Results 271 to 280 of about 264,687 (311)
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Journal of Bioenergetics and Biomembranes, 1977
The mitochondria isolated from the muscles of fish acclimated to grow in different salinities have been studied with reference to their Ca2+ uptake capacity and compared to those isolated from fresh-water fish muscle. The results show a drastic response by the mitochondria with reference to their Ca2+ uptake function soon after exposure to the stress ...
H R, Sulochana +3 more
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The mitochondria isolated from the muscles of fish acclimated to grow in different salinities have been studied with reference to their Ca2+ uptake capacity and compared to those isolated from fresh-water fish muscle. The results show a drastic response by the mitochondria with reference to their Ca2+ uptake function soon after exposure to the stress ...
H R, Sulochana +3 more
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Glutaminase activity in rat skeletal muscle mitochondria
Experientia, 1978Isolated rat skeletal muscle mitochondria took up about 40-ng-atoms O per mg protein, with glutamine as the only respiratory substrate. The mitochondria incubated in the presence of glutamine and KCN formed both ammonia and glutamate in equivalent amounts.
J, Swierczyński, W, Makarewicz
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Unusual mitochondria in human skeletal muscle
Experientia, 1975Bei elektronenmikroskopischen Untersuchungen an Muskelbiopsien von Kranken mit progressiver Sklerodermie konnten in einem Fall ungewohnlich viele, grosstenteils kugelige Mitochondrien mit einem Durchmesser von 0,03–0,05 μm subsarkolemmal beobachtet werden. Zwischen diesen befanden sich zahlreiche stabchenformige Mitochodnrien mit einer Lange von 1–3 μm
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Human quadricepts muscle mitochondria: A functional characterization
Molecular and Cellular Biochemistry, 2000Human quadriceps mitochondria were isolated from ca. 80 mg tissue in ca. 45% yield. The preparation is described with respect to content of mitochondrial markers and nine different respiratory activities. The specific state 3 activities were high in comparison with literature data, indicating high integrity and purity of the preparation.
Rasmussen, Ulla Fugmann +1 more
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The oxidase systems of Ascaris-muscle mitochondria
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1970Abstract 1. The oxidase systems of Ascaris-muscle mitochondria were investigated by polarographic and spectroscopic techniques. 2. Spectrophotometric studies at −196° revealed that Ascaris-muscle mitochondria contained low levels of substrate-reducible a-, b- and c-type cytochromes.
K S, Cheah, B, Chance
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Giant Mitochondria in Human Muscle With Inclusions
Archives of Neurology, 1967RECENTLY, two reports have been published on myopathies characterized primarily by abnormalities of mitochondria. In the first, Luft et al1described a severely hypermetabolic patient with loosely coupled oxidative phosphorylation in mitochondria and, in the second, Shy et al2described pleoconial and megaconial conditions, both related to aberrent ...
S A, Shafiq, A T, Milhorat, M A, Gorycki
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Histopathology of Skeletal Muscle Mitochondria
1999The muscle biopsy can often be one of the most decisive steps in the diagnosis of several mitochondrial diseases, even when the patients do not exhibit any apparent clinical symptom of muscular involvement. The technique is particularly efficient in the case of respiratory chain deficiencies.
N. B. Romero, M. Coquet, H. Carrier
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Mitochondria in Muscle and Exercise
2017This chapter will discuss the role of mitochondria in muscle, particularly the effect of acute and chronic exercise. The focus will be on human studies. A general overview of mitochondrial structure and function will be followed by a discussion of the diverse techniques used to measure mitochondrial function.
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Adenosine triphosphatase activity in Ascaris muscle mitochondria
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1974Abstract 1. 1. Mitochondria isolated from Ascaris suum muscle present a low molecular content of membrane bound adenosine triphosphatase and of mitochondrial inhibitor. They catalyse a low 32Pi-ATP exchange reaction. 2. 2. The sequential exposure of intact mitochondria to sonic oscillatioins (SMP), Sephadex (S-particles) and urea (SU ...
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Muscle Mitochondria and Malignant Hyperthermia
1996Malignant hyperthermia (MH) is a genetically inherited potentially fatal disorder affecting primarily the skeletal muscle of humans, stress-susceptible pigs, and, to a lesser extent, dogs. In MH-susceptible humans and animals, it is generally accepted that an increase in the level of myoplasmic free Ca2+ is the initiator of the syndrome [1–5].
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