Early growth characteristics and the risk of reduced lung function and asthma: A meta-analysis of 25,000 children

IntroductionChronic disease in children is increasing, including the prevalence of chronic respiratory diseases such as asthma, cystic fibrosis (CF), bronchiectasis and bronchopulmonary dysplasia (BPD). The aim of this systematic review and meta-analysis was to evaluate the effects of exercise training on health outcomes in children with chronic respiratory disease.MethodFive databases were searched for randomised controlled trials investigating the effects of exercise training on children with chronic respiratory disease. Following the PRISMA guidelines, eligible studies were identified and data were extracted. A meta-analysis was conducted for the outcomes cardiovascular fitness, lung function and quality of life (QoL).ResultsThe initial search returned 3688 papers. Twenty-seven (17 in children with asthma, 10 in children with CF) were included in the systematic review and 24 of these were included in the meta-analysis. No studies were identified in children with bronchiectasis or BPD. Included papers had a total of 1009 participants aged 8–20 years. In addition to cardiovascular fitness, lung function and QoL, studies also assessed pulmonary function, respiratory muscle strength, muscular strength and inflammation. Meta-analysis showed a large significant effect size in favour of exercise for cardiovascular fitness (peak VO2) (standard mean difference (SMD)=1.16, 95% CI 0.61 to 1.70) and QoL (SMD=1.27, 95% CI 0.72 to 1.82) as well as a small, non-significant effect size for lung function (FEV1) (SMD=0.02, 95% CI -0.38 to 0.42).ConclusionExercise training significantly improves cardiovascular fitness and QoL in children with asthma and CF. Further research is needed, particularly in children with bronchiectasis and BPD.

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Chronic obstructive pulmonary disease, lung function and risk of type 2 diabetes: a systematic review and meta-analysis of cohort studies

BMC Pulmonary Medicine ◽

10.1186/s12890-020-1178-y ◽

2020 ◽

Vol 20 (1) ◽

Author(s):

Yang Peng ◽

Guo-Chao Zhong ◽

Lingxiao Wang ◽

Lijuan Guan ◽

Ao Wang ◽

...

Keyword(s):

Systematic Review ◽

Type 2 Diabetes ◽

Chronic Obstructive Pulmonary Disease ◽

Lung Function ◽

Cohort Studies ◽

Pulmonary Disease ◽

Meta Analysis ◽

Chronic Obstructive ◽

Obstructive Pulmonary Disease

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Great longevity of speckled hind (Epinephelus drummondhayi), a deep-water grouper, with novel use of postbomb radiocarbon dating in the Gulf of Mexico

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/cjfas-2012-0537 ◽

2013 ◽

Vol 70 (8) ◽

pp. 1131-1140 ◽

Cited By ~ 26

Author(s):

Allen H. Andrews ◽

Beverly K. Barnett ◽

Robert J. Allman ◽

Ryan P. Moyer ◽

Hannah D. Trowbridge

Keyword(s):

Gulf Of Mexico ◽

Deep Water ◽

Radiocarbon Dating ◽

Early Growth ◽

Economic Importance ◽

Growth Characteristics ◽

Adult Age ◽

Bomb Radiocarbon ◽

Growth Zones ◽

Age Estimates

Growth characteristics are poorly understood for speckled hind (Epinephelus drummondhayi), a tropical deep-water grouper of economic importance that is considered overfished. Age has been validated for early growth, but the validity of adult age estimates is unknown. A few studies of growth zones in otoliths have revealed maximum age estimates of 15–35 years, which have been uncritically assumed as longevity. To answer questions about adult age, bomb radiocarbon dating was used to provide validated age estimates. A novel aspect of this study was use of the postbomb radiocarbon decline period (ca. 1980–2004) to age younger fish, an approach that was validated with known-age otoliths. Bomb radiocarbon dating provided valid length-at-age estimates ranging from ∼5 years to more than 45 years. Age was unexpectedly greater than previous estimates for more than half the fish used in this study, and longevity may approach 60–80 years. This study extends the utility of bomb radiocarbon dating by more than 20 years and adds to the growing perspective that deep-water tropical fishes can be long-lived.

