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1.
Artigo | IMSEAR | ID: sea-203757

RESUMO

Background: Reactive oxygen species (ROS) may cause extensive tissue damages in various disease conditions.It may also induce an irreversible structural and/or functional modification of proteins. Flavonoids and theirderivatives are the largest group in plant polyphenols that are known to have an antioxidant effect. The aim ofthe present study is to evaluate the antioxidant effects of red or white cabbage on bovine serum albumin (BSA).Methods: Fresh leaves of red or white cabbage were washed with distilled water, and sliced into small pieces.Finally, the pieces were dried and extracted with 80% ethanol overnight. The antioxidant activity of cabbageextracts were studied by ferric reducing antioxidant power (FRAP) and H2O2 scavenging assays. Statisticalanalysis: Statistical significances were analyzed by one-way analysis of variance (ANOVA) by using software Rversion 2.8.1 (R Development Core Team, 2008). Significant differences (p < 0.05) are denoted by differentletters. Results: Red and white cabbage extract showed a pronounced antioxidant activity. White cabbageexhibited a highest antioxidant activities compared to red cabbage extract. Conclusion: Both red and whitecabbages have a high antioxidant effects. White cabbage extract had higher antioxidant activity than red cabbageextract.

2.
Artigo | IMSEAR | ID: sea-210578

RESUMO

Diabetic complications caused by hyperglycemia and oxidative stress, which can activate p38 mitogen-activatedprotein kinase (p38 MAPK), and aggravate complications via the enhancement of reactive oxygen species (ROS)generation. Recently, metformin or p38 MAPK inhibitors could reduce ROS production in particularly proteincarbonylation, in diabetic vessel. However, the combinatorial effect of metformin and SB203580 on internal organoxidative stress in non-obese (lean) type 2 diabetes mellitus (T2DM) is still uncleared. In this study, Goto-Kakizakirats were divided into four groups, including control diabetic group, metformin-treated group, p38 MAPK inhibitor(SB203580)-treated group, and combination between metformin and p38 MAPK inhibitor (SB203580). Internal organprotein from kidney, pancreas, liver, and brain was determined for protein carbonyl (PC) content by spectrophotometric2, 4-Dinitrophenylhydrazine assay. There was an increase in PC content levels in the serum and internal organs ofT2DM. Metformin ameliorated PC content in serum and internal organs. However, SB203580 could only reduce thePC content in the liver. The combination of metformin and SB203580 could synergistically reduce the PC contentlevels in serum but not the internal organs. In summary, metformin provided the greatest potential for reducingoxidative stress, while SB203580 or combined metformin with SB203580 could not reduce oxidative stress in theinternal organs of non-obese type 2 diabetic rats.

3.
Indian J Exp Biol ; 2015 May; 53(5): 281-291
Artigo em Inglês | IMSEAR | ID: sea-158449

RESUMO

Liver toxicity due to iron overload leads to oxidative damage of proteins, lipids and nucleic acids which in turn manifests several human diseases. Here, we evaluated the improving effect of Clerodendrum colebrookianum leaf on iron overload induced liver injury along with in vitro iron chelation and the protection of Fenton reaction induced DNA damage was conducted. Iron overload was induced by intraperitoneal administration of iron-dextran into mice. Post oral administration of different doses of the extract (50, 100 and 200 mg/kg body weight) showed significant decrease in different biochemical markers such as liver iron, serum ferritin and serum enzyme levels, along with decreased lipid peroxidation, protein oxidation and collagen content. In addition, the extract effectively enhanced the antioxidant enzyme levels and also exhibited the potential activity of the reductive release of ferritin iron. The protective effect of C. colebrookianum extract on injured liver was furthermore supported by the histopathological studies that showed improvement histologically. In conclusion, the present results demonstrated the hepatoprotective efficiency of C. colebrookianum leaf in iron overloaded mice, and hence, a potential iron chelating drug for iron overload diseases.


