傳統上認為，肥胖是人體攝入高熱量食物與能量消耗對比的結果。
研究表明：一些持久性有機污染物的累計水平程度與個人的肥胖、血清膽固醇和甘油三酯有關，不論性別、年齡、居住地或者吸煙情況。
這篇研究分析了近名男性和女性脂肪組織中的污染物積累程度。通過物質的分析，這些污染物被稱為有機持久性污染物，可以在環境中保存多年，甚至幾十年也不會退化掉。人類主要通過飲食暴露於這些污染物中，持久性的有機污染物在人體的脂肪中逐漸積累。
此次研究中，持久性有機污染物分析包括：
DDE，殺蟲劑DDT的主要代謝物，在年代被廣泛的使用，目前DDE被一些國家用來對抗瘧疾。
殺蟲劑林丹，在過去經常用在農業當中，治療蝨子和疥瘡。
多氯聯苯，用於許多工業設備，以及一些仍然存在的舊變壓器當中。
所有的這些污染物都與肥胖的指標相關，以及與膽固醇或甘油三酯的水平相關。研究員Arrebola博士表示：「有機污染物積累水平較高的人群定量為更肥胖人群，同時他們也呈現出較高水平的膽固醇和甘油三酯，這些都被視為重要的心血管疾病的危險因素。儘管這些關係是複雜的，它們也並不是總呈現為線性模式。」
英文原文：
Levelofpollutantsaccumulatedinthebodylinkedtoobesitylevels
ThisisastudypublishedinthejournalEnvironmentalPollution,includedresearchersfromtheUniversityofGranada,theSanCecilioandVirgendelasNievesuniversityhospitals,andtheAndalusianSchoolofPublicHealth,allofthemmembersoftheGranadaBiohealthResearchInstitute.
Thisresearchhasanalysedthelevelsofpollutantsaccumulatedinadiposetissue(fat)innearlymenandwomen,whowereattendedinthesurgeryservicesoftwohospitalsintheprovinceofGranada(Spain).
Thesubstancesanalysed,knownaspersistentorganicpollutants(POPs),canremainintheenvironmentforyears,evendecades,withoutdegrading.
"HumansareexposedtoPOPsmainlythroughdiet.Besides,POPsaccumulategraduallyinbodyfat,andthisisthereasonwhythemedianlevelsinourstudygiveusanideaofanindividualsaccumulatedexpositionoveranumberofyears,"saysJuanPedroArrebola,themainauthorofthearticle.
Using "IngeneralwefoundthatpeoplewithhigherlevelsofPOPswerequantitativelymoreobese,andalsoshowedhigherlevelsofcholesterolandtriglycerides,allofthemregardedasimportantriskfactorsforcardiovasculardisease,althoughtheserelationswere POPssubjecttoanalysis
ThosePOPssubjecttoanalysisincludeDDE,themainmetaboliteofpesticideDDT,widelyusedallovertheworldinthes,andcurrentlyemployedbysomecountriesto ThesurveyalsoincludedagroupofpolychlorinatedbiphenylsorPCBs,usedinnumerousindustrialequipment,andwhicharestillpresentinoldelectrictransformers.Allthesepollutantsweresomehowassociatedwithobesityindexes,aswellascholesteroland/ortriglycerideslevels.
Inspiteofthefactthattheiruseiscurrentlyveryrestricted,POPsareaveryseriouspublichealthproblem.Actually,%ofparticipantsinthissurveypresenteddetectablelevelsofoneormoreofthese "Thisuniversal[exposure]turnstheirimpactonhumanhealthintoamostimportantissue.Besides,ourresultssuggestthattherearenosafeexposurelevelsforthesepollutants,whichcanalsointeractamongthemtoaffecthealth,"Arrebolaadded.
PreviousstudieshavedemonstratedthatthegeneralpopulationisexposedtoPOPsmainlythroughfoodwithahighfatcontent.Thisincludesfishandmeatfromlargeanimalswithahighleveloffat.Thisisthereasonwhyagrowingnumberofresearchersre DoctorArrebolasresearchgroupiscurrentlymonitoringthesubjectsoftheirstudyoverthecourseofseveralyears,toconfirmwhetherthosesubjectsexposedhaveshownahigherriskofdevelopingcertainpathologies,suchashighbloodpressure,obesity,orcardiovasculardisease.
"Obesity-genic"Pollutants
Obesityhasbe Ithasbeentraditionallythoughtthatobesityresultsfromahighcaloricintakein TheabovestoryisbasedonmaterialsprovidedbyUniversityofGranada.Note:Materialsmaybeeditedforcontentandlength.
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