营养性贫血英文.pptx
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1、 NUTRITIONAL IRON DEFICIENCY ANEMIAJie Yu MD.ProfessorThe Department of Pediatrics Hematology/Oncology,Childrens HospitalCONTENTSINDUCTIONIRON METABOLISMETIOLOGY/PATHOGENESISMANIFESTATIONSLABORATORY FINDINGSDIAGNOSIS&DIFFERENTIAL PREVENTION&TREATMENTINTRODUCTIONDefinition/describingThe anemia caused
2、 by insufficient dietary iron uptake,in which the iron storage and hemoglobin synthesis decreased.HEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALClinical characteristics iron stores serum iron hemoglobin concentration,hypochromic microcytic anemia,good response to iron therapy.6mo to 3 yrs.Incidence INTRODUC
3、TIONHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALIRON METABOLISMCONTENTSNew born 75mg/kgChildren35-70mg/kgAdults M 50mg/kgF 35mg/kgCMOPARTMENTHemoglobin 64%Storage iron 30%ferritinhemosiderinMyloglobin 3%Enzyme iron 0.4%Serum iron 0.4%HEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALIron sourcesHemoglobin iron Dietar
4、y ironHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALIRON METABOLISMDietary ironHigh in ironRed meat/liver kidney/oily fish Average ironBeans/fortified cereals/dark green vegetables/dried fruit/nuts and seedsPoor in iron milkHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALIRON METABOLISMIron absorption general absorpt
5、ion1-20%Meat/fish/chicken10-25%Cereals/vegetables1%Breast/cows milk50%/10%HEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALIRON METABOLISMABSORPTION&TRANSPORT HemoglobinironnonhemoglobinirongastricjuiceproteinaseproteolyticHClhemeferric hemolytic ferricreductase *VitC ferrousduodenumupperjujenumferricmucosalce
6、llstransferrin*circulation GItract liver/spleenmarrow(fig2)HEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALFerritinFeTfRtransferritinFeFeIRON METABOLISMMucouscellsIRON METABOLISMIron stores and utilizingLiverSpleenMarrowRBCironFoodironSIFeFeheme+globin(fig2)HbFeFemarrowHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALIR
7、ON METABOLISMRequirement and excretion demand excretionadults1mg/d 1mg/d 1mg/d 4mo-3yr 1mg/kg (15ug/kg/d)premature 2mg/kgHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITAL ETIOLOGY&PATHOGENESISETIOLOGYPoor iron storesPoor dietary intake of iron*OverdevelopChronic bleedingPo
8、or iron storesPremature birthMultiple birth/Low weight birthCord bloodMother iron reserve overdevelopPoor dietary intake of iron*Blood loss and iron depletionHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITAL ETIOLOGY&PATHOGENESISPoor iron storesPoor dietary intake of iron*Milk and cerealsFactors influencing ab
9、sorptionDiarrhea and infection OverdevelopBlood loss and iron depletionHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITAL ETIOLOGY&PATHOGENESIS ETIOLOGY&PATHOGENESISPoor iron storesPoor dietary intake of iron*Overdevelop3-5mo/1yrPremature birthPuberty Chronic bleedingHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITAL ETIOL
10、OGY&PATHOGENESISPoor iron storesoverdevelopPoor dietary intake of iron*Chronic bleedingCows milkHookworm infectionMenstruating Others:HEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALPathogenesisiron +protoporphyrin IDA heme+globins hemoglobinHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALETIOLOGY&PATHOGENESISPathogene
11、sisHypochromic/microcytic anemiaID.Iron deficiencyIDE.Iron deficiency erythropoiesisIDA.Iron deficiency anemiaEnzymesImmune function Skin/mucosalHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALETIOLOGY&PATHOGENESISFeatures AgeThe onset of the IDAThe degree of anemiaHEMATOLOGY/ONCOLOGY,CHILDRENS HOSPITALCLINIC
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- 关 键 词:
- 营养 性贫血 英文
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