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News in Science

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  • Haykakan
    replied
    Re: News in Science

    MONDAY, July 2 (HealthDay News) -- Yet another report points to the possible health benefits of caffeine, whether it comes in coffee, tea, cola or even chocolate.

    A study published July 1 in the journal Cancer Research suggests that drinking caffeinated coffee could lower the chances of developing basal cell carcinoma, the most common form of skin cancer. The study also found that caffeinated tea, cola and chocolate also appears to reduce risk.

    Women in the study who drank more than three cups of caffeinated coffee per day were 21 percent less likely to develop the disease than women who drank less than one cup per month. Among men, the risk reduction was 10 percent.

    "It's the caffeine that's most likely responsible for the beneficial effect," said study co-author Jiali Han, an associate professor at Brigham and Women's Hospital and Harvard Medical School, in Boston. "Caffeine inhibits tumor progression. We saw the effect in mice and thought we should do this research to see if it applies to humans, too."

    Han said that it's likely that the more you drink, the lower the risk of basal cell cancer. But he's cautious about recommending coffee for everyone. "I'm not going to say we need to promote coffee based on this research, but this is just one more addition to the list of ways coffee has been associated with positive health benefits," he said.

    The new research adds to a range of recent studies that have shown that coffee may protect against some illnesses, including type 2 diabetes, heart failure, Parkinson's disease, liver cancer and cirrhosis of the liver, and that it might improve exercise performance.

    Basal cell skin cancer begins in the outer layer of skin and is usually found on areas of the body exposed to the sun. According to the U.S. National Cancer Institute, about 2 million people a year are treated for basal cell carcinoma, which rarely spreads to other parts of the body.

    The researchers found caffeine intake did not reduce the risk of squamous cell carcinoma or melanoma, other forms of skin cancer.

    The authors analyzed more than 20 years of data from the Nurses' Health Study, a large and long-running study designed to track women's health, and the Health Professionals Follow-up Study, a similar project that involved men. More than 112,000 people were included in the analysis.

    While the study uncovered an association between greater caffeine consumption and reduced risk of basal cell cancer, it did not prove a cause-and-effect relationship.

    Some experts urged caution about the new study. Rob van Dam, an associate professor in the Saw Swee Hock School of Public Health at National University of Singapore, said that while the study is exciting, the contrast in risk between coffee drinkers and non-drinkers was relatively small.

    Van Dam said the potential benefit from caffeine may not be as valuable as other known prevention strategies. "We have very obvious ways to decrease your risk of basal cell carcinoma, methods that have been proven to be effective," he said.

    Dr. Albert Lefkovits, an associate clinical professor of dermatology at Mount Sinai School of Medicine in New York City, noted that coffee can vary greatly in its caffeine content, depending on the size of the cup and the strength of the brew. He said he also hasn't seen a correlation between coffee drinking and reduced risk of skin cancer in his practice. "I have many patients with multiple basal cell cancer lesions who drink a lot of coffee," he noted.

    Lefkovits doesn't want people to think coffee is the new sunscreen. "If you want to drink coffee, go ahead," he said. "But it doesn't permit you to neglect using a complete sun protection regimen that includes seeking shade, covering up with sun-protective clothing, including wide-brimmed hats and UV-blocking sunglasses, and wearing broad spectrum sunscreen every day."

    Leave a comment:


  • Haykakan
    replied
    Re: News in Science

    New drug for advanced prostate cancer

    Leave a comment:


  • Haykakan
    replied
    Re: News in Science

    US RESEARCHERS EXAMINE ARMENIANS' DNA

    news.am
    April 02, 2012 | 15:21

    The researchers from the University of California examined DNA
    of Armenians who survived the 1988 earthquake to find out that
    post-traumatic stress disorder (PTSD) can be partially determined by
    gene variants.

    The scientists found out that people having TPH1 and TPH2 gene variants
    are likely to have more symptoms of post-traumatic stress disorder,
    BBC reports.

    Two gene variants reduce production of serotonin which affects
    people's behavior and mood. Thus, it contributed to development of
    PTSD symptoms.

    The study was conducted by a group of researches led by Dr Armen
    Goenjian among 200 members of 12 Armenian families.

    Leave a comment:


  • Haykakan
    replied
    Re: News in Science

    'Shocking' Report Warns Of Mass Extinction From Current Rate Of Marine Distress

    First Posted: 06/20/11 05:19 PM ET Updated: 06/21/11 09:09 AM ET

    React Inspiring
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    Follow Climate Change , Our Oceans , Science , IPSO 2011 Report , IPSO Report , Marine Extinction , Mass Extinction , Ocean Extinction , State Of Oceans , State Of The Oceans , State Of The Oceans 2011 , State Of The Oceans 2011 Report , Green News
    share this story
    7,4971,2881,4844,348Get Green Alerts
    Sign Up
    Submit this storydigg reddit stumble If the current actions contributing to a multifaceted degradation of the world's oceans aren't curbed, a mass extinction unlike anything human history has ever seen is coming, an expert panel of scientists warns in an alarming new report.

