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Ultrasound in Obstetrics & Gynecology :... Apr 2024To assess and quantify the association between pre-pregnancy maternal overweight and obesity, and the risk of congenital heart defects (CHDs) in offspring. (Review)
Review
Maternal prepregnancy weight as an independent risk factor for congenital heart defects: systematic review and meta-analysis stratified by cardiac defect subtypes and severity.
OBJECTIVES
To assess and quantify the association between pre-pregnancy maternal overweight and obesity, and the risk of congenital heart defects (CHDs) in offspring.
METHODS
This systematic review and meta-analysis included searches of PubMed, Medline, Web of science, and Scopus up to April 20th, 2023. Risk estimates were abstracted or calculated for rising body mass index categories (overweight, obesity, moderate and severe obesity) compared to normal weight (reference). Fixed-effects or random-effects models were used to combine individual study risk estimates based on the degree of heterogeneity. Sensitivity analyses were conducted to weight pooled estimates for relevant moderators, particularly diabetes prior and during pregnancy. Subgroup analyses for specific congenital heart defects were conducted if there were at least two studies with accessible data. The findings were presented in two ways: as groups of defects, categorized using severity and topographic-functional criteria, and as individual defects. The certainty of the evidence for each effect estimate was evaluated according to the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) guidelines.
RESULTS
Twenty studies for a total of 4,861,693 patients and 86,136 CHDs cases were included. The risk for CHDs progressively increases from moderate to severe obesity (pooled odds ratio (OR), respectively: 1.15, 95% confidence interval (CI), 1.11-1.20, and 1.39, 95% CI, 1.27-1.53). Sensitivity analysis indicated that this effect persists independently of maternal diabetes status before or during pregnancy. In subgroup analysis, obesity was associated with up to a 1.5-fold increase in the risk of severe CHDs (pooled OR, 1.48; 95% CI, 1.03-2.13). Specifically, severe obesity was found to be associated with an even higher risk, increasing up to 1.8 times for specific CHDs including tetralogy of Fallot (pooled OR, 1.72; 95% CI, 1.38-2.16), pulmonary valve stenosis (pooled OR, 1.79; 95% CI, 1.39-2.30), and atrial septal defects (pooled OR, 1.71; 95% CI, 1.48-1.97).
CONCLUSIONS
Maternal weight emerged as a crucial modifiable risk factor for preventing CHDs, particularly the severe forms. Future research is needed to investigate whether weight management prior to pregnancy might serve as a preventive measure against CHDs. Additionally, for pregnant women with obesity, fetal echocardiography ought to be a routine diagnostic procedure. This article is protected by copyright. All rights reserved.
PubMed: 38629488
DOI: 10.1002/uog.27659 -
International Journal of Molecular... Apr 2024This study examines the impact of insulin-like growth factor 1 (IGF-1) and insulin-like growth factor 2 (IGF-2) on various aspects of children's health-from the realms... (Review)
Review
This study examines the impact of insulin-like growth factor 1 (IGF-1) and insulin-like growth factor 2 (IGF-2) on various aspects of children's health-from the realms of growth and puberty to the nuanced characteristics of metabolic syndrome, diabetes, liver pathology, carcinogenic potential, and cardiovascular disorders. A comprehensive literature review was conducted using PubMed, with a Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method employing specific keywords related to child health, obesity, and insulin-like growth factors. This study reveals associations between insulin-like growth factor 1 and birth weight, early growth, and adiposity. Moreover, insulin-like growth factors play a pivotal role in regulating bone development and height during childhood, with potential implications for puberty onset. This research uncovers insulin-like growth factor 1 and insulin-like growth factor 2 as potential biomarkers and therapeutic targets for metabolic dysfunction-associated liver disease and hepatocellular carcinoma, and it also highlights the association between insulin-like growth factors (IGFs) and cancer. Additionally, this research explores the impact of insulin-like growth factors on cardiovascular health, noting their role in cardiomyocyte hypertrophy. Insulin-like growth factors play vital roles in human physiology, influencing growth and development from fetal stages to adulthood. The impact of maternal obesity on children's IGF levels is complex, influencing growth and carrying potential metabolic consequences. Imbalances in IGF levels are linked to a range of health conditions (e.g., insulin resistance, glucose intolerance, metabolic syndrome, and diabetes), prompting researchers to seek novel therapies and preventive strategies, offering challenges and opportunities in healthcare.
