contact dermatitis is an inflammatory reaction of the skin and mucosa to either external or internal factors. it can be divided to two forms of irritant contact dermatitis and allergic contact dermatitis. nickel is one of the most common materials that causes allergic contact dermatitis and is widely used in orthodontic appliances. the inflammatory reaction to this metal in orthodontics is usua...

Antiinflammatory therapy for chronic obstructive pulmonary disease (COPD) can be directed at several stages of the inflammatory process. Much attention has been focused on blocking the damaging effects of toxic mediators released by inflammatory cells, including antioxidants and antiproteases. An alternate strategy is to block the recruitment of inflammatory cells into the lung, such as by inhi...