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New Study Indicates Radiologists Need Standards To Ensure Optimal Visual Accuracy
Radiologists, like professional pilots for example, depend on good vision as part of their occupation. However, radiologists unlike pilots are not required to undergo regular vision testing. A new study found that approximately 50% of radiologists surveyed indicated they don"t recall ever having their vision tested or it had been 24 months or longer since their last vision exam.
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Disney Elevates Heterosexuality To Powerful, Magical Heights
In the world of Disney, falling in heterosexual love can break a spell, save Christmas, change laws, stop wars and even, in the case of The Little Mermaid, cause an individual to give up her personal identity.
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During Pregnancy Obese Women Should Not Gain Weight, Study Suggests
For years, doctors and other health-care providers have managed pregnant patients according to guidelines issued by the American College of Obstetricians and Gynecologists (ACOG). In 1986, ACOG stated, "Regardless of how much women weigh before they become pregnant, gaining between 26-35 pounds during pregnancy can improve the outcome of pregnancy and reduce their chances of having the pregnancy end in fetal death." Until its revised guidelines were released yesterday, the Institute of Medicine (IOM) had recommended that overweight women should gain about 15 pounds during pregnancy.
Oncology

Hemophilia A Mice Benefit From Gene Therapy

Hemophilia A is an inherited bleeding disease caused by a lack of the blood clotting protein Factor VIII. It had been hoped that gene therapy would provide a breakthrough in treatment, but the most common gene therapy approach has had little clinical success. However, a team of researchers, at the University of Minnesota Medical School, Minneapolis, has now developed a new approach to target genes specifically to mouse liver sinusoidal endothelial cells (the cells that are the main of Factor VIII) and used it to provide long-term expression of Factor VIII in hemophilia A mice, markedly reducing their disease. They hope that their data might prove to be a step toward successful human clinical trials in individuals with hemophilia A. The team, led by Betsy Kren and Clifford Steer, coated nanoparticles with hyaluron so that they targeted liver sinusoidal endothelial cells. To test the efficacy of gene delivery, the hyaluron-coated nanoparticles were engineered to contain a therapeutic gene (Factor VIII) together with a genetic element known as Sleeping Beauty, which helps the therapeutic gene insert into the genome of the targeted cells (i.e, the liver sinusoidal endothelial cells). Even 50 weeks after hemophilia A mice were injected with these nanoparticles, levels of Factor VIII in the blood were the same as in the blood of normal mice and bleeding times were also similar to those of normal mice. The authors hope that this combination of technologies, the cell-specific nanocapsule delivery system and the Sleeping Beauty genetic element, will prove to be a viable gene therapy. TITLE: Nanocapsule-delivered Sleeping Beauty mediates therapeutic Factor VIII expression in liver sinusoidal endothelial cells of hemophilia A mice http://https://www.the-jci.org/article.php?id=34332 Karen Honey Journal of Clinical Investigation


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