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Report for Clinical Trial NCT03458494

Developed by Shray Alag, 2020.
SNP Clinical Trial Gene

The TCF7L2 Gene: Nutrigenomics and Dietary Prevention of Type 2 Diabetes

Nutrients and chemicals in food are able to regulate expression of genetic elements. Gene-nutrient interaction in response specific diets can increase an individual's risk, shifting the individual from health toward the development of chronic disease. The Transcription Factor 7 Like 2 (TCF7L2) gene may either put individuals at risk for or protect from Type 2 diabetes mellitus in the presence of certain foods. The main purpose of this four-week study is to examine diet-induced gene-nutrient interaction, with a focus on glucose, insulin, inflammation (CRP) and the plasma metabolome in individuals who have either the CC or the TT form of the rs7903146 single nucleotide polymorphism (SNP) (C/T) within the TCF7L2 gene. The (2) one-week study diets, one Mediterranean diet (MedDiet) based and the other low-fat based will be separated by a (1) week return to a regular habitual diet.

NCT03458494 Type2 Diabetes Glucose, High Blood
MeSH: Diabetes Mellitus, Type 2 Hyperglycemia
HPO: Hyperglycemia Postprandial hyperglycemia Type II diabetes mellitus

2 Interventions

Name: Mediterranean Diet

Description: Participants will receive meals traditionally consumed in Mediterranean countries

Type: Other

Mediterranean Diet

Name: Low-fat diet

Description: Participants will receive meals with a low content of total fat.

Type: Other

Low-fat diet


Primary Outcomes

Description: Plasma glucose levels (mg/dl) will be measured in the fasting state during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP

Measure: Glucose

Time: 1 week per intervention arm

Secondary Outcomes

Description: Fasting plasma insulin levels (pmol/l) will be measured in the fasting state during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP

Measure: Insulin

Time: 1 week per intervention arm

Description: The response of plasma metabolites to the Mediterranean and low-fat diets diet) will be measured using ultra high-performance liquid chromatography/tandem accurate mass spectrometry (UHPLC/MS/MS) during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP

Measure: Metabolomics

Time: 1 week per intervention arm

Description: Fasting plasma concentrations of VLDL in mg/dl, assessed by proton nuclear magnetic resonance (NMR) spectroscopy will be measured during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP

Measure: Very low density lipoproteins (VLDL)

Time: 1 week per intervention arm

Description: Fasting plasma concentrations of LDL in mg/dl, assessed by proton nuclear magnetic resonance (NMR) spectroscopy will be measured during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP

Measure: Low-density lipoproteins (LDL)

Time: 1 week per intervention arm

Description: Fasting plasma concentrations of HDL in mg/dl, assessed by proton nuclear magnetic resonance (NMR) spectroscopy will be measured during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP

Measure: High-density lipoproteins (HDL)

Time: 1 week per intervention arm

Description: Plasma C-reactive protein (mg/dl) will be measured in the fasting state during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP

Measure: CRP

Time: 1 week per intervention arm

Purpose: Prevention

Allocation: Randomized

Crossover Assignment


There is one SNP

SNPs


1 rs7903146

The main purpose of this four-week study is to examine diet-induced gene-nutrient interaction, with a focus on glucose, insulin, inflammation (CRP) and the plasma metabolome in individuals who have either the CC or the TT form of the rs7903146 single nucleotide polymorphism (SNP) (C/T) within the TCF7L2 gene.

Plasma glucose levels (mg/dl) will be measured in the fasting state during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP.

Fasting plasma insulin levels (pmol/l) will be measured in the fasting state during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP.

The response of plasma metabolites to the Mediterranean and low-fat diets diet) will be measured using ultra high-performance liquid chromatography/tandem accurate mass spectrometry (UHPLC/MS/MS) during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP.

Fasting plasma concentrations of VLDL in mg/dl, assessed by proton nuclear magnetic resonance (NMR) spectroscopy will be measured during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP.

Fasting plasma concentrations of LDL in mg/dl, assessed by proton nuclear magnetic resonance (NMR) spectroscopy will be measured during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP.

Fasting plasma concentrations of HDL in mg/dl, assessed by proton nuclear magnetic resonance (NMR) spectroscopy will be measured during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP.