Assuntos
Animais , Antioxidantes , Clerodendrum , Ferro/efeitos adversos , Ferro/toxicidade , Sobrecarga de Ferro , Fígado/toxicidade , Camundongos , Estresse Oxidativo , Extratos Vegetais/uso terapêutico
4.
Neotrop. ichthyol ; 13(1): 229-236, Jan-Mar/2015. tab, graf
Artigo em Inglês | LILACS | ID: lil-744502

RESUMO

Rhamdia quelen (silver catfish) and Leporinus obtusidens (piava) were exposed to a commercial formulation Roundup(r), a glyphosate-based herbicide at concentrations of 0.2 or 0.4 mg/L for 96 h. The effects of the herbicide were analyzed on the alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities and glucose in plasma, glucose and protein in the mucus layer, nucleotide hydrolysis in the brain, and protein carbonyl in the liver. The parameters were chosen, owing to a lack of information concerning integrated analysis, considering oxidative damage parameters, liver damage, and effects on the mucus layer composition and triphosphate diphosphohydrolase (NTPDase) activities. Plasmatic glucose levels were reduced in both species, whereas the transaminase activities (ALT and AST) increased after exposure to the herbicide. Herbicide exposure increased protein and glucose levels in the mucus layer in both species. There was a reduction in both NTPDase and ecto-5'-nucleotidase activity in the brain of piava, and increased enzyme activity in silver catfish at both concentrations tested. The species showed an increase in protein carbonyl in the liver after exposure to both concentrations of the glyphosate. Our results demonstrated that exposure to Roundup(r) caused liver damage, as evidenced by increased plasma transaminases and liver protein carbonyl in both of the fish species studied. The mucus composition changed and hypoglycemia was detected after Roundup(r) exposure in both species. Brain nucleotide hydrolysis showed a different response for each fish species studied. These parameters indicated some important and potential indicators of glyphosate contamination in aquatic ecosystems.


Rhamdia quelen (jundiá) e Leporinus obtusidens (piava) foram expostos a formulação comercial Roundup(r), um herbicida a base de glifosato nas concentrações de 0,2 e 0,4 mg/L por 96h. Os efeitos do herbicida foram analisados na atividade da alanina aminotransferase (ALT), aspartato aminotransferase (AST) e glicose no plasma, glicose e proteína na camada de muco, hidrólise de nucleotídeos no cérebro e a proteína carbonil no fígado. Os parâmetros foram escolhidos devido à falta de informação com relação a análises integradas, considerando parâmetros oxidativo, danos no fígado, efeitos na composição da camada do muco e atividade da trifosfato difosfoidrolase (NTPDase). Níveis de glicose plasmática foram reduzidos em ambas às espécies, enquanto a atividade das transaminases (ALT e AST) aumentou após exposição ao herbicida. A exposição ao herbicida aumentou a proteína e níveis de glicose na camada de muco em ambas as espécies. Houve uma redução em ambas atividades de NTPDase e ecto-5'-nucleotidase no cérebro de piava, e um aumentou a atividade destas enzimas em jundiás em ambas as concentrações testadas. As espécies mostraram um aumento na proteína carbonil no fígado após exposição a ambas as concentrações de glifosato. Nossos resultados demonstraram que a exposição ao Roundup(r) causou danos no fígado, como evidenciado pelo aumento das transaminases plasmáticas e proteína carbonil no fígado em ambas as espécies de peixes estudadas. A composição do muco alterou e uma hipoglicemia foi detectada após a exposição ao Roundup(r) em ambas espécies. A hidrólise de nucleotídeos em cérebro mostrou diferente resposta para cada espécie estudada. Esses parâmetros indicam alguns importantes e indicadores potenciais da contaminação do glifosato no ecossistema aquático.


Assuntos
Animais , Caraciformes/sangue , Herbicidas/efeitos adversos , Poluição da Água/análise , Análise Química do Sangue/veterinária
5.
Nutrition Research and Practice ; : 430-438, 2013.
Artigo em Inglês | WPRIM | ID: wpr-181574

