Key result
STZ-induced diabetic dogs exhibited decreased sarcoplasmic reticulum Ca2+ content due to enhanced spontaneous Ca2+ leakage and reduced ryanodine receptor numbers compared to normal dogs.
STZ-induced diabetic dog models exhibit cardiac sarcoplasmic reticulum dysfunction characterized by decreased Ca2+ content and reduced ryanodine receptors.
Hypothesis-generating for SR Ca²⁺ leak in diabetic cardiomyopathy; leaves open clinical translation to human arrhythmias or HF.
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Imanage et al. (1997) studied STZ-induced diabetes. STZ-induced diabetes vs. Normal dogs was evaluated on Sarcoplasmic reticulum function. STZ-induced diabetic dogs exhibited decreased sarcoplasmic reticulum Ca2+ content due to enhanced spontaneous Ca2+ leakage and reduced ryanodine receptor numbers compared to normal dogs.
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