Neuromodulatory Control of Oxidative Stress Pathways in Diabetic Vascular and Haematological Complications

Ivan Mutebi

Department of Pharmacognosy Kampala International University Uganda

Email: ivan.mutebi@studwc.kiu.ac.ug

                                                                                               ABSTRACT
Diabetes mellitus is a chronic metabolic disease characterized by persistent hyperglycaemia, insulin resistance, mitochondrial dysfunction, endothelial injury, immune dysregulation, and oxidative stress. Oxidative stress is a central mechanism driving both vascular and haematological complications of diabetes, including endothelial dysfunction, atherosclerosis, nephropathy, retinopathy, neuropathy, platelet hyperreactivity, red blood cell damage, impaired erythropoiesis, and anaemia. However, oxidative stress in diabetes is not controlled only by glucose metabolism; it is also shaped by neuromodulatory systems. The autonomic nervous system, hypothalamicpituitary-adrenal axis, vagus nerve, sympathetic-adrenal-medullary system, neuroimmune reflexes, and neurotransmitter signalling regulate vascular tone, inflammatory cytokines, mitochondrial activity, immune-cell function, coagulation, and redox balance. In diabetes, autonomic imbalance is common, with sympathetic overactivity, reduced parasympathetic tone, impaired baroreflex function, and cardiovascular autonomic neuropathy. This dysregulation enhances reactive oxygen species production, reduces nitric oxide bioavailability, promotes endothelial inflammation, increases platelet activation, impairs microvascular perfusion, and weakens neuroimmune control of inflammation. At the haematological level, neuromodulatory dysfunction contributes to oxidative red blood cell injury, abnormal platelet activation, impaired erythropoietin regulation, iron dysregulation, and inflammatory anaemia. This review discusses the neuromodulatory control of oxidative stress pathways in diabetic vascular and haematological complications, highlighting autonomic, neuroendocrine, inflammatory, mitochondrial, and therapeutic mechanisms.

Keywords: Diabetes mellitus; neuromodulation; oxidative stress; vascular complications; haematological complications.

CITE AS: Ivan Mutebi (2026). Neuromodulatory Control of Oxidative Stress Pathways in Diabetic Vascular and Haematological Complications. IDOSR JOURNAL OF APPLIED SCIENCES 11(2):8-14.
https://doi.org/10.59298/IDOSRJAS/2026/112814