Abstract:
:The effects of elevated EPI and CORT levels on KG, SI, and SG were studied in dogs with alloxan-induced diabetes. Conscious dogs received SAL, EPI 20 ng.kg-1.min-1 for 30 min (short EPI) or 72 h (long EPI), or CORT 200 micrograms.kg-1.min-1 for 60 min (short CORT) or 72 h (long CORT) before assessment of glucose metabolism by rapid sampling for glucose and insulin levels after 300 mg/kg i.v. glucose and exogenous insulin infusion designed to simulate the normal secretory pattern. With EPI infusion, KG fell acutely from 2.9 +/- 0.4 to 2.0 +/- 0.2%/min (SAL vs. short EPI, P < 0.05), but rose to 3.4 +/- 0.4%/min during long EPI. Minimal-model analysis of the glucose response with the insulin data as input showed that SI decreased acutely from 4.7 +/- 1.8 to 2.5 +/- 0.6 x 10(-5) min-1/pM (SAL vs. short EPI, P < 0.05), but rose to 4.5 +/- 2.5 x 10(-5) min-1/pM during long EPI. The effects of EPI on SG paralleled the results for KG and SI, with acute decline from 3.9 +/- 0.4 to 2.1 +/- 0.4 x 10(-2) min-1 (SAL vs. short EPI, P < 0.05) and recovery to 3.3 +/- 0.3 x 10(-2) min-1 during long EPI. During CORT infusion, KG tended to fall (SAL 2.9 +/- 0.4 vs. short CORT 2.5 +/- 0.5 vs. long CORT 2.2 +/- 0.5%/min).(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Diabetesjournal_title
Diabetesauthors
Sleeman MW,Christopher MJ,Martin IK,Ward GM,Alford FP,Best JDdoi
10.2337/diab.41.11.1446subject
Has Abstractpub_date
1992-11-01 00:00:00pages
1446-52issue
11eissn
0012-1797issn
1939-327Xjournal_volume
41pub_type
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