Normal Gestational Weight Gain Research Articles

Incidence of excessive gestational weight gain among overweight and obese women.

To determine the incidence of excessive gestational weight gain (GWG) among overweight and obese pregnant women, its associated factors, and pregnancy outcomes. A total of 355 overweight or obese singleton pregnant women who received antenatal care and delivered at Siriraj Hospital were included. Data, including obstetric characteristics, weight gain, and pregnancy outcomes, were extracted from medical records. GWG was categorized according to the Institute of Medicine recommendation. Comparisons were made between individuals with inadequate, normal, and excessive GWG. Logistic regression analysis was performed to determine independent associated factors for excessive GWG. Majority of the women were overweight (68.7%), 38.9% were nulliparous, and mean pre-pregnancy body mass index was 28.9 kg/m2. Excessive GWG was observed in 53% of the women. Women with excessive GWG had significantly higher weight gain in every trimester. Risk of excessive GWG increased in women ≤30 years of age, while gestational diabetes (GDM) significantly decreased the risk. Women with excessive GWG had a significantly higher primary cesarean section rate. Both women with normal and excessive GWG showed higher rate of having large for gestational age (LGA) infants (P=0.003). Maternal age of ≤30 years significantly increased the risk of excessive GWG (adjusted odds ratio [OR], 1.91; 95% confidence interval [95% CI], 1.11-3.27) and GDM significantly decreased this risk (adjusted OR, 0.40; 95% CI, 0.24-0.67). The incidence of excessive GWG among overweight and obese women was 53%. Maternal age of ≤30 years significantly increased this risk while women with GDM were at significantly decreased risk. Rates of primary cesarean section and fetal LGA significantly increased in women with excessive GWG.

The influence of maternal prepregnancy weight and gestational weight gain on the umbilical cord blood metabolome: a case–control study

BackgroundMaternal overweight/obesity and excessive gestational weight gain (GWG) are frequently reported to be risk factors for obesity and other metabolic disorders in offspring. Cord blood metabolites provide information on fetal nutritional and metabolic health and could provide an early window of detection of potential health issues among newborns. The aim of the study was to explore the impact of maternal prepregnancy overweight/obesity and excessive GWG on cord blood metabolic profiles.MethodsA case control study including 33 pairs of mothers with prepregnancy overweight/obesity and their neonates, 30 pairs of mothers with excessive GWG and their neonates, and 32 control mother-neonate pairs. Untargeted metabolomic profiling of umbilical cord blood samples were performed using UHPLC‒MS/MS.ResultsForty-six metabolites exhibited a significant increase and 60 metabolites exhibited a significant reduction in umbilical cord blood from overweight and obese mothers compared with mothers with normal body weight. Steroid hormone biosynthesis and neuroactive ligand‒receptor interactions were the two top-ranking pathways enriched with these metabolites (P = 0.01 and 0.03, respectively). Compared with mothers with normal GWG, in mothers with excessive GWG, the levels of 63 metabolites were increased and those of 46 metabolites were decreased in umbilical cord blood. Biosynthesis of unsaturated fatty acids was the most altered pathway enriched with these metabolites (P < 0.01).ConclusionsPrepregnancy overweight and obesity affected the fetal steroid hormone biosynthesis pathway, while excessive GWG affected fetal fatty acid metabolism. This emphasizes the importance of preconception weight loss and maintaining an appropriate GWG, which are beneficial for the long-term metabolic health of offspring.

The Influence of Gestational Diabetes Mellitus on Maternal and Neonatal Outcomes: A Retrospective Study in Rzeszów, Poland.

BACKGROUND Gestational diabetes mellitus (GDM) affects 5.8-12.9% of pregnant women, while pre-gestational diabetes mellitus (PGDM) affects 0.4-1.1%. GDM increases the risk of perinatal complications and long-term health issues. This retrospective study from a single centre in Rzeszów, Poland aimed to evaluate maternal and neonatal outcomes of pregnancy of 65 women with gestational diabetes mellitus. MATERIAL AND METHODS The study group consisted 65 women with GDM. The control group consisted 60 women without. GDM were diagnosed with carbohydrate metabolism disorders during pregnancy based on the results of the oral glucose tolerance test (OGTT). Methods of evaluation of the mothers: age, body mass before pregnancy, body height, body mass index (BMI), gravidity, parity, the number of miscarriages, length of stay (LOS) of mother, gestational weight gain (GWG), duration of pregnancy, type of delivery, treatment of diabetes. Methods of evaluation of the child: LOS, birth weight, Apgar points. RESULTS Women with diabetes stayed in hospital longer than women without, similarly applies the length of stay (LOS) of the child (p<0.001). It turned out that the women with GDM were significantly more likely to deliver by caesarean section (CS) (p=0.024) and these women most often had gestational weight gain (GWG) within the recommended range (p<0.001). Body mass index (BMI) before pregnancy was significantly higher in the women with GDM (p=0.023). CONCLUSIONS The above study confirms that the occurrence of GDM has an undoubted impact on prolonged LOS of the mother and child, more frequent CS delivery and normal GWG.

