Zhou, Danqing Huang, Yingchen Ji, Feiwu Kang
BACKGROUND/AIMS: Evidence suggests that IL-6 affects bone mass by modulating osteocyte communication towards osteoclasts. However, the mechanism by which IL-6 enhances osteocyte-mediated osteoclastogenesis is unclear. We aimed to investigate the inflammatory factors in serum after orthodontic surgery and their relationship between osteocytes and osteoclasts. METHODS: Serum was obtained from 10 orthognathic surgery patients, and inflammatory factors were detected by ELISA...
March 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28277135/tcf7l2-capn10-polymorphisms-are-associated-with-gestational-diabetes-mellitus-gdm-risks-a-meta-analysis
#8
Zhi Hou, Ming Li, Yanmin Cao
Several polymorphisms have been identified in transcription factor 7-like 2 (TCF7L2), and calpain-10 (CAPN10) genes. Controversial conclusions for the genetic relationship between these polymorphisms and gestational diabetes mellitus (GDM) risks were obtained. Our study aims at assessing whether these polymorphisms are associated with GDM susceptibility via a meta-analysis. A total of 19 eligible case-control articles were obtained after databases searching. A significantly increased GDM risk was observed for TCF7L2 rs7903146 (all OR > 1, p < 0...
February 21, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28273337/ethanol-tlr3-and-tlr4-agonists-have-unique-innate-immune-responses-in-neuron-like-sh-sy5y-and-microglia-like-bv2
#9
Colleen J Lawrimore, Fulton T Crews
Ethanol (EtOH) consumption leads to an increase of proinflammatory signaling via activation of toll-like receptors (TLRs) such as TLR3 and TLR4 that leads to kinase activation (ERK1/2, p38, TBK1), transcription factor activation (NFκB, IRF3) and increased transcription of pro-inflammatory cytokines such as TNFα, IL-1β, and IL-6. This immune signaling cascade is thought to play a role in neurodegeneration and alcohol use disorders. While microglia are considered to be the primary macrophage in brain, it is unclear what if any role neurons play in ethanol-induced proinflammatory signaling METHODS: Microglia-like BV2 and retinoic acid differentiated neuron-like SH-SY5Y were treated with TLR3 agonist Poly(I:C), TLR4 agonist LPS, or EtOH for 10 or 30 minutes to examine proinflammatory immune signaling kinase and transcription factor activation using western blot, and for 24 hours to examine induction of proinflammatory gene mRNA using RT-PCR RESULTS: In BV2, both LPS and Poly(I:C) increased p-ERK1/2, p-p38, and p-NFκB by 30 minutes, whereas EtOH decreased p-ERK1/2 and increased p-IRF3...
March 8, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28265724/yll056c-from-saccharomyces-cerevisiae-encodes-a-novel-protein-with-aldehyde-reductase-activity
#10
Han-Yu Wang, Di-Fan Xiao, Chang Zhou, Lin-Lu Wang, Lan Wu, Ya-Ting Lu, Quan-Ju Xiang, Ke Zhao, Xi Li, Meng -Gen Ma
The short-chain dehydrogenase/reductase (SDR) family, the largest family in dehydrogenase/reductase superfamily, is divided into "classical," "extended," "intermediate," "divergent," "complex," and "atypical" groups. Recently, several open reading frames (ORFs) were characterized as intermediate SDR aldehyde reductase genes in Saccharomyces cerevisiae. However, no functional protein in the atypical group has been characterized in S. cerevisiae till now. Herein, we report that an uncharacterized ORF YLL056C from S...
March 6, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28264445/equol-a-dietary-daidzein-gut-metabolite-attenuates-microglial-activation-and-potentiates-neuroprotection-in-vitro
#11
Lalita Subedi, Eunhee Ji, Dongyun Shin, Jongsik Jin, Joo Hong Yeo, Sun Yeou Kim
Estrogen deficiency has been well characterized in inflammatory disorders including neuroinflammation. Daidzein, a dietary alternative phytoestrogen found in soy (Glycine max) as primary isoflavones, possess anti-inflammatory activity, but the effect of its active metabolite Equol (7-hydroxy-3-(4'-hydroxyphenyl)-chroman) has not been well established. In this study, we investigated the anti-neuroinflammatory and neuroprotective effect of Equol in vitro. To evaluate the potential effects of Equol, three major types of central nervous system (CNS) cells, including microglia (BV-2), astrocytes (C6), and neurons (N2a), were used...
