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（每日一读）高考英语考前突破 阅读理解能力 文化教育 营养不良影响肠健康素材 .doc

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营养不良影响肠健康Childmalnutritionhaslong-termeffectsonguthealththataffectdevelopmentevenaftertreatmentastudysuggests.研究发现儿童营养不良对肠健康有长期影响即使经过治疗也会影响生长发育。AteamstudiedtheguthealthofmalnourishedchildreninBangladesh.WritinginthejournalNaturetheysaidthebacterialmake-upwasnotfullyrestoredtonormalafterfoodsupplementsweregiven.Theysaythefindingmightexplainwhychildrenoftenfailtogrownormallyevenaftertreatment.TheWorldHealthOrganizationestimatessevereacutemalnutritionaffectsabout20millionchildrenworldwide.ModerateacutemalnutritionalessseriousformofthediseaseismoreprevalentinSouthCentralAsiawhereitaffects30millionchildren.InBangladeshmorethan40%ofchildrenunderfiveareaffectedbystuntedgrowth.Stuntedgrowth"Friendly"gutmicrobesplayacrucialroleinextractingandusingnutrientsinfood.Ithasbeensuggestedthatmalnutritiondamagesthisprocess.Childhoodmalnutritioncanleadtolong-termproblemssuchasstuntedgrowth（生长萎缩）cognitiveproblemsandweakenedimmunesystems.InthisstudyateamatWashingtonUniversitySchoolofMedicineStLouisandtheInternationalCentreforDiarrhoealDiseaseResearchinDhakatheBangladeshicapitalassessed64malnourishedchildrenagedfromsixto20months.MalnourishedchildrenwereeithergivenPlumpy'Nutanenrichedpeanut-basedfoodthatisthemainstay（支柱）treatmentforseveremalnutritionworldwideorKhichuri-HalwawhichisproducedinBangladeshandhasriceandlentils（扁豆）asitsmainingredients.Bothtypesoffoodincludemilkpowderandmicronutrientssuchasiron.Theresearcherstookfaecalsamplesfromthechildrenbeforetheyweregiventhefoodsandeverythreedayswhiletheywerebeingtreatedwhichusuallylastedforaroundtwoweeksstoppingwhentheyreachedacertainweight.Sampleswerethentakeneverymonthforfourmonths.