Tag Archives: neuroscience

Radiation a risk factor for brain tumors in young people, study finds

Researchers analyzed records of 35 patients who were diagnosed with meningiomas before age 30. Five had been exposed to ionizing radiation earlier in their lives. They include two patients who received radiation for leukemia at ages 5 and 6; one who received radiation at age 3 for a brain tumor known as a medulloblastoma; and one who received radiation for an earlier skull base tumor that appeared to be a meningioma. …

Metastatic brain tumor treatment could be on the horizon with use of SapC-DOPS — ScienceDaily

However, a new Cincinnati Cancer Center (CCC) study, published in the advance online edition of the journal Oncotarget, provides hope that previously studied SapC-DOPS could be used for treatment of brain cancer that has spread. Xiaoyang Qi, PhD, member of the CCC, associate director and associate professor in the division of hematology oncology at the University of Cincinnati (UC) College of Medicine and a member of the UC Cancer and Neuroscience Institutes and the Brain Tumor Center, says this critical data shows promise for finding treatment for one of the deadliest cancers. A lysosomal protein saposin C (SapC), and a phospholipid, known as dioleoylphosphatidylserine (DOPS), can be combined and assembled into tiny cavities, or nanovesicles, to target and kill many forms of cancer cells…

Metastatic brain tumor treatment could be on the horizon with use of SapC-DOPS

However, a new Cincinnati Cancer Center (CCC) study, published in the advance online edition of the journal Oncotarget, provides hope that previously studied SapC-DOPS could be used for treatment of brain cancer that has spread. Xiaoyang Qi, PhD, member of the CCC, associate director and associate professor in the division of hematology oncology at the University of Cincinnati (UC) College of Medicine and a member of the UC Cancer and Neuroscience Institutes and the Brain Tumor Center, says this critical data shows promise for finding treatment for one of the deadliest cancers…

Hormones impact stress, memories, understanding social cues

Today’s new findings show that: Maternal stress can reduce levels of a chemical in the placenta that influences many other functions, such as development in mice. Additionally, the chemical could serve as a biomarker for maternal stress, a known risk factor for neurodevelopmental disorders like autism and schizophrenia Estrogen replacement therapy in post-menopausal women may help prevent stress-related memory loss Other recent findings discussed show that: Tamoxifen, a drug used to treat breast cancer, may protect against cognitive loss in post-menopausal women Estrogens, commonly thought of as a female reproductive hormone, are produced in the brains of males and females. …

Outlawing drugs like marijuana censors science, researchers say

The outlawing of drugs such as cannabis, magic mushrooms and other psychoactive substances amounts to scientific censorship and is hampering research into potentially important medicinal uses, leading scientists argued on Wednesday. Laws and international conventions dating back to the 1960s have set back research in key areas such as consciousness by decades, they argued in the journal Nature Reviews Neuroscience. “The decision to outlaw these drugs was based on their perceived dangers, but in many cases the harms have been overstated,” said David Nutt, a professor of neuropsychopharmacology at Imperial College London. In a statement accompanying the Nature Reviews paper, he said the laws amounted “to the worst case of scientific censorship since the Catholic Church banned the works of Copernicus and Galileo”. “The laws have never been updated despite scientific advances and growing evidence that many of these drugs are relatively safe. And there appears to be no way for the international community to make such changes,” he said. “This hindering of research and therapy is motivated by politics, not science.” Nutt and Leslie King, both former British government drugs advisers, and co-author David Nichols of the University of North Carolina, called for the use of psychoactive drugs in research to be exempted from severe restrictions. “If we adopted a more rational approach to drug regulation, it would empower researchers to make advances in the study of consciousness and brain mechanisms of psychosis, and could lead to major treatment innovations in areas such as depression and PTSD,” Nutt said. Nutt was sacked as a government adviser in 2009 after publicly criticizing the government for ignoring scientific advice on cannabis and ecstasy. He has conducted a small human trial using psilocybin, the psychedelic ingredient in magic mushrooms. His study, using volunteers, suggested the drug had the potential to alleviate severe forms of depression in people who did not respond to other treatments. But in April, Nutt said his plans to conduct the first full clinical trial to explore psilocybin as a treatment had stalled because of stringent rules on the use of illegal drugs in research. The scientists said their call for reform had been endorsed by the British Neuroscience Association and the British Association for Psychopharmacology.source : http://www.foxnews.com/health/2013/06/12/outlawing-drugs-like-marijuana-censors-science-researchers-say/