February 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28253590/-activation-of-endoplasmic-reticulum-stress-and-its-effect-on-osteogenic-differentiation-induced-by-micropit-nanotube-topography
#12
M Q Shi, W Song, T X Han, B Chang, Y M Zhang
Objective: To explore the activation of endoplasmic reticulum stress (ERS) in bone marrow mesenchymal stem cell (BMMSC) and its effect on osteogenic differentiation induced by micropit/nanotube topography (MNT), so as to provide guidance for the topography design of biomaterials. Methods: Four sample groups were fabricated: polishing control group (polished titanium, PT, no treatment), thapsigargin treatment (TG, 0.1 μmol/L TG treated for 9 h), MNT5 and MNT20 (anodized at 5 V and 20 V after acid etching). Scanning electron microscope (SEM) was used to observe the topography of Ti samples...
February 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/28250190/activation-of-nrf2-antioxidant-signaling-by-1-25-dihydroxycholecalciferol-prevents-leptin-induced-oxidative-stress-and-inflammation-in-human-endothelial-cells
#13
Thaisa M Teixeira, Danielly C da Costa, Angela C Resende, Christophe O Soulage, Flavia F Bezerra, Julio B Daleprane
Background: Obesity is associated with hyperleptinemia and endothelial dysfunction. Hyperleptinemia has been reported to induce both oxidative stress and inflammation by increasing reactive oxygen species production.Objective: The objective of this study was to determine the effects of 1,25-dihydroxycholecalciferol [1,25(OH)2D3] against leptin-induced oxidative stress and inflammation in human endothelial cells.Methods: Small interfering RNA (siRNA) were used to knock down the expression of vitamin D receptor (VDR) in human umbilical vein endothelial cells (HUVECs)...
March 1, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28239073/effects-of-topical-application-of-betamethasone-on-imiquimod-induced-psoriasis-like-skin-inflammation-in-mice
#14
Hiroki Mori, Kojo Arita, Takayuki Yamaguchi, Midori Hirai, Yoichi Kurebayashi
Psoriasis is a chronic inflammatory skin disease mediated by dysregulated auto-reactive immune system. In this study, in order to confirm and further extend the pharmacological basis of topical steroids in psoriasis therapy, we investigated the effect of betamethasone ointment on imiquimod (IMQ)-induced skin inflammation in mice. In BALB/c mice, topical IMQ at the dose of 250 µg each on both sides of the ear induced marked psoriasis-like skin inflammation within 5 days. The same dose of IMQ produced only slight to moderate skin inflammation even on Day 7 in CB-17 scid mice...
September 9, 2016: Kobe Journal of Medical Sciences
https://www.readbyqxmd.com/read/28238659/the-cdk8-complex-and-proneural-proteins-together-drive-neurogenesis-from-a-mesodermal-lineage
#15
Shuo Luo, H Robert Horvitz
At least some animal species can generate neurons from mesoderm or endoderm, but the underlying mechanisms remain unknown. We screened for C. elegans mutants in which the presumptive mesoderm-derived I4 neuron adopts a muscle-like cell fate. From this screen, we identified HLH-3, the C. elegans homolog of a mammalian proneural protein (Ascl1) used for in vitro neuronal reprogramming, as required for efficient I4 neurogenesis. We discovered that the CDK-8 Mediator kinase module acts together with a second proneural protein, HLH-2, and in parallel to HLH-3 to promote I4 neurogenesis...
