Author: raghda hisham khalil
Association between CNR1 gene polymorphisms and susceptibility to diabetic nephropathy in Iraqi patients with T2DM
In individuals with type 2 diabetes mellitus (T2DM), the cannabinoid receptor 1 (CNR1) gene polymorphism has been linked to diabetic nephropathy (DN). Different renal disorders, including DN, have been found to alter cannabinoid (CB) receptor expression and activation. This cross-sectional study aimed to investigate the relationship between CNR1 rs1776966256 and rs1243008337 genetic variants and the risk of developing DN in Iraqi patients with T2DM. The study included 100 patients with T2DM, divided into two groups: 50 with DN and 50 without DN. Genotyping of CNR1 rs1776966256 and rs1243008337 polymorphisms was conducted using PCR in DN patients and control samples. The distribution of rs1776966256 and rs1243008337 genotypes and alleles between the two groups revealed statistically significant differences. The frequencies of the GG and AG genotypes of CNR1 rs1776966256 were significantly different between DN patients and the control group. Additionally, compared to the A allele, the G allele of this polymorphism was linked to a higher incidence of DN (p=0.0001). Patients with the genetic polymorphism rs1243008337 had higher genotypes of CC and AC and were more likely to develop DN in the polymorphism genotype than the wild genotype. Additionally, compared to the A allele, the C allele was linked to a higher chance of developing DN (p=0.0001). Both rs1776966256 and rs1243008337 polymorphisms were correlated with the development of diabetic nephropathy. Keywords cannabinoid receptor 1,diabetes mellitus diabetic nephropathy ,gene polymorphism DOI link : DOI: 10.25122/jml-2023-0181
Correlation of Kidney Injury Molecule-1 and Nephrin Levels in Iraqi Patients with Diabetic Nephropathy
Abstract Background: Diabetic nephropathy is characterized by persistent microalbuminuria and metabolic changes that decline renal functions. Researchers have been prompted to explore new biomarkers such as KIM-1 and nephrin that may enhance the identification of disease. Objective: To Evaluate biomarker levels of kidney injury molculre-1 (KIM-1) concentration and nephrin as early and sensitive markers of nephropathy in type 2 diabetic patients. Method: One hundred T2DM patients were included in a cross-sectional study at the specialized center for endocrinology and diabetes, Baghdad. The first group includes 50 diabetic nephropathy (DN) patients, and the second group includes 50 T2DM patients without DN. Biochemical and clinical parameters were reported for participants, and serum and urine levels of KIM-1 and nephrin were analyzed by Enzyme-linked immunosorbent assay. Results: The study showed a significant increase in serum and urinary levels of KIM-1 and nephrin in DN patients compared to the control group. Serum nephrin is positively correlated with urinary nephrin, serum creatinine, ACR ratio, serum and urine KIM-1, and negatively correlated with the estimated glomerular filtration rate. Urinary nephrin was positively correlated with urinary albumin/creatinine ratio, KIM-1 level in both serum and urine, and negatively correlated with estimated glomerular filtration rate. Conclusion: KIM-1 and nephrin are specific and sensitive indicators of early-stage diabetic nephropathy-associated renal damage. Keywords: T2DM, Diabetic nephropathy, KIM-1, Nephrin, Renal function DOI: https://doi.org/10.54133/ajms.v5i.167