Abstract:
AIMS/HYPOTHESIS:The mechanisms by which transcription factor 7-like 2 (TCF7L2) regulates the pathways that are important in the pathogenesis of type 2 diabetes are unknown. We therefore examined the role of TCF7L2 in hepatic glucose production (HGP) in vitro and characterised the whole-genome chromatin occupancy of TCF7L2 in hepatocytes. METHODS:We investigated the effect of TCF7L2 silencing and overexpression on HGP from gluconeogenic precursors and used chromatin-immunoprecipitation (ChIP) combined with massively parallel DNA sequencing (ChIP-Seq) to investigate the DNA binding patterns of TCF7L2 across the whole genome. RESULTS:Silencing of TCF7L2 induced a marked increase in basal HGP, which was accompanied by significant increases in the expression of the gluconeogenic genes Fbp1, Pck1 and G6pc. Overexpression of Tcf7l2 reversed this phenotype and significantly reduced HGP. TCF7L2 silencing did not affect the half-maximal inhibitory concentration of insulin or metformin, but HGP remained elevated in TCF7L2-silenced cells due to the increased baseline HGP. Using ChIP-Seq, we detected 2,119 binding events across the genome. Pathway analysis demonstrated that diabetes genes were significantly over-represented in the dataset. Our results indicate that TCF7L2 binds directly to multiple genes that are important in regulation of glucose metabolism in the liver, including Pck1, Fbp1, Irs1, Irs2, Akt2, Adipor1, Pdk4 and Cpt1a. CONCLUSIONS/INTERPRETATION:TCF7L2 is an important regulator of HGP in vitro and binds directly to genes that are important in pathways of glucose metabolism in the liver. These data highlight the possibility that TCF7L2 may affect fasting and postprandial hyperglycaemia in carriers of at-risk TCF7L2 genetic polymorphisms.
journal_name
Diabetologiajournal_title
Diabetologiaauthors
Norton L,Fourcaudot M,Abdul-Ghani MA,Winnier D,Mehta FF,Jenkinson CP,Defronzo RAdoi
10.1007/s00125-011-2289-zsubject
Has Abstractpub_date
2011-12-01 00:00:00pages
3132-42issue
12eissn
0012-186Xissn
1432-0428journal_volume
54pub_type
杂志文章相关文献
DIABETOLOGIA文献大全abstract::The effect of the alpha-glucosidase inhibitor acarbose on postprandial hyperglycaemia was explored in the spontaneously diabetic BB/W-rat. Acarbose-treatment (5 mg.kg body weight-1.day-1) of diabetic BB/W-rats maintained on small doses of insulin, was associated with a 40% reduction in the 24-h glucose area compared t...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF00401199
更新日期:1992-04-01 00:00:00
abstract::Cyclic adenosine 5'diphosphate-ribose (cADPR) is thought to have a second messenger role in insulin secretion through mobilisation of Ca2+. As human lymphocyte antigen CD38 has both ADP-ribosyl cyclase and cADPR hydrolase activity, it may be important in glucose-induced insulin secretion in islets. Thirty one randomly...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s001250051026
更新日期:1998-09-01 00:00:00
abstract:AIMS/HYPOTHESIS:Glucagon-like peptide-1 (GLP-1), a polypeptide hormone secreted by the l-cells in the gastrointestinal tract, has shown promising effects as a new treatment modality for patients with Type II (non-insulin-dependent) diabetes mellitus. However, the pharmacokinetic profile of native GLP-1 with a rapid eli...
journal_title:Diabetologia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00125-001-0719-z
更新日期:2002-02-01 00:00:00
abstract::Mitochondrial DNA is maternally inherited. Mitochondrial DNA mutations could contribute to the excess of maternal over paternal inheritance of non-insulin-dependent diabetes mellitus (NIDDM). We therefore investigated the relationship between this variant, insulin resistance and other risk factors in a cohort which ha...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s001250050866
更新日期:1998-01-01 00:00:00
abstract:AIMS/HYPOTHESIS:The cardiometabolic risk associated with metabolically healthy obesity (MHO) remains the subject of debate. It is unclear whether MHO is a transient condition that affects subclinical atherosclerosis risk. In this study, we aimed to investigate the association of MHO and its transition over time with in...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-020-05116-5
更新日期:2020-07-01 00:00:00
abstract::The antiprotozoal drug, pentamidine, has been reported to induce hypoglycaemia associated with inappropriately high plasma insulin concentrations, followed by insulin-dependent diabetes mellitus. It has been suggested that this drug can be toxic to the islet B cell, inducing early cytolytic release of insulin leading ...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF00282521
更新日期:1983-11-01 00:00:00
abstract::Epigenetics encapsulates a group of molecular mechanisms including DNA methylation, histone modification and microRNAs (miRNAs). Gestational diabetes (GDM) increases the risk of adverse perinatal outcomes and is associated with future offspring risk of obesity and type 2 diabetes. It has been hypothesised that epigene...
