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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/28303247/effect-of-wnt-signaling-on-the-differentiation-of-islet-%C3%AE-cells-from-adipose-derived-stem-cells
#2
Hefei Wang, Yu Ren, Xiao Hu, Min Ma, Xiao Wang, Hao Liang, Dongjun Liu
The Wnt signaling is critical for pancreatic development and islet function; however, its precise effects on the development and function of the β-cells remain controversial. Here we examined mRNA and protein expression of components of the Wnt signaling throughout the differentiation of islet β-cells from adipose-derived stem cells (ADSCs). After induction, ADSCs expressed markers of β-cells, including the insulin, PDX1, and glucagon genes, and the PDX1, CK19, nestin, insulin, and C-peptide proteins, indicating their successful differentiation...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28299838/pilot-cohort-study-on-the-potential-role-of-tcf7l2-rs7903146-on-ischemic-heart-disease-among-non-diabetic-kidney-transplant-recipients
#3
Marco Quaglia, Claudio Musetti, Guido Merlotti, Armando A Genazzani, Sarah Cargnin, Tiziana Cena, Vincenzo Cantaluppi, Salvatore Terrazzino
BACKGROUND: TCF7L2 rs7903146 C>T polymorphism is associated with diabetes in the general population but its independent impact on cardiovascular disease is debated. On this basis we investigated its association with major adverse cardiac events (MACE) in a single-center cohort of non-diabetic kidney transplant recipients (KTRs). METHODS: Patients with pre-transplant diabetes were excluded and patients who developed post-transplant diabetes were censored at time of diagnosis...
March 16, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28277135/tcf7l2-capn10-polymorphisms-are-associated-with-gestational-diabetes-mellitus-gdm-risks-a-meta-analysis
#4
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/28254843/genetics-of-type-2-diabetes-in-u-s-hispanic-latino-individuals-results-from-the-hispanic-community-health-study-study-of-latinos-hchs-sol
#5
Qibin Qi, Adrienne M Stilp, Tamar Sofer, Jee-Young Moon, Bertha Hidalgo, Adam A Szpiro, Tao Wang, Maggie C Y Ng, Xiuqing Guo, Yii-Der Ida Chen, Kent D Taylor, M Larissa Aviles-Santa, George Papanicolaou, James S Pankow, Neil Schneiderman, Cathy C Laurie, Jerome I Rotter, Robert C Kaplan
Few genome-wide association studies (GWAS) of type 2 diabetes (T2D) have been conducted in US Hispanics/Latinos of diverse backgrounds who are disproportionately affected by diabetes. We conducted a GWAS in 2499 T2D cases and 5247 controls from 6 Hispanic/Latino background groups in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL). Our GWAS identified two known loci (TCF7L2 and KCNQ1) reaching genome-wide significance level. Conditional analysis on known index SNPs indicated an additional independent signal at KCNQ1, represented by an African ancestry-specific variant, rs1049549 (OR=1...
March 2, 2017: Diabetes
https://www.readbyqxmd.com/read/28253288/a-novel-tcf7l2-type-2-diabetes-snp-identified-from-fine-mapping-in-african-american-women
#6
Stephen A Haddad, Julie R Palmer, Kathryn L Lunetta, Maggie C Y Ng, Edward A Ruiz-Narváez
SNP rs7903146 in the Wnt pathway's TCF7L2 gene is the variant most significantly associated with type 2 diabetes to date, with associations observed across diverse populations. We sought to determine whether variants in other Wnt pathway genes are also associated with this disease. We evaluated 69 genes involved in the Wnt pathway, including TCF7L2, for associations with type 2 diabetes in 2632 African American cases and 2596 controls from the Black Women's Health Study. Tag SNPs for each gene region were genotyped on a custom Affymetrix Axiom Array, and imputation was performed to 1000 Genomes Phase 3 data...
