RATIONALE: The extent to which maternal smoking in pregnancy (MSP) has persisting effects on respiratory health remains uncertain and the mechanisms involved are not fully understood. Alterations in immune function have been proposed as a mechanism contributing to respiratory disease. OBJECTIVES: To determine whether MSP increases risk of respiratory disorders in adolescence and, if so, whether this occurs by decreased lung function, altered immune function, and/or enhanced atopy. METHODS: Data on spirometry, bronchial responsiveness, respiratory symptoms, total and allergen-specific IgE and IgG4, immune function, and inflammatory markers were obtained from 1,129 participants in the 14-year follow-up of the Western Australian Pregnancy (Raine) Cohort and related to MSP using regression analyses. MEASUREMENTS AND MAIN RESULTS: MSP was reported for 21.0% (237 of 1,129) of participants, with 92 (8.1%) reporting current smoking. MSP was associated with some altered immune measures at age 14. MSP was strongly related to reduced lung function in current nonsmokers (forced expiratory flow midexpiratory phase [FEF25-75%], P = 0.016; FEV1/FVC, P = 0.009) and increased risk for current asthma (odds ratio [OR], 1.84; 95% confidence interval [CI], 1.16-2.92; P = 0.01), current wheeze (OR, 1.77; 95% CI, 1.14-2.75; P = 0.011), and exercise-induced wheeze (OR, 2.29; 95% CI, 1.37-3.85; P = 0.002), but not for bronchial hyperresponsiveness or atopy. Adjustment for immune measures and/or lung function in multivariate models did not greatly alter these associations and the increased risks for asthma and wheeze were not modified by sex, atopy, or maternal history of asthma or atopy. CONCLUSIONS: MSP increases risk of asthma and wheezing in adolescence; mechanisms go beyond reducing lung function and exclude altering immune function or enhancing atopy.
RATIONALE: The extent to which maternal smoking in pregnancy (MSP) has persisting effects on respiratory health remains uncertain and the mechanisms involved are not fully understood. Alterations in immune function have been proposed as a mechanism contributing to respiratory disease. OBJECTIVES: To determine whether MSP increases risk of respiratory disorders in adolescence and, if so, whether this occurs by decreased lung function, altered immune function, and/or enhanced atopy. METHODS: Data on spirometry, bronchial responsiveness, respiratory symptoms, total and allergen-specific IgE and IgG4, immune function, and inflammatory markers were obtained from 1,129 participants in the 14-year follow-up of the Western Australian Pregnancy (Raine) Cohort and related to MSP using regression analyses. MEASUREMENTS AND MAIN RESULTS: MSP was reported for 21.0% (237 of 1,129) of participants, with 92 (8.1%) reporting current smoking. MSP was associated with some altered immune measures at age 14. MSP was strongly related to reduced lung function in current nonsmokers (forced expiratory flow midexpiratory phase [FEF25-75%], P = 0.016; FEV1/FVC, P = 0.009) and increased risk for current asthma (odds ratio [OR], 1.84; 95% confidence interval [CI], 1.16-2.92; P = 0.01), current wheeze (OR, 1.77; 95% CI, 1.14-2.75; P = 0.011), and exercise-induced wheeze (OR, 2.29; 95% CI, 1.37-3.85; P = 0.002), but not for bronchial hyperresponsiveness or atopy. Adjustment for immune measures and/or lung function in multivariate models did not greatly alter these associations and the increased risks for asthma and wheeze were not modified by sex, atopy, or maternal history of asthma or atopy. CONCLUSIONS: MSP increases risk of asthma and wheezing in adolescence; mechanisms go beyond reducing lung function and exclude altering immune function or enhancing atopy.
Authors: M J McGeachie; K P Yates; S T Weiss; R C Strunk; X Zhou; F Guo; A L Sternberg; M L Van Natta; R A Wise; S J Szefler; S Sharma; A T Kho; M H Cho; D C Croteau-Chonka; P J Castaldi; G Jain; A Sanyal; Y Zhan; B R Lajoie; J Dekker; J Stamatoyannopoulos; R A Covar; R S Zeiger; N F Adkinson; P V Williams; H W Kelly; H Grasemann; J M Vonk; G H Koppelman; D S Postma; B A Raby; I Houston; Q Lu; A L Fuhlbrigge; K G Tantisira; E K Silverman; J Tonascia Journal: N Engl J Med Date: 2016-05-12 Impact factor: 91.245
Authors: Cheng Peng; Evelien R Van Meel; Andres Cardenas; Sheryl L Rifas-Shiman; Abhijeet R Sonawane; Kimberly R Glass; Diane R Gold; Thomas A Platts-Mills; Xihong Lin; Emily Oken; Marie-France Hivert; Andrea A Baccarelli; Nicolette W De Jong; Janine F Felix; Vincent W Jaddoe; Liesbeth Duijts; Augusto A Litonjua; Dawn L DeMeo Journal: Epigenetics Date: 2019-03-28 Impact factor: 4.528
Authors: Leon Straker; Jenny Mountain; Angela Jacques; Scott White; Anne Smith; Louis Landau; Fiona Stanley; John Newnham; Craig Pennell; Peter Eastwood Journal: Int J Epidemiol Date: 2017-10-01 Impact factor: 7.196
Authors: Lyndsey E Shorey-Kendrick; Cindy T McEvoy; Betsy Ferguson; Julja Burchard; Byung S Park; Lina Gao; Brittany H Vuylsteke; Kristin F Milner; Cynthia D Morris; Eliot R Spindel Journal: Am J Respir Crit Care Med Date: 2017-09-15 Impact factor: 21.405
Authors: Lindsey A Morrow; Brandie D Wagner; David A Ingram; Brenda B Poindexter; Kurt Schibler; C Michael Cotten; John Dagle; Marci K Sontag; Peter M Mourani; Steven H Abman Journal: Am J Respir Crit Care Med Date: 2017-08-01 Impact factor: 21.405
Authors: Don B Sanders; Julia Emerson; Clement L Ren; Michael S Schechter; Ronald L Gibson; Wayne Morgan; Margaret Rosenfeld Journal: Ann Am Thorac Soc Date: 2015-08