[olsen]

excerpt:
"Like all epidemiology studies, this study raises new questions for research. First, it remains unknown why rosacea and PD are linked. Inflammation, for example, is implicated in both PD and rosacea, and the two share a particular molecular pathway involved in inflammation associated with molecules known as matrix metalloproteinases. The study authors suggest that future investigations could focus on this and other potential commonalities, including genetics. In addition, the researchers observed a slightly reduced risk for PD among those who were treated with an antibiotic agent that modifies the immune system, tetracycline..."

http://www.pdf.org/en/science_news/r.../pr_1458570982

[AnnT2]

Yes, I did have rosacea! Ah for the days when I concerned myself with that as an important condition!

The eyes and rosacea seem to be like the canaries sent into the mines in that they predict an ominous condition, Parkinson's. Frozen shoulder another predictor.

Ann

[anagirl]

Rosacea is also linked to the stomach bacteria, H. pylori. I had rosacea when I had H. pylori. Once the infection was treated, the rosacea cleared up and never returned (this was 12 years ago). I'm sure not all cases of rosacea are due to having H.pylori, but there is a link.
http://www.ncbi.nlm.nih.gov/pubmed/25653855

H.pylori has also been linked with affecting sinemet's absorption, and with worsening or motor symptoms in PD.
http://www.ncbi.nlm.nih.gov/pubmed/25560322

If you have rosacea, you may want to be tested for H. Pylori.