2017: PloS One
https://www.readbyqxmd.com/read/28220878/homozygous-carriers-of-the-tcf7l2-rs7903146-t-allele-show-altered-postprandial-response-in-triglycerides-and-triglyceride-rich-lipoproteins
#7
L Engelbrechtsen, T H Hansen, Y Mahendran, P Pyl, E Andersson, A Jonsson, A Gjesing, A Linneberg, T Jørgensen, T Hansen, H Vestergaard
The TCF7L2 rs7903146 T-allele shows the strongest association with type 2 diabetes (T2D) among common gene variants. The aim of this study was to assess circulating levels of metabolites following a meal test in individuals carrying the high risk rs790346 TT genotype (cases) and low-risk CC genotype (controls). Sixty-two men were recruited based on TCF7L2 genotype, 31 were TT carriers and 31 were age- and BMI-matched CC carriers. All participants consumed a test meal after 12 hours of fasting. Metabolites were measured using proton nuclear magnetic resonance (NMR) spectroscopy...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28219951/generation-of-thalamic-neurons-from-mouse-embryonic-stem-cells
#8
Atsushi Shiraishi, Keiko Muguruma, Yoshiki Sasai
Thalamus is a diencephalic structure that plays crucial roles in relaying and modulating sensory and motor information to the neocortex. The thalamus develops in the dorsal part of the neural tube at the level of the caudal forebrain. However, the molecular mechanisms that are essential for thalamic differentiation are still unknown. Here we have succeeded in the generation of thalamic neurons from mouse ES cells (mESCs) by modifying the default method that induces the most-anterior neural type in self-organizing culture...
February 20, 2017: Development
https://www.readbyqxmd.com/read/28219675/tcf7l2-plays-crucial-roles-in-forebrain-development-through-regulation-of-thalamic-and-habenular-neuron-identity-and-connectivity
#9
Myungsin Lee, Jiyeon Yoon, Hobeom Song, Bumwhee Lee, Duc Tri Lam, Jaeseung Yoon, Kwanghee Baek, Hans Clevers, Yongsu Jeong
The thalamus acts as a central integrator for processing and relaying sensory and motor information to and from the cerebral cortex, and the habenula plays pivotal roles in emotive decision making by modulating dopaminergic and serotonergic circuits. These neural compartments are derived from a common developmental progenitor domain, called prosomere 2, in the caudal forebrain. Thalamic and habenular neurons exhibit distinct molecular profile, neurochemical identity, and axonal circuitry. However, the mechanisms of how their progenitors in prosomere 2 give rise to these two populations of neurons and contribute to the forebrain circuitry remains unclear...
April 1, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28198454/preliminary-evidence-for-a-role-of-the-adrenergic-nervous-system-in-generalized-anxiety-disorder
#10
Xiaobin Zhang, Joanna Norton, Isabelle Carrière, Karen Ritchie, Isabelle Chaudieu, Joanne Ryan, Marie-Laure Ancelin
Generalized anxiety disorder (GAD) is a common chronic condition that is understudied compared to other psychiatric disorders. An altered adrenergic function has been reported in GAD, however direct evidence for genetic susceptibility is missing. This study evaluated the associations of gene variants in adrenergic receptors (ADRs) with GAD, with the involvement of stressful events. Data were obtained from 844 French community-dwelling elderly aged 65 or over. Anxiety disorders were assessed using the Mini-International Neuropsychiatry Interview, according to DSM-IV criteria...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28183453/glucose-tolerance-and-free-fatty-acid-metabolism-in-adults-with-variations-in-tcf7l2-rs7903146
#11
Jin Lu, Ron T Varghese, Lianzhen Zhou, Adrian Vella, Michael D Jensen
OBJECTIVE: TCF7L2 variant rs7903146 is associated with increased risk for type 2 diabetes. We investigated the effect of TCF7L2 variant rs7903146 and glucose tolerance on free fatty acid (FFA) metabolism. RESEARCH DESIGN AND METHODS: We recruited 120 individuals, half homozygous for the major CC allele and half homozygous for the minor TT allele at rs7903146; each underwent a 2-h, 75g oral glucose tolerance test (OGTT). Plasma glucose, insulin and free fatty acid concentrations were measured on blood collected before and during the OGTT...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28165569/effect-of-mir-212-targeting-tcf7l2-on-the-proliferation-and-metastasis-of-cervical-cancer
#12
C Zhou, D-M Tan, L Chen, X-Y Xu, C-C Sun, L-J Zong, S Han, Y-Z Zhang
