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Nanoparticles tackle cancer with heat and ‘suicide genes’

Posted: Published on August 16th, 2014

Gene therapy can offer an effective treatment for drug-resistant radio-insensitive cancer. However, progress has been hampered by the difficulties in developing an appropriate delivery mechanism. Now researchers have demonstrated for the first time that magnetic nanoparticles provide safe, effective and targeted "suicide-gene" delivery to cells of a particularly prevalent and highly resilient type of liver cancer. Because the nanoparticles are magnetic they can also be used for hyperthermia treatments, where magnetic energy is converted into heat to elevate the temperature of the surrounding cancerous tissue, increasing the overall therapeutic effect of the gene therapy. "Our in vivo and in vitro experiments showed that the gene therapy combined with the heating treatment was very effective," explains Chenyan Yuan, a researcher from Southeast University in China. "In mice, we saw that the tumour growth rate, volume and mass were significantly less in the combined treatment group compared to gene therapy and hyperthermia therapy alone." Yuan and colleagues from the Affiliated Zhong Da Hospital of Southeast University and Jiangsu Key Laboratory for Biomaterials and Devices in China equipped the magnetic nanoparticles with a tumour-specific promoter gene to specifically tackle hepatocellular carcinoma, which is the most common form of liver cancer and causes more … Continue reading

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Researchers target rapid destruction of protein responsible for cancer cell resistance to therapy

Posted: Published on August 16th, 2014

Dartmouth cancer researchers at Norris Cotton Cancer Center found a means of causing the elimination of a protein that maintains cancer cell viability; the results of the study appear in the August 8 issue of The Journal of Biological Chemistry. "These findings may lead to a new target for chemoresistant cancer cells," said Ruth W. Craig, PhD, professor of Pharmacology & Toxicology, Geisel School of Medicine at Dartmouth, Hanover, NH, who is primary author of the peer reviewed article. "These cells are resistant to multiple types of standard chemotherapeutic agents because of over-expression of Myeloid Cell Leukemia-1 (Mcl-1), however, Mcl-1 expression plummets when we inhibit one particular enzyme and then cancer cells subsequently die." The Mcl-1 protein is frequently over-expressed in cancer; it is present not only in leukemia and lymphoma but also in a host of solid tumors. While Mcl-1 is expressed in a highly-controlled fashion in normal cells, its over-expression and lack of destruction maintains the viability of cancer cells and renders them resistant to chemotherapy. When high levels of this protein are maintained, the patient's cancer cells survive multiple types of drug treatment. The research found that an enzyme that removes phosphate groups from Mcl-1 is critical … Continue reading

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Understanding parallels of human and animal parenting can benefit generations to come

Posted: Published on August 16th, 2014

Strong evidence now shows that human and animal parenting share many nervous system mechanisms. This is the conclusion of Yerkes National Primate Research Center researchers Larry Young, PhD, and James Rilling, PhD, in their review article about the biology of mammalian parenting, published in this week's issue of Science. Better understanding this biology could lead to improved social development, benefitting generations of humans and animals to come. In their article, Young and Rilling review the biological mechanisms governing a shift in mammals' parental motivation that begins with aversion and transforms into irresistible attraction after giving birth. They say the same molecules that prepare the uterus for pregnancy, stimulate milk production and initiate labor also activate specific neural pathways to motivate parents to nurture, bond with and protect their offspring. According to Young, "We have learned a tremendous amount about the specific hormonal and brain mechanisms regulating parental behavior and how parental nurturing influences the development of the offspring brain by using animal models, and many of these same mechanisms influence human parenting behavior as well." Young is division chief of Behavioral Neuroscience and Psychiatric Disorders at the Yerkes Research Center, director of the Center for Translational Social Neuroscience at Emory, … Continue reading

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'Grey's Anatomy': Ellen Pompeo's simple reason why Meredith can't go to D.C.

