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International Journal of Molecular... Mar 2023Gestational diabetes mellitus (GDM) is a severe pregnancy complication for both the woman and the child. Women who suffer from GDM have a greater risk of developing Type... (Meta-Analysis)
Meta-Analysis Review
Gestational diabetes mellitus (GDM) is a severe pregnancy complication for both the woman and the child. Women who suffer from GDM have a greater risk of developing Type 2 diabetes mellitus (T2DM) later in life. Identification of any potential biomarkers for the early prediction of gestational diabetes can help prevent the disease in women with a high risk. Studies show microRNA (miRNA) as a potential biomarker for the early discovery of GDM, but there is a lack of clarity as to which miRNAs are consistently altered in GDM. This study aimed to perform a systematic review and meta-analysis to investigate miRNAs associated with GDM by comparing GDM cases with normoglycemic controls. The systematic review was performed according to PRISMA guidelines with searches in PubMed, Web of Science, and ScienceDirect. The primary search resulted in a total of 849 articles, which were screened according to the prior established inclusion and exclusion criteria. Following the screening of articles, the review was based on the inclusion of 35 full-text articles, which were evaluated for risk of bias and estimates of quality, after which data were extracted and relative values for miRNAs were calculated. A meta-analysis was performed for the miRNA species investigated in three or more studies: MiR-29a, miR-330, miR-134, miR-132, miR-16, miR-223, miR-155, miR-122, miR-17, miR-103, miR-125, miR-210, and miR-222. While some miRNAs showed considerable between-study variability, miR-29a, miR-330, miR-134, miR-16, miR-223, and miR-17 showed significant overall upregulation in GDM, while circulating levels of miR-132 and miR-155 were decreased among GDM patients, suggesting further studies of these as biomarkers for early GDM discovery.
Topics: Pregnancy; Child; Humans; Female; Diabetes, Gestational; Circulating MicroRNA; Diabetes Mellitus, Type 2; MicroRNAs; Biomarkers
PubMed: 37047159
DOI: 10.3390/ijms24076186 -
Pregnancy Hypertension Dec 2023Human chorionic gonadotropin (hCG), a glycoprotein produced in the placenta, is crucial for a healthy pregnancy. We investigated the relationship between hCG levels and... (Meta-Analysis)
Meta-Analysis Review
Human chorionic gonadotropin (hCG), a glycoprotein produced in the placenta, is crucial for a healthy pregnancy. We investigated the relationship between hCG levels and adverse pregnancy outcomes. We conducted a systematic review including studies measuring hCG blood levels in the first or second trimester, reporting on any of the 12 predefined adverse pregnancy outcomes with logistic regression-adjusted association estimates. The primary outcomes were placenta-associated complications, such as miscarriage, preeclampsia, intrauterine growth restriction, and preterm delivery. We searched PubMed, Embase and CINAHL Complete. The hCG levels were analysed as multiple of the median (MoM). Odds ratio (OR) and 95% confidence interval (CI) were used. Risk of bias and the certainty of evidence were assessed using ROBINS-I and GRADE, respectively. Meta-analysis also showed that hCG levels, reported as MoM ≥2/2.31/2.5, might be associated with an increased risk of preeclampsia (OR 2.08, 95% CI 1.26 to 3.44) and preterm delivery (OR 1.29, 95% CI 1.12 to 1.47), but the evidence is very uncertain. High second trimester hCG levels may be associated with preeclampsia and preterm delivery but confidence in evidence is low.
Topics: Pregnancy; Infant, Newborn; Female; Humans; Premature Birth; Pre-Eclampsia; Pregnancy Outcome; Chorionic Gonadotropin; Abortion, Spontaneous; Pregnancy Trimester, Second
PubMed: 37951184
DOI: 10.1016/j.preghy.2023.11.003 -
Mycotoxin Research May 2020Mycotoxin exposure from food occurs globally but is more common in hot humid environments, especially in low-income settings, and might affect pregnancy outcomes. This...
