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Bustinduy, Amaya L., Sousa-Figueiredo, J.C., Adriko, Moses, Betson, Martha, Fenwick, Alan, Kabatereine, Narcis and Stothard, Russell 
ORCID: https://orcid.org/0000-0002-9370-3420
(2013)
'Fecal Occult Blood and Fecal Calprotectin as Point-of-Care Markers of Intestinal Morbidity in Ugandan Children with Schistosoma mansoni Infection'. PLoS Neglected Tropical Diseases, Vol 7, Issue 11, e2542.
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Abstract
Background
Calprotectin is a calcium-binding cytoplasmic protein found in neutrophils and increasingly used as a marker of bowel inflammation. Fecal occult blood (FOB) is also a dependable indicator of bowel morbidity. The objective of our study was to determine the applicability of these tests as surrogate markers of Schistosoma mansoni intestinal morbidity before and after treatment with praziquantel (PZQ).
Methods
216 children (ages 3–9 years old) from Buliisa District in Lake Albert, Uganda were examined and treated with PZQ at baseline in October 2012 with 211 of them re-examined 24 days later for S. mansoni and other soil transmitted helminths (STH). POC calprotectin and FOB assays were performed at both time points on a subset of children. Associations between the test results and infection were analysed by logistic regression.
Results
Fecal calprotectin concentrations of 150–300 µg/g were associated with S. mansoni egg patent infection both at baseline and follow up (OR: 12.5 P = 0.05; OR: 6.8 P = 0.02). FOB had a very strong association with baseline anemia (OR: 9.2 P = 0.03) and medium and high egg intensity schistosomiasis at follow up (OR: 6.6 P = 0.03; OR: 51.3 P = 0.003). Both tests were strongly associated with heavy intensity S. mansoni infections. There was a significant decrease in FOB and calprotectin test positivity after PZQ treatment in those children who had egg patent schistosomiasis at baseline.
Conclusions
Both FOB and calprotectin rapid assays were found to correlate positively and strongly with egg patent S. mansoni infection with a positive ameloriation response after PZQ treatment indicative of short term reversion of morbidity. Both tests were appropriate for use in the field with excellent operational performance and reliability. Due to its lower-cost which makes its scale-up of use affordable, FOB could be immediately adopted as a monitoring tool for PC campaigns for efficacy evaluation before and after treatment.
| Item Type: | Article |
|---|---|
| Subjects: | QX Parasitology > Helminths. Annelida > QX 355 Schistosoma QY Clinical Pathology > Diagnostic Tests > QY 160 Feces WC Communicable Diseases > Tropical and Parasitic Diseases > WC 810 Schistosomiasis WS Pediatrics > WS 20 Research (General) |
| Faculty: Department: | Biological Sciences > Department of Tropical Disease Biology |
| Digital Object Identifer (DOI): | https://doi.org/10.1371/journal.pntd.0002542 |
| Depositing User: | Lynn Roberts-Maloney |
| Date Deposited: | 16 Apr 2014 09:50 |
| Last Modified: | 02 Dec 2019 12:52 |
| URI: | https://archive.lstmed.ac.uk/id/eprint/3652 |
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