scholarly journals Antioxidant Defense and Lipid Peroxide Level in Liver and Kidneys of Lead Exposed Rats

2000 ◽  
Vol 13 (10) ◽  
pp. 1433-1439
Author(s):  
R. C. Patra ◽  
D. Swarup ◽  
S. K. Dwivedi
Keyword(s):  
Antioxidant Defense ◽  
Lipid Peroxide ◽  
Lipid Peroxide Level

Lipid peroxide level in plasma of diabetic patients

1979 ◽  
Vol 21 (1) ◽  
pp. 104-107 ◽  
Author(s):  
Yuzo Sato ◽  
Nigishi Hotta ◽  
Nobuo Sakamoto ◽  
Shigeru Matsuoka ◽  
Nobuko Ohishi ◽  
...  
Keyword(s):  
Lipid Peroxide ◽  
Diabetic Patients ◽  
Lipid Peroxide Level

Effect of pre-exposure to beta rays of tritium on some biochemical parameters measured in organs of rats subsequently irradiated with fast neutrons

2002 ◽  
Vol 80 (7) ◽  
pp. 742-749 ◽  
Author(s):  
Ileana Petcu ◽  
Nicoleta Moisoi ◽  
Diana Savu ◽  
B Constantinescu
Keyword(s):  
Bone Marrow ◽  
Small Intestine ◽  
Protective Effect ◽  
Bone Marrow Cells ◽  
Lipid Peroxide ◽  
Lipid Peroxides ◽  
Fast Neutrons ◽  
Thymidine Uptake ◽  
Lipid Peroxide Level

The experiment examined biological responses produced by combined sequential exposure to low-level tritium contamination, followed by challenging irradiation with fast neutrons. Modifications of endogenous antioxidant potential of different organs in rats were discussed in relation to tissue radiosensitivity. Rats pre-contaminated to 7 cGy and 35 cGy have been additionally irradiated to 1 Gy with fast neutrons. Lipid peroxide level was determined in liver, kidney, small intestine, spleen, bone marrow, and plasma. Reduced glutathione (GSH) level and glucose-6-phosphate dehydrogenase (G6PDH) activity were determined in erythrocytes. An in vitro thymidine uptake assay was performed in isolated bone marrow cells. The lipid peroxide level decreased significantly only in liver and kidney from rats pre-exposed to 35 cGy. For small intestine and spleen, tissues of comparatively higher radiosensitivity, no induced radioprotection was observed, as reflected in the homeostasis of the lipid peroxides. The same behavior was observed in bone marrow, the most radiosensitive tissue studied. However, the bone marrow thymidine-incorporation assay revealed a possible adaptive-type reaction in rats pre-exposed to 35 cGy. We conclude that for radiosensitive tissues pre-exposure to chronic low doses of low linear energy transfer (LET) irradiation has no protective effect on their antioxidant status, whereas a protective effect is observed in radioresistent tissues.Key words: induced radioprotection, tritium contamination, lipid peroxides, thymidine uptake, tissue radiosensitivity, antioxidant defense.

scholarly journals Effects of acute hypoxia on the energy status and antioxidant defense system in the blood of carp - Cyprinvs carpio L.

2002 ◽  
Vol 54 (1-2) ◽  
pp. 11-18
Author(s):  
Radoslav Zikic ◽  
Andras Stajn ◽  
Sladjan Pavlovic ◽  
Branka Ognjanovic ◽  
Snezana Maletic ◽  
...  
Keyword(s):  
Antioxidant Defense ◽  
Reduced Glutathione ◽  
Acute Hypoxia ◽  
Lipid Peroxide ◽  
Antioxidant Defense System ◽  
Energy Status ◽  
Glutathione S Transferase ◽  
Short Term ◽  
Hypoxic Conditions

The influence of acute hypoxia on glucose, pyruvate, lipid peroxide (LP) reduced glutathione (GSH) concentrations and lactate level in the whole blood of carp (Cyprinus carpio L) under aquarium conditions were studied. The activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), the concentrations of ATP and ADP and ATP/ADP ratio in the red blood cells (RBCs) were analyzed. Glutathione-S-transferase (GST) activity was determined in the plasma. Our experiments showed that short-term and long-term hypoxia causes significant changes of all examined haema-tological parameters. Increased concentration of LP and increased SOD CAT and GST activities, as well as a decreased GSH-Px activity showed that under hypoxic conditions oxidative stress and RBCs damage were produced.

Effects of a 50 Hz electric field on plasma lipid peroxide level and antioxidant activity in rats

2005 ◽  
Vol 26 (7) ◽  
pp. 589-594 ◽  
Author(s):  
Shinji Harakawa ◽  
Noboru Inoue ◽  
Takuya Hori ◽  
Koji Tochio ◽  
Tatsuya Kariya ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Electric Field ◽  
Plasma Lipid ◽  
Lipid Peroxide ◽  
Lipid Peroxide Level ◽  
Plasma Lipid Peroxide
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