Mycotoxin exposure from food occurs globally but is more common in hot humid environments, especially in low-income settings, and might affect pregnancy outcomes. This study aimed to synthesize the evidence from epidemiological studies on the relationship between maternal or fetal exposure to different mycotoxins and the occurrence of adverse pregnancy outcomes. Multiple databases were systematically searched up to December 2018 to identify studies that assessed the association between mycotoxin exposure in pregnant women or fetuses and at least one pregnancy outcome. Studies were appraised and results were synthesized using standard methods for conducting systematic reviews. This review identified and included 17 relevant studies. There is some evidence to suggest that exposure to various Aspergillus mycotoxins (e.g., aflatoxin) during pregnancy may impair intrauterine fetal growth and promote neonatal jaundice. Findings were inconclusive concerning the influence of aflatoxin exposure on perinatal death and preterm birth. Only two studies assessed effects of maternal exposure to Fusarium mycotoxins (e.g., fumonisin) on adverse pregnancy outcomes. These studies found that maternal fumonisin exposure may be associated with hypertensive emergencies in pregnancy and with neural tube defects. Studies using grain farming and weather conditions as a proxy measure for mycotoxin exposure found that such exposure was associated with an increased risk of preterm birth and late-term miscarriage. In conclusion, there is already some evidence to suggest that exposure to mycotoxins during pregnancy may have detrimental effects on pregnancy outcomes. However, given the limited number of studies, especially on effects of Fusarium mycotoxins, more studies are needed for a more comprehensive understanding of the effects of different mycotoxins on maternal and fetal health and to guide public health policies and interventions.
Topics: Aflatoxins; Dietary Supplements; Female; Fumonisins; Humans; Maternal Exposure; Mycotoxins; Pregnancy; Pregnancy Complications; Pregnancy Outcome; Premature Birth
PubMed: 31989413
DOI: 10.1007/s12550-019-00384-6 -
Acta Obstetricia Et Gynecologica... May 2024Available data on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and pregnancy outcomes mostly refer to women contracting the infection during... (Meta-Analysis)
Meta-Analysis Review
INTRODUCTION
Available data on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and pregnancy outcomes mostly refer to women contracting the infection during advanced pregnancy or close to delivery. There is limited information on the association between SARS-CoV-2 infection in early pregnancy and outcomes thereof.
MATERIAL AND METHODS
We aimed to systematically review the maternal, fetal and neonatal outcomes following SARS-CoV-2 infection in early pregnancy, defined as <20 weeks of gestation (PROSPERO Registration 2020 CRD42020177673). Searches were carried out in PubMed, Medline, EMBASE, and Scopus databases from January 2020 until April 2023 and the WHO database of publications on coronavirus disease 2019 (COVID-19) from December 2019 to April 2023. Cohort and case-control studies on COVID-19 occurring in early pregnancy that reported data on maternal, fetal, and neonatal outcomes were included. Case reports and studies reporting only exposure to SARS-CoV-2 or not stratifying outcomes based on gestational age were excluded. Data were extracted in duplicate. Meta-analyses were conducted when appropriate, using R meta (R version 4.0.5).
RESULTS
A total of 18 studies, 12 retrospective and six prospective, were included in this review, reporting on 10 147 SARS-CoV-2-positive women infected in early pregnancy, 9533 neonates, and 180 882 SARS-CoV-2 negative women. The studies had low to moderate risk of bias according to the Newcastle-Ottawa quality assessment Scale. The studies showed significant clinical and methodological heterogeneity. A meta-analysis could be performed only on the outcome miscarriage rate, with a pooled random effect odds ratio of 1.44 (95% confidence interval 0.96-2.18), showing no statistical difference in miscarriage in SARS-CoV-2-infected women. Individual studies reported increased incidences of stillbirth, low birthweight and preterm birth among neonates born to mothers affected by COVID-19 in early pregnancy; however, these results were not consistent among all studies.
CONCLUSIONS
In this comprehensive systematic review of available evidence, we identified no statistically significant adverse association between SARS-CoV-2 infection in early pregnancy (before 20 weeks of gestation) and fetal, neonatal, or maternal outcomes. However, a 44% increase in miscarriage rate is concerning and further studies of larger sample size are needed to confirm or refute our findings.
