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Effect of Bio-tea on the ultrastructure of the heart in MI rats. (A) Heart of normal control rat. Note the compact mitochondria and muscle fibers. (B) Heart of rat with ISO-induced MI. Note the swollen mitochondria and disrupted cristae. (C) Heart of black tea pretreated rat with mildly swollen mitochondria and reduced separation of cristae. (D) Heart of Bio-tea pretreated rat with near normal architecture of mitochondria. Scale bar 1 μm. ISO = isoprenaline; M = mitochondria.
