暂无摘要。

UNASSIGNED: Women with a history of adverse pregnancy outcomes have a higher risk of coronary heart disease. Emerging evidence suggests that women with a history of preeclampsia have a different pattern of overall coronary atherosclerosis and that they at the time of myocardial infarction (MI) more frequently present with ST-segment elevation MI (STEMI) compared to women with no such history.
UNASSIGNED: The purpose of this study was to determine whether among women with MI, those with a history of adverse pregnancy outcomes are more likely to present with STEMI or other clinical characteristics indicating a more severe myocardial injury.
UNASSIGNED: The study sample consisted of 8,320 women aged ≤65 years with first MI in Sweden 2007 to 2022. Regression models were used to estimate the association between adverse pregnancy outcomes (hypertensive disorders of pregnancy [non-preeclamptic hypertension and preeclampsia], small for gestational age [SGA] infant, and preterm delivery) and STEMI, invasive revascularization, and high troponin, while considering known predictors of coronary heart disease.
UNASSIGNED: In total, 3,128 (38%) of women suffered STEMI. The adjusted OR of presenting with STEMI were higher in women with a history of preterm preeclampsia (OR: 1.40; 95% CI: 1.05-1.88), or an SGA infant (OR: 1.30; 95% CI: 1.13-1.50) compared to women with no such history, as well as for in-hospital revascularization. Stratified by infarct type, troponin levels did not differ by adverse pregnancy outcome history.
UNASSIGNED: Among women with a first MI, a history of preterm preeclampsia or SGA infant were associated with STEMI and invasive revascularization.

OBJECTIVE: Contraceptive use and its correlates among young women continue to draw research attention due to its implication for fertility reduction, improved maternal and child health, and sexual and reproductive rights. This study explores the association between pregnancy history and contraceptive use among currently married young women (aged 15-24 years at childbirth) in India.
METHODS: Data from the National Family Health Survey (2019-2021) was analyzed through STATA with a significance level of 5%. The births in the last 5 years preceding the survey to the women aged 15-24 years at childbirth (n = 127 954) were considered for analysis. Multinomial logistic regression was used to check the unadjusted and adjusted effects of the pregnancy history on contraceptive use.
RESULTS: Young women with a history of mistimed pregnancy had significantly lower odds of using modern limiting methods of contraception (odds ratio [OR] = 0.90, confidence interval [CI] = 0.82-0.98), and those with a prior unwanted pregnancy were more likely to use modern limiting methods of contraception (OR = 1.75, CI = 1.57-1.95).
CONCLUSIONS: Pregnancy history influences young married women\'s current contraceptive use in India. Family planning programs may use the contacts with antenatal, delivery, and post-delivery care system as an opportunity to identify women with an unwanted pregnancy, especially those educationally and economically weaker, for targeted information and service delivery. Better counseling of potential young contraceptive acceptors will ensure informed decision-making and increased use of modern spacing methods.

The microbial composition of the human vagina differs from that of all other mammals, likely as a consequence of the unique composition of vaginal constituents that promote the selective maintenance and proliferation of distinct bacterial species. Similarly, variations between individual healthy women in genetic, environmental, and medical variables also modify the vaginal lumen composition. The direction and magnitude of immune reactions to microorganisms present in the vagina, responses to stress and non-infectious stimuli, coupled with medical and pregnancy history and environmental exposures, can greatly differ between women. Adaptations to both internal and external pressures will determine the ability of select resident vaginal bacteria to numerically dominate and, therefore, the definition of a \"normal\" vaginal microbiota will substantially differ between individual healthy women.

