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Acute effects of resistance exercise and intermittent intense aerobic exercise on blood cell count and oxidative stress in trained middle-aged women BJMBR
Cardoso,A.M.; Bagatini,M.D.; Roth,M.A.; Martins,C.C.; Rezer,J.F.P.; Mello,F.F.; Lopes,L.F.D.; Morsch,V.M.; Schetinger,M.R.C..
The aim of this study was to compare the effect of an intermittent intense aerobic exercise session and a resistance exercise session on blood cell counts and oxidative stress parameters in middle-aged women. Thirty-four women were selected and divided into three groups: RE group (performing 60 min of resistance exercises, N = 12), spinning group (performing 60 min of spinning, N = 12), and control group (not exercising regularly, N = 10). In both exercise groups, lymphocytes and monocytes decreased after 1-h recuperation (post-exercise) compared to immediately after exercise (P < 0.05). Immediately after exercise, in both exercised groups, a significant increase in TBARS (from 16.5 ± 2 to 25 ± 2 for the spinning group and from 18.6 ± 1 to 28.2 ± 3 nmol...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Intermittent exercise; Anaerobic exercise; Oxidative stress; Immune suppression; Middle-aged women.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001200010
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Brain ischemia alters platelet ATP diphosphohydrolase and 5'-nucleotidase activities in naive and preconditioned rats BJMBR
Frassetto,S.S.; Schetinger,M.R.C.; Schierholt,R.; Webber,A.; Bonan,C.D.; Wyse,A.T.; Dias,R.D.; Netto,C.A.; Sarkis,J.J.F..
The effects of transient forebrain ischemia, reperfusion and ischemic preconditioning on rat blood platelet ATP diphosphohydrolase and 5'-nucleotidase activities were evaluated. Adult Wistar rats were submitted to 2 or 10 min of single ischemic episodes, or to 10 min of ischemia 1 day after a 2-min ischemic episode (ischemic preconditioning) by the four-vessel occlusion method. Rats submitted to single ischemic insults were reperfused for 60 min and for 1, 2, 5, 10 and 30 days after ischemia; preconditioned rats were reperfused for 60 min 1 and 2 days after the long ischemic episode. Brain ischemia (2 or 10 min) inhibited ATP and ADP hydrolysis by platelet ATP diphosphohydrolase. On the other hand, AMP hydrolysis by 5'-nucleotidase was increased after 2,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brain ischemia; Ischemic preconditioning; Rat platelets; ATP diphosphohydrolase; 5'-nucleotidase.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001100017
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Effects of aluminum sulfate on delta-aminolevulinate dehydratase from kidney, brain, and liver of adult mice BJMBR
Schetinger,M.R.C.; Bonan,C.D.; Morsch,V.M.; Bohrer,D.; Valentim,L.M.; Rodrigues,S.R..
The purpose of the present study was to investigate the in vitro and in vivo effects of aluminum sulfate on delta-aminolevulinic acid dehydratase (ALA-D) activity from the brain, liver and kidney of adult mice (Swiss albine). In vitro experiments showed that the aluminum sulfate concentration needed to inhibit the enzyme activity was 1.0-5.0 mM (N = 3) in brain, 4.0-5.0 mM (N = 3) in liver and 0.0-5.0 mM (N = 3) in kidney. The in vivo experiments were performed on three groups for one month: 1) control animals (N = 8); 2) animals treated with 1 g% (34 mM) sodium citrate (N = 8) and 3) animals treated with 1 g% (34 mM) sodium citrate plus 3.3 g% (49.5 mM) aluminum sulfate (N = 8). Exposure to aluminum sulfate in drinking water inhibited ALA-D activity in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aluminum sulfate; Aluminum determination; Delta-aminolevulinate dehydratase.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000600012
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Ischemic preconditioning reduces peripheral oxidative damage associated with brain ischemia in rats BJMBR
Frassetto,S.S.; Schetinger,M.R.C.; Webber,A.; Sarkis,J.J.F.; Netto,C.A..
Brain ischemia followed by reperfusion causes neuronal death related to oxidative damage. Furthermore, it has been reported that subjects suffering from ischemic cerebrovascular disorders exhibit changes in circulating platelet aggregation, a characteristic that might be important for their clinical outcome. In the present investigation we studied tert-butyl hydroperoxide-initiated plasma chemiluminescence and thiol content as measures of peripheral oxidative damage in naive and preconditioned rats submitted to forebrain ischemia produced by the 4-vessel occlusion method. Rats were submitted to 2 or 10 min of global transient forebrain ischemia followed by 60 min or 1, 2, 5, 10 or 30 days of reperfusion. Preconditioned rats were submitted to a 10-min...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brain ischemia; Ischemic preconditioning; Oxidative damage; Hydroperoxide-initiated chemiluminescence; Plasma thiols.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001000017
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