Combined effects of pre-pregnancy BMI and gestational weight gain on preterm birth: comparison between spontaneous and ART conception.

Inappropriate pre-pregnancy body mass index (BMI) and gestational weight gain (GWG) are both linked to preterm birth (PTB); however, which one plays a dominant role in PTB risk is not yet sure. We aimed to evaluate the combined effect of pre-pregnancy BMI and GWG on the risk of PTB in singleton pregnancies conceived both spontaneously and through assisted reproductive technology (ART). The data included all mothers (n = 17,540,977) who had a live singleton birth from the US National Vital Statistics System (NVSS) 2015-2019. Logistic regression models, quantile-g-computation, and generalized additive model were used to analyze the combined association of pre-pregnancy BMI and GWG with PTB. The singleton PTB rate was significantly higher in ART pregnancies (11.5%) than in non-ART pregnancies (7.9%). When compared to those women with pre-pregnancy normal weight and GWG within Institute of Medicine (IOM) guidelines, the highest PTB risk was observed in non-ART women with pre-pregnancy underweight and GWG below IOM guidelines (aOR 2.56; 95% CI 2.53-2.60) and in ART women with pre-pregnancy obese and GWG below IOM guidelines (aOR 2.56; 95%CI 2.36-2.78). GWG dominated the combined effect with its joint effect coefficient of - 0.281 (P < 0.05) in non-ART women and - 0.108 (P < 0.05) in ART women. Inappropriate GWG played a dominant role in increasing the risk of PTB in both non-ART and ART populations. Counseling regarding pre-pregnancy BMI and especially GWG appears to be even more crucial for pregnancies conceived via ART, given their impact on PTB.

Effect of pre-pregnancy body mass index and gestational weight gain on fetal outcome

Fetaldevelopment and growth in uterus is most critical. Most commonly used indicator is birth weight for determining well-being of infant. Body mass index (BMI) of mother before pregnancy, pregnancy weight gain, and other factors related to behavior, socio-cultural as well as genetics influence the birth weight. To study effect of pre-pregnancy BMI and gestational weight gain on fetal outcomeHospital-based follow-up study was carried out among 189 antenatal women. Gestational age, weight, height, BMI and fetal growth were recorded. Regular sonography was carried out to rule out fetal congenital abnormalities and fetal well-being. Daily fetal movement count, fetal heart rate monitoring was carried out daily. Estimation of the “total pregnancy weight gain” was done by subtracting last measured weight before delivery from weight recorded at first visit in first trimester. Birth weight of the neonate was recorded within 24 hours of delivery. BMI before pregnanacy was normal in Majority (75.1%). Underweight women earlier to conception had either normal Gestational weight gain (GWG) or less than normal GWG. Their babies also had significantly low average birth weight compared to either normal weight females or overweight and obese before conception. Overweight and obese females before conception had higher incidence of gestational diabetes (GDM) and cesarean section. Normal weight females before conception had higher incidence of Pregnancy induced hypertension.Being underweight before conception is a risk factor for low birth weight babies whereas being overweight and obese before pregnancy is a risk factor for GDM.

1385-P: Maternal Gestational Weight Gain and Children’s Genetic Susceptibility on Childhood Adiposity—A Longitudinal Cohort Study

