Articles tagged with Hormones
A new study found that women exposed to Agent Orange during the Vietnam War had higher levels of hormones in their breast milk, which were then transferred to their babies. The research revealed a nearly three-fold increase in DHEA in babies from dioxin hotspots compared to non-contaminated regions.
Researchers found that signalling by prolactin to its receptors is essential for mothers to show vital maternal nurturing behaviour towards their young. This discovery may explain why some animal species abandon their young and highlights the importance of prolactin in establishing a bond between mother and baby.
A newly-discovered reflex arc disrupts hormone secretion by adrenal glands, leading to increased bacterial infections. Trauma-induced spinal cord injuries weaken the immune system, resulting in severe infections and hindering nervous tissue regeneration.
A UC Riverside-led study identified two hormones (ecdysis triggering hormone and juvenile hormone) and a neurotransmitter (dopamine) that regulate courtship memories in males. The study found that these molecules are critical to maintaining aversive memories of failed courtship attempts, influencing future behaviors.
Kimera Biotecnologia's biotech eCG has proven as effective as conventional eCG, reducing production costs by 30-50% and eliminating animal blood use. The hormone is produced in the lab, hastening puberty, inducing superovulation, and increasing fecundity.
Scientists have discovered the key trigger molecule that helps mature red blood cells. By removing a hydrophobic molecule from serum using charcoal filters, researchers found that adding back just thyroid hormone triggers red blood cell maturation.
Developed by a team of researchers, the biosensor uses antibody fragments and polyethylene glycol molecules to detect target compounds in serum. The device can diagnose many conditions and illnesses at sub-picomolar concentrations, making it inexpensive and easy to use.
Researchers found that obese people have fewer enteroendocrine cells in the gut, reducing satiety hormones and altering appetite. Surgical weight-loss procedures can repair this disorder by restoring cell numbers and normalizing hormone release.
A study led by Columbia University Medical Center researchers found that boosting blood levels of osteocalcin reverses age-related memory loss in mice. Osteocalcin binds to a receptor called Gpr158 in the brain's memory center, and restoring youthful levels of the hormone improves cognitive function.
Researchers found that largemouth bass stressed by air exposure are less likely to be caught by angling, suggesting a potential link between cortisol levels and fishing vulnerability. The study's findings have implications for fisheries management and the selection of fish populations for recreational fishing.
A study by UC San Francisco scientists found that administering klotho to young, aging or impaired mice rapidly improves their cognitive and physical performance. The treatment also showed benefits for aged mice and those with Parkinson's disease-like symptoms, suggesting a potential therapeutic application.
New research from Northwestern University suggests that children who live in neighborhoods with high rates of violent crime struggle more in school due to sleep disruption and increased stress hormone cortisol. The study found that violent crimes alter sleep patterns, leading to a negative impact on academic performance.
A new study found that violent crime can disrupt sleep patterns and increase stress hormones in youth, leading to decreased academic performance. The study, conducted on 82 youth aged 11-18, showed that sleep and cortisol levels changed after a violent crime occurred nearby, with the largest effects seen for homicides.
A study found that hemodialysis patients with hypothyroidism exhibit impairments in health-related quality of life, including physical function and pain. The findings suggest a potential link between thyroid hormone levels and patient outcomes.
A recent study found that consuming foods high in polyunsaturated fats, such as walnuts and salmon, can favorably change appetite hormones in young adults. The study participants experienced a decrease in fasting ghrelin and an increase in peptide YY, leading to better appetite control.
Naoki Yamanaka, the first researcher at UC Riverside to receive a Pew scholarship, will pursue foundational research using state-of-the-art techniques. His research focuses on identifying chemicals that interrupt steroid hormone entry into cells, which could lead to novel means of manipulating steroid-related processes.
Scientists at Imperial College London discovered a way to target specific receptors controlling appetite in mouse brains without causing side effects. This breakthrough could lead to the development of a new type of anti-obesity medication that activates thyroid hormone receptors in the hypothalamus.
Early childhood exposure to specific phthalates was associated with depressed thyroid function in girls at age 3. Lower levels of active thyroid hormone free thyroxin (FT4) were linked to metabolites of certain phthalate chemicals.
Researchers identified VEGF-A as a key player in thyroid-vascular coordination, producing excess hormones and dense capillaries in hyperthyroidism. Blocking VEGFR2 could inhibit thyroid enlargement and remodeling.