RESUMO

Increased oxidative stress in obese diabetes may have causal effects on diabetic complications, including dyslipidemia. Lipopolysccharides (LPS) along with an atherogenic diet have been found to increase oxidative stress and insulin resistance. Cranberry has been recognized as having beneficial effects on diseases related to oxidative stress. Therefore, we employed obese diabetic animals treated with an atherogenic diet and LPS, with the aim of examining the effects of cranberry powder (CP) on diabetic related metabolic conditions, including lipid profiles, serum insulin and glucose, and biomarkers of oxidative stress. Forty C57BL/KsJ-db/db mice were divided into the following five groups: normal diet + saline, atherogenic diet + saline, atherogenic diet + LPS, atherogenic diet + 5% CP + LPS, and atherogenic diet + 10% CP + LPS. Consumption of an atherogenic diet resulted in elevation of serum total cholesterol and atherogenic index (AI) and reduction of high density lipoprotein (HDL)-cholesterol. However, with 10% CP, the increase in mean HDL-cholesterol level was close to that of the group with a normal diet, whereas AI was maintained at a higher level than that of the group with a normal diet. LPS induced elevated serum insulin level was lowered by greater than 60% with CP (P 0.05). Mean activity of liver cytosolic glutathione peroxidase was significantly increased by LPS injection, however it was reduced back to the value without LPS when the diet was fortified with 10% CP (P 0.05). Overall results suggest that fortification of the atherogenic diet with CP may have potential health benefits for obese diabetes with high oxidative stress, by modulation of physical conditions, including some biomarkers of oxidative stress.


Assuntos
Animais , Camundongos , Biomarcadores , Glicemia , Colesterol , Citosol , Complicações do Diabetes , Dieta , Dieta Aterogênica , Dislipidemias , Glucose , Glutationa Peroxidase , Insulina , Resistência à Insulina , Benefícios do Seguro , Lipoproteínas , Fígado , Estresse Oxidativo , Vaccinium macrocarpon
6.
Artigo em Inglês | IMSEAR | ID: sea-151008

RESUMO

Protein carbonyl content assay was conducted among eight groups of animals treated with lead, alcohol and vitamin E in individuals and in combination at two, four and eight weeks of duration. In two weeks of treatment, lead treated rats recorded 2.45 nmol/grams. In alcohol treated rats, it was recorded 2.60 nmol/gram of protein carbonyl content in liver tissue. Compared to control, it was recorded 2.01 nmol/gram. In vitamin E treated with lead and alcohol, protein carbonyl content was recorded 3.02 nmol/gram of tissue. In four weeks of duration, lead treated rats recorded 2.64 nmol/gram of tissue and in alcohol treated rats, protein carbonyl content was 2.87 nmol/gram and in lead with alcohol and vitamin E treated rats, protein carbonyl content was 3.29 nmol/gram. In eight weeks of treatment, maximum protein carbonyl content was recorded in lead with alcohol treated rats compared to control.

7.
Clinical Medicine of China ; (12): 363-367, 2011.
Artigo em Chinês | WPRIM | ID: wpr-414185

RESUMO

Objective To investigate the spatial learning and memory ability,the changes of indicators of oxidative stress,and their relationship in transgenic APP/PS1 mouse model of Alzheimer's disease(APP/PS1 mice). Methods The spatial learning and memory ability were assessed by Morris water maze test,and the activity or content of SOD, GSH-PX, MDA, and protein carbonyl in brain tissues were measured by ELISA in the APP/PS1 and wild type (WT) mice. Furthermore, the relationship between the learning and memory performances and the indicators of oxidative stress was examined. Results No significant difference in the spatial learning was observed between the APP/PS1 and WT mice (P <0. 05). The spatial memory which was measured as the percentage of time traveling in the targeted quadrant to the total traveling time was significantlydeclined in the APP/PS1 mice(29. 02 ± 4. 27) % as compared with the WT mice(47. 39 ± 6. 01) %(t =0. 000 ,P <0. 05). The percentage of length of traveling in the targeted quadrant to the total length traveled was significantly lower in the APP/PS1 mice(28. 85 ±3.77)% compared with the WT mice(46. 70 ±5.60)% (t =0. 000,P <0. 05). These findings indicated that the spatial learning and memory ability of APP/PS1 mice was significantly decreased compared to WT mice. There was no significant difference in activity or content of SOD,GSH-PX,and MDA in brain tissues between the APP/PS1 and WT mice (P < 0. 05), while the content of protein carbonyl was significantly elevated in the APP/PS1 mice (2. 67 ±0. 19) than in the WT mice (2. 38 ±0. 15)(t = 0. 008, P < 0. 05). Correlation analysis revealed that the elevated protein carbonyl was negatively correlated with the percentage of length traveled in the targeted quadrant(r = - 0. 639, P < 0. 05) and the percentage of time traveled in the targeted quadrant(r = - 0. 636 ,P < 0. 05). Conclusion The spatial memory impairment was negatively correlated with the elevated protein carbonyl in the APP/PS1 mice, suggesting that protein carbonylation caused by oxidative stress might play an important role in the development of memory impairment in the early stage of Alzheimer's disease.

