P.0544 Hemodynamic effects of almotriptan and frovatriptan on male rats with experimental model of migraine

2021 ◽  
Vol 53 ◽  
pp. S400-S401
Author(s):  
K. Saracheva ◽  
P. Hrischev ◽  
L. Vasileva ◽  
M. Topolov ◽  
D. Dimitrova ◽  
...  
Author(s):  
Rogério Barbosa de Magalhães Barros ◽  
Thaís Alvim-Silva ◽  
Júlia Raquel Nunes de Souza ◽  
Emiliana Barbosa Marques ◽  
Nazareth N. Rocha ◽  
...  

Abstract Literature describes breast milk as the best food for the newborn, recommending exclusive breastfeeding for up to 6 months of age. However, it is not available for more than 40% of children worldwide. Pharmacological and non-pharmacological models of 3-day early weaning were developed in rodents to investigate later outcomes related solely to this nutritional insult. Thus, the present work aimed to describe biometric, nutritional, biochemical, and cardiovascular outcomes in adult male rats submitted to 3-day early weaning achieved by maternal deprivation. This experimental model comprises not only nutritional insult but also emotional stress, simulating mother abandoning. Male offspring were physically separated from their mothers at 21st (control) or 18th (early weaning) postnatal day, receiving water/food ad libitum. Analysis performed at postnatal days 30, 90, 150, and 365 encompassed body mass and food intake monitoring and serum biochemistry determination. Further assessments included hemodynamic, echocardiographic, and cardiorespiratory evaluation. Early-weaned males presented higher body weight when compared to control as well as dyslipidemia, higher blood pressure, diastolic dysfunction, and cardiac hypertrophy in adult life. Animals early deprived of their mothers have also presented a worse performance on the maximal effort ergometer test. This work shows that 3-day early maternal deprivation favors the development of cardiovascular disease in male rats.


2006 ◽  
Vol 164 ◽  
pp. S79 ◽  
Author(s):  
Sogra Bahmanpour ◽  
Fereidon Kavoosi ◽  
Mohammad Reza Panjehshahin ◽  
Tahera Talaei Khozani

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
María del Carmen Baez ◽  
Mariana Tarán ◽  
Candelaria Llorens ◽  
Ariel Balceda ◽  
María de La Paz Scribano ◽  
...  

In an experimental model of atherogenesis induced by hyperfibrinogenemia (HF), the pharmacological response of vitamin E was studied in order to assess its antioxidant effect on the mitochondrial morphofunctional alterations in aortic smooth muscle cells. Three groups of male rats were used: (Ctr) control, (AI) atherogenesis induced for 120 days, and (AIE) atherogenesis induced for 120 days and treated with vitamin E. HF was induced by adrenalin injection (0.1 mg/day/rat) for 120 days. AIE group was treated with the administration of 3.42 mg/day/rat of vitamin E for 105 days after the first induction. Mitochondria morphology was analyzed by electronic microscopy (EM) and mitochondrial complexes (MC) by spectrophotometry. In group AI the total and mean number of mitochondria reduced significantly, the intermembranous matrix increased, and swelling was observed with respect to Ctr and AIE (P<0.01). These damages were related to a significant decrease in the activity of citrate synthase and complexes I, II, III, and IV in group AI in comparison to Ctr (P<0.001). Similar behavior was presented by group AI compared to AIE (P<0.001). These results show that vitamin E produces a significative regression of inflammatory and oxidative stress process and it resolved the morphofunctional mitochondrial alterations in this experimental model of atherogenic disease.


2017 ◽  
Vol 2 (3) ◽  
pp. 73-79
Author(s):  
M.A. Marzouk ◽  
S.A. Hussein ◽  
Y.A. Elsenosy ◽  
M.K. Mahfouz ◽  
A.D.A. ElMageid

2020 ◽  
Author(s):  
Natalí N. Guerrero‐Vargas ◽  
Carmen Zárate‐Mozo ◽  
Mara A. Guzmán‐Ruiz ◽  
Alfredo Cárdenas‐Rivera ◽  
Carolina Escobar

1970 ◽  
Vol 4 (2) ◽  
pp. 64-73
Author(s):  
André Luiz Rios Dos Santos ◽  
Nilo César do Vale Baracho

Objetivos: Avaliar os efeitos do tratamento crônico com sinvastatina na função renal de ratos submetidos a um modelo experimental de doença renal crônica. Metodologia: Foram utilizados 30 ratos, machos, adultos jovens, da linhagem Wistar, com peso entre 200 e 250 g e idade entre 60 e 90 dias. Os animais foram divididos aleatoriamente em 3 grupos com 10 ratos cada. Foi realizada a cirurgia seguindo o modelo experimental de doença renal crônica moderada (DRC-M) baseado na metodologia descrita por Ormrod & Miller, 1980. Após os procedimentos cirúrgicos, os animais receberam os referidos tratamentos, por um período de duas semanas: Grupo 1 - Animais com DRC-M tratados com água destilada VO (Gavagem) (n=10). Grupo 2 - Animais com DRC-M tratados com 5mg/Kg de sinvastatina VO (n=10). Grupo 3 - Animais com DRC-M tratados com 10mg/Kg de sinvastatina VO (n=10). Resultados: A indução de DRC-M não produziu alterações significativas sobre o débito urinário, ingesta hídrica, ingesta alimentar e parâmetros da função renal estudados, quando comparados o grupo controle com sinvastatina 5mg/Kg ou com sinvastatina 10mg/Kg ou quando comparados os grupos sinvastatinas entre si. Conclusão: Esses dados demonstram que o tratamento com sinvastatina, independente da dosagem do trabalho, não produziu melhora da função renal de ratos submetidos a um modelo experimental de Doença Renal Crônica Moderada (DRC-M).  Palavras-chave: doença renal crônica, sinvastatina, experimentos com ratos ABSTRACT Objectives: To evaluate the effects of chronic treatment with sinvastatin on renal function in rats subjected to an experimental model of chronic renal disease. Methods: 30 male rats were young adults, the Wistar strain, weighing between 200 and 250 g and aged between 60 and 90 days were used. The animals were randomly divided into 3 groups with 10 rats in each. Surgery was performed following the experimental moderate chronic (CKD-M) model of kidney disease based on the methodology described by Miller & Ormrod, 1980. After the surgical procedures, animals receive these treatments for a period of two weeks: Group 1 - animals with CKD-M with distilled water and treated orally (gavage) (n = 10). Group 2 - animals with CKD-M and treated with sinvastatin 5mg/kg orally (n = 10). Group 3- animals with CKD-M and sinvastatin treated with 10mg/kg orally (n = 10). Results: Induction of CKD-M produced no significant change on urine output, fluid intake, food intake and renal function parameters studied when comparing the control group with sinvastatin or sinvastatin 5mg/kg or 10mg/kg when comparing groups sinvastatin to each other. Conclusion: These data demonstrate that treatment with sinvastatin dosage independent from the work produced no improvement in renal function in rats subjected to an experimental model of Moderate Chronic Kidney Disease (CKD-M). Keywords: Chronic Kidney Disease, sinvastatin, experiments with rats. 


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