1
|
Menezes RADO, Gomes MDSM, Mendes AM, Couto ÁARDA, Nacher M, Pimenta TS, de Sousa ACP, Baptista ARDS, de Jesus MI, Enk MJ, Cunha MG, Machado RLD. Enteroparasite and vivax malaria co-infection on the Brazil-French Guiana border: Epidemiological, haematological and immunological aspects. PLoS One 2018; 13:e0189958. [PMID: 29293589 PMCID: PMC5749708 DOI: 10.1371/journal.pone.0189958] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/05/2017] [Indexed: 11/30/2022] Open
Abstract
Malaria-enteroparasitic co-infections are known for their endemicity. Although they are prevalent, little is known about their epidemiology and effect on the immune response. This study evaluated the effect of enteroparasite co-infections with malaria caused by Plasmodium vivax in a border area between Brazil and French Guiana. The cross sectional study took place in Oiapoque, a municipality of Amapá, on the Amazon border. Malaria was diagnosed using thick blood smears, haemoglobin dosage by an automated method and coproparasitology by the Hoffman and Faust methods. The anti-PvMSP-119 IgG antibodies in the plasma were evaluated using ELISA and Th1 (IFN-γ, TNF-α and IL-2), and Th2 (IL-4, IL-5 and IL-10) cytokine counts were performed by flow cytometry. The participants were grouped into those that were monoinfected with vivax malaria (M), vivax malaria-enteroparasite co-infected (CI), monoinfected with enteroparasite (E) and endemic controls (EC), who were negative for both diseases. 441 individuals were included and grouped according to their infection status: [M 6.9% (30/441)], [Cl 26.5% (117/441)], [E 32.4% (143/441)] and [EC 34.2% (151/441)]. Males prevailed among the (M) 77% (23/30) and (CI) 60% (70/117) groups. There was a difference in haemoglobin levels among the different groups under study for [EC-E], [EC-Cl], [E-M] and [Cl-M], with (p < 0.01). Anaemia was expressed as a percentage between individuals [CI-EC (p < 0.05)]. In terms of parasitaemia, there were differences for the groups [CI-M (p < 0.05)]. Anti-PvMSP-119 antibodies were detected in 51.2% (226/441) of the population. The level of cytokines evaluation revealed a large variation in TNF-α and IL-10 concentrations in the co-infected group. In this study we did not observe any influence of coinfection on the acquisition of IgG antibodies against PvMSP119, as well as on the profile of the cytokines that characterize the Th1 and Th2 patterns. However, co-infection increased TNF-α and IL-10 levels.
Collapse
Affiliation(s)
- Rubens Alex de Oliveira Menezes
- Postgraduate Program in the Biology of Infectious and Parasitic Agents, Federal University of Pará (UFPA), Belém, Pará State, Brazil
- Laboratory of morphofunctional and parasitic studies with impact on health (LEMPIS), Federal University of Amapá (UNIFAP), Macapa, Amapá State, Brazil
- * E-mail:
| | | | - Anapaula Martins Mendes
- UNIFAP/Oiapoque Binational Campus, Federal University of Amapá, Oiapoque, Amapá State, Brazil
| | | | - Mathieu Nacher
- Centre d’Investigation Clinique, CIC INSERM 1424, Centre Hospitalier de Cayenne, Cayenne, French Guiana
| | - Tamirys Simão Pimenta
- Postgraduate Program in Neuroscience and Cell Biology, UFPA, Belém, Pará State, Brazil
- Evandro Chagas Institute/Brazilian Secretariat of Health Surveillance (SVS)/Brazilian Ministry of Health (MS), Ananindeua, Pará State, Brazil
| | - Aline Collares Pinheiro de Sousa
- Evandro Chagas Institute/Brazilian Secretariat of Health Surveillance (SVS)/Brazilian Ministry of Health (MS), Ananindeua, Pará State, Brazil
| | | | - Maria Izabel de Jesus
- Evandro Chagas Institute/Brazilian Secretariat of Health Surveillance (SVS)/Brazilian Ministry of Health (MS), Ananindeua, Pará State, Brazil
| | - Martin Johannes Enk
- Evandro Chagas Institute/Brazilian Secretariat of Health Surveillance (SVS)/Brazilian Ministry of Health (MS), Ananindeua, Pará State, Brazil
| | - Maristela Gomes Cunha
- Postgraduate Program in the Biology of Infectious and Parasitic Agents, Federal University of Pará (UFPA), Belém, Pará State, Brazil
- Laboratory of Microbiology and Immunology, Federal University of Pará (UFPA), Belém, Pará State, Brazil
| | - Ricardo Luiz Dantas Machado
- Postgraduate Program in the Biology of Infectious and Parasitic Agents, Federal University of Pará (UFPA), Belém, Pará State, Brazil
- Evandro Chagas Institute/Brazilian Secretariat of Health Surveillance (SVS)/Brazilian Ministry of Health (MS), Ananindeua, Pará State, Brazil
- Fluminense Federal University, Niterói, Rio de Janeiro State, Brazil
| |
Collapse
|
2
|
Santos EO, Jesus IMD, Câmara VDM, Brabo EDS, Jesus MID, Fayal KF, Asmus CIRF. Correlation between blood mercury levels in mothers and newborns in Itaituba, Pará State, Brazil. CAD SAUDE PUBLICA 2007; 23 Suppl 4:S622-9. [DOI: 10.1590/s0102-311x2007001600022] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Accepted: 01/12/2007] [Indexed: 11/21/2022] Open
Abstract
This study evaluated transplacental mercury transfer by measuring Hg in blood samples of mothers and newborns (umbilical cord) in hospitals in the municipality (county) of Itaituba, Pará State, Brazil. Epidemiological and mercury exposure data were collected, besides clinical birth data. Mercury tests were performed by cold-vapor atomic absorption spectrophotometry. A total of 1,510 women and an equal number of their newborns participated in the study. Mean blood mercury was 11.53µg/L in mothers and 16.68µg/L in newborns (umbilical cord). The highest Hg levels were in the 31-40-year maternal age group and their newborns, with 14.37µg/L and 21.87µg/L, respectively. However, in all age groups the mean mercury level was higher in newborns than in mothers. There was a strong positive correlation between Hg levels in newborns and mothers (r = 0.8019; p = 0.000), with a significant linear regression model (r = 0.5283; p = 0.000). The results highlight the importance of monitoring pregnant women exposed to mercury as part of public health surveillance.
Collapse
|