Original Paper:Japan.J.Conserv.Dent. 50 (2) : 140∼145, 2007 柿蔕抽出成分の抗齲蝕効果 2007年 4月 24)KeyesPH,J o r da nHV:Per i o do nt a ll es i o nsi nt heSy r i a n ha ms t er Ⅲ:Fi ndi ngsr el a t edt oa ni nf ec t i o usa ndt r a ns mi s s i b l ec o mpo nent ;Ar c hOr a lBi o l9,377―400,1964. 25)Mi c ha l ek SM,Mc Ghee J R:Vi r ul enc eo fSt r e p t o c o c c us mut ans :An a nt i b i o t i c s uppr es s ed mo de lf o rs t ud i e so f pa t ho genes i s ;JDentRes56,205―211,1977. 26)Keyes PH,Fi t z ger a l d RJ :Dent a lc a r i e si nt he Sy r i a n ha ms t er Ⅸ;Ar c hOr a lBi o l7,267 ―278,1962. 27)Fukus hi maK,Mo t o daR,I k edaT:Ef f ec t so fe x o g e no us i ns o l ub l egl uc a ns ynt hes i sb ySt r e p t o c o c c usmut a ns ;JDe nt 145 Re s60,1707―1712,1981. 28)Ne wb r unE:Ca r i o l o g y ;2nde d ,TheWi l i a msa ndWi l ki ns Co mpa ny ,Ba l t i mo r e ,308―326,1978. 29)To r e l lP ,Er i c s s o nY :2y e a rc l i ni c a lt e s t swi t h di f f er ent me t ho d so fl o c a lc a r i e spr e v e nt i v ef l uo r i nea ppl i c a t i o ni n Swe d i s hs c ho o l c hi l d r e n;Ac t aOd o nt o lSc a nd 23,287― 322,1965. 30)厚生労働省医政局歯科保健課:平成 11年歯科疾患実態調 査報告;第 1版,口腔保健協会,東京,271,2001. I nhi b i t o r yEf f ec t so fDi o s p y r o sKakiThunb .Ext r a c t s o nDent a lCa r i esi nRa t s SUZUKIHi d e a ki ,KONI no r i ,KI s a r u, SHIMi MURAMa * s hi y uki ,SUZUKIMa s a hi r o a ndI a k uj i MORITo KEMIT Depa r t me nto fDent a lCa r i esCo nt r o la ndAe s t he t i cDe nt i s t r y ,Ni ho nUni v e r s i t ySc ho o lo fDe nt i s t r ya tMa t s udo (Chi e f :Pr o f .I a k uj i ) KEMIT * Depa r t me nto fDent Or a lPl a s t i cSur g e r y ,Ni ho nUni v e r s i t ySc ho o lo fDe nt i s t r ya tMa t s ud o (Chi e f :Pr o f .NAKAMURATa k e o ) Abs t r ac t :De nt a lc a r i e sa r ec a us e db ye nd o g e no usi nf e c t i o nwi t hb a c t e r i ar e s i d e nti nt heo r a lc a v i t y .Themut a ns s t r e pt o c o c c ia r eg e ne r a l l ya c c e pt e da st hema i nb a c t e r i ar e s po ns i b l ef o rd e nt a lc a r i e s .Re c e nt l y ,ma nyi nv e s t i g a t o r s ha v er e po r t e de x pe r i me nt a ls t ud i e so fc a r i e spr e v e nt i o nus i ngv a r i o usa nt i b a c t e r i a lpr o d uc t s .Wef o c us e do nDi o s p y r o sKa k iTh unb .e x t r a c t s ,whi c hha v eb e e nus e da sc r ud ed r ug so fpl a nt ss i nc ea nc i e ntt i me si nJ a pa n.Thea i mo f t hi ss t ud ywa st od e t e r mi net hei nhi b i t o r ye f f e c t so fDi o s p y r o sKa k iTh unb .e x t r a c t sa sa na nt i c a r i o g e ni cc ompo ne nt . I nv i v or a tc a r i e se x pe r i me nt swe r epe r f o r me da sf o l l o wsJ CLSpr a g ue Da wl e yr a t swe r ei nf e c t e do r a l l ywi t h St r e p t o c o c c usmut a nsPS14.Af t e rs a c r i f i c e ,t hec a r i e ss c o r e so ft hema nd i b l e swe r ed e t e r mi ne db yt heKe y e s me t ho d .Cr ud eg l uc o s y l t r a ns f e r a s e (GTa s e)wa spr e pa r e df r om S.mut a nsPS14a nda c t i v i t ywa st e s t e db yme a s ur i ngt het o t a la mo unt so fwa t e r i ns o l ub l eg l uc a n (WI G) . Thef o l l o wi ngc o nc l us i o nswe r eo b t a i ne d : 1.As i g ni f i c a nt l yl o we rc a r i e ss c o r ewa so b s e r v e di ns pe c i f i cpa t ho g e nf r e er a t si nf e c t e dwi t hS.mut a nsPS14 a ndf e dwi t hac a r i o g e ni cDi e t2000c o nt a i ni ng0. 05% ur s o l i ca c i do r0. 05% o l e a no l i ca c i da sc ompa r e dwi t hc o nt r o l s f e dt hec a r i o g e ni cDi e t2000wi t ho utDi o s p y r o sKa k iTh unb .e x t r a c t s . 2.Di o s p y r o sKa k iTh unb .e x t r a c t ss ho we da ni nhi b i t o r ye f f e c to nWI Gf o r ma t i o nf r o ms uc r o s eb yc r ud eGTa s eo f S.mut a nsPS14. I nc o nc l us i o n,t her e s ul t so ft he s ei nv i v or a te x pe r i me nt ss ug g e s t e dt ha tDi o s p y r o sKa k iTh unb .e x t r a c t sha v e a nt i b a c t e r i a la c t i v i t ya g a i ns tS.mut a ns . Keywor ds :S.mut a ns ,Ant i c a r i o g e ni c ,Ka kie x t r a c t s
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