Topics: Pregnancy; Child; Female; Humans; Insulin-Like Growth Factor I; Insulin-Like Growth Factor II; Metabolic Syndrome; Obesity; Insulin-Like Peptides; Diabetes Mellitus
PubMed: 38612776
DOI: 10.3390/ijms25073966 -
Advances in Nutrition (Bethesda, Md.) Jun 2024Maternal adiposity impacts lactation performance, but the pathways are unclear. We conducted a systematic review to understand whether maternal adiposity (body mass... (Meta-Analysis)
Meta-Analysis Review
Is Maternal Body Weight or Composition Associated with Onset of Lactogenesis II, Human Milk Production, or Infant Consumption of Mother's Own Milk? A Systematic Review and Meta-Analysis.
Maternal adiposity impacts lactation performance, but the pathways are unclear. We conducted a systematic review to understand whether maternal adiposity (body mass index [BMI] or percentage fat mass) is associated with onset of lactogenesis II (copious milk; hours), human milk production (expressed volume/24 h), and infant consumption of mother's own milk (volume/24 h). We used random-effects standard meta-analyses to compare the relative risk (RR) of delayed lactogenesis II (>72 h) between mothers classified as underweight (BMI <18.5 kg/m), healthy weight (BMI, 18.5-24.9 kg/m), and overweight/obese (BMI ≥25 kg/m) and random-effects meta-regressions to examine associations with hours to lactogenesis II and infant milk consumption. The certainty of evidence was assessed using the Grading of Recommendations, Assessment, Development and Evaluation approach. We included 122 articles. Mothers with underweight (RR: 0.64; 95% CI: 0.49, 0.83; I = 39.48%; 8 articles/data points) or healthy weight status (RR: 0.67; 95% CI: 0.57, 0.79; I = 70.91%; 15 articles/data points) were less likely to experience delayed lactogenesis II than mothers with overweight/obesity. We found no association between maternal BMI and time to onset of lactogenesis II (β: 1.45 h; 95% CI: -3.19, 6.09 h; P = 0.52, I = 0.00%; 8 articles, 17 data points). Due to limited data, we narratively reviewed articles examining BMI or percentage fat mass and milk production (n = 6); half reported an inverse association and half no association. We found no association between maternal BMI (β: 6.23 mL; 95% CI: -11.26, 23.72 mL; P = 0.48, I = 47.23%; 58 articles, 75 data points) or percentage fat mass (β: 7.82 mL; 95% CI: -1.66, 17.29 mL; P = 0.10, I = 28.55%; 30 articles, 41 data points) and infant milk consumption. The certainty of evidence for all outcomes was very low. In conclusion, mothers with overweight/obesity may be at risk of delayed lactogenesis II. The available data do not support an association with infant milk consumption, but the included studies do not adequately represent mothers with obesity. This study was registered in PROSPERO as 285344.
Topics: Humans; Female; Lactation; Milk, Human; Infant; Body Weight; Breast Feeding; Body Mass Index; Mothers; Adult; Body Composition; Adiposity; Infant, Newborn; Overweight; Obesity; Thinness
PubMed: 38609047
DOI: 10.1016/j.advnut.2024.100228 -
Nutrition Reviews Apr 2024Gestational weight gain (GWG) is known to be a risk factor for offspring obesity, a precursor of cardiometabolic diseases. Accumulating studies have investigated the...
CONTEXT
Gestational weight gain (GWG) is known to be a risk factor for offspring obesity, a precursor of cardiometabolic diseases. Accumulating studies have investigated the association of GWG with offspring cardiometabolic risk factors (CRFs), leading to inconsistent results.
OBJECTIVE
This study synthesized available data from cohort studies to examine the effects of GWG on offspring CRFs.
DATA SOURCE
Four electronic databases, including PubMed, Web of Science, Scopus, and Embase, were searched through May 2023.
DATA EXTRACTION
Cohort studies evaluating the association between GWG and CRFs (fat mass [FM], body fat percentage [BF%], waist circumference [WC], systolic blood pressure [SBP] and diastolic blood pressure, high-density-lipoprotein cholesterol [HDL-C] and low-density-lipoprotein cholesterol, triglyceride [TG], total cholesterol, fasting blood glucose, and fasting insulin levels) were included. Regression coefficients, means or mean differences with 95% confidence intervals [CIs], or standard deviations were extracted.
