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Every year, thousands of Americans volunteer to take part in medical research studies. But what happens after their participation is over? Many might never hear what those studies revealed. Now, a new review of the issue suggests that participants' desire to know the results of studies outweighs concerns by some bioethicists about the potential negative psychological consequences of sharing some results.

Researchers have demonstrated the possibility of preventing the human malaria parasite, Plasmodium falciparum, which is responsible for more than a million malaria deaths a year, from becoming sexually mature.

New results from the world’s largest ever study of diabetes treatments show that intensive blood glucose (sugar) control using modified release gliclazide and other drugs as required, protects patients against serious complications of the disease. In particular, intensive treatment reduces the risk of kidney disease by one-fifth.

Physicians and other researchers have developed a unique statistical model that predicts the probability of a patient being cancer free 12 years after initial surgical treatment.

Gaining body fat may be a good thing, at least for people with type 1 diabetes. The new study followed 655 patients with type 1 diabetes for 20 years and found patients whose body mass index increased the most were one-third less likely to die than those who had decreases or smaller increases in BMI.

Nearly half of all heart surgery patients may experience blood sugar levels high enough to require temporary insulin treatment after their operation, even though they've never had diabetes, according to a new study. And a significant minority of those patients might need to take medicines for days or even weeks after they leave the hospital, to help their blood sugar levels reach normal again, the researchers show.

The International Diabetes Federation has warned that recent research demonstrates that type 2 diabetes and obstructive sleep apnea are closely related, and that both disorders have significant implications on public health and on individuals.

A study of individuals with age-related macular degeneration (AMD) found that nearly 40 percent of those likely to benefit from specific vitamin/mineral supplements were either not taking the supplements or not using the recommended dosage. The study also showed that some patients used high-dose supplements even in the absence of evidence that these would be effective for their levels of AMD or other eye conditions.

Intensively targeting blood sugar to near-normal levels in adults with type 2 diabetes at especially high risk for heart attack and stroke does not significantly reduce the risk of major cardiovascular events, such as fatal or nonfatal heart attacks or stroke, but increases risk of death, compared to standard treatment.