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Comparative Study
. 1985 May;10(5):703-11.
doi: 10.1007/BF00964408.

Glutathione peroxidase activity in surgical and autopsied human brains

K A Ansari, D Bigelow, E Kaplan
Comparative Study

Glutathione peroxidase activity in surgical and autopsied human brains

K A Ansari et al. Neurochem Res. 1985 May.

Abstract

Glutathione peroxidase (GSHPx) activity was assayed in normal cerebral gray and white matter samples obtained from frontal, temporal, occipital and parietal lobes during surgical approach to an underlying lesion, and also in normal autopsied human frontal gray and white matter. GSHPx was assayed by a 2 step enzyme reaction which was monitored by following the oxidation of NADPH at 340 nm. It was found that all the brain samples studied contained GSHPx activity. Parietal lobe appeared to have the lowest GSHPx activity compared to temporal, occipital or frontal lobes. Mean enzyme activity in autopsied samples was comparable to that in surgical material. However, considerable loss of activity was observed after 10 years of tissue storage at -80 degrees C.

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