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睑板腺功能障碍和泪膜结构中的人睑板腺和泪液衍生的胆固醇和蜡酯。

Human meibum and tear film derived cholesteryl and wax esters in meibomian gland dysfunction and tear film structure.

机构信息

Department of Optometry and Vision Science, School of Optometry, University of Alabama at Birmingham, Birmingham, AL, USA.

Centre for Ocular Research & Education, School of Optometry & Vision Science, University of Waterloo, Waterloo, Ontario, Canada; Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Hong Kong.

出版信息

Ocul Surf. 2022 Jan;23:12-23. doi: 10.1016/j.jtos.2021.10.009. Epub 2021 Nov 11.


DOI:10.1016/j.jtos.2021.10.009
PMID:34774809
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9875797/
Abstract

PURPOSE: This study evaluated the presence and roles of cholesteryl esters (CEs) and wax esters (WEs) from human tear film and meibum in meibomian gland dysfunction (MGD). METHODS: Out of 195 enrolled subjects, 164 and 179 subjects provided tear and meibum samples, respectively. Subjects were classified into normal, asymptomatic MGD, MGD, and mixed (MGD & aqueous deficient). The precorneal tear film (PCTF) thinning rate (evaporation) was measured using optical coherence tomography. Lipids extracted from tear and meibum samples were infused into a SCIEX 5600 TripleTOF mass spectrometer. CE and WE intensities quantified with Analyst 1.7 TF and LipidView 1.3 were compared across disease groups in MetaboAnalyst 5.0 and correlated with PCTF thinning rates. RESULTS: The numbers of unique CEs and WEs identified in the samples were 125 and 86, respectively. Unsupervised Principal Component (PC) analysis and supervised Partial Least Square Discriminant analysis exhibited little separation among groups for both CEs and WEs in tears and meibum. Spearman's correlation analyses showed no association between either the first or second PC scores with PCTF thinning rates. CONCLUSION: The abundances of human PCTF and meibum-derived CEs and WEs were independent of MGD disease status and PCTF thinning (evaporation). CEs and WEs alterations do not contribute to alterations in tear film dynamics in MGD, such as has been demonstrated by the (O-acyl) ω-hydroxy fatty acids (OAHFAs).

摘要

目的:本研究评估了人泪膜和睑脂中的胆固醇酯(CEs)和蜡酯(WEs)在睑板腺功能障碍(MGD)中的存在和作用。

方法:在 195 名入组受试者中,有 164 名和 179 名受试者分别提供了泪液和睑脂样本。受试者被分为正常、无症状 MGD、MGD 和混合(MGD 和水性缺乏)。使用光学相干断层扫描测量了角膜前泪膜(PCTF)的变薄率(蒸发)。从泪液和睑脂样本中提取的脂质被注入 SCIEX 5600 TripleTOF 质谱仪。使用 Analyst 1.7 TF 和 LipidView 1.3 定量分析 CE 和 WE 强度,并在 MetaboAnalyst 5.0 中比较不同疾病组之间的差异,并与 PCTF 变薄率相关。

结果:在样本中鉴定出的独特 CE 和 WE 数量分别为 125 和 86。非监督主成分(PC)分析和监督偏最小二乘判别分析显示,无论是在泪液还是睑脂中,CEs 和 WEs 在各组之间的分离都很小。Spearman 相关分析显示,第一或第二 PC 评分与 PCTF 变薄率之间均无关联。

结论:人 PCTF 和睑脂来源的 CEs 和 WEs 的丰度与 MGD 疾病状态和 PCTF 变薄(蒸发)无关。CEs 和 WEs 的改变不会导致 MGD 中泪膜动力学的改变,如(O-酰基)ω-羟基脂肪酸(OAHFAs)所证明的那样。

相似文献

[1]
Human meibum and tear film derived cholesteryl and wax esters in meibomian gland dysfunction and tear film structure.

Ocul Surf. 2022-1

[2]
Human Meibum and Tear Film Derived (O-Acyl)-Omega-Hydroxy Fatty Acids as Biomarkers of Tear Film Dynamics in Meibomian Gland Dysfunction and Dry Eye Disease.

Invest Ophthalmol Vis Sci. 2021-7-1

[3]
Human meibum and tear film derived (O-acyl)-omega-hydroxy fatty acids in meibomian gland dysfunction.

Ocul Surf. 2021-7

[4]
Human precorneal tear film and lipid layer dynamics in meibomian gland dysfunction.

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[5]
Mass Spectrometric Analysis of Meibomian Gland Lipids.

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[6]
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[7]
Comparison of Collection Methods for the Measure of Human Meibum and Tear Film-Derived Lipids Using Mass Spectrometry.

Curr Eye Res. 2018-10

[8]
Relationship