Articles tagged with Hormones
A study published in CMAJ found that metformin increases the risk of low thyroid-stimulating hormone levels in patients with hypothyroidism. Metformin monotherapy was associated with a 55% increased risk of low TSH levels compared to sulfonylurea therapy.
The study found that younger people have a more robust immune response to grief, while elderly people are more likely to experience reduced immune function. The researchers suggest that hormonal supplements could be used to help individuals at risk of stress, but highlight the importance of a strong support network in managing grief.
A study published at Lund University found that spinach extract containing thylakoids reduces hedonic hunger by up to 95% and increases weight loss by 43%. The study showed improved appetite control, healthier eating habits, and increased weight loss in participants who took the thylakoid extract before breakfast.
Women seek anti-aging clinicians to treat menopausal symptoms, valuing personalized attention and perceived safety of bioidentical hormones. The study found that these women prioritize relieving symptoms, feeling energized, and avoiding chronic illnesses associated with aging.
A study by the Endocrine Society found that women with vitamin D deficiency were nearly half as likely to conceive through IVF as those with sufficient levels. Women with adequate vitamin D levels had higher-quality embryos and increased chances of successful implantation.
A study found that retinoblastoma protein is less active in male brain cells, leading to higher brain tumor rates and poorer survival rates. The researchers believe this discovery could lead to more effective therapies and treatments.
Researchers have successfully used kisspeptin to stimulate ovulation in women undergoing IVF treatment, reducing the risk of OHSS. Twelve babies were born after their mothers received the hormone injection, with 12 becoming pregnant and nine having healthy embryos transferred.
Levothyroxine treatment improved cognitive and learning abilities in naturally aged mice by increasing choline acetyltransferase and acetylcholine levels. The supplement also enhanced superoxide dismutase activity and synapse function, suggesting a potential therapeutic strategy for age-related cognitive deficits.
A new study by NYIT College of Osteopathic Medicine professor A. Martin Gerdes found that administering low doses of thyroid hormone can restore hormone levels in the hearts of rats with diabetes and prevent deterioration of heart function.
Researchers found that low levels of the stress hormone cortisol are strongly correlated with voting behavior, while age is also a predictor. The study suggests that biological factors can play a role in voter turnout, complementing social and demographic variables.
Cathryn Jakobson Ramin received the Endocrine Society's Award for Excellence in Science and Medical Journalism for her investigation into hormone compounding risks. Her article, 'The Hormone Hoax Thousands Fall For', found inconsistencies in hormone prescriptions across multiple pharmacies.
A recent study has found that hypothyroidism can cause impaired driving abilities, comparable to the effects of drinking alcohol. The research suggests that patients with significant hypothyroidism should avoid driving until they have been treated with thyroid hormone.
A study found that older adults have fewer taste buds, leading to higher fasting blood sugar levels and lower adiponectin levels. The researchers suggest a link between the number of taste buds and glucose metabolism during aging.
A new study found that elevated stress hormones are associated with structural brain changes and short-term memory deficits in aged rats. The research suggests that stress may accelerate age-related cognitive decline by altering brain connections and function in the prefrontal cortex.
Research at the University of Iowa found a link between high cortisol levels and gradual loss of synapses in the prefrontal cortex, leading to short-term memory lapses. Elevated cortisol can cause synapse shrinkage and disappearance, particularly in older adults, potentially slowed by treatments targeting cortisol reduction.
Researchers develop computer model to speed up search for compound that activates FFA4 protein, a key player in appetite regulation and glucose uptake. The model aims to identify molecules that bind to the protein, potentially leading to a new obesity treatment.
A UCLA research team has discovered a new hormone called erythroferrone, which regulates the iron supply needed for red blood-cell production. Erythroferrone suppresses hepcidin, allowing more iron to be made available for red blood-cell production and potentially treating iron disorders.
A new study found that PMS before menopause is linked to a poorer quality of life after menopause, particularly with depression, poor sleep, and memory problems.
Researchers tested whether ancestral human diets, or paleo diets, result in better appetite suppression. They found that high-fiber plant-based diets likely do not lead to increased SCFAs and appetite suppression, but rather may help baboons maintain grazing all day to consume enough nutrients.
Research from Washington State University found that children who participate in horse-riding programs have lower stress hormone levels. The study, which measured cortisol levels in saliva samples, suggests a potential prevention strategy for young adolescents at risk of developing physical and mental health problems.
