metabolic programming of lipid profile and reproductive organs weight by leptin treatment on early life programação metabólica do perfil lipídico e peso dos órgãos do sistema reprodutor pelo tratamento com leptina nos primeiros dias de vida

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ID: 163657
2010
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Abstract
PURPOSE: To evaluate whether the neonatal leptin treatment during the first days of life can program the male reproductive organs weight and the lipid profile. METHODS: At birth 6 dams were divided into 2 groups: Leptin - each pup was injected with 50μL of recombinant rat leptin (80ng/g BW, sc), for the first 10 d of lactation; Control - each pup received the same volume of saline. After weaning, all pups received unlimited access to food until 190 days of age when they were killed. Values are given as mean ± SEM of 6 animals and Test t Student was used to analyze the results. RESULTS: The leptin treatment resulted in a significant increase in body weight (Control= 411.8±16.31; Leptin= 481.8±11.29, p=0.005) and food consumption (Control= 25.32±0.09; Leptin= 32.42±0.15, p=0.0001) and a significant reduction in triglycerides levels (Control= 540.0±117.9; Leptin= 93.25±15.21, p=0.006) and in the weight of hypothalamus (Control= 0.234±0.016; Leptin= 0.154±0.015, p=0.007), pituitary (Control= 0.104±0.0120; Leptin= 0.033±0.012, p=0.003), testis (Control= 3.75±0.055; Leptin= 3.19±0.10, p=0.002) and prostate (Control=1.641±0.1389; Leptin= 0.91±0.07, p=0.001). CONCLUSION: Leptin treatment on the first days of life can program the reproductive organs weight and the lipid profile of the progeny.
OBJETIVO: Avaliar se o tratamento neonatal com leptina durante os primeiros dias de vida poderia programar o peso dos orgãos do sistema reprodutor masculino e o perfil lipídico. MÉTODOS: Ao nascimento seis ratas-mãe foram distribuídas em dois grupos: Leptina - cada filhote recebeu 50μL de leptina recombinante (80ng/gPC, SC) nos primeiros 10 dias de lactação; Controle - cada filhote recebeu o mesmo volume de salina. Após o desmame, todos os filhotes tiveram acesso ilimitado a ração até 190 dias de idade quando foram mortos. Os dados são expressos como média ± erro padrão e foram analisados pelo teste t Student. RESULTADOS: O tratamento com leptina resultou em aumento significativo no peso corporal (Control= 411.8±16.31; Leptin= 481.8±11.29, p=0.005) e consumo alimentar (Control= 25.32±0.09; Leptin= 32.42±0.15, p=0.0001) e redução significativa nos níveis séricos de triglicerídeos (Control= 540.0±117.9; Leptin= 93.25±15.21, p=0.006), no peso do hipotálamo (Control= 0.234±0.016; Leptin= 0.154±0.015, p=0.007), hipófise (Control= 0.104±0.0120; Leptin= 0.033±0.012, p=0.003), testículo (Control= 3.75±0.055; Leptin= 3.19±0.10, p=0.002) e próstata (Control=1.641±0.1389; Leptin= 0.91±0.07, p=0.001). CONCLUSÃO: O tratamento com leptina nos primeiros dias de vida pode programar o peso dos órgãos do sistema reprodutor e o perfil lipídico da prole.
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marques2010actametabolic Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Durval Santos Marques;Flávia Meireles Gombar;Jorge Luiz Alves Pereira;Francisco José Barcellos Sampaio;Cristiane da Fonte Ramos
Journal forensic science international
Year 2010
DOI
10.1590/S0102-86502010000100013
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