VOPROSY MEDITSINSKOI KHIMII (ISSN 0042-8809)

The effect of hypoxia on membrane status and lipid peroxidation in rat lungs and blood

   
Mogil'nitskaia L.V., Prokof'ev V.N., An Fan, Zhogolev V.V.
PubMed Id: 8303870
Year: 1993  Volume: 39  Issue: 6  Pages: 34-36
A state of lysosomal membranes and lipid peroxidation were studied in rat lungs under hypoxic conditions at the height 9,000 m, 3 hrs. Under these condition content of protein in lungs was decreased by 12% but free activity of lysosomal peptide hydrolases was simultaneously increased by 66%, indicating the lysosomal membranes labilization. At the same time, content of lipid peroxidation products--diene conjugates and Schiff bases, was decreased in lung synchronously with activation of the antioxidant enzymes catalase and superoxide anion dismutase. The lung tissue appears to have more powerful mechanisms of adaptation to deficiency of oxygen as compared with other tissues. Under hypoxic conditions content of protein in blood serum was similar to that of control values, while activity of lysosomal enzymes was increased by 26%, which occurred apparently due to an increase in the rate of lipid peroxidation. Actually, amount of lipid peroxidation products was increased in erythrocyte membranes but activity of SOD was not altered and the activity of catalase--tended to decrease. Thus, one of possible reasons of lipid peroxidation product accumulation in blood may be a lowered activity of the antioxidative enzymes.
Download PDF:  
Citation:

Mogil'nitskaia, L. V., Prokof'ev, V. N., An, Fan,, Zhogolev, V. V. (1993). The effect of hypoxia on membrane status and lipid peroxidation in rat lungs and blood. Voprosy Meditsinskoi Khimii, 39(6), 34-36.
References
 2002 (vol 48)
 2001 (vol 47)
 2000 (vol 46)
 1999 (vol 45)
 1998 (vol 44)
 1997 (vol 43)
 1996 (vol 42)
 1995 (vol 41)
 1994 (vol 40)
 1993 (vol 39)
 1992 (vol 38)
 1991 (vol 37)
 1990 (vol 36)
 1989 (vol 35)
 1988 (vol 34)
 1987 (vol 33)
 1986 (vol 32)
 1985 (vol 31)
◄        ►