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Stefano VC, Loiola SH, Dos Santos BM, Soares FA, Rosa SL, Suzuki CT, Bresciani KD, Sabadini E, Falcão AX, Gomes JF. Effects of hypertonic solutions on two species of human intestinal parasites during fecal examination. Future Microbiol 2023; 18:197-203. [PMID: 36916423 DOI: 10.2217/fmb-2022-0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Aim: Ova and parasite examination by flotation requires hypertonic solutions, which can damage the egg and cyst membranes, leading to false negatives. The authors investigated the harmful effects of ZnSO4 and C12H22O11 solutions on the ova and parasite examination. Materials & methods: The authors processed samples using the Three Fecal Test technique. Aliquots were floated in different pH levels, temperatures and solution densities. Results: Densities above 1.12 g/ml led structures to collapse after 6-10 min. pH neutralization of the ZnSO4 solution did not prevent the parasites from changing. Conclusion: All structures were altered when standard methods were performed. To delay collapse, the parasite floating under 5 °C is highly desirable.
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Affiliation(s)
- Vitória C Stefano
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil
| | - Saulo Hn Loiola
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil.,School of Medical Sciences, University of Campinas, 126, Tessália Vieira de Camargo St., Campinas, São Paulo, 13083-887, Brazil
| | - Bianca M Dos Santos
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil.,School of Medical Sciences, University of Campinas, 126, Tessália Vieira de Camargo St., Campinas, São Paulo, 13083-887, Brazil
| | - Felipe A Soares
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil.,School of Medical Sciences, University of Campinas, 126, Tessália Vieira de Camargo St., Campinas, São Paulo, 13083-887, Brazil
| | - Stefany L Rosa
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil.,School of Medical Sciences, University of Campinas, 126, Tessália Vieira de Camargo St., Campinas, São Paulo, 13083-887, Brazil
| | - Celso Tn Suzuki
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil
| | - Katia Ds Bresciani
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil.,School of Veterinary Medicine, São Paulo State University, Araçatuba, 793, Clóvis Pestana St., Araçatuba, São Paulo, 16050-680, Brazil
| | - Edvaldo Sabadini
- Institute of Chemistry, University of Campinas, 126, Josué de Castro St., Campinas, São Paulo,13083-861, Brazil
| | - Alexandre X Falcão
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil
| | - Jancarlo F Gomes
- Laboratory of Image Data Science, Institute of Computing, University of Campinas, 573, IC-3,5, Saturnino de Brito St., Room 364, Campinas, São Paulo, 13083-852, Brazil.,School of Medical Sciences, University of Campinas, 126, Tessália Vieira de Camargo St., Campinas, São Paulo, 13083-887, Brazil
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