College Students Drunker Than Originally Thought

The harm caused by alcohol consumption among college students may exceed previous estimates of the problem. Researchers report that unintentional fatal injuries related to alcohol increased from about 1,500 in 1998 to more than 1,700 in 2001 among U.S. college students aged 18-24. Over the same period national surveys indicate the number of students who drove under the influence of alcohol increased by 500,000, from 2.3 million to 2.8 million. The new findings appear in the 2005 issue of the Annual Review of Public Health.

Cellular Defects in Premature Aging Disease are Reversible

Cells affected by Hutchinson-Gilford Progeria Syndrome (HGPS) — a disease associated with premature aging — can be made healthy again, according to findings by scientists at the National Cancer Institute (NCI), part of the National Institutes of Health (NIH). Using specially modified segments of DNA, NCI researchers Paola Scaffidi, PhD, and Tom Misteli, PhD, reversed the abnormalities seen in HGPS cells by correcting defects associated with the key protein, lamin A. By demonstrating that HGPS cellular characteristics are reversible, this study, appearing in Nature Medicine online on March 6, 2005*, brings scientists one step closer to understanding this devastating childhood disease and might provide insights into the normal aging process.

Biological clock may shut down long-term memory at night

If you crammed for tests by pulling ‘all nighters’ in school, ever wonder why your memory is now a bit foggy on what you learned? A University of Houston professor may have the answer with his research on the role of circadian rhythms in long-term learning and memory. Arnold Eskin, the John and Rebecca Moores Professor of Biology and Biochemistry at UH, was recently awarded two grants totaling $2,472,528 from the National Institutes of Health (NIH) to continue pursuing his investigations of memory formation and the impact of the biological clock on learning and memory.

Rapid, New Test Developed for Inherited Immune Deficiency

Researchers at the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH), have developed a new laboratory method that rapidly identifies babies born with inherited forms of severe immune deficiency. The new genetic test, which still must be validated before widespread use, could someday be added to the panel of tests that already screen newborns for a variety of disorders.

Topical gel inhibits HIV, herpes infection

Mount Sinai School of Medicine researchers have demonstrated that a gel applied in the vagina provides protection from both the human immunodeficiency virus (HIV) and the herpes simplex Virus. The study, presented at the 12th Conference on Retroviruses and Opportunistic Infections, is the first to show that a gel can retain anti-viral activity within the human vagina.

Researchers Uncover Key Step In Manufacture of Memory Protein

A cellular enzyme appears to play a crucial role in the manufacture of a protein needed for long-term memory, according to a team of researchers led by scientists at the National Institute of Child Health and Human Development of the National Institutes of Health. The protein is known as mBDNF, which stands for mature brain-derived neurotrophic factor. In an earlier study, another team of NICHD researchers had shown that mBDNF is essential for the formation of long-term memory, the ability to remember things for longer than a day.

Scientists replicate hepatitis C virus in laboratory

For the first time, scientists have replicated hepatitis C virus (HCV) in the laboratory. The ability to replicate HCV in cell culture will allow researchers to better study the life cycle and biology of this virus and to test potential antiviral compounds, which may lead to new therapies for the liver disease that results from infection with HCV. Scientists at the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), one of the National Institutes of Health (NIH), conducted the study, which appears in the Feb. 15, 2005 issue of Proceedings of the National Academy of Sciences (PNAS).

Taxol Pioneer Calls for Greater Emphasis on Natural Products Research

The RTI International researcher credited with discovering the cancer-fighting drug Taxol is calling for greater investment in natural products research following the discovery reported last month that Taxol slows the spread of Alzheimer’s disease. Dr. Mansukh C. Wani, who with his co-investigator the late Dr. Monroe E. Wall identified and published the structure of Taxol in 1971, said the scientific community is “simply not doing enough research related to natural compounds and as a consequence could be delaying discoveries.”

Rat Brain’s Executive Hub Quells Alarm Center if Stress is Controllable

Treatments for mood and anxiety disorders are thought to work, in part, by helping patients control the stresses in their lives. A new study in rats by National Institutes of Health (NIH) grantees provides insight into the brain mechanisms likely involved. When it deems a stressor controllable, an executive hub in the front of the brain quells an alarm center deep in the brainstem, preventing the adverse behavioral and physiological effects of uncontrollable stress.

Test could improve detection of prion disease in humans

A highly sensitive post-mortem test could help scientists more accurately determine if a person died of Creutzfeldt-Jakob disease (CJD), a human neurological disorder caused by the same class of infectious proteins that trigger mad cow disease, according to a new study supported in part by the National Institutes of Health (NIH). The finding opens the possibility that such testing might be refined in the future so it can be used to detect prion disease in living people and animals before the onset of symptoms.

Researchers develop portable device that can detect heart and gum disease instantly

Someday in the not-too-distant future patients may visit a doctor’s office, provide a sample of saliva or blood, and know in minutes if they are prone to heart disease, gum disease, or cancer. There would be no sending samples to off-site labs for analysis and waiting days to obtain the vital information. A five-pound, hand-held medical diagnostic device being developed at the National Nuclear Security Administration’s Sandia National Laboratories promises to be this ticket to better health for millions of Americans.

Not-for-Profit Publishers Call New NIH Rule a Missed Opportunity

The final National Institutes of Health (NIH) rule on Enhanced Public Access to NIH Research Information is wasteful of federal research dollars and a missed opportunity to take advantage of available technology and existing efforts, according to a group of the nation’s leading not-for-profit medical and scientific publishers. The final rule ignores significant free access policies already existing in the not-for-profit publishing community that offer more cost-effective public access to the science in their journals.