Articles tagged with Hormones
A new study reveals that cardiac surgery causes distinct patterns of cortisol secretion, which may reflect individual physiological differences and inflammatory responses. Researchers identified three dynamic phenotypes: single-pulse, two-pulse and multiple-pulse dynamics, suggesting improved diagnostics and personalized interventions ...
A study published in the Endocrine Society's Journal of Clinical Endocrinology and Metabolism found that undertreatment with thyroid hormone replacement can lead to longer hospital stays and higher readmission rates. Patients with high TSH levels before hospitalization had a 49% higher risk of 30-day readmission.
A study published in Scientific Reports found that shelter dog hair cortisol levels increased by one-third after six weeks in the shelter, indicating elevated stress. After adoption, cortisol levels decreased, returning to pre-shelter values. The results suggest that even well-managed shelters can cause stress in dogs.
A new study reveals funding for fertility preservation policies varies across the UK, with Scotland offering the most inclusive approach. The study highlights the need for standardization of policies to ensure equal access to care for patients.
Researchers have developed a new implant that reduces ghrelin levels and body weight gain by half when exposed to laser light, offering a minimally invasive treatment option for obese patients. The implant uses a laser-activated dye to kill cells producing the 'hunger hormone'.
Researchers at UCLA found that premenopausal women with low levels of anti-Mullerian hormone are at a higher risk of experiencing significant bone loss within two to three years. The study suggests that measuring AMH levels could help physicians identify women at risk and provide targeted treatment.
A study of over 3,000 mother-child pairs from six European countries found an association between prenatal bisphenol A exposure and increased risk of asthma and wheezing in school-age girls. The study revealed a high prevalence of BPA in maternal urine during pregnancy.
A new study confirms that abnormalities in the GDF15 gene are involved in hyperemesis gravidarum, a condition causing severe nausea and vomiting during pregnancy. The discovery may lead to targeted treatments and improved care for women with HG.
Researchers discovered that bacteria suppress membrane protein transport in response to stress, using alarm hormones to regulate the process. This allows the microorganisms to slow down their cellular processes and recover when conditions become more favorable.
A study of 104 transgender and nonbinary youths found that gender-affirming care reduces depression and suicidal thoughts over 12 months. The treatment significantly improved mental health outcomes in the participants.
Researchers found that genetic relatedness correlates with hormonal responses and behavioural reactions in fish, allowing for selective breeding of less-stressed fish. This approach could simplify breeding methods for aquaculture and aquariums.
Research published in BMJ Open found that older women with higher oestrogen levels had a lower risk of severe COVID-19 infection and death. Women taking hormone replacement therapy also showed a significantly reduced risk of dying from COVID-19, highlighting the potential benefits of hormonal treatment in reducing infection severity.
Researchers discovered a protein called PHR regulates arbuscular mycorrhiza (AM) symbiosis based on phosphate availability. AM promotes phosphate uptake and other nutrient absorption, enhancing plant resistance to stressors.
Researchers discovered that toxic goiter causes shrinkage in central brain regions, such as the hippocampus and amygdala, which can lead to mental symptoms. The study provides key insights for patients with Graves' disease, a common form of hyperthyroidism.
A UMass Amherst study found associations between oral contraceptive use and certain tubal ligation methods with lower levels of antimüllerian hormone (AMH), a biomarker for ovarian aging. This may suggest an increased risk for early menopause in women who have used oral contraceptives or undergone specific types of tubal ligation.
A study published in PLOS Medicine found associations between obesity and various female reproductive conditions. Researchers used Mendelian randomization to investigate causal links between body mass index, waist-to-hip ratio, and risk of conditions like uterine fibroids and pre-eclampsia.
UC researchers received a $1.2 million grant to examine the impact of stress hormone receptors on cell degeneration in Parkinson's disease. The study aims to develop a new model that better replicates the progression of the disease, which may lead to treatments targeting stress hormone blockers or next-generation therapeutics.
A study suggests that nearly 60 percent of the risk associated with coronary artery disease may be explained by changes in hundreds of genes working together in networks across several organs. Fat processing hormones may play a central role in coordinating this activity.
A study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that abnormal thyroid hormone levels during pregnancy may predict preschool boys' emotional and behavioral problems. Mothers with high thyroid hormone levels were more likely to have withdrawn, anxious, or depressed sons.
Researchers discovered a new hormone, fabkin, that regulates metabolism and controls insulin production in pancreatic beta cells. Blocking fabkin's activity prevented the development of both forms of diabetes in mice, suggesting its potential as a therapeutic target.
