Articles tagged with Pregnancy
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A low-protein diet during pregnancy and lactation may increase the risk of prostate cancer in offspring, according to a study with rats. The study found that females fed a low-protein diet had offspring with preneoplastic alterations capable of interfering with glandular function.
Researchers used heart imaging technology to study hearts of pregnant women with severe preeclampsia, finding higher contraction pressures in right ventricles and abnormal relaxation rates. This led to overwork and poor pumping ability, increasing risk of heart failure, stroke, and heart attack.
Researchers found that injectable trace mineral Multimin90 improved conception rates in some herds, but not others. In one study, selenium and copper status improved compared to saline injections. The value of injectables lies in ensuring every animal receives the supplement at a chosen timing.
Research from Harvard T.H. Chan School of Public Health found pregnant women with low EPA+DHA serum levels had a significantly higher risk of early preterm birth compared to those with higher levels. The study suggests that adequate intake of long chain omega-3 fatty acids during pregnancy may help prevent preterm birth.
A new study finds that biased cultures and policies can lead to dissatisfaction among childbearing surgical residents. The researchers identified three main risk factors: change in training plans due to balancing parenting with professional pursuits, perceived stigma around pregnancy, and lack of maternity leave policies.
Researchers found that thalidomide acts by promoting the degradation of transcription factors, including SALL4, leading to limb and fetal growth complications. The study's findings will help guide development of new anticancer drugs with a similar scaffold.
Research in genetically altered mice reveals that paternal genes can affect the type of care a mother provides to her offspring both before and after birth. This study suggests that a father's genes can impact maternal behavior, potentially affecting the wellbeing of the new baby and their lifelong mental health.
A Northwestern University study suggests that multiple pregnancies can lead to accelerated biological aging in women, as measured by telomere length and epigenetic age. Women with more pregnancies showed signs of faster cellular aging, even when currently pregnant, which challenges the idea that pregnancy itself makes women look younger.
A QUT-led study found that women who received continuity of care, lived outside major cities, and had minimal medical intervention during labor were more likely to have a 'normal' birth. The research aims to empower pregnant women with the information they need to make informed decisions about their maternity care.
A study by the University of York found that over 40% of pregnant women in Pakistan are exposed to secondhand smoke, resulting in approximately 17,000 still births annually. This exposure increases the risk of stillbirth, congenital malformations, and respiratory illnesses.
Researcher Guro Strøm Solli studied Marit Bjørgen's pre- and post-pregnancy training regime, revealing how she trained at moderate intensity despite experiencing weight gain and physiological changes. Bjørgen's high-training volume during pregnancy was also remarkable, with 555 hours of training in 316 sessions.
A new study reveals that practicing yoga during pregnancy activates the parasympathetic nervous system, leading to improved sleep quality and reduced stress levels. The research also found a decrease in alpha-amylase levels, indicating a reduction in stress response.
The risk of having a heart attack during pregnancy has increased by 25% among American women between 2002 and 2014, according to a new study. The study found that the death rate from heart attacks remains high despite advances in treating these conditions.
Exposure to nicotine during pregnancy may impair a baby's cardiorespiratory responses, increasing the risk of sudden infant death syndrome. Nicotine replacement therapies may not protect infants from SIDS, and their use is not considered safe during pregnancy.
Researchers found that a mother's microbiome determines the risk of autism and other neurodevelopmental disorders in her offspring. By manipulating the microbiome through diet or probiotics, it may be possible to prevent autism-like disorders.
A study found that women with a history of pregnancy, particularly those giving birth to five or more children, may be at higher risk for developing Alzheimer's disease. Incomplete pregnancies were also shown to reduce the likelihood of Alzheimer's development.
Research finds that babies born to mothers with depression in pregnancy show altered behavior and biological changes, linked to depression-induced inflammation. These changes may contribute to a higher risk of depression in children born to depressed mothers as adults.
An observational study published in the BMJ Open journal found a strong association between an unhealthy blood fat profile before pregnancy and lower fertility rates. Women with high cholesterol, triglycerides, and low HDL cholesterol were more likely to have only one or no children.
Researchers found higher rates of prenatal depression among young pregnant women compared to their mothers' generation in the 1990s. The study suggests that depression may be more common today among pregnant women due to various factors requiring further investigation.
A new study by Vanderbilt University found that opioid treatment programs in Appalachian states have limited capacity, with only 50% accepting insurance. Pregnant women are particularly excluded, with shorter wait times only when accepted to treatment programs.
