Immunotherapy: A new option for advanced prostate cancer

Most prostate cancers respond well to androgen-deprivation therapy; prostate specific antigen (PSA) levels plummet, tumors shrink, and symptoms of the disease improve. The response can last for years but virtually all prostate cancers eventually escape androgen-deprivation therapy and sharply increasing a man chances of dying from prostate cancer. A new immunotherapy option, Provenge (sipuleucel-T) is now available. The new prostate cancer "vaccine" aims to rev up the body's own immunologic defense mechanisms so they will target androgen-independent prostate cancer cells. (Locked) More »

That nagging cough

A persistent or chronic cough that lasts longer than a few weeks can be worrisome, but for nonsmokers, the most common causes include asthma, bronchitis, post nasal drip, gastroesophageal reflux disease, and medication for high blood pressure. Before you attempt to diagnose and treat yourself, review these red flags that call for prompt medical attention. More »

Medical memo: Nutrition and fertility

A man's diet has a substantial effect on his risk of many important diseases including heart attack, stroke, hypertension, diabetes, various malignancies, and  obesity. But does a man's diet also influence his fertility? According to research from Spain, the answer may be yes. (Locked) More »

On call: Floaters

I'm 55 years old, and I only need glasses for reading. Recently though, I've seen tiny black specs that move around in random directions. My eyes are not red, watery, or painful, but I'm worried that I may have the start of an eye disease. (Locked) More »