Abstract

Objective: This study set out to investigate the relationship between molecular-genetic mechanisms that modulate cytokine in infants whose parents expose them to cigarette smoke and those that do not expose their infants to cigarette smoke with the possible effects on the severity of pneumonia at presentation to hospital. Methods: This cross sectional study recruited infants and parents from a regional Children’s Hospital. The infants where classified into three groups: 1. Where the infant was exposed to cigarette smoke through the mother directly (N = 50).2. The mother did not smoke but the infant was exposed to tobacco smoke from the relatives in the family (N = 50). 3. The infant was in a family in which no one smoked. Analysis of genetic polymorphisms (regional frequencies) and determination of CRP and IgE concentrations were performed to investigate if exposure to cigarette smoke could be linked to the severity of pneumonia. Results: Exposure to cigarette smoke in infants changed the likelihood of the severity of pneumonia. The results suggest a possible link between the duration of clinical manifestation of pneumonia within infants that are exposed to cigarette smoke. Infants who are exposed to cigarette smoke had higher plasma concentrates in both IgE and CRP. Among infants with the mutant variant of the TNF-α (G-308A) gene, infants from households where both parents smoked or had a father who smoked had longer duration of clinical signs of pneumonia than did infants with no exposure to tobacco smoke. The plasma concentration of IgE in infants in families where one or both parents smoke was significantly higher than in infants with no smoke exposure. Conclusion: The study begins to develop evidence that if the newborn infant is exposed to tobacco smoke either directly from their mother or from others in the household including automobiles, the severity of pneumonia is increased. Both nurses and pediatricians should reinforce the consequences of smoke around the baby to all parents at every opportunity.

Highlights

  • Tobacco smoking has a pronounced toxic effect on the human body

  • The results suggest a possible link between the duration of clinical manifestation of pneumonia within infants that are exposed to cigarette smoke

  • The study begins to develop evidence that if the newborn infant is exposed to tobacco smoke either directly from their mother or from others in the household including automobiles, the severity of pneumonia is increased

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Summary

Introduction

Tobacco smoking has a pronounced toxic effect on the human body. The increase in the prevalence of smoking among women is a human tragedy because smoking adversely affects the woman herself: if she smokes during pregnancy it affects the health of future generations. Over the past 10 years in Ukraine, smoking prevalence among the female population has tripled, which leads to pathology in pregnancy and childbirth, and unassociated increase in perinatal mortality and morbidities in infants [1,2,3,4]. About 40% of children are exposed to the harmful effects of passive smoking. Secondhand exposure to smoke is a very significant risk factor for sudden infant death syndrome [7,8]

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