Food Allergen Labeling and Purchasing Habits in the United States and Canada.

Background: Mandatory labeling of products with top allergens has improved food safety for consumers. Precautionary allergen labeling (PAL), such as "may contain" or "manufactured on shared equipment," are voluntarily placed by the food industry.

Objective: To establish knowledge of PAL and its impact on purchasing habits by food-allergic consumers in North America.

Parents' perceptions of a patient portal for managing their child's chronic illness.

Through interviews, we sought to describe parents' perceptions of a patient portal for the management of their child's chronic illness. Parents perceive patient portals as beneficial, providing easier communication with care providers, convenience, a sense of control, reduced anxiety, and reassurance. Future research should aim to quantitate these benefits.

Nicotine induces resistance to chemotherapy in nasal epithelial cancer.

Background: Epidemiological and clinical data implicate that in patients with cancer, continued smoking causes progression of cancer growth and resistance to therapy. The carcinogens possess the ability to block apoptosis, an important mechanism in the development of tumors and resistance to chemotherapy. We previously showed that nicotine enhances growth and proliferation in lung cancer.

Nicotine induces resistance to chemotherapy by modulating mitochondrial signaling in lung cancer.

Continued smoking causes tumor progression and resistance to therapy in lung cancer. Carcinogens possess the ability to block apoptosis, and thus may induce development of cancers and resistance to therapy. Tobacco carcinogens have been studied widely; however, little is known about the agents that inhibit apoptosis, such as nicotine.