WEDNESDAY, Aug. 6 (HealthDay News) -- Medicinal marijuana helps relieve neuropathic pain in people with HIV, says a University of California, San Diego, School of Medicine study.

It included 28 HIV patients with neuropathic pain that wasn't adequately controlled by opiates or other pain relievers. The researchers found that 46 percent of patients who smoked medicinal marijuana reported clinically meaningful pain relief, compared with 18 percent of those who smoked a placebo.

WEDNESDAY, July 30 (HealthDay News) -- The odds of HIV infection increase fourfold for male injection drug users who were deported to Tijuana from the United States compared to non-deportees in the Mexican border city, a new study reports.

The findings, expected to be presented Aug. 5 at the International AIDS Conference in Mexico City, suggest further investigation is necessary into the risk factors of displacement and the need for programs that offer support to displaced persons on either side of the U.S./Mexico border.

MONDAY, July 28 (HealthDay News) -- Researchers have discovered a soaring increase in the number of fatal medication errors that occur in people's homes.

The report incidentally follows the death earlier this year of Heath Ledger, the 28-year-old actor who died from an accidental overdose of prescription drugs in his apartment in New York City.

The Center for Disease control has reported a record high measles outbreak in over a decade.

Infecting 127 U.S. citizens, compared to just 43 cases in 2007, rates have been unpredictably high so far this year.

Caused by a decrease in vaccinated persons and international travel, the infectious measles have spread to 15 states and Washington D.C.

These include Arizona, Arkansas, California, Georgia, Hawaii, Illinois, Louisiana, Michigan, Missouri, New York, New Mexico, Pennsylvania, Virginia, Wisconsin, and Washington.

MONDAY, June 30 (HealthDay News) -- A newly discovered molecular malfunction may explain the development of high blood pressure, diabetes and immune problems, researchers report.

Rogue versions of enzymes known as proteases roam the body, clipping off working segments of the receptors that allow insulin to enter cells and do its job, according to a report in the June 30 online issue of Hypertension.

That uncontrolled enzymatic activity also reduces the immune system's response to infection and raises blood pressure, the report noted.

THURSDAY, May 29 (HealthDay News) -- One glass of wine a day may not only be safe for the liver, but may actually reduce the risk of non-alcoholic fatty liver disease (NAFLD), according to a new study that challenges conventional wisdom.

The population-based study, from researchers at the University of California, San Diego, included 7,211 nondrinkers and 4,543 modest alcohol drinkers (an average of four ounces of wine, 12 ounces of beer, or one ounce of liquor per day) found that those who drank one glass of wine a day had half the risk of suspected NAFLD compared to nondrinkers.

MONDAY, May 19 (HealthDay News) -- Compared to a decade ago, kidney cancer patients in the United States are much more likely to be diagnosed with smaller tumors in the earliest, most treatable stage of the disease, resulting in a slightly higher survival rate.

Researchers analyzed the records of more than 200,000 kidney cancer patients in the National Cancer Database and found that stage 1 kidney cancers increased from about 43 percent of all kidney cancer cases in 1993 to 57 percent in 2004, while rates of stages 2, 3 and 4 kidney cancers declined.