Researchers have developed a laboratory model for Allan-Herndon-Dudley syndrome, a rare psychomotor disease that affects brain development. The study uses induced pluripotent stem cell technology to replicate the patient's blood-brain barrier, providing new insights into the disease and potential therapies.
A steroid hormone called ecdysone has been identified as a crucial trigger for brain development in fruit flies. The hormone is similar to human thyroid hormone and its activity timing may hold clues to maternal hypothyroidism, a condition that can cause severe neurological defects and fetal brain damage.
New research finds that suppressing thyroid hormone receptor activity locally in the retina protects cone photoreceptor cells, slowing cell death and prolonging their life span. The study suggests a therapeutic strategy for treating retinal degeneration using topical medications or eyedrops.
The emerging field of conservation endocrinology explores the effects of environmental change on species and ecosystems through hormone analysis. Researchers are developing new techniques to monitor ecological responses and plan future conservation efforts.
A study published in Cell Metabolism found that a liver hormone called FGF21 may play a role in determining who has a sweet tooth. The researchers discovered two variants of the FGF21 gene associated with increased intake of sweets and candies.
Researchers using endocrine markers can monitor ecological responses to climate change and plan conservation efforts. This emerging field aims to improve conservation biology by studying the impact of environmental stressors on species health.
Researchers at the University of Birmingham have discovered a new cause of high blood pressure, known as Connshing syndrome, which is characterized by the overproduction of both aldosterone and cortisol. This condition can lead to increased risk of heart attack and stroke, and may require additional treatment beyond current medications.
Researchers discovered a separate mechanism in the brain that deals only with chronic stress, involving a small group of nerve cells in the paraventricular nucleus. The CRFR1 system is thought to play a role in regulating cortisol levels and may be involved in depression, with patients having more of this receptor than average.
A new study found that higher levels of vitamin D, insulin-like growth factor-1, and dehydroepiandrosterone sulfate are associated with a lower risk of worsening frailty in men. These findings suggest that targeting these hormones may help prevent frailty development in aging men.
Research reveals that consuming cow's milk with levothyroxine supplement can lead to reduced absorption of the medication, potentially resulting in inadequate thyroid hormone levels. The study advises patients on managing hypothyroidism or taking levothyroxine to avoid consuming dairy products simultaneously.
Researchers have found that a hormone called hepcidin helps fight off bacterial pneumonia by limiting the spread of bacteria in the blood. Stimulating hepcidin production could be lifesaving for vulnerable patients, including those with iron overload or liver disease.
When parent little auks were stressed, they reduced feeding and spent more time searching for food, impacting their offspring's nutrition. Despite this, the birds still displayed a care response to their chicks' begging behaviour.
Thyroid hormones are essential for brain cell development and signalling, but impaired transporters can lead to severe mental retardation. Researchers found that a genetic mutation deactivates an important transporter, MCT8, in patients with Allan-Herndon-Dudley syndrome.
Crossing chickpeas is challenging due to self-pollination and inbreeding. Researchers found that emasculation and hormone treatment do not increase cross-pollination rates, instead lowering success rates. Studying environmental factors like light, temperature, and humidity may improve breeding efficiency.
Researchers at TSRI identified a brain hormone called FLP-7 that stimulates fat metabolism without affecting food intake. By studying roundworms and visualizing the hormone in living animals, they found a direct link between serotonin levels in the brain and FLP-7 production, which triggers fat burning in the gut.
A recent study found that kisspeptin stimulates the release of reproductive hormones and boosts brain activity linked to sexual arousal and romance. The researchers believe this may help treat psychosexual disorders and improve conception rates for infertile couples.
Researchers have turned to frog models to study the impact of early stressors on adult diseases, finding that a specific gene USH1g is highly expressed in response to stress. This study sheds light on the mechanisms behind fetal stress hormone effects on adult chronic diseases.
Researchers developed a portable sensor using engineered E. coli bacteria to detect environmentally relevant concentrations of endocrine disrupting chemicals (EDCs). The device can determine concentrations of known EDCs individually and overall mixtures in minutes, offering a cost-effective solution for detecting hormone disruptors.
A new study published in the Journal of Bone Joint Surgery has found that treatment with teriparatide accelerates bone healing and improves recovery after hip fractures. Patients who received teriparatide showed significant improvements in mobility and reduced pain compared to those treated with a different medication.
Researchers at German Resilience Center found that corticotrophs rapidly influence avoidance behavior after stress onset, contradicting previous slow effects of hormones. This breakthrough suggests new treatments for acute stress-induced reactions and alleviating conditions.