A team of researchers found that differences in response kinetics dictate differential sensitivity to different features of pulsatile hormone inputs. The study explored the mechanism underlying dynamic gonadotropin-releasing hormone (GnRH) signalling using live cell imaging and mathematical modelling.
Scientists propose that conventional steroid treatments deliver medication in a way that disrupts the body's natural hormone release patterns, leading to debilitating side effects. The report recommends developing novel techniques to mimic these natural cycles, which could alleviate suffering for patients.
A recent study has demonstrated that women's preferences for facial attractiveness in professional cyclists coincide with improved endurance performance. The research, conducted by Erik Postma at the University of Zurich, analyzed over 800 portraits and found that attractive riders fared better during the Tour de France.
Researchers found that a protein molecule on stem cells interacts with extracellular matrix and thyroid hormones to promote brain growth. Iodine deficiency in pregnant women can lead to abnormal brain development due to the lack of thyroid hormones.
Research found that shivering releases irisin, a hormone that stimulates calorie-burning brown fat and improves metabolism. This mechanism is similar to exercise-stimulated secretion of irisin, suggesting potential benefits for treating or preventing obesity.
Researchers discovered a novel metamorphosis hormone that triggers the transformation of moon jellyfish from polyps to medusas in response to cold temperatures. This understanding may offer new methods for controlling moon jellyfish blooms and preventing ecological damage.
A study published in Environmental Science & Technology found that bottlenose dolphins in Barataria Bay, Louisiana, have lung damage and adrenal hormone abnormalities. The researchers believe that the Deepwater Horizon oil spill may be responsible for these health effects.
A new study found that obese children have higher stress hormone levels than normal-weight peers, with elevated cortisol concentrations detected in hair samples from age 8. The observational case-control study analyzed hair samples from 20 obese and 20 normal weight children to measure long-term cortisol levels.
Eating a tomato-rich diet for 10 weeks increased adiponectin levels by 9 percent in postmenopausal women, reducing breast cancer risk. Regular consumption of fruits and vegetables is believed to promote breast cancer prevention in at-risk populations.
A study found that bonobos have higher levels of thyroid hormone T3 until adulthood, unlike humans and chimpanzees. This might impact their social behavior and cognitive development, potentially leading to delayed maturation.
A recent international study found two lower-dose intrauterine contraceptive systems to be highly effective and well-tolerated over a three-year period. The devices were easier to use in women who had not delivered a child or had delivered by cesarean section, making them a suitable alternative for women seeking reduced hormone exposure.
New research suggests that 55% of bilateral adrenal Cushing's syndrome patients have genetic mutations predisposing to adrenal tumors. Genetic screening may help identify affected family members, potentially preventing disease progression and eliminating current treatment practices.
A new hormone therapy has been shown to improve the integration of bone grafts used in head and facial reconstruction surgeries. The treatment, which uses parathyroid hormone, enhances bone formation around the grafts and prevents scar tissue from forming, leading to better outcomes for patients.
Women who underwent bariatric surgery experienced significant improvements in sexual functioning, including arousal and satisfaction, as well as better reproductive hormone levels and reduced depressive symptoms. They also reported improved body image after weight loss.
Women who underwent bariatric surgery reported significant improvements in overall sexual function, including desire, arousal, lubrication, and satisfaction. Additionally, they experienced gains in reproductive hormones and psychological status.
A new testing approach can better detect parathyroid hormone imbalances in end-stage kidney disease patients, which are linked to higher mortality rates. The study found that patients with higher levels of non-oxidized parathyroid hormone had a lower risk of death.
A study found that older individuals with low thyroid hormone levels, particularly T3, have a higher risk of death from all causes and cardiovascular disease. The research suggests that thyroid hormone levels could be a useful predictor of survival rates in hospitalized elderly patients.
Researchers have identified a molecular mechanism behind hyperphagia in obese patients, where specific antibodies stabilize ghrelin, leading to increased appetite. This discovery opens new opportunities for designing treatments targeting this mechanism to reduce excessive food intake.
A recent study published in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that vitamin D supplements do not reduce bone turnover or protect bone health in postmenopausal women. In contrast, calcium supplements significantly reduced bone turnover and decreased the risk of osteoporosis.
Researchers have discovered that thyroid hormone affects blood vessel constriction, leading to sensitivity to temperature extremes. This knowledge may help future treatment of patients with thyroid disorders who experience temperature-related symptoms.
