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Biomedical subjects

A Mishima

Publications and source records attributed to A Mishima.

At least 73 records · Page 4Linked to original sources

Effects of intra- and extrahepatic portal systemic shunts on insulin metabolism.

To study the effects of intra- and extrahepatic portal-systemic shunts on insulin degradation, 11 patients with liver cirrhosis and 7 noncirrhotic patients with liver disease were studied with percutaneous transhepatic catheterization. Insulin levels in portal and peripheral blood were measured simultaneously for 1-2 hr after intravenous administration of glucose. The degrees of intra- and extrahepatic portal-systemic shunting were measured with this technique using 131I-macroaggregated albumin and 99mTc-macroaggregated albumin. The amount of insulin secreted and insulin degraded were assessed from the areas under blood concentration curves for portal and peripheral blood. Insulin degradation was significantly reduced in cirrhotics compared to noncirrhotics with liver disease, although there was no difference in the amount of insulin secreted between these two groups. It was also correlated significantly with the degree of intrahepatic shunting but not with the degree of extrahepatic shunting. These results suggest that intrahepatic shunting plays an important role in the reduction of insulin degradation in cirrhosis.

Glucose Tolerance Test↗

The effect of chronic habitual alcohol intake on the development of liver cirrhosis and hepatocellular carcinoma: relation to hepatitis B surface antigen carriage.

To study the effects of habitual alcohol intake on the latency period for the development of liver cirrhosis and hepatocellular carcinoma (HCC), 158 patients with cirrhosis and 79 with HCC were analyzed with respect to age at the time of diagnosis. They were classified into four groups based on hepatitis B surface antigen (HBsAg) in serum, and the history of intake of more than one small bottle of Japanese "sake" or an equivalent per day for more than 10 years. The average age of HBsAg positive male cirrhotics with a drinking habit (n = 10) was 38.8 years, 10.5 years younger than that of those without a drinking habit (n = 8) (P less than 0.05). The average age of HBsAg negative cirrhotics with a drinking habit (n = 97) was 47.9 years, eight years younger than that of those not drinking (n = 36) (P less than 0.001). There was no significant difference in the laboratory data between these groups. The average age of the HBsAg positive HCC patients with a drinking habit (n = 20) was 48.9 years, nine years younger than that of those without a drinking habit (n = 12) (P less than 0.05). The average age of HBsAg negative male HCC cases with habitual intake of more than 126 ml of ethanol per day was 51.0 years (n = 8), ten years younger than that of nondrinking male HCC cases (n = 11) (P less than 0.05). These data suggest that habitual alcohol intake may promote the development of liver cirrhosis and HCC, especially in HBsAg carriers.

Adult↗