Articles tagged with Hormones
A recent study found that over a quarter of new mothers have fallen asleep while feeding their babies, increasing the risk of sudden infant death syndrome (SIDS). Researchers are urging care providers to inform new moms about the potential risks and provide guidance on safe feeding practices.
A recent study found that children born to mothers with polycystic ovary syndrome (PCOS) are at a higher risk of lower birth weight, shorter stature, and smaller head circumference. The researchers believe that the placenta's inability to meet the baby's demands due to PCOS-related hormonal imbalances may be the cause.
A new study reveals that benzyl butyl phthalate (BBP) causes oxidative stress and DNA strand breaks, leading to cell death and abnormal chromosomes in egg cells. The research suggests that BBP exposure can lead to lower quality egg cells with compromised genomic integrity.
The study reveals hormone-dependent molecular mechanisms that cause sexual dimorphism in chicken feathers, including the role of thyroid hormone activation/inactivation system. The findings also shed light on the cultural significance of chickens in Japanese society and its impact on promoting social cohesion.
A team of researchers has developed strategies to identify regulators of intestinal hormone secretion, which could lead to new treatments for metabolic and gut motility disorders. They used human organoids to study the function of 'nutrient sensors' on hormone-producing cells in the gut.
A Danish nationwide study found an association between levonorgestrel-releasing intrauterine system (LNG-IUS) use and increased breast cancer risk in females ages 15 to 49. The absolute breast cancer risk is low, but the study revealed an excess risk of 14 per 10,000 females, which did not increase with duration of use.
Research suggests that exposure to musk ambrette and cholinergic agonists can trigger early female puberty by activating key hormone receptors. This study highlights the importance of regulating personal care products and environmental chemicals to mitigate potential health risks.
Researchers have developed a cost-effective and easily reproducible point-of-care testing device that can accurately measure cortisol levels in the blood. The device uses iridium oxide nanoparticles to improve stability, sensitivity, and selectivity, allowing for commercial use.
A group of scientists discovered that the Black and white tegu lizard can raise its own body temperature during the reproductive season, even in a dark burrow. The study found that this phenomenon is due to the increased production of mitochondria and a protein called ANT, which generates heat.
Research highlights the need for further study on the impact of sustained heat exposure on hormone release and action. Heat exposure is associated with decreased fertility, increased risks of pregnancy complications and menopause symptoms, as well as worsened conditions like thyroid disorders and diabetes mellitus.
The risk of developing type 1 diabetes (T1D) decreases in girls after age 10, while the risk in boys remains stable. Males with a single autoantibody have a significantly higher risk of T1D than their female counterparts.
A study published in Andrology found that testosterone therapy significantly improves body composition in transgender men, with no long-term side effects. Researchers also discovered that higher doses of testosterone may lead to faster results.
The Joint Guideline provides guidance on diagnosing and treating GC-AI, a condition affecting at least 1% of the global population. The guideline aims to improve patient care and outcomes worldwide.
Researchers found that plastic food packaging contains a vast array of toxic chemicals, affecting hormone secretion and metabolism. The study identifies 11 chemical combinations that can activate G-protein-coupled receptors, potentially disrupting bodily functions.
A new study from Binghamton University found that couples who receive more negative social support tend to experience higher levels of cortisol, a hormone associated with stress reactions. In contrast, those who receive positive support exhibit lower cortisol levels and feel more understood, validated, and cared for by their partner.
Researchers found a strong bidirectional relationship between premenstrual disorders and perinatal depression among over 900,000 women. Women with perinatal depression were more likely to develop premenstrual disorders after pregnancy and childbirth.
Researchers discovered a feedback loop involving estrogen that may explain why women become more dependent on nicotine. Estrogen-induced proteins called olfactomedins could be targeted with therapies to help control nicotine consumption.
A study by Linköping University found that a daily intake of liquorice containing 100mg glycyrrhizic acid raised blood pressure by an average of 3.1mmHg in young healthy people. This effect was seen in all participants, but the most sensitive individuals showed increased fluid volume and heart workload.
Research by Norwegian University of Science and Technology finds that high-intensity interval training increases breast milk's adiponectin levels, a hormone linked to insulin resistance and type 2 diabetes. This could help prevent childhood obesity.
The Wim Hof method has been found to increase epinephrine levels and decrease pro-inflammatory cytokines, indicating a potential anti-inflammatory response. However, its impact on exercise performance is less clear, with some studies showing benefits and others finding no significant difference.
