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Renal function in anorexia nervosa.

A Aperia, O Broberger, L Fohlin

Acta Paediatrica Scandinavica

|March 1, 1978

Summary

This summary is machine-generated.

This study investigated renal function in teenagers with anorexia nervosa (AN). Findings indicate a primary renal origin for the observed concentrating defect in AN patients, impacting glomerular filtration.

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Area of Science:

Nephrology
Pediatric Endocrinology
Eating Disorders

Background:

Anorexia nervosa (AN) is an eating disorder with significant systemic effects.
Renal complications are a concern in AN, but detailed function assessments are limited.
Adolescent AN patients present unique physiological challenges.

Purpose of the Study:

To evaluate renal function in adolescent patients with anorexia nervosa.
To assess glomerular filtration rate (GFR), PAH clearance (CPAH), and urinary concentrating capacity.
To compare renal function in AN patients with healthy controls.

Main Methods:

Glomerular filtration rate (GFR) and PAH clearance (CPAH) were determined.
Urinary concentrating capacity was assessed after fluid deprivation, with and without vasopressin.

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Studies were conducted on 12 adolescent AN patients and 5 healthy teenagers.

Main Results:

Patients with AN exhibited a significantly lower filtration fraction (FF) compared to controls.
Evidence suggests reduced glomerular capillary water permeability in AN.
Urinary concentrating capacity was moderately depressed in AN patients, indicating a primary renal defect.

Conclusions:

Adolescent anorexia nervosa is associated with impaired renal function.
A reduced filtration fraction in AN may stem from decreased glomerular water permeability.
The urinary concentrating defect in AN is of primary renal origin, not solely due to vasopressin resistance.