Key result
Diabetes and depression share a bidirectional relationship driven by multiple pathophysiological mechanisms, including HPA axis dysregulation, monoamine deficiency, oxidative stress, and neuroinflammation.
This review highlights the bidirectional relationship between diabetes and depression and the underlying pathological mechanisms linking the two conditions.
Supports screening for depression in diabetes; leaves open the need for RCTs to guide bidirectional management.
Diabetes mellitus is a strong molecular etiological upstream event that leads to different pathological problems like Cardio-vascular disease, nephropathy, neuropathy, retinopathy, hearing loss, and immunological disturbances, the most common of which is depression. Diabetes and depression relationship is thought to be bidirectional, meaning that depression can lead to diabetes and diabetes can assist the onset of depression. Depression is one of the most overlooked symptoms in diabetes patients, and it is strongly related to a decline in quality of life. Several pathological links are discussed in this review, including dysregulation of the hypothalamic pituitary-adrenal (HPA) axis and neurotransmitter systems, particularly the monoaminergic system, the role of oxidative stress, neuroinflammation, and cell death, impaired neurogenesis and BDNF synthesis, particularly in the hippocampus and prefrontal cortex, brain areas that regulate emotional behaviour, and finally, epigenetic factors.
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Modak et al. (2021) conducted a review in Diabetes mellitus and depression. Diabetes mellitus was evaluated. Diabetes and depression share a bidirectional relationship driven by multiple pathophysiological mechanisms, including HPA axis dysregulation, monoamine deficiency, oxidative stress, and neuroinflammation.
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