Few studies have assessed the association of early-life environmental and genetic factors with the risk of childhood adiposity. The aim of the present study was to investigate the interaction between maternal gestational weight gain (GWG) and children’s genetic susceptibility on childhood adiposity. The present study included 1038 mother-child pairs. Body mass index (BMI) for age Z-score (BMI-Z) and childhood overweight were evaluated according to the World Health Organization (WHO) growth reference. Genetic risk score (GRS) was established by aggregating alleles of 10 BMI susceptibility single-nucleotide polymorphisms identified from a recent study. Children born to mothers with excessive GWG had higher BMI-Z (P&amp;lt;0.001), percentage of body fat (P&amp;lt;0.001), and prevalence of overweight (28.4% vs 15.9%, P&amp;lt;0.001) than those born to mothers with adequate GWG. Children’s BMI GRS was significantly and positively associated with BMI-Z, percentage of body fat and overweight risk (all P&amp;lt;0.05). Stratified analyses showed the positive association of children’s BMI GRS with adiposity risk was especially concentrated among mothers with pre-pregnancy normal weight but excessive GWG. The present study identified an interactive effect between maternal GWG and children’s genetic susceptibility on childhood adiposity risk. The findings provided new insight into the etiology of childhood obesity and highlighted the importance of GWG management. Disclosure H.Liu: None. W.Li: None. L.Wang: None. S.Zhang: None. W.Li: None. X.Yang: None. J.Leng: None. G.Hu: None. S.Wang: None. Funding European Foundation for the Study of Diabetes/Chinese Diabetes Society/Lilly Programme for Collaborative Research between China and Europe; National Institute of Diabetes and Digestive and Kidney Diseases (R01DK100790, R01DK132011); National Institute of General Medical Sciences (U54GM104940)

A new care pathway to optimize gestational weight gain in twin pregnancies

Maternal gestational weight gain (GWG) is an important determinant of pregnancy outcomes and may have an even greater role in twin pregnancies due to the higher rate of pregnancy complications and greater nutritional demands. However, data on the optimal week-specific GWG in twin pregnancies and interventions that should be taken in cases of inadequate GWG are limited. To determine whether a new care pathway that involves monitoring GWG using a week-specific chart along with a standardized protocol for managing cases with inadequate GWG can optimize maternal GWG in twin pregnancies. In this study, patients with twin pregnancies followed in a single tertiary center between Feb-2021 and May-2022 were exposed to the new care pathway (post-intervention group). GWG and clinical outcomes were compared with a previously described cohort of patients with twins followed in our clinic before the implementation of the new care pathway (pre-intervention group). The new care pathway targeted patients and care providers and included educational material, a newly developed BMI-group-specific GWG chart, and a stepwise management algorithm in cases of inadequate GWG. The BMI-group-specific GWG charts were divided into three zones: (1) green zone (optimal GWG, at 25th-75th centiles); (2) yellow zone (suboptimal GWG, at 5th-24th or 76th-95th centiles); and (3) gray zone (abnormal GWG, at <5th or >95th centile). The primary outcome was the overall proportion of patients achieving optimal GWG at birth. A total of 123 patients were exposed to the new care pathway and were compared with 1079 patients from the pre-intervention period. Patients in the post-intervention group were more likely to achieve optimal GWG at birth (60.2% vs. 47.7%; adjusted odds ratio [aOR] 1.91, 95%-confidence interval [CI] 1.28.2.86) and were less likely to achieve low suboptimal GWG (7.3% vs. 14.7%; aOR 0.41, 95%-CI 0.20-0.85) or any suboptimal GWG (26.8% vs. 34.8%; aOR 0.60, 95%-CI 0.39-0.93) at birth. In addition, patients in the post-intervention group were less likely to experience low-abnormal GWG anytime during gestation (18.9% vs. 29.1%, p=0.017) and were more likely to experience normal GWG throughout pregnancy (21.3% vs. 14.0%, p=0.031) or high-abnormal GWG anytime during gestation (18.0% vs. 11.1%, p=0.025), suggesting that the care pathway is more effective than the standard care in preventing patients from moving into the low-abnormal zone than the high-abnormal zone. Furthermore, the new care pathway was more effective than the standard care in correcting high-suboptimal GWG and high-abnormal GWG. Our findings suggest that the new care pathway may be effective in optimizing maternal GWG in twin gestations, which may, in turn, contribute to better clinical outcomes. This is a simple, low-cost intervention that can be easily disseminated among providers caring for patients with twin pregnancies.

Meta Analysis: Effect of Inadequate Gestational Weight Gainon Low Birth Weight and Small for Gestational Age

