求一篇医学相关英语作文在线等字数150左右
Diabetesmellitus,oftensimplyreferredtoasdiabetes—isagroupofmetabolicdiseasesinwhichapersonhashighbloodsugar,eitherbecausethebodydoesnotproduceenoughinsulin,orbecausecellsdonotrespondtotheinsulinthatisproduced.Thishighbloodsugarproducestheclassicalsymptomsofpolyuria(frequenturination),polydipsia(increasedthirst)andpolyphagia(increasedhunger).
Therearethreemaintypesofdiabetes:
1.Type1diabetes:resultsfromthebody'sfailuretoproduceinsulin,andpresentlyrequiresthepersontoinjectinsulin.(Alsoreferredtoasinsulin-dependentdiabetesmellitus,IDDMforshort,andjuvenilediabetes.)
2.Type2diabetes:resultsfrominsulinresistance,aconditioninwhichcellsfailtouseinsulinproperly,sometimescombinedwithanabsoluteinsulindeficiency.(Formerlyreferredtoasnon-insulin-dependentdiabetesmellitus,NIDDMforshort,andadult-onsetdiabetes.)
3.Gestationaldiabetes:iswhenpregnantwomen,whohaveneverhaddiabetesbefore,haveahighbloodglucoselevelduringpregnancy.Itmayprecededevelopmentoftype2DM.
Otherformsofdiabetesmellitusincludecongenitaldiabetes,whichisduetogeneticdefectsofinsulinsecretion,cysticfibrosis-relateddiabetes,steroiddiabetesinducedbyhighdosesofglucocorticoids,andseveralformsofmonogenicdiabetes.
这是讲糖尿病的,goodluck
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