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Hepatic insufficiency after portacaval shunting is prevented by prior intraportal pancreatic islet autotransplantation.

Abstract：

:The extrahepatic diversion of essential splanchnic hepatotrophic factors may cause the liver atrophy and insufficiency that follows portacaval shunting. To investigate this, control dogs with end-to-side portacaval shunts (control-PCS, n = 6) were compared with dogs shunted 1 month after intraportal pancreatic islet autotransplantation (islet-Tx-PCS, n = 5). From the distal pancreas of each experimental dog, 1.95 +/- 0.49 X 10(5) islets were isolated by collagenase digestion and retransplanted within 3 hours. Assays of hepatocellular function (caffeine clearance) and hepatic blood flow (indocyanine green), conventional biochemical liver function tests, and glucose, insulin, and glucagon responses to intravenous glucose challenge were measured monthly and when dogs were killed. Four of six control-PCS dogs were killed 32 +/- 9 days after shunting because of more than 20% body weight loss; one control-PCS dog lost only 7% of body weight by day 56 and stabilized. No significant loss of body weight occurred in islet-Tx-PCS dogs (n = 5). Liver function test abnormalities seen in control-PCS dogs were absent in islet-Tx-PCS dogs. Both control-PCS and islet-Tx-PCS indocyanine green half-life measurements were significantly (p less than 0.05) prolonged at all times, indicating equally reduced hepatic blood flow after shunting for both groups. In contrast, islet-Tx-PCS caffeine half-life periods were significantly (p less than 0.05) shorter than in control-PCS dogs and were similar to those in normal dogs, indicating a protective effect of the transplanted islets on hepatocellular function. We conclude that intraportal pancreatic islet autotransplants prevent, by the local release of hepatotrophic factors within the liver, the metabolic abnormalities and loss of hepatic function after PCS.

journal_name

Surgery

journal_title

Surgery

authors

Callery MP,Ricordi C,Scharp DW,Kamei T,Swanson CJ,Lacy PE,Flye MW

subject

Has Abstract

pub_date

1989-08-01 00:00:00

pages

257-65; discussion 265-6

issue

2

eissn

0039-6060

issn

1532-7361

pii

0039-6060(89)90216-X

journal_volume

106

pub_type

杂志文章

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