hormone – Page 2 – Shamskm: A site to exchange knowledge and solutions

Cycling May Negatively Affect Male Reproductive Health, UCLA Study Finds

By Guest PostMay 26, 2012Health, Sportsanti microbial preservative, bacterial infection, body fat, breast tissue, cardiovascular, chamois cream, concentration, cortisol, elevated estrogen, estradiol, female athlete, gynecomastia, Health, hormonal imbalance, hormone, interleukin 6, james s kesner, kaiser foundation, leah fitzgerald, male cyclists, metabolic function, neuroendocrine system, perineum area, plasma estradiol, pubic hair, reduce, reproductive health, reproductive hormone, total testosterone, wendie a robbins

A study by researchers at the UCLA School of Nursing has found that serious male cyclists may experience hormonal imbalances that could affect their reproductive health.

The study, “Reproductive Hormones and Interleukin-6 in Serious Leisure Male Athletes,” was recently published in the European Journal of Applied Physiology.

To date, an extensive amount of research has been done documenting the positive effects of long-term exercise on health. Yet while moderate exercise can lead to enhanced cardiovascular and metabolic function and reduced body fat, studies have shown that ultra-endurance levels of exercise can also adversely affect the neuroendocrine system and reproductive health. (more…)

Plant Scientists Find Mechanism That Gives Plants ‘Balance’

By Guest PostApril 23, 2012Sciencearabidopsis, decision, defense mode, disease, gibberellins, growth mechanism, harsh weather, hormone, jasmonates, michigan state university, narrow leafed plant, phenomenon, plant, sheng yang he

EAST LANSING, Mich. — When a plant goes into defense mode in order to protect itself against harsh weather or disease, that’s good for the plant, but bad for the farmer growing the plant. Bad because when a plant acts to defend itself, it turns off its growth mechanism.

But now researchers at Michigan State University, as part of an international collaboration, have figured out how plants can make the “decision” between growth and defense, a finding that could help them strike a balance – keep safe from harm while continuing to grow. (more…)

UCLA Scientists Design Experimental Treatment for Iron-Overload Diseases

By Guest PostNovember 6, 2011Health, Scienceamino acids, bo qiao, change in iron flow in the body, cooley anemia, damage, effects of hepcidin in mice, elizabeta nemeth, emilio ramos, excess iron in the body, ferroportin, genetic disorders, gloria c preza, heart, hepcidin, hereditary hemochromatosis, hormone, iron overload, iron overload diseases, iron regulating activity, iron regulation, liver, minihepcidins, molecules, organs, piotr ruchala, therapy, tomas ganz, toxic

Iron overload is a common condition affecting millions of people worldwide. Excess iron in the body is toxic, and deposits can cause damage to the liver, heart and other organs. Current treatments, researchers say, are not ideal and have significant side effects.

Iron in the body is regulated by a hormone called hepcidin, and a deficiency in this hormone can cause the iron overload seen in genetic disorders like hereditary hemochromatosis and Cooley’s anemia. (more…)

UCLA Psychologists Discover a Gene’s Link to Optimism, Self-Esteem

By Guest PostSeptember 15, 2011Health, Scienceadenine variant, baldwin way, depressive symptoms, empathy, gene link to optimism, good social skills, guanine variant, hormone, oxtr, oxytocin, oxytocin receptor gene, psychological disorders, shelley e taylor, shimon saphire bernstein, stress and depression

UCLA life scientists have identified for the first time a particular gene’s link to optimism, self-esteem and “mastery,” the belief that one has control over one’s own life — three critical psychological resources for coping well with stress and depression.

“I have been looking for this gene for a few years, and it is not the gene I expected,” said Shelley E. Taylor, a distinguished professor of psychology at UCLA and senior author of the new research. “I knew there had to be a gene for these psychological resources.” (more…)

A Change in Perspective Could Be All It Takes to Succeed in School

By Guest PostAugust 13, 2011Scienceadrenal gland, choking under pressure, free press, hormone, marci decaro, math anxiety and salivary cortisol, neil albert, psychology, right way to handle stress, robin thomas, sian beilock, stress hormone, stress related changes in the body, university of chicago, working memory

*Study finds stress boosts performance for confident students, but holds back those with more anxiety*

Knowing the right way to handle stress in the classroom and on the sports field can make the difference between success and failure for the millions of students going back to school this fall, new University of Chicago research shows.

“We found that cortisol, a hormone released in response to stress, can either be tied to a student’s poor performance on a math test or contribute to success, depending on the frame of mind of the student going into the test,” said Sian Beilock, associate professor in psychology and one of the nation’s leading experts on poor performance by otherwise talented people. (more…)

New Study Suggests Link Between Estrogen, Blood Pressure

By Guest PostMay 28, 2011Healthanti oxidant resveratrol, blood pressure, brain, carrie northcutt, chronic exposure, effects of menopause, estrogen only hrt, hannah garver, heart failure, high blood pressure, hormone, huawei zhao, hypertension, joseph haywood, long term exposure to estrogen, madhan subramanian, michigan state university, mohankumar, p s mohankumar, priya balasubramanian, rostral ventrolateral medulla, stress in the body, superoxide, women

EAST LANSING, Mich. — While recent studies have shown long-term exposure to estrogen can be a danger to women – overturning physicians’ long-held beliefs that the hormone was good for their patients’ hearts – the process by which estrogen induces high blood pressure was unclear.

In a new study, Michigan State University researchers found long-term estrogen exposure generates excessive levels of the compound superoxide, which causes stress in the body. The buildup of this compound occurs in an area of the brain that is crucial to regulating blood pressure, suggesting that the estrogen-induced buildup causes increased blood pressure. (more…)

Researchers Discover How Progesterone May Increase Breast Cancer Risk

By Guest PostJanuary 19, 2011Health, Scienceanastasia kariagina, breast cancer, cell growth, epidermal growth factor, estrogen, hormone, hormone dependent, hormone replacement therapy, human breast, mammary cancers, mammary cells, phenomenon, postmenopausal women, progesterone, progestin, protein amphiregulin, risk of breast cancer, sandra haslam, tumor growth

EAST LANSING, Mich. — Researchers have identified how the hormones progesterone and estrogen interact to increase cell growth in normal mammary cells and mammary cancers, a novel finding that may explain why postmenopausal women receiving hormone replacement therapy with estrogen plus progestin are at increased risk of breast cancer.

The discovery that both estrogen and progesterone must be present for the increased production of the protein amphiregulin, which binds to mammary cells and promotes cell growth, could lead to new treatment methods for the disease, said Sandra Haslam, director of Michigan State University’s Breast Cancer and the Environment Research Center and lead researcher on the project. (more…)

Tag Archives: hormone