A new study from the University of South Australia found that vitamin D deficiency is associated with a higher risk of heart disease and higher blood pressure. Increasing vitamin D levels in deficient individuals may prevent up to 4.4% of all CVD cases, according to the research.
A new review in the Journal of Dairy Science explores the relationship between serotonin and calcium metabolism in dairy cows, highlighting its importance in maintaining calcium balance. Research shows that mammary serotonin drives hormone production that modulates mammary calcium transport.
Researchers at Tel Aviv University conducted a cross-adoption experiment with fruit bat pups to determine whether boldness is genetic or learned. The findings indicate that the pups behave like their adoptive mothers, not biological mothers, suggesting that boldness is an acquired trait passed on through mother's milk.
Recent clinical and experimental data suggest that vascular calcification and bone loss share common pathophysiological mechanisms. The International Osteoporosis Foundation's new review elucidates the key associations between the two disorders.
A new mobile phone app called GrowthMonitor can accurately measure children's height and detect potential growth disorders, enabling early diagnosis and treatment. The app uses a traffic light system to inform parents of normal, amber, or red growth status, empowering them to take action.
Researchers discovered that a single protein, Kr-h1, responds to socially regulated hormones to orchestrate the complex social transition in Harpegnathos saltator ants. The study reveals important roles for gene regulation and hormone response in controlling animal brains' plasticity.
About 42% of U.S. adults are considered clinically obese due to increased risk of health conditions such as diabetes and heart disease. New weight-loss drugs like Wegovy (semaglutide) show promise in safely aiding weight loss, but long-term side effects and sustainability remain concerns.
A new study found that women whose menstrual cycle length increased two years before menopause had better vascular health than those with stable cycles. Changes in cycle length may predict cardiovascular disease risk, allowing clinicians to recommend preventive strategies.
A study published in The Journal of Sex Research found that higher testosterone levels are associated with having multiple partners in men and solitary sexual activity in women. The research, which analyzed data from nearly 4,000 adults, highlights the complex relationship between hormones and human sexuality.
A study found that meditation training reduced chronic stress by 25% through decreased cortisol levels in hair. The researchers used a 9-month training programme to measure the effect, and the results showed that only sufficiently long training leads to significant stress-reducing effects.
Research suggests that people sensitive to stress hormones are at greater risk of developing cardiovascular disease, with markers indicating increased risk of stroke and heart attack. A novel proteomic signature may help identify these individuals and inform stress management strategies.
Researchers at UT Southwestern Medical Center discovered a gene linked to eczema that regulates sex hormones and skin lipid production. The study suggests that targeting this gene could provide relief for patients with eczema by increasing sebum production.
Chronic light exposure disrupts circadian rhythms in rats, leading to memory deficits and amyloid β accumulation similar to Alzheimer's disease. Fluoxetine treatment prevents these effects, suggesting a potential therapeutic strategy.
Researchers found that a gene called REST is crucial for boosting insulin-producing cells during early pancreas development. Inactivating this gene increased the number of insulin-producing cells, which were maintained into adulthood in mice.
Researchers found that pituitary hormone ß-endorphin and Arg-vasopressin contribute to movement impairments on the opposite side of the body after a brain injury. Blocking these hormones may help treat movement problems following stroke or injury, targeting left and right sides differently.
Researchers found that stronger early-life social connections and maternal care correspond to lower adult stress hormone levels and fewer DNA modifications. This study suggests that early experiences have a lasting impact on health and stress response in wild animals.
Researchers at RUDN University have discovered a new three-component reaction that results in the synthesis of acetimidamides, heterocyclic compounds with biological activity. The reaction reaches an efficiency of up to 96% and can be used for the synthesis of hormones, anti-inflammatory drugs, and other medical substances.
Researchers have developed a new method to rapidly monitor snow leopard stress levels in the wild using widely available equipment. The method extracts hormones from faecal samples and analyzes them on-site, allowing for quick and easy assessment of stress status.
Researchers found that castration of male sheep leads to delayed DNA aging compared to intact males, with epigenetic clocks and DNA methylation patterns differing between the two groups. The study's findings also suggest a link between castration, male hormones, and sex-specific differences in DNA aging.
A Rutgers-led team developed a microchip that can measure cortisol and other stress hormones in real-time from a single drop of blood, providing patients with timely feedback for better treatment. The miniaturized device has the potential to be used for non-invasive cortisol measurement in other fluids.