Topics: Pregnancy; Infant, Newborn; Female; Humans; COVID-19; Abortion, Spontaneous; SARS-CoV-2; Prospective Studies; Retrospective Studies; Premature Birth; Pregnancy Complications, Infectious; Pregnancy Outcome
PubMed: 38200686
DOI: 10.1111/aogs.14764 -
Actas Urologicas Espanolas May 2024Stress urinary incontinence (SUI) is a common disorder in women that has a negative impact on quality of life. Pregnancy and childbirth are considered important risk... (Review)
Review
INTRODUCTION
Stress urinary incontinence (SUI) is a common disorder in women that has a negative impact on quality of life. Pregnancy and childbirth are considered important risk factors that directly affect the pelvic floor during pregnancy and labour, increasing the risk of pelvic floor dysfunction, with prevalence rates of SUI in the postpartum period ranging from 30 to 47% during the first 12 months.
OBJECTIVE
To determine the effectiveness of pelvic floor muscle training (PFMT) in the prevention of SUI in women during the antenatal and postnatal period by reviewing and evaluating the available scientific literature.
METHODS
This is a systematic review, using only randomised controlled trials. We searched the databases Pubmed, Scopus, Cochrane and PEDro. We reviewed 7 prospective studies in English and Portuguese, which included 1,401 pregnant women of legal age who underwent PFMT to prevent SUI.
RESULTS
The results allowed us to establish that PFMT is used for pelvic floor muscles and that this intervention, applied with the appropriate methodology, can prevent or cure SUI.
CONCLUSIONS
The application of PFMT in an early stage of pregnancy has positive effects on the continence capacity after delivery.
Topics: Humans; Urinary Incontinence, Stress; Female; Pelvic Floor; Exercise Therapy; Pregnancy; Randomized Controlled Trials as Topic; Pregnancy Complications
PubMed: 38556125
DOI: 10.1016/j.acuroe.2024.01.007 -
JBRA Assisted Reproduction Jul 2021Multiple sclerosis (MS) is a neurological disease that typically affects young women of reproductive age. There are still many questions and heterogeneous clinical...
Multiple sclerosis (MS) is a neurological disease that typically affects young women of reproductive age. There are still many questions and heterogeneous clinical approaches partly due to the lack of consensus and guidelines. For many years, women with MS have been discouraged from getting pregnant for fears that the disease might negatively affect the fetus or increase their obstetric risk or for claims that the disease might decrease fertility. However, fertility does not seem to be impaired to a larger extent in women with MS. Therefore, all healthcare providers involved in the follow-up of multiple sclerosis patients must be prepared to discuss future fertility, pregnancy, and others matters, in addition to providing them with the best possible counseling. This study presents data based on updated evidence and discusses fertility and pregnancy in patients with MS with respect to the impacts of pregnancy on the risk and prognostic factors tied to MS, and the impact of MS on pregnancy outcomes and fertility treatments administered to females with MS. In conclusion, a clear relationship between infertility and MS has not been established. There seems to exist a link between disease aggressiveness and progression with several processes that might impair fertility. However, MS does not stand as a contraindication to assisted reproductive technology. From the several studies analyzed, it is possible to conclude that pregnancy is possible in women with MS. It is important to discuss and plan the ideal moment to start treatment and managing pregnancy and contraception aiming at better results.
Topics: Female; Fertility; Humans; Multiple Sclerosis; Pregnancy; Pregnancy Complications
PubMed: 34061482
DOI: 10.5935/1518-0557.20210022 -
The Journal of Pediatrics Feb 2020To summarize the published evidence regarding the association between maternal infection during pregnancy and childhood leukemia. (Meta-Analysis)
Meta-Analysis
OBJECTIVE
To summarize the published evidence regarding the association between maternal infection during pregnancy and childhood leukemia.
STUDY DESIGN
In this systematic review and meta-analysis (PROSPERO number, CRD42018087289), we searched PubMed and Embase to identify relevant studies. We included human studies that reported associations of at least one measure of maternal infection during pregnancy with acute lymphoblastic leukemia (ALL) or all childhood leukemias in the offspring. One reviewer extracted the data first using a standardized form, and the second reviewer independently checked the data for accuracy. Two reviewers used the Newcastle-Ottawa Scale to assess the quality of included studies. We conducted random effects meta-analyses to pool the ORs of specific type of infection on ALL and childhood leukemia.
