PMID- 31687034 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220411 IS - 1710-1484 (Print) IS - 1710-1492 (Electronic) IS - 1710-1484 (Linking) VI - 15 DP - 2019 TI - Plasma cytokine profiles associated with rhodesiense sleeping sickness and falciparum malaria co-infection in North Eastern Uganda. PG - 63 LID - 10.1186/s13223-019-0377-7 [doi] LID - 63 AB - BACKGROUND: Immunological Human African Trypanosomiasis (HAT) studies often exclude malaria, although both infections overlap in specific endemic areas. During this co-infection, it is not known whether this parasitic interaction induces synergistic or antagonistic cytokine response among humans. This study determined prevalence of Plasmodium falciparum malaria among Trypanosoma brucei rhodesiense HAT and plasma cytokine profile levels associated with HAT and/or malaria infections. METHODS: Participants were recruited at Lwala hospital in north eastern Uganda: healthy controls (30), malaria (28), HAT (17), HAT and malaria (15) diagnosed by microscopy and PCR was carried out for parasite species identification. Plasma cytokine levels of Interferon-gamma (IFN-gamma), Tumour Necrosis Factor-alpha (TNF-alpha), Interleukin (IL)-6, IL-10 and Transforming Growth Factor-beta (TGF-beta) were measured by sandwich Enzyme-Linked Immuno Sorbent Assay and data statistically analysed using Graphpad Prism 6.0. RESULTS: The prevalence of P. falciparum malaria among T. rhodesiense HAT cases was high (46.8%). Malaria and/or HAT cases presented significant higher plasma cytokine levels of IFN-gamma, TNF-alpha, IL-6, IL-10 and TGF-beta than healthy controls (P < 0.05). Levels of IFN-gamma, IL-6 and IL-10 were significantly elevated in HAT over malaria (P < 0.05) but no significant difference in TNF-alpha and TGF-beta between HAT and malaria (P > 0.05). Co-infection expressed significantly higher plasma IFN-gamma, IL-6, and IL-10 levels than malaria (P < 0.05) but no significant difference with HAT mono-infection (P > 0.05). The TNF-alpha level was significantly elevated in co-infection over HAT or malaria mono-infections (P < 0.05) unlike TGF-beta level. Significant positive correlations were identified between IFN-gamma verses TNF-alpha and IL-6 verses IL-10 in co-infection (Spearman's P < 0.05). CONCLUSIONS: The T. b. rhodesiense significantly induced the cytokine response more than P. falciparum infections. Co-infection led to synergistic stimulation of pro-inflammatory (IFN-gamma, TNF-alpha), and anti-inflammatory (IL-6, and IL-10) cytokine responses relative to malaria mono-infection. Level of TNF-alpha partially indicates the effect induced by T. b. rhodesiense and P. falciparum mono-infections or a synergistic interaction of co-infections which may have adverse effects on pathogenesis, prognosis and resolution of the infections.Trial registration VCD-IRC/021, 26/08/2011; HS 1089, 16/01/2012. CI - (c) The Author(s) 2019. FAU - Nsubuga, Julius AU - Nsubuga J AUID- ORCID: 0000-0002-1191-9210 AD - 1College of Veterinary Medicine, Animal Resources & Bio-security, Makerere University, Kampala, Uganda. ISNI: 0000 0004 0620 0548. GRID: grid.11194.3c FAU - Kato, Charles Drago AU - Kato CD AD - 1College of Veterinary Medicine, Animal Resources & Bio-security, Makerere University, Kampala, Uganda. ISNI: 0000 0004 0620 0548. GRID: grid.11194.3c FAU - Nanteza, Ann AU - Nanteza A AD - 1College of Veterinary Medicine, Animal Resources & Bio-security, Makerere University, Kampala, Uganda. ISNI: 0000 0004 0620 0548. GRID: grid.11194.3c FAU - Matovu, Enock AU - Matovu E AD - 1College of Veterinary Medicine, Animal Resources & Bio-security, Makerere University, Kampala, Uganda. ISNI: 0000 0004 0620 0548. GRID: grid.11194.3c FAU - Alibu, Vincent Pius AU - Alibu VP AD - 2College of Natural Sciences, Makerere University, Kampala, Uganda. ISNI: 0000 0004 0620 0548. GRID: grid.11194.3c LA - eng PT - Journal Article DEP - 20191030 PL - England TA - Allergy Asthma Clin Immunol JT - Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology JID - 101244313 PMC - PMC6820921 OTO - NOTNLM OT - Co-infection OT - Cytokine OT - HAT OT - IFN-gamma OT - IL-10 OT - IL-6 OT - Malaria OT - Mono-infection OT - TGF-beta OT - TNF-alpha COIS- Competing interestsThe authors declare that they have no competing interests. EDAT- 2019/11/07 06:00 MHDA- 2019/11/07 06:01 PMCR- 2019/10/30 CRDT- 2019/11/06 06:00 PHST- 2019/01/18 00:00 [received] PHST- 2019/10/11 00:00 [accepted] PHST- 2019/11/06 06:00 [entrez] PHST- 2019/11/07 06:00 [pubmed] PHST- 2019/11/07 06:01 [medline] PHST- 2019/10/30 00:00 [pmc-release] AID - 377 [pii] AID - 10.1186/s13223-019-0377-7 [doi] PST - epublish SO - Allergy Asthma Clin Immunol. 2019 Oct 30;15:63. doi: 10.1186/s13223-019-0377-7. eCollection 2019.