Posted: Published on August 16th, 2014

Now that most of the Fab Five have left Grey Sloan Memorial, it seems the time could be ripe for Meredith to finally move on from the hospital shes called home for the last 10 seasons of Greys Anatomydespite telling Derek she didnt want to move to Washington, D.C. in the season finale. However, Ellen Pompeo thinks theres a very plausible reason why Meredith cannot follow her husband to Capitol Hill. Obviously, Meredith and Derek cant go anywhere, because the show cant be in Washington, because then I would know that my parents are really alive and living in the White House and that might piss Meredith off if she goes and sees that Ellis and Thatcher both faked their deaths, Pompeo tells EW with a hearty laugh. The actress is, of course, referring to Greys alums Kate Burton and Jeff Perry both starring on one of executive producer Shonda Rhimes other Thursday night dramas, Scandal, which is not set in the same universe as the ABC medical drama and its spin-off Private Practice. (For the record, Burton will reprise her role as the late Ellis Grey in the season premiere to help unfold the mystery behind Mers new half-sister.) … Continue reading

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Dr. Haitham Masri Launches 'Retina-Ready' Website

Posted: Published on August 16th, 2014

Dearborn, Michigan (PRWEB) August 15, 2014 Dr. Haitham Masri and his staff at the Masri Clinic for Laser and Cosmetic Surgery is excited to announce the launch of their new website. Created using patient-friendly responsive design, Dr. Masris site is meticulously built to look sharp and clear on any device, including smart phones, tablets, laptops, and PCs. The responsive website provides people with retina-ready information; meaning pictures are well defined, colors are bright, and navigation between sections is simple. Dr. Masris site offers patients a variety of Before/After photos and videos, as well as an expansive library of procedure information. The new format is perfect for those considering their first cosmetic procedure, as well as returning patients. This innovative, new site is part of Dr. Masris commitment to providing his patients with the most cutting-edge tools and procedures available in aesthetic medicine. We are always the first to bring in new technology, Dr. Masri explains. The decision to update the website was made to ensure all patients could access information on aesthetic care, from the comfort of their own surroundings. Dr. Masri is one of Michigans leading cosmetic and reconstructive surgeons, bringing over 25 years of experience to every patient. … Continue reading

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Adipose-derived stem cells and nerve regeneration

Posted: Published on August 16th, 2014

PUBLIC RELEASE DATE: 14-Aug-2014 Contact: Meng Zhao eic@nrren.org 86-138-049-98773 Neural Regeneration Research Stem cell researchers at the Blond McIndoe Laboratory, University of Manchester, UK, led by Dr Adam Reid, present a review of the current literature on the suitability of adipose-derived stem cells in peripheral nerve repair. Injuries to peripheral nerves are common and cause life-changing problems for patients alongside high social and health care costs for society. Current clinical treatment relies on sacrificing a nerve from elsewhere in the body to provide a nerve graft at the injury site, but much work has been done to develop a bioengineered nerve graft that would not require this sacrifice. Stem cells are prime candidates as accelerators of regeneration in these nerve grafts. This prospect, reported in Neural Regeneration Research (Vol. 9, No.14, 2014), presents the current literature on the potential of adipose-derived stem cells as tools to improve nerve regeneration through bioengineered nerve grafts. "Adipose-derived stem cells have the potential to stimulate improved nerve regeneration", stated the authors. "Their incorporation into bioengineered nerve graft treatments could revolutionize the current clinical approach to peripheral nerve repair". ### Article: "Adipose derived stem cells and peripheral nerve regeneration" by Alessandro Faroni, Richard JP Smith, … Continue reading

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Eisai Outraged at IQWiG Failure to Recognise Additional Benefit of Innovative Partial Epilepsy Treatment Fycompa …

