Studies on metabolism of lung fluke genus Paragonimus. VII. Action of bithionol on glycolytic and oxidative metabolism of adult worms |
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Authors: | F Hamajima |
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Institution: | Department of Parasitology, Faculty of Medicine, Kyushu University, Fukuoka, Japan |
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Abstract: | The present study was carried out in order to obtain information on the mechanism of action of bithionol on Paragonimus westermani (Kerbert 1878). Bithionol stimulated lactic acid production of intact adult worms above the level of the control worms, while it inhibited oxygen consumption of intact adult worms in vitro. Bithionol treatment of adult worms in vivo decreased glycolytic and oxidative metabolism of homogenates of uterine eggs and adult worms.Bithionol inhibited lactic acid formation except when fructose 1, 6-diphosphate (FDP) was used as a substrate in the homogenates of adult worms, and it also inhibited oxygen consumption of homogenates of eggs and adult worms. Bithionol inhibited reduction of methylene blue when succinate was used as a substrate. Bithionol inhibited oxidation of reduced cytochrome c in the 1000g supernatant of homogenates of adult worms. Bithionol inhibited activity of the succinate oxidation in homogenates of adult worms. |
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Keywords: | Bithionol Enzymes Lactic acid Oxygen consumption methylene blue reduction Metabolism Glycolysis Tricarboxylic acid cycle Succinate oxidation Inhibition |
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