Categories
Cardiovascular
Diagnostics
Endocrinology
Health Insurance
Medical Devices
Mental Health
Nutrition
Oncology
Public Health
Sexual Health
Popular Articles
Natural Remedies

Important Therapeutic Target For Breast Cancer: Newly Appreciated Membrane Estrogen Receptor
New research at Rhode Island Hospital has uncovered the biological effects of a novel membrane estrogen receptor, a finding that has potential implications for hormonal therapy for breast cancer. The study is published in the July edition of the journal Molecular Endocrinology. This new study by Edward Filardo, MD, and his research team further supports earlier published work by the group that linked the transmembrane receptor, GPR30/GPER-1, to specific estrogen binding, rapid estrogen signaling and breast cancer metastasis. "What is exciting about this new work," says Filardo, "is that it provides some insight into the influence of GPR30 at the cellular level. It shows that estrogen action through GPR30 allows for breast tumor cell survival, and not breast tumor cell proliferation." Prior studies by Filardo"s group showed that estrogen acts through GPR30 to promote the rapid release of preformed growth factors that are tethered to the surface of breast cancer cells. Their latest study was conducted in an effort to better understand the mechanism by which GPR30 triggered the release of epidermal growth factor (EGF) polypeptides from the surface of breast cancer cells.
generic viagra online
Number Of Abortion Procedures Continues To Decline In Minnesota And Wisconsin
The following summarizes news coverage of state abortion statistics in Minnesota and Wisconsin.~ Minnesota: The number of abortions performed in Minnesota decreased for the second consecutive year in 2008, according to an annual report from the state Department of Health, the Minneapolis Star Tribune reports. Except for a one-time increase in 2006, the number of abortions in Minnesota has trended downward since a peak in 1980, when 19,028 procedures were performed. The new report found that 12,948 abortions were performed in the state in 2008, a decrease of 895 from 2007. Women ages 20 to 24 accounted for about one-third of the procedures, the most among any age group. The number of procedures among teenagers continued a decline that began in the 1990s but had leveled off slightly earlier this decade, the report found. The report also found that less than one-third of women reported using contraception and about one in seven was married at the time of conception (Von Sternberg, Minneapolis Star Tribune, 7/1).~ Wisconsin: Wisconsin abortion providers performed 8,229 procedures in 2008, the lowest number since the state began collecting statistics in 1974, according to an annual report by the state Department of Health Services, the AP/Milwaukee Journal-Sentinel reports. The number of abortions has declined annually since 2003, when 10,557 procedures were performed. State law requires abortion providers to provide DHS with the data. According to the report, slightly more than half of abortions took place in the first eight weeks of pregnancy. Women who had never been married accounted for about three-fourths of all procedures. The report found that 12% of abortions occurred among women ages 35 and older; 34% were among women ages 20 to 24; 11% were among women ages 18 and 19; and 6% were among girls ages 15 to 17. The number of abortions among minors decreased from 551 in 2007 to 500 in 2008, with parents providing consent in 452 of those cases (Richmond, AP/Milwaukee Journal-Sentinel, 6/30).
News of the day
Skills For Catheter Insertion Improved By Simulation Training
New technology allows student doctors to practice operations and other procedures on simulators before trying them out on real patients, just as pilots practice for emergencies on aircraft simulators. Medical educators feel that this will increase patient safety, by avoiding first-time mistakes being made on live patients. But does education by simulation actually work? Can doctors learn new skills on simulators instead of on humans?
Oncology

Creative Problem Solving Enhanced By REM Sleep

Research led by a leading expert on the positive benefits of napping at the University of California, San Diego School of Medicine suggests that Rapid Eye Movement (REM) sleep enhances creative problem-solving. The findings may have important implications for how sleep, specifically REM sleep, fosters the formation of associative networks in the brain. The study by Sara Mednick, PhD, assistant professor of psychiatry at UC San Diego and the VA San Diego Healthcare System, and first author Denise Cai, graduate student in the UC San Diego Department of Psychology, shows that REM directly enhances creative processing more than any other sleep or wake state. Their findings were published in the June 8th online edition of the Proceedings of the National Academy of Sciences (PNAS). "We found that - for creative problems that you"ve already been working on - the passage of time is enough to find solutions," said Mednick. "However, for new problems, only REM sleep enhances creativity." Mednick added that it appears REM sleep helps achieve such solutions by stimulating associative networks, allowing the brain to make new and useful associations between unrelated ideas. Importantly, the study showed that these improvements are not due to selective memory enhancements. A critical issue in sleep and cognition is whether improvements in behavioral performance are the result of sleep-specific enhancement or simply reduction of interference - since experiences while awake have been shown to interfere with memory consolidation. The researchers controlled for such interference effects by comparing sleep periods to quiet rest periods without any verbal input. While evidence for the role of sleep in creative problem-solving has been looked at by prior research, underlying mechanisms such as different stages of sleep had not been explored. Using a creativity task called a Remote Associates Test (RAT), study participants were shown multiple groups of three words (for example: cookie, heart, sixteen) and asked to find a fourth word that can be associated to all three words (sweet, in this instance). Participants were tested in the morning, and again in the afternoon, after either a nap with REM sleep, one without REM or a quiet rest period. The researchers manipulated various conditions of prior exposure to elements of the creative problem, and controlled for memory. "Participants grouped by REM sleep, non-REM sleep and quiet rest were indistinguishable on measures of memory," said Cai. "Although the quiet rest and non-REM sleep groups received the same prior exposure to the task, they displayed no improvement on the RAT test. Strikingly, however, the REM sleep group improved by almost 40 percent over their morning performances." The authors hypothesize that the formation of associative networks from previously unassociated information in the brain, leading to creative problem-solving, is facilitated by changes to neurotransmitter systems during REM sleep. Additional contributors to the study include Sarnoff A. Mednick, University of Southern California, Department of Psychology; Elizabeth M. Harrison, UCSD Department of Psychology; and Jennifer Kanady, UCSD Department of Psychiatry and Veterans Affairs San Diego Healthcare System, Research Service. Funding was provided by the National Institutes of Health. Debra Kain University of California - San Diego


Add your comment:
Name:
Site address: http://
Your message:
Enter today\\\\'s date, 2 digits
(spam protection):

© Copyright 2009