title: Increased osteoprotegerin and decreased pyridinoline levels in patients with ankylosing spondylitis: comment on the article by Gratacós et al.
authors.forename: Ricardo Prado
authors.initials: RP
authors.lastname: Golmia
authors.forename: Branca Dias Batista
authors.initials: BD
authors.lastname: Sousa
authors.forename: Morton Aaron
authors.initials: MA
authors.lastname: Scheinberg
mesh_terms: D000596:Amino Acids / Q000097:blood*; D006023:Glycoproteins / Q000097:blood*; D006801:Humans; D053244:Osteoprotegerin; D018160:Receptors, Cytoplasmic and Nuclear / Q000097:blood*; D018124:Receptors, Tumor Necrosis Factor; D013167:Spondylitis, Ankylosing / Q000097:blood*
chemical_list: D000596:Amino Acids; D006023:Glycoproteins; D053244:Osteoprotegerin; D018160:Receptors, Cytoplasmic and Nuclear; D018124:Receptors, Tumor Necrosis Factor; C506030:TNFRSF11B protein, human; C015484:pyridinoline