PROTOSCOLICES ANTIGENS FROM HYDATID CYST OF HUMAN AND ANIMAL ORIGIN FOR DIAGNOSIS OF CYSTIC ECHINOCOCCOSIS | ||||
Journal of the Egyptian Society of Parasitology | ||||
Article 23, Volume 50, Issue 3, December 2020, Page 656-663 PDF (870.26 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jesp.2020.131102 | ||||
View on SCiNiTO | ||||
Authors | ||||
REEM M. RAMADAN1; MARWA M. KHALIFA1; NANCY O. KAMEL2; DALIA A. HAMZA3; AZZA M. ABDEL-WAHAB1; MOHAMED, M. EL-BAHY1 | ||||
1Department of Parasitology, Faculty of Veterinary Medicine, Cairo University | ||||
2Department of Parasitology, Faculty of Medicine, October 6 University | ||||
36th October City, and Department of Zoonoses | ||||
Abstract | ||||
Hydatid cyst (HC) protoscolices somatic antigens (HCPsS-Ag) derived from the HC extracted from patients, sheep; equine and HC antigen purchased with ready-made diagnostic kits were evaluated in diagnosis of zoonotic hydatidosis. The sensitivity and specificity of these antigens in capturing anti-HC-IgG-antibodies (anti-HC-Abs) were measured by ELISA in infected hosts’ sera. Sensitivity of HCPsS-Ag extracted from HC of human origin to diagnose anti-HC-Abs in naturally patients was 90.0%. The sensitivity of HCPsS-Ag extracted from sheep, equine and ready-made diagnostic kits (R.M.K.) were (71.4%; 57.1% & 91.9%) respectively. The median ELISA OD values of positive HC patient samples versus HCPsS-Ag of sheep and equine was significant (P≤0.05) lower than screened same sera versus HCPsS-Ag of human origin. For agreement analysis, Kappa values did show significant difference between human sera versus HC antigen extracted from human or sheep (K= 0.385, P=0.168). Receiver Operating Characteristics (ROC) analysis showed accepted human diagnosis by using human or sheep originated antigens. HCPsS-Ag of human origin showed low cross-reaction with Schistosoma mansoni and Hepatitis C virus, than those of animal origin. | ||||
Keywords | ||||
Hydatidosis; Human; Sheep; Equine; Protoscolices; ELISA | ||||
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