Background:Weight gain during pregnancy is related to optimizing health for both mother and baby. In addition, the increase in pregnancy weight is also an important indicator of maternal nutri-tion fulfillment during pregnancy and is a good measure to monitor fetal growth. This study aims to estimate the average effect of inadequate gestational weight gain on the risk of low birth weight and small for gestational age. Subjects and Method: This was a systematic review and meta-analysis with PRISMA guideline and PICO model. Population: pregnant women.Intervention: inadequate gestational weight gain. Comparison: normal gestational weight gain. Outcome: low birth weight and small for gestational age. Online databases used are PubMed, SpringerLink, Scopus, and ProQuest with the keywords "Gestational Weight Gain" OR “Inadequate Weight Gain" AND "Low Birth Weight" OR "Birth Weight Infant” OR “Pregnancy Outcomes" AND "Small Gestational Age" AND"Multivariate" AND "Cohort". There were 19 cohort studies published in 2013-2022 that met the inclusion criteria. The analysis was conducted using the Review Manager 5.3 application. Results:Meta-analysis using 19 cohort studies showed that pregnant women with inadequate weight gain had a risk of giving birth to infants with low birth weight 1.94 times compared to those with normal gestational weight (aOR= 1.94; CI 95%=1.74 to 2.16; p&lt;0.001) and pregnant women with inadequate gestational weight gain had 1.69 times higherrisk of giving birth to infants with small for gestational age than those with normal gestational weight (aOR= 1.69;95%CI= 1.55 to 1.85; p&lt;0.001). Conclusion: Inadequate gestational weight gain increases the risk of low birth weight and small for gestational age. Keywords:Pregnant women, gestational weight gain, low birth weight, small for gestational age

Pre-Pregnancy Body Mass Index and Gestational Weight Gain as Risk Factors for Low Birth Weight

Low weight (LBW) is one of the perinatal complications with high infant mortality and morbidity. At Wonosamodro District in 2018, 4.8% of babies were born with LBW. One of the risk factors for LBW is maternal nutritional factors. This study aims to analyze the correlation between pre-pregnancy body mass index (BMI) and gestational weight gain with the incidence of low birth weight. This study was an analytic observational study using a case-control design. The population was all infants and toddlers with a history of LBW in the case group and normal birth weight (NBW) in the control group in Wonosamodro Sub-District, Boyolali District, born from September 2015 to September 2020. There were 102 samples with consecutive and matching sampling. The characteristics of respondents, BMI, and gestational weight gain processing were done by editing, coding, entry, cleaning, and tabulating. Then, the data analysis used the chi-square test. The study's results at 5% alpha showed that gestational weight gain significantly correlated with LBW incidence (p=0.000). Meanwhile, pre-pregnancy BMI did not significantly correlate with LBW (p=0.096). Mothers with less gestational weight were 5.3 times at risk of delivering LBW babies than mothers with normal gestational weight gain (OR =5.318 95% CI 2.122-13.326). Maternal weight gain during pregnancy is a risk factor for LBW in Wonosamodro Subdistrict, Boyolali District, while pre-pregnancy BMI is not. Further research should use the primary data collection method, a cohort design, a more significant number of samples, and random sampling and examine other variables.

Association of pre-pregnancy body mass index and gestational weight gain with neonatal anogenital distance in a Chinese birth cohort

BackgroundThis study aimed to investigate the associations of pre-pregnancy body mass index (BMI) and gestational weight gain (GWG) with anogenital distance (AGD) among newborns.MethodsThe study included 556 mother-newborn pairs from the Jiashan birth cohort. AGD was measured as AGDAP (from the center of the anus to the anterior base of the penis, where the penile tissue meets the pubic bone) and AGDAS (from the center of the anus to the posterior base of the scrotum, where the skin changes from rugate to smooth) in males and AGDAC (from the center of the anus to the clitoris) and AGDAF (from the center of the anus to the posterior convergence of the fourchette) in females. Multiple linear regression models were used to estimate the associations of pre-pregnancy BMI and GWG, with AGD.ResultsAfter adjusting for pre-pregnancy BMI and other potential confounders, male newborns whose mothers had excessive GWG had shorter AGDAP than those whose mothers had normal GWG. Male newborns whose mothers had normal pre-pregnancy BMI and inadequate/excessive GWG had shorter AGDAP than the reference group where mothers had normal pre-pregnancy BMI and GWG in stratified analyses.ConclusionGestational weight gain during pregnancy was associated with AGD in newborns in this birth cohort.

Understanding Determinants of Pregnant Women's Knowledge of Lifestyle-Related Risk Factors: A Cross-Sectional Study.