8.
Indian J Med Sci ; 2010 Oct; 64(10) 476-483
Artigo em Inglês | IMSEAR | ID: sea-145569

RESUMO

Context: Oxidative stress plays a crucial role in the pathogenesis of alcoholic liver disease (ALD). Aim: The present study was undertaken to evaluate the significance of protein carbonyl / glutathione ratio as a biomarker to assess the oxidative stress in alcoholic hepatitis. Settings and Design: The study included 30 patients with alcoholic hepatitis and 30 age-sex- matched controls. Protein carbonyl (PCO) levels was estimated by modified levine's method, malondialdehyde (MDA) by thiobarbituric acid method, reduced glutathione (GSH) by dithiobis-2-nitrobenzoic acid method, total sialic acid (TSA) by modified aminoff's method, plasma transferases (GGT, AST, and ALT), total protein and albumin using commercial kits adapted to autoanalyzer respectively. Statistical Analysis Used: All data were expressed as mean ± SEM. Spearman's correlation analysis and receiver operating characteristic curve were performed using SPSS version 16 for Microsoft. A P value < 0.05 was considered as significant. Results: Alcoholic hepatitis patients showed significantly higher levels of PCO, MDA, GGT, AST, AST/ALT, TSA, and significantly lower GSH, total protein and albumin levels. PCO/GSH ratio in these patients showed a significant positive correlation with GGT (r = 0.594, P = 0.000), AST/ALT (r = 0.443 P = 0.000), MDA (r = 0.727, P = 0.000), TSA (r = 0.729, P = 0.000), and a significant negative correlation with total protein (r = -0.683, P = 0.000) and albumin (r = -0.544, P = 0.000). ROC curve showed a cut off value of 2.735, indicating 100% sensitivity and 90% specificity of PCO/GSH at this value. Conclusions: Alcohol intake regularly for long duration leads to oxidative stress. We suggest that PCO/GSH ratio can be used as a potential biomarker to assess oxidative stress in alcoholic hepatitis.


Assuntos
Biomarcadores , Glutationa/fisiologia , Hepatite Alcoólica/epidemiologia , Humanos , Masculino , Estresse Oxidativo , Carbonilação Proteica/fisiologia
9.
Indian J Pediatr ; 2010 May; 77(5): 515-517
Artigo em Inglês | IMSEAR | ID: sea-142571

RESUMO

Objective. To study the serum levels of oxidative stress markers - malondialdehyde (MDA) and protein carbonyl in babies with perinatal asphyxia and to correlate their levels with the outcome in terms of mortality and neurodevelopmental sequelae. Methods. A group of 40 term AGA (appropriate for gestational age) infants with perinatal asphyxia were selected as cases and same number of healthy babies as controls. Serum levels of oxidative stress markers - malondialdehyde and protein carbonyl were determined in cord blood and at 48 hours of life. Their levels were correlated with the outcome of perinatal asphyxia in terms of mortality and the long term neurological outcome. Results. MDA and protein carbonyl, in cord blood were significantly higher among cases (5.88±1.40 μmol/L and 1.50±0.48 nmol/mg of protein respectively) than controls (3.11±0.82 μmol/L and 0.83±0.19 nmol/mg of protein respectively). Among the cases, MDA and protein carbonyl values at 48 hours of life (7.52 ± 1.06 μmol/L and 2.91 ± 0.62 nmol/mg of protein respectively) were significantly higher than those at birth. MDA at birth and 48 hours was significantly higher among babies who had seizures than those who remained seizure free. These values were also significantly higher in babies who expired as compared to those who survived. Protein carbonyl values though higher in those who had seizures and in those who expired, were not statistically significant from controls. MDA and protein carbonyl at birth and 48 hours were higher in babies with developmental delay but the association was not statistically significant. Conclusions. In hypoxic ischemic encephalopathy (HIE), oxidative stress markers MDA and protein carbonyl are high at birth and rise further at 48 hours and the values correlate with the morbidity and mortality. Therefore, determining the serum levels of oxidative stress markers MDA and protein carbonyl will be of benefit in predicting the outcome in perinatal asphyxia.


