Gene therapy, to replace defective genes or destroy cancerous cells, is gaining momentum. With help from radiologists, the targeting is getting more precise. Specific sites can be determined in advance by the radiologist. Using focused ultrasound, gene delivery liposomes will implode, releasing their contents in the most effective area. The Radiological Society of North America says that targeted delivery can reduce patient side effects from drugs used in treatment.
One of a parent's biggest predicaments is battling head lice. The battle is even harder to win as schools report a greater frequency of treatment-resistant lice. Piedmont Pharmaceuticals is testing a product that may be a swan song for pesky lice: a head rinse that's insecticide-free and less likely for lice to develop a resistance against. The water-like head rinse is currently in clinical trials in Canada, and will be the focus of a U.S. trial in early 2004. The product, applied to hair like other lice treatments, is odorless and non-irritating.
Cola drinkers can often tell the difference between diet and regular, but what about between caffeinated and caffeine-free Colas? The Smell and Taste Treatment and Research Foundation from Chicago recently conducted a taste test with high school students who were regular Cola drinkers. All declared their preference for caffeinated Colas. However in the double-blind, randomized test, 86% couldn't tell the difference between regular and caffeine-free versions of the drinks.