Abstract
The amounts of succinyl-CoA--3-oxo acid CoA-transferase (EC 2.8.3.5) decrease progressively in skeletal muscle in streptozotocin-diabetic rats, reaching after 10 days about 50% of the value in normal rat muscle. Electrofocusing studies indicate the occurrence of partial proteolysis of the enzyme in diabetic muscle. However, several functional parameters relating to acetoacetate utilization, including substrate inhibition, are quite similar for muscle transferase preparations from normal and diseased rats. The development of pathological ketoacidosis is discussed in the light of these observations.
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- BEATTY C. H., MARCO A., PETERSON R. D., BOCEK R. M., WEST E. S. Acetoacetic acid metabolism by skeletal muscle fibers from control and diabetic rats. J Biol Chem. 1960 Oct;235:2774–2777. [PubMed] [Google Scholar]
- Balasse E. O., Havel R. J. Evidence for an effect of inulin on the peripheral utilization of ketone bodies in dogs. J Clin Invest. 1971 Apr;50(4):801–813. doi: 10.1172/JCI106551. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bates M. W. Effects of hydroxybutyrate infusion and insulin injection on ketone body turnover of rats. Am J Physiol. 1972 Feb;222(2):462–467. doi: 10.1152/ajplegacy.1972.222.2.462. [DOI] [PubMed] [Google Scholar]
- Fenselau A., Wallis K. Comparative studies on 3-oxo acid coenzyme A transferase from various rat tissues. Biochem J. 1974 Sep;142(3):619–627. doi: 10.1042/bj1420619. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fenselau A., Wallis K. Ketone body usage by mammals. Acetoacetate substrate inhibition of CoA transferase from various rat tissues. Life Sci. 1974 Aug 15;15(4):811–818. doi: 10.1016/0024-3205(74)90519-0. [DOI] [PubMed] [Google Scholar]
- Fenselau A., Wallis K., Morris H. P. Acetoacetate coenzyme A transferase activity in rat hepatomas. Cancer Res. 1975 Sep;35(9):2315–2320. [PubMed] [Google Scholar]
- Fenselau A., Wallis K. Substrate specificity and mechanism of action of acetoacetate coenzyme A transferase from rat heart. Biochemistry. 1974 Sep 10;13(19):3884–3888. doi: 10.1021/bi00716a010. [DOI] [PubMed] [Google Scholar]
- Hawkins R. A., Alberti K. G., Houghton C. R., Williamson D. H., Krebs H. A. The effect of acetoacetate on plasma insulin concentration. Biochem J. 1971 Nov;125(2):541–544. doi: 10.1042/bj1250541. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Junod A., Lambert A. E., Stauffacher W., Renold A. E. Diabetogenic action of streptozotocin: relationship of dose to metabolic response. J Clin Invest. 1969 Nov;48(11):2129–2139. doi: 10.1172/JCI106180. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Klingenberg M. Metabolite transport in mitochondria: an example for intracellular membrane function. Essays Biochem. 1970;6:119–159. [PubMed] [Google Scholar]
- LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
- MADISON L. L., MEBANE D., UNGER R. H., LOCHNER A. THE HYPOGLYCEMIC ACTION OF KETONES. II. EVIDENCE FOR A STIMULATORY FEEDBACK OF KETONES ON THE PANCREATIC BETA CELLS. J Clin Invest. 1964 Mar;43:408–415. doi: 10.1172/JCI104925. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Malaisse W. J., Malaisse-Lagae F. Stimulation of insulin secretion by noncarbohydrate metabolites. J Lab Clin Med. 1968 Sep;72(3):438–448. [PubMed] [Google Scholar]
- Max S. R., Garbus J., Wehman H. J. Simple procedure for rapid isolation of functionally intact mitochondria from human and rat skeletal muscle. Anal Biochem. 1972 Apr;46(2):576–584. doi: 10.1016/0003-2697(72)90328-4. [DOI] [PubMed] [Google Scholar]
- Mowbray J. A mitochondrial monocarboxylate transporter in rat liver and heart and its possible function in cell control. Biochem J. 1975 Apr;148(1):41–47. doi: 10.1042/bj1480041. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Paradies G., Papa S. The transport of monocarboxylic oxoacids in rat liver mitochondria. FEBS Lett. 1975 Mar 15;52(1):149–152. doi: 10.1016/0014-5793(75)80659-4. [DOI] [PubMed] [Google Scholar]
- Ruderman N. B., Goodman M. N. Inhibition of muscle acetoacetate utilization during diabetic ketoacidosis. Am J Physiol. 1974 Jan;226(1):136–143. doi: 10.1152/ajplegacy.1974.226.1.136. [DOI] [PubMed] [Google Scholar]
- WILLIAMSON D. H., MELLANBY J., KREBS H. A. Enzymic determination of D(-)-beta-hydroxybutyric acid and acetoacetic acid in blood. Biochem J. 1962 Jan;82:90–96. doi: 10.1042/bj0820090. [DOI] [PMC free article] [PubMed] [Google Scholar]