0000000000531053

AUTHOR

Vita Rovīte

Genome-Wide Association Study of Diabetic Kidney Disease Highlights Biology Involved in Glomerular Basement Membrane Collagen

BACKGROUND: Although diabetic kidney disease demonstrates both familial clustering and single nucleotide polymorphism heritability, the specific genetic factors influencing risk remain largely unknown.METHODS: To identify genetic variants predisposing to diabetic kidney disease, we performed genome-wide association study (GWAS) analyses. Through collaboration with the Diabetes Nephropathy Collaborative Research Initiative, we assembled a large collection of type 1 diabetes cohorts with harmonized diabetic kidney disease phenotypes. We used a spectrum of ten diabetic kidney disease definitions based on albuminuria and renal function.RESULTS: Our GWAS meta-analysis included association result…

research product

Melanokortīnu un purīnu receptoru funkcionalitāte un ģenētika

Melanokortīnu un purīnu receptoru funkcionalitāte un ģenētika Anotācija Darba mērķis bija pētīt funkcionāli raksturīgās pazīmes, kas ir būtiskas receptoru aktivācijā divās GPCR apakšgrupās ar strukturāli atšķirīgiem dabīgo ligandu veidiem, lietojot raugu ekspresijas sistēmu, un pētīt melanokortīnu un purīnu nozīmību multifaktoriālajās slimībās ar ģenētiskās asociācijas metodēm. MC4R 126. pozīcijas un P2Y12R 181., 256., 265. un 280 pozīciju randomās bibliotēkas analīze parādīja, šo pozīciju nozīmību receptora signāla pārnesē. Iegūts arī 3D modelis P2Y12R liganda piesaistes raksturošanai. Ģenētiskā saistība netika atrasta starp P2RY1 lokusu un miokarda infarktu, kā arī ar citiem saistītiem fe…

research product

Genome-wide association study of diabetic kidney disease highlights biology involved in renal basement membrane collagen

Diabetic kidney disease (DKD) is a heritable but poorly understood complication of diabetes. To identify genetic variants predisposing to DKD, we performed genome-wide association analyses in 19,406 individuals with type 1 diabetes (T1D) using a spectrum of DKD definitions basedon albuminuria and renal function. We identified 16 genome-wide significant loci. The variant with the strongest association (rs55703767) is a common missense mutation in the collagen type IV alpha 3 chain(COL4A3)gene, which encodes a major structural component of the glomerular basement membrane (GBM) implicated in heritable nephropathies. The rs55703767 minor allele (Asp326Tyr) is protective against several definit…

research product