    The preliminary report from the International Programme on the State of the Ocean (IPSO) is the result of the first-ever interdisciplinary international workshop examining the combined impact of all of the stressors currently affecting the oceans, including pollution, warming, acidification, overfishing and hypoxia.

    “The findings are shocking," Dr. Alex Rogers, IPSO's scientific director, said in a statement released by the group. "This is a very serious situation demanding unequivocal action at every level. We are looking at consequences for humankind that will impact in our lifetime, and worse, our children's and generations beyond that."

    The scientific panel concluded that degeneration in the oceans is happening much faster than has been predicted, and that the combination of factors currently distressing the marine environment is contributing to the precise conditions that have been associated with all major extinctions in the Earth's history.

    According to the report, three major factors have been present in the handful of mass extinctions that have occurred in the past: an increase of both hypoxia (low oxygen) and anoxia (lack of oxygen that creates "dead zones") in the oceans, warming and acidification. The panel warns that the combination of these factors will inevitably cause a mass marine extinction if swift action isn't taken to improve conditions.

    The report is the latest of several published in recent months examining the dire conditions of the oceans. A recent World Resources Institute report suggests that all coral reefs could be gone by 2050 if no action is taken to protect them, while a study published earlier this year in BioScience declares oysters as "functionally extinct", their populations decimated by over-harvesting and disease. Just last week scientists forecasted that this year's Gulf "dead zone" will be the largest in history due to increased runoff from the Mississippi River dragging in high levels of nitrates and phosphates from fertilizers.

    A recent study in the journal Nature, meanwhile, suggests that not only will the next mass extinction be man-made, but that it could already be underway. Unless humans make significant changes to their behavior, that is.

    Story continues below
    Advertisement

    AdvertisementThe IPSO report calls for such changes, recommending actions in key areas: immediate reduction of CO2 emissions, coordinated efforts to restore marine ecosystems, and universal implementation of the precautionary principle so "activities proceed only if they are shown not to harm the ocean singly or in combination with other activities." The panel also calls for the UN to swiftly introduce an "effective governance of the High Seas."

    "The challenges for the future of the ocean are vast, but unlike previous generations we know what now needs to happen," Dan Laffoley of the International Union for Conservation of Nature and Natural Resources (IUCN) and co-author of the report said in a press release for the new report. "The time to protect the blue heart of our planet is now, today and urgent."

    Leave a comment:


  • Haykakan
    replied
    Re: News in Science

    I wish Armenia had the resources to do this
    Get breaking news and the latest headlines on business, entertainment, politics, world news, tech, sports, videos and much more from AOL

    Leave a comment:


  • Haykakan
    replied
    Re: News in Science

    Surprising Effect of Sex on the Brain
    Print
    -- From the Editors at Netscape

    Sex makes the brain grow. At least, it works that way in rats.

    When we experience stress or anxiety, it can stifle brain growth, previous research has shown. So does the opposite hold true? Would pleasant experiences help brain cells to grow? Princeton University researchers wanted to know, so they studied the effect of sex on laboratory rats.

    The study: LiveScience.com reports that the researchers gave adult male rats access to sexually-receptive females either once a day for two weeks or just one time in two weeks. In addition, they measured the blood levels of each rat for stress hormones called glucocorticoids, which the Princeton team thinks cause the detrimental effects that unpleasant or stressful experiences have on the brain.

    The results:

    • When compared with male rats that had never had sex, both groups of sexually active rats had cell proliferation, or an increase in the number of neurons, in the hippocampus. Cells in the hippocampus, which is a part of the brain linked with memory, are especially sensitive to unpleasant experiences.

    • For the rats that had daily sex, not only did adult brain cells grow, but also there was an increase in the number of connections between brain cells.

    • The rodents that had sex just once in a two-week period had elevated levels of stress hormones, while the rats that had daily sex did not experience this.

    • The sexually active rats were less anxious than the virgin rats, which was measured by the fact they were quicker to eat food in an unfamiliar place.

    The takeaway: While stressful situations can be detrimental to the brain, these effects can be overridden if the experiences that triggered them were pleasant.

    The study findings were published in the journal PLoS ONE.

    Leave a comment:


  • Haykakan
    replied
    Re: News in Science

    LiveScience Staff

    LiveScience.com livescience Staff

    livescience.com – Fri Aug 6, 5:25 pm ET
    Our personalities stay pretty much the same throughout our lives, from our early childhood years to after we're over the hill, according to a new study.

    The results show personality traits observed in children as young as first graders are a strong predictor of adult behavior.

    "We remain recognizably the same person," said study author Christopher Nave, a doctoral candidate at the University of California, Riverside. "This speaks to the importance of understanding personality because it does follow us wherever we go across time and contexts."