Plasma C-reactive protein (mg/dl) will be measured in the fasting state during each one of the intervention phases (the Mediterranean and low-fat diets) in participants with the TT and CC genotypes at the TCF7L2 rs7903146 SNP.

The rs7903146 single nucleotide polymorphism (SNP) (C/T) within the TCF7L2 gene is the most replicated T2D-associated SNP.

For this purpose, a four-week study will be conducted to examine diet-induced gene-nutrient interaction, with a focus on glucose, insulin, and inflammation (CRP) in individuals who have either the CC or the TT form of the rs7903146 single nucleotide polymorphism (SNP) (C/T) within the TCF7L2 gene.



HPO Nodes


HPO:
Hyperglycemia
Genes 66
BLK CACNA1S CACNA1S KCNJ11 IL6 KCNJ11 CEL HNF1A INSR SHPK STAT3 GYS2 INS ZFP57 PTF1A ABCC8 ABCC8 INS LMNA PDX1 ABCC8 KCNJ11 INS GCK INS KCNE3 ZMPSTE24 INSR HYMAI HNF4A ABCC8 GCK INS ITPR3 ZFP57 PLAGL1 KCNJ11 SCN4A APPL1 HNF1A NEUROD1 ABCC8 ACAT1 PPARG GCK RFX6 PAX4 HNF1A ARMC5 GYS2 GABRA3 LMNA PDX1 PTPN22 KCNJ11 GATA6 LMNA GLI3 LRPPRC HYMAI KCNJ18 KLF11 EIF2AK3 KCNJ11 PDX1 PIK3R1
Postprandial hyperglycemia
Genes 11
GABRA3 SCN4A KCNE3 CACNA1S CACNA1S KCNJ18 INSR INSR SHPK GYS2 GYS2
Type II diabetes mellitus
Genes 182
SNRPN USH2A PDE6A IDH3A LIPC SNORD116-1 GTF2I GCGR C8ORF37 BAZ1B PCARE TRNH RP1 PRPF6 LMNA IPW IFT88 PDE6B ZNF408 ABCC8 RGR TTC8 PROM1 PDX1 AR ND4 NPAP1 HGSNAT NEK2 RFC2 CA4 KLF11 SEMA4A BEST1 TRNL1 RHO IDH3B MKRN3 SCAPER PPARG PCNT PEX10 TUB XRCC4 SNRNP200 SLC2A2 CEP19 CRB1 ABCA4 EYS MAPK8IP1 TRNQ TCF7L2 POLR3A RP9 GTF2IRD1 TRNE FBN1 PRPF4 AKT2 ZNF513 ARL6 TRNS2 RDH12 CRX STUB1 ARL3 NEUROD1 KLHL7 RBP3 SPINK1 NR2E3 ALMS1 TRNS1 KCNJ11 LIMK1 INSR HNF1A ARL2BP BRAF RPE65 AHR PWRN1 GLRX5 PRPF31 MAK PNPLA6 PRCD RLBP1 HNF1B AHI1 IMPDH1 TRNK AGBL5 TRNL1 TULP1 DHX38 GPD2 HMGA1 ATM NDN COX1 FAM161A NRL DHDDS CDHR1 MAGEL2 MKRN3-AS1 CLIP2 CTNNB1 AIP TRNF SLC12A3 IFT140 SLC30A8 RP2 POLA1 ND1 REEP6 IMPG2 ELN PWAR1 LIG4 RETN BLM PDX1 CNGA1 TRNW COX3 IRS1 INSR ROM1 BBS2 PRPF3 GCK KIZ TBL2 COX2 WFS1 GCK PRPH2 LRAT ABCC8 SNORD115-1 PRPF8 SPATA7 ENPP1 GUCA1B MEN1 IRS2 MERTK POMGNT1 HNF4A WRN ND6 HNF1A PTPN1 PPP1R3A CERKL CLRN1 PAX4 SLC7A14 KIAA1549 MC4R IGF2BP2 PDE6G ARHGEF18 SAG MOG AMACR TOPORS MTNR1B CLCNKB ND5 PLCD1 OFD1 FSCN2 IFT172 HERC2 CYP19A1 RPGR CNGB1