journal_title:Diabetologia
pub_type: 杂志文章,评审
doi:10.1007/s00125-019-05011-8
更新日期:2019-12-01 00:00:00
abstract::It is suggested that amylin (islet associated polypeptide), co-secreted with insulin from the pancreatic beta cells acts as a circulating hormone which opposes the action of insulin on muscle and increases hepatic glucose production. We have tested the effect of amylin in human subjects on postabsorptive glucose homeo...
journal_title:Diabetologia
pub_type: 临床试验,杂志文章
doi:10.1007/s001250050088
更新日期:1994-02-01 00:00:00
abstract::Isolated pancreatic islets of normoglycemic sand rats do not respond to 2.5 mM glucose with an enhanced glucagon secretion, which could be observed in normal Wistar rats. Arginine stimulates glucagon release in the presence of 2.5 mM glucose in Wistar rats as well as in sand rats. The secretion pattern is not caused b...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF00422820
更新日期:1975-02-01 00:00:00
abstract::N-acetylcysteine (NAC) is a precursor of glutathione (GSH) synthesis, a free radical scavenger and an inhibitor of tumour necrosis factor alpha (TNF). Because these functions might be beneficial in diabetic complications, in this study we examined whether NAC inhibits peripheral neuropathy. Motor nerve conduction velo...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF00418340
更新日期:1996-03-01 00:00:00
abstract:AIMS/HYPOTHESIS:As vascular endothelial growth factor (VEGF) plays a pivotal role in the development of diabetic retinopathy, inhibition of angiogenesis induced by VEGF is crucial to treat diabetic retinopathy. HGF (hepatocyte growth factor)/NK4, containing the N-terminal hairpin domain and the four subsequent kringle ...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-002-0954-y
更新日期:2003-01-01 00:00:00
abstract::G protein-coupled receptors (GPCRs) in the gut-brain-pancreatic axis are key players in the postprandial control of metabolism and food intake. A number of intestinally located receptors have been implicated in the chemo-detection of ingested nutrients, and in the pancreatic islets and nervous system GPCRs play essent...
journal_title:Diabetologia
pub_type: 杂志文章,评审
doi:10.1007/s00125-015-3825-z
更新日期:2016-02-01 00:00:00
abstract:AIMS/HYPOTHESIS:Accurate prevalence estimates for gestational diabetes mellitus (GDM) among pregnant women in Europe are lacking owing to the use of a multitude of diagnostic criteria and screening strategies in both high-risk women and the general pregnant population. Our aims were to report important risk factors for...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-017-4353-9
更新日期:2017-10-01 00:00:00
abstract::We performed i.v. insulin tolerance test in 30 non-obese (BMI < 30 male and < 28 female) non-diabetic (by oral glucose tolerance test) subjects and subdivided them into three groups of 10 subjects each, according to their insulin sensitivity (K(itt) values). Then we compared the tyrosine-kinase activity of immunopurif...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF02369353
更新日期:1995-01-01 00:00:00
abstract::The intraperitoneal route may offer more physiological insulin delivery through absorption of a proportion of the dose into the portal circulation. We have compared 1-h square-wave and bolus supplemental infusions of a fixed dose of 10 U of intraperitoneal insulin in 6 C-peptide negative insulin-dependent diabetic pat...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF00265019
更新日期:1985-10-01 00:00:00
abstract:AIMS/HYPOTHESIS:Although insulin resistance has been associated with accumulations of specific intramuscular fatty acids and altered subcellular localisation of lipid droplets, these concepts remain controversial. Therefore, we aimed to identify specific intramuscular fatty acids and subcellular lipid localisations ass...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-014-3169-0
更新日期:2014-04-01 00:00:00
abstract:AIMS/HYPOTHESIS:Obesity is a major risk factor for type 2 diabetes, but little is known about the contribution of BMI-associated loci to type 2 diabetes risk in East Asian populations. METHODS:In this study, 30 known BMI-associated variants and a genetic risk score (GRS) calculated by summing the BMI-increasing allele...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-014-3308-7
更新日期:2014-09-01 00:00:00
abstract:AIMS/HYPOTHESIS:This 52-week multinational, randomised, open-label, parallel-group, non-inferiority trial compared clinical outcomes following supplementation of oral glucose-lowering drugs with basal insulin analogues detemir and glargine in type 2 diabetic patients. METHODS:Insulin-naive adults (n=582, HbA(1c) 7.5-1...
