Articles tagged with Estrogen
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A new study found that exercise minimizes changes in muscle mass, bone density, and belly fat when estrogen levels drop, but does not protect against metabolic changes. Researchers discovered that while exercise reduces the risk of osteoporosis, it does not affect resting metabolic rate or energy balance in women with menopause.
A new study suggests that low estrogen levels during menopause may contribute to increased anxiety and minor memory problems. The research, conducted on female rats without ovaries, found a link between estrogen deficiency and anxiety-like behavior.
A study published in Frontiers in Molecular Biosciences suggests that sex hormones, particularly estrogen, play a key role in migraine occurrence in women. The research found that estrogen levels sensitize cells around the trigeminal nerve to stimuli, making it easier to trigger a migraine attack.
Experimental studies reveal a strong interplay between liganded and non-liganded transcriptional activations of ERs. Natural estrogens can restore DNA surveillance in tumor cells via harmonized transactivation of AF1 and AF2 domains.
Researchers found that estrogen receptor modulators increase the effectiveness of HIV latency reversal therapies. Exposure to estrogen limits the emergence of HIV from latency, suggesting a potential factor in future eradication therapies.
A new study found increased levels of estrogen in men with migraine, as well as symptoms of lower testosterone. Testosterone levels did increase before a migraine in some participants, and symptoms of relative testosterone deficiency were more frequent and severe in men with migraine.
Researchers found that estrogen therapy changes microbial composition and activity in the gut, affecting how estrogens are metabolized. Probiotics may be used to manipulate the gut biome to improve estrogen-replacement therapy's benefits without increasing cancer risks.
Research reveals estrogen receptor alpha influences T cell activation, proliferation and survival in autoimmune diseases, including MS, RA, and SLE. Regulatory T cells play a crucial role in preventing autoimmune diseases, and the study identifies potential targets for novel treatments.
Researchers from INRS published a study demonstrating the potential effects of neonicotinoids on human health by disrupting hormonal systems. The study found an increase in aromatase expression and changes in its pattern similar to those observed in certain breast cancers.
Researchers are investigating the impact of antioxidant vitamins C and E, alpha lipoic acid, resveratrol, and Sirt1 on blood vessel health in premenopausal women with type 1 diabetes. Early evidence suggests that treatment may restore protection against cardiovascular disease.
A six-year study of 24 transgender men treated with testosterone therapy found no rise in estrogen levels and a later stabilization within normal ranges. The results support the safety of testosterone therapy for transgender men without additional risks to female reproductive tissues.
A new study published by The Endocrine Society found that estrogen replacement therapy can improve drive for thinness, body dissatisfaction, and uncontrolled eating in female athletes with exercise-induced menstrual irregularities. Female athletes with irregular periods reported more disordered eating behavior than those with regular p...
Researchers found that estrogens from treated wastewater persist in vernal pools for weeks, transforming into more potent compounds and impacting sensitive aquatic habitats. The study suggests inadequate water treatment practices may be contributing to this issue.
Research found that women with estrogen receptor-negative breast cancer had an increased risk of preterm birth and low birth weight compared to those with other types. The study also showed a lower birth rate among breast cancer survivors, with only about 8% having children by 10 years after diagnosis.
Researchers discovered that a hormone therapy combination of conjugated estrogens and bazedoxifene improves metabolism, prevents weight gain, and reduces inflammation in the liver. The treatment also showed no increased risk of reproductive cancer.
Researchers at University of Wisconsin-Madison discover estrogen produced in brain is necessary for ovulation in monkeys, potentially revealing cause of infertility problems and pointing to new methods of birth control. The discovery challenges traditional understanding of hormonal cascade leading to egg release from ovaries.
The USPSTF has updated its recommendation statement on the use of hormone therapy in postmenopausal women, citing uncertain evidence on whether menopause increases the risk of chronic conditions. The organization recommends against combined estrogen and progestin hormone therapy or estrogen alone for primary prevention.
Researchers discovered a novel mechanism of estrogen action on heart physiology, revealing that xenoestrogens can influence cardiac function by regulating thyroid hormone production. This study highlights the potential risks of environmental estrogens on human health.
Chronic preconception exposure to genistein affected pregnancy rates in mice, resulting in prolonged labor, smaller litters, and higher pup mortality. The study found that high doses of genistein may boost fertility rates but also have adverse effects on reproductive outcomes.
Researchers found that neurons in the brain's 'reward center' fired more rapidly in response to alcohol when estrogen levels were high. This increased sensitivity may play a role in the development of addiction in women, particularly during certain stages of their menstrual cycle.
