Articles tagged with Pregnancy
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Researchers at the University of Wisconsin-Madison have made a breakthrough in gene transfer technology by inserting a jellyfish gene into rhesus monkey embryos, resulting in transgenic placentas that produce the desired protein. The study promises new insights into pathologies of pregnancy and has implications for human gene therapy.
A large-scale study found no association between folic acid supplement use and increased risk of miscarriage. The researchers assessed 23,806 women who had taken part in a folic-acid campaign before becoming pregnant for the first time.
A recent study published in Obstetrics and Gynecology found that a lower dose of mifepristone is as effective as higher doses when used with misoprostol for early pregnancy termination. The study showed that 72 out of 80 women experienced complete abortions after using the lower dose regimen.
Researchers have discovered colchicine, a toxic substance, in the blood of human placentas, raising concerns about its potential impact on pregnancy. Expectant mothers should avoid taking Gingko biloba supplements due to the risk of complications.
A study found that moderate alcohol exposure during early pregnancy can cause noticeable reductions in infant attention and motor maturity, similar to continuous or late exposure. This contradicts previous research suggesting growth and behavioral problems only occur with later exposure.
A study of 170 pregnant women in treatment for drug dependency found that those with co-occurring alcohol problems have more severe psychological issues, including depression and anxiety. The findings highlight the need for universal screening and tailored treatment approaches to address these women's unique needs.
A study by Israeli fertility experts found that a quarter of women and two husbands had abnormal chromosomes, leading to repeated embryo implantation failure. The researchers are calling for an international registry to be established to record chromosomal aberrations in infertility patients.
Researchers have successfully used frozen ovarian tissue to induce live births in large mammals, including lambs. The study offers a promising solution for women who become infertile due to cancer treatments, providing an alternative to traditional fertility preservation methods.
A study published in American Journal of Preventive Medicine found that long-term contraceptives, such as Norplant, reduced second pregnancy rates among teens. Among the participants who chose these methods, only 11% became pregnant within a year, compared to 25% of those using oral contraceptives and 38% of those not using birth control.
A Cornell University study found that women who gained more than the recommended amount during pregnancy are four times more likely to be obese one year after giving birth. This excessive weight gain contributes significantly to the rising levels of obesity in the US.
Researchers found that most women (70%) are in their fertile window before day 10 or after day 17, leaving few universal 'safe' days for natural birth control. The study also revealed that late ovulation can occur even in women with regular cycles, increasing the chances of pregnancy during the fifth week.
A study found no significant difference in reducing maternal weight gain and gestational diabetes among Cree women, suggesting cultural factors and intervention intensity as contributing factors. Culturally appropriate modifications to interventions are proposed to reduce the risk of diabetes in pregnancy among this population.
Involuting mammary glands undergo two stages of apoptosis, with the first wave triggered by Fas binding to its ligand FasL. Mutant animals lacking Fas or FasL experience delayed epithelial cell death.
A new study by UNC Chapel Hill researchers found that pregnant women with low calcium intake have higher levels of lead in their bloodstream due to rapid bone turnover. Calcium consumption can minimize this effect, but the study also suggests that even low-level exposure may pose health risks.
New research suggests angiotensin-(1-7) levels may predict and prevent preeclampsia. The hormone helps regulate high blood pressure during normal pregnancy.
A new study reveals nearly 12 million American women aged 15-44 are uninsured, with ethnic minorities facing greater gaps in coverage. State disparities also exist, with some states having up to 30% of women without insurance.
The Smoke-Free Families National Dissemination Office aims to increase cessation rates by up to 70% through counseling and strong social support. The office will disseminate current best practices and conduct research to integrate effective quitting methods into clinical settings.
A new study published in Fertility and Sterility suggests that most infertile men cope with their situation well, with no significant differences among three groups of men. The researchers found that fertile men reported higher stress levels compared to those with low or no sperm count or unexplained infertility.
African-American women are more likely to relapse into postpartum smoking due to various factors such as ethnicity, maternal weight gain, and stress. Women with higher levels of stressful events are nearly twice as likely to relapse compared to those with no stressful events.
Research in Archives of Disease in Childhood found that around one in five young children were wheezy between 18-30 months, with the risk higher if the mother smoked during pregnancy. Smoking during pregnancy and environmental tobacco smoke are linked to an increased risk of wheezing and asthma in early childhood.
A new study suggests that social support during pregnancy can positively impact fetal growth and birth weight. Women with multiple sources of support during pregnancy had higher birth weight infants. The research also found that social support may inspire healthier behaviors and improve treatment outcomes for pregnant women.