OBJECTIVE: MicroRNAs (miRs) function as either oncogenes or tumor suppressors in the progression of various human cancers, including cervical cancer. This study aimed to explore the role of miR-212 in cervical cancer and the mechanisms underlying this role. PATIENTS AND METHODS: Quantitative real-time polymerase chain reaction (RT-PCR) and Western blot assays were used to determine the expression levels of miR-212 and TCF7L2 in the cervical cancer cells. Cell proliferation invasion was examined using BrdU assays and transwell, respectively...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28143522/aspirin-intervention-for-the-reduction-of-colorectal-cancer-risk-aspired-a-study-protocol-for-a-randomized-controlled-trial
#13
David A Drew, Samantha M Chin, Katherine K Gilpin, Melanie Parziale, Emily Pond, Madeline M Schuck, Kathleen Stewart, Meaghan Flagg, Crystal A Rawlings, Vadim Backman, Peter J Carolan, Daniel C Chung, Francis P Colizzo, Matthew Freedman, Manish Gala, John J Garber, Curtis Huttenhower, Dmitriy Kedrin, Hamed Khalili, Douglas S Kwon, Sanford D Markowitz, Ginger L Milne, Norman S Nishioka, James M Richter, Hemant K Roy, Kyle Staller, Molin Wang, Andrew T Chan
BACKGROUND: Although aspirin is recommended for the prevention of colorectal cancer, the specific individuals for whom the benefits outweigh the risks are not clearly defined. Moreover, the precise mechanisms by which aspirin reduces the risk of cancer are unclear. We recently launched the ASPirin Intervention for the REDuction of colorectal cancer risk (ASPIRED) trial to address these uncertainties. METHODS/DESIGN: ASPIRED is a prospective, double-blind, multidose, placebo-controlled, biomarker clinical trial of aspirin use in individuals previously diagnosed with colorectal adenoma...
February 1, 2017: Trials
https://www.readbyqxmd.com/read/28139539/association-of-type-2-diabetes-mellitus-genes-in-polycystic-ovary-syndrome-aetiology-among-women-from-southern-india
#14
Battini Mohan Reddy, Uma Jyothi Kommoju, Shilpi Dasgupta, Pranavchand Rayabarapu
BACKGROUND & OBJECTIVES: Polycystic ovary syndrome (PCOS) is the most common reproductive endocrine disorder of premenopausal women. Given the phenotypic overlap between PCOS and type 2 diabetes mellitus (T2DM), this study was carried out to investigate whether genes implicated in T2DM were also involved in the susceptibility to PCOS among women from southern India. METHODS: A total of 248 women with PCOS and 210 healthy women as controls were genotyped for a panel of 15 single nucleotide polymorphisms (SNPs) from the nine T2DM genes, such as TCF7L2, IGF2BP2, SLC30A8, HHEX, CDKAL1, CDKN2A, IRS1, CAPN10 and PPARG, on Sequenom MassARRAY platform...
September 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28133617/molecular-analysis-of-a-genetic-variants-panel-related-to-nutrients-and-metabolism-association-with-susceptibility-to-gestational-diabetes-and-cardiometabolic-risk-in-affected-women
#15
Marica Franzago, Federica Fraticelli, Antonio Nicolucci, Claudio Celentano, Marco Liberati, Liborio Stuppia, Ester Vitacolonna
Gestational diabetes mellitus (GDM) is the most frequent metabolic disorder in pregnancy. Women with a GDM history are at increased risk of developing diabetes and cardiovascular diseases. Studies have demonstrated a significant correlation between several genes involved in the metabolic pathway of insulin and environmental factors. The aim of this study was to investigate the relationship between clinical parameters in GDM and variants in genes involved with nutrients and metabolism. Several variants PPARG2 rs1801282 (C>G); PPARGC1A rs8192678 (C>T); TCF7L2 rs7903146 (C>T); LDLR rs2228671 (C>T); MTHFR rs1801133 (C>T); APOA5 rs662799 (T>C); GCKR rs1260326 (C>T); FTO rs9939609 (T>A); MC4R rs17782313 (T>C) were genotyped in 168 pregnant Caucasian women with or without GDM by High Resolution Melting (HRM) analysis...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28122918/nuclear-factor-i-c-reciprocally-regulates-adipocyte-and-osteoblast-differentiation-via-control-of-canonical-wnt-signaling
#16
Jie Zhou, Shan Wang, Qi Qi, Xiaoyue Yang, Endong Zhu, Hairui Yuan, Xuemei Li, Ying Liu, Xiaoxia Li, Baoli Wang
Nuclear factor I-C (NFIC) has recently been identified as an important player in osteogenesis and bone homeostasis in vivo However, the molecular mechanisms involved have yet to be defined. In the current study, Nfic expression was altered in primary marrow stromal cells and established progenitor lines after adipogenic and osteogenic treatment. Overexpression of Nfic in stromal cells ST2, mesenchymal cells C3H10T1/2, and primary marrow stromal cells inhibited adipogenic differentiation, whereas it promoted osteogenic differentiation...
