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Antioxidant effect of simvastatin throught oxidative imbalance caused by lisdexamfetamine dimesylate Anais da ABC (AABC)
Eger,Guilherme A.; Ferreira,Vinícius V.; Batista,Camila R.; Bonde,Henrique; Lima,Daniela D. de; Wyse,Angela T.S.; Cruz,Júlia N. da; Rodrigues,André F.; Magro,Débora D. Dal; Cruz,José G.P. da.
The present study aims to directly investigate the behavioral and antioxidant effects of simvastatin in a model of bipolar mania induced by lisdexamfetamine dimesylate. Wistar rats were treated for 30 days with simvastatin. On the 24th day after the start of treatment, each rat was administered lisdexamfetamine dimesylate for 7 days. The results suggest that simvastatin combined with lisdexamfetamine dimesylate induced a significant increased locomotion and lisdexamfetamine dimesylate administration causes an oxidative imbalance determined by an increment in lipid peroxidation, protein oxidation and alterations in the activities of antioxidant enzymes in brain areas; moreover, in the presence of simvastatin, most of these effects were prevented. These...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amphetamine; Lisdexamfetamine dimesylate; Oxidative stress; Simvastatin.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100335
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Simvastatin inhibits planktonic cells and biofilms ofCandida and Cryptococcusspecies BJID
Brilhante,Raimunda Sâmia Nogueira; Caetano,Erica Pacheco; Oliveira,Jonathas Sales de; Castelo-Branco,Débora de Souza Collares Maia; Souza,Elizabeth Ribeiro Yokobatake; Alencar,Lucas Pereira de; Cordeiro,Rossana de Aguiar; Bandeira,Tereza de Jesus Pinheiro Gomes; Sidrim,José Júlio Costa; Rocha,Marcos Fábio Gadelha.
ABSTRACTThe antifungal activity of some statins against different fungal species has been reported. Thus, at the first moment, the in vitro antifungal activity of simvastatin, atorvastatin and pravastatin was tested againstCandida spp. and Cryptococcus spp. Then, in a second approach, considering that the best results were obtained for simvastatin, this drug was evaluated in combination with antifungal drugs against planktonic growth and tested against biofilms ofCandida spp. and Cryptococcus spp. Drug susceptibility testing was performed using the microdilution broth method, as described by the Clinical and Laboratory Standards Institute. The interaction between simvastatin and antifungals against planktonic cells was analyzed by calculating the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Candida; Cryptococcus; Simvastatin; Antifungal activity; Biofilm.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000500459
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Soy milk versus simvastatin for preventing atherosclerosis and left ventricle remodeling in LDL receptor knockout mice BJMBR
Santos,L.; Davel,A.P.; Almeida,T.I.R.; Almeida,M.R.; Soares,E.A.; Fernandes,G.J.M.; Magalhães,S.F.; Barauna,V.G.; Garcia,J.A.D..
Functional food intake has been highlighted as a strategy for the prevention of cardiovascular diseases by reducing risk factors. In this study, we compared the effects of oral treatment with soy milk and simvastatin on dyslipidemia, left ventricle remodeling and atherosclerotic lesion of LDL receptor knockout mice (LDLr-/-) fed a hyperlipidic diet. Forty 3-month old male LDLr-/- mice were distributed into four groups: control group (C), in which animals received standard diet; HL group, in which animals were fed a hyperlipidic diet; HL+SM or HL+S groups, in which animals were submitted to a hyperlipidic diet plus soy milk or simvastatin, respectively. After 60 days, both soy milk and simvastatin treatment prevented dyslipidemia, atherosclerotic lesion...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soy milk Dyslipidemia Oxidative stress Inflammation Atherosclerosis; Simvastatin.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000300701
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Pleiotropic effects of simvastatin in physically trained ovariectomized rats BJMBR
Bernardes,N.; Brito,J.O.; Fernandes,T.G.; Llesuy,S.F.; Irigoyen,M.C.; Belló-Klein,A.; De Angelis,K..
This study tested the hypothesis that simvastatin treatment can improve cardiovascular and autonomic functions and membrane lipoperoxidation, with an increased effect when applied to physically trained ovariectomized rats. Ovariectomized rats were divided into sedentary, sedentary+simvastatin and trained+simvastatin groups (n = 8 each). Exercise training was performed on a treadmill for 8 weeks and simvastatin (5 mg/kg) was administered in the last 2 weeks. Blood pressure (BP) was recorded in conscious animals. Baroreflex sensitivity was evaluated by the tachycardic and bradycardic responses to BP changes. Cardiac vagal and sympathetic effects were determined using methylatropine and propranolol. Oxidative stress was evaluated based on heart and liver...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Menopause; Exercise training; Simvastatin; Autonomic function; Oxidative stress.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000500447
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Are the beneficial cardiovascular effects of simvastatin and metformin also associated with a hormone-dependent mechanism improving insulin sensitivity? BJMBR
Bulcão,C.; Giuffrida,F.M.A.; Ribeiro-Filho,F.F.; Ferreira,S.R.G..