Research indicates that a woman’s lifestyle during pregnancy influences her child’s health and development. Therefore, women need to possess sufficient knowledge regarding the elements of a healthy lifestyle during pregnancy. To date, there has been little research on the assessment of lifestyle knowledge of pregnant women in the perinatal healthcare setting. This study describes the development and application of a knowledge-based questionnaire for pregnancy to be used in a lifestyle intervention trial conducted in Germany. Within the trial, pregnant women receive counselling on lifestyle topics. These topics are based on the German initiative ‘Healthy Start—Young Family Network’ (GiL), which provides evidence-based recommendations regarding diet and lifestyle before and during pregnancy. These serve as a basis for health professionals who provide counselling on healthy lifestyle choices during the antenatal period. The questionnaire consists of eight items, each of which can be answered using ‘Yes’, ‘No’ or ‘Don’t know’. The pregnant women who completed the questionnaire at baseline around the twelfth week of gestation were recruited within the host trial from gynaecological practices in Germany. Demographic variables and the respondents’ answers to the questionnaire were analysed using descriptive statistics and regression analyses. Descriptive statistics show that more than 85% of participants answered the majority of questions (n = 5) correctly. Questions on whether tap water is safe and the normal range for gestational weight gain (GWG) were answered correctly by about 62% and 74% of the women, respectively, and the question on whether it is beneficial to obtain information on breastfeeding at an early stage was answered correctly by about 29%. The results of the regression analyses indicate that age, gestational week, education and income are positive predictors for answering the questionnaire correctly. Nullipara and migration background are predictors for answering the questions incorrectly. This study indicates that there are gaps in women’s knowledge regarding lifestyle during pregnancy. Particular focus on certain topics, such as breastfeeding and normal GWG ranges, is still required during counselling. Our analysis shows that migration background is a predictor of insufficient knowledge and incorrect answers to the questions. Women with such backgrounds require special attention during antenatal counselling in order to cater to their needs and the gaps in their knowledge.

Interaction Between Pre-pregnancy Body Mass Index and Gestational Weight Gain to Newborn Outcomes: Results From the VDPM Cohort Study in Indonesia

ObjectivesThe aim of this study was to analyze the interaction between pre-pregnancy body mass index (PP BMI), gestational weight gain (GWG), and newborn outcomes among pregnant mothers in West Sumatera, Indonesia. MethodsThis VDPM cohort study was conducted from September 2017 to March 2018 in West Sumatra, Indonesia. We obtained 195 healthy mother-infant pairs. GWG status created by comparing PP BMI and GWG guidelines based on the World Health Organization (WHO). Newborn birth weight, birth length, and head circumference were taken immediately after delivery as pregnancy outcomes. SPSS version 20.0 was used to analyze bivariate and multivariate analysis to assess the interaction between PP BMI and gestational weight gain in pregnancy outcomes with adjusting potential confounders. A P-value less than 0.05 was considered as a significant association. ResultsOf the 195 mother-infant pairs (Mean 29.66 years) included in the main sample, Most of the mothers had 46.7% normal PP BMI with most of them had an inadequate GWG status during pregnancy with 53.3%. Adequate and excessive GWG statuses were 34.4% and 12.3%, respectively. There was a significant association between PP BMI and GWG (p < 0.01). This study had no interaction between PP BMI and GWG to the newborn outcomes (p > 0.05). Adverse newborn outcomes were not statistically significant among groups. However, mothers who had inadequate GWG status may have significant lower birth weight and head circumference compared to normal and excessive GWG status (p < 0.05). ConclusionsThis study had no interaction between PP BMI and GWG status to newborn outcomes. However, the GWG status associated with newborn outcomes in birth weight and head circumference level. Further prospective studies with a larger number are required to confirm this finding. Funding SourcesIndonesian Danone Institute Foundation.

Normal Gestational Weight Gain Protects From Large-for-Gestational-Age Birth Among Women With Obesity and Gestational Diabetes.

Background: Pre-pregnancy obesity, excess gestational weight gain (GWG), and gestational diabetes (GDM) increase fetal growth. Our aim was to assess whether normal GWG is associated with lower risk for a large-for-gestational-age (LGA; over the 90th percentile of birth weight for sex and gestational age) infant and lower birth weight standard deviation (SD) score in the presence of GDM and maternal obesity.Methods: This multicenter case-control study is part of the Finnish Gestational Diabetes (FinnGeDi) Study and includes singleton pregnancies of 1,055 women with GDM and 1,032 non-diabetic controls. Women were divided into 12 subgroups according to their GDM status, pre-pregnancy body mass index (BMI; kg/m2), and GWG. Non-diabetic women with normal BMI and normal GWG (according to Institute of Medicine recommendations) served as a reference group.Results: The prevalence of LGA birth was 12.2% among women with GDM and 6.2% among non-diabetic women (p < 0.001). Among all women, normal GWG was associated with lower odds of LGA [odds ratio (OR) 0.57, 95% CI: 0.41–0.78]. Among women with both obesity and GDM, the odds for giving birth to a LGA infant was 2.25-fold (95% CI: 1.04–4.85) among those with normal GWG and 7.63-fold (95% CI: 4.25–13.7) among those with excess GWG compared with the reference group. Compared with excess GWG, normal GWG was associated with 0.71 SD (95% CI: 0.47–0.97) lower birth weight SD score among women with GDM and obesity. Newborns of normal weight women with GDM and normal GWG had 0.28 SD (95% CI: 0.05–0.51) lower birth weight SD scores compared with their counterparts with excess GWG. In addition, in the group of normal weight non-diabetic women, normal GWG was associated with 0.46 SD (95% CI: 0.30–0.61) lower birth weight SD scores compared with excess GWG.Conclusion: GDM, obesity, and excess GWG are associated with higher risk for LGA infants. Interventions aiming at normal GWG have the potential to lower LGA rate and birth weight SD scores even when GDM and obesity are present.