Research reveals oestrogen's protective role in preventing fatty liver disease by targeting the TEAD1 protein. The discovery could lead to a new treatment for fatty liver and liver cancer, as well as earlier detection methods.
A recent study published in Hypertension reveals that aldosterone-producing adenomas are composed of multiple cell types that work together to promote tumor growth. The research identified two distinct cell fates involved in hormone production, with cells expressing genes associated with aldosterone synthesis and cortisol production.
Researchers found that synthetic PIC gel can stimulate cell growth and increase collagen production, potentially improving wound healing after pelvic organ prolapse surgery. The study also showed a mild immune response to the gel when tested on laboratory animals.
Research reveals oxytocin neurons in mouse brain modulate object recognition memory, with activation boosting long-term memory and implicating Alzheimer's disease. Oxytocin's role in social memory also highlighted, suggesting a potential link to loneliness or limited social engagement.
A study by Washington State University researchers found a potential link between high maternal cortisol levels and unpredictable birth complications. Cortisol measurements in hair samples revealed elevated stress hormone levels among women who later experienced unexpected birth problems, such as early births or hemorrhaging.
Middle-aged women exposed to toxic metals have fewer eggs in their ovaries as they approach menopause, according to a new study. The researchers found that higher levels of heavy metals such as arsenic and cadmium are associated with lower Anti-Müllerian hormone levels, indicating diminished ovarian reserve.
Researchers from Osaka University and University of Hawaii found that environmental microorganisms boost fruit fly reproduction by modifying hormone levels and increasing the production of germline stem cells. This discovery could lead to new avenues for improving reproductive health and fertility treatments.
A study published in Environmental Health Perspectives found that exposure to phthalates can lower the odds of getting pregnant, but not lead to pregnancy loss. The researchers also discovered associations between preconception phthalate exposure and changes in women's reproductive hormones, inflammation, and oxidative stress.
A recent study published in Lancet Oncology has found that measuring blood hormone levels can identify post-menopausal women who are most likely to benefit from anastrozole, a medication used to prevent breast cancer. The study suggests that inexpensive blood tests could be used to personalize preventive therapy for these women.
A study by UNICAMP researchers found high concentrations of contaminants in the Piracicaba, Capivari and Jundiaí River Basin, including PFAS compounds, pesticides, and industrial chemicals. The study highlights the severity of pollution in the region, which supplies water for drinking, irrigation, and industry.
Researchers at University College London found that a hunger hormone produced in the gut directly impacts activity of the brain's hippocampus when considering food. The study showed that ghrelin receptors play a crucial role in controlling an animal's instinct to eat, with implications for understanding eating disorders and human health.
A study found that women using oral contraceptives had a thinner ventromedial prefrontal cortex than men, which is thought to sustain emotion regulation. The effects of COCs on brain development and emotional regulation are still not well understood, highlighting the need for further research.
Researchers found that thyroid hormones of the mother during pregnancy affect the later activity of brown adipose tissue in offspring. High maternal thyroid hormone levels were associated with more active brown fat in offspring.
A new study reveals female sex hormones play a crucial role in how Alzheimer's manifests in the brain, with estradiol contributing to variation in beta-amyloid protein regulation. This understanding is necessary for developing targeted therapies.
A recent study discovered two subgroups of people with idiopathic generalized epilepsy, one experiencing highest incidence during sleep and the other during daytime. The researchers found that either dynamics of cortisol or sleep stage transition explained most of the observed distributions of epileptiform discharges.
A University of Cincinnati study found that exposure to PFAS may delay the onset of puberty in girls by an average of five or six months. The researchers also discovered decreased hormone levels consistent with the delay, raising concerns about negative long-term health outcomes such as breast cancer and renal disease.
Websites selling direct-to-consumer AMH tests frequently include misleading information, potentially causing anxiety or reassurance among consumers. The study found that these claims can lead to misplaced decisions on conception or contraceptive plans, highlighting the need for accurate and transparent fertility testing.
Research shows that wild birds in vineyards are highly susceptible to triazole fungicide contamination, disrupting hormones and metabolism, impacting reproduction and survival. Vineyards use significantly more fungicides than other crops, posing a unique threat to bird populations.
Inflammatory breast cancer is a rare and aggressive form of breast cancer with poor outcomes. Research highlights the role of ERβ as a mediator of estrogen signaling, demonstrating its tumor suppressive effects in preclinical models. ERβ's antimetastatic activity may hold promise for improving treatment options for IBC.
A small study suggests that vaginal progesterone treatment can increase the chances of conception in couples with unexplained infertility. The treatment, which is safe and low-cost, showed more than double the birth rate among treated women, but further research is needed to confirm these results.