In addition to lipid-lowering and cardiovascular protective actions, statins may have beneficial effects on insulin sensitivity. The objective of the present study was to evaluate the effect of simvastatin therapy on insulin resistance and on leptin, adiponectin, and C-reactive protein (CRP) levels, as compared to metformin, in overweight pre-diabetic subjects. Forty-one subjects with BMI >25 kg/m² and impaired fasting glucose or impaired glucose tolerance were randomized to take simvastatin, 20 mg/day (N = 20) or metformin, 1.7 g/day (N = 21) for 16 weeks. Blood samples for the determination of metabolic, hormonal, and inflammatory parameters were obtained at baseline and after each treatment. After metformin therapy, significant reductions in mean BMI...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Simvastatin; Metformin; Insulin resistance; Leptin; Adiponectin.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000200009
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Novel Eudragit® -based polymeric nanoparticles for sustained release of simvastatin BJPS
Rodrigues,Deborah Fernandes; Couto,Renê Oliveira do; Sinisterra,Rubén Dario; Jensen,Carlos Eduardo de Matos.
This paper reports on the development of nanoparticles aiming at the in vitro controlled release of simvastatin (SVT). The nanoparticles were prepared by the nanoprecipitation method with polymers Eudragit® FS30D (EDGFS) or Eudragit® NE30D (EDGNE). EDGFS+SVT nanoparticles showed mean size of 148.8 nm and entrapment efficiency of 76.4%, whereas EDGNE+SVT nanoparticles showed mean size of 105.0 nm and entrapment efficiency of 103.2%. Infrared absorption spectra demonstrated that SVT incorporated into the polymer matrix, especially EDGNE. Similarly, the differential scanning calorimeter (DSC) curve presented no endothermic peak of fusion, indicating that the system is amorphous and the drug is not in the crystalline state. The maintenance of SVT in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Simvastatin; Nanoparticles; Poly-methylmethacrylate; Dissolution; Drug delivery systems.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100591
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CYP3A5 genotyping for assessing the efficacy of treatment with simvastatin and atorvastatin Genet. Mol. Biol.
Kolovou,Genovefa; Kolovou,Vana; Ragia,Georgia; Mihas,Constantinos; Diakoumakou,Olga; Vasiliadis,Ioannis; Mavrogeni,Sophie; Vartela,Vassiliki; Manolopoulos,Vangelis G.
In this work, we examined the impact of polymorphism in the cytochrome P450 (CYP) 3A5 gene, CYP3A5*1 (6986A > G, rs 776746), on the reduction in the lipid levels caused by simvastatin and atorvastatin. We studied 350 hyperlipidemic patients who received 10-40 mg of atorvastatin (n = 175) or simvastatin (n = 175) daily. Genotyping for CYP3A5 was done by PCR-RFLP analysis. Differences in the lipid profile before and after treatment were expressed as the % difference. The frequency of CYP3A5 polymorphism was 13.4% for heterozygotes and 86.6% for homozygotes. Comparison of the responses to same dose of each drug showed that the highest % difference was associated with total cholesterol (TC) in subjects receiving atorvastatin 40 mg compared with simvastatin...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atorvastatin; Cholesterol; CYP3A5 gene polymorphism; Simvastatin.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000200129
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Differential Therapeutic Effects of Crataegus aronia and Simvastatin on the Hepatocyte Ultrastructure in Hepatic Steatosis International Journal of Morphology
Al Humayed,Suliman; Eid,Refaat A; Shatoor,Abdullah S; Haidara,Mohamed A; Zaki,Mohamed Samir A; Al-Ani,Bahjat.
Complications of fat accumulation in liver, hepatic steatosis such as liver cirrhosis and liver failure are among the common public health problems. We sought to investigate the damage to the hepatocyte ultrastructure induced by high fat diets (HFD) and compared the therapeutic effects at the cellular level of two antioxidant and lipid lowering agents; Crataegus aronia extracts and simvastatin on hepatic steatosis. Rats were either fed with HFD (model group) or low fat diets (LFD) (control group) for 15 weeks before being sacrificed and therapeutic groups started the treatment with these agents after week 11 until the sacrifice day. Harvested liver tissues were examined using transmission electron microscopy (TEM) and liver homogenates were assayed for...
Tipo: Journal article Palavras-chave: Hepatic steatosis; Mitochondrial dysfunction; NAFLD; Crataegus aronia; Simvastatin.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200032
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Effect of Statins and Aerobic Physical Exercise on Liver Function in Dyslipidemic Rats: Morphometric Study International Journal of Morphology
Accioly,Marilita Falângola; Souza,Dorotéia Rossi Silva; Padulla,Susimary Aparecida Trevizan; Camargo Filho,José Carlos Silva; do Carmo,Edna Maria; Martins,Alex Tadeu; Brandão,Antônio Carlos; Azoubel,Reinaldo.
The present study was carried out to evaluate the effect of statins associated with physical exercise (PE) in liver cells in dyslipidemic rats through cariometry. The animals were divided into six groups: animals subjected to a hypercholesterolemic diet (HD), simvastatin, with (G1) and without (G2) physical exercise (PE); HD submitted (G3) or not (G4) to PE, and commercial food diet (F) with (G5) and without (G6) PE. Histological analysis of the liver was performed by staining the slides with hematoxylin and eosin. The cariometric study included measuring the major and minor diameters of the hepatocytes nuclei. The Shapiro-Wilk test was also performed. To determine the differences among the groups, the Kruskal-Wallis Test with Dunn's post-test were...
Tipo: Journal article Palavras-chave: Simvastatin; Exercise; Diet; Cariometry.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400026
Registros recuperados: 9
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