Studies of over 4,000 mothers found that male and female babies have different genetic profiles in their placentas, which affect the levels of spermine metabolites. Higher levels of a specific form of spermine were associated with increased risks of pre-eclampsia and poor fetal growth.
Researchers from the University of South Australia have developed a lab-on-a-chip technology that can detect a wide range of fetal genetic abnormalities in early pregnancy. The non-invasive test uses blood samples to isolate fetal cells, providing more information for families and healthcare providers.
A recent study found that suppressing fears during a health scare can lead to higher levels of fear and emotional suppression. Researchers suggest that providing quality information and preparing the public for disease outbreaks can help mitigate this cycle.
A new study by researchers at the University of Maryland School of Medicine found that exposing newborn mice to vaginal microbes from stressed female mice can transfer the effects of stress to the newborns. The study indicates that maternal stress affects brain development in offspring and may be influenced by the vaginal microbiota.
Researchers found that teenagers at age 15 had an excess weight of actual fat in their body of 1.7kg if their mothers did not think their actions would make a difference and held a laissez-faire attitude.
Asymptomatic bacteriuria screening in pregnancy may reduce kidney infections and low birth weight, but evidence is low-quality. Women's values and preferences play a significant role in screening decisions.
A new study found that six out of eight state-level policies aimed at reducing alcohol use during pregnancy have unintended consequences, leading to worse birth outcomes. These policies included mandatory warning signs, child abuse laws, and civil commitment laws, which made women reluctant to seek prenatal care.
A recent meta-analysis compared the efficacy and safety of antihypertensive drugs during pregnancy. Labetalol, hydralazine, and nifedipine were found to have similar efficacy with negligible differences in their safety profile.
A major study found that one in three pregnant women in Norway has a vitamin D deficiency at the end of their pregnancy. Low levels can affect bone health and increase the risk of asthma in children. The study suggests that small measures, such as taking supplements and eating fish, can have positive effects on vitamin D levels.
A study by Karolinska Institutet found a clear correlation between elevated blood glucose levels in mothers and the risk of heart defects in their babies. Pregnant women with type 1 diabetes are at a higher risk, especially those with high blood glucose levels during early pregnancy.
A study published in Microbiome found that maternal diet during pregnancy can influence the infant gut microbiome, with varying effects depending on delivery mode. Vaginal delivery was associated with a higher abundance of Bifidobacterium and Enterobactericeae, while caesarean section was linked to increased Streptococcus and Clostridium.
A large randomized placebo-controlled study found no evidence that rhG-CSF improves outcomes in women with a history of unexplained recurrent pregnancy losses. The study involved 150 women and showed similar clinical pregnancy rates between the treatment and placebo groups.
A study on 563 women who froze their eggs between 2009 and 2017 found that only 12.8% returned to the clinic for reproduction treatment, with an overall success rate of 32.6%. The majority of returning social freezers had found a suitable partner to pursue motherhood.
A new study published in Annals of Internal Medicine found that women with high blood pressure during pregnancy are more likely to develop cardiovascular disease risk factors, including high blood pressure, diabetes, and high cholesterol. The risk factors emerged shortly after pregnancy and persisted for decades.
A collaborative study between six National Primate Research Centers found that 26% of female nonhuman primates infected with Zika virus experienced miscarriage or stillbirth despite few clinical signs of infection. The study suggests that Zika-associated pregnancy loss in humans may be more frequent than currently thought.
A new study found that Zika virus-infected monkeys experienced a 26% fetal death rate, which could indicate more severe outcomes in human pregnancies. The research used data from six National Primate Research Centers and tracked fetal development in infected macaques.
Women with a history of preeclampsia or gestational hypertension in pregnancy developed chronic hypertension at a 2- to 3-fold higher rate than those with normal blood pressure. They also had significantly higher rates of type 2 diabetes and high cholesterol, highlighting the need for lifelong cardiovascular screening.
Research suggests that antidepressant Prozac can alter brain circuit development in mice, leading to social and repetitive behaviors reminiscent of autism. Reversibility of these changes is uncertain, with some alterations permanently changed by fluoxetine exposure.
A recent study published in Nature Medicine found that Zika virus infection increased the risk of miscarriage or stillbirth by 26% in pregnant monkeys. Researchers also discovered damage to the placenta and cell death, which can lead to poor pregnancy outcomes. The true rate of human miscarriage may be higher than previously reported.
Research suggests that Zika virus can cause more miscarriages and stillbirths in pregnant women without showing symptoms. A recent study found 26% of infected monkeys experienced fetal loss despite few signs of infection.
