title: The significance of platelet activation in ankylosing spondylitis.
abstract: The objective of this study was to explore the significance of platelet activation in patients with ankylosing spondylitis (AS). Thirty-five AS patients and 15 normal controls were selected from November 2005 to October 2006. The number of CD62P- and CD63-positive cells were detected by flow cytometry. At the same time, the erythrocyte sedimentation rate (ESR), platelet count (PLT) and C-reactive protein (CRP) were determined in both groups. The percentage of CD62P-positive cell in AS patients (13.60 +/- 7.64%) was significantly higher than that in control group (2.78 +/- 1.04%; P < 0.01). The percentage of CD63-positive cell in AS patients (6.92 +/- 4.16%) was significantly higher than that in control group (4.13 +/- 1.85%; P < 0.05). The levels of CRP (20.18 +/- 23.17 mg/l), PLT (259.54 +/- 102.59 x 10(9)/l) and ESR (36.86 +/- 31.23 mm/h) in AS patients were higher than those in normal controls, respectively (3.21 +/- 2.18 mg/l, P < 0.01; 197.00 +/- 55.70 x 10(9)/l, P < 0.01; 12.25 +/- 5.05 mm/h, P < 0.05). Platelet activation may be a sign of AS exacerbation.
authors.affiliation: Department of Nephrology and Rheumatology, the Sixth Hospital Affiliated to Shanghai Jiaotong University, 600 Yishan Road, Shanghai 200233, China. zyzwq1030@sohu.com
authors.forename: Feng
authors.initials: F
authors.lastname: Wang
authors.forename: Chun-Gen
authors.initials: CG
authors.lastname: Yan
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Xiang
authors.forename: Tao
authors.initials: T
authors.lastname: Xing
authors.forename: Nian-Song
authors.initials: NS
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D015703:Antigens, CD / Q000378:metabolism; D001792:Blood Platelets / Q000378:metabolism*; D001799:Blood Sedimentation; D002097:C-Reactive Protein / Q000378:metabolism; D018450:Disease Progression; D005260:Female; D005434:Flow Cytometry; D006801:Humans; D008297:Male; D008875:Middle Aged; D019007:P-Selectin / Q000378:metabolism; D015539:Platelet Activation; D010976:Platelet Count; D010980:Platelet Membrane Glycoproteins / Q000378:metabolism; D012720:Severity of Illness Index; D013167:Spondylitis, Ankylosing / Q000097:blood*; D060149:Tetraspanin 30
chemical_list: D015703:Antigens, CD; C554586:CD63 protein, human; D019007:P-Selectin; D010980:Platelet Membrane Glycoproteins; D060149:Tetraspanin 30; D002097:C-Reactive Protein