SAN DIEGO,, Calif., Aug. 6 (UPI) -- A U.S.-led team of international scientists has discovered the cause of rosacea, a disease that causes facial redness and affects millions of people.
The team led by Dr. Richard Gallo, a professor of medicine and chief of the division of dermatology at the University of California-San Diego School of Medicine, determined the disease is caused by over-production of two interactive inflammatory proteins, resulting in excessive levels of a third protein that causes rosacea symptoms.
Rosacea, which has been called adult acne, usually affects people with fair skin between the ages of 30 and 60. Unlike acne, rosacea isn’t associated with a skin infection by one type of bacteria, although antibiotics are sometimes prescribed to treat its symptoms. A chronic condition, it becomes worse over time and is generally cyclic, flaring up for a period of weeks to months, and then subsiding for a time.
The research -- also involving scientists at the Veterans Administration’s San Diego Health Care System, Japan’s Asahikawa Medical College; the French National Institute of Health and Medical Research and the University Paul Sabati, both in Toulouse, France -- appears in the online edition of the journal Nature Medicine.