116 research outputs found
Vitamin D supplementation after the menopause
The purpose of this review was to assess recent evidence regarding the effects of low vitamin D levels on some highly prevalent clinical conditions of postmenopausal women. We reviewed and selected recent literature regarding menopause-related conditions associated with vitamin D deficiency and interventions to manage them. Low circulating 25-hydroxyvitamin D (25(OH)D) levels related to menopause are linked to diet, lifestyle, changes in body composition, insulin sensitivity, and reduced physical activity. Vitamin D supplementation increases serum 25(OH)D levels while normalizing parathyroid hormone and bone markers, and in women with serum 25(OH)D levels below 10 ng/ml supplementation may improve bone mineral density. Low vitamin D status has been associated with the metabolic syndrome, high triglyceride levels, and low high-density lipoprotein cholesterol levels. When compared with placebo, vitamin D supplementation may lower the risk of the metabolic syndrome, hypertriglyceridemia, and hyperglycemia. There is an inverse relationship between fat mass and serum 25(OH)D levels and, therefore, the dosage of supplementation should be adjusted according to the body mass index. Although vitamin D supplementation may improve glucose metabolism in prediabetic subjects, data regarding muscle strength are conflictive. There is evidence that vitamin D over-treatment, to reach extremely high circulating 25(OH)D levels, does not result in better clinical outcomes. The identification and treatment of vitamin D deficiency in postmenopausal women may improve their general health and health outcomes. Vitamin D supplementation should preferably be based on the use of either cholecalciferol or calcifediol
Etiopathogenesis of ovarian cancer. An inflamm-aging entity?
Ovarian cancer is one of the most common gynecologic cancers and has the highest mortality rate. The risk/protective factors of ovarian cancer suggest that its etiology is multifactorial. Several factors are involved in age-related increases in carcinogenesis, including the accumulation of senescent cells, inflammaging (a chronic inflammatory state that persists in the elderly), and immunosenescence (aging of the immune system) changes associated with poor immune surveillance. At sites of inflammation, exposure to high levels of inflammatory mediators, such as reactive oxygen species, cytokines, prostaglandins, and growth factors, contributes to increased cell division and genetic and epigenetic changes. These exposure-induced changes promote excessive cell proliferation, increased survival, malignant transformation, and cancer development. Furthermore, the proinflammatory tumor microenvironment contributes to ovarian cancer metastasis and chemoresistance. This narrative review of the literature was carried out to delineate the possible role of inflammaging in the etiopathogenesis of ovarian cancer development. We discuss the current carcinogenic hypotheses, sites of origin, and etiological factors of ovarian cancer. Treatment of inflammation may represent an attractive strategy for both the prevention and therapy of ovarian cancer. © 2022 The Author(s
Telomere length in patients with gestational Diabetes Mellitus and normoglycemic pregnant women: a systematic review and meta-analysis
We performed a systematic review and meta-analysis of studies assessing telomere length in blood leukocytes or mononuclear cells in women with gestational diabetes mellitus (GDM) and normoglycemic pregnant women (NPW) and their infants. The review protocol was registered in PROSPERO (CRD42022300950). Searches were conducted in PubMed, Embase, LILACS, CNKI, and Wang Fang, from inception through November 2022. The primary outcomes were maternal and offspring telomere length. The Newcastle-Ottawa Scale was used to assess the quality of included studies. Random-effect meta-analyses were applied to estimate standardized mean differences (SMDs) and their 95% confidence interval (CI). The meta-analysis of four studies showed no significant maternal telomere length difference (SMD = −0.80, 95% CI: −1.66, 0.05) in women with GDM compared to NPW. In the sensibility analysis omitting one study with a small sample of women, the telomere length becomes significantly reduced in women with GDM (SMD = −1.10, 95% CI: −2.18, −0.02). GDM patients had increased glucose (SMD = 0.28, 95% CI: 0.09, 0.46) and glycosylated hemoglobin than NPW (SMD = 0.62, 95% CI: 0.23, 1.01) while total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and triglycerides did not display differences between women with and without GDM. There was no significant difference in cord blood telomere length in offspring from women with GDM and NPW (SMD = 0.11, 95% CI: −0.52, 0.30). Cord blood insulin levels (SMD = 0.59, 95% CI: 0.33, 0.85) and birthweight (SMD = 0.59, 95% CI: 0.39, 0.79) were higher in offspring from pregnant women with GDM than in those from NPW. There were no significant differences in maternal and offspring telomere length between pregnancies with and without GDM
Maternal and cord blood betatrophin (angiopoietin-like protein 8) in pregnant women with gestational diabetes and normoglycemic controls: A systematic review, meta-analysis, and meta-regression
Aims: This systematic review and meta-analysis examined maternal and cord blood betatrophin levels in pregnant women with gestational diabetes mellitus (GDM) and normoglycemic controls.
