中国全科医学 ›› 2024, Vol. 27 ›› Issue (11): 1320-1325.DOI: 10.12114/j.issn.1007-9572.2023.0677

• 论著 • 上一篇    下一篇

正常同型半胱氨酸绝经后中老年女性发生颈动脉斑块风险的阈值研究

卢然1, 吴春艳1, 许海娜1, 安苗苗2, 吴宝勤2, 赖俊2, 冉利梅1,2,*()   

  1. 1.550025 贵州省贵阳市,贵州医科大学公共卫生与健康学院 环境污染与疾病监控教育部重点实验室
    2.550004 贵州省贵阳市,贵州医科大学附属医院健康管理中心
  • 收稿日期:2023-07-20 修回日期:2023-10-28 出版日期:2024-04-15 发布日期:2024-01-23
  • 通讯作者: 冉利梅

  • 作者贡献:卢然、冉利梅进行文章的设计与构思;卢然、吴春艳负责研究的实施,数据分析与结果的解释,撰写论文;卢然、吴春艳、许海娜、安苗苗、吴宝勤、赖俊负责数据收集;吴宝勤、赖俊负责相关技术或材料获取支持;冉利梅负责文章的质量把控及审核、研究所需经费及论文撰写指导,对文章整体负责。
  • 基金资助:
    中国健康促进基金会博士联盟项目; 贵州医科大学附属医院院内课题项目(2021-GMHCT-011); 贵阳市科技计划项目(筑科合同【2022】-4-2-1)

A Threshold Study of Carotid Plaque Risk in Postmenopausal Middle-aged Women with Normal Homocysteine

LU Ran1, WU Chunyan1, XU Haina1, AN Miaomiao2, WU Baoqin2, LAI Jun2, RAN Limei1,2,*()   

  1. 1. The Key Laboratory of Environmental Pollution Monitoring and Diseases Control, Ministry of Education/School of Public Health, Guizhou Medical University, Guiyang 550025, China
    2. Health Management Center, the Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
  • Received:2023-07-20 Revised:2023-10-28 Published:2024-04-15 Online:2024-01-23
  • Contact: RAN Limei

摘要: 背景 颈动脉斑块是临床颈动脉粥样硬化的重要早期预测信号,同型半胱氨酸(Hcy)与颈动脉斑块之间的联系已被公认,但目前对绝经后中老年女性Hcy与颈动脉斑块的相关性尚无明确的定论。 目的 分析绝经后中老年女性Hcy在参考范围对颈动脉斑块发生的风险影响,确定其风险阈值。 方法 选取2020年1月—2023年6月于贵州医科大学附属医院体检中心行健康体检的正常Hcy绝经后中老年女性1 465例(Hcy<15 μmol/L)。收集研究对象一般情况、血液生化指标和颈动脉超声指标,采用多因素Logistic回归分析探讨Hcy与颈动脉斑块的关联。利用受试者工作(ROC)曲线确定正常Hcy绝经后中老年女性发生颈动脉斑块风险的Hcy截断值。 结果 1 465例研究对象中有颈动脉斑块644例(43.96%)。斑块者年龄、收缩压、舒张压、总胆固醇、三酰甘油、Hcy均高于非斑块者,高密度脂蛋白胆固醇低于非斑块者(P<0.05)。多因素Logistic回归分析结果显示,年龄(OR=1.100,95%CI=1.070~1.130)、收缩压(OR=1.021,95%CI=1.012~1.030)、低密度脂蛋白胆固醇(OR=1.232,95%CI=1.077~1.411)、高密度脂蛋白胆固醇(OR=0.568,95%CI=0.387~0.835)和Hcy(OR=1.142,95%CI=1.080~1.207)是绝经后中老年女性发生颈动脉斑块的独立影响因素(P<0.05)。ROC曲线分析显示,Hcy≥11.87 μmol/L是预测正常Hcy绝经后中老年女性患颈动脉斑块的最佳截断值,ROC曲线下面积为0.605,特异度为75.8%,灵敏度为40.4%。 结论 Hcy是绝经后中老年女性发生颈动脉斑块的独立影响因素,且Hcy≥11.87 μmol/L是预测绝经后中老年女性在Hcy正常水平内发生颈动脉斑块的最佳截断值。这一阈值可为临床评估绝经后中老年女性颈动脉斑块风险提供重要参考。

关键词: 颈动脉斑块, 颈动脉狭窄, 绝经后女性, 同型半胱氨酸, 阈值

Abstract:

Background

Carotid plaque is an important early predictive signal of clinical carotid atherosclerosis, the association between homocysteine (Hcy) and carotid plaque is well recognized, however, the correlation between Hcy and carotid plaque in postmenopausal middle-aged women is not established.

Objective

To analyze the impact of Hcy within the normal reference range on the risk of carotid plaque in postmenopausal middle-aged women and determine the risk threshold.

Methods

A total of 1 465 postmenopausal women (Hcy<15 μmol/L) who underwent health examinations at the Affiliated Hospital of Guizhou Medical University between January 2020 and June 2023 were randomly selected. The general information, blood biochemical indicators, and carotid ultrasound indicators of patients were collected, and multivariate Logistic regression analysis was used to explore the association between Hcy and carotid plaque. The cutoff value of Hcy for predicting the risk of carotid plaque in postmenopausal middle-aged women with normal Hcy range was determined by plotting the receiver operating characteristic (ROC) curve.

Results

Six hundred and forty-four (43.96%) out of 1 465 study subjects had carotid artery plaques. Age, systolic blood pressure (SBP), diastolic blood pressure (DBP), total cholesterol (TC), triacylglycerol (TG), and Hcy were higher in the plaque group than in the non-plaque group, high-density lipoprotein cholesterol (HDL-C) was lower than in the non-plaque group (P<0.05). Logistic regression analysis showed that age (OR=1.100, 95%CI=1.070-1.130), SBP (OR=1.021, 95%CI=1.012-1.030), LDL-C (OR=1.232, 95%CI=1.077-1.411), HDL-C (OR=0.568, 95%CI=0.387-0.835) and Hcy (OR=1.142, 95%CI=1.080-1.207) were independent risk factors for carotid plaque in postmenopausal middle-aged women. ROC curve analysis indicated that Hcy≥11.87 μmol/L was the optimal cutoff value for predicting carotid plaque in postmenopausal middle-aged women within the normal Hcy range, with the area under curve (AUC) of 0.605, specificity of 75.8% and sensitivity of 40.4%.

Conclusion

Hcy is an independent risk factor for carotid plaque in postmenopausal middle-aged women, and Hcy≥11.87 μmol/L is the optimal cutoff value for predicting carotid plaque in postmenopausal middle-aged women with normal Hcy. This threshold may provide an important reference for clinical assessment of carotid plaque risk in postmenopausal middle-aged women.

Key words: Carotid plaques, Carotid stenosis, Postmenopause, Homocysteine, Threshold