PCR AMPLICON RESTRICTION-ENDONUCLEASE ANALYSIS OF THE CHROMOSOMAL DHPS GENE OF NEISSERIA-MENINGITIDIS - A METHOD, FOR STUDYING SPREAD OF THE DISEASE-CAUSING STRAIN IN CONTACTS OF PATIENTS WITH MENINGOCOCCAL DISEASE

被引:17
作者
KRISTIANSEN, BE
FERMER, C
JENKINS, A
ASK, E
SWEDBERG, G
SKOLD, O
机构
[1] UNIV TROMSO,DEPT MED MICROBIOL,N-9037 TROMSO,NORWAY
[2] UNIV UPPSALA,CTR BIOMED,DEPT PHARMACEUT BIOSCI,DIV MICROBIOL,S-75123 UPPSALA,SWEDEN
关键词
D O I
10.1128/JCM.33.5.1174-1179.1995
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
We tested two sets of primers derived from the dhps gene of Neisseria meningitidis for the amplification of meningococcal DNA by PCR, Both the NM1-NM6 primers and the NM3-NM6 primers amplified dhps DNA from all of the meningococci included in the study, resulting, in most cases, in amplicons of 0.70 and 0.23 kb, respectively. Also, dhps DNAs of N. gonorrhoeae and some commensals were amplified but Haemophilus influenzae, Streptococcus pneumoniae, and Escherichia coli DNAs were not. By PCR amplicon restriction endonuclease analysis (AREA) of the larger amplicon, we could differentiate between individual strains of N. meningitidis, Following two cases of meningococcal disease, we used PCR AREA to identify healthy contacts carrying the disease-causing strain, We conclude that PCR AREA is a useful method for meningococcal strain differentiation and that it has potential as a method for studying the spread of a disease-causing strain in an affected population. The method is quicker and easier to perform and interpret than chromosomal DNA fingerprinting.
引用
收藏
页码:1174 / 1179
页数:6
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