Mechanisms of homocysteine-induced glomerular injury and sclerosis

Area of Science:

• Nephrology
• Cardiovascular Medicine
• Biochemistry

Background:

• Hyperhomocysteinemia (hHcys) is a known risk factor for end-stage renal disease (ESRD) and its cardiovascular complications.
• Emerging evidence suggests hHcys directly damages glomerular cells, leading to dysfunction and sclerosis, ultimately causing ESRD.

Purpose of the Study:

• To review recent findings on homocysteine's role as a pathogenic factor in glomerular sclerosis and ESRD.
• To discuss the mechanisms by which homocysteine exerts its damaging effects in the kidney.

Main Methods:

• Literature review of recent scientific findings.
• Analysis of studies investigating homocysteine's impact on glomerular cells and kidney function.

Main Results:

• Homocysteine directly contributes to glomerular dysfunction and sclerosis.
• Key pathogenic mechanisms include oxidative stress, endoplasmic reticulum stress, homocysteinylation, and hypomethylation.

Conclusions:

• Understanding homocysteine's pathogenic mechanisms is crucial for developing targeted therapies.
• Interventions targeting hHcys may prevent kidney function decline and ESRD in at-risk populations.