Abstract
Equal volumes of teleost fish (tilapia), Lewis rat, or CD-1 mouse islets were transplanted under the kidney capsules of streptozotocin-diabetic athymic nude mice. Nonfasting blood glucose levels were monitored in recipient mice over a period of 30 days. Mean nonfasting blood glucose levels in recipients of tilapia (n=7), rat (n=8), and murine (n=8) islets were 78.8, 77.0, and 115 mg/dl, respectively. Mean blood glucose levels were significantly higher in recipients of murine islets than in recipients of fish and rat islets. After Day 30, intraperitoneal glucose tolerance tests were performed on recipient mice. Mean fasted blood glucose levels in mouse, rat, and fish islet recipients were 113.3, 89.8, and 72.7 mg/dl, respectively. All three groups of recipient mice had similar glucose tolerance profiles with mean glucose disappearance rates (Kvalues) between 4.3 and 5.7. Tilapia islet grafts resulted in a significantly lower baseline for blood glucose values than either rat or mouse islet grafts.
Published Version
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