Assuntos
Análise de Variância , Asfixia Neonatal/sangue , Biomarcadores/sangue , Estudos de Casos e Controles , Feminino , Sangue Fetal , Idade Gestacional , Humanos , Masculino , Recém-Nascido , Malondialdeído/sangue , Estresse Oxidativo , Estudos Prospectivos , Carbonilação Proteica , Estatísticas não Paramétricas
10.
Nutrition Research and Practice ; : 158-164, 2008.
Artigo em Inglês | WPRIM | ID: wpr-112486

RESUMO

This study investigated that the antioxidative effect of freeze-dried cranberry powder against protein and lipid oxidation and ameliorative effect of serum lipid profile in rat fed atherogenic diet. Six weeks old male Sprague-Dawley rats were divided into the following four groups: normal diet group with 5% corn oil (control), atherogenic diet group with 5% corn oil, 10% lard, 1% cholesterol, and 0.5% sodium cholate (HFC), atherogenic plus 2% cranberry powder diet group (HFC + C2), and atherogenic plus 5% cranberry powder diet group (HFC + C5), and respective diet and water were fed daily for 6 weeks. After the experimental period, the serum lipid profile, such as total cholesterol, HDL-cholesterol, LDL-cholesterol, and triglyceride, ferric reducing ability of plasma (FRAP), plasma phenolics content, superoxide dismutase (SOD) activity, serum protein carbonyl and thiobarbituric acid reactive substances (TBARS) levels were examined. Total phenolic compound and total flavonoid levels in freeze-dried cranberry powder were 9.94 mg/g and 8.12 mg/g, respectively. Serum total cholesterol and LDL-cholesterol levels were not significantly different for cranberry powder treatment, but serum HDL-cholesterol level was significantly increased in HFC + C5 group compared with HFC group. Plasma FRAP value tended to be increased by cranberry powder treatment though there was no significant difference. Plasma total phenol concentrations and SOD activities were not significantly different among all groups. Serum protein carbonyl and TBARS levels were significantly decreased in HFC + C5 group compared with HFC group. Overall results suggested that freeze-dried cranberry powder might have the serum lipid improving effect, as well as antioxidative effect demonstrated by its protective effect against protein and lipid oxidation.


Assuntos
Animais , Humanos , Masculino , Ratos , Biomarcadores , Colesterol , Óleo de Milho , Dieta , Dieta Aterogênica , Gorduras na Dieta , Estresse Oxidativo , Fenol , Plasma , Ratos Sprague-Dawley , Colato de Sódio , Superóxido Dismutase , Tiobarbitúricos , Substâncias Reativas com Ácido Tiobarbitúrico , Vaccinium macrocarpon , Água
11.
Korean Journal of Obstetrics and Gynecology ; : 1354-1362, 2007.
Artigo em Coreano | WPRIM | ID: wpr-27674

RESUMO

OBJECTIVE: To determine if the content of protein carbonyls in amniotic fluid is elevated in preeclamptic women at term. METHODS: A case-control study was conducted to compare contents of protein carbonyls in term amniotic fluid (gestational age at amniocentesis > or = 37 wks) among women who were healthy pregnant, preeclamptic and chronic hypertensive. Protein carbonyls were measured by specific immunoassay. Nonparametric techniques were used for statistical analysis. RESULTS: 1) The median amniotic fluid protein carbonyl of preeclamptic women was significantly higher than that of normal pregnant women (median 0.663 nmol/mg, range 0.013-1.726 nmol/mg vs. median 0.395 nmol/mg, range 0.069-1.503 nmol/mg, p<.05). 2) There was no significant difference in the amniotic fluid protein carbonyl level between women with chronic hypertension and normal pregnant women (median 0.823 nmol/mg, range 0.064-1.575 nmol/mg vs. median 0.395 nmol/mg, range 0.069-1.503 nmol/mg, p=.14). 3) The median amniotic fluid protein carbonyl showed tendency to increase with severity of preeclampsia without reaching statistical significance (normal pregnancy, median 0.395 nmol/mg, range 0.069-1.503 nmol/mg; mild preeclampsia, median 0.663 nmol/mg, range 0.013-1.054 nmol/mg; severe preeclampsia, median 0.842 nmol/mg, 0.391-1.726 nmol/mg; p=.07). The median protein carbonyl in amniotic fluid of women with severe preeclampsia was significantly higher than that of normal pregnant women (median 0.842 nmol/mg, range 0.391-1.726 nmol/mg vs. median 0.395 nmol/mg, range 0.069-1.503 nmol/mg, p<.05). CONCLUSIONS: The protein carbonyls increased in amniotic fluid of women with preeclampsia, but not chronic hypertension at term.