    The study will be published in an upcoming issue of the journal Social Psychological and Personality Science.

    Tracking personalities

    Using data from a 1960s study of approximately 2,400 ethnically diverse schoolchildren (grades 1 - 6) in Hawaii, researchers compared teacher personality ratings of the students with videotaped interviews of 144 of those individuals 40 years later.

    They examined four personality attributes - talkativeness (called verbal fluency), adaptability (cope well with new situations), impulsiveness and self-minimizing behavior (essentially being humble to the point of minimizing one's importance).

    Among the findings:

    Talkative youngsters tended to show interest in intellectual matters, speak fluently, try to control situations, and exhibit a high degree of intelligence as adults. Children who rated low in verbal fluency were observed as adults to seek advice, give up when faced with obstacles, and exhibit an awkward interpersonal style.

    Children rated as highly adaptable tended, as middle-age adults, to behave cheerfully, speak fluently and show interest in intellectual matters. Those who rated low in adaptability as children were observed as adults to say negative things about themselves, seek advice and exhibit an awkward interpersonal style.

    Students rated as impulsive were inclined to speak loudly, display a wide range of interests and be talkative as adults. Less impulsive kids tended to be fearful or timid, kept others at a distance and expressed insecurity as adults.

    Children characterized as self-minimizing were likely to express guilt, seek reassurance, say negative things about themselves and express insecurity as adults. Those who were ranked low on a self-minimizing scale tended to speak loudly, show interest in intellectual matters and exhibit condescending behavior as adults.

    Changing personality

    Previous research has suggested that while our personalities can change, it's not an easy undertaking.

    Personality is "a part of us, a part of our biology," Nave said. "Life events still influence our behaviors, yet we must acknowledge the power of personality in understanding future behavior as well."

    Future research will "help us understand how personality is related to behavior as well as examine the extent to which we may be able to change our personality," Nave said.


    Top 10 Controversial Psychiatric Disorders
    10 Things You Didn't Know About the Brain
    Personality Predicted by Size of Different Brain Regions


    Original Story: Personality Set for Life By 1st Grade, Study Suggests
    LiveScience.com chronicles the daily advances and innovations made in science and technology. We take on the misconceptions that often pop up around scientific discoveries and deliver short, provocative explanations with a certain wit and style. Check out our science videos, Trivia & Quizzes and Top 10s. Join our community to debate hot-button issues like stem cells, climate change and evolution. You can also sign up for free newsletters, register for RSS feeds and get cool gadgets at the LiveScience Store

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  • KanadaHye
    replied
    Re: News in Science

    Originally posted by ara87 View Post
    that's one of the biggest quack treatments of all time
    Effective treatments take centuries to develop. If you take a look at the money being made by anti viral treatments of the AIDS virus which will never lead to a cure, nor do the drug companies wish to find a cure, flushing out your blood with iodine doesn't seem like such a bad idea.

    Leave a comment:


  • ara87
    replied
    Re: News in Science

    Originally posted by Haykakan View Post
    Armenicum
    that's one of the biggest quack treatments of all time

    Leave a comment:


  • Haykakan
    replied
    Re: News in Science

    STEM CELLS FOR A TRANSPLANT: AN IRANIAN-ARMENIAN SAVES A BELGIAN LIFE
    Karine Ionesyan

    ArmeniaNow reporter
    Health | 18.06.10 | 12:25

    A center in Yerevan that opened recently as part of a larger donor
    registry to harvest stem cells for transplants has registered its
    first success this week as its collection has proved life-saving for
    a patient in Europe.

    The stem cells of Frederic Safarian, an Iranian-Armenian, matched
    with those of a non-Armenian woman living in Belgium and suffering
    from a grave blood-related illness. The transplant was successfully
    performed on Thursday night in Belgium.

    The Stem Cell Harvesting Center in Yerevan is the only such
    establishment that is available in the territory of the former Soviet
    Union. It is part of the Armenian Bone Marrow Donor Registry (ABMDR),
    which was established in 1999 for recruiting and providing matched
    unrelated donors for bone marrow or stem cell transplantation to all
    Armenian and non-Armenian patients who are suffering from leukemia
    and other blood related illnesses.

    About 16,000 donors have been registered with ABMDR so far. A total of
    821 matches have been found for 1,276 applications from patients during
    these years. This week has marked the tenth successful transplant
    assisted by the charitable organization, but the first stem-cell
    successfully matched.

    Doctor Mihran Nazaretyan, who works as part of this project, says
    that such successes not only save human lives, but may also hold out
    broad prospects for the future of Armenian medicine.

    "We want not only to provide donors, but also create a transplant
    center in Armenia, which, naturally, will cost hundreds of thousands
    of dollars, but we consider that 70 percent of work to achieve this
    goal has already been done," Nazaretyan told ArmeniaNow.

    Leave a comment:

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