A collaborative study published in Nature Medicine found that 26 percent of nonhuman primates infected with Zika during early stages of pregnancy experienced miscarriage or stillbirth. This is the first time such a finding has been demonstrated, highlighting the importance of understanding how the Zika virus damages the placenta.
Researchers found that even extremely low doses of an endocrine disruptor caused epigenetic changes in a pregnant sow's DNA and its offspring. The study suggests that humans may also be affected by such chemicals, leading to a re-assessment of acceptable daily intake values.
A study found that women living in socioeconomically deprived neighborhoods for longer periods had an increased risk of non-optimal weight gain during pregnancy. Non-optimal weight gain is linked to low birth weights and preterm birth.
A study found that women with a bachelor's degree and men who knew someone at high risk for the virus were more likely to have knowledge or concerns about Zika. Targeted prevention interventions by gender and education level can effectively educate the public.
A study found that genetic variations in the progesterone receptor gene are linked to prematurity risk, with different versions affecting various populations. The research suggests that genes play a role in determining risk, but also highlights the importance of environmental factors.
Researchers found no evidence that vitamin D levels are associated with a reduced risk of gestational hypertension or pre-eclampsia. However, low vitamin D levels during pregnancy can increase the risk of these conditions by suppressing blood pressure-regulating hormones. Further studies are needed to confirm the findings.
A new review suggests that vitamin D may play an integral part in the induction and regulation of critical immune tolerance in early pregnancy. Vitamin D deficiency has been linked to increased risk of recurrent pregnancy loss.
Researchers used whole exome sequencing and whole genome sequencing to detect genetic causes of neonatal death in unexplained cases. The study found a genetic cause in 23% of prospective cohort samples and strong candidates in 18% of retrospective cohort samples.
A UNC study found that administering the Tdap vaccine during pregnancy significantly reduces the occurrence of infant pertussis, with a 75% decrease in hospitalizations and a 46% decrease in all cases. The study suggests optimal timing of immunization between 27-36 weeks of pregnancy.
A large study of over 10,000 pregnant women found no increased risk of stillbirth associated with fluconazole use. The results contradict earlier animal data suggesting a potential link between the drug and fetal death.
A study by the University of Cambridge suggests that mothers' thoughts and feelings about their baby during pregnancy are associated with later interactions. Researchers analyzed data from 1,862 mothers and found a modest link between positive attitudes and sensitivity in parent-child interaction.
Research supports thyroid screenings during early to mid-pregnancy due to increased risk of gestational diabetes and adverse health outcomes. Higher thyroid hormone levels in the first half of pregnancy are tied to development of gestational diabetes, affecting up to 2-10% of pregnancies.
A physiologically based pharmacokinetic model suggests BUP exposure decreases during pregnancy, requiring dose increases to maintain efficacy. After delivery, a reduction in buprenorphine dose is necessary.
A study of 50,734 Japanese children aged 3 found that prenatal and postnatal exposure to smoking was associated with an increased risk of hearing impairment. Children exposed to tobacco smoke during pregnancy or at 4 months had a higher relative risk of hearing problems compared to those not exposed.
A pilot study found that virtual reality sessions before sedation for IVF treatment reduce women's anxiety. The study also showed a slight improvement in biological pregnancy rates, but not clinical pregnancy rates at 12 weeks, with results comparable to those without VR sessions.
Women with insufficient vitamin D levels before pregnancy were more likely to experience miscarriage compared to those with sufficient levels. Vitamin D was found to play a protective role in maintaining pregnancy.
A longitudinal study by the University of Sussex found that new mothers' voices temporarily drop after childbirth, becoming lower-pitched and more monotonous. The researchers analyzed women's voices over a 10-year period and found that this 'vocal masculinising' is not caused by aging.
A new study from the University of Copenhagen found that foetuses with balanced chromosomal aberrations have a higher risk of developing brain disorders such as autism and mental retardation than previously thought. The risk is 20% for these foetuses according to the study.
Researchers at Queensland University of Technology suggest that morality should be removed from the equation when it comes to abortion laws, recognizing pregnancy as a risk for any woman. They argue that women should have the legal right to reject this risk and that criminal sanctions against abortion are unjustified.
A study of over 7,000 low-income urban mothers found that fewer than 5% started folic acid supplementation before pregnancy. Despite the high risk of neural tube defects, many women did not take prenatal vitamins preconception or during pregnancy. The research team also found that black and Hispanic mothers had lower plasma folate conc...