Rosacea Linked to Parkinson’s Risk
According to new research published online by JAMA Neurology, the chronic inflammatory skin condition known as rosacea may be linked to Parkinson's disease through shared pathogenic mechanisms.
Rosacea is a chronic skin disease, featuring redness and pimples on the face and sometimes the eyes. In time, it may also cause a thickening of the skin. Middle-aged and older adults, and especially women during menopause, are more likely to develop the condition.
The Centers for Disease Control and Prevention (CDC) state that Parkinson's disease is the second most common neurodegenerative disease after Alzheimer's. Estimates are that up to 1 million Americans have the disease, and that there are 60,000 new diagnoses each year.
In studying potential links between new-onset Parkinson's and rosacea, the study team used data for over 5.4 million individuals. There was a diagnosis of Parkinson's in 22,387 individuals, while 68,053 had rosacea.
The rates for Parkinson's were 3.54 per 10,000 person-years for those with no rosacea, compared with 7.62 per 10,000 person-years in patients with rosacea. Patients with rosacea also tended to develop Parkinson's around 2.4 years earlier.
These findings indicate a potential link between rosacea and Parkinson's -- but more research is needed to establish any underlying causes and other possible risk factors, and future studies should include more diverse populations than were in this particular one.