Postural Proteinuria Research Articles

STUDIES ON HUMAN PROTEINURIA

Observations on the transfer of labelled albumin from plasma into urine were made in five children with postural proteinuria. Transfer of labelled protein occurs rapidly during lordosis. During the period of decreasing proteinuria that occurs upon cessation of lordosis, no transfer of labelled protein could be observed. These findings suggest that the functional alteration causing postural proteinuria is rapidly reversible, occurring only during the orthostasis. Despite the similarity in composition of proteins in postural proteinuria and in lymph, the rates of protein transfer and the similar specific activity of serum and urinary protein suggest that the site of transfer is the glomerular capillary. Immunologic study of the urinary proteins indicate that the γ-globulin excreted in postural proteinuria is similar to that of serum, in contrast to the γ-globulin excreted in exercise proteinuria and "normal" urinary protein which reveal altered characteristics.

The role of posture in cardiovascular disease.

Excerpt The cardiologist is frequently confronted with disturbances associated with posture. Angina decubitus and postural hypotension are familiar examples. The physiologic mechanism controlling t...

Chronic renal insufficiency. I. Appraisal of the patient. II. Treatment.

Excerpt Progress in the treatment of renal insufficiency has been spectacular in the past few years. We have seen a changing point of view with respect to the healing or alterability of renal lesio...

Lymphuria as an Explanation of the Postural Proteinuria

Lymphuria as an Explanation of the Postural Proteinuria