疱疹病毒2IgM(HSV 2-IgM)
意大利进口TORCH试剂
测IgM为较受推崇的抗体捕获法,测IgG为6点定标的定量间接法,总准确率可达到98~100%
不同品种操作完全一致,已稀释样本可多项检测
样本温育只需45分钟(在同类产品中时间最短)
全部操作流程只需2~3小时(取决于样本量),即使开展全部8项检测亦可在半个工作日内轻松完成
底物为单一底物液,简化操作,减少误差
稀释液、洗涤液、底物液、终止液均可通用
试剂及包装均有颜色标记,减少操作失误
单纯疱疹病毒2型IgM抗体HSV 2-IgM
酶联免疫吸附测定法(ELISA)试剂盒
捕获法
用途
单纯疱疹病毒2型IgM抗体HSV 2-IgM酶联免疫吸附测定法(ELISA)试剂盒用于体外半定量检测人血清中的HSV 2 IgM抗体,并辅助诊断疱疹相关性疾病。高度复杂的检测。
1. 引言
在全世界范围内都存在人类的单纯疱疹病毒(HSV)感染。HSV感染的临床病程差异很大,而大多数病例为症状轻微的隐性感染(通常不能察觉)。临床征象明显的HSV感染表现不一,既可为轻微的咽炎,又可为致死性的严重泛发性疾病。与HSV感染有关的主要临床疾病为龈口炎、角膜炎、结膜炎、皮肤疱疹、无菌性脑膜炎、脑炎、生殖道感染以及新生儿疱疹。新生儿感染可局限在皮肤,或者泛发,严重累及中枢神经系统、眼、皮肤以及其他器官。
单纯疱疹病毒有两种类型,它们在形态学上无法区分,而且约40%的DNA碱基序列相同,有许多共同抗原,可产生相同的皮肤和粘膜病变。可通过其抗原、生物学、生物化学以及临床和流行病学行为的差别来区分这两种类型的病毒。HSV 2通过性传播,或由母亲的生殖器感染传递给新生儿。它可导致大多数生殖器疱疹、新生儿疱疹以及腰部以下的皮肤感染。HSV 1主要通过非性途径来传播,通常是由于接触了感染者的唾液而受到传染。除新生儿疱疹之外,儿童时期的大多数HSV感染均是由HSV 1引致的。性行为是HSV 2感染传播的途径,因此在开始性行为之前,很少发生HSV 2感染(1,2,3,4,5,6)。
大多数人在20岁之前就已感染过HSV(7,8)。因此,任何血清学方法检测到的血清中抗HSV抗体均不能提示感染的时间,除非进行特异性IgM抗体检测。HSV初次感染之后,抗体水平逐渐下降至较低或检测不到的水平,以后如果发生同一类型或不同类型的临床感染,抗体会受到刺激而再次抬升。
初次感染是针对以前未感染过HSV 1或HSV 2的个体而言。已经知道,过去感染过HSV 1并不能保护该个体不会受到HSV 2的感染;然而,如果以前曾感染过HSV 1,而后又发生了HSV 2感染,这类患者的临床表现会有所减轻(7)。
2. 参考文献
1. Oxman, M.N., D.D. Richman & S.A. Spector. 1982. Management at delivery of mother and infant when herpes simplex, varicella zoster, hepatitis, or tuberculosis have occurred during
pregnancy. In: Current Clinical Topics in Infectious Diseases: pp 224-280
2. Nahmias, A.J., & W.E. Josey. 1982. Herpes simplex viruses 1 and 2. In: Viral Infections of Humans, Evans, A.S. ed. 2 nd Edition. New York: Plenum Press: p 351
3. Centers for Disease Control. Genital herpes infection - United States, 1966-1979. 1982. Morbid Mortal. Wkly Rep. 31:11.
4. Gardner, H.I. 1979. Herpes genitalis: Our most important venereal disease. Am. J. Obstet. Gynecol. 135: 553
5. Bolognese, R.J., et al. 1976. Herpesvirus hominis type II infections in asymptomatic pregnant women. Obstet. Gynecol. 48: 507
6. Sumaya, C.V., et al. 1980. Genital infections with herpes simplex virus in a university student population. Sex Trans. Dis. 7:16
7. Stewart, J.A., & K.L. Herrmann. 1986. Herpes Simplex Virus. In: Manual of Clinical Laboratory Immunology. Rose, N.R., Friedman, H., Fahey, J.L., eds. 3rd Edition. Wash, D.C. ASM. pp 497-501.
8. Rawls, W.E., & J. Campione-Piccardo. 1981. Epidemiology of herpes simplex virus type 1 and 2 infections. In: The human herpesviruses: an interdisciplinary perspective. Nahmias, A.J., Dowdle, W.R., and Schinazi, R.F., eds. New York: Elsevier: pp137-152.
9.National Committee for Clinical Laboratory Standards. 1990. Procedures for the Collection of Diagnostic Blood Specimens by Venipuncture Approved Standard. NCCLS Publication H18-A.
10. NCCLS. 1991. National Committee for Clinical Laboratory Standard. Internal Quality Control Testing: Principles & Definition. NCCLS Publication C24- A.
11. Engvall, E., K. Jonsson, and P. Perlman. 1971. Enzyme-Linked Immunosorbent Assay, (ELISA) Quantitative Assay of Immunoglobulin G. Immunochemistry. 8:871-874.
12. Engvall, E. and P. Perlman. 1971. Enzyme-Linked Immunosorbent Assay, ELISA. In: Protides of the Biological Fluids. H. Peeters, ed. Proceedings of the Nineteenth Colloquium, Brugge Oxford. Pergamon Press. pp 553-556.
13. Engvall, E., K. Jonsson, and P. Perlman. 1971. Enzyme-Linked Immunosorbent Assay. II. Quantitative Assay of Protein Antigen, Immunoglobulin-G, By Means of Enzyme- Labelled Antigen and Antibody-Coated tubes. Biochem. Biophys. Acta. 251: 427- 434.
14. Van Weeman, B. K. and A.H.W.M. Schuurs. 1971. Immunoassay Using Antigen-Enzyme Conjugates. FEBS Letter. 15:232-235.
15. CDC/NIH Interagency Working Group. 1993. Biosafety in Microbiological and Biomedical Laboratories. 3rd Edition. U. S. Dept. of Health and Human Services, Public Health Service. pp18-24.
16. http://www.cap.org/html/ftpdirectory/checklistftp.html. 1998. Laboratory General - CAP (College of American Pathology) Checklist (April 1998). pp 28-32.
17. NCCLS. 1997. National Committee for Clinical Laboratory Standard. Preparation and Testing of Reagent Water in the Clinical Laboratory. NCCLS Publication C3- A3.