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Transcriptome analysis of liver from subjects with normal glucose tolerance and steatosis<1 compared to subjects with impaired glucose metabolism and steatosis >3

ABSTRACT: Transcriptome analysis of liver from subjects with normal glucose tolerance and steatosis<1 compared to subjects with impaired glucose metabolism and steatosis >3

PROVIDER: PRJNA736972 | ENA |

REPOSITORIES: ENA

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Transcriptome analysis of liver from subjects with normal glucose tolerance and steatosis<1 compared to subjects with impaired glucose metabolism and steatosis >3

Project description:Liver transcriptome profile in subjects with impaired glucose metabolism and steatosis >3 revealed differences compared with subjects with steatosis <1 and normal glucose tolerance. Several well-characterized markers of non-alcoholic fatty liver disease (NAFLD) were identified as differentially expressed between the two groups.

2022-03-09 | GSE177050 | GEO

A low meal frequency improves 24h metabolic and gene expression profiles in subjects with impaired glucose tolerance (muscle)

Project description:Meal frequency regulates postprandial glucose and insulin responses, which may affect substrate partitioning and thus weight control. This study investigated the effects of meal frequency on the metabolic and transcriptomic profiles in subjects with impaired glucose tolerance (IGT). Eleven IGT (2h glucose; 9.0±0.3mmol/L) men stayed 2x 36 hours in a respiration chamber to measure substrate partitioning. All subjects randomly received two isoenergetic diets with a low meal frequency (3x-LFr) or a high meal frequency (14x-HFr) consisting of 15 En% prot, 30 En% fat, and 55 En% carb. Total glucose output (AUC), carbohydrate oxidation and whole body RQ significantly decreased, and FFA levels increased in the LFr diet. The HFr diet resulted in an up-regulation in expression of genes involved in immune function and inflammation after 24h in PBMCs and muscle tissue. Expression of genes involved in PPAR signalling, OXPHOS, and glutathione metabolism were up-regulated in the HFr diet in muscle tissue only. In conclusion, the LFr diet improved the metabolic and transcriptomic profiles, and appetite control compared to the HFr diet. This suggests that a LFr diet might be an effective dietary strategy with anti-inflammatory characteristics to increase metabolic flexibility and body weight control in IGT subjects.

2020-11-01 | GSE52027 | GEO

A low meal frequency improves 24h metabolic and gene expression profiles in subjects with impaired glucose tolerance (PBMC)

2020-11-01 | GSE52026 | GEO

Ayurvedic herbal preparation supplementation does not improve metabolic health in impaired glucose tolerance subjects; observations from a randomised placebo controlled trial

Project description:The increased usage of alternative Ayurvedic treatments as potential health-beneficial therapies emphasizes the importance of studying its efficacy in sound placebo-controlled intervention trials. An example of such a traditional Ayurvedic herbal preparation is Mohana Choorna, a mixture composed of 20 different herbs and used to prevent and treat type 2-diabetes (T2D). We studied the efficacy of “Mohana Choorna” on T2D-related parameters in subjects with impaired glucose tol-erance. In a double blind, placebo-controlled cross-over trial, 19 overweight (BMI > 27 kg/m2) subjects aged 50–70 years with an impaired glucose tolerance received two four-week interven-tions, i.e., herbal or placebo with a four-week wash-out between interventions. HbA1c, glucose, insulin, triglycerides, cholesterol, blood pressure and augmentation index were measured before and after both interventions at fasting and during a glucose tolerance test. After both interventions, urine was collected to measure treatment exposure using LCMS-based metabolomics and whole genome gene-expression in adipose tissue of 13 subjects. The herbal intervention did not affect plasma glucose triglycerides, cholesterol, blood pressure or the augmentation index but showed a trend towards an increased insulin, HOMA-IR and postprandial insulin levels (p = 0.054, p = 0.056 and p = 0.095 respectively). An increase in expression of inflammation-related gene sets in adipose tissue was observed after the herbal intervention compared to placebo. Urine metabolomic analysis did not reveal a correlation of the presence of specific plant metabolites with “health markers”. Our findings suggest that there is no substantiating evidence to claim that four weeks’ use of the Ayurvedic herbal supplement Mohana Choorna beneficially affects glucose homeo-stasis.

2021-01-16 | GSE164934 | GEO

A low meal frequency improves 24h metabolic and gene expression profiles in subjects with impaired glucose tolerance

Project description:A low meal frequency improves 24h metabolic and gene expression profiles in subjects with impaired glucose tolerance

| PRJNA226232 | ENA

Altered Skeletal Muscle Fatty Acid Handling in Subjects with Impaired Glucose Tolerance as Compared to Impaired Fasting Glucose.

