Volume 20, Issue 8 pp. 949-959
Original Article

High titer of anti-citrullinated peptide antibody is a risk factor for severe carotid atherosclerotic plaque in patients with rheumatoid arthritis: the TOMORROW study

Tadashi Okano

Tadashi Okano

Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan

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Kentaro Inui

Kentaro Inui

Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan

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Yuko Sugioka

Yuko Sugioka

Center for Senile Degenerative Disorders (CSDD), Osaka City University Graduate School of Medicine, Osaka, Japan

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Kenichi Sugioka

Kenichi Sugioka

Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan

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Yoshiki Matsumura

Yoshiki Matsumura

Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan

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Shinji Takahashi

Shinji Takahashi

Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan

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Masahiro Tada

Masahiro Tada

Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan

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Kenji Mamoto

Kenji Mamoto

Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan

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Shigeyuki Wakitani

Shigeyuki Wakitani

Department of Health and Sports Sciences, Mukogawa Women's University, Hyogo, Japan

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Tatsuya Koike

Corresponding Author

Tatsuya Koike

Center for Senile Degenerative Disorders (CSDD), Osaka City University Graduate School of Medicine, Osaka, Japan

Search Institute for Bone and Arthritis Disease (SINBAD), Shirahama Foundation for Health and Welfare, Wakayama, Japan

Correspondence: Tatsuya Koike, Center for Senile Degenerative Disorders (CSDD), Osaka City University Medical School, Asahi-machi Abeno-ku 1–4-3, Osaka 545–8585, Japan. Email: [email protected]Search for more papers by this author
Hiroaki Nakamura

Hiroaki Nakamura

Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan

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First published: 19 June 2017
Citations: 11

Abstract

Aim

Cardiovascular disease is one of the complications of rheumatoid arthritis (RA). We researched the morbidity and severity of existing carotid atherosclerosis plaque and associated risk factors in patients with RA.

Method

This study included 413 participants, including 208 patients with RA and 205 age- and sex-matched healthy volunteers. Carotid ultrasound, clinical data collection and assessment of cardiovascular risk factors were performed. Atherosclerotic plaque was defined as an intima-media thickness ≥ 1.1 mm. Severity of plaque was assessed by plaque score, defined as the sum of the maximal thickness of all plaques in bilateral carotid arteries.

Results

Data were analyzed from 200 patients with RA and 202 controls. Carotid plaque was observed more frequently in patients with RA than controls (47.0 vs. 36.1%, P = 0.027). Moreover, plaque score was significantly higher in RA patients (P = 0.032). In logistic regression analysis, RA represented an independent risk factor for the presence of plaque (adjusted odds ratio, 1.68; 95% confidence interval, 1.03–2.74). Comparing RA patients with and without plaque, anti-cyclic citrullinated peptide (anti-CCP) antibodies titer was significantly higher in patients with plaque (315.8 ± 454.1 U/mL) than in patients without (165.7 ± 281.1 U/mL; P = 0.005). Moreover, multiple linear regression analysis clarified that anti-CCP antibody titer was associated with plaque score in patients with RA.

Conclusion

High prevalence of any carotid plaques and severe carotid plaques were more frequent in patients with RA. High titer of anti-CCP antibodies represented a risk factor for severe carotid atherosclerotic plaque in patients with RA.

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