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| Olmedo,R; Herrera,J.M; Lucini,E.I; Zunino,M.P; Pizzolitto,R.P; Dambolena,J.S; Zygadlo,J.A. |
| The development of natural insecticides would help to decrease the negative impact of synthetic insecticides. Fumigant toxicity of essential oil of Tagetes filifolia Lag (Asterales: Asteraceae) and its major compounds were evaluated against Tribolium castaneum Herbst (Coleoptera: Tenebrionidae). The essential oils were analyzed by gas chromatography-mass spectrometry. The essential oil and (E)-anethole were the most toxic at 24 h against adult insects (CL50 = 2.4 y 2.6 µL/mL water, respectively). Changes in the products of lipid peroxidation were evidenced by an increase in malondialdehyde content. Acetylcholinesterase activity in vitro, of T. castaneum adults, was also reported. (E)-anethole and estragole showed similar acetylcholinesterase inhibition (54... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fumigant toxicity; Tagetes filifolia; Tribolium castaneum; Lipid peroxidation; Acetylcholinesterase activity. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-298X2015000200004 |
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| LAHNECHE,AMINA M.; BOUCHEHAM,RATIBA; OZEN,TEVFIK; ALTUN,MUHAMMED; BOUBEKRI,NASSIMA; DEMIRTAS,IBRAHIM; BICHA,SABRINA; BENTAMENE,ALI; BENAYACHE,FADILA; BENAYACHE,SAMIR; ZAMA,DJAMILA. |
| Abstract: This study aimed to evaluate the in vitro antiproliferative and inhibition of oxidative DNA-damage activities of n-butanol (n-BuOH) extract of Centaurea sphaerocephala. The in vitro antioxidant activity of the ethyl acetate (EtOAc) and the n-BuOH extracts of this plant were also assayed. To investigate the antioxidant potential, extracts were tested for their capacity to scavenge 1,1-diphenyl-2-picrylhydrazyl (DPPH·) and to inhibit lipid peroxidation using the TBARs method. The contents of total phenolics and flavonoids were measured. Additionally, antiproliferative activity and DNA-damage inhibition of the n-BuOH extract was determined using XCELLigence RTCA instrument and photolyzing 46966 plasmid, respectively. The results exhibited that the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Centaurea sphaerocephala; Phenolics; Antioxidant; Lipid peroxidation; Antiproliferative; DNA-damaged inhibition. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500619 |
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| Alcântara,Berenice K. de; Pizzaia,Daniel; Piotto,Fernando A.; Borgo,Lucélia; Brondani,Gilvano E.; Azevedo,Ricardo A.. |
| Lipid peroxidation and root elongation of Eucalyptus grandis × Eucalyptus camaldulensis were studied under stress conditions in response to aluminum (Al), a metal known to limit agricultural productivity in acidic soils primarily due to reduced root elongation. In Brazil, the Grancam 1277 hybrid (E. grandis × E. camaldulensis) has been planted in the "Cerrado", a region of the country with a wide occurrence of acidic soils. The present study demonstrated that the hybrid exhibited root growth reduction and increased levels of lipid peroxidation after 24h of treatment with 100 µM of Al, which was followed by a reduction in lipid peroxidation levels and the recovery of root elongation after 48h of Al exposure, suggesting a rapid response to the early... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aluminum; Eucalypt; Lipid peroxidation; Oxidative stress; Root growth. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000201063 |
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| QUEIROZ,ESTELA R.; ABREU,CELESTE M.P. DE; ROCHA,DENISE A.; SOUSA,RAIMUNDO V. DE; FRÁGUAS,RODRIGO M.; BRAGA,MARIANA A.; CÉSAR,PEDRO H.S.. |