Project description:Altered skeletal muscle fatty acid (FA) metabolism contributes to insulin resistance. Here, we compared skeletal muscle FA handling between subjects with impaired fasting glucose (IFG; n = 12 (7 males)) and impaired glucose tolerance (IGT; n = 14 (7 males)) by measuring arterio-venous concentration differences across forearm muscle. [²H?]-palmitate was infused intravenously, labeling circulating endogenous triacylglycerol (TAG) and free fatty acids (FFA), whereas [U-(13)C]-palmitate was incorporated in a high-fat mixed-meal, labeling chylomicron-TAG. Skeletal muscle biopsies were taken to determine muscle TAG, diacylglycerol (DAG), FFA, and phospholipid content, their fractional synthetic rate (FSR) and degree of saturation, and gene expression. Insulin sensitivity was assessed using a hyperinsulinemic-euglycemic clamp. Net skeletal muscle glucose uptake was lower (p = 0.018) and peripheral insulin sensitivity tended to be reduced (p = 0.064) in IGT as compared to IFG subjects. Furthermore, IGT showed higher skeletal muscle extraction of VLDL-TAG (p = 0.043), higher muscle TAG content (p = 0.025), higher saturation of FFA (p = 0.004), lower saturation of TAG (p = 0.017) and a tendency towards a lower TAG FSR (p = 0.073) and a lower saturation of DAG (p = 0.059) versus IFG individuals. Muscle oxidative gene expression was lower in IGT subjects. In conclusion, increased liver-derived TAG extraction and reduced lipid turnover of saturated FA, rather than DAG content, in skeletal muscle accompany the more pronounced insulin resistance in IGT versus IFG subjects.

| S-EPMC4808892 | biostudies-literature

Transcriptional profiles of human islet and exocrine endothelial cells in subjects with or without impaired glucose metabolism

Project description:Transcriptional profiles of human islet and exocrine endothelial cells in subjects with or without impaired glucose metabolism

| PRJNA661675 | ENA

Ayurvedic herbal preparation supplementation does not improve metabolic health in impaired glucose tolerance subjects observations from a randomised placebo controlled trial

Project description:Ayurvedic herbal preparation supplementation does not improve metabolic health in impaired glucose tolerance subjects observations from a randomised placebo controlled trial

| PRJNA692470 | ENA

Adipokine pattern in subjects with impaired fasting glucose and impaired glucose tolerance in comparison to normal glucose tolerance and diabetes.

Project description:AimAltered adipokine serum concentrations early reflect impaired adipose tissue function in obese patients with type 2 diabetes (T2D). It is not entirely clear whether these adipokine alterations are already present in prediabetic states and so far there is no comprehensive adipokine panel available. Therefore, the aim of this study was to assess distinct adipokine profiles in patients with normal glucose tolerance (NGT), impaired fasting glucose (IFG), impaired glucose tolerance (IGT) or T2D.MethodsBased on 75 g oral glucose tolerance tests, 124 individuals were divided into groups of IFG (n = 35), IGT (n = 45), or NGT (n = 43). Furthermore, 56 subjects with T2D were included. Serum concentrations of adiponectin, chemerin, fetuin-A, leptin, interleukin (IL)-6, retinol-binding protein 4 (RBP4), monocyte chemoattractant protein (MCP)-1, vaspin, progranulin, and soluble leptin receptor (sOBR) were measured by ELISAs.ResultsChemerin, progranulin, fetuin-A, and RBP4, IL-6, adiponectin and leptin serum concentrations were differentially regulated among the four investigated groups but only circulating chemerin was significantly different in patients with IGT compared to those with IFG. Compared to T2D the IFG subjects had higher serum chemerin, progranulin, fetuin-A and RBP4 levels which was not detectable in the comparison of the T2D and IGT group.ConclusionAlterations in adipokine serum concentrations are already detectable in prediabetic states, mainly for chemerin, and may reflect adipose tissue dysfunction as an early pathogenetic event in T2D development. In addition, distinct adipokine serum patterns in individuals with IFG and IGT suggest a specific role of adipose tissue in the pathogenesis of these prediabetic states.

| S-EPMC2976690 | biostudies-literature

Transcriptional profiles of human islet and exocrine endothelial cells in subjects with or without impaired glucose metabolism

Project description:We report the application of RNA sequencing to quantify the global transcriptome of sorted endothelial cells from the endocrine and exocrine pancreas in normoglycemic and impaired glucose metabolism(IGM) human donors.

2021-01-25 | GSE157546 | GEO

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