Yünlü Önder, Özçelik Semra, Arıcı Mustafa Kemal
Cumhuriyet Üniversitesi, Tıp Fakültesi Parazitoloji Anabilim Dalı, Sivas, Türkiye.
Turkiye Parazitol Derg. 2015 Sep;39(3):194-9. doi: 10.5152/tpd.2015.4119.
In the study, it is aimed to determine the prevalence of Acanthamoeba and other free-living amoeba (FLA) species in the swab samples obtained from conjunctiva and lower eye lid.
For this purpose, swab samples from the 500 patients'eye lid and conjunctiva were obtained who admitted to Cumhuriyet University, Research and Application Hospital, Department of Ophthalmology with variety of reasons. Swab samples were carried out using sterile cotton swab in steril tubes. The swab samples were inoculated onto non-nutrient agar (NNA). Live Escherichia coli was used as food source for the growth of the FLA. The NNA plates were incubated at 300C and examined daily using ligth microscope for two weeks. For morphotyping of the trophozoites and cysts of the FLA were used taxonomic keys.
Two of the 500 swab samples (0.4%) were positive for FLA. One of them (0.2%) were identified as Acanthamoeba spp. and other was identified as Hartmannella spp. However, these patients did not reveal any complaints yet.
FLA both themselves and bacteria carrying in their body as reservoirs are potential pathogen. The rapid spread of Acanthamoeba keratitis in recent years reveal that these microorganisms are in contact with the eyes.
本研究旨在确定从结膜和下眼睑获取的拭子样本中棘阿米巴及其他自由生活阿米巴(FLA)物种的流行情况。
为此,从因各种原因入住居米什尔耶特大学研究与应用医院眼科的500名患者的眼睑和结膜获取拭子样本。使用无菌棉拭子在无菌试管中采集拭子样本。将拭子样本接种到非营养琼脂(NNA)上。活的大肠杆菌用作FLA生长的食物来源。将NNA平板在30℃下培养,连续两周每天使用光学显微镜进行检查。使用分类学关键特征对FLA的滋养体和包囊进行形态分型。
500份拭子样本中有两份(0.4%)FLA呈阳性。其中一份(0.2%)被鉴定为棘阿米巴属,另一份被鉴定为哈特曼阿米巴属。然而,这些患者尚未出现任何症状。
FLA本身及其体内携带的细菌作为储存宿主都是潜在病原体。近年来棘阿米巴角膜炎的迅速传播表明这些微生物与眼睛有接触。