A randomized clinical trial found that rapid access to testosterone therapy significantly reduced feelings of gender dysphoria and depression among transgender adults. The study also showed a 50% reduction in suicidal ideation compared to those on a standard waiting list.
The Endocrine Society's new scientific statement distinguishes between normal aging and endocrine disease in older adults. Menopausal symptoms and osteoporosis are often undertreated despite being treatable.
The use of alternative thyroid hormone treatments is on the rise for hypothyroidism patients. A study found that desiccated thyroid extract (DTE) prescriptions have doubled over a decade, while T3 therapy has seen a significant increase in rural areas. Access to endocrine care may contribute to these disparities.
A new study from the Stowers Institute for Medical Research reveals the placenta's polyploid cells play a vital role in supporting healthy embryonic development. The modified cell cycle controlling polyploidy is governed by the regulatory gene Myc, which supports DNA replication and prevents premature cellular aging.
In a breakthrough study, researchers discovered that the neuropeptide DH31 regulates reproductive dormancy in insects, controlling juvenile hormone production. This finding could lead to the development of new technologies to control agricultural pests and infectious disease vectors.
Women with short or long menstrual cycles are at increased risk of cardiovascular disease events such as heart attack or AFib. The study analyzed data from over 58,000 women and found that irregular menstrual cycle length was associated with higher risks of CVD, independent of other factors.
Researchers found that dietary fructose is necessary for increased germline stem cells after mating, which leads to enhanced post-mating egg production. The study reveals that circulating fructose stimulates the fructose-specific taste receptor in insects.
Researchers at the Max Planck Institute found that ghrelin activates specialized nerve cells in the amygdala, promoting food consumption and conveying hunger feelings. The study uncovers the physiological processes behind feeding behavior, which may lead to novel therapeutic approaches for eating disorders.
A systematic review of research on gender-affirming hormone therapy among transgender people found that the therapy reduces depressive symptoms and psychological distress. The study analyzed data from 46 relevant journal articles and identified inconsistent findings across other areas, warranting further investigation.
Researchers found that four weeks of shift work-like patterns in female mice disrupted their biological clock and reduced fertility. The study suggests that circadian disturbances impact female fertility and may lead to future prevention strategies.
High levels of cortisol during the third trimester of pregnancy have been linked to improved speech and language skills in young children. Research found that boys exposed to high cortisol had better word-saying abilities, while girls showed enhanced understanding skills.
Researchers have observed beta-arrestin molecules directly controlling receptor-mediated signals in living cells using advanced microscopy. The study reveals a new mechanism of how these proteins interact with receptors on the plasma membrane, enabling efficient control of signal flow and desensitization.
A recent study published in Brain found that stress increases Alzheimer's risk in female mice by elevating amyloid beta levels, while male mice do not exhibit this effect. The researchers identified a cellular stress response pathway in brain cells that is active in females but not males.
The study revealed lower age-standardized rate of NENs incidence in China (1.14 per 100,000) compared to the USA (6.26 per 100,000). The most common sites for primary NEN tumors progressed were found to be the pancreas, stomach, lungs, and rectum.
A Rutgers University study finds that inhaling plastic particles can disrupt sex hormones in female lab rats, leading to impaired vascular function and decreased reproductive hormone levels. The researchers used a commercially available food-grade nylon powder and aerosolized it for the rats to breathe in.
Researchers at MIT developed an ingestible capsule that delivers electrical stimulation to the stomach, boosting ghrelin production and potentially alleviating nausea and appetite loss. The device uses a grooved surface to create a drier environment for electrodes to contact stomach tissue.
A recent study found that males on reduced calorie diets showed greater fat loss and improvements in blood sugar levels compared to females in young adulthood. However, when dieting began at older ages, there was no significant difference in fat loss between sexes.
A new study finds that pet rabbits require daily freedom to exercise outside their home enclosure, even in larger hutches with access to an exercise area. The research highlights the importance of allowing pairs of rabbits to move freely throughout the day.
Researchers have found that the subfornical organ senses circulating parathyroid hormone (PTH) and modulates its peripheral level. PTH then alters bone metabolism and remodeling, highlighting a critical role of the brain-parathyroid-bone axis in maintaining bone homeostasis.
Researchers found that a neuropeptide called GLWamide regulates feeding in jellyfish, while myoinhibitory peptide (MIP) does the same in fruit flies. The discovery highlights the deep evolutionary origins of a conserved satiety signal.