Endocrine disorders and musculoskeletal diseases

Area of Science:

• Endocrinology
• Neurology
• Rheumatology

Background:

• Diabetes mellitus presents various clinical features that warrant further investigation.
• Autonomic neuropathy's impact on tear production and limited joint mobility are key concerns.
• The relationship between diabetes, thyroid disorders, and autoimmune conditions requires clarification.

Purpose of the Study:

• To analyze the effect of autonomic neuropathy on tear production in diabetes mellitus.
• To discuss limited joint mobility in diabetes and suggest future research directions.
• To investigate neurophysiologic findings in diabetic polyneuropathy, fracture rates, bone mass, and the association of hypothyroidism with gout and autoimmune thyroid diseases.

Main Methods:

• Analysis of clinical features in diabetes mellitus.
• Neurophysiologic assessment of the median nerve.
• Review of studies on fracture rates, bone mass, and hypothyroidism.

Main Results:

• Autonomic neuropathy may affect tear production in diabetes.
• Distinguishing diabetic polyneuropathy from carpal tunnel syndrome is possible with neurophysiologic assessment, though modified by Martin-Gruber anastomosis.
• Fracture rates are not increased in diabetes; thyroxine therapy may affect bone mass.
• Hypothyroidism's association with gout is debated, and autoimmune thyroid diseases can produce anticardiolipin antibodies without antiphospholipid syndrome.

Conclusions:

• Diabetes mellitus is associated with secondary Sjögren's syndrome and potential autonomic dysfunction affecting tear production.
• Further research is needed on limited joint mobility in diabetes.
• The study clarifies neurophysiologic findings, bone health, and links between thyroid disorders and autoimmune conditions in diabetic patients.