A new study confirms vaginal estrogen is effective in managing sexual and urinary problems of menopause without increasing risk of serious health issues like heart disease and cancer. The WHI data review also clears the use of vaginal estrogen for genitourinary syndrome of menopause.
Researchers found that menopause triggers metabolic changes in the brain, increasing the risk of Alzheimer's disease. The study used PET imaging to measure glucose metabolism in the brains of 43 healthy women aged 40-60, revealing lower levels of glucose metabolism in post-menopausal women.
Clomid's development and impact on assisted reproduction are celebrated in a new paper at Brown University. The drug has helped millions of people conceive, making it one of the globe's essential medicines.
Research by American University neuroscience Professor Colin Saldanha shows that estrogen synthesis in the brains of zebra finches can fight off neuroinflammation caused by infection. This finding reveals clues about the interplay between the body's neuroendocrine and immune systems.
Research reveals that estrogen hormones regulate gene expression through a multi-step process involving sequential recruitment of coactivators. The study, published in Molecular Cell, shows that the addition of specific coactivator CARM1 guides subsequent steps leading to gene activation.
A comprehensive review highlights the importance of lifestyle modifications and emerging approaches to manage menopausal symptoms after breast cancer. Non-pharmacologic therapies and several promising emerging agents show promise for symptom relief with reduced breast cancer risk.
A study from Hiroshima University found that the brain's estrogen levels are directly linked to DHA intake, which can prevent seizures. The research suggests that dietary sources of DHA may contribute to brain health and could lead to the development of new epilepsy treatments.
A new study published in Menopause found that vaginal estrogen therapy does not increase the risk of cardiovascular disease, cancer, or other health issues in post-menopausal women. The research suggests that vaginal estrogen is a safe treatment for genitourinary symptoms associated with menopause.
A new study by Penn State researchers finds that injecting manure into crop fields instead of spreading it on the surface significantly reduces estrogen loads in surface runoff. The method also showed reduced transport rates of total dissolved phosphorus and dissolved organic carbon.
Researchers at UCLA found that estrogen therapy's dose, not delivery method, affects risk and benefit for postmenopausal women. Higher doses of conjugated equine estrogen are associated with greater risk of heart disease and certain cancers, especially in obese women.
Researchers have discovered that adding estrogen to brain regions helps regulate weight and glucose levels in rats with induced menopause. The finding suggests that the medial amygdala is crucial for metabolic health, making it a potential target for treatment.
A new study from Uppsala University found that tea consumption in women leads to epigenetic changes in genes related to cancer and estrogen metabolism. However, coffee consumption was not associated with such changes.
Research reveals that fluctuations in estrogen can trigger atypical functioning in a key brain memory circuit in women with a common version of the gene, NIMH scientists have discovered. This finding may help explain individual differences in menstrual cycle and reproductive-related mental disorders linked to fluctuations in the hormone.
A study has identified hormones as the cause of inguinal hernias in older men, finding that increased estrogen action and decreased testosterone levels lead to muscle tissue weakness and scarring. The researchers propose using aromatase inhibitors as a potential treatment to prevent recurrence or even surgery.
Exposure to BPS multiplies breast cancer cells, exhibiting estrogen-mimicking behavior, and may cause breast cancer to become more aggressive. The study confirms BPS as a potent endocrine disruptor.
A new organ culture system developed by Tufts University researchers enables tests of BPA's direct effects on developing fetal mouse mammary tissue. BPA significantly increased tissue growth at environmentally relevant doses, while higher levels inhibited growth.
New research from Emory University School of Medicine found that estrogen modulates gene activity to protect against post-traumatic stress disorder (PTSD). Women with low estrogen levels during certain stages of their menstrual cycle may be more susceptible to PTSD, while high estrogen levels offer protection.
Researchers found that estrogen intensifies the brain's dopamine reward pathway, leading to increased pleasurable effects of cocaine. The study suggests using birth control pills or similar strategies to adjust the hormonal cycle as a possible addiction intervention.
A complex of genes regulating epigenetic mechanisms is linked to premenstrual dysphoric disorder (PMDD), a condition affecting 2-5% of women of reproductive age. Dysregulated expression of these genes suggests abnormal cellular response to sex hormones, which may hold hope for improved treatment.
Researchers at Scripps Florida Institute developed a novel approach for identifying how chemicals in the environment can produce infertility and promote breast cancer. The new method uses high-resolution imaging techniques to visualize the effects of estrogenic chemicals on cells.
