Pathophysiology of idiopathic hypercalciuria: the current concept

Area of Science:

• Nephrology
• Metabolic Bone Disease
• Nutritional Science

Background:

• Idiopathic hypercalciuria (IH) research has historically focused on isolated disease facets.
• A lack of a unifying concept hinders comprehensive understanding and treatment of IH.

Purpose of the Study:

• To present a unifying concept for idiopathic hypercalciuria.
• To link excessive meat protein intake to other key features of IH.

Main Methods:

• Review of existing literature.
• Synthesis of data to propose a central role for meat protein intake.

Main Results:

• Excessive meat protein intake is proposed as a central factor in IH.
• This intake is linked to genetic bone demineralization, fasting hypercalciuria, and altered 1,25-dihydroxyvitamin D and cytokine production.

Conclusions:

• A unifying concept for IH centers on excessive meat protein intake.
• This perspective integrates various phenotypic aspects of the disease for a more holistic understanding.