<prompt> Amyloid present in cerebral lesions of Alzheimers disease -LAAAbb-microglobulin  <response>: Ans. c Ab Ref. Harrisons medicine 17th ed., Table 324-1Amyloid Fibril Proteins and their PrecursorsAmyloid ProteinPrecursorSystemic S or Localized LSyndrome or Involved TissuesALImmunoglobulin light chainS, LPrimaryMyeloma-associatedAHImmunoglobulin heavy chainS, LPrimaryMyeloma-associatedATTRTransthyretinSFamilialSenile systemic L?TenosynoviumA2M2-microglobulinSL?Hemodialysis, JointsAAAposerum AASSecondary, reactiveAApoAIApolipoprotein AlSLFamilialAorticAApoAIIApolipoprotein AllSFamilialAGelGelsolinSFamilialAlysLysozymeSFamilialAFibFibrinogen -chainSFamilialACysCystatin CSFamilialABriABriPPL, S?Familial dementia, BritishADanADanPPLFamilial dementia, DanishAA protein precursor APPLAlzheimers disease, agingAPrPPrion proteinLSpongiform encephalopathiesACalProcalcitoninLC-cell thyroid tumorsAIAPPIslet amyloid polypeptideLIslets of LangerhansInsulinomasAANFAtrial natriuretic factorLCardiac atriaAProProlactinLAging pituitaryProlactinomasAlnsInsulinLIatrogenicAMedLactadherinLSenile aortic, mediaAkerKerato-epitheliumLCornea; familialAtbntbnbLPindborg tumorsALacLactoferrinLCornea; familial 