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PHILADELPHIA -- There's a first time for every biting dog, and the animals that bite children may show warning signs, according to investigators here.

BOSTON -- The Gleason score of 7 for localized prostate cancer may be a moving prognostic target, according to investigators here.

MADISON, Wis. -- CT colonography, the noninvasive heir presumptive to optical colonoscopy, has won a clinical round here, equaling the older technique for detection of developing neoplasia in a study of more than 6,000 patients.

WASHINGTON -- The AMA said it was "deeply disappointed" with President Bush's veto of the SCHIP reauthorization, and the American Academy of Pediatrics called the action "hurtful to children."

ROCHESTER, Minn. -- Many liver biopsies to diagnose liver fibrosis and cirrhosis may soon be supplanted by non-invasive imaging techniques, researchers here said.

WASHINGTON -- Most Medicare patients will pay .90 more per month in Part B premiums next year -- to .40.

ROCKVILLE, Md. -- The FDA has clarified reports by some major media suggesting that the agency has plans for new regulations on over-the-counter cough and cold medications for children.

BETHESDA, Md. -- More than 30% of American children and adolescents take dietary supplements regularly, most often multivitamins and multiminerals, according to an NIH study.

STOCKHOLM -- A healthy cognitive reserve, deposited over a lifetime of learning, appears to protect the better educated patients from dementia, investigators here suggested.

NEW YORK -- Giving bigger ribavirin doses to heavier hepatitis C patients appears to result in better outcomes, especially for African Americans, researchers here said.

CHICAGO -- A neat orderly mind augmented by a conscientious personality tends to resist Alzheimer's disease, researchers here found.

TAMPA, Fla. -- Early prescription of glasses for children with bilateral refractive amblyopia may prevent a lifetime of visual disability, a team of pediatric ophthalmologists has found.

PHILADELPHIA -- Reliance on a focused history and physical and judicious use of diagnostic imaging are hallmarks of new guidelines for management of low back pain issued jointly by the American College of Physicians and the American Pain Society.

Nonalcoholic fatty liver disease (NAFLD) is an increasingly recognized condition in the general population worldwide.

In her case report, Crum-Cianflone1 describes an HIV- infected patient receiving antiretroviral therapy with no history of significant alcohol use and an undetectable HIV-1 RNA level who presented with a recurrent, mildly elevated alanine aminotransferase level.

Hemophagocytic syndrome is a macrophage disorder that may develop as a result of immunological activation, such as that seen in severe infection.

Sanchez and colleagues1 report a case of histoplasmosis-associated reactive hemophagocytic syndrome in a 61-year-old HIV-infected man. The association of hemophagocytic syndrome with HIV infection is important for several reasons:

The Fourth International AIDS Society Conference on HIV Pathogenesis, Treatment, and Prevention (4th IAS Conference) was held in Sydney, Australia, from July 22 to 25, 2007.