DATA ANALYSIS
Thirty-three cohort studies were included in the meta-analysis. Higher GWG (per increase of 1 kg) was associated with greater offspring FM (0.041 kg; 95% CI, 0.016 to 0.067), BF% (0.145%; 95% CI, 0.116 to 0.174), WC (0.154 cm; 95% CI, 0.036 to 0.272), SBP (0.040 mmHg; 95% CI, 0.010 to 0.070), and TG (0.004 mmol/L; 95% CI, 0.001 to 0.007), and with lower HDL-C (-0.002 mmol/L; 95% CI, -0.004 to 0.000). Consistently, excessive GWG was associated with higher offspring FM, BF%, WC, and insulin, and inadequate GWG was associated with lower BF%, low-density lipoprotein cholesterol, total cholesterol, and TG, compared with adequate GWG. Most associations went non-significant or attenuated with adjustment for offspring body mass index or FM.
CONCLUSIONS
Higher maternal GWG is associated with increased offspring adiposity, SBP, TG, and insulin and decreased HDL-C in offspring, warranting a need to control GWG and to screen for cardiometabolic abnormalities of offspring born to mothers with excessive GWG.
SYSTEMATIC REVIEW REGISTRATION
PROSPERO registration no. CRD42023412098.
PubMed: 38607346
DOI: 10.1093/nutrit/nuae027 -
Diabetology & Metabolic Syndrome Apr 2024In the present systematic review and meta-analysis, the association of maternal exposure to the endocrine disrupting chemicals (EDCs) with cardio-metabolic risk factors... (Review)
Review
Association of maternal exposure to endocrine disruptor chemicals with cardio-metabolic risk factors in children during childhood: a systematic review and meta-analysis of cohort studies.
BACKGROUND
In the present systematic review and meta-analysis, the association of maternal exposure to the endocrine disrupting chemicals (EDCs) with cardio-metabolic risk factors in children during childhood for the first time.
METHOD
The PubMed, Scopus, EMBASE, and Web of Science databases were systematically searched, up to Feb 2023. In total 30 cohort studies had our inclusion criteria. A random-effects model was used for the variables that had considerable heterogeneity between studies. The Newcastle-Ottawa Scale (NOS) tool was used to classify the quality score of studies. All statistical analyses were conducted using Stata 14 and P-value < 0.05 considered as a significant level.
RESULTS
In the meta-analysis, maternal exposure to the EDCs was weakly associated with higher SBP (Fisher_Z: 0.06, CI: 0.04, 0.08), BMI (Fisher_Z: 0.07, CI: 0.06, 0.08), and WC (Fisher_Z: 0.06, CI: 0.03, 0.08) z-scores in children. A significant linear association was found between maternal exposure to the bisphenol-A and pesticides with BMI and WC z-score in children (p < 0.001). Subgroup analysis showed significant linear association of BPA and pesticides, in the urine samples of mothers at the first trimester of pregnancy, with BMI and WC z-score in children from 2-8 years (p < 0.05).
CONCLUSION
Prenatal exposure to the EDCs in the uterine period could increase the risk of obesity in children. Maternal exposure to bisphenol-A and pesticides showed the strongest association with the obesity, especially visceral form, in the next generation.
PubMed: 38576015
DOI: 10.1186/s13098-024-01320-0 -
Midwifery May 2024Retention of weight gained over pregnancy increases the risk of long-term obesity and related health concerns. While many risk factors for this postpartum weight... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
Retention of weight gained over pregnancy increases the risk of long-term obesity and related health concerns. While many risk factors for this postpartum weight retention have been examined, the role of mode of delivery in this relationship remains controversial. We carried out a systematic review and meta-analysis to determine the effect of mode of delivery on postpartum weight retention.
METHODS
Ten electronic databases including PubMed, Cochrane Library, EMBASE, Web of Science, MEDLINE, CINAHL, China National Knowledge Infrastructure (CNKI), Wan-Fang database, the VIP database and China Biology Medicine Database (CBM) were searched from inception through November 2022. Review Manager 5.4 was used to pool the study data and calculate effect sizes. For dichotomous data, the odds ratio and 95 % confidence interval were used to report the results. For continuous data, the mean difference (MD) and 95 % confidence interval were used to report the results. The outcomes were the amount of postpartum weight retention and the number or proportion of women who experienced postpartum weight retention. The Newcastle- Ottawa Scale (NOS) and GRADE Guidelines were used to assess the methodological quality of the included studies.
FINDINGS
A total of 16 articles were included in the systematic review and 13 articles were included in the meta-analysis. The results showed that the mode of delivery had a significant effect on postpartum weight retention, women who delivered by caesarean section were more likely to experience postpartum weight retention compared to those who delivered vaginally. Sensitivity analysis showed that the results were stable and credible.