| ABSTRACT Dyslipidemias are associated with the incidence of cardiovascular diseases, obesity, diabetes, hypertension and hepatic steatosis, being the cause of morbidity and mortality. This study investigated the effects of lychee peel flour (PF) on serum levels of total cholesterol (TC), low-density lipoprotein (LDL-c), triacylglycerols (TAG) and various parameters related to obesity, in rats fed a hypercholesterolemic diet. Therefore, 20 male rats were used. In the first 21 days, the animals were fed a hypercholesterolemic diet, except for control group. In the following 21 days, their diets were modified, and they received a standard diet (Control); hypercholesterolemic (Hyper); hypercholesterolemic + 5% PF (PF5) and hypercholesterolemic + 10% PF (PF10).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cholesterol; Lipid peroxidation; Steatosis; Triacylglycerol; Weight gain. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100267 |
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| BIANCHINI,MATHEUS C.; GALVÃO,DENNYURA O.; TAMBORENA,TATIANA; ALVES,CLAUDIA O.; PUNTEL,ROBSON L.. |
| ABSTRACT Mentha pulegium (Lamiaceae) tea has been used as a traditional medicine; however, the modulatory effect of M. pulegium extracts on damage to human erythrocytes associated to t-butyl hydroperoxide (t-BHP) exposure remains to be investigated. Accordingly, we perform this study in order to test the hypothesis that aqueous and ethanolic extracts of M. pulegium could modulate the hemolysis associated to t-BHP exposure, non-protein thiol (NPSH) oxidation and lipid peroxidation (measured as thiobarbituric acid reactive substances - TBARS) in human erythrocytes. Samples were co-incubated with t-BHP (4 mmol/L) and/or aqueous or ethanolic extracts (10-1000 mg/mL) during 120 min to further analysis. We found that both extracts, when associated to t-BHP,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mentha pulegium; Lamiaceae; Hemolysis; Lipid peroxidation; NPSH oxidation; Erythrocytes.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602901 |
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| Nascimento,A.L.C.; Santos,A.D.F.; Azevedo,H.C.; Velarde,J.M.D.S.; Lima,C.A.; Pereira,M.A.; Pinheiro,G.O.; Gomes,L.C.. |
| ABSTRACT The study aimed to evaluate the action of aqueous extract of noni in an extender for sheep semen freezing. Treatments differed in inclusion of aqueous extract of noni in the extender: T1 ˗ no addition; T2 ˗ 24µg/mL; T3 ˗ 72µg/mL; and T4 ˗ 120µg/mL. Ejaculates were collected, diluted in the four treatments, and frozen. After thawing, the semen was subjected to a thermoresistance test and evaluated for subjective motility, vigor, membrane integrity assessment by hypo-osmotic swelling test, live-dead assay, computer-assisted sperm analysis and the status of sperm capacitation and acrosome reaction. Data were subjected to ANOVA, and then to Student Newman Keuls’s test at 5% significance level. In the thermoresistance test after two hours of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Concentrations; Lipid peroxidation; Plasma membrane; Spermatozoon. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000501547 |
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| Farías,Jorge G; Zepeda,Andrea B; Calaf,Gloria M. |
| Melatonin (N-acetyl-5-methoxytryptamine) is the main secretory product of the pineal gland in all mammals including humans, but it is also produced in other organs. It has been previously demonstrated to be a powerful organ-protective substance under oxidative stress conditions. The aim of this study was to evaluate the protective effect of melatonin in several organs such as heart, lung, kidney, and of the reproductive system, such as testis and epididymis in animals exposed to intermittent hypobaric hypoxia and therefore exposed to oxidative stress and analyzed by lipid peroxidation. Ten-week-old male Wistar rats were divided into 6 groups for 96 hours during 32 days under: 1) Normobaric conditions, 2) plus physiologic solution, 3) plus melatonin, 4)... |
| Tipo: Journal article |
Palavras-chave: Intermittent hypobaric hypoxia; Lipid peroxidation; Melatonin; Oxidative stress. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000100011 |
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| PEJIC,SNEZANA; KASAPOVIC,JELENA; TODOROVIC,ANA; STOJILJKOVIC,VESNA; PAJOVIC,SNEZANA B. |