Assuntos
Feminino , Humanos , Gravidez , Amniocentese , Líquido Amniótico , Estudos de Casos e Controles , Hipertensão , Imunoensaio , Estresse Oxidativo , Pré-Eclâmpsia , Gestantes , Carbonilação Proteica
12.
Space Medicine & Medical Engineering ; (6)2006.
Artigo em Chinês | WPRIM | ID: wpr-575054

RESUMO

Objective To observe whether the increase of oxidative stress in PC12 cells could influence the levels of protein carbonyls and nitrotyrosine and alter the cytoskeleton and cell morphology under clinostat condition,and whether the increase of content of nitrate/nitrite in cell culture medium could influence the cell proliferation and differentiation.Method Cell morphology,carbonylated actin and nitrotyrosinated tubulin,and mRNA and protein express of nNOS and iNOS were observed and determined with immunofluorescence and RT-PCR technology in clinostat rotated and control static groups.At the same time,cell density was measured and cell cycles were detected with flow cytometry.The relationship between all these changes and NOS were also analyzed.Result The levels of carbonylated and nitrotyrosinated cytoskeleton protein were altered,no obvious changes in cell morphology but neurite outgrowth after on a clinostat rotation.Cell density also increased significantly,DNA synthesis in cell cycles was shortened.Conclusion All of these results indicate that simulated weightlessness do not alter cell morphology and is beneficial to the growth of PC12 cells.The mechanism involved may be associated with the increase of NOS activity.

13.
Journal of Medical Research ; (12)2006.
Artigo em Chinês | WPRIM | ID: wpr-563321

RESUMO

Objective To study the protein oxidative damage and its possible mechanism caused by multi-walled nanotubes(MWCNTS)in mice.Methods Totally 20 Kun-ming mice were divided randomly into 4 testing groups(n=5 for each group),with 0.1,0.2 and 0.4mg/ml MWCNTS suspension injected groups and saline injected group as control group.After 5 days exposure,the protein carbonyl content was measured by using spectrophotometric DNPH assay to reflect the degree of protein oxidative damage.Results The results showed that the protein carbonyl content in livers in 0.2 and 0.4mg/ml MWCNTS suspension injected groups were significantly higher than that in saline group(P

