URINARY OXALIC ACID EXCRETION BY MAN FOLLOWING INGESTION OF LARGE AMOUNTS OF ASCORBIC ACID

Oxalic acid excretion after intravenous ascorbic acid administration.

Ascorbic acid is frequently administered intravenously by alternative health practitioners and, occasionally, by mainstream physicians. Intravenous administration can greatly increase the amount of ascorbic acid that reaches the circulation, potentially increasing the risk of oxalate crystallization in the urinary space. To investigate this possibility, we developed gas chromatography mass spec...

Hippuric acid excretion after benzylamine ingestion in man.

The fate of 14C-benzylamine after oral administration as the hydrochloride has been investigated in two male volunteers. Over 98% of the administered radiolabel was excreted in the urine as 14C-hippuric acid within 24 hours. The rate of urinary hippuric acid excretion was extremely rapid, with more than 90% of the dose excreted after three hours.

Effects of adrenohypophyseal hormones upon urinary excretion of glucuronic acid and ascorbic acid.

It was previously reported by the authors (1) that, in a normal rat with daily administration of 100 mg/kg borneol and intraperitoneal injection of 400 mg/kg glucuro nolactone for the period of 13 days, the amounts of total glucuronic acid, of o-glucuronide and of 1-ascorbic acid excreted in rat's urine, increased significantly, and that, in a bilate rally adrenalectomized rat administrated dai...

Urinary methylmalonic acid excretion.

Gastric acid and urinary acid excretion.

1 Saverymuttu SH, Peters AM, Lavender PJ, Hodgson HJ, Chadwick VS. "'Indium autologous leucocytes in inflammatory bowel disease. Gut 1983; 24: 293-9. 2 Bernstein J. Colonic ulceration and bleeding during diclofenac therapy. N Engl J Med 1990; 323: 135. 3 Bjarnason I, Price AB. Effect of NSAID on the large bowel. GI Futures and Clin Pract 1988; 3: 7-10. 4 Rampton DS. NSAID and the lower gastroin...