Articles tagged with Hormones
A new model developed by researchers at UCLA uses hormone levels to estimate when the final menstrual period will occur in menopausal women. This could help identify accelerated bone loss and increased cardiovascular risk in the year leading up to the final menstrual period.
Researchers used hormone levels to estimate when a woman will have her final menstrual period, providing a way to gauge menopause-related bone loss. The study found that levels of estradiol and follicle stimulating hormone can predict the timeline for menopause.
A new educational tool has demonstrated significant reduction in stress hormones and depressive symptoms among adolescents transitioning to high school. The DeStress for Success Program showed improved mental health outcomes, especially among students with initial high anger levels.
A recent study found that sedentary children experience stress hormone surges when exposed to everyday stressors, while the most active children had little or no increase in cortisol levels. The study suggests physical activity plays a role in mental health by buffering children from daily stressors.
A study published in the Journal of Translational Medicine found that thyroid hormone treatment reduced loss of heart muscle cells and improved heart function in rats after a heart attack. The researchers believe this could lead to improved patient outcomes and significant healthcare savings.
Researchers discovered that metal ions cobalt, manganese, and magnesium control the production of different terpenoids in insect larvae, one for defense and another for juvenile hormones. This study highlights the importance of metal ions in regulating metabolic pathways and challenges the traditional view of enzyme specificity.
A study found that morning sickness lasting all day is often linked to hormonal and genetic factors, with ethnicity and diet also playing a role. Women who have experienced hyperemesis gravidarum in previous pregnancies are at higher risk of severe nausea during subsequent pregnancies.
Researchers propose a new approach to designing diets by focusing on the impact of food's micronutrients, rather than macronutrients. This approach aims to reduce disease and promote wellness by 'listening' to the body's response to specific nutrients.
A recent study found that women with high anti-Müllerian hormone (AMH) levels are 2.5 times more likely to have a successful IVF cycle than those with low levels. High AMH levels also signal increased chances of pregnancy and live birth, regardless of the number of eggs retrieved.
A new study in humans published by Cell Press reveals that sodium levels actually fluctuate rhythmically over the course of weeks, independent of salt intake. The study, which examined cosmonauts participating in space-flight simulation studies, challenges widely accepted assumptions about sodium balance.
Scientists have identified a new type of nerve cell in the brain that regulates heart rhythm and blood pressure. The discovery may lead to new ways of treating cardiovascular diseases.
Research suggests that bacteria in the gut may control host appetites by influencing signaling pathways. The gut microbiota respond to nutrients and hormones, generating compounds that affect appetite and mood disorders. Further studies are needed to determine if gut bacteria directly influence food choice.
Researchers at King's College London identified the 'Hedgehog pathway' regulating stress hormones and brain cell development. The study revealed that inhibiting this pathway can reverse damaging effects of stress hormones on brain cells, offering new potential mechanisms to target depression.
A peer-reviewed study found that most houses have levels of at least one flame retardant exceeding federal health guidelines, with hormone disruptors, carcinogens, and chemicals of unknown safety profiles detected. The study highlights the need for safer alternatives to phase out hazardous chemicals.
A study conducted by Elizabeth Nedstrand and Lotta Lindh-Åstrand found that applied relaxation therapy reduced hot flushes in postmenopausal women by half. The treatment also showed improvements in quality of life, particularly in memory, concentration, sleep, and anxiety.
A new study by UC Berkeley researchers links plant-based estrogenic compounds to altered hormone levels and possible changes in behavior among male red colobus monkeys. The study suggests that phytoestrogens may have played a significant role in the evolution of primate biology, including human biology.
Researchers at McGill University have identified a new hereditary form of hypothyroidism caused by mutations in the immunoglobulin superfamily, member 1 (IGSF1) gene. This sex-biased condition affects males more frequently than females and has significant implications for thyroid hormone deficiency diagnosis and treatment.
A study from Lund University finds a strong link between neurotensin, a satiation hormone, and the risk of type 2 diabetes, cardiovascular disease, and breast cancer in women. Obesity is not the primary explanation for this connection.
A new study by researchers at the University of California, Berkeley, found that BPA exposure is associated with changes in thyroid hormone levels in pregnant women and newborn boys. The study suggests a potential link between BPA exposure and altered fetal development and cognitive function.
