实用医学杂志 ›› 2025, Vol. 41 ›› Issue (7): 997-1003.doi: 10.3969/j.issn.1006-5725.2025.07.010

• 临床研究 • 上一篇    下一篇

睑板腺功能障碍患者发生蠕形螨感染对临床症状体征及泪液基质金属蛋白酶9含量的影响

魏树瑾,赵金荣,张远龙,褚文娟,沈丹,黄薇伊,田璐   

  1. 天津市眼科医院,天津市眼科学与视觉科学重点实验室 (天津 300020 )
  • 收稿日期:2024-12-26 出版日期:2025-04-10 发布日期:2025-04-23
  • 基金资助:
    河北省中医药管理局科研计划项目(T2025030);天津市医学重点学科(专科)建设项目资助(TJYXZDXK-016A);天津市卫生健康委员会中医中西医结合科研课题资助项目(2023208)

Analysis of influence of demodex infection on clinical symptoms, signs and content of MMP⁃9 in tears of patients with meibomian gland dysfunction

Shujin WEI,Jinrong ZHAO,Yuanlong ZHANG,Wenjuan CHU,Dan SHEN,Weiyi HUANG,Lu TIAN   

  1. Tianjin Eye Hospital,Tianjin Key Lab of Ophthalmology and Visual Science,Tianjin 300020,Tianjin,China
  • Received:2024-12-26 Online:2025-04-10 Published:2025-04-23

摘要:

目的 探讨睑板腺功能障碍患者发生蠕形螨感染对临床症状体征及泪液基质金属蛋白酶9(MMP-9)含量的影响。 方法 选取我院睑板腺功能障碍(MGD)患者80例,其中男21例、女59例,年龄(45.05 ± 15.41)岁,根据蠕形螨感染情况将其分为蠕形螨阳性组(40例)和蠕形螨阴性组(40例),所有患者进行OSDI问卷调查、SPEED问卷调查,睑缘改变评分、角膜荧光素染色评分、泪液MMP-9含量测定、睑板腺开口评分、睑板腺排出能力评分、睑板腺分泌物性状评分、睑板腺缺失情况评分、泪膜破裂时间、Schirmer Ⅰ泪液分泌检查,并比较两组之间指标的差异。 结果 SPEED问卷评分:蠕形螨阳性组、阴性组分别为(7.68 ± 2.80)、(6.28 ± 1.99)分,两组间差异有统计学意义(t = 2.582,P = 0.012);睑缘改变评分:蠕形螨阳性组、阴性组分别为(3.63 ± 1.53)、(2.85 ± 0.77)分,两组间差异有统计学意义(t = 2.861,P = 0.006);角膜荧光素染色评分:蠕形螨阳性组、阴性组分别为(2.25 ± 1.86)、(1.08 ± 1.33)分,两组间差异有统计学意义(t = 3.247,P = 0.002);泪液MMP-9含量:蠕形螨阳性组、阴性组分别为(30.76 ± 43.14)、(12.36 ± 12.10)ng/mL,两组间差异有统计学意义(t = 2.598,P = 0.013)。蠕形螨阳性组与阴性组间睑板腺开口评分、睑板腺排出能力评分、睑板腺分泌物性状评分、睑板腺缺失情况评分、泪膜破裂时间、泪液分泌检查、年龄的比较差异均无统计学意义(P > 0.05)。 结论 睑板腺功能障碍患者发生蠕形螨感染对多项临床症状体征产生影响,尤其是在SPEED问卷评分、睑缘改变、角膜荧光素染色和泪液MMP-9含量方面,其机制涉及炎症反应、炎症因子、细胞损伤和免疫调节失衡等多方面因素。蠕形螨感染可能通过加重炎症反应和症状表现,影响MGD的临床进展。

关键词: 睑板腺功能障碍, 蠕形螨感染, MMP-9, 干眼症

Abstract:

Objective To investigate the effects of Demodex infection on clinical symptoms, signs, and tear MMP?9 levels in patients with meibomian gland dysfunction (MGD). Methods A total of 680 patients with MGD were selected from our hospital, including 162 males and 518 females, with an average age of (45.05 ± 15.41) years old. The patients were divided into two groups based on the presence of Demodex mite infestation: the Demodex positive group (340 cases) and the Demodex negative group (340 cases). All patients underwent evaluations using the OSDI questionnaire, SPEED questionnaire, eyelid margin alteration score, corneal fluorescein staining score, tear MMP?9 measurement, meibomian gland orifice score, meibomian gland excretion ability score, meibomian gland secretion score, meibomian gland loss score, tear film breakup time (BUT), and Schirmer I tear secretion test. The differences in these indicators between the two groups were compared. Results SPEED questionnaire score: Demodex positive group: (7.68 ± 2.80), Demodex negative group: (6.28 ± 1.99). There was a statistically significant difference between the two groups (t = 2.582, P = 0.012). Eyelid margin alteration score: Demodex positive group: (3.63 ± 1.53), Demodex negative group: (2.85 ± 0.77). A statistically significant difference was observed (t = 2.861, P = 0.006). Corneal fluorescein staining score: Demodex positive group: (2.25 ± 1.86), Demodex negative group: (1.08 ± 1.33). There was a statistically significant difference (t = 3.247, P = 0.002). Tear MMP?9 content: Demodex positive group: (30.76 ± 43.14) ng/mL, Demodex negative group: (12.36 ± 12.10) ng/mL. A statistically significant difference was found (t = 2.598, P = 0.013). No statistically significant differences were observed between the Demodex positive and negative groups in meibomian gland orifice score, meibomian gland excretion ability score, meibomian gland secretion score, meibomian gland loss score, BUT, tear secretion examination, and age comparison (P > 0.05). Conclusions Demodex mite infestation in patients with MGD exhibits significant differences across various clinical indicators, notably in SPEED questionnaire scores, eyelid margin alterations, corneal fluorescein staining, and tear MMP?9 levels. These changes are associated with mechanisms including inflammatory responses, cellular damage, and immune dysregulation. Demodex mite infestation may significantly influence the clinical progression of MGD by exacerbating inflammation and symptom severity, potentially playing a crucial role in disease development.

Key words: meibomian gland dysfunction, demodex mite infestation, matrix metalloproteinase-9, dry eye disease

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