CONCLUSION
Due to the limitations of this study, the findings need to be treated with caution. And, to better prevent the postpartum weight retention, future practice and research need to further focus on upstream modifiable factors.
Topics: Humans; Female; Postpartum Period; Pregnancy; Delivery, Obstetric; Adult; Weight Gain; Cesarean Section; Risk Factors
PubMed: 38574440
DOI: 10.1016/j.midw.2024.103981 -
The Journal of Asthma : Official... Apr 2024It is believed that gut microbiota alteration leads to both intestinal and non-intestinal diseases in children. Since infants inherit maternal microbiota during... (Review)
Review
OBJECTIVE
It is believed that gut microbiota alteration leads to both intestinal and non-intestinal diseases in children. Since infants inherit maternal microbiota during pregnancy and lactation, recent studies suggest that changes in maternal microbiota can cause immune disorders as well. This systematic review was designed to assess the association between the child and mother's gut microbiome and allergy development in childhood.
DATA SOURCES
In this systematic review, international databases including PubMed, Scopus, and ISI/WOS were searched until January 2023 to identify relevant studies.
STUDY SELECTIONS
Observational studies that analyzed infant or maternal stool microbiome and their association with allergy development in children were included in this study. Data extraction and quality assessment of the included studies were independently conducted by two researchers.
RESULTS
Of the 1694 papers evaluated, 21 studies examined neonate gut microbiome by analyzing stool samples and six studies examined maternal gut microbiota. A total of 5319 participants were included in this study. Asthma followed by eczema and dermatitis were the most common allergy disorders among children. Urbanization caused a lack of diversity in the bacterial microbiota as well as lower levels of Bifidobacterium and Lachnospira associated with a higher risk of allergy. In contrast, higher levels of and were associated with lower allergy risk.
CONCLUSIONS
This systematic review shows that gut microbiota may be associated with allergy development. Further studies are required to provide a definitive answer.
PubMed: 38506489
DOI: 10.1080/02770903.2024.2332921 -
American Journal of Obstetrics &... May 2024This study aimed to identify evidence-based peripartum interventions for people with a body mass index ≥40 kg/m. (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
This study aimed to identify evidence-based peripartum interventions for people with a body mass index ≥40 kg/m.
DATA SOURCES
PubMed, MEDLINE, EMBASE, Cochrane, CINAHL, and ClinicalTrials.gov were searched from inception to 2022 without date, publication type, or language restrictions.
STUDY ELIGIBILITY CRITERIA
Cohort and randomized controlled trials that implemented an intervention and evaluated peripartum outcomes of people with a body mass index ≥40 kg/m were included. The primary outcome depended on the intervention but was commonly related to wound morbidity after cesarean delivery (ie, infection, separation, hematoma).
METHODS
Meta-analysis was completed for interventions with at least 2 studies. Pooled risk ratios with 95% confidence intervals and heterogeneity (I statistics) were reported.
RESULTS
Of 20,301 studies screened, 30 studies (17 cohort and 13 randomized controlled trials) encompassing 10 types of interventions were included. The interventions included delivery planning (induction of labor, planned cesarean delivery), antibiotics during labor induction or for surgical prophylaxis, 6 types of cesarean delivery techniques, and anticoagulation dosing after a cesarean delivery. Planned cesarean delivery compared with planned vaginal delivery did not improve outcomes according to 3 cohort studies. One cohort study compared 3 g with 2 g of cephazolin prophylaxis for cesarean delivery and found no differences in surgical site infections. According to 3 cohort studies and 2 randomized controlled trials, there was no improvement in outcomes with a non-low transverse skin incision. Ten studies (4 cohort and 6 randomized controlled trials) met the inclusion criteria for the meta-analysis. Two randomized controlled trials compared subcuticular closure with suture vs staples after cesarean delivery and found no differences in wound morbidity within 6 weeks of cesarean delivery (n=422; risk ratio, 1.09; 95% confidence interval, 0.75-1.59; I=9%). Prophylactic negative-pressure wound therapy was compared with standard dressing in 4 cohort and 4 randomized controlled trials, which found no differences in wound morbidity (cohort n=2200; risk ratio, 1.19; 95% confidence interval, 0.88-1.63; I=66.1%) or surgical site infections (randomized controlled trial n=1262; risk ratio, 0.90; 95% confidence interval, 0.63-1.29; I=0).
