Obesity promotes oxidative stress and exacerbates blood-brain barrier disruption after high-intensity exercise

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摘要 Purpose:Thepurposeofthisstudywastoinvestigatetheeffectsofobesityandhigh-intensityacuteexerciseonoxidant-antioxidantstatus,neurotrophicfactorexpression,andblood-brainbarrier(BBB)disruption.Methods:Twenty-fourhealthy,untrainedmen(12non-obese(mean14.9%bodyfat)and12obesesubjects(mean29.8%bodyfat))performed20minofcontinuoussubmaximalaerobicexerciseat85%maximaloxygenconsumption.Bloodsamplingwasperformedtoexaminetheoxidant-antioxidantstatus(reactiveoxygenspecies(ROS)andsuperoxidedismutase(SOD)),neurotrophicfactors(brain-derivedneurotrophicfactor(BDNF)andnervegrowthfactor(NGF)),andBBBdisruption(S100βandneuron-specificenolase)beforeandafteracuteexercise.Results:Theobesegroupshowedsignificantlyhigherpre-exerciseserumROSlevelsandsignificantlylowerpre-exerciseserumSODlevelsthanthenon-obesegroup(p<0.05).SerumROS,SOD,BDNF,NGF,andS100βlevelsweresignificantlyincreasedpost-exercisecomparedwithpre-exerciselevelsinboththenon-obeseandtheobesegroups(p<0.05).TheobesegroupshowedsignificantlyhigherserumROS,BDNF,NGF,andS100βlevelspost-exercisecomparedtothenon-obesegroup(p<0.05).Conclusion:OurstudysuggeststhatepisodicvigorousexercisecanincreaseoxidativestressandbloodneurotrophicfactorlevelsandinducedisruptionoftheBBB.Moreover,highlevelsofneurotrophicfactorinthebloodafterexerciseintheobesegroupmaybeduetoBBBdisruption,anditisassumedthatoxidativestresswasthemaincauseofthisBBBdisruption.
机构地区 不详
出版日期 2017年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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