Clinical trial on the efficacy and safety of added glycine and glucyl glycine to oral rehydration solution

This study was undertaken to determine the efficacy and safety of using an ORS with added glycine and glycyl-glycine. This was a double blind, controlled clinical trial. Randomization was done using permuted blocks of variables lenghts. The code was entrusted to personnel not connected with the research and obtained only after submission of observations. The patients were allocated to receive either the standard WHO-ORS formulation or the ORS-glycine and glycyl-glycine formulation. Addition of glycine and glycyl-glycine did not offer beneficial effects in terms of reduction of stool volume and duration of diarrhea. The absorption-promoting quality of the glycine and glycyl-glycine added to the ORS was observed by the higher weight gain after rehydration, 24 hours and, on discharge, despite a higher stool output. This property was offset by the consequent osmotic penalty

A clinical evaluation of diagnostic significance of serum GPDA activity determination for pancreatic cancer / 第三军医大学学报

There has been no detailed reiport on the changes of the activity of serum glycylproline dipeptidyl aminopeptidase (GPDA) in patients with pancreatic career.Tn this paper,the serum level of GPDA was measured in 166 cases with various malignant and benign gastrointestinal diseases and 60 normal controls.It was found that the serum GPDA activity in patients with pancreatic cancer was 101,02?75.84u/L and significantly higher than that in the patients with pancreatitis and in the normal controls.There was a statistically significant difference of the GPDA activity value between the patients with malignant and benign pancreatic diseases.The elevation of GPDA activity was more marked in those patients with cancers in the head of the pancreas.In addition,the elevation of GPDA activity was dependent on the differentiation of cancer cells but not on the size of cancers.Significantly higher level of GPDA was also found in patients with hepatic carcinoma and carcinoma of ampulla of vater but significantly lower level in patients with gastric cancer.It is believed that the determination of serum GPDA activity might be helpful for the diagnosis of pancreatic cancer.