Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research
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REVIEW ARTICLE
Year : 2017  |  Volume : 146  |  Issue : 3  |  Page : 316-327

Interplay of cytokines in preterm birth


Department of Pediatrics, Translational Medicine Unit, King George's Medical University, Lucknow, India

Correspondence Address:
Dr Shally Awasthi
Department of Pediatrics, Translational Medicine Unit, King George's Medical University, Lucknow 226 003, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijmr.IJMR_1624_14

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Preterm infants (i.e., born before <37 wk of gestation) are at increased risk of morbidity and mortality and long-term disabilities. Global prevalence of preterm birth (PTB) varies from 5 to 18 per cent. There are multiple aetiological causes and factors associated with PTB. Intrapartum infections are conventionally associated with PTB. However, maternal genotype modulates response to these infections. This review highlights the association of cytokine gene polymorphisms and their levels with PTB. Varying PTB rates across the different ethnic groups may be as a result of genetically mediated varying cytokines response to infections. Studies on genetic variations in tumour necrosis factor-alpha, interleukin-1 alpha (IL-1α), IL-1β, IL-6, IL-10 and toll-like receptor-4 genes and their association with PTB, have been reviewed. No single polymorphism of the studied genes was found to be associated with PTB. However, increased maternal levels of IL-1β and IL-6 and low levels of IL-10 have been found to be associated with PTB.


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