A new study by The Endocrine Society reveals that low levels of vitamin D are associated with increased mortality in African American and Caucasian older adults. Vitamin D insufficiency was found to be common among African Americans, and its impact on remediating low levels may be greater for this population.
Researchers discovered FNDC5/irisin hormone is secreted by muscle cells and reflects muscle mass. Irisin levels increase after acute exercise and are associated with growth factors that promote muscle growth.
A study of noble Korean males found castrated eunuchs lived 14-19 years longer than other men. The incidence of centenarians among Korean eunuchs is 130 times greater than in developed countries, offering clues to life extension.
A recent study published by The Endocrine Society found that mildly elevated TSH levels in the elderly do not increase mortality risk. In fact, having subclinical hypothyroidism may be protective, and higher thyroid hormone levels are associated with a higher risk of death.
A study from the University of Leeds found that seabirds control when their young leave home through hormone levels corticosterone, not parental care. Chicks show a surge in this hormone 60 days before fledging, prompting parents to reduce food provisioning.
A new study shows that ovarian grafts can maintain hormonal function for more than seven years in some women, providing a long-term solution for fertility preservation. This breakthrough could benefit young cancer survivors with premature ovarian failure, enabling them to retain reproductive health for an extended period.
The Endocrine Society proposes a streamlined definition for EDCs and offers recommendations to strengthen current screening programs. The new statement outlines key issues related to identifying EDCs and protecting against adverse effects.
Researchers discovered a key brain receptor that regulates gastric emptying and food intake. Mice lacking this receptor showed accelerated obesity and faster food consumption.
Researchers found that patients treated with hormonal therapy and rehabilitation outperformed those with rehab alone on functioning and reasoning tests. Relaxin has been shown to have a tremendous promise in treating and preventing heart and blood vessel diseases.
A new study suggests that ghrelin increases the incentive for humans to eat high-calorie foods, even when already full. Rats without the ghrelin receptor gene ate less sweet treat after a meal compared to those with the intact gene.
A new study presents promising results for an investigational parathyroid hormone replacement in treating hypoparathyroidism, a rare disorder marked by low calcium and high phosphate levels. The treatment effectively regulated calcium levels and reduced the need for additional vitamin D in over half of patients.
A new study found that even mild thyroid dysfunction during early pregnancy significantly increases the risk of serious complications, including miscarriage, stillbirth, and low birth weight. The study recommends universal screening for all pregnant women in the first trimester to prevent these complications.
Weekly fertility hormone injections are as safe and effective as standard daily injections in increasing pregnancies and minimizing serious side effects. Women undergoing fertility treatment may prefer weekly injections for their patient-friendly nature.
A comprehensive review by Charlene Krejci found female hormones fluctuate throughout women's lives, allowing bacteria to grow and exacerbate conditions like bone loss and pre-term births. Women need to be vigilant about maintaining healthy teeth and gums to prevent or lessen severity of these health issues.
A hormone previously associated with calcium homeostasis boosts immune response when dietary vitamin D levels are inadequate. The discovery may provide an alternative to current antibiotic therapies for treating skin infections.
Research by UTSA College of Business professor Kristina Durante reveals that women's perceptions of men as potential fathers are influenced by hormonal fluctuations during ovulation. Women tend to overestimate the domestic contributions of sexy cads and underestimate those of reliable dads.
A recent study suggests that pleasure eating can activate the body's reward system, leading to overeating. Researchers found that the hormone ghrelin and chemical compounds like 2-arachidonoylglycerol increased during hedonic eating, overriding the body's signal that enough has been eaten.
A study found that stressed lizard mothers gave birth to smaller, but healthier, offspring with larger fat reserves, which may enhance their survival in a post-natal stressful world. Stressed mothers themselves were also more physically fit after giving birth, prioritizing self-preservation.
A recent study found that low doses of endocrine-disrupting chemicals can result in significant health effects, contradicting current testing paradigms. Researchers recommend expanded and generalized safety testing to detect potential adverse effects of these chemicals.
Researchers found that female mice exposed to very high doses of phthalates develop significant reproductive alterations and precancerous lesions as they grow up. The study provides new insights into how these chemicals affect developing female reproductive systems, with the potential for long-term health effects.
Research reveals that BRG1 gene mutations render tumor cells unresponsive to hormones like retinoic acid and steroids, leading to continued growth and spreading.