Researchers found that nurse home visits reduced child abuse and neglect by up to 80% among low-income, unmarried women and their first-born children. The program had little effect on homes with moderate to severe domestic violence.
A mathematical model developed by Population Council scientists John Bongaarts and Charles Westoff shows that increased contraceptive use and effectiveness can significantly reduce abortion rates. The study estimates that a woman who uses no contraception would need about 12 abortions to restrict her fertility to two births.
A study examines the drinking habits of American Indians and African Americans during pregnancy, revealing misconceptions and misunderstandings about Fetal Alcohol Syndrome risk. The research aims to improve health warnings and social norms to reduce alcohol consumption during pregnancy.
A new prenatal screening test has been developed to detect Down syndrome cases in the first trimester, identifying over 90% of cases. The test combines a blood test and an ultrasound exam, detecting more cases than traditional triple tests and providing earlier reassurance to pregnant women.
A study analyzing perinatal records found that 33.1% of pregnant women in Nova Scotia smoked before their pregnancy, with 69.9% continuing to smoke throughout. An accompanying commentary provides guidance for physicians to increase smoking cessation rates among pregnant women.
A new screening test combining blood and ultrasound exams can identify over 90% of Down syndrome cases in the first trimester of pregnancy. The test, Ultrascreen, has the advantage of detecting more cases earlier than traditional tests.
A UK study found that men's age significantly impacts conception rates, with the probability of conceiving within 12 months doubling from around 8% at under 25 to 15% at over 35. The study also revealed a decline in male fecundity associated with increasing paternal age.
Researchers discovered a mutation in the mineralocorticoid receptor gene linked to severe hypertension in pregnant women. The findings suggest that progesterone may exacerbate hypertension in pregnancy and could lead to clinical trials of salt restriction.
Researchers discovered a mutation in the mineralocorticoid receptor gene, leading to dangerously high blood pressure in pregnant women. The mutation renders the receptor more sensitive to progesterone, causing excessive salt retention and skyrocketing blood pressure.
A Dutch gynaecologist warns couples about the risks of Assisted Reproductive Technology (ART) and advises them to consider natural conception first. Nearly half of women who have not conceived after a year will conceive naturally, making informed decisions crucial before treatment.
Researchers are using lasers to aid embryonic development by precision-drilling the 'shell' of human eggs. This technique has shown improved IVF success rates and increased implantation rates, allowing embryos to embed themselves in the womb more effectively.
A recent survey by the March of Dimes found that only 32% of women between 18-45 take a daily multivitamin containing folic acid, despite being aware of its benefits. This is concerning given the importance of folic acid in preventing serious birth defects of the brain and spine.
A study by Cornell University researchers suggests that prenatal cocaine exposure may cause lasting attention dysfunction in children, impacting their ability to focus despite distractions. The findings support the potential long-term effects of cocaine use during pregnancy on children's cognitive development.
A study published in The Quarterly Review of Biology suggests that morning sickness serves a beneficial function, shielding the mother and fetus from harmful foods and chemicals. Women who experience morning sickness are less likely to miscarry than those who do not, and their aversion to certain foods peaks during the first trimester.
A study of 1424 pregnant women in Newfoundland and Labrador found that less than 4% had deficient serum folate levels, but 27% had low red blood cell folate. The findings highlight a significant public health issue that should be addressed through daily folic acid supplements.
A study by a University of Michigan School of Nursing professor found that moderate exercise can lower diastolic blood pressure in pregnant women, reducing the risk of developing gestational hypertension. The randomized trial involved 16 high-risk women who engaged in treadmill or bicycle exercise three days a week for 10 weeks.
A study of 99 mothers found that those who smoked during pregnancy had toddlers with higher levels of impulsivity, risk-taking, and rebelliousness. The researchers speculate that reducing maternal smoking could lead to a decrease in childhood negativity.
A new study by Michigan Medicine researchers found that physically demanding work significantly increases the risk of adverse pregnancy outcomes, including preterm birth and low birth weight. The authors recommend improving national maternity leave policies to provide workers with pay, health benefits, and job security.
A new study by Michigan Medicine researchers found that women who smoke during pregnancy are 50-70% more likely to give birth to a baby with cleft lip or palate. The risk increases with the number of cigarettes smoked daily, even after controlling for factors like mother's race, age, and education level.
A recent NICHD study found that antibiotic treatment for bacterial vaginosis was ineffective in preventing premature birth. The study, which treated over 1,900 pregnant women, showed no significant reduction in preterm births among those receiving metronidazole treatment.