March 6, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28217098/quercetin-inhibits-lps-induced-inflammation-and-ox-ldl-induced-lipid-deposition
#16
Feng Xue, Xiaobo Nie, Jianping Shi, Qingxue Liu, Ziwei Wang, Xiting Li, Jinqiu Zhou, Jia Su, Mingming Xue, Wei-Dong Chen, Yan-Dong Wang
Aberrant activation of inflammation and excess accumulation of lipids play crucial role in the occurrence and progression of atherosclerosis (AS). Quercetin (QCT) has been tested effectively to cure AS. It is widely distributed in plant foods and has been proved to have potential antioxidative and anticancer activities. However, the underlying molecular mechanisms of OCT in AS are not completely understood. In the present study, we stimulated murine RAW264.7 cells with lipopolysaccharide (LPS) or oxidized low-density lipoproteins (ox-LDL) to mimic the development of AS...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28216638/thymoquinone-an-irak1-inhibitor-with-in-vivo-and-in-vitro-anti-inflammatory-activities
#17
Muhammad Jahangir Hossen, Woo Seok Yang, Daewon Kim, Adithan Aravinthan, Jong-Hoon Kim, Jae Youl Cho
Thymoquinone (TQ) is a bioactive component of black seed (Nigella sativa) volatile oil and has been shown to have anti-oxidative, anti-inflammatory, and anti-cancer properties. In the present study, we explored the molecular mechanisms that underlie the anti-inflammatory effect of TQ and its target proteins using lipopolysaccharide (LPS)-stimulated murine macrophage-like RAW264.7 and human monocyte-like U937 cells, together with LPS/D-galactosamine (GalN)-induced acute hepatitis and HCl/EtOH-induced gastritis mouse models...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28208647/soy-leaf-extract-exerts-atheroprotective-effects-via-modulation-of-kr%C3%A3-ppel-like-factor-2-and-adhesion-molecules
#18
Jong-Min Han, Hua Li, Moon-Hee Cho, Seung-Hwa Baek, Chul-Ho Lee, Ho-Yong Park, Tae-Sook Jeong
Soy-leaf extracts exert their cardioprotective effects by inducing endothelium-dependent vasodilation in the arteries, and they favorably modulate the serum lipid profile. In this study, we investigated the atheroprotective effects of an ethanol extract of soy leaf (ESL) in human umbilical vein endothelial cells (HUVECs) and high-cholesterol diet (HCD)-fed low-density lipoprotein receptor deficient (LDLR-/-) mice. ESL induced the expression of Krüppel-like factor 2 (KLF2), an endothelial transcription factor, and endothelial nitric oxide synthase (eNOS), and suppressed the expression of vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1) through moderate inflammatory signal activation, not only in tumor necrosis factor-α (TNF-α)-stimulated HUVECs but also in 7-ketocholesterol (7-KC)-stimulated HUVECs...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28202997/-a-novel-tissue-engineered-bone-constructed-by-using-human-adipose-derived-stem-cells-and-biomimetic-calcium-phosphate-scaffold-coprecipitated-with-bone-morphogenetic-protein-2
#19
W R Jiang, X Zhang, Y S Liu, G Wu, Y J Ge, Y S Zhou
OBJECTIVE: To construct a novel biomimetic calcium phosphate (BioCaP) scaffold loaded with bone morphogenetic protein-2 (BMP-2), and to investigate its role in the osteogenesis of human adipose-derived stem cells (hASCs) in vitro and in vivo. METHODS: The BioCaP scaffold coprecipitated with BMP-2 (BMP-2-BioCaP) was constructed in this study. Field emission scanning electron microscopy (SEM) was used to analyze the morphology of the surfaces. The release kinetics was measured to evaluate the slow-release characteristics in vitro...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28202387/varenicline-enhances-oxidized-ldl-uptake-by-increasing-expression-of-lox-1-and-cd36-scavenger-receptors-through-%C3%AE-7-nachr-in-macrophages
#20
Yuki Kanaoka, Mitsuhisa Koga, Keita Sugiyama, Kaoru Ohishi, Yasufumi Kataoka, Atsushi Yamauchi
Varenicline is a widely used and effective drug for smoking cessation. It is a partial agonist of the α4β2 nicotinic acetylcholine receptor (nAChR) and full agonist of α7 nAChR. We have reported that varenicline aggravates formation of atherosclerotic plaques through α7 nAChR in apolipoprotein E knockout mice. However, little is known about its effects on macrophages in atherosclerotic plaques. Here, we ascertained whether varenicline promotes oxidized low-density lipoprotein (oxLDL) uptake in mouse peritoneal macrophages in vitro and clarified its mechanism...
February 12, 2017: Toxicology
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