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Results From Trials Of DHA In Alzheimer's Disease And Age-Related Cognitive Decline
Results from two large studies using DHA, an omega 3 fatty acid, were
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N.C. Bill Gives Students 'Vital Access' To Accurate Sex Education Instruction, Editorial States
A bill (S. 221) approved by the North Carolina Legislature that would require a public school sex education curriculum covering abstinence, contraception and sexually transmitted infections "will be the most comprehensive and science-based approach the state has used" for sex education, a Charlotte Observer editorial states, adding that Gov. Bev Perdue (D) "should sign it." The bill would require all public school districts in the state to teach a curriculum that focuses on abstinence but also includes information on preventing pregnancy and STIs. Parents would be able to have their children removed from the comprehensive portions of instruction. According to the editorial, the measure "still gives parents a choice in deciding what kind of sex education their children will receive." The editorial adds, "It also finally provides a curriculum that gives N.C. students vital access to age-appropriate, science-based information critical to their health, safety and well-being," which is "the kind of information that can help them make smart choices in serious situations."Parents are "often the best people for kids to turn to for advice and information" on sex, but "not all children have parents who can provide it, or are even willing to," and "not all children [who] go to their parents adhere to their advice," the editorial states. It continues, "The schools provide another avenue to get this critical advice and information -- and state lawmakers are right to make it available." According to the Observer, North Carolina has the ninth-highest teenage pregnancy rate in the U.S., and about "20,000 teenagers will get pregnant in North Carolina this year." A "comprehensive, science-based education program can help reduce the number of unintended teen pregnancies" and help reduce the spread of STIs, the editorial says. It concludes, "By reaching agreement on this matter, state lawmakers have given the children of this state vital tools to safeguard their health and welfare. ... Perdue should sign this bill and make it law" (Charlotte Observer, 6/26).
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Estrogen Getting Cool Reception From Dermatologists For Mixed Results In Improving Appearance Of Skin
For many women, hormone replacement therapy (HRT) can alleviate the physical symptoms associated with the change of life. But despite the initial hype generated by post-menopausal women who noticed a marked improvement in their skin"s appearance while on HRT, dermatologists argue that scientific studies of estrogen do not show definitive improvements for skin rejuvenation of photodamaged skin and the potential risks when used long-term outweigh any potential skin benefits.
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Second Language Represented In Different Part Of Brain, Single Case Study Suggests

A single case study from Israel of a bilingual man who suffered damage to one part of his brain suggests that a person"s first and second language are represented in different parts of the brain. Dr Raphiq Ibrahim of the Department of Learning Disabilities at the University of Haifa carried out the study and published a short paper on it in March 2009 in the journal Behavioral and Brain Functions. He also revealed a bit more about his work to the media yesterday, 8 July. Research on where different languages sit in the brain is unclear, especially that which investigates languages of similar and different linguistic structures, said Ibrahim. Some studies suggest that all the languages a person learns are represented in one area of the brain while others suggest that second and susequent languages are dissociated in the brain from the mother tongue. While there are several ways to investigate this further, Ibrahim said the best way was to examine a bilingual person who has suffered brain damage. His patient was a 41-year old bilingual man with Arabic as his mother tongue and fluent to a high level in Hebrew which he used in his professional life. The patient had suffered brain damage as a result of hemorrhage related to herpes encephalitis that left him with language disorder or aphasia that was still present after rehabilitation. During rehabilitation the man"s Arabic improved more than his Hebrew. After rehabilitation Ibrahim invited the patient to complete standardized language and cognitive tests that showed damage to his Hebrew skills was significantly greater than damage to his Arabic skills. Ibrahim wrote that: "The results revealed dissociation between the two languages in terms of both the types and the magnitude of errors, pointing to aphasic symptoms in both languages, with Hebrew being the more impaired." Further analysis also showed that the dissociation was caused by damage at the lexical level (vocabulary) rather than to the semantic system (meaning and interpretation). Ibrahim"s paper concluded that: "The results suggest that the principles governing the organization of lexical representations in the brain are not similar for the two languages." Ibrahim told the press that even though this is not enough evidence from which to develop a structural model of language representation in the brain, this finding is an important step because the two languages, which have similar structure, phonetics and syntax, have not been studied like this before. "Most of the evidence in this field is derived from clinical observations of brain damage in English- and Indo-European-speaking patients, and few studies have been carried out on individuals who speak other languages, especially Semitic languages such as Hebrew and Arabic." said Ibrahim. "Selective deficit of second language: a case study of a brain-damaged Arabic-Hebrew bilingual patient." Ibrahim R. Behavioral and Brain Functions 2009, 5:17. doi:10.1186/1744-9081-5-17 Published online 12 March 2009. University of Haifa. Written by: Catharine Paddock, PhD Copyright: Medical News Today Not to be reproduced without permission of Medical News Today


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