The vagina contains at least a billion microbial cells, dominated by lactobacilli. Here we perform metagenomic shotgun sequencing on cervical and fecal samples from a cohort of 516 Chinese women of reproductive age, as well as cervical, fecal, and salivary samples from a second cohort of 632 women. Factors such as pregnancyhistory, delivery history, cesarean section, and breastfeeding were all more important than menstrual cycle in shaping the microbiome, and such information would be necessary before trying to interpret differences between vagino-cervical microbiome data. Greater proportion of Bifidobacterium breve was seen with older age at sexual debut. The relative abundance of lactobacilli especially Lactobacillus crispatus was negatively associated with pregnancy history. Potential markers for lack of menstrual regularity, heavy flow, dysmenorrhea, and contraceptives were also identified. Lactobacilli were rare during breastfeeding or post-menopause. Other features such as mood fluctuations and facial speckles could potentially be predicted from the vagino-cervical microbiome. Gut and salivary microbiomes, plasma vitamins, metals, amino acids, and hormones showed associations with the vagino-cervical microbiome. Our results offer an unprecedented glimpse into the microbiota of the female reproductive tract and call for international collaborations to better understand its long-term health impact other than in the settings of infection or pre-term birth.

Salt intake may alter blood pressure (BP) regulation, but no study has investigated the impact of salt reduction versus salt loading on morning blood pressure surge (MBPS) and sympathetic neural control in premenopausal women with a history of normal pregnancy. Nine healthy women (42 ± 3 yr; mean ± SD) were given a low-salt diet (LS; 50 mEq sodium/day) and high-salt diet (HS; 250 mEq sodium/day) for 1 wk each (~2 mo apart with the order randomized), while water intake was ad libitum. Ambulatory BP at 24 h was measured, and the percent change in blood volume (BV) was calculated following LS and HS. MBPS was defined as the morning systolic BP (averaged for 2 h after wake-up) minus the lowest nocturnal systolic BP. Beat-by-beat BP, heart rate, and muscle sympathetic nerve activity (MSNA) were measured during supine rest. Signal averaging was used to characterize changes in beat-by-beat mean arterial pressure and total vascular conductance following spontaneous MSNA bursts to assess sympathetic vascular transduction. Ambulatory BP and MBPS (32 ± 7 vs. 26 ± 12 mmHg, P = 0.208) did not differ between LS and HS. From LS to HS, BV increased by 4.3 ± 3.7% (P = 0.008). MSNA (30 ± 20 vs. 18 ± 13 bursts/100 heartbeats, P = 0.005) was higher, whereas sympathetic vascular transduction was lower in LS than HS (both, P < 0.01). Changes in MSNA from LS to HS were correlated to percent changes in BV (r = -0.673; P = 0.047). Thus, salt intake affects sympathetic neural control but not MBPS in premenopausal women with a history of normal pregnancy. The underlying mechanisms remain unknown; however, alterations in sympathetic vascular transduction may, in part, contribute.NEW & NOTEWORTHY This is the first study to demonstrate that MBPS and ambulatory BP were not affected by salt intake despite a significant change in sympathetic outflow in healthy premenopausal women with a history of normal pregnancy. This may be due to compensatory adaptations in MSNA and sympathetic vascular transduction during salt reduction versus salt loading.

BACKGROUND: Miscarriage is the most common adverse outcome in early pregnancy; however, high proportion of miscarriages are classified as unexplained. In addition, pregnant women attending early pregnancy assessment units might be more vulnerable.
OBJECTIVE: The purpose of this study was to explore the risk factors that might be associated with miscarriage among women attending an early pregnancy assessment unit (EPAU).
METHODS: A prospective cohort study was undertaken. The study was conducted on women attending an EPAU at a large, tertiary hospital. A detailed lifestyle questionnaire was completed. In addition, data from validated psychometric scales were collected. Participants were followed up to determine pregnancy outcome. The relative risk was calculated to estimate the probability of having a miscarriage for all independent variables.
RESULTS: A total sample of 293 women were included in this study. Well-established risk factors for miscarriage were found in this group including advanced maternal age and high-risk pregnancy (i.e. threatened miscarriage and recurrent miscarriage). In addition, lack of emotional wellbeing did contribute to an increased risk of miscarriage. Conversely, presenting with nausea or low-medium energy levels early in pregnancy were associated with a decreased risk of miscarriage. Finally, our results did not find any association between stressful life events, general health and lifestyle factors in this group.
CONCLUSIONS: Our findings indicated that maternal, psychological and obstetric factors may have an influence on miscarriage among women attending an EPAU. The insight of a relationship between emotional wellbeing and miscarriage opens a window for prevention in this area.