Increasing age is associated with a higher risk of death from breast cancer in postmenopausal women, particularly those over 75 years old. The study found that disease-specific mortality increases with age, even after accounting for other factors, suggesting possible undertreatment as an underlying mechanism.
A diet high in fiber, such as whole grains and legumes, reduces markers of inflammation by 22% in overweight adults. The diet also increases a hormone that regulates metabolism, providing a clinically useful strategy for reducing chronic disease risk.
A study found significant gene expression patterns among tumor samples that correlated with distant metastatic disease development. These patterns may help personalize treatment and predict which patients are likely to recur early or late.
The vasodilator hormone relaxin improved kidney function and blood flow in lab rats with polycystic kidney disease (PKD), a life-threatening genetic disorder. Relaxin also reduced the size of fluid-filled cysts and lowered collagen scores, indicating slowed scar formation.
A landmark survey of 1,006 mothers found that only 24% discussed their decision to stop childbearing with their OB/GYNs. Women were largely unaware of non-surgical permanent birth control methods like the Essure procedure, which has a 99.8% effectiveness rate.
UCLA researchers developed a new therapy based on small molecules that mimic the effects of hepcidin, a hormone regulating iron flow in the body. The findings could lead to new drugs to help prevent iron overload conditions.
A study from Arizona State University found that the hormone medroxyprogesterone acetate (MPA) in Depo Provera shots impairs memory in rodents. The researchers also measured GABA's impact on brain function, which may contribute to memory loss.
A study of 50 overweight adults found that hormone levels influencing hunger changed after initial weight loss, leading to weight regain within a year. The research suggests that addressing hunger and considering pharmacotherapy or hormone manipulation may be key to preventing relapse.
A Mayo Clinic study finds that nine out of ten commercially available thyroid support supplements contain animal-derived hormones, posing a risk to users' health. The supplements can cause significant side effects, including increased heart rate and nervousness, if taken in excess.
The NIST team uses analytical ultracentrifugation to simultaneously sort and measure light absorption of nanoparticle clusters by size. This allows for the measurement of individual cluster sizes without being confounded by other components, enabling more accurate experiments in EHS and biosensors research.
Researchers discovered that a combination of two gut hormones, PYY and GLP-1, can reduce food intake and appetite by deceiving the brain. This finding has significant implications for obesity therapy and could lead to the development of a daily pill that promotes healthy eating.
Foals weaned in the presence of other mares show reduced stress levels and adapt faster to life without their mothers. Weaning methods can significantly impact stress hormone levels in foals, with gradual separation showing less stress than abrupt removal.
Scientists have created compounds that can force corn earworms out of dormancy prematurely, prevent them from entering diapause, or block its termination. This could lead to effective tools for controlling pests and reducing agricultural losses estimated at $2 billion annually in the US.
Researchers at Penn State discovered that a viral gene in gypsy moths manipulates their hormones to induce continuous eating and prevent molting, causing them to climb and die on treetops. This behavior enhances transmission of the virus to new hosts.
Researchers at OHSU's ONPRC have developed a new contraceptive that directly targets the key enzymes responsible for releasing an egg from the ovary. This approach aims to prevent pregnancy while minimizing systemic effects and improving effectiveness compared to existing hormonal birth control methods.
Research suggests that sex hormones play a significant role in shaping women's career interests. Females with congenital adrenal hyperplasia exhibit more interest in STEM careers due to increased androgen exposure, while those without the condition prefer people-oriented jobs.
Researchers have identified a potential new target for treating obesity by studying the molecular control of appetite in mice. Nutrient intake triggers the secretion of uroguanylin, which is then converted to uroguanylin and binds to GUCY2C receptors, leading to decreased food intake.
Scientists at Thomas Jefferson University found that silencing the hormone receptor GCC affects appetite in mice, inducing obesity, while mice expressing the receptor know when to stop eating. This new neural-gut axis provides a potential therapeutic target for controlling appetite and obesity.
Researchers pinpointed a novel mechanism involving β-arrestin-1, β2-adrenoreceptors, and catecholamines in chronic stress-induced DNA damage, which can lead to various disorders including cancer, aging, and neuropsychiatric conditions.
New study reveals that programmed cell death is involved in mandibular regression in termites. During termite development, body form and structure change, including the formation of defensive organs like the nasus and regressed mouth parts.