journal_title:Diabetologia
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00125-007-0911-x
更新日期:2008-03-01 00:00:00
abstract::Subjects selected from a centre specializing in diabetes detection have been classified using nine different methods of diagnosis including the recent criteria of the National Diabetes Data Group and the World Health Organization. The applicability of these two new criteria have been evaluated and compared with seven ...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF00297390
更新日期:1983-02-01 00:00:00
abstract::The validity of the new diagnostic criteria for diabetes mellitus for Japanese subjects was assessed by the long-term prognosis of 501 patients, found in an epidemiological survey of 6,681 people in a Japanese town. Ten-year relative survival rates were examined in relation to the 50 g oral glucose tolerance test (ser...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF00252627
更新日期:1981-03-01 00:00:00
abstract::It has been shown that, in streptozotocin diabetic rats, protamine-retarded insulin administered in vivo stimulates intimal hyperplasia in balloon-injured carotid artery. The aim of this study was to evaluate the influence of protamine on cultured human vascular smooth muscle cells (h VSMC), by observing its effects o...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s001250050644
更新日期:1997-01-01 00:00:00
abstract::Microencapsulation has been proposed to protect islets of Langerhans against immune rejection in xenogenic transplantation. However, to achieve glucose homeostasis in human diabetic patients, insulin release by microencapsulated islets must increase in response to a glucose load. We microencapsulated isolated rat isle...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/BF00279134
更新日期:1988-01-01 00:00:00
abstract:AIMS/HYPOTHESIS:Insulin-like growth factor-1 is a major childhood growth factor and promotes pancreatic islet cell survival and growth in vitro. We hypothesised that genetic variation in IGF1 might be associated with childhood growth, glucose metabolism and type 1 diabetes risk. We therefore examined the association be...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-008-0970-7
更新日期:2008-05-01 00:00:00
abstract:AIMS/HYPOTHESIS:The enzyme hormone-sensitive lipase (HSL) is produced and is active in pancreatic beta cells. Because lipids are known to play a crucial role in normal control of insulin release and in the deterioration of beta cell function, as observed in type 2 diabetes, actions of HSL in beta cells may be critical....
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-008-1191-9
更新日期:2009-02-01 00:00:00
abstract:AIMS/HYPOTHESIS:We determined the effects of 6 years of lifestyle intervention in persons with impaired glucose tolerance (IGT) on the development of retinopathy, nephropathy and neuropathy over a 20 year period. METHODS:In 1986, 577 adults with IGT from 33 clinics in Da Qing, China were randomly assigned by clinic to...
journal_title:Diabetologia
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00125-010-1948-9
更新日期:2011-02-01 00:00:00
abstract:AIMS/HYPOTHESIS:Endothelial-endocrine cell interactions and vascular endothelial growth factor (VEGF)-A signalling are deemed essential for maternal islet vascularisation, glucose control and beta cell expansion during mouse pregnancy. The aim of this study was to assess whether pregnancy-associated beta cell expansion...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-017-4243-1
更新日期:2017-06-01 00:00:00
abstract:AIMS/HYPOTHESIS:Single nucleotide polymorphisms (SNPs) in G6PC2 have been reported to be associated with fasting plasma glucose level in several populations of European descent. However, whether G6PC2 variants have a similar effect in other ethnic groups is unknown. The aim of this study was to investigate the effect o...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-008-1241-3
更新日期:2009-03-01 00:00:00
abstract:AIMS/HYPOTHESIS:Glucose and the peptide growth factors insulin, IGF-I and IGF-II strongly regulate beta cell mass. Furthermore, beta cell expression of IGF-I receptor (Igf1r) and insulin receptor (Insr) is mandatory for several steps of insulin secretion. MATERIALS AND METHODS:We hypothesised that glucose concentratio...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s00125-005-1860-x
更新日期:2005-09-01 00:00:00
abstract:AIMS/HYPOTHESIS:Individuals with diabetes have increased mortality rates compared with the general population. In patients with type 2 diabetes depression further contributes to the increased mortality. Depression and mortality rates in patients with type 1 diabetes are an understudied phenomenon. We therefore studied ...
journal_title:Diabetologia
pub_type: 杂志文章,多中心研究
doi:10.1007/s00125-011-2347-6
更新日期:2012-01-01 00:00:00
abstract::[Nepsilon-palmitoyl Lys (B29)] human insulin is a fatty acid-acylated derivative of insulin with extended action compared to unmodified insulin when infused intravenously (i.v.) secondary to its binding to circulating albumin. The duration and activity profile of the acylated (A) and NPH (B) insulins were assessed fol...
journal_title:Diabetologia
pub_type: 杂志文章
doi:10.1007/s001250050876
更新日期:1998-01-01 00:00:00