Regulatory 3'UTR variant in the melatonin receptor 1B gene that affects MTNR1B expression levels and plasma melatonin dynamics, modulating the circadian suppression of pancreatic insulin secretion and metabolic health

Intronic variant in TOMM40 (translocase of outer mitochondrial membrane 40) associated with aging-related verbal memory decline, accelerated hippocampal atrophy, and Alzheimer's disease risk, with effects partially independent of APOE

Intronic MTRR variant associated with reduced enzyme expression and impaired B12-dependent homocysteine remethylation

Promoter variant in skeletal muscle uncoupling protein 3 that increases UCP3 expression and fatty acid oxidation, with associations with BMI, insulin resistance, and type 2 diabetes risk

Intronic CYP2C8 variant linked to epoxygenase pathway activity, hypertension susceptibility, COPD risk, and bladder cancer protection

Intronic regulatory variant in ELK3 influencing circulating TSH levels and hypothyroidism susceptibility — the rare A allele increases risk by approximately 28% per copy

Regulatory variant that increases PPARD transcription, enhancing fat oxidation during exercise and endurance capacity; the C allele is associated with elite endurance athlete status

Intronic USF1 variant; the T allele disrupts insulin-responsive USF1 regulation and is associated with familial combined hyperlipidemia susceptibility and elevated triglycerides

Intronic NRF1 variant associated with baseline differences in ventilatory threshold and running economy — the T allele predicts lower aerobic efficiency independent of training, with a stronger signal (p=0.004) than the companion rs6949152 variant (p=0.047)

Pathogenic missense variant in TGFBR2 (Leu308Pro) causing Loeys-Dietz syndrome type 2 — a connective tissue disorder with high risk of early aortic aneurysm and dissection requiring lifelong cardiovascular surveillance