Associations of childhood adiposity with menstrual irregularity and polycystic ovary syndrome in adulthood: the Childhood Determinants of Adult Health Study and the Bogalusa Heart Study.
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ABSTRACT:
SUBMITTER: He Y
PROVIDER: S-EPMC7259370 | biostudies-literature | 2020 May
REPOSITORIES: biostudies-literature
Publications
Associations of childhood adiposity with menstrual irregularity and polycystic ovary syndrome in adulthood: the Childhood Determinants of Adult Health Study and the Bogalusa Heart Study.
He Y Y Tian J J Blizzard L L Oddy W H WH Dwyer T T Bazzano L A LA Hickey M M Harville E W EW Venn A J AJ
Human reproduction (Oxford, England) 20200501 5
<h4>Study question</h4>Is high adiposity in childhood associated with menstrual irregularity and polycystic ovary syndrome (PCOS) in later life?<h4>Summary answer</h4>Overall, greater childhood BMI was associated with menstrual irregularity, and greater childhood BMI and waist/height ratio (WHtR) in white but not black participants were associated with PCOS in adulthood.<h4>What is known already</h4>Increased childhood BMI has been associated with irregular menstrual cycles and PCOS symptoms in ...[more]
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Project description:AimsPrior meta-analyses indicate polycystic ovary syndrome (PCOS) is associated with cardiovascular diseases (CVDs), but have high statistical heterogeneity, likely because PCOS is a heterogenous syndrome diagnosed by having any two of the three components: hyperandrogenism, oligomenorrhea/menstrual irregularity or polycystic ovaries. Several studies report higher risk of CVDs from individual PCOS components, but a comprehensive assessment of how each component contributes to CVD risk is lacking. This study aims to assess CVD risk for women with one of the PCOS components.Methods and resultsA systematic review and meta-analysis of observational studies was conducted. PubMed, Scopus, and Web of Science were searched without restrictions in July 2022. Studies meeting inclusion criteria examined the association between PCOS components and risk of a CVD. Two reviewers independently assessed abstracts and full-text articles, and extracted data from eligible studies. Where appropriate, relative risk (RR) and 95% confidence interval (CI) were estimated by random-effects meta-analysis. Statistical heterogeneity was assessed using the I2 statistic. Twenty-three studies, including 346 486 women, were identified. Oligo-amenorrhea/menstrual irregularity was associated with overall CVD (RR = 1.29, 95%CI = 1.09-1.53), coronary heart disease (CHD) (RR = 1.22, 95%CI = 1.06-1.41), and myocardial infarction (MI) (RR = 1.37, 95%CI = 1.01-1.88) but not cerebrovascular disease. These results were broadly consistent even after further adjustment for obesity. There was mixed evidence for the role of hyperandrogenism in CVDs. No studies examined polycystic ovaries as an independent exposure for CVD risk.ConclusionOligo-amenorrhea/menstrual irregularity is associated with greater risk of overall CVD, CHD, and MI. More research is needed to assess the risks associated with hyperandrogenism or polycystic ovaries.