Posted: Published on August 15th, 2014

Eisai, together with leading doctors and patient groups, are disappointed that the report issued by the Institute for Quality and Efficiency in Health Care (IQWiG) has determined no additional benefit for new generation epilepsy treatment Fycompa (perampanel), when compared to conventional antiepileptic drugs (AEDs) as defined by the Federal Joint Committee (G-BA).[1] It is expected that the G-BA will publish their decision after due and balancedconsideration of all relevant aspects of the IQWiG report, written statements and oral hearing, in November 2014. Eisai is confident that the G-BA will take a more flexible, patient-oriented approach to their decision making process which considers both the evidence of perampanel's clinical benefit and the needs of people with poorly controlled epilepsy. Perampanel was approved by the European Commission in 2012 and is indicated for the adjunctive treatment of partial onset seizures, with or without secondarily generalised seizures, in patients with epilepsy aged 12 years and older.[2] "The report by IQWiG has neglected to take into account the German people with epilepsy who already experience an additional benefit with Fycompa. Considerable real world experience data is available in Germany, and I have personally witnessed and published about the additional benefit this treatment can bring … Continue reading

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Adults with autism at higher risk of sexual victimization, study shows

Posted: Published on August 15th, 2014

Adults with autism are at a higher risk of sexual victimization than adults without, due to lack of sex education, but with improved interventions that focus on sexual knowledge and skill building, the risk could be reduced, according to a recent study by York University researchers. "Adults with Autism Spectrum Disorder (ASD) gain more of their sexual knowledge from external sources such as the internet and the television whereas social sources would include parents, teachers and peers," says Professor Jonathan Weiss in the Faculty of Health and the CIHR Chair in Autism Spectrum Disorders Treatment and Care Research. The study, conducted by Weiss, and clinical developmental psychology PhD candidates Stephanie Brown-Lavoie and Michelle Viecili, found that the lack of sexual knowledge in adults with autism played a role in increasing the risk of sexual victimization -- experiences of sexual coercion, unwanted sexual contact, attempted rape or rape. The researchers used an online survey involving 95 adults with ASD and 117 without, ranging in age from 19 to 43. Of the 95 participants with ASD, 78 per cent reported at least one occurrence of sexual victimization compared to 47.4 per cent of the 117 adults without ASD who participated in the … Continue reading

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$300K for Autism Research at Arkansas Childrens Hospital

Posted: Published on August 15th, 2014

WASHINGTON, DC - The Arkansas Childrens Hospital Research Institute is set to receive nearly $300,000 to improve services for children and youth with autism spectrum disorders (ASD). The government funding was announced today by U.S. Senators Mark Pryor and John Boozman, along with Congressman Tim Griffin. Many parents have told me early awareness and treatment has been life-changing for their children, helping their kids perform better in school and in their daily interactions. This funding provides a significant boost to the services we can provide to Arkansas children, Pryor said. The more we learn about autism, the more we can help the growing number of Arkansas children affected. Thats why I will continue to do all I can to ensure funding for autism research, early treatment and education. Its important that we continue to build on the research efforts for early detection and education to support Arkansas children with autism and their families. This grant is important for Childrens Hospital and the work it does in helping identify the best practices and opportunities to improve the lives of kids living with autism, Boozman said. "While the occurrence and severity of autism symptoms vary widely, many cases go unrecognized, undiagnosed or … Continue reading

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Robin Williams had Parkinson's disease

Posted: Published on August 15th, 2014

STORY HIGHLIGHTS (CNN) -- Robin Williams was sober but was struggling with depression, anxiety and the early stages of Parkinson's disease when he died, his widow said Thursday. The diagnosis of the progressive illness was "an additional fear and burden in his life," a person familiar with Williams' family told CNN on Thursday. Williams was found dead in his Northern California home Monday from what investigators suspect was a suicide by hanging. While fans and friends have looked for answers to why the 63-year-old comedy icon would take his own life, his wife, Susan Schneider, issued a written statement about Williams' health that he had kept a secret. "Since his passing, all of us who loved Robin have found some solace in the tremendous outpouring of affection and admiration for him from the millions of people whose lives he touched," Schneider said. "His greatest legacy, besides his three children, is the joy and happiness he offered to others, particularly to those fighting personal battles. Comedic actor Robin Williams dies Comedic actor Robin Williams dies Comedic actor Robin Williams dies Comedic actor Robin Williams dies Read more from the original source: Robin Williams had Parkinson's disease … Continue reading

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