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Early growth characteristics of Potamogeton pectinatus L.: the significance of the tuber

Lake Veluwe, a Macrophyte-dominated System under Eutrophication Stress ◽

10.1007/978-94-011-2032-6_8 ◽

1994 ◽

pp. 135-143 ◽

Cited By ~ 1

Author(s):

W. van Vierssen ◽

A. Mathies ◽

J. E. Vermaat

Keyword(s):

Early Growth ◽

Growth Characteristics ◽

Potamogeton Pectinatus

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Association between active tobacco use during pregnancy and infant respiratory health: a systematic review and meta-analysis

BMJ Open ◽

10.1136/bmjopen-2020-037819 ◽

2020 ◽

Vol 10 (9) ◽

pp. e037819

Author(s):

Ediane De Queiroz Andrade ◽

Carla Rebeca Da Silva Sena ◽

Adam Collison ◽

Vanessa E Murphy ◽

Gillian Sandra Gould ◽

...

Keyword(s):

Systematic Review ◽

Lung Function ◽

Tobacco Use ◽

Smokeless Tobacco ◽

Respiratory Health ◽

Data Extraction ◽

Meta Analysis ◽

Maximum Flow ◽

Eligibility Criteria ◽

Residual Capacity

ObjectiveTo evaluate what is known about active tobacco use during pregnancy and the association with infant respiratory health.DesignSystematic review and meta-analysis using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.Data sourcesMEDLINE, EMBASE, Cochrane, CINAHL, and Maternity and Infant Care were searched thoroughly until June 2020.Eligibility criteria for selecting studiesWe included case–control and cohort studies estimating the association between active tobacco use during pregnancy and infant respiratory health (wheezing and apnoea) and lung function parameters in the first 12 months of life.Data extraction and synthesisExtraction and risk of bias assessment were conducted by two independent reviewers. The odds ratio, relative risk and mean differences were pooled with a 95% CI using the generic inverse variance method. Heterogeneity was assessed and expressed by percentage using I2.ResultsWe identified 4423 abstracts, and 21 publications met the eligibility criteria. Pooled OR showed an increase in wheezing episodes in infants born to mothers who were active tobacco users during pregnancy (OR 1.50, 95% CI 1.27 to 1.77, p<0.01). Mixed results were found on lung function parameters, and a meta-analysis including two studies with comparable methodology showed a trend towards reduced maximum flow rate at functional residual capacity of −34.59 mL/s (95% CI −72.81 to 3.63, p=0.08) in 1-month-old infants born to women who smoked during pregnancy. A higher risk of apnoea was described for infants born to mothers who used smokeless tobacco during pregnancy, while the results in infants born to women who actively smoked tobacco during pregnancy were non-conclusive.ConclusionInfants born to mothers who actively smoked during pregnancy are at higher odds of having wheeze and may have lower lung function. Smokeless tobacco use in pregnancy may increase the risk of apnoea in infancy.PROSPERO registration numberCRD42018083936.

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Positive Associations of Dietary Marine Omega-3 Polyunsaturated Fatty Acids with Lung Function: A Meta-analysis (P18-087-19)

Current Developments in Nutrition ◽

10.1093/cdn/nzz039.p18-087-19 ◽

2019 ◽

Vol 3 (Supplement_1) ◽

Cited By ~ 1

Author(s):

Bonnie Patchen ◽

Jiayi Xu ◽

R Graham Barr ◽

Ester van Eekelen ◽

Josee Dupuis ◽

...

Keyword(s):

