Alpha-Lipoic Acid Applications in Diabetes Management

Alpha-lipoic acid (ALA) is a naturally occurring disulphide compound that functions as a mitochondrial cofactor and a potent antioxidant. In the context of diabetes mellitus, ALA has been investigated for its capacity to neutralise reactive oxygen species, regenerate endogenous antioxidants such as glutathione, vitamin C and vitamin E, and modulate key signalling pathways involved in glucose metabolism. By activating adenosine monophosphate-activated protein kinase (AMPK), ALA enhances insulin-mediated glucose uptake in skeletal muscle and adipose tissue, thereby improving insulin sensitivity. Clinical studies have demonstrated benefits in diabetic peripheral neuropathy, showing reductions in pain and paraesthesia through attenuation of oxidative stress and inflammatory cytokines. Recent advances in formulation science have addressed ALA’s inherent pharmacokinetic limitations—short half-life and limited oral bioavailability—through novel delivery systems that prolong systemic exposure. Given the global prevalence of type 2 diabetes and its complications, ALA represents a promising adjunctive therapy with the potential to improve glycaemic control, lipid profiles and inflammatory markers across diverse patient populations.

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Alpha-Lipoic Acid Applications in Diabetes Management publication trend

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Technical terms

Oxidative stress: imbalance between the generation of reactive oxygen species and the capacity of antioxidant defence mechanisms, leading to cellular damage.

Reactive oxygen species (ROS): chemically reactive molecules containing oxygen, such as superoxide and hydrogen peroxide, that can damage proteins, lipids and nucleic acids.

Bioavailability: proportion of an administered substance that reaches systemic circulation and is available for physiological activity.

Diabetic peripheral neuropathy: nerve damage in the extremities resulting from chronic hyperglycaemia and microvascular dysfunction, characterised by pain and sensory loss.

Nuclear factor erythroid 2–related factor 2 (Nrf2): transcription factor that regulates antioxidant gene expression in response to oxidative stress.

Adenosine monophosphate-activated protein kinase (AMPK): cellular energy sensor that promotes glucose uptake and fatty acid oxidation when activated.

References

1. Insights on the Use of α-Lipoic Acid for Therapeutic Purposes. Biomolecules (2019).
2. The effects of alpha-lipoic acid supplementation on inflammatory markers among patients with metabolic syndrome and related disorders: a systematic review and meta-analysis of randomized controlled trials. Nutrition & Metabolism (2018).
3. A Clinical Trial about a Food Supplement Containing α-Lipoic Acid on Oxidative Stress Markers in Type 2 Diabetic Patients. International Journal of Molecular Sciences (2016).