Syyt
VitaminAdeficiencycausedbyvariousreasons.Forexample,chronicdiarrhea,liverandgallbladderdisease,albuminreductionisnotenoughtotransportvitaminA,andseverewastingdiseasecausesexcessiveconsumptionofvitaminA,whichcanleadtovitaminAdeficiencysymptoms.VitaminA0.3μgisequivalentto1internationalunit(U).Theminimumdailyrequirementforadultsis20U/kgor40Uβ-carotene.Infact,thedailysupplyforadultsshouldnotbelessthan5000U.
Kliiniset ilmentymät
Patientsshouldeatmoremilk,eggyolks,livers,andcarrotsrichinvegetarianfoodstoactivelytreatthechronicorunderlyingdiseasesdiscovered.OralvitaminAis50,000U/d,andseverecasesare100,000to200,000U/d.Itwillbereducedlater.Long-termlarge-scaleusecancausevitaminAhypertrophy.Ifitiscombinedwithothervitamindeficiencies,itshouldbesupplementedaccordingly.Payattentiontoprotecttheskinlesionsoftheeyesandusecodliveroilointment,10%ureacream,tretinoincream,etc.forexternaluse.
Perinteinen kiinalainen lääketiede
Therapeuticmethod:invigoratethespleenandstomach,nourishbloodandmoisturizetheskin.
Reseptit: Atraktylodesmacrocephala10G, Poriacocos10G, TangerinePeel10G, Lentils10Gangelica10G, RedPeonyRoot10G, Muxiang10G, sekoitus-friedrice30G, sekoitus-friedGorgon15g, SalviA15G, sekoitus-, jne.
Ennaltaehkäisy
ChronicwastingdiseasesandexcessivedrinkingrestrictionsshouldpayattentiontosupplementingvitaminA.
Patogeneesi
VitaminAconstitutestheretinalphotosensitivepigmentrhodopsinandplaysanimportantroleinnightvisionandparticipatesincarbohydratemetabolismandglycoproteinsynthesistomaintainthegrowthanddifferentiationofepithelialtissues.Whenitisdeficient,thelevelsofretinalrhodopsinandopsindecrease,leadingtonightblindness.Scalymetaplasiaofthemucousmembranesoftheeyes,upperrespiratorytractandgastrointestinaltract,causingmucosalkeratosisandhyperkeratosis,resultingindryeye,dryskindesquamation,follicularkeratosis,papulesandaseriesofeyeandskinsymptoms.