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Abstract
Repeatedly bred rats develop arteriosclerosis, hyperlipidemia, hyperglycemia and other
degenerative changes, spontaneously. An injection of alloxan given to non-arteriosclerotic
virgin and to arteriosclerotic and diabetic breeder rats caused severe ketosis, hyperglycemia,
hyperlipidemia, marked alterations in serum enzymes and alterations in adrenal secretory
activity. After two months, half of all of the diabetic animals were obese with little
or no arteriosclerosis, the remaining half were emaciated with severe arteriosclerosis.
This condition of obesity or emaciation persisted throughout the course of the experiment.
This dichotomous response was ascribed to differences in beta cell recovery from alloxan.
Treatment was deliberately withheld and the diabetes allowed to run unchecked until
the animals began to die in great numbers, i.e., only 52 animals survived of a total of 2000. After 5 months of unrelenting diabetes,
the severity of hyperglycemia lead become slightly reduced, adrenal function was definitely
compromised, hyperlipidemia persisted except for cholesterol, serum transaminases
(SGOT and SGPT) were greatly elevated but LDH was surprisingly reduced, and all subjects
were hypercalcemic. All of the animals were blind and most of the obese subjects expired
but the emaciated and arteriosclerotic animals survived. The formerly healthy virgin
subjects had also developed blindness and advanced arteriosclerosis during the 5 months
of unrelenting diabetes.
Keywords
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Article info
Publication history
Received:
December 24,
1970
Footnotes
☆This work was supported, in part, by grants from the Southwestern Ohio Heart Association, the National Heart Institute (HE-6315) and by a General Research Support Grant (RR 5633) from the National Institutes of Health.
Identification
Copyright
© 1971 Published by Elsevier Inc.