Fatty Acids ◽

Lung Function ◽

Polyunsaturated Fatty Acids ◽

Dietary Intake ◽

Fixed Effects ◽

Meta Analysis ◽

Fish Intake ◽

Omega 3 ◽

Black And White ◽

Former Smokers

Abstract Objectives Our previous study found positive associations between plasma levels of the omega-3 polyunsaturated fatty acids (n-3 PUFAs), specifically docosahexaenoic acid (DHA) and docosapentaenoic acid (DPA), and lung function, especially in current smokers. Given that plasma n-3 PUFA concentrations are driven by dietary intake, we extended our prior findings to a larger sample by studying dietary n-3 PUFAs, including DHA, DPA, eicosapentanoic acid (EPA), and alpha-linolenic acid (ALA), and fish intake. Methods Nine cohorts from the Cohorts for Heart and Aging Research in Genomic Epidemiology Consortium (N = 37,077 black and white participants) contributed dietary intake and lung function data. In each cohort and each ancestry, separately, associations of dietary n-3 PUFA/fish intake with lung function were estimated in linear regression models. Models were extended to test for n-3 PUFA/fish × smoking status interaction. Fixed-effects meta-analysis was used to generate summarized effect estimates across the cohorts and ancestries. Results Dietary DPA, DHA, EPA, and fish intake were positively associated with forced expiratory volume in one second (FEV1) and forced vital capacity (FVC). ALA had little to no association with these lung function parameters. Associations were similar for black and white participants, and consistent in direction and magnitude across most cohorts. For all participants, 1 standard deviation (SD) higher intake of DPA (∼30 mg/d), DHA (∼200 mg/d), and EPA (∼150 mg/d) were associated with 12–16 mL higher FEV1 and 10–15 mL higher FVC. The effect estimates for fish were in the same direction but smaller in magnitude. Smoking modified the associations of DHA and EPA with FEV1 and FVC; 1 SD higher intake of DHA and EPA were associated with 28–32 mL higher FEV1 and 24–25 mL higher FVC in current smokers, 17–21 mL higher FEV1 and 7–12 mL higher FVC in former smokers, and little to no association in never smokers. Conclusions Dietary DHA, DPA, and EPA, but not ALA, are positively associated with FEV1 and FVC, corroborating our previous findings for plasma n-3 PUFAs. This large cross-sectional meta-analysis shows that diets rich in marine n-3 PUFAs are associated with higher lung function, especially for current and former smokers. Funding Sources National Institutes of Health, NHLBI and NIDDK.

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Meta-analysis of vitamin D and lung function in patients with asthma

Respiratory Research ◽

10.1186/s12931-019-1072-4 ◽

2019 ◽

Vol 20 (1) ◽

Cited By ~ 8

Author(s):

Jian Liu ◽

Yong-Quan Dong ◽

Jie Yin ◽

Jian Yao ◽

Jie Shen ◽

...

Keyword(s):

Vitamin D ◽

Lung Function ◽

Meta Analysis ◽

Serum Vitamin ◽

Forced Expiratory Volume ◽

Asthma Control Test ◽

Serum Vitamin D ◽

Vitamin D Levels ◽

Asthma Patients ◽

Sufficient Vitamin

Abstract Background There is growing literature suggesting a link between vitamin D and asthma lung function, but the results from systematic reviews are conflicting. We conducted this meta-analysis to investigate the relation between serum vitamin D and lung function in asthma patients. Methods Major databases, including OVID, MEDLINE, Web of Science and PUBMED, were searched until 10th October 2018. All published observational studies related to vitamin D and asthma were extracted. All meta-analyses were performed using Review Manager 5.3.5. Results This quantitative synthesis found that asthma patients with low vitamin D levels had lower forced expiratory volume In 1 s (FEV1) (mean difference (MD) = − 0.1, 95% CI = − 0.11 to − 0.08,p < 0.01;I2 = 49%, p = 0.12) and FEV1% (MD = − 10.02, 95% CI = − 11 to − 9.04, p < 0.01; I2 = 0%, p = 0.82) than those with sufficient vitamin D levels. A positive relation was found between vitamin D and FEV1 (r = 0.12, 95% CI = 0.04 to 0.2, p = 0.003; I2 = 59%,p = 0.01), FEV1% (r = 0.19, 95% CI = 0.13 to 0.26, p < 0.001; I2 = 42%, p = 0.11), forced vital capacity (FVC) (r = 0.17, 95% CI = 0.00 to 0.34, p = 0.05; I2 = 60%, p = 0.04), FEV1/FVC (r = 0.4, 95% CI = 0.3 to 0.51, p < 0.001; I2 = 48%, p = 0.07), and the asthma control test (ACT) (r = 0.33, 95% CI = 0.2 to 0.47, p < 0.001; I2 = 0%, p = 0.7). Subgroup analysis indicated that the positive correlation between vitamin D and lung function remained significant in both children and adults. Conclusions Our meta-analysis suggested that serum vitamin D levels may be positively correlated with lung function in asthma patients. Future comprehensive studies are required to confirm these relations and to elucidate potential mechanisms.

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