Gozde Hasbal, Tugba Yılmaz Ozden and Ayse Can of the Department of Biochemistry, Istanbul University have published (2014) a research article entitled Antioxidant and antiacetylcholinesterase activities of Sorbus torminalis (L.) Crantz (Wild service tree) fruits.
http://www.jfda-online.com/article/S1021-9498(14)00098-2/pdf
The article concluded that fruits of S. torminalis have antioxidant and anti-AChE properties and that the plant might be a natural source of antioxidants and AChE inhibitors. (AChE is an abbreviation of acetylcholinesterase. It is an important enzyme in the nervous system of animals. AChE inhibitors are widely used for the treatment of Alzheimer's disease. Ed.).