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Relationship and significance between anti-beta2-glycoprotein I antibodies and platelet activation state in patients with ulcerative colitis.

Abstract：

AIM:To study the relationship between anti-beta2-glycoprotein I (abeta2GPI) antibodies and platelet activation state in patients with ulcerative colitis (UC) and its significance. METHODS:Peripheral blood samples were collected from 56 UC patients (34 males and 22 females, aged 43.5 years, range 21-66 years), including 36 at active stage and 20 at remission stage, and 25 sex-and age-matched controls. The level of abeta2GPI was measured by ELISA. The platelet activation markers, platelet activation complex-I (PAC-I) and P-selectin (CD62P) were detected by flow cytometry. RESULTS:The A value for IgG abeta2GPI in the active UC group was 0.61 +/- 0.13, significantly higher than that in the remittent UC and control groups (0.50 +/- 0.13 and 0.22 +/- 0.14, P < 0.01). There was a significant difference between the two groups (P < 0.01). The A value for IgM abeta2GPI in the active and remittent UC groups was 0.43 +/- 0.13 and 0.38 +/- 0.12, significantly higher than that in the control group (0.20 +/- 0.12, P < 0.01). However, there was no significant difference between the two groups (P > 0.05). The PAC-I positive rate for the active and remittent UC groups was 30.6% +/- 7.6% and 19.6% +/- 7.8% respectively, significantly higher than that for the control group (6.3% +/- 1.7%, P < 0.01). There was a significant difference between the two groups (P < 0.01). The CD62P positive rate for the active and remittent UC groups was 45.0% +/- 8.8% and 31.9% +/- 7.8% respectively, significantly higher than that for the control group (9.2% +/- 2.7%, P < 0.01). There was a significant difference between the two groups (P < 0.01). In the active UC group, the more severe the state of illness was, the higher the A value for IgG abeta2GPI was, and the positive rate for PAC-I and CD62P was positively correlated with the state of illness (Fabeta2GPI = 3.679, P < 0.05; FPAC-I (%) = 5.346, P < 0.01; and FCD62P (%) = 5. 418, P < 0.01). Meanwhile, in the same state of illness, the A value for IgG abeta2GPI was positively correlated to the positive rates for PAC-I and CD62P. CONCLUSION:abeta2GPI level, platelet activation state and their relationship of them are closely correlated with the pathogenesis and development of UC.

journal_name

World J Gastroenterol

journal_title

World journal of gastroenterology

authors

Gao YH,Gao PJ,Wang CG,Wang XC,Piao YF

doi

10.3748/wjg.14.771

subject

Has Abstract

pub_date

2008-02-07 00:00:00

pages

771-5

issue

eissn

1007-9327

issn

2219-2840

journal_volume

pub_type

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Relationship and significance between anti-beta2-glycoprotein I antibodies and platelet activation state in patients with ulcerative colitis.