Gestational obesity and subclinical inflammation: The pathway from simple assessment to complex outcome (STROBE-compliant article).

Maternal obesity and excessive gestational weight gain (GWG) are associated with pregnancy-related complications, poor birth outcomes, and increased birth weight (BW).The aims of this study were to assess the relationship between excessive GWG and gestational inflammatory status in terms of blood parameters, as well as its influence on newborn's outcomes.We performed a prospective study on 176 pregnant women divided into 2 groups depending on the GWG: group 1—normal GWG, 80 cases; and group 2—high GWG, 96 cases. The statistical analysis was performed using the GraphPad Prism program, trial variant. We performed a thorough anamnesis and clinical examination in all mothers and their newborns, as well as an assessment of multiple laboratory parameters.The levels of both platelets and triglycerides were significantly higher in pregnant women from high GWG group (P = .0165/P = .0247). The newborns whose mothers presented an excessive GWG were found with a significantly higher BW as compared to those with normal GWG mothers (P = .0023). We obtained a positive correlation between the mothers’ and newborns’ values for hemoglobin, high-density lipoprotein, leucocytes, and platelets/lymphocytes ratio (P = .0002/P = .0313/P = .0137). Moreover, a significant positive correlation was found between GWG and BW (r = 0.2049, 95% CI: 0.0588–0.3425, P = .0064).Our findings sustain the hypothesis that maternal obesity is a risk factor for macrosomia and childhood obesity since we found a positive correlation between GWG and BW. Women with high GWG expressed significantly higher levels of platelets and triglycerides suggesting a subclinical inflammation associated to excessive fat accumulation. The inflammation transfer from mother to fetus in our study was suggested by the positive correlations between maternal and neonatal leukocytes and platelets/lymphocytes ratio.

SERUM GLP-2 is Increased in Association with Excess Gestational Weight Gain.

Obesity in pregnancy bears unique maternal and fetal risks. Obesity has also been associated with chronic inflammation, including elevated serum levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α). Higher serum lipopolysaccharide (LPS) levels have been implicated in driving this inflammation, a phenomenon called metabolic endotoxemia (ME). GLP-2, a proglucagon-derived peptide, is believed to be integral in maintaining the integrity of the intestine in the face of LPS-mediated endotoxemia. We hypothesized that obesity and/or excess weight gain in pregnancy would be associated with an increase in maternal and neonatal markers of ME, as well as GLP-2. Paired maternal and neonatal (cord blood) serum samples (n = 159) were obtained from our pregnancy biobank repository. Serum levels of LPS, endotoxin core antibody-immunoglobulin M (EndoCAb-IgM), and GLP-2 were measured by ELISA. IL-6 and TNF-α were measured using a Milliplex assay. Results were stratified by maternal body mass index (BMI), maternal diabetes, and gestational weight gain (GWG). Maternal IL-6 is significantly decreased in the obese, diabetic cohort compared with the nonobese, nondiabetic cohorts (95.28 vs. 99.48 pg/mL, p = 0.047), whereas GLP-2 is significantly increased (1.92 vs. 2.89 ng/mL, p = 0.026). Neonatal TNF-α is significantly decreased in the obese cohort compared with the nonobese cohort (12.43 vs. 13.93 pg/mL, p = 0.044). Maternal GLP-2 is significantly increased in women with excess GWG compared with those with normal GWG (2.27 vs. 1.48 ng/mL, p = 0.014). We further found that neonatal IL-6 and TNF-α are negatively correlated with maternal BMI (-0.186, p = 0.036 and -0.179, p = 0.044, respectively) and that maternal and neonatal IL-6 showed a positive correlation (0.348, p < 0.001). Although we observed altered levels of markers of inflammation (IL-6 and TNF-α) with maternal obesity and diabetes, no changes in LPS or endoCAb-IgM were observed. We hypothesize that the increased GLP-2 levels in maternal serum in association with excess GWG may protect against ME in pregnancy. · Maternal serum levels of GLP-2, a proglucagon-derived peptide, are increased in obese, diabetic gravidae.. · Maternal serum GLP-2 levels are also increased in association with excess gestational weight gain compared with normal gestational weight gain.. · GLP-2 may be increased in association with obesity and weight gain to protect against metabolic endotoxemia in pregnancy..

