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间接免疫荧光法筛查抗核抗体与特异性抗体检测的相互关系


cases(25.02%)were IIF—ANA一/UA—ANAs—and 206 cases(10.17%)were IIF-
rate
ANA一/UA.ANAs+.The overall compliance
rate
of IIF—ANA and UA—ANA w踮68.56%,t}le consistency
例;男425例,年龄范围l一90岁,平均年龄(44±
18)岁,女l 60l例,年龄7~93岁,平均年龄
全自动化、标准化,因此国内外很多实验室直接采用
对象和方法
对象
收集2009年5月至2010年5月北京协和医院门 诊和住院申请ANA谱检测的标本2 026份(已排除重 复送检标本),其中住院患者527例,门诊患者l
499
自动化程度较高的ANAs特异性抗检测来取代ANA 的IIF检测。在临床工作中,笔者发现IIF检测ANA
2 026份标本分为自身免疫性疾病(autoimmune
i咖u∞as融y,uA)检测ANAs特异性抗体,将
disea靶8,AlD)组、疑似AID组、非AID组,分析检测结果的相互关系和临
床意义。结果2 026份标本中,llF阳性/UA阳性882份,占43.53%;IIF阳性/UA阴性266份,占13.13%;IIF阴性/
(Dep叫m朋£of
ftheu砌fology鲫d Cljfli浏Im舢nology。Peking
Medical
Science8&Peking union Medical
Union
Medi浏ColIe鲈H佣Pit且I,Chin雠A蒯emy of
100032。Chi弛)
College,Beijing
objective
autoimmune
diseases, it is recommend
test
ANA bv IIF and detect ANA gpecific瓯tibodies simultaneously when the ANA
presence Key

is
needed
t0
excluded the
of autoimmune diseases.
B),粕ti・nRNP/Sm(nuclear
ribonuckoproteill/Smith antigen)and anti—Jo—l(Jo一1 antigen)aIltibodies IIallged fmm 6.00%t0 34.94%
in
t}le IIF—ANA一/UA-ANAs“2 group.Of the 312
cl撕fy
whether they could replace each
other in clinical pmctice.
△基金项目:国家自然科学基金(30640084、3∞7233I、81072486).国家十一五科技支撑计划(2008BA巧9脱、2008BAl59∞3),北京协和医院青
年基金(1101430).威海市科技发展计划(2008093.8);・浙江省台州医院检验科.浙江台州317000;・・山东省威海市文登中心医院检验科.山东
line immunoassaY(LIA)f-or tlle detection of specific ANA antibodies.All tIIe
s舢ples
Of t|le
were
divided into
卸toimmune diseases(AID)gmup,suspected di瞻renltest results and
意义的ANA特异性抗体漏检,而ANA特异性抗体检测因其测定的抗体数量有限也容易导致AlD患者的ANA漏检。IlF- ANA筛查和UA.ANA8特异性抗体检测不能相互代替,对需要通过检测ANA来排除AlD的患者标本应同时进行IIF-ANA筛
查和ANAs特异性抗体的检测,以避免仅采用1种方法进行检测时导致的AID患者漏诊。 关键词:间接免疫荧光法;抗核抗体;免疫印迹法;敏感性;特异性 中图分类号:R446.6;R593.2 文献标志码:A 文章编号:1673{705(2011)03旬179J0r7
ReIatioI珏hip between Anti-nuclear Antibodies and the Detection of Specinc Anti-nuclear Antibodies△
HU Chao.jun,U Jun‘,ZHANG Da0一qiang“,ZHANG Shu—l肌,U Li-jun, DONG Xiao_ju蛐,ZHANG Feng-chun,U Yong-zlIe。
It
AID,higher th锄t}le
higher th粕non—AID in each昱,oup
aJld≥1:640(r=26.96,7.89,19.42,P<o.01).
specific antibodies which has
has

tendency
to
miss some
ANAs
impon舳t clinical
w8s
was
moderate(K=0.472,P<O.01),and£11ere
sjgn洒cant
rates
diⅡ蕊nce
between t王le results of IIF—
ANA and UA.ANA(疋2=416.21,P<O.01).The positive syndrome antigen
摘要:目的分析以间接免疫荧光法(indinect immunonuo陀8ce眦e,lIF)筛查的大样本抗核抗体(蚰tinucle盯蚰tibody,
ANA)结果与特异性抗体检测结果的相互关系,以确定其临床意义及临床实践中二者是否能够相互代替。方法采用IIF 筛查2 026份临床连续送检血清标本的ANA,采用线性免疫印迹法(1ine
words:iIIdil.ec“衄帅onuorescence;锄ti-nucle盯明tibody;IilIe i咖岫∞s钮y;辩璐itivity;叩ecific畸
踟l
抗核抗体(卸ti.nuclear粕tibody,ANA)检测在自 身免疫性疾病(粕toimmune diseases,AID)诊疗过程 中的地位无可替代…。间接免疫荧光法(indirect
signi6c蚰ce when ANA w酗screened only by IIF,where酗the detection of ANA specific arItibodies is very
limited,it is also very easy
to
lead
t0
f址se negatiVe in patients with autoimmune diseases.The screening of
uA阴性507份。占25.02%,IIF阴性/uA阳性206份,占10.17%。IlF与uA检测ANA的结果总体符合率为68.56%(K =o.472,P<o.01),2种方法检测结果的差异有统计学意义(,=416.2l,P<o.01)。IIF阴性/uA非阴性组中,抗Ro. 52、抗干燥综合征抗原A(ss.A)、抗双链DNA(dsDNA)、抗线粒体抗体M2亚型(AMA—M2)、抗史密斯抗原(sm)、抗干 燥综合征抗原B(sS.B)、抗核糖核蛋白/史密斯抗原(nRNP/sm)和抗组氨酰tRNA合成酶抗原(Jo・1)抗体的阳性率分别 为6.00%一34.94%;IIF阴性/uA非阴性的312例患者中,AID患者116例,占37.18%,高于非AID患者(22.11%),且
imInunonuoresc明ce,lIF)是检测ANA最重要的方法,
J删哪}y C矗n,m舢越,201l,5(3):179.185
结果与ANAs的特异性抗体检测结果并不完全符合。 因此,本研究探讨ANA的IIF检测结果与ANAs特异 性抗体检测结果问的相互关系及2种检测方法是否可 以相互代替,以明确IIF检测ANA和ANAs特异性抗 体检测在l临床诊疗工作中的实际意义。
t11eir
AID group
aJld non—AID group.The relationship beMeen Reslllts

clinical sigIlific锄ce were allalyzed.
026
cases
of
specimens,882 c鹊es(43.53%)were IIF—ANA+/UA.ANAs+,266 cases(13.13%)were IIF—ANA+/ UA.ANAs一。507
not
ANA by IIF and cbe de£ec£ion of ANA specjfic antjbodies by UA c叫ld
practice. In
replace each olher jn cJjnicaJ
to screen
order
to
avoid misdiagnosis of patients with
cases
of
this乎Dup,37.18%patients(116 cases)were
the 325
cases
diagnosed嬲AID,higher than the non—AID
gmup(22.11%)∽=16.97,P<o.01).0f
as was
of IIF—ANA+/UA-ANAs-/’group,48.O%of patients(156 cases)were diagnosed non—AID group(22.15%),and the proportion of patients with AID of patients wim IIF.ANA titer 1:80,1:160一1:320 Conch晦iOns
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