Researchers found that women who had their last pregnancy at 35 or older scored higher on verbal memory and executive function tests. The study suggests that hormonal changes during menopause can have a positive impact on cognitive function if they occur later in life.
A study by University of Illinois researchers found that isoliquiritigenin, a licorice compound, disrupts steroid sex hormone production in the mouse ovary. This can lead to problems with reproduction and potentially impact fertility, estrogen levels for healthy brains and bones, and cardiovascular health.
Researchers found higher levels of estrogen in lung tissue of postmenopausal women with synchronous multiple lung adenocarcinoma (SMLA) compared to those with single tumor lung adenocarcinoma. The study suggests an association between estrogen and SMLA, potentially leading to gene therapy development.
A recent study published in Menopause found a gene variant associated with hot flashes in postmenopausal women. The study examined genetic variations across the human genome and discovered that specific variants on chromosome 4 linked to the tachykinin receptor 3 were more common among women experiencing hot flashes.
A new review found potential health benefits of phytoestrogens, including reduced menopausal symptoms and lowered risks of cardiovascular disease. However, the potential negative health effects, such as infertility and increased cancer risks, must be considered, and individual factors like age and gut bacteria may influence outcomes.
Researchers have made new insights into the underlying mechanisms of cystic fibrosis, a deadly genetic disorder affecting the lungs and other organs. The study reveals how estrogen disrupts ion transport in patients with CF, leading to more severe symptoms and shorter life expectancy for women.
Researchers found that naturally occurring estrogens in milk did not impact blood hormone levels or reproductive organs in mice, even at concentrations 100 times higher than typical milk from pregnant cows. The study suggests that the gastrointestinal system can metabolize estrogens before they reach systemic circulation.
Researchers at UTA are studying how estrogen levels impact females' sensitivity to cocaine's rewarding effects and their risk of addiction. They found that estrogen activates messenger pathways in the dopamine reward system, making drugs more or less rewarding.
A study of 124,379 postmenopausal women found that shorter and longer reproductive spans increase the risk of type 2 diabetes. Women with optimal reproductive durations had lower BMI and waist circumferences compared to those with shorter or longer periods.
A recent study published in Neurology found that hormone therapy has a negligible impact on verbal memory and mental skills in postmenopausal women, with or without early treatment. The research suggests that healthy women at any stage after menopause should not take estrogen to improve their cognitive abilities.
A large clinical trial has found that estrogen therapy does not impact cognitive function in postmenopausal women, contradicting previous theories. The study suggests that healthy women at any stage after menopause should not take hormone supplements to improve memory.
A recent study found that estrogen therapy via skin patch reduced beta-amyloid deposits in the brains of newly postmenopausal women, potentially decreasing Alzheimer's disease risk. Women with a greater genetic risk for Alzheimer's, such as those with the APOE e4 genotype, particularly benefited from this therapy.
New research reveals that fetal BPA exposure alters the uterine epigenome, affecting almost 1,000 genes regulated by estrogen. This changes lead to an increased risk of estrogen-related diseases such as infertility and breast cancer in offspring.
Research suggests a 'two-hit' process links estrogen withdrawal to menstrual migraine. Women with migraine experience a faster rate of estrogen decline than those without, which may make them vulnerable to migraine triggers like stress and sleep deprivation.
A Northwestern University study found that a class of drugs inhibiting estrogen production can quickly and effectively suppress brain seizures. The effect was profound and clear, suggesting a new approach to treating seizures by shutting down the brain's production of estrogen when a seizure first begins.
Researchers discovered a new factor in seizure escalation: estrogen synthesis in the brain. Aromatase inhibitors showed promise in suppressing seizures without negative side effects, promising a novel therapeutic approach.
Researchers have identified cellular pathways in skin pigment cells activated by estrogen and progesterone, leading to either skin darkening or lightening. The discovery could lead to the development of new products changing skin tone without harmful chemicals.
A new study links gut bacteria to post-menopausal bone loss, showing probiotics can prevent this condition by attenuating inflammation. Treatment with probiotics also reduced bone loss in normal mice, highlighting therapeutic potential for probiotics in osteoporosis prevention.
A review paper suggests that estrobolome disparities could help develop microbiome-based biomarkers for mitigating certain cancers. The gut bacterial genes capable of metabolizing estrogens play a crucial role in shaping systemic estrogen levels.
A new study found that estrogen replacement therapy improves verbal memory and cognitive flexibility in young female athletes with amenorrhea. The study showed significant improvements in both immediate recall of words and ability to switch between tasks, even when controlling for age and pre-treatment test scores.