Evening primrose, also known as sundrops, may be more useful in the garden than in the medicine cabinet.
April 30, 2013 The natural remedy is a popular option for people who aren't satisfied with standard medical treatments for eczema. But a review of the studies finds that evening primrose doesn't help with symptoms.
The green dots are HIV virus particles on a human white blood cell.
April 26, 2013 An oversight committee halted a big clinical study of an experimental HIV vaccine after a peek at preliminary results showed there was no way the study would be able show the vaccine works. More vaccinated people became infected with HIV than those who got placebo shots.
A microscopy image of a rat pancreas shows the insulin-making cells in green.
April 25, 2013 When researchers turned on a gene for the hormone in the livers of diabetic lab mice, the number of insulin-making cells in their pancreas glands tripled within 10 days. Although the research was conducted in animals, the scientists say the findings could be relevant for humans.
The skin test for tuberculosis sparks an itchy welt in people who have been exposed to the bacillus.
April 25, 2013 Problems at a Canadian factory have caused a shortage of tuberculosis tests in the U.S. Some hospitals and health departments around the country are deferring routing TB testing as a result.
SWAT team members stand guard on the campus of Massachusetts General Hospital following the explosions at the finish line of the Boston Marathon.
April 25, 2013 At Massachusetts General Hospital, Dr. Leana Wen cared for people hurt by the bomb blasts at the Boston Marathon finish line. She worried that the next patient she treated would turn out to be her husband. Ten days later, the sounds of sirens still shake her.
In this Jan. 18 photo provided by the NYU Langone Medical Center, a technician examines mice to determine their health at the hospital's complex in New York.
New York University/AP
April 25, 2013 When Superstorm Sandy flooded lower Manhattan last year, thousands of lab animals drowned and many scientists lost months or even years of work. The specialty animals can be very difficult to replace, but researchers say the loss of animal life is emotionally devastating and difficult to get over.
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April 25, 2013 But reproductive health advocates says there's a big problem with leaving contraception training out: Many residency programs these days are run by religious hospitals that don't believe in contraception.
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April 24, 2013 When gut microbes break down certain foods like red meat and eggs, they produce a compound tied to risks for heart attack, stroke and death, a study found. The research could lead to new ways to prevent heart disease by shifting the mix of gut bacteria.
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Layton, Utah police department employees Holly Plotnick and Shanae Perez pack discarded medications from a collection bin in the lobby in January 2010.
April 24, 2013 Wondering what to do with that Vicodin that's gathering dust in the medicine cabinet? The DEA is happy to take it off your hands. That method spares the environment and solves a pesky problem: giving a narcotic like that to anyone other than the person whose name is on the prescription is a felony.
Over the past several years, the FDA has deemed many dietary supplements to be "tainted" by unapproved drugs.
April 23, 2013 More than 200 dietary supplements have been recalled in recent years because they contain drugs that aren't listed on the label, an analysis finds. The ingredients are potentially harmful, researchers say.
When does it make sense to use a da Vinci robot like this one for surgery?
April 23, 2013 Hysterectomy are among the most common surgical procedures for women. With the advent of surgical robots, more doctors and women are opting for that approach. Does a robot, which costs more, make it better?
Warts: Easy to get and hard to get rid of.
April 22, 2013 Children who got warts were more likely to have school classmates and relatives with warts. But going swimming, using public showers and going barefoot had little effect on whether a kid had warts or not.
OxyContin's long-acting formulation makes it popular but also prone to abuse.
April 18, 2013 A push to make narcotic painkillers harder to abuse means that generic versions of OxyContin won't be allowed. But drugs that are more resistant to abuse are expensive and can still be addictive.
The bean of the castor-oil plant, Ricinus communis, is used in the production of castor vegetable oil and ricin, a poison.
Sasha Vasko/via Flickr
April 17, 2013 Ricin is a naturally occurring toxin that's found in castor beans. Castor-oil plants, the source of beans, are popular with gardeners. You can get sick by eating beans. But purified ricin can be made pretty easily and used for no-good.
Before your doctor gets to this, make sure he'll bill the colonoscopy as a screening test rather than a diagnostic one.
April 16, 2013 Save yourself some hassles by checking with your doctor before the test to make sure the office will bill the insurer for the procedure as preventive screening rather than a diagnostic test.
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