分子医学-炎症、感染与相关疾病.pptx

分子医学-炎症、感染与相关疾病.pptx

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分子医学

(MolecularMedicine)

炎症、感染与相关疾病

;Inflammation

Inflammationispartofthecomplexbiologicalresponseofvasculartissuestoharmfulstimuli,suchaspathogens,damagedcells,orirritants.Inflammationisaprotectiveattemptbytheorganismtoremovetheinjuriousstimuliandtoinitiatethehealingprocess.

FourMajorSymptomsofInflammation:

1.Redness

2.Pain

3.Heat

4.Swelling

Mayalsoobserve:

5.Lossoffunction;FunctionsofInflammation

Destroyandremovepathogens(aswellasdamagedselftissuesandcells).

Ifdestructionisnotpossible,tolimiteffectsbyconfiningthepathogenanditsproducts.

Repairandreplacetissuedamagedbypathogenanditsproducts.;;StagesofInflammation

1.Vasodilation:Increaseindiameterofbloodvessels.Triggeredbychemicalsreleasedbydamagedcells:histamine,kinins,prostaglandins,andleukotrienes(组胺,激肽,前列腺素,白三烯).

2.PhagocyteMigrationandMargination:Marginationistheprocessinwhichphagocytessticktoliningofbloodvessels.Diapedesis(Emigration):Phagocytessqueezebetweenendothelialcellsofbloodvesselsandentersurroundingtissue.Phagocytesareattractedtositeofinfectionthroughchemotaxis.Phagocytesdestroymicrobes,aswellasdeadanddamagedhostcells.

3.TissueRepair:Deadanddamagedcellsarereplaced.

;DefinitionofInfectiousDiseases

Alsoknownascommunicablediseases,ortransmissiblediseasescompriseclinicallyevidentillnessresultingfromtheinfection,presenceandgrowthofpathogenicbiologicalagentsinanindividualhostorganism.

;Infection感染;Contents

BriefintroductionofInfectiousDiseases

BacteriainfectionandInnateImmunityagainstbacteriainfection

ViralinfectionandInnateImmunityagainstviralinfection

;BriefintroductionofInfectiousDiseases;Infectiousdiseasesisstillamajorprimarycausesofdeathworldwide;ManyCancersarealsorelatedtoviralinfection;Emergingandre-emerging

infectiousdiseases;ViralEvolut

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