Hazlianda Cut, Muis Kamaliah, Lubis Isma
Universitas Sumatera Utara, Fakultas Kedokteran, Dermatology and Venereology, Medan, Indonesia.
Open Access Maced J Med Sci. 2017 Nov 21;5(7):844-847. doi: 10.3889/oamjms.2017.197. eCollection 2017 Dec 15.
Tinea cruris is the second most common dermatophytosis in the world and the most common in Indonesia. The conventional laboratory tests for dermatophyte infection are slow and less specific. Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) is a PCR method with the addition of enzyme after amplification, therefore enabling for more specific results.
This study aimed to find whether the PCR-RFLP test could yield the same fungal species result as a fungal culture.
The specimens were skin scrapings from thirty-one patients suspected tinea cruris. The tools and materials that were used were Sabaroud's dextrose agar media, primer ITS 1 and ITS 4 and MvaI.
The equation percentage of the test result species between PCR-RFLP and fungal culture was 50% of 12 subjects whose the test results were both positive from the fungal culture and PCR-RFLP. The percentage of the test result with fungal culture the fungal species were found, but in the PCR-RFLP test which the fungal species was not found, the percentage was 50% of 12 subjects which the test results were both positive as fungi from the culture and PCR-RFLP test.
The species from PCR-RFLP examination was the same with the fungal culture.
股癣是世界上第二常见的皮肤癣菌病,在印度尼西亚最为常见。传统的皮肤癣菌感染实验室检测方法耗时且特异性较低。聚合酶链反应-限制性片段长度多态性(PCR-RFLP)是一种在扩增后添加酶的PCR方法,因此能够获得更具特异性的结果。
本研究旨在探究PCR-RFLP检测能否得出与真菌培养相同的真菌种类结果。
标本为31例疑似股癣患者的皮肤刮屑。使用的工具和材料有沙氏葡萄糖琼脂培养基、引物ITS 1和ITS 4以及MvaI。
在12名真菌培养和PCR-RFLP检测结果均为阳性的受试者中,PCR-RFLP与真菌培养检测结果物种的符合率为50%。在12名真菌培养检测出真菌种类但PCR-RFLP检测未发现真菌种类的受试者中,该比例为50%,这些受试者的真菌培养和PCR-RFLP检测结果均为阳性。
PCR-RFLP检测出的真菌种类与真菌培养结果相同。