Female fruit flies undergo a behavioral change after mating, becoming more selective towards males with higher levels of aphrodisiac pheromone. This preference is induced by the juvenile hormone and reduces their sensitivity to pheromones, leading them to prefer males with more attractive scents.
A recent study by the National Food Institute found that clotrimazole, an over-the-counter fungicide, can significantly alter sex hormones in pregnant rats and their developing fetuses. This exposure was observed at concentrations comparable to those experienced by human mothers taking clotrimazole to treat vaginal thrush. The research...
A study examining COVID-19 severity found associations between circulating sex hormones and disease outcomes in patients, highlighting the need for further research on hormonal factors. The investigation, published in JAMA Network Open, suggests that hormonal imbalances may contribute to varying levels of disease severity.
Clownfish develop white stripes during metamorphosis, with varying rates of formation depending on the sea anemone host. Thyroid hormone influences white bar development, with higher concentrations leading to more bars and earlier development.
Researchers discovered that clownfish develop white stripes faster in giant carpet anemone hosts due to higher levels of thyroid hormones and increased duox gene activity. Thyroid hormone levels correlate with duox expression, leading to faster bar formation in giant carpet anemone clownfish.
Researchers have identified two subtypes of POMC neurons with distinct hormone sensing and appetite suppression profiles. The findings suggest that the diversity of these neurons is crucial for their function in regulating metabolism.
A large survey of women in California found significant racial and ethnic differences in personal care product use, with Black women more heavily exposed to endocrine-disrupting chemicals. The study aims to fill the gap in data on products used by women of color and informs guidance for self-protection and policy development.
Researchers at the University of Copenhagen have discovered a better way to target and eliminate beetles using eco-friendly methods. The study found that beetles regulate their kidney function in a unique way, which can be exploited to disrupt their fluid balance without harming other insects.
Scientists have discovered how a unique molecular switch in the brain causes feelings of fullness and may help develop improved anti-obesity drugs. The melanocortin receptor 4 is activated by setmelanotide, which binds to its binding pocket and enhances binding with calcium ions.
Women with bulimia nervosa performed worse on a task requiring self-control when stressed, but not those with anorexia nervosa. Brain activity differences were observed between the two groups when stressed, with women with bulimia showing impaired pre-emptive slowing down.
A study in red-haired mice reveals that a variant of the melanocortin 1 receptor affects pain sensitivity. The researchers found that lower levels of certain hormones lead to more opioid signals, elevating the pain threshold.
A new study has found a link between early exposure to flame retardants and an increased risk of premature birth in pregnant women. Women with high levels of polybrominated diphenyl ethers (PBDEs) in their blood were more likely to deliver their babies early, with no such association seen for those with lower exposure levels.
A study published in ENDO 2021 found that children with adrenal insufficiency are at a significantly higher risk of severe COVID-19 complications due to impaired cortisol production. The researchers analyzed data from over 846 children with the condition, revealing a mortality rate 10 times higher than in children without adrenal disease.
A new study reveals that higher ghrelin levels in healthy females predict a greater preference for smaller immediate monetary rewards over larger delayed financial rewards. This indicates more impulsive choices, contradicting previous research findings in rodents suggesting a similar effect.
A recent study found that nearly one-third of adults over 65 taking thyroid hormone also use medications known to interfere with thyroid function tests. The study highlights the complexity of managing thyroid hormone replacement in older adults, who often take multiple medications for other conditions.
Thyroid hormone doesn't operate as a straight-on/off switch but rather shifts the balance between gene activity, revealing a more nuanced mechanism of action. This discovery has significant implications for understanding metabolic diseases and developing targeted therapies.
A wearable sensor developed by EPFL's Nanolab and Xsensio measures cortisol levels in sweat to detect signs of burnout, providing a non-invasive and precise way to quantify stress levels. This innovation has the potential to revolutionize the study of physiological rhythms and the treatment of stress-related diseases.
A recent study published in Maturitas found that UV-radiation can affect the levels of oestrogens and gonadotropins in postmenopausal women, increasing the risk of osteoporosis, cardiac diseases, and neurodegenerative diseases. Researchers recommend carefully monitoring sun exposure to prevent harm.
A recent NIH study found that women who use cannabis while trying to conceive are around 40% less likely to get pregnant each month. The study of over 1,200 women aged 18-40 with one or two miscarriages found no difference in miscarriage rates but noted differences in reproductive hormones involved in ovulation.
Researchers found that high cortisol concentrations in newborn fawns were associated with lower survival rates. Cortisol levels varied between study areas, suggesting other environmental factors may influence mortality rates.