Biochemical Lesion of Diphtheria Toxin in the Heart*

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This research aims to evaluate how diphtheria toxin affects fatty acid oxidation and myocardial integrity in heart muscle.
Guinea pigs weighing 250-300 g were divided into four groups for experimentation.
One group received subcutaneous injections of diphtheria toxin to induce fatty degeneration in the myocardium.
Another group was administered diphtheria antitoxin to assess its effect against the toxin.
Diphtheria toxin caused regular fatty degeneration in the myocardium within 5 days post-treatment.
The study observed impaired capacity for long-chain fatty acid oxidation due to the toxin's influence.
Myocardial carnitine levels were measured to evaluate their relationship with fatty acid oxidation pathways.

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Investigates diphtheria toxin's impact on heart's fatty acid oxidation in guinea pigs, suggesting metabolic disruption.

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Wittels et al. (1964) studied this question.

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