Association between diabetes mellitus and olfactory dysfunction: current perspectives and future directions.

Area of Science:

• Endocrinology
• Neuroscience
• Ophthalmology

Background:

• Diabetes mellitus is a growing global health concern with established complications like retinopathy, nephropathy, and neuropathy.
• The impact of dysglycaemia (abnormal blood glucose levels) on the olfactory system remains under-researched.
• Olfactory dysfunction is frequently underdiagnosed despite olfaction's importance for safety, nutrition, and quality of life.

Purpose of the Study:

• To review and discuss existing evidence on the relationship between diabetes and olfaction.
• To explore associations between olfactory dysfunction and diabetes complications.
• To summarize potential pathological mechanisms of olfactory dysfunction in diabetes.

Main Methods:

• Literature review of studies investigating diabetes and olfactory function.
• Analysis of the link between olfactory dysfunction and known diabetes complications.
• Synthesis of proposed pathophysiological pathways.

Main Results:

• Evidence suggests a significant relationship between diabetes and impaired olfaction.
• Olfactory dysfunction may be linked to other diabetes complications, offering insights into pathogenesis.
• Several pathological mechanisms are proposed but require further investigation.

Conclusions:

• Diabetes mellitus is associated with olfactory dysfunction, a complication needing greater clinical attention.
• Understanding the link between diabetes and olfaction may involve examining other diabetes-related pathologies.
• Further research is crucial to elucidate the precise mechanisms of olfactory dysfunction in diabetic patients.