Nutraceutical Prevention of Diabetic Complications-Focus on Dicarbonyl and Oxidative Stress

Area of Science:

• Biochemistry
• Cell Biology
• Endocrinology

Background:

• Diabetes complications arise from oxidative and dicarbonyl stress due to excess glucose metabolism.
• Methylglyoxal, a reactive dicarbonyl compound, significantly contributes to diabetic pathology.
• Effective insulin activity is crucial for regulating glucose metabolism and preventing stress accumulation.

Purpose of the Study:

• To explore the mechanisms underlying oxidative and dicarbonyl stress in diabetes.
• To identify key molecular targets and pathways for therapeutic intervention.
• To evaluate the potential of nutraceuticals and minerals in managing diabetic complications.

Main Methods:

• Investigated the role of methylglyoxal detoxification pathways, particularly the glyoxalase system.
• Examined the regulation of glyoxalase I transcription by Nrf2 and zinc-mediated pathways.
• Reviewed the impact of various compounds and interventions on oxidative stress markers and diabetic complications.

Main Results:

• Glyoxalase I, rate-limiting for methylglyoxal detoxification, is upregulated by Nrf2 activators (lipoic acid, sulforaphane, glycine) and zinc.
• Zinc promotes glyoxalase I and metallothionein transcription, potentially explaining its protective effects.
• Multiple strategies targeting oxidative stress, including mitophagy, UCP2 induction, and Nrf2 activation, are proposed.

Conclusions:

• Targeting methylglyoxal metabolism via glyoxalase I induction is a promising therapeutic strategy for diabetic complications.
• Nutraceuticals and minerals like zinc, acting through pathways like Nrf2, can mitigate diabetic stress.
• A multi-pronged approach addressing both dicarbonyl and oxidative stress is essential for managing diabetes complications.