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- W91448194 abstract "This study investigated the feasibility of using a phosphorescence oxygen analyser to measure cellular respiration (mitochondrial O2 consumption) in foreskin samples and their fibroblast-rich cultures.Foreskin specimens from normal infants were collected immediately after circumcision and processed for measuring cellular respiration and for culture. Cellular mitochondrial O2 consumption was determined as a function of time from the phosphorescence decay of the Pd (II) meso-tetra-(4-sulfonatophenyl)-tetrabenzoporphyrin.In sealed vials containing a foreskin specimen and glucose, O2 concentration decreased linearly with time, confirming the zero-order kinetics of O2 consumption by cytochrome oxidase. Cyanide inhibited O2 consumption, confirming that the oxidation occurred mainly in the mitochondrial respiratory chain. The rate of foreskin respiration (mean ± SD) was 0.074 ± 0.02 μM O2 min(-1) mg(-1) (n = 23). The corresponding rate for fibroblast-rich cultures was 9.84 ± 2.43 μM O2 min(-1) per 10(7) cells (n = 15). Fibroblast respiration was significantly lower in a male infant with dihydrolipoamide dehydrogenase gene mutations, but normalised with the addition of thiamine or carnitine.The foreskin and its fibroblast-rich culture are suitable for assessment of cellular respiration. However, the clinical utility of foreskin specimens to detect disorders of impaired cellular bioenergetics requires further investigation." @default.
- W91448194 created "2016-06-24" @default.
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- W91448194 date "2013-08-01" @default.
- W91448194 modified "2023-09-26" @default.
- W91448194 title "Mitochondrial Oxygen Consumption by the Foreskin and its Fibroblast Rich Culture = إستهلاك الأوكسجين في المايتوكوندريا من قبل القلفة و الخلايا الليفية" @default.
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- W91448194 doi "https://doi.org/10.12816/0003264" @default.
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