RESULTS
This review included 20 studies (ALL, n = 15; childhood leukemia, n = 14) reported in 32 articles. Most (>65%) included studies reported a positive association between infection variables and ALL or childhood leukemia. Among specific types of infection, we found that influenza during pregnancy was associated with higher risk of ALL (pooled OR, 3.64; 95% CI, 1.34-9.90) and childhood leukemia (pooled OR, 1.77; 95% CI, 1.01-3.11). Varicella (pooled OR, 10.19; 95% CI, 1.98-52.39) and rubella (pooled OR, 2.79; 95% CI, 1.16-6.71) infections were also associated with higher childhood leukemia risk.
CONCLUSIONS
Our findings suggest that maternal infection during pregnancy may be associated with a higher risk of childhood leukemia.
Topics: Child; Female; Global Health; Humans; Incidence; Leukemia; Pregnancy; Pregnancy Complications, Infectious; Prenatal Exposure Delayed Effects; Risk Factors
PubMed: 31810630
DOI: 10.1016/j.jpeds.2019.10.046 -
Reproductive Health Mar 2021Obstructed labor is a preventable obstetric complication. However, it is an important cause of maternal mortality and morbidity and of adverse outcomes for newborns in... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Obstructed labor is a preventable obstetric complication. However, it is an important cause of maternal mortality and morbidity and of adverse outcomes for newborns in resource-limited countries in which undernutrition is common resulting in a small pelvis in which there is no easy access to functioning health facilities with a capacity to carry out operative deliveries. Therefore, this systematic review and meta-analysis aimed to estimate the incidence, causes, and maternofetal outcomes of obstructed labor among mothers who gave birth in Ethiopia.
METHOD
for this review, we used the standard PRISMA checklist guideline. Different online databases were used for the review: PubMed, Google Scholar, EMBASE, Cochrane Library, HINARI, AFRO Library Databases, and African Online Journals. Based on the adapted PICO principles, different search terms were applied to achieve and access the essential articles. The search included all published and unpublished observational studies written only in the English language and conducted in Ethiopia. Microsoft Excel 16 was used for data entrance, and Stata version 11.0 (Stata Corporation, College Station, Texas, USA) was used for data analysis.
RESULTS
I included sixteen (16) primary studies with twenty-eight thousand five hundred ninety-one (28,591) mothers who gave birth in Ethiopia. The pooled incidence of obstructed labor in Ethiopia was 12.93% (95% CI: 10.44-15.42, I = 98.0%, p < 0.001). Out of these, 67.3% (95% CI: 33.32-101.28) did not have antenatal care follow-up, 77.86% (95% CI: 63.07-92.66) were from the rural area, and 58.52% (95% CI: 35.73- 82.31) were referred from health centers and visited hospitals after 12 h of labor. The major causes of obstructed labor were cephalo-pelvic disproportion 64.65% (95% CI: 57.15- 72.14), and malpresentation and malposition in 27.24% (95% CI: 22.05-32.42) of the cases. The commonest complications were sepsis in 38.59% (95% CI: 25.49-51.68), stillbirth in 38.08% (95% CI: 29.55-46.61), postpartum hemorrhage in 33.54% (95% CI:12.06- 55.02), uterine rupture in 29.84% (95% CI: 21.09-38.58), and maternal death in 17.27% (95% CI: 13.47-48.02) of mothers who gave birth in Ethiopia.
CONCLUSION
This systematic review and meta-analysis showed that the incidence of obstructed labor was high in Ethiopia. Not having antenatal care follow-up, rural residency, and visiting hospitals after 12 h of labor increased the incidence of obstructed labor. The major causes of obstructed labor were cephalo-pelvic disproportion, and malpresentation and malpresentation. Additionally, the commonest complications were sepsis, stillbirth, postpartum hemorrhage, uterine rupture, and maternal death. Thus, promoting antenatal care service utilization, a good referral system, and availing comprehensive obstetric care in nearby health institutions are recommended to prevent the incidence of obstructed labor and its complications.