Researchers develop a mouse model for intrauterine growth retardation and find that administering indomethacin during pregnancy can rescue underweight fetuses. The study provides promising insights into the underlying biochemistry of IUGR and identifies a potential therapeutic approach.
Researchers found that expectant fathers' hormones fluctuate during pregnancy, mimicking their partners' changes. Testosterone levels dropped significantly after birth, and lower levels were associated with increased paternal behavior.
A study found that glucose-6-phosphate dehydrogenase (G6PD) is critical to embryonic development, increasing the risk of prenatal and postnatal death. The deficiency also increases the incidence of birth defects in fetuses exposed to oxidative stress.
Researchers found that pregnant women who received a hormone-like gel called prostaglandin E2 gave birth faster than those who received a placebo, with an average labor time of 5.6 hours versus 8.6 hours. The study suggests that this gel may help prevent the need for induced labor and reduce Caesarean sections in women at risk
A new report by Robert H. DuRant shows a significant link between sexual experience and violent behavior in North Carolina high school males. Males who have been involved in pregnancy are more likely to engage in behaviors increasing their risk of injury or death, such as fighting, carrying a gun to school, and using illegal substances.
Elevated cholesterol levels are associated with an increased risk of preeclampsia, a pregnancy complication that can lead to seizures, liver or kidney failure, and premature delivery. Women with high cholesterol before pregnancy are more likely to develop the condition, which affects thousands of women each year.
Researchers found moose pregnancy rates fell from 90% in 1966 to 75% today, indicating limited food availability. The abundance of willows limits the number of moose, not wolves and grizzly bears, according to the study.
A recent study found that only 11% of young adults use condoms solely for AIDS prevention, while 41% use them exclusively for pregnancy prevention. The majority (48%) use condoms for both purposes, indicating a pragmatic approach to risk reduction.
A new study reveals that prenatal exposure to higher levels of testosterone in pregnant smokers may predispose their daughters to develop a smoking habit as they age. Researchers analyzed data from over 240 pairs of mothers and daughters, finding no correlation between prenatal nicotine levels and later smoking behavior.
A study found that untreated hypothyroidism in pregnant women is associated with lower IQ scores in their children. Children of mothers treated for the condition showed similar intelligence levels to those born to healthy mothers. Early detection and treatment may mitigate the negative effects.
Research reveals psychological uncertainty about pregnancy is a major barrier, rather than immigrant status, for Puerto Rican women seeking adequate prenatal care. Despite being U.S. citizens, some women report inadequate care due to unwanted pregnancies or lack of awareness.
Researchers found that women with high HIV RNA levels in their blood transmitted the virus to their infants more often than those with low levels, highlighting the importance of treatment strategies aimed at reducing viral load. The studies also suggest that undetectable viral RNA levels can significantly reduce transmission risk.
A large-scale study by the University of Chicago found that immunotherapy, a treatment aimed at preventing recurrent miscarriage, is not effective. Women who received this treatment had more and later miscarriages compared to those receiving a placebo.
Researchers found that HIV-infected pregnant women receiving care at specialized centers or state-funded sites were more likely to receive antiretroviral therapy, reducing transmission by up to two-thirds. The study highlights the importance of access to quality medical care in preventing mother-to-newborn transmission of AIDS.
Fetuses that implant late in the uterus have a higher risk of dying in the first weeks of pregnancy. The study found that if a fertilized egg implanted on or after day 12, it had an increased chance of loss, with risks reaching as high as 82%. Daily urine testing revealed that these lost fetuses tended to implant later than those that ...
Researchers found that fertilized eggs attach themselves to the womb six to 12 days after ovulation, with implantation occurring on day eight being the most successful. The later the attachment takes place, the more likely a pregnancy will end on its own. Day eight appears to be the optimal time for successful implantation.
Researchers recommend genetic screening for pregnant women with liver illness and their families to prevent life-threatening conditions. The E474Q mutation is identified in 19 children out of 24 families studied, leading to AFLP or other liver disorders in mothers.
A Penn State-led study found lower concentrations of a stress hormone in pregnant teens are linked to greater numbers of depression and conduct disorder symptoms. The hormone, corticotropin releasing hormone (CRH), is associated with emotions and behavior during pregnancy.
A research study found that pregnant women who receive supportive counseling are more likely to stay smoke-free, but relapse rates remain high. Ongoing counseling is necessary to prevent smoking relapse in postpartum women.