Evaluation of the relationship between passive smoking and salivary electrolytes, protein, secretory IgA, sialic acid and amylase in young children

Arch Oral Biol. 2009 May;54(5):457-63. doi: 10.1016/j.archoralbio.2009.01.017. Epub 2009 Feb 26.

Abstract

Objective: To evaluate the relationship between passive smoking as determined by salivary cotinine levels and salivary electrolytes, protein, secretory IgA, sialic acid and amylase in children.

Design: Saliva was collected from 90 passive smoker (PS) subjects (the study group) and 90 healthy age-matched children (the control group). The study group was divided into three subgroups according the number of cigarettes smoked. Socio-economic status, dental and dietary habits were recorded by questionnaire. Stimulated salivary calcium (Ca), phosphate (P), sodium (Na), potassium (P), total protein, amylase activity, sialic acid level, secretory IgA concentration and cotinine level were analysed. All data were analysed using SPSS, version 13.0.

Results: Socio-economic status, dental and dietary habits were similar between the two groups. The salivary electrolytes concentrations did not reveal significant difference between the two groups (p>0.05). The mean cotinine levels of PS children were 1.58+/-4.3 ng/mL. The salivary concentrations of protein were similar between the two groups (p>0.05). The salivary secretory IgA concentration was significantly lower in the PS group than controls. The sialic acid level and amylase activity in PS group were found significantly higher compared with the controls (p<0.05). No difference was observed for all these parameters with sex (p>0.05). When saliva samples were analysed for output, the sialic acid level and amylase activity increased significantly in PS subjects (p<0.05). Further, the output of secretory IgA concentration was found significantly lower compared with the controls (p<0.05).

Conclusion: In conclusion, we show that passive smoking was associated with a decrease in secretory IgA concentration, whereas with increase in amylase activity and sialic acid level of stimulated whole saliva in young children.

Publication types

  • Comparative Study

MeSH terms

  • Calcium / analysis
  • Case-Control Studies
  • Child
  • Child, Preschool
  • Cotinine / analysis
  • Dietary Sucrose / administration & dosage
  • Educational Status
  • Electrolytes / analysis*
  • Fathers / education
  • Feeding Behavior
  • Female
  • Humans
  • Immunoglobulin A, Secretory / analysis*
  • Income
  • Male
  • Mothers / education
  • N-Acetylneuraminic Acid / analysis*
  • N-Acetylneuraminic Acid / metabolism
  • Oral Hygiene
  • Phosphates / analysis
  • Potassium / analysis
  • Saliva / chemistry*
  • Saliva / metabolism
  • Salivary Proteins and Peptides / analysis*
  • Salivary alpha-Amylases / analysis*
  • Salivary alpha-Amylases / metabolism
  • Secretory Rate
  • Social Class
  • Sodium / analysis
  • Tobacco Smoke Pollution*
  • Toothbrushing

Substances

  • Dietary Sucrose
  • Electrolytes
  • Immunoglobulin A, Secretory
  • Phosphates
  • Salivary Proteins and Peptides
  • Tobacco Smoke Pollution
  • Sodium
  • Salivary alpha-Amylases
  • N-Acetylneuraminic Acid
  • Cotinine
  • Potassium
  • Calcium