Topics: Cephalopelvic Disproportion; Dystocia; Ethiopia; Female; Humans; Incidence; Infant, Newborn; Maternal Mortality; Obstetric Labor Complications; Pregnancy; Pregnancy Outcome; Prenatal Care; Sepsis; Uterine Rupture
PubMed: 33691736
DOI: 10.1186/s12978-021-01103-0 -
BMJ Open Aug 2023Adverse childhood experiences (ACEs) have a profound negative impact on health. However, the strength of the association between ACEs and pregnancy complications and... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Adverse childhood experiences (ACEs) have a profound negative impact on health. However, the strength of the association between ACEs and pregnancy complications and adverse pregnancy outcomes is not well quantified or understood.
OBJECTIVE
To conduct a systematic review and meta-analysis of the association between ACEs and risk of pregnancy complications and adverse pregnancy outcomes.
SEARCH STRATEGY
A comprehensive search was conducted using PubMed, Embase, CINAHL, PsycINFO, ClinicalTrials.gov and Google scholar up to July 2022.
DATA COLLECTION AND ANALYSIS
Two reviewers independently conducted the screening and quality appraisal using a validated tool. Meta-analysis using the quality-effects model on the reported odds ratio (OR) was conducted. Heterogeneity and inconsistency were examined using the I statistics.
RESULTS
32 studies from 1508 met a priori inclusion criteria for systematic review, with 21 included in the meta-analysis. Pooled analyses showed that exposure to ACEs increased the risk of pregnancy complications (OR 1.37, 95% CI 1.20 to 1.57) and adverse pregnancy outcomes (OR 1.31, 95% CI 1.17 to 1.47). In sub-group analysis, maternal ACEs were associated with gestational diabetes mellitus (OR 1.39, 95% CI 1.11 to 1.74), antenatal depression (OR 1.59, 95% CI 1.15 to 2.20), low offspring birth weight (OR 1.27, 95% CI 1.02 to 1.47), and preterm delivery (OR 1.41, 95% CI 1.16 to 1.71).
CONCLUSION
The results suggest that exposure to ACEs increases the risk of pregnancy complications and adverse pregnancy outcomes. Preventive strategies, screening and trauma-informed care need to be examined to improve maternal and child health.
Topics: Infant, Newborn; Child; Pregnancy; Female; Humans; Adverse Childhood Experiences; Pregnancy Complications; Pregnancy Outcome; Diabetes, Gestational; Premature Birth
PubMed: 37536966
DOI: 10.1136/bmjopen-2022-063826 -
The Journal of Sports Medicine and... Jul 2023Gestational diabetes mellitus (GDM) and gestational hypertension (GH) are the most common pregnancy complications, predisposing to adverse pregnancy outcomes and being a... (Meta-Analysis)
Meta-Analysis
INTRODUCTION
Gestational diabetes mellitus (GDM) and gestational hypertension (GH) are the most common pregnancy complications, predisposing to adverse pregnancy outcomes and being a major cause of maternal morbidity and mortality, often associated with significantly higher health risks for the mother and her offspring. The aim of this study was to systematically evaluate the effects of aerobic exercise performed during pregnancy on GDM, GH, and pregnancy outcomes.
EVIDENCE ACQUISITION
The databases PubMed, EMbase, Web of Science, China Knowledge Network, Wan fang, and Wipu were searched for clinical randomized controlled trials of exercise interventions on GDM, GH, and pregnancy outcomes, and data were analyzed and systematically evaluated using RevMan 5.3 according to the inclusion and exclusion criteria.
EVIDENCE SYNTHESIS
Meta-analysis showed that, in terms of pregnancy complications, aerobic exercise intervention reduced the incidence of maternal GDM better than the control group, with a statistically significant difference (OR=0.39, 95% CI: 0.30, 0.50, P<0.00001); aerobic exercise intervention reduced the incidence of maternal GH better than the control group, with a statistically significant difference (OR=0.38, 95% CI: 0.27, 0.54, P<0.00001).
CONCLUSIONS
The results in pregnancy suggest that aerobic exercise is advantageous for pregnant women, as it reduces the incidence of GDM and GH and improves the incidence of adverse pregnancy outcomes to a certain extent.
Topics: Humans; Pregnancy; Female; Diabetes, Gestational; Exercise; Pregnancy Complications; Hypertension; China
PubMed: 37067246
DOI: 10.23736/S0022-4707.23.14578-6