Dexmedetomidine administration as a possible cognitive enhancer through increasing the level of brain-derived neurotrophic factors in surgical patients: a systematic review and met... oleh Masoud Dehbozorgi, Fatemeh Fereidooni, Ramin Bozorgmehr, Javad Zebarjadi Bagherpour, Arman Shafiee, Ida Mohammadi, Mohammad Javad Amini, Niloofar Seighali, Kyana Jafarabady, Shahryar Rajai Firouzabadi, Diba Akbarzade, Razman Arabzadeh Bahri