Maternal Obesity and Risk of Low Birth Weight, Fetal Growth Restriction, and Macrosomia: Multiple Analyses.

The associations between maternal pre-pregnancy obesity and low birth weight (LBW, <2500 g) remain inconclusive. Therefore, birth weight in a Polish prospective cohort of 912 mothers was investigated depending on the pre-pregnancy body mass index (BMI). The whole cohort and the subgroup of gestational weight gain (GWG) in the range of the Institute of Medicine (IOM) recommendations, as well as ‘healthy’ women (who did not develop diabetes or hypertension in this pregnancy) were investigated. Adjusted odds ratios (AOR) of the newborn outcomes (with 95% confidence intervals, CI) for obesity (BMI ≥ 30 kg/m2) vs. normal BMI (18.5−24.9 kg/m2) were calculated using multiple logistic regression. Risk profiles (in the Lowess method) were presented for BMI values (kg/m2) and threshold BMI values were calculated. (1) In the cohort, LBW affected 6.6% of pregnancies, fetal growth restriction (FGR) 2.3%, and macrosomia 10.6%. (2) The adjusted risk of macrosomia was more than three-fold higher for obesity compared to normal BMI in the whole cohort (AOR = 3.21 (1.69−6.1), p < 0.001) and the result was maintained in the subgroups. A 17-fold higher adjusted LBW risk for obesity was found (AOR = 17.42 (1.5−202.6), p = 0.022), but only in the normal GWG subgroup. The FGR risk profile was U-shaped: in the entire cohort, the risk was more than three times higher for obesity (AOR = 3.12 (1.02−9.54), p = 0.045) and underweight (AOR = 3.84 (1.13−13.0), p = 0.031). (3) The risk profiles showed that the highest BMI values were found to be associated with a higher risk of these three newborn outcomes and the threshold BMI was 23.7 kg/m2 for macrosomia, 26.2 kg/m2 for LBW, and 31.8 kg/m2 for FGR. These results confirm the multidirectional effects of obesity on fetal growth (low birth weight, fetal growth restriction, and macrosomia). The results for LBW were heavily masked by the effects of abnormal gestational weight gain.

Prepregnancy BMI, gestational weight gain and risk of childhood atopic dermatitis: A systematic review and meta-analysis.

Maternal weight before and during pregnancy influences the health of offspring. Several observational studies have investigated a link between the risk of childhood atopic dermatitis (AD) and prepregnancy maternal body mass index (BMI) and gestational weight gain (GWG), but the conclusions of these studies were inconsistent. The aim of this review was to evaluate the association between the risk of childhood AD and prepregnancy maternal BMI and GWG. The PubMed, Embase, Cochrane, Web of Science, and Scopus databases were searched from inception to February 2, 2021. Observational studies investigating the association between the risk of childhood AD and prepregnancy maternal BMI and GWG were included. Fixed- or random-effects models with inverse variance weights were used to calculate pooled risk estimates. Subgroup analysis and sensitivity analysis were used to explore the sources of heterogeneity. Thirteen studies with a total of 114485 participants were included. Ten studies reported prepregnancy maternal BMI, and five reported GWG. Maternal underweight was associated with a higher risk of childhood AD (odds ratio [OR]=1.06; 95% confidence interval [CI], 1.02-1.10). Continuous BMI was not related to childhood AD (OR=1.00; 95% CI, 0.98-1.02). In comparison with normal GWG, moderate/very high GWG increased the risk of childhood AD (OR=1.05; 95% CI, 1.02-1.08; OR=1.13; 95% CI, 1.07-1.19, respectively), while low GWG decreased the risk (OR=0.92; 95% CI, 0.89-0.96). Excessive GWG relative to recommendations was associated with a higher risk of childhood AD (OR=1.05; 95% CI, 1.01-1.10), while a lower risk of childhood AD was associated with inadequate GWG relative to recommendations (OR=0.87, 95% CI: 0.83-0.91). Maternal underweight, high GWG, and excessive GWG relative to recommendations are associated with an elevated risk of childhood AD, while low GWG and inadequate GWG relative to recommendations decreased the risk. Weight management before and during pregnancy is encouraged for primary prevention of childhood AD.