A recent study suggests that treating mild hypothyroidism in pregnant women with levothyroxine may lower the risk of low-weight babies and early caesarean sections. However, there was no significant difference in other obstetric outcomes between treated and untreated groups.
Researchers at Stockholm University have identified a hormone called corazonin that helps fruit flies counteract stress and restore their internal balance. The discovery has implications for finding environmentally friendly ways to control pest insect populations.
Researchers created a new iPS-cell model to study spinocerebellar ataxia type 6, finding that mature Purkinje cells with the SCA6 mutation become vulnerable when deprived of thyroid hormone. The team discovered compounds that can suppress this vulnerability and prevent cell death.
Research conducted by Rush University Medical Center found that patients with hypothyroidism who have normal TSH levels are more likely to take antidepressants, be less physically active, and exhibit lower energy levels. These findings indicate that persistent symptoms may not be solely in the patient's head.
A new study found an association between exposure to endocrine-disrupting chemicals (EDCs) and lower vitamin D levels in U.S. adults, with the link strongest in women. The study suggests that EDCs may alter the active form of vitamin D in the body.
A recent UBC study found that 5% of sexually active transgender youth have been pregnant, similar to the general adolescent population. This challenges common assumptions about trans youth and highlights the need for improved sex education and healthcare.
Stressed-out birds are twice as likely to be bitten by mosquitoes that transmit West Nile virus. Researchers also found stress hormones alter mosquito reproduction, potentially affecting disease cycles in nature.
Researchers found that older women produced a greater amount of peptide YY, which tells humans when they're full, than younger counterparts. This increase in PYY levels may be associated with reduced hunger and food intake in elderly people.
Patients with non-functional adrenal tumors are at increased risk of developing type 2 diabetes, a new study reveals. According to the research, even benign tumors that don't secrete hormones can increase the risk of metabolic diseases.
A University of Sydney study found that infants with moderately high thyroid stimulating hormone concentrations have a higher risk of poor educational and development outcomes. Infants with TSH levels below the screening cut-off but in the top quartile have an increased likelihood of poor neurodevelopmental outcomes at school age.
A novel gene therapeutic approach has been developed by WSU researchers to combat muscle wasting disease, which affects millions worldwide. The treatment, targeting a specific hormone, aims to prevent muscle loss and improve cancer patient survival rates.
Researchers discovered a soy-based protein called soy-ghretropin that increases blood levels of ghrelin, an appetite-stimulating hormone. The findings suggest this protein may be developed to help elderly people or anorexic patients with reduced ghrelin levels and food intake.
A study of 3,302 women transitioning through menopause found associations between VMS patterns and demographic, reproductive hormone, and psychosocial factors. Women with early onset VMS were more likely to have elevated depressive symptoms and poorer health.
A study found that paper wasps aggressively punish dishonest signals, leading to reduced hormone levels and long-term impacts on social interactions. The researchers tested how facial patterns influence behavior and hormone levels in paper wasps, revealing a complex relationship between honesty and evolutionary fitness.
Researchers discovered a lost hormone in starfish that is linked to human sexual maturity and evolution. The study found that the evolutionary history of the hormone gonadotropin-releasing hormone (GnRH) is written in the genes of the starfish, with two GnRH-like hormones found in both humans and fruit flies.
A study by Oxford researchers found that exposure to green light rapidly induces sleep, whereas blue and violet lights delay sleep. The role of melanopsin, a pigment regulating the body clock, was confirmed as essential for these effects.
Researchers found that patients with psychosis fail to produce cortisol after waking, indicating a potential biomarker for early detection. Cortisol levels may also predict risk for other chronic diseases.
A Mayo Clinic-led study discovered that obese teenagers have lower levels of the hormone spexin, which may play a role in weight gain. The study suggests that spexin could be involved in childhood obesity and potentially used to treat or manage the condition.
A new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism has found that obese teenagers have lower levels of the hormone spexin, which may contribute to weight gain and obesity. The study suggests that spexin may play a role in regulating body fat mass and energy balance.
Research from Binghamton University found that adolescent alcohol exposure can lead to a lack of hormonal stress adaptation, making adults more vulnerable to chronic stress. Adult males exposed to alcohol during adolescence showed elevated cortisol levels and impaired stress response.
Researchers found that mice with lower adiponectin levels cannot overcome fear after a scary stimulus. Increasing adiponectin levels or activating its receptors might facilitate extinction-based exposure treatments for PTSD and other trauma-related disorders.