Tag: "hormones" at medical news

Options improving for patients with acromegaly and gigantism, says endocrinology expert

...During this time the children get bigger and their hormones get higher and the tissue damage gets worse. Therefore, the earlier we can diagnose and treat the disease, the more effectively we can control the negative implications." Acromegaly develops when somatotrophs, cells of the pituitary gland that are r...

Mechanism of black cohosh versus hot flashes revealed

...tive neuroendocrinology, such as the levels of sex hormones and neurotransmitters that are important for temperature regulation." Black cohosh (known as both Actaea racemosa and Cimicifuga racemosa) is a member of the buttercup family. A perennial plant, it is native to North America. It has been used by N...

10 outstanding scientists chosen as First Environmental Health Science Fellows

...rogenic actions, both the role of natural estrogen hormones in development, reproduction, and disease as well as effects of synthetic estrogenic chemicals, such as bisphenol A and diethylstilbestrol, on human and animal development. Ed Orlando, Assistant Professor, Florida Atlantic University, uses endocri...

Texas researchers aim to use saliva to diagnose health and disease

...lth (NIH). Salivawith its slimy mix of proteins, hormones and antibodiescan tell a lot about a person's health, and it is much easier and less painful to collect than blood. But, the medical community lacks the technologies to perform large-scale salivary diagnostics. With collaborators at three medical s...

Updated guidelines advise focusing on women's lifetime heart risk

...event heart disease including the role of aspirin, hormones and dietary supplements. "The new guidelines rei...T), or one of each (CT). Estrogens are important hormones that take action when they come in contact with estrogen receptors on the body's cells. They influe...

Strenuous physical activity associated with lower breast cancer risk

...f breast cancer by hormone receptor type, or which hormones can bind to proteins on the surface of the tumor. Strenuous activity appeared to be associated with a lower risk of estrogen-receptornegative but not estrogen-receptorpositive breast cancers. "In summary, these results provide additional evidence ...

The influence of the menstrual cycle on the female brain

...paminergic3 system is sensitive to gonadal steroid hormones (estrogen, progesterone). For example, female rats...nistered to them. The influence of gonadal steroid hormones on the activation of the reward system remained to be studied in humans. A better knowledge of this ...

Steroid use fails to boost pregnancy rates in infertility treatments

...ccording to a new review of studies. The steroid hormones called glucocorticoids have potent effects on the bodys inflammatory and immune responses, so many fertility specialists prescribe them in hopes of making the lining of the uterus more receptive to embryo implantation. But lead review author Carolien...

Severe PTSD damages children's brains, Stanford/Packard study shows

...culate that cognitive deficits arising from stress hormones interfere with psychiatric therapy and prolong sym...tisol levels. Cortisol belongs to a class of human hormones known as glucocorticoids that have been shown to kill hippocampal cells in animals. In a vicious cyc...

Obesity and environmental chemicals -- New research probes potential link

...xposure to PBDEs, which mimic estrogen and thyroid hormones in the body, make cells more likely to develop into fat cells? "Everything I do has to do with how changes in signaling result in changes in gene expression," she says. Careys work is at the cellular level. Isolating the fat tissue of these animal...

Your brain and hormones may conspire to make you fat

... Physiologists are unraveling the role that your hormones and brain play in urging you to eat more than you should. Some peoples hormones may be signaling their brains to send messages like Eat a lot now, and Go for the fat and sugar. F...

Topical testosterone cream does not increase sexual drive in female cancer survivors

...sfunction among women in general, focusing only on hormones might be oversimplifying the issue. "Although ovarian hormones play an important role in the maintenance of sexual health in women, a large body of evolving inform...

Cause of gender differences in blood pressure, kidney damage under study

...eeting Annual Meeting in Washington, D.C. Female hormones can't account for all the difference, she says. "It's not that easy. Men and women are more than just sex hormones." When she takes testicles out, for example, blood pressure and injury incidence drop some; when she takes ovaries out, blood pressure...

Estrogen is important for bone health in men as well as women

...ensity. Conversely, men with lower levels of these hormones tended to have lower bone density. Testosterone levels did not affect bone density in these study subjects. Testosterone seems to be responsible for the larger size and thicker outer layers of male bones, but estrogen is possibly a key hormone for ...

Study offers clues to 'Broken Heart Syndrome'

...diomyopathy," Dr. Regnante said. A surge of stress hormones likely plays a role, he said, but it is also possible that a blood clot temporarily blocks a major artery of the heart, then dissolves before being detected during coronary angiography. The most common symptom of broken heart syndrome was chest pai...

Weill Cornell researchers use 'Virtual Iraq' simulation to study post-traumatic stress disorder

...re to aversive events evokes the release of stress hormones and neurotransmitters that, in animal models, have been shown to facilitate the learning of highly persistent conditioned fear associations and responses. The study includes a diagnostic assessment of PTSD and other mental health problems, and vete...

AGA Institute takes leadership role in exploring obesity and its complications

...ondon and colleagues review the role played by gut hormones in appetite and weight by regulating when and how much individuals eat for every meal. Obesity, Inflammation and Insulin Resistance - Steven E. Shoelson, MD, PhD, Joslin Diabetes Center and Harvard Medical School and colleagues discuss the potential ...

Aspirin use during pregnancy could reduce risk of pre-eclampsia

...elets and clotting system and an imbalance between hormones which promote and slow blood flow. Antiplatelet agents such as aspirin are thought to prevent pre-eclampsia by redressing this balance. The authors conclude: "Our data show that antiplatelet agents produce moderate but consistent reductions in pre-...

UCLA imaging study reveals how pure oxygen harms the brain

...thalamus overreacted by dumping a massive flood of hormones and neurotransmitters into the bloodstream. These chemicals interfere with the heart's ability to pump blood and deliver oxygen the opposite effect you want when you're trying to resuscitate someone." When the children inhaled the carbon dioxide-...

Novel treatments may help alleviate constipation, IBS in women

...t called guanylate cyclase-C (GC-C). Specific gut hormones utilize GC-C to regulate intestinal fluid secretion. Linaclotide is unique in that it exerts its effect locally in the intestine while having minimal systemic exposure. Thirty-six women suffering from IBS with constipation (IBS-C) were examined ...

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(Date:4/17/2014)... . Our eyes ... us with a continuous stream of information about our own ... in a car the world glides by us and ... effort, our brain calculates self-motion from this "optic flow". This ... gaze during our own movements. Together with biologists from the ...
(Date:4/17/2014)... years ago, Katia Silvera , a postdoctoral scholar at ... a field trip in a mountainous area in central Panama ... before. , Unable to identify it, they contacted German Carnevali, ... to be an unnamed species. So Carnevali recently named it ... the genus name, comprising about 40 species in the world. ...
(Date:4/17/2014)... in Europe, Asia and the United States are spreading ... impacting native honeybee populations at this time, according to ... including Nosema microsporidia and Varroa ... to these invasive pests, which suggests to us that ... and the United States currently are not necessary in ...
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