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Patient Care Guideline Released By Society For Vascular Nursing
The Society for Vascular Nursing (SVN) has released the first in a series of guidelines being developed that will focus on the nursing care of patients with vascular disease. Working as a collective group of experts, members of SVN have developed guidelines based on the latest available evidence supporting patient care, 2009 Clinical Practice Guideline for Patients Undergoing Endovascular Repair of Abdominal Aortic Aneurysms (AAA), which appears in the June issue of the Journal of Vascular Nursing published by Elsevier.
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K-State Researchers Say After-School Programs Should Promote Activity, Healthy Nutrition
Children"s after-school activities often consist of sedentary behavior such as watching television, but after-school programs that offer physical activity and healthy snacks could be the best place for children"s health.
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Singer Elton John Calls For Increased HIV/AIDS Education, Care
Singer Elton John on Tuesday at the 2009 Bio International Convention in Atlanta called for renewed efforts to fight HIV/AIDS, the Atlanta Journal-Constitution reports. John, founder of the Elton John AIDS Foundation, addressed an audience that included CEOs of organizations working to develop HIV/AIDS therapies and vaccines. He called on governments and institutions to increase their focus on education, especially among young people; access to medical treatment; and needle-exchange programs (Poole, Atlanta Journal-Constitution, 5/19)."There are long-standing stereotypes and prejudices that inhibit our efforts to combat AIDS," John said, adding, "I am asking for your leadership." According to John, CDC estimates that one in every three new HIV cases occurs among people younger than age 30, a statistic that he said has not received adequate attention. "It is unfathomable and unconscionable that we are not making a bigger effort to educate this demographic about HIV/AIDS with creative materials and up-to-date information," John said, adding, "Our failure to do so is costing lives" (Turner, AP/PennLive.com, 5/19). John also noted a recent report by the Kaiser Family Foundation, which found that the number of Americans who believe HIV/AIDS is an urgent health problem has declined to 6% currently from 44% in 1995. Bob McNally, CEO of GeoVax Labs, said John"s message is that "just not enough is being done" and that "people continue to die from the disease." He added that John "spurred the audience towards being advocates" (Atlanta Journal-Constitution, 5/20).
Oncology

'Shock And Kill' Research Gives New Hope For HIV 1 Eradication

Latent HIV genes can be "smoked out" of human cells. The so-called "shock and kill" technique, described in a preclinical study in BioMed Central"s open access journal Retrovirology, might represent a new milestone along the way to the discovery of a cure for HIV/AIDS. Dr. Enrico Garaci, president of the Istituto Superiore di Sanitç  (the Italian Institute of Health) and Dr. Andrea Savarino, a retrovirologist working at the institution, worked with a team of researchers to study the so-called "barrier of latency" which has been the main obstacle to HIV eradication from the body. Cells harbouring a quiescent HIV genome are responsible for HIV persistence during therapy. In other words, HIV-1 genes become pieces of the human organism, and many scientists have simply thought there is nothing we can do. Dr Savarino"s team aimed to "smoke out" the virus in order to render the latently infected cells targetable by the immune system or artificial means. They write, "This can be achieved using inhibitors of histone deacetylases (HDACs), which are a class of enzymes that maintain HIV latency. However, their effects on HIV are evident only when used in toxic quantities". To overcome this problem, the Italian researchers tested a collection of HDAC inhibitors, some of which specifically target only certain enzyme isoforms (class I HDACs) that are involved in HIV latency. The toxicity of this approach, however, was not markedly decreased, although it compromises a more limited number of cellular pathways. Moreover, at non-toxic quantities, class I HDAC inhibitors were able to induce the "awakening" of a portion of cells within a latently infected cell population. The researchers then repeated the experiment adding a drug inducing oxidative stress, buthionine sulfoximine (BSO). The results showed that BSO recruited cells non-responsive to the HDAC inhibitors into the responding cell population. An important result was that the infected cells" "awakening" was followed by cell death, whereas the non-infected cells were left intact by the drug combination. "I really hope this study may open new avenues to the development of weapons able to eliminate the HIV-infected cells from the body", says Dr. Andrea Savarino, "Such weapons, in combination with antiretroviral therapies, could hopefully allow people living with HIV/AIDS to get rid of the virus and return to a normal life. Of note, there are testable drug combinations composed of molecules that have passed phase I clinical trials for safety in humans". This type of approach has been dubbed "shock and kill". "Although this type of approach is largely accepted by the scientific community", adds Dr. Savarino, "to be honest, we have to take into consideration that some scientists are skeptical about this approach, and others even think that a cure for HIV/AIDS will never be found. Experiments using animal models will shed a new light on this difficult problem." BioMed Central Limited


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