The American Thyroid Association's Taskforce on Approaches and Strategies to Investigate Thyroid Hormone Economy has released a comprehensive guide with 70 specific recommendations to standardize study design in thyroid research. This will lead to more standardized approaches, improving the comparability of results and informing the de...
A recent study found that glucagon, a hormone involved in regulating appetite, fails to induce feelings of fullness in obese individuals. However, it successfully suppresses hunger pangs in people with type 1 diabetes, according to researchers from The Endocrine Society.
A new study by Tufts University suggests that vasectomy may be more effective than traditional neutering in managing feral cat populations, as it prevents reproductive hormones from protecting turf from competitors. The research supports the use of a trap-vasectomy-hysterectomy-release method to control feral cat colonies.
Researchers discovered a genetic mutation in zebrafish that causes chronic stress and depression-like behavior. Adding an antidepressant restored normal behavior, suggesting a link between cortisol regulation and affective disorders.
A study by Concordia University researchers found that optimists tend to have more stable cortisol levels, indicating better regulation of stress. In contrast, pessimists struggle to control their stress response, especially during high-stress situations.
Research links perfluorinated chemical (PFC) exposure to changes in thyroid function, particularly in women, with elevated levels of T3 and T4 hormones. PFCs found in various products may increase the risk of mild hypothyroidism without triggering a natural hormonal response.
Researchers found that Arg-Phe-amide-related peptide-1 modulates the hypothalamus-pituitary-gonadal axis by inhibiting kisspeptin-activated gonadotropin-releasing hormone neurons. The study also revealed a potential role for gonadotropin-inhibitory hormone in regulating reproductive development.
Research suggests that simultaneous boosting of these hormones can reduce appetite, fat gain, and insulin-resistance in mice. The double-barreled approach stimulates complementary brain regions and nerve pathways, leading to a powerful combined effect.
A clinical study found that kisspeptin effectively induces egg maturation in women undergoing IVF treatment, reducing the risk of ovarian hyperstimulation syndrome. The hormone triggers natural reproductive hormone release, resulting in healthy babies.
Researchers found that vitamin D deficiency is linked to early onset of puberty in girls, with 44% having severe deficiencies. Vitamin D supplementation may help delay pubertal onset and progression.
A new study has identified corticosterone as a potential biomarker of fetal stress during labor and delivery. Corticosterone concentrations increased by 148% compared to cortisol, suggesting that it may serve as an indicator of infant distress.
A study published in PLOS ONE found that healthy, full-term babies secrete higher levels of corticosterone during labor and delivery compared to their mothers. Corticosterone concentrations increased with fetal distress and were linked to the method of delivery, with vaginally delivered infants producing more cortisol.
A new observational study found that overweight and obese men secrete greater amounts of stress hormones after eating. Cortisol levels increased by 51% in the overweight group compared to 5% in the normal-weight group.
Researchers found that children who appear to succeed socially may be failing biologically due to chronic stress. Those with high self-esteem and academic success show elevated levels of stress hormones, blood pressure, and BMI, increasing risk for chronic diseases.
A recent study found that practicing meditation and stretching can help relieve PTSD symptoms in nurses by regulating stress hormone levels. Cortisol levels responded favorably to mind-body exercises, decreasing PTSD symptoms by 41% in those who participated.
Researchers found that fetuses produce a hormone called adrenomedullin, which protects mothers from preeclampsia. This discovery could lead to new methods for detecting and preventing the condition.
Research by NC State University scientists found pesticide exposure causes more male offspring and reproductive problems in female Daphnia, a keystone species impacting population dynamics. Exposure levels as low as 71 nanograms per liter had significant impacts on reproductive health.
A recent study found that long-term cortisol exposure in seniors is associated with an increased risk of heart disease and stroke. The study used scalp hair analysis to measure cortisol levels over a three-month period, revealing a clear link between chronically elevated cortisol levels and cardiovascular disease.
A monkey study by the University of Manchester and Liverpool has found that middle-ranking macaques experience high levels of social stress due to conflicts with both lower- and higher-ranking individuals. The research suggests a possible application to human hierarchies, particularly in workplace settings.
Research from the Shamatha Project at UC Davis suggests that mindfulness training can lower cortisol levels, a hormone associated with physical and emotional stress. The study found a correlation between high scores in mindfulness and low cortisol levels before and after an intensive meditation retreat.