激素周期变化。经前综合症的体征和症状随着激素的变化而发生变化，而在妊娠期和更年期的时候会消失。
Cyclic changes in hormones. Signs and symptoms of premenstrual syndrome change with hormonal fluctuations and disappear with pregnancy and menopause.
在第三份研究中，研究者同样采用了来自CHARGE研究法，研究了患有2 -型糖尿病和妊娠期糖尿病、慢性高血压和怀孕前过度肥胖的母亲。
In a third study, which also drew from data from the CHARGE study, researchers looked at mothers who had diabetes (Type 2 and gestational), chronic hypertension and pre-pregnancy obesity.
经前综合症的体征和症状随着激素的变化而发生变化，而在妊娠期和更年期的时候会消失。
Signs and symptoms of premenstrual syndrome change with hormonal fluctuations and disappear with pregnancy and menopause.
正常体重的妊娠期妇女在妊娠前三个月饮用含糖饮料比不饮用者生育超重婴儿的风险更高。
Normal-weight expectant moms who drank sugar-sweetened beverages in the first trimester were at a higher risk of having large babies than the women who didn't consume much of them.
早期的研究证明妊娠前体重增加和妊娠初期超重或肥胖是发生妊娠期糖尿病的危险因素。
Previous research has shown that weight gain before pregnancy and being overweight or obese at the start of pregnancy are risk factors for gestational diabetes.
这种ASD风险相关性也不受母亲吸烟状况，怀孕前体重指数和妊娠期体重影响。
The associated ASD risk was also unaffected by the smoking status, pre-pregnancy body mass index and gestational weight of the mothers.
目的：探讨孕前肥胖、孕期体重增长过度孕妇妊娠期并发症的发生以及其分娩结局的关系。
Objective: To determine the relation of progestational body mass index (BMI) and excess weight gain during pregnancy with pregnant complication and delivery outcome.
据一项新研究显示，与患妊娠期高血压的妇女相比，在孕前即有高血压病史的妇女发生抑郁症的风险更高。
Women with a history of high blood pressure before getting pregnant have a higher risk of depression than women who develop pregnancy-related hypertension, according to a new study.
母亲妊娠期前或妊娠期增加叶酸摄入，将降低神经管缺陷发生的概率。
Mothers who supplement their diets with folate prior to and during pregnancy can often reduce this risk.
目的探讨给妊娠期高血压疾病患者静脉输液前与其充分护患交流对患者疾病的影响。
Objective to investigate the effect of nurse-patient communication before venous transfusion to the patients with preeclampsia.
然而，由母亲妊娠期前或妊娠期的叶酸饮食供应能减少此种先天缺陷。
However, dietary folic acid supplementation by mothers-to-be before and during pregnancy can reduce the incidence of such birth defects.
妊娠期糖尿病是孕妇在怀孕期间出现的糖尿病，是怀孕期前没有异常，怀孕后才出现的糖尿病。
Why can appear gestational diabetes gestational diabetes during pregnancy appear is of diabetes, is pregnant period before no abnormalities, after pregnancy appear only of diabetes.
她们提供怀孕前和怀孕初期饮食习惯的记录，研究人员根据妊娠期大概的卡路里摄入量的数据作出分析。
They provided records of their eating habits before and during the early stages of pregnancy, and researchers analyzed the data based on estimated calorie intake at the time of conception.
她们提供怀孕前和怀孕初期饮食习惯的记录，研究人员根据妊娠期大概的卡路里摄入量的数据作出分析。
They provided records of their eating habits before and during the early stages of pregnancy, and researchers analyzed the data based on estimated calorie intake at the time of conception.
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