OBJECTIVE: Maternal immune responses are altered during pregnancy and differ between nulliparous and multiparous women. The influence of a prior gestation on autophagy in peripheral blood mononuclear cells (PBMCs) from pregnant women has not been determined and is the subject of this investigation.
METHODS: Peripheral blood mononuclear cells were isolated from 212 pregnant women and immediately lysed in the presence of protease inhibitors, and the extent of autophagy was determined by quantitation of the concentration of p62 (sequestosome-1) in the lysates by enzyme-linked immunosorbent assay (ELISA). In PBMCs, the p62 level is inversely related to the extent of autophagy. The level of the stress-inducible 70-kDa heat shock protein (hsp70), an inhibitor of autophagy, was also measured in the lysates by ELISA. Data were analyzed by the Spearman rank correlation, Mann-Whitney U test, or Kruskal-Wallis test, as appropriate.
RESULTS: The p62 concentration in PBMCs increased (autophagy decreased) with the number of previous live ( P = .0322), preterm ( P = .0143), or term ( P = .0418) deliveries. The p62 level was lower (autophagy higher) in women with a prior spontaneous pregnancy loss but no deliveries as compared to women with their first conception ( P = .0087). The intracellular hsp70 concentration correlated with the p62 level ( P < .0001).
CONCLUSIONS: Multiparity is associated with a reduced level of autophagy in PBMCs. Dysregulated autophagy might be one mechanism leading to spontaneous abortion in nulliparous women.

OBJECTIVE: To examine the effect of pregnancy history on the risk of stillbirth.
METHODS: In a population-based cross-sectional study, data were reviewed from all women aged at least 20 years with singleton pregnancies in Finland between 2000 and 2010. The primary outcome-stillbirth-was defined as fetal death after 22 gestational weeks or death of a fetus weighing at least 500 g.
RESULTS: Among 604 047 singleton pregnancies, the prevalence of stillbirth was 3.17 per 1000 deliveries. Prevalence was lowest for multiparous women without previous pregnancy loss after adjusting for major pregnancy complications associated with stillbirth (placenta previa, placental abruption, and pre-eclampsia) and other confounders. Relative to these women, stillbirth prevalence was higher among multiparous women with previous spontaneous abortion and/or stillbirth (adjusted odds ratio [aOR] 1.20, 95% confidence interval [CI] 1.05-1.36), nulliparous women with no previous pregnancy loss (aOR 1.23, 95% CI 1.10-1.38), and nulliparous women with prior spontaneous abortion (aOR 1.43, 95% CI 1.18-1.74).
CONCLUSIONS: Previous pregnancy loss was found to be an independent risk factor for stillbirth, irrespective of the number of prior deliveries.

OBJECTIVE: To examine the relationship between pregnancy history and the use of contraception among women of reproductive age (15-49 years) in East Africa.
METHODS: Demographic and Health Surveys data from Burundi (2010), Kenya (2008-2009), Rwanda (2010), Tanzania (2010) and Uganda (2011) were used in the analysis. Logistic regression was used to determine the effects of women\'s pregnancy history on their use of contraception.
METHODS: Burundi, Kenya, Rwanda, Tanzania and Uganda.
METHODS: 3226, 2377, 4396, 3250 and 2596 women of reproductive age (15-49 years) from Burundi, Kenya, Rwanda, Tanzania and Uganda, respectively, were included in the analysis.
RESULTS: Women who had experienced a mistimed pregnancy were more likely to use a modern contraceptive method during their most recent sexual encounter in Kenya, Rwanda, Burundi and Uganda. Other significant correlates of women\'s contraceptive use were: desire for more children, parity, household wealth, maternal education and access information through radio. In-country regional differences on use of modern contraceptive methods were noted across five East African countries.
CONCLUSIONS: Women\'s birth histories were significantly associated with their decision to adopt a modern contraceptive method. This highlights the importance of considering women\'s birth histories, especially women with mistimed births, in the promotion of contraceptive use in East Africa. Variations as a result of place of residency, educational attainment, access to family planning information and products, and wealth ought to be addressed in efforts to increase use of modern contraceptive methods in the East African region.