Fadl, H., El Bassiouni, S., El Bolaky, H., Sabry, D., El Akkad, D. (2022). Assessment of Protease Enzymatic Activity Among Symptomatic Blastocystosis Patients. test, 14(2), 39-47. doi: 10.21608/eajbse.2022.259102
Hanaa O. Fadl; Safeya O. El Bassiouni; Hoda A. El Bolaky; Dina Sabry; Dina M.H. El Akkad. "Assessment of Protease Enzymatic Activity Among Symptomatic Blastocystosis Patients". test, 14, 2, 2022, 39-47. doi: 10.21608/eajbse.2022.259102
Fadl, H., El Bassiouni, S., El Bolaky, H., Sabry, D., El Akkad, D. (2022). 'Assessment of Protease Enzymatic Activity Among Symptomatic Blastocystosis Patients', test, 14(2), pp. 39-47. doi: 10.21608/eajbse.2022.259102
Fadl, H., El Bassiouni, S., El Bolaky, H., Sabry, D., El Akkad, D. Assessment of Protease Enzymatic Activity Among Symptomatic Blastocystosis Patients. test, 2022; 14(2): 39-47. doi: 10.21608/eajbse.2022.259102

Assessment of Protease Enzymatic Activity Among Symptomatic Blastocystosis Patients

Egyptian Academic Journal of Biological Sciences, E. Medical Entomology & Parasitology
Article 5, Volume 14, Issue 2, December 2022, Pages 39-47    PDF (493.46 K)
Document Type: Original Article
DOI: 10.21608/eajbse.2022.259102
Authors
Hanaa O. Fadl1; Safeya O. El Bassiouni1; Hoda A. El Bolaky1; Dina Sabry2; Dina M.H. El Akkad1
1Department of Medical Parasitology, Faculty of Medicine, Cairo University
2-Department of Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University - Department of Biochemistry and Molecular Biology, Faculty of Medicine, Badr University
Abstract
Blastocystis is the most common eukaryotic parasite of the human gastrointestinal tract. Its pathogenicity remains a matter of debate, however, many recent studies suggest that this organism is a pathogen. Some authors reported that cysteine protease plays important role in the pathogenicity of Blastocystis spp. The study investigated the protease activity of Blastocystis isolates obtained from stool samples of symptomatic and asymptomatic individuals using gelatin SDS-PAGE and azocasein assay. The present study was carried out on 62 subjects positive for Blastocystis whetherpresentingwith gastrointestinal symptoms or not. The symptomatic group (cases, GI) included 42 cases while the asymptomatic (control, GII) group included 20 subjects.
               Using gelatin SDS-PAGE analysis, the protease profiles of Blastocystis isolates showed 14 protease bands of both high and low molecular weights with significant differences between symptomatic and asymptomatic groups at 35, 60 and 140 kDa MW bands. Statistical analysis of the protease profile of Blastocystis isolates showed a significant difference (P value < 0.05) between the two groups. Using Azocasein assay, Blastocystis isolatesfrom symptomatic cases show quantitatively higher protease activity than asymptomatic cases but without significant difference between both groups. 
Keywords
Blastocystis; in vitro culture; Morphological forms; Protease; Gelatin SDS-PAGE; Azocasein assay
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