MONTVALE, N.J., Oct. 1 /PRNewswire-FirstCall/ -- Synvista Therapeutics, Inc. (Amex: SYI - News) announces the appointment of Carl M. Mendel, M.D., 53, to the position of Vice President, Clinical Development and Chief Medical Officer, effective immediately. Dr. Mendel will be responsible for the clinical stage development of the Company’s lead products.