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Project description:PurposeTCF7L2 mediated Wnt signaling cascade regulates glucose homeostasis by orchestrating expression, processing, and hepatic clearance of insulin. Type 2 diabetes mellitus (T2DM) and polycystic ovary syndrome (PCOS) significantly overlap in pathophysiological features with insulin resistance as a central driver. While TCF7L2 is the most potent T2DM locus, studies on the association of TCF7L2 with PCOS are limited and inconclusive. Therefore, in addition to expression profiling, the association of TCF7L2 polymorphic variant rs7903146 with PCOS was evaluated.MethodsUsing Rotterdam-2003 criteria for the diagnosis, 120 PCOS cases, and 120 age-matched controls were recruited. Subjects underwent clinical, biochemical, and hormonal assessment, followed by genotyping for rs7903146, carried out by PCR-RFLP and TCFL2 expression profiling by qRT-PCR. Genotype-phenotype correlation analysis was performed to evaluate any such associations. Odds ratios (ORs) with 95% confidence intervals (95% CIs) were computed by conditional logistic regression.ResultsHigher odds of developing PCOS were observed in the women having a family history (FH) of either T2DM (OR = 3.86, 95% CI:1.90 - 7.83), hirsutism (OR = 4.74. 95%CI: 1.91 - 17.21) or menstrual irregularities (MI) (OR = 3.07, 95%CI: 1.61 - 8.54). The genotypes of rs7903146 did not confer any risk for developing PCOS (OR = 0.46;95%CI: 0.15 - 2.03). However, the elevated risk was seen in the subjects who harbored the variant allele and had FH of either T2DM (OR = 6.71; 95%CI: 1.89 - 23.78) or MI (OR = 9.71; 95% CI:1.89 - 23.78).ConclusionTCF7L2 polymorphic variant rs7903146 is not independently linked to PCOS risk, but modulates the risk in the subjects having a family history of either T2DM or MI.Supplementary informationThe online version contains supplementary material available at 10.1007/s40200-022-01050-y.
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Project description:Abstract The recent International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome (PCOS) recommended healthy lifestyle interventions (dietary, exercise, behavioral modification, or combined) as the first-line therapy to mediate favorable metabolic outcomes in PCOS. However, the relationship between lifestyle modifications and reproductive health in PCOS is less clear. Specifically, a favorable dietary composition to facilitate reproductive changes in women with PCOS remains unknown. Further, the longitudinal impacts of lifestyle change programs in women with PCOS is poorly elucidated. We hypothesized that a low glycemic index pulse-based diet containing lentils, beans, split peas, and chickpeas would be more effective than the Therapeutic Lifestyle Changes (TLC) diet at improving insulin sensitivity without an energy-restricted protocol and would improve reproductive health outcomes in women with PCOS after a 16-week intervention. Our objective was to compare the effects of a nutritionally balanced pulse-based diet with the TLC diet on ultrasonographic markers of ovarian morphology, hyperandrogenism, and menstrual irregularity. Women (n=30) randomized to the pulse-based and TLC (n=31) groups completed a 16-week intervention. All women participated in aerobic exercise (minimum 5 days/week; 45 minutes/day) and received health counseling (monthly) about PCOS and the benefits of lifestyle modification. Additionally, we evaluated the effects of the intervention on the reproductive outcomes by longitudinal follow-up of all participants. Follicle numbers per ovary (FNPO, 2-9 mm), ovarian volume (OV), free androgen index (FAI), intermenstrual intervals, and insulin sensitivity (Matsuda index and homeostasis model assessment of insulin resistance [HOMA-IR] were evaluated at baseline, 16-week post-intervention, and 6- and 12-month post-intervention follow up visits. Follicle numbers per ovary (mean change ± SD, -10 ± 15), OV (-2.7 ± 4.8 mL), FAI (-3 ± 2), intermenstrual interval (-13 ± 47 days), and body mass index (BMI, -1.6 ± 4.2 kg/m2) decreased, and Matsuda index (1.1 ± 3.1) increased over time in both groups (All: P ≤ 0.01), without group-by-time interactions (All: P ≥ 0.27). Groups maintained reduced OV, FNPO, FAI, and menstrual cycles 6 months post-intervention, despite a propensity for weight regain as evidenced by increased BMI (1.0 ± 4.8 kg/m2; P < 0.01). Decreased FNPO, FAI, and HOMA-IR at 16-week tended to revert to baseline levels 12 months post-intervention in both groups (All: P ≤ 0.05). Both interventions improved ovarian dysmorphology, hyperandrogenism, and menstrual irregularity in women with PCOS. Our observations elucidate the importance of longitudinal surveillance for sustainable adherence to newly adopted healthy lifestyle behaviors and reproductive health in PCOS (ClinicalTrials.gov identifier, NCT01288638).
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