| Oxidative stress is considered to be involved in pathogenesis of many disorders of the female genital tract. In this study, we explored the lipid peroxidation levels and antioxidant enzyme activities in women diagnosed with different forms of uterine diseases in order to evaluate the extent of oxidative stress in blood of such patients. Blood samples of healthy subjects and gynecological patients were collected and subjected to assays for superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and lipid hydroperoxides. The results show that alterations of measured parameters vary with the enzyme type and diagnosis. However, both reduction in antioxidants and elevation of lipid peroxidation were observed in general. Lipid... |
| Tipo: Journal article |
Palavras-chave: Antioxidant enzymes; Endometrial polypus; Endometrial hyperplasia; Endometrial adenocarcinoma; Lipid peroxidation; Uterine myoma. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000500005 |
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| HAMDEN,KHALED; CARREA U,SERGE; AYADI MARKI,FATMA; MASMOUDI,HATEM; EL FEKI,ABDELFATTAH. |
| Cadmium (Cd) is a highly toxic environmental and industrial cumulative pollutant that affeets many organs, especially the liver. The present study was designed to evalúate the antioxidant effect of green tea on cadmium-induced hepatic dysfunction and oxidative stress in rats. Adult male Wistar rats were administered cadmium by injection of 20 emoles /kg bw/ every 3 days for six months. This study revealed significant (p < 0.05) liver dysfunction, lipid peroxidation and a decline in antioxidant enzyme activities in the liver of cadmium-treated rats compared to control animáis. Compared to control rats, the activities of lactate dehydrogenase (LDH), gammaglutamyl transferase (GGT), acid phosphatase (PAC), phosphatase alkaline (PAL), as well as bilirubin... |
| Tipo: Journal article |
Palavras-chave: Cadmium; Rat liver dysfunction; Green tea; Antioxidant enzymes; Lipid peroxidation. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000300009 |
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| PRADEEP,KANNAMPALLI; RAJ MOHAN,CHANDRASEKARAN VICTOR; GOBIANAND,KUPANNAN; KARTHIKEYAN,SIVANESAN. |
| Diethylnitrosamine (DEN), found in many commonly consumed foods, is widely reported to induce cancer in animals and humans. The aim of the present study was to investigate the hepatoprotective and antioxidant activities of the leaf extract of the medicinal plant Cassia fistula Linn. against diethylnitrosamine induced liver injury in ethanol pretreated rats. Albino Wistar rats, pretreated with ethanol for 15 days, were administered a single dose of DEN. Thirty days after DEN administration, hepatotocellular damage was observed histologically, along with elevated levels of serum AST, ALT, ALP, LDH, γ-GT and bilirubin and a simultaneous fall in the levels of the marker enzymes in the liver tissue. Liver oxidative stress was confirmed by elevated... |
| Tipo: Journal article |
Palavras-chave: Antioxidants; Cassia fistula; Diethylnitrosamine; Hepatoprotective; Lipid peroxidation; Silymarin. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000100013 |
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| Otunola,Gloria A; Oloyede,Oyelola B; Oladiji,Adenike T; Afolayan,Anthony J. |
| BACKGROUND: Effect of aqueous extracts of Allium sativum (garlic), Zingiber officinale (ginger), Capsicum fructensces (cayenne pepper) and their mixture on oxidative stress in rats fed high Cholesterol/high fat diet was investigated. Rats were randomly distributed into six groups (n = 6) and given different dietary/spice treatments. Group 1 standard rat chow (control), group 2, hypercholesterolemic diet plus water, and groups 3, 4, 5, 6, hypercholesterolemic diet with 0.5 ml 200 mg · kg-1 aqueous extracts of garlic, ginger, cayenne pepper or their mixture respectively daily for 4 weeks. RESULTS: Pronounced oxidative stress in the hypercholesterolemic rats evidenced by significant (p < 0.05)... |
| Tipo: Journal article |
Palavras-chave: Lipid peroxidation; Oxidative stress; Spices; Hypercholesterolemia; ROS. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100005 |
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| Registros recuperados: 88 | |
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