Pregnancy weight gain may affect perinatal outcomes, quality of life during pregnancy, and child-bearing expenses: an observational cohort study.

We aimed to examine the effect of gestational weight gain (GWG) on perinatal outcomes, quality of life (QoL) during pregnancy, and medical costs of childbirth. The observational cohort comprised 2210 pregnant women who were classified into three groups based on their pre-pregnancy body mass index (BMI) and GWG in relation to the 2020 Institute of Medicine (IOM) recommendations. The data were collected on perinatal outcomes, urinary incontinence (UI) during pregnancy, changes in sexual function, and medical costs of hospitalization for delivery. Univariate and multivariable logistic regression models were employed to explore those associations. Only 42.1% of women met the 2020 IOM guidelines. After adjustments for potential confounding factors, women with above-normal GWG had adverse pregnancy outcomes, including a large fetal head circumference and macrosomia, and women with below-normal GWG were more likely to deliver low-birthweight fetuses preterm than women with normal GWG. Only 16.8% of women reported sexual activity during pregnancy. There were not significant differences in sexual activity and satisfaction, or QoL among the three GWG groups. Child-bearing expenses were higher for women with above-normal GWG than for women with normal GWG. Although the child-bearing expenses were higher for the above-normal GWG, the proportion of women with expenses above the median increased according to pre-pregnancy BMI. Our results show that inappropriate GWG is associated with a greater risk of adverse perinatal outcomes and increased medical expenses for delivery. Healthcare providers are advised to counsel women to maintain their GWG following the 2020 IOM recommendations throughout pregnancy.

Periodontal status of women with excessive gestational weight gain and the association with their newborns’ health

The aim of this study was to assess the association between high gestational weight gain and systemic and periodontal status of women between the 32nd and 36th gestational weeks of pregnancy (T1) and after delivery (T2), and the association of these factors with newborns' health. The sample was divided into excessive gestational weight gain (GE=25) and normal gestational weight gain (GN=25) and was evaluated regarding: (i) socio-economic status; (ii) systemic and periodontal status; and (iii) newborns' health. The results were analysed using the Mann-Whitney U-test, the t-test, the Friedman test, analysis of variance (ANOVA) and Cochran's Q test (P<0.05). Women with GE had lower household income (P=0.010) and higher body mass index (BMI) at both T1 and T2. The prevalence of hypertension at T1 was higher in women with GE, but the condition resolved post-delivery (P=0.001). Worsening in oral hygiene was observed at T2 in both groups (P<0.001). Sixty-eight percent of women with GE and 16% of women with GN had periodontitis at T1, and 52% and 12%, respectively, had periodontitis at T2. In women with GE, the BMI of newborns was higher (P=0.031). Women with high gestational weight gain also showed a high prevalence of hypertension and periodontitis during pregnancy, and persistent periodontitis after delivery. High gestational weight gain was related to high BMI of newborns.

Effect of maternal weight gain according to the Institute of Medicine recommendations on pregnancy outcomes in a Chinese population.

ObjectiveThis study aimed to analyze the effects of maternal weight on adverse pregnancy outcomes.MethodsData were retrospectively collected from a hospital in Wuhan, China. A total of 1593 pregnant women with singletons were included. Adverse outcomes during pregnancy, such as small for gestational age (SGA), large for gestational age (LGA), and hypertensive disorders in pregnancy (HDP) were analyzed.ResultsThe risks of low birth weight, SGA, and preterm birth were significantly higher in the inadequate gestational weight gain (GWG) group compared with the adequate GWG group. GWG over the guidelines was related to a higher risk of macrosomia, LGA, cesarean section, and HDP than GWG within the guidelines. The risks of low birth weight (OR = 5.082), SGA (OR = 3.959), preterm birth (OR = 3.422), and gestational diabetes mellitus (OR = 1.784) were significantly higher in women with a normal pre-pregnancy body mass index (BMI) and inadequate GWG compared with women with a normal pre-pregnancy BMI and adequate GWG. The risks of macrosomia (OR = 3.654) and HDP (OR = 1.992) were increased in women with normal pre-pregnancy BMI and excessive GWG.ConclusionWomen with an abnormal BMI and inappropriate GWG have an increased risk of adverse maternal and infant outcomes. Weight management during the perinatal period is required.