January 25, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28117839/the-genetic-overlap-between-mood-disorders-and-cardiometabolic-diseases-a-systematic-review-of-genome-wide-and-candidate-gene-studies
#17
REVIEW
A T Amare, K O Schubert, M Klingler-Hoffmann, S Cohen-Woods, B T Baune
Meta-analyses of genome-wide association studies (meta-GWASs) and candidate gene studies have identified genetic variants associated with cardiovascular diseases, metabolic diseases and mood disorders. Although previous efforts were successful for individual disease conditions (single disease), limited information exists on shared genetic risk between these disorders. This article presents a detailed review and analysis of cardiometabolic diseases risk (CMD-R) genes that are also associated with mood disorders...
January 24, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28117551/identification-of-ferm-domain-containing-protein-5-frmd5-as-a-novel-target-of-%C3%AE-catenin-tcf7l2-complex
#18
Chi Zhu, Kiyoshi Yamaguchi, Tomoyuki Ohsugi, Yumi Terakado, Rei Noguchi, Tsuneo Ikenoue, Yoichi Furukawa
Deregulation of the canonical Wnt signaling pathway plays an important role in human tumorigenesis through the accumulation of β-catenin and subsequent transactivation of TCF7L2. Although some of the consequences associated with the accumulated β-catenin have been clarified, the comprehensive effect of activated β-catenin/TCF7L2 transcriptional complex on tumorigenesis remains to be elucidated. To understand the precise molecular mechanisms underlying colorectal cancer, we searched for genes regulated by the complex in colorectal tumors...
January 24, 2017: Cancer Science
https://www.readbyqxmd.com/read/28102847/curcumin-represses-mouse-3t3-l1-cell-adipogenic-differentiation-via-inhibiting-mir-17-5p-and-stimulating-the-wnt-signalling-pathway-effector-tcf7l2
#19
Lili Tian, Zhuolun Song, Weijuan Shao, William W Du, Lisa R Zhao, Kejing Zeng, Burton B Yang, Tianru Jin
Understanding mechanisms underlying adipogenic differentiation may lead to the discovery of novel therapeutic targets for obesity. Wnt signalling pathway activation leads to repressed adipogenic differentiation while certain microRNAs may regulate pre-adipocyte proliferation and differentiation. We show here that in mouse white adipose tissue, miR-17-5p level is elevated after high fat diet consumption. miR-17-5p upregulates adipogenic differentiation, as its over-expression increased while its inhibition repressed 3T3-L1 differentiation...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28101933/associations-of-common-variants-in-the-slc16a11-tcf7l2-and-abca1-genes-with-pediatric-onset-type-2-diabetes-and-related-glycemic-traits-in-families-a-case-control-and-case-parent-trio-study
#20
América L Miranda-Lora, Miguel Cruz, Mario Molina-Díaz, Jorge Gutiérrez, Samuel Flores-Huerta, Miguel Klünder-Klünder
BACKGROUND: There is evidence of associations of single-nucleotide polymorphisms (SNPs) with type 2 diabetes (T2D) and related glycemic traits in adults, but there is a little information about such associations in youths. OBJECTIVE: The aim of this study was to evaluate the associations of SNPs in the TCF7L2, SLC16A11, and ABCA1 genes with T2D and related glycemic traits in Mexican children and adolescents. SUBJECTS: A total of 99 families with children with T2D (n = 327) and 83 families with children without the disease (n = 212)...
January 19, 2017: Pediatric Diabetes
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