CONCLUSION
Few studies address interventions in people with a body mass index ≥40 kg/m, and most studies did not demonstrate a benefit. Either staples or suture are recommended for subcuticular closure, but available data do not support prophylactic negative-pressure wound therapy after cesarean delivery for people with a body mass index ≥40 kg/m.
Topics: Humans; Female; Pregnancy; Cesarean Section; Peripartum Period; Labor, Induced; Obesity, Morbid; Surgical Wound Infection; Randomized Controlled Trials as Topic; Anticoagulants; Body Mass Index; Antibiotic Prophylaxis; Pregnancy Complications; Delivery, Obstetric
PubMed: 38494155
DOI: 10.1016/j.ajogmf.2024.101354 -
Sleep Medicine Reviews Jun 2024Sleep is crucial for health and development. Evidence indicates that sleep changes over time and distinct subgroups may experience different longitudinal patterns. This...
Sleep is crucial for health and development. Evidence indicates that sleep changes over time and distinct subgroups may experience different longitudinal patterns. This study systematically reviewed the studies that used latent trajectory modeling to investigate sleep trajectories of children and adolescents aged 0-18 years, and summarized the associated determinants and health-related outcomes. We searched PubMed, Embase, CENTRAL, PsycINFO, and Web of Science, identifying 46 articles that met our criteria. To ensure the reliability of the review, only studies rated as good or fair in terms of methodological quality were included, resulting in a total of 36 articles. Group-based trajectories were identified on several sleep dimensions (i.e., sleep duration, general and specific sleep problems, and bed-sharing behavior) and three or four trajectories were reported in most studies. There was a convergence trend across sleep duration trajectories during the first six years of life. Studies on specific sleep problem (i.e., insomnia, night-waking, and sleep-onset difficulties) typically identified two trajectories: consistent, minimal symptoms or chronic yet fluctuating symptoms. Lower socioeconomic status, maternal depression, and night feeding behaviors were the most frequently reported determinants of sleep trajectories. Membership in a group with certain adverse patterns (e.g., persistent short sleep duration) was associated with increased risks of multiple negative health-related conditions, such as obesity, compromised immunity, neurological problems, substance use, or internalizing/externalizing symptoms. Generally, there is potential to improve the quality of studies in this field. Causality is hard to be inferred within the current body of literature. Future studies could emphasize early life sleep, incorporate more assessment timepoints, use objective measures, and employ experimental design to better understand changes of and mechanisms behind the various sleep trajectories and guide targeted interventions for at-risk subpopulations.
Topics: Adolescent; Child; Child, Preschool; Humans; Infant; Sleep; Sleep Initiation and Maintenance Disorders; Sleep Wake Disorders
PubMed: 38461678
DOI: 10.1016/j.smrv.2024.101916 -
European Journal of Obstetrics &... Mar 2024Maternal obesity has been previously linked to increased risk of preterm birth; however, the actual pathophysiology behind this observation remains unknown. Cervical... (Review)
Review
OBJECTIVE
Maternal obesity has been previously linked to increased risk of preterm birth; however, the actual pathophysiology behind this observation remains unknown. Cervical length seems to differentiate among overweight, obese and extremely obese patients, compared to normal weight women. However, to date the actual association between body mass index and cervical length remains unknown. In this systematic review, accumulated evidence is presented to help establish clinical implementations and research perspectives.
METHODS
We searched Medline, Scopus, the Cochrane Central Register of Controlled Trials CENTRAL, Google Scholar, and Clinicaltrials.gov databases from inception till February 2023. Observational studies that reported on women undergone ultrasound assessment of their cervical length during pregnancy were included, when there was data regarding their body mass index. Statistical meta-analysis was performed with RStudio. The quality of the included studies was assessed using the Newcastle-Ottawa Quality Assessment Scale (NOS).
RESULTS
Overall, 20 studies were included in this systematic review and 12 in the meta-analysis. Compared to women with normal weight, underweight women were not associated with increased risk of CL < 15 mm or < 30 mm and their mean CL was comparable (MD -1.51; 95% CI -3.07, 0.05). Overweight women were found to have greater cervical length compared to women with normal weight (MD 1.87; 95% CI 0.52, 3.23) and had a lower risk of CL < 30 mm (OR 0.65; 95% CI 0.47, 0.90).
CONCLUSION
Further research into whether BMI is associated with cervical length in pregnant women is deemed necessary, with large, well-designed, prospective cohort studies with matched control group.
PubMed: 38419650
DOI: 10.1016/j.eurox.2024.100291