Chemical constituents and antiulcerogenic potential of scales of Cynara scolymus heads 1 Mahmoud I. Nassar 1 , Tahia K. Mohamed 1 , Abdelsamed I. Elshamy 1 *, Sayed A. El-Toumy 2 , Azza Abdel Lateef 3 , and Abdel-Razik Farrag 4 . 1 Department of Natural Compounds Chemistry, National Research Centre, Dokki, 12622, Cairo, Egypt. 2 Chemistry of Tannins Department, National Research Centre, Dokki, 12622, Cairo, Egypt. 3 Department of Human Enzymes and Proteins, National Research Centre, Dokki, 12622, Cairo, Egypt. 4 Department of Pathology, National Research Centre, Dokki, 12622, Cairo, Egypt. * Corresponding author: Dokki, 12622, Cairo, Egypt. Tel.: +20233335964; Fax: +20233370931, E-mail: abdelsamed_elshamy@yahoo.com This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/jsfa.06065 © 2013 Society of Chemical Industry