14.
Korean Journal of Obstetrics and Gynecology ; : 1635-1644, 2005.
Artigo em Coreano | WPRIM | ID: wpr-36515

RESUMO

OBJECTIVE: This study was performed to compare the prooxidative activity stimulating the protein carbonyl formation by 3rd generation cephalosporin (moxalactam) and amoxacillin in the uterine venous, umbilical venous, and umbilical arterial plasma of preeclampsia with that of normal pregnancy. METHODS: Lipid peroxide levels in the uterine venous, umbilical venous, and umbilical arterial plasma of normal pregnancy (n=16) and preeclampsia (n=16) were measured by thiobarbituric acid reaction. The basal protein carbonyl contents in the uterine venous, umbilical venous, and umbilical arterial plasma of normal pregnancy (n=16) and preeclampsia (n=16) were determined by the 2,4-dinitrophenylhydrazine (DNPH) method. After plasma of them were mixed and incubated up to 5 hours with 0.2 mL of 1 mM moxalactam or amoxacillin, the protein carbonyl contents in them were measured by DNPH. RESULTS: Lipid peroxide levels in the uterine venous plasma, umbilical venous plasma, and umbilical arterial plasma of preeclampsia were significantly higher than those of normal pregnancy (3.11+/-1.21 vs. 2.18+/-1.16 nmol/mg protein, p<0.05, 5.85+/-1.67 vs. 3.79+/-1.66 nmol/ mg protein, p<0.01, 6.00+/-1.91 vs. 4.99+/-1.78 nmol/mg protein, p<0.01). Protein carbonyls formation by moxalactam in the uterine venous plasma, umbilical venous plasma, and umbilical arterial plasma of preeclampsia were signigicant higher than those of normal pregnancy (19.69+/-8.43 vs. 10.84+/-3.00 nmol/mg protein, p<0.01, 18.94+/-6.96 vs. 10.63+/-1.81 nmol/mg protein, p<0.01, 14.62+/-5.77 vs. 11.21+/-2.08 nmol/mg protein, p<0.05). There were significant positive correlations between lipid peroxide and moxalactam-induced protein carbonyls levels of the uterine venous plasma, umbilical venous plasma, and umbilical arterial plasma (p<0.01). CONCLUSION: These results suggest that increase in the prooxidative activity stimulating the oxidative modification of proteins in utero-placental unit may be involved in the pathogenesis of preeclampsia.


Assuntos
Gravidez , Moxalactam , Plasma , Pré-Eclâmpsia , Carbonilação Proteica
15.
Korean Journal of Community Nutrition ; : 536-544, 2004.
Artigo em Coreano | WPRIM | ID: wpr-199351

RESUMO

To evaluate the antioxidative effect of maengjong-juk (Phyllostachys pubescens) extract coated rice in vivo system, maengjong-juk extract coated rice diets were fed to C57BL/6 mice for 16 weeks. Plasma total antioxidative capacity, hepatic lipid peroxidation, protein oxidation, activities of antioxidative enzymes and total glutathione content were measured. Plasma total antioxidative capacity was elevated significantly in maengjong-juk extract diets supplemented group in a dose dependant manner. Hepatic TBARS contents were significantly decreased in maengjong-juk extract diets supplemented group compared to high cholesterol group. Maengjong-juk extract coated rice diets suppressed the protein oxidation significantly in liver. Activities of hepatic antioxidative enzymes such as total SOD, Cu,Zn-SOD, Mn-SOD, GSH-Px and catalase activities of maengjong-juk extract coated rice diets were significantly higher than those of high cholesterol diet. Total hepatic glutathione content was significantly increased by maengjong-juk extract coated rice diets administration. According to this study, numerous antioxidative materials and phytochemicals containing in maengjong- juk extracts appear to protect antioxidative systems in C57BL/6 mice fed bamboo extract coated rice diet.


Assuntos
Animais , Camundongos , Catalase , Colesterol , Dieta , Dieta Aterogênica , Glutationa , Peroxidação de Lipídeos , Fígado , Compostos Fitoquímicos , Plasma , Superóxido Dismutase , Substâncias Reativas com Ácido Tiobarbitúrico
16.
Chinese Journal of Pathophysiology ; (12)1989.
Artigo em Chinês | WPRIM | ID: wpr-529197

RESUMO

AIM: To investigate the preventive effects of Shengmai San (SMS) on oxidative damage in mentally stressed mice.METHODS: An oxidative stress mouse model was established by moustache-removed. Protein carbonyl and thiobarbituric acid reactive substance (TBARS) formation were determined as the oxidative stress markers.RESULTS: (1)Moustache-cut was founded to significantly enhance the behavioral movements of mice, especially large movements (movement 2 and rearing). SMS pre-administration inhibited the accelerated movements. (2) Protein carbonyl was increased in brain, heart, liver and kidney. TBARS in liver and heart increased in the moustache-cut mice, but SMS pretreatment inhibited the increased protein carbonyl and TBARS.CONCLUSION: SMS has the preventive effects on oxidative damage induced by emotional stress.

17.
Annals of Dermatology ; : 16-20, 1989.
Artigo em Inglês | WPRIM | ID: wpr-61552

RESUMO

No abstract available.


Assuntos
Animais , Camundongos , Peróxidos Lipídicos , Pele
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