Despite risks, many staying with TysabriBoston Globe, United States - 5 hours ago

Background:The impact of L-arginine on atherogenesis and its ability to prevent endothelial dysfunction have been studied extensively during the past years. L-arginine is a substance for nitric oxide synthesis which involves in apoptosis. Hypercholesterolemia promotes endothelial dysfunction, and it is hypothesized that L-arginine prevents endothelial dysfunction through endothelial cells apoptosis inhibition. To test this hypothesis, thirty rabbits were assigned into two groups. The control group received 1% cholesterol diet for 4 weeks, and the L-arginine group received same diets plus 3% L-arginine in drinking water.Results:No significant differences were observed in cholesterol level between two groups, but the nitrite concentration in L-arginine group was significantly higher than other group (control group: 11.8+/-1; L-arginine group: 14.7+/-0.5 umol/l ); (p

Background:A novel human nuclear receptor interaction protein (NRIP) has recently been discovered by Chen SL et al, which may play a role in enhancing the transcriptional activity of steroid nuclear receptors in prostate (LNCaP) and cervical (C33A) cancer cell lines. However, knowledge about the biological functions and clinical implications of NRIP, is still incomplete. Our aim was to determine the distribution of NRIP expression and to delineate the cell types that express NRIP in various malignant tumors and healthy non-pathological tissues. This information will significantly affect the exploration of its physiological roles in healthy and tumor cells.

The federal Centers for Disease Control and Prevention's (CDC) long anticipated revised estimate of annual new cases of HIV infections will be revealed on Aug. 3 in a paper published in the Journal of the American Medical Association (JAMA).

The decision to undergo surgery can be particularly difficult and confusing for older adults. In a study published in the July 2008 issue of the Journal of Bone and Joint Surgery, Richard M. Frankel, Ph.D., of the Indiana University School of Medicine, and colleagues report that older patients and their surgeons do not communicate effectively when exploring surgical treatment options.

A leading humanitarian agency has today warned that the world's biggest conference on HIV and AIDS will miss the mark unless attendees come away making firm commitments to end mother-to-child transmission of the disease, increase access to pediatric treatment and extend care for affected children.

The antiviral drug, valganciclovir, can lower the levels of Epstein-Barr virus in children with liver transplants, according to a new study. About half of young transplant recipients with detectable levels of the virus in their blood responded to a long course of the therapy, with 60 percent maintaining their response when they stopped taking the drug.

Patients who have had acute allergic-like reactions to nonionic iodinated contrast material rarely develop any serious long-term problems and can be treated safely with commonly used medications according to a recent study conducted by researchers at the University of Michigan Hospitals in Ann Arbor.

As millions of people across the globe begin accessing treatment and care for HIV/AIDS, the Ford Foundation today said that creating a world where people with HIV/AIDS can lead full lives with dignity, purpose and access to opportunity is a critical priority in the global response to the disease.

Two new studies examine the use of the nucleoside polymerase inhibitor, R1626, to the standard therapy for hepatitis C. The reports appear in the August issue of Hepatology, a journal published by John Wiley & Sons on behalf of the American Association for the Study of Liver Diseases (AASLD). The articles are available online at Wiley Interscience (http://www.interscience.wiley.com/).

A report released yesterday by the Center for Public Integrity, "Perils of the New Pesticides," distorts the truth about the health effects of chemicals in pest management products, according to the Consumer Specialty Products Association (CSPA). Of specific concern is the author's misinterpretation of data collected by the U.S.

A large number of U.S. children live or will live with a "social father," a man who is married to or cohabiting with the child's mother, but is not the biological father.

Injuries caused by gun and knife crime are costing the National Health Service in excess of 3million pounds a year, new research reveals. The study, by the Trauma Audit Research Network (TARN) at The University of Manchester, looked at all penetrating trauma injuries that resulted in immediate admission to hospital for three or more days or death within 93 days.

The American Society for Biochemistry and Molecular Biology (ASBMB) has selected Bill and Melinda Gates as recipients of the 2009 Howard K. Schachman Public Service Award, the society's highest nonscientific honor.

According to a study published on bmj.com, most cancer patients make a decision about treatment with little or no information about the survival benefits of palliative chemotherapy. Palliative chemotherapy is a way to reduce the severity of symptoms for patients with advanced cancer.

By removing Helicobacter pylori bacteria from gastric cancer patients after surgery can reduce the odds of cancer redevelopment dramatically, according to an article released on August 1, 2008 in The Lancet. H. plyori is a virus that usually infects the stomach or small intestines.

The standard regimens to treat tuberculosis (TB) are inadequate in countries with high rates of multi-drug resistant (MDR) TB. In countries with high rates of MDR-TB, patients are nearly twice as likely to fail their initial treatment than those in countries with low rates, according to a new analysis of World Health Organization (WHO) data.

Two hormone-like compounds linked to the consumption of soy-based foods can cause irreversible changes in the structure of the brain, resulting in early-onset puberty and symptoms of advanced menopause in research animals, according to a new study by researchers at North Carolina State University.

Creatine, a popular nutritional supplement renowned for enhancing athletic performance and muscle strength, does not improve exercise outcomes in patients with chronic obstructive pulmonary disease (COPD), according to a new study.

A research team led by University of Washington scientists has found that several people in South and Southeast Asian countries working and living around monkeys have been infected with simian foamy virus (SFV), a primate virus that, to date, has not been shown to cause human disease.