Genetic Variants Associated with Chronic Kidney Disease in a Spanish Population

Area of Science:

• Genetics and Genomics
• Nephrology
• Biochemistry

Background:

• Chronic kidney disease (CKD) involves complex physiological pathways influenced by genetic factors.
• Understanding genetic predisposition is crucial for identifying individuals at risk for CKD.
• Previous studies have suggested associations between certain genes and CKD, but comprehensive analysis is needed.

Purpose of the Study:

• To investigate the association between genetic polymorphisms in candidate genes and the susceptibility to CKD in a Spanish population.
• To explore the relationship between these genetic variations and CKD-related pathologies and biochemical parameters.

Main Methods:

• Genotyping of 722 Spanish adults (548 CKD patients, 174 controls) for 38 single nucleotide polymorphisms (SNPs).
• Analysis focused on genes involved in inflammation, fibrogenesis, DNA repair, antioxidant capacity, and other pathways linked to CKD.
• Statistical analysis to identify significant associations between SNPs and CKD, comorbidities, and biochemical markers.

Main Results:

• Significant associations were found between CKD and polymorphisms in GPX1, GSTO1, GSTO2, UMOD, and MGP.
• Associations with CKD-related conditions included hypertension (GPX4, CYP11B2, ERCC4) and predisposition to cardiovascular disease, diabetes, and cancer (ERCC2).
• Several genes showed associations with key CKD biochemical parameters like creatinine, glomerular filtration rate, hemoglobin, and albumin.

Conclusions:

• Genetic polymorphisms in GPX1, GSTO1, GSTO2, UMOD, and MGP are associated with CKD susceptibility in the studied Spanish population.
• The findings highlight the role of specific genetic variations in CKD pathogenesis and related complications.
• This study provides further evidence for the genetic underpinnings of CKD, supporting the second comprehensive investigation in Spanish patients.