Journal of Capital Medical University ›› 2015, Vol. 36 ›› Issue (2): 287-290.doi: 10.3969/j.issn.1006-7795.2015.02.022

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Analysis of low density lipoprotein subclass in young patients with corneal arcus and normal serum lipids

Gao Xinxiao1, Guo Jia1, Lin Jie2, Meng Xin1, Wang Jun1   

  1. 1. Department of Ophthalmology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China;
    2. The Key Laboratory of Remodeling-related Cardiovascular Diseases, Ministry of Education, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, China
  • Received:2014-12-15 Published:2015-04-16
  • Supported by:

    This study was supported by National Natural Sciences Foundation of China(81370443, 81170793), Clinical Research Foundation from Chinese Medical Association(14010110548), Seed Project of Technical Development Foundation from Capital Medical University Affiliated Beijing Anzhen Hospital(2013Z02).

Abstract:

Objective To exactly analyze low density lipoprotein(LDL) subclass and examine the association between small dense LDL(sdLDL) and corneal arcus in young patients. Methods We selected 12 cases of young patients with corneal arcus and normal serum lipids. Another 12 control cases with matched age, gender, smoking were recruited from Beijing Anzhen Hospital between March 2014 and October 2014. LDL particle separation was performed by Lipoprint System: LDL subfractions were obtained and sdLDL proportion(% of sdLDL particles) was calculated. sdLDL% was compared with the Student t test between two groups. Logistic regression analysis was performed to evaluate the correlation between corneal arcus and its related factors. Results SdLDL% was increased in corneal arcus group compared with controls[(19.64±6.52)% vs (13.16±6.29)%]. The difference between the two groups was significant(P=0.020). SdLDL% was significantly associated with corneal arcus(P=0.040) after controlling for age and LDL. SdLDL% played a role in the development of corneal arcus(OR=1.49, 95% CI: 1.01-2.19, P<0.05). Conclusion These findings suggested that young patients with corneal arcus and normal serum lipids had increased level of sdLDL proportion, indicating the abnormality of LDL subclass in such cases.

Key words: corneal arcus, Lipoprint LDL System, small dense low density lipoprotein

CLC Number: