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Item Metadata only Comparative studies on iron-ascorbate treated and vitamin E-deficient rabbit sarcoplasmic reticulum Ca2+-ATPase(Mahidol University. Mahidol University Library and Knowledge Center, 2024) Warawadee Nirdnoy; Prayad Komaratat; Prapon Wilairat; Pichit TosukhowongItem Metadata only Cardioprotection by exercise training in ovariectomized rat hearts : Restoration of changes in sarcoplasmic reticulum calcium-uptake function(Mahidol University. Mahidol University Library and Knowledge Center, 2006) Jitanan Laosiripisan; Jonggonnee WattanapermpoolPublication Metadata only Different states of sarcoplasmic reticulum membrane in the presence of acetyl phosphate and adenosine triphosphate(1977-09-01) Yongyuth Yuthavong; Pailin Ucchin; Rossukon Sari; Mahidol UniversityIn the presence of acetyl phosphate, approximately 0.8 extra sulphydryl groups/10 5 g protein of sarcoplasmic reticulum membrane vesicles are exposed to reaction with N-ethylmaleimide, whereas in the presence of ATP approximately 0.6 groups/10 5 g... protein are protected. Dithiobis (nitrobenzoic acid) reacts with the membrane sulphydryl groups more slowly in the presence of ATP than in the presence of acetyl phosphate or in the absence of substrate. Sarcoplasmic reticulum membrane is degradedItem Metadata only Sarcoplasmic reticulum calcium handling in unbranched, immediately post-necrotic fast-twitch mdx fibres is similar to wild-type littermates(2022-06-01) Chan S.; Kueh S.L.L.; Morley J.W.; Head S.I.; Mahidol UniversityNew Findings: What is the central question of this study? What are the early effects of dystrophin deficiency on sarcoplasmic reticulum Ca2+ handling in the mdx mouse? What is the main finding and its importance? In the mdx mouse, Ca2+ handling... by the sarcoplasmic reticulum is little affected by the absence of dystrophin when looking at fibres without branches that have recently regenerated after massive myonecrosis. This has important implications for our understanding of Ca2+ pathology in the mdx mousePublication Metadata only Protein and lipid composition of sarcoplasmic reticulum from dystrophic muscles of vitamin E-deficient rabbits(1980-01-01) P. Liewsaree; Y. Yuthavong; P. Wilairat; P. Komaratat; Mahidol UniversityThe protein and lipid compositions of sarcoplasmic reticulum (SR) membranes from vitamin E-deficient and control rabbits were analyzed. In vitamin E-deficient rabbits, sodium dodecyl-sulfate polyacrylamide gel-electrophoresis and sulfhydryl contentPublication Metadata only Regulatory role of ovarian sex hormones in calcium uptake activity of cardiac sarcoplasmic reticulum(2006-09-13) Tepmanas Bupha-Intr; Jonggonnee Wattanapermpool; Mahidol Universityintracellular Ca2+mobilization, the sarcoplasmic reticulum (SR) Ca2+uptake and SR Ca2+-ATPase (SERCA) activity were determined in 10-wk ovariectomized rat hearts. With the use of left ventricular homogenate preparations, a significant suppression of maximum SRPublication Metadata only Comparison of sarcoplasmic reticulum Ca2+-adenosine triphos-phatase from vitamin E-deficient dystrophic rabbit skeletal muscle with iron-ascorbate-treated and untreated enzyme(1988-01-01) Warawadee Nirdnoy; Prayad Komaratat; Prapon Wilairat; Mahidol UniversitySarcoplasmic reticulum Ca 2+ ATPase from rabbit skeletal muscle has an Arrhenius curve of enzyme activity with a discontinuity at about 20°C. Preparations treated with FeSO 4 and ascorbic acid and from a vitamin E-deficient dystrophic rabbit have 22Publication Metadata only Acute inhibitory effect of alpha-mangostin on sarcoplasmic reticulum calcium-ATPase and myocardial relaxation(2017-10-01) Sukanya Phungphong; Anusak Kijtawornrat; Pieter P. de Tombe; Jonggonnee Wattanapermpool; Tepmanas Bupha-Intr; Sunit Suksamrarn; Mahidol University; Chulalongkorn University; Loyola University Stritch School of Medicine; Srinakharinwirot Universitysarcoplasmic reticulum (SR) membrane preparation, α-mangostin inhibited SR Ca2+-ATPase activity in a dose-dependent manner (IC50of 6.47 ± 0.7 μM). Its suppressive effect was specific to SR Ca2+-ATPase but not to myofibrillar Ca2+-ATPase. Using isolatedPublication Metadata only Altered property of sarcoplasmic Ca-ATPase from vitamin E-deficient dystrophic rabbit is associated with the protein and not the lipid component(1983-01-01) K. Patipaporn; P. Wilairat; P. Komaratat; Mahidol UniversityThe effects of temperature on reconstituted sarcoplasmic Ca-ATPase preparations from vitamin E-deficient dystrophic and control rabbits were studied. Delipidated Ca-ATPase from vitamin E-deficient sarcoplasmic reticulum (SR) reconstituted with lipid... with lipid of vitamin E-deficient SR showed a reduction in activity by retained the discontinuity in the Arrhenius plot. These results indicated that the altered property of sarcoplasmic Ca-ATPase from vitamin E-deficient dystrophic rabbit was associatedPublication Metadata only Effects of vitamin E deficiency on the activities of lipid-requiring enzymes in rabbit liver and muscle(1979-12-01) C. Vajanamarhutue; P. Wilairat; P. Komaratat; Mahidol UniversityThe effects of vitamin E deficiency on membrane integrity were studied by examining the temperature dependence of membrane-bound enzyme activities in liver mitochondria and microsome and in muscle sarcoplasmic reticulum. In vitamin E-deficient... C reductase (EC 1.6.99.3) and sarcoplasmic reticulum Ca-ATPase were reduced in comparison to control rabbits. Arrhenius plots of activity against temperature yielded a linear plot over the range 10 to 40°C in the case of β-hydroxybutyrate
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