MELVILLE, N.Y., July 31, 2019 (GLOBE NEWSWIRE) — BioRestorative Therapies, Inc. (the “Company”) (OTC: BRTX), a life sciences company focused on stem cell-based therapies, today announced that it has entered into a securities purchase agreement with Arena Investors LP (“Arena”).   The agreement provides for the issuance and sale to Arena of 5,500,000 shares of Series …