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Table 2 Changes in cytokine profiles during parasitic infections. A selection of results obtained from selected Plasmodium, helminth and Plasmodium-helminth co-infection studies conducted in Africa and South America

From: Plasmodium and intestinal parasite perturbations of the infected host’s inflammatory responses: a systematic review

Year

Country

Study population

Parasite

Cytokines

Reference

2016

Indonesia

All age groups

Helminths

Increased in vitro production of pro-inflammatory cytokines in response to Pf after treatment

[108]

2015

Gabon

Children

Schistosoma haematobium

Innate or adaptive immune response to Pf with or without Schistosoma co-infection was similar

[90]

2015

Kenya

Children

Polyparasite

IL-10 increased with Schistosoma infection but decreased in Schistosoma/filaria co-infections

[90]

IL-6 increased with Pf infection but decreased in Pf/hookworm co-infection

[109]

IL-6 and TNF-α levels were not affected by Schistosoma infection

[109]

2014

Nigeria

Children

Schistosoma haematobium

IL-10 did not change with Schistosoma infection but IFN- γ increased in older children

[110]

2014

Brazil

All age groups

Giardia intestinalis, Ancylostoma duodenale, Strongiloides stercoralis

TNF-α, IL-12, IL-10 and IL-6 were low but IFN-γ was high in co-infected people

[91]

2013

Ghana

All age groups

Necator americanus and Giardia lamblia

Pf exposure increased TNF-α, IL-17 and IL-7 production

[155]

2012

Mali

Children

Schistosoma haematobium

Higher Th1 cytokines in Schistosoma/Pf co-infections

[88]

2012

Mali

All age groups

Filaria

IL-12 low in filarial-positive, in vitro filarial-positive associated with IFN regulatory factor 1, no IL-12 in response to malaria antigen stimulation

[156]

2011

Mali

All age groups

Filaria

Filarial infection with asymptomatic malaria was associated with an increase in IL-4, IL-10 and IL-17A. PBMC stimulation with Pf antigen reduced IFN-γ, TNF-α and IL-17A in the filiarial infection

[73]

2011

Senegal

All age groups

Schistosoma haematobium

Higher IL-10 in the co-infected group

[157]

2010

Senegal

Children

Schistosoma haematobium

Schizont extract produced IL-10 only in co-infected group

[158]

2009

West Kenya

Children

Schistosoma mansoni

Memory T-regulators cells decreased in co-infected children

[159]

  1. Pf, Plasmodium falciparum