Material and Methods: PubMed, Cochrane Library, Embase, LILACS, WangFang, and China National Knowledge Infrastructure were searched for literature from inception until May 2022. The primary outcomes were maternal and cord blood betatrophin levels. A random-effect meta-analysis was used to estimate the pooled results. The mean differences (MDs) or standardised MDs (SMD) and their 95% confidence intervals (CIs) were calculated. I2 tests were used to evaluate the heterogeneity. The quality of studies was evaluated using the Newcastle–Ottawa Scale.
Results: Betatrophin levels were reported in 22 studies with a total of 3034 pregnant women, and in seven studies including cord blood from 456 infants. Women with GDM display higher betatrophin levels than the normoglycemic controls (SMD = 0.85, 95% CI: 0.38–1.31) during the second half of the pregnancy. The sensitivity analysis indicated that no single study had significantly influenced the betatrophin overall outcomes. There was heterogeneity between the studies as evidenced by high I2 values. Meta-regression analysis indicated a significant regression coefficient for maternal betatrophin and glycosilated haemoglobin. There was no significant difference in cord blood betatrophin in infants from women with and without GDM (SMD = 0.34, 95% CI: −0.15–0.83). Women with GDM also had significantly higher insulin, glucose, glycosylated haemoglobin, HOMA-IR, LDL-cholesterol, HDL-cholesterol, triglycerides, and body mass index compared with the normoglycemic controls.
Conclusions: Maternal betatrophin levels were higher in women with GDM than in the normoglycemic controls. There was no difference in cord blood betatrophin
Depressive Symptoms and Resilience among Pregnant Adolescents: A Case-Control Study
Background. Data regarding depression and resilience among adolescents is still lacking. Objective. To assess depressive symptoms and resilience among pregnant adolescents. Method. Depressive symptoms and resilience were assessed using two validated inventories, the 10-item Center for Epidemiologic Studies Short Depression Scale (CESD-10) and the 14-item Wagnild and Young Resilience Scale (RS), respectively. A case-control approach was used to compare differences between adolescents and adults. Results. A total of 302 pregnant women were enrolled in the study, 151 assigned to each group. Overall, 56.6% of gravids presented total CESD-10 scores 10 or more indicating depressed mood. Despite this, total CESD-10 scores and depressed mood rate did not differ among studied groups. Adolescents did however display lower resilience reflected by lower total RS scores and a higher rate of scores below the calculated median (P < .05). Logistic regression analysis could not establish any risk factor for depressed mood among studied subjects; however, having an adolescent partner (OR, 2.0 CI 95% 1.06–4.0, P = .03) and a preterm delivery (OR, 3.0 CI 95% 1.43–6.55, P = .004) related to a higher risk for lower resilience. Conclusion. In light of the findings of the present study, programs oriented at giving adolescents support before, during, and after pregnancy should be encouraged
Relationship between handgrip strength and endogenous hormones in postmenopausal women
Objectives :This study aimed to evaluate the endogenous hormonal factors related to dominant handgrip strength (HGS) in postmenopausal women. Methods : A cross-sectional study was performed on 402 postmenopausal women aged 47 to 83 years. The following variables were recorded: age, age at menopause, smoking status, adiposity, HGS, and physical activity. Hormonal parameters (follicle-stimulating hormone, estradiol, testosterone, cortisol, dehydroepiandrosterone sulfate, ∆4 androstenedione, insulin-like growth factor-1 [IGF-1], vitamin D, and parathormone levels) were measured and results reported as odds ratios (ORs), β coefficients and 95% confidence interval (95% CI). A directed acyclic graph was used to identify potential confounding variables and was adjusted in the regression model to assess associations between endogenous hormones and HGS. Results :The mean dominant HGS was 22.8 ± 3.7 kg, and 25.6% of women had dynapenia. There were significant differences in plasma levels of follicle-stimulating hormone (OR, 0.99; 95% CI, 0.98-1.00), cortisol (OR, 1.07; 95% CI, 1.02-1.12), and dehydroepiandrosterone sulfate (OR, 0.99; 95% CI, 0.98-1.00) between women with normal HGS and those who presented with dynapenia. After adjusting for confounding variables, no significant association was found between endogenous hormones and HGS. Conclusions: Our results showed that studied ovarian steroids, adrenal hormones, IGF-1, parathormone, and vitamin D were not associated with HGS
Weight management strategies in Middle-Aged Women (MAW): Development and validation of a questionnaire based on the Oxford Food and Activity Behaviors Taxonomy (OxFAB-MAW) in a Portuguese sample
Background: The Oxford Food and Activity Behaviors (OxFAB) taxonomy
systematize the cognitive-behavioral strategies adopted by individuals who
are attempting to manage their weight. The present study aimed to (1) develop
a questionnaire based on the OxFAB taxonomy, specifically adapted for
middle-aged women—the OxFAB-MAW—stage of life and sex, which present
a high incidence of obesity, (2) assess the psychometric properties of this tool,
and (3) evaluate the discriminative power of the OxFAB-MAW (normal weight
vs. obesity).
Methods: Overall, 1,367 Portuguese middle-aged women between 45 and
65 years (M = 52.3, SD = 5.15) filled in a sociodemographic, health, and
menopause-related questionnaire, as well as the OxFAB-MAW.
Results: Confirmatory factor analysis demonstrated an acceptable model
fit (comparative fit index = 0.928, Tucker–Lewis index = 0.913, root mean
square error of approximation = 0.072, and standardized root mean square
residual = 0.054). Five domains with one item were grouped into other
domains, and the Weight Management Aids domain was also removed. The
OxFAB-MAW showed factorial, convergent, discriminant, and external validity,
as well as composite reliability.
Conclusion: The OxFAB-MAW questionnaire is a valid, reliable, and theorydriven tool for assessing weight management strategies in middle-aged
women, being able to discriminate between clinical and non-clinical groups
(normal weight vs. obesity) in several domains. This instrument can be used to gather valid and reliable data, useful in both research and clinical
settings (especially focused on structuring interventions and preventive
obesity programs within this specific life cycle stage).Fundação para a Ciência e Tecnologia - FCTinfo:eu-repo/semantics/publishedVersio
Association of Endogenous Hormones and Bone Mineral Density in Postmenopausal Women
Aim: The aim of this study was to examine the association between endogenous hormones and bone mineral density (BMD) in postmenopausal women. Materials and Methods: This was a cross-sectional study of 798 postmenopausal women aged 47-85 years. Data were collected on age, age at menopause, years since menopause, smoking status, body mass index, adiposity, BMD, physical activity, and Vitamin D supplementation. Measured hormonal parameters were: follicle-stimulating hormone (FSH), estradiol, testosterone, dehydroepiandrosterone sulfate, 4-androstenedione, cortisol, insulin-like growth factor-1, 25-hydroxyvitamin D, and parathormone (PTH) levels. BMD was measured at the lumbar spine, femoral neck, and total hip using dual-energy X-ray absorptiometry. A directed acyclic graph was used to select potential confounding variables. Results: Multivariable analysis showed significant associations between cortisol and femoral neck BMD (β: -0.02, 95% confidence interval [CI]: -0.03 - 0.00), and PTH with femoral neck BMD (β: -0.01, 95% CI: -0.02 - 0.01) and total hip BMD (β: -0.01, 95% CI: -0.01 - 0.00). Hormonal factors more likely associated with a higher risk of low BMD (osteopenia or osteoporosis) were FSH (odds ratio [OR]: 1.02, 95% CI: 1.01-1.03) and PTH (OR: 1.02, 95% CI: 1.01-1.04). Conclusions: Higher cortisol and PTH levels were inversely associated with BMD. Postmenopausal women with higher FSH or PTH levels were likely to have low BMD. © 2023 Journal of Mid-life Health
Maternal expectations of fetal gender and risk of postpartum depression
Background: Female offspring was associated with a high risk of postpartum depression (PPD) during the one-child policy period in China. However, little is known about the association between maternal expectations on fetal gender and the risk of PPD in the context of the new two children policy implemented in 2016.
Methods: We conducted a hospital-based cohort study of women with singleton pregnancies between 2017 and 2018 (n = 991) to address this concern. Logistic regression was run to estimate the association between unexpected fetal gender and the risk of PPD.
Results: A total of 127 women (12.8%) were diagnosed with PPD. Compared with women who achieved fetal gender expectations, the odds ratio (OR) for PPD among those who had an unexpected fetal gender was 2.44 (95% confidence interval (CI): 1.30–4.58) (in the backward method logistic regression model) and 2.25 (95% CI: 1.21–4.18) (in the forward method model), respectively. The disparity of the association was significant among primiparous and pluriparous women (OR, 2.52, 95% CI: 1.32–4.84, P = 0.005 vs. OR, 0.91, 95% CI: 0.09–8.75, P = 0.932). Fetal gender expectations accounted for about 15% of the risk of PPD in the structural equation models.
Conclusions: These results indicated that unexpected fetal gender was associated with an increased risk of PPD among Chinese primiparous women
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