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Biomedical subjects

Y Avni

Publications and source records attributed to Y Avni.

7 recordsLinked to original sources

The effect of chronic captopril administration on hepatic blood flow of the rat.

The effect of chronic captopril administration on indocyanine green (ICG) clearance and hepatic extraction has been studied in the rat using the intact liver for ICG clearance and the isolated perfused liver for ICG extraction. The captopril was added to the drinking water to give a calculated daily intake from 0-45 mg kg-1. Hepatic clearance of ICG was dose related from 16.5 +/- 2.4 (control) to 7.2 +/- 1.6 mL min-1 kg-1, respectively. The hepatic extraction of ICG was not significantly different (37 +/- 6%) from the control value in groups on 4 and 45 mg kg-1 daily. Since ICG clearance and extraction are dependent on hepatic blood, a change in ICG clearance without a change in the extraction reflects a similar change in the hepatic blood flow. This remained unchanged at daily captopril intakes of 1 and 4 mg kg-1 and decreased when the daily intake was 10 mg kg-1 or higher. If these results in the rat are applicable to man, the chronic administration of therapeutic doses of captopril (0.5-2 mg kg-1) will not affect the hepatic blood flow.

Animals

The significance of unexplained dilated common bile duct at endoscopic retrograde cholangiopancreatography.

The clinical significance of unexplained dilation of the common bile duct (CBD) seen at endoscopic retrograde cholangiopancreatography (ERCP) in non-jaundiced patients with abdominal pain, was studied in a group of 14 patients. A CBD diameter of more than 15 mm was associated with choledocholithiasis (29%), periampullary carcinoma (14%), papillary stenosis (14%), or no definite pathology (43%) during a follow-up of 20 months. Dilation of the CBD exceeding 20 mm, was associated with periampullary carcinoma or papillary stenosis in 80% of the patients. It is recommended that such a group of patients be followed very closely, and the ERCP examination repeated within a few months.

Aged

[Duodenitis].

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Duodenitis

Gastric emptying in chronic renal failure patients on hemodialysis.

We studied gastric emptying of solid food, using a radionuclide technique, in 18 patients with chronic renal failure patients on hemodialysis: nine with nausea and vomiting or postprandial bloating and nine without. Both groups were compared with a group of normal subjects. Gastric emptying was consistent with a linear elimination in all groups. The regression coefficients of the symptomatic, asymptomatic, and control groups were -0.48 +/- 0.1%, -0.5 +/- 0.14%, and -0.58 +/- 0.15% min, respectively. These were not statistically different. Half-emptying times were 116.4 +/- 7.1 min, 97.8 +/- 13.7 min, and 98.7 +/- 5.6 min, respectively. These also were not statistically different. Values of percentage retention at 2.5 hours for the same groups were 31.6 +/- 5, 24.8 +/- 6.4, and 18.6 +/- 4.4, respectively, again with no statistical difference. Patients with chronic renal failure on hemodialysis, symptomatic or asymptomatic, have no obvious impairment of gastric emptying of solids.

Adult

[Food allergy].

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Diet