The analysis of identification for non-tuberculous Mycobacterium with molecular assay genotype Mvcobacterium kit / 中华微生物学和免疫学杂志

Objective To identify non-tuberculous Mycobacterium(NTM) rapidly with HAIN molecular assay genotype Mycobacterium kit,and investigate the advantages and disadvantages of this method.Methods Seventy-four clinical NTM isolates were collected from hospitals in Zhejiang and Anhui province.Clinical strains were identified with HAIN molecular assay genotype Mycobacterium kit.16S rRNA gene sequencing was used to estimate and compare with this method.Results The results of kit showed that there were thirty-one M.intracellulare strains,twelve M.chelonae strains,eight M.fortuitum strains,six M.kansasii strains,five M.avium strains,three M.smegmatis strains,two M.phlei strains,two M.scrofulaceum strains and one M.gordon strain.Four strains were identified as Mycobacterium without further identification.Eight M.tuberculosis strains were identified correctly too.Compared with 16S rRNA gene sequencing,except for four strains identified as Mycobacterium,others 70 strains got the same results as 16S rRNA gene sequencing,the coincidence was 94.59％,and it could further identify thirteen Mycobacterium chelonae complex and eight Mycobacterium kansasii complex to subspecies M.abscessus and M.kansasii,respectively.If only to identify strains under the identification range of this kit,the coincidence reach to 100％,Conclusion The method of HAIN molecular assay genotype Mycobacterium kit is simple and accurate,the time is shorter and should widely be applied clinically.

The evaluation of different molecular methods for rapid identification of non-tuberculous Mycobacterium / 中华检验医学杂志

Objective To evaluate three molecular methods for rapid identification of nontuberculous Mycobacterium(NTM).Methods Forty-one clinical NTM isolates were collected and 16S rRNA gene sequencing was used as the standard method for NTM identification.Meanwhile,the restriction fragment length polymorphism of hsp65 PCR-RFLP and hsp65 gene sequencing were used to identify NTM strains and compared with 16S rRNA gene sequencing.Results The results of 16S rRNA sequencing showed that there were nine Mycobacterium chelonae complex strains,seven Mycobacteriumfortuitum strains,seven Mycobacterium intracellulare strains,three Mycobacterium avium strains,three Mycobacterium kansasii complex strains, three Mycobacterium smegmatis strains, three Mycobacterium terrae strains, two Mycobacterium phlei strains,two Mycobacterium nonchromogenicum strains,one Mycobacterium scrofulaceum strain and one Mycobacterium arupense strain.Compared with 16S rRNA gene sequencing,hsp65 PCR-RFLP could identify nine Mycobacterium chelonae complexes and three Mycobacterium kansasii complexes to subspecies Mycobacterium abscessus and Mycobacterium kansasii,respectively; One Mycobacterium fortuitum strain and one Mycobacterium nonchromogenicum strain were different from 16S rRNA gene sequencing results ,but other isolates were the same.The coincidence was 95.1%.By hsp65 gene sequencing,only one identification of Mycobacterium hiberniae strain was different from 16S rRNA gene sequencing and the coincidence was 97.6%.And hsp65 gene sequencing could further identify nine Mycobacterium chelonae complexes and three Mycobacterium kansasii complexes to subspecies Mycobacterium abscessus and Mycobacterium kansasii,respectively.Conclusions All three molecular methods can identify NTM strains rapidly.Compared with 16S rRNA gene sequencing,hsp65 gene sequencing and hsp65 PCR-RFLP are easier to identify clinical common NTM strains(such as Mycobacterium kansasii and Mycobacterium abscessus),and can be widely used in clinical practice.

The establishment and application of network human sperm bank management information system / 中华男科学杂志

<p><b>OBJECTIVE</b>To build network human sperm bank management information system.</p><p><b>METHODS</b>The system was developed with SQL Server 2000 and Power Builders 8.0.</p><p><b>RESULTS</b>The system consisted of 4 modules: file management, physical check-up and laboratory examination management, sperm examination and freezing management, supply and follows-up management. The system worked by long-distance transmission and real time supervision.</p><p><b>CONCLUSION</b>The system possesses the advantages of huge information content, great safety and high confidentiality, as well as the functions of long-distance transmission and real time supervision.</p>