[The effect of emotional-painful stress, hypoxia, and adaptation to it on the activity of enzymes for metabolizing glutathione and concentration of glutathione in rat organs].

Autor: Kolesnichenko LS, Kulinskiĭ VI, Ias'ko MV, Ekimov EN, Stanevich LM, Glushkova EF, Belogorov SB, Filippova GT
Jazyk: ruština
Zdroj: Voprosy meditsinskoi khimii [Vopr Med Khim] 1994 Sep-Oct; Vol. 40 (5), pp. 10-2.
Abstrakt: The stress activates glutathione peroxidase in the heart, liver, and kidney, glutathione transferase in the heart and liver, inhibits gamma-glutamyl transferase in the liver; the activity of glutathione reductase and the content of reduced glutathione were unchanged. Two-four-minute hypercapnic hypoxia unchanged the activity of glutathione metabolic enzymes. The activity of the above enzymes decreases in some organs at the death caused by 2-15-minute hypoxia. Long-term intermittent adaptation to hypobaric hypoxia lowers the activity of glutathione peroxidase, -transferase and -reductase. The biological value of the two types of enzymatic responses may be different: stress-induced activation of glutathione metabolic enzymes can enhance resistance to stress and xenobiotics; however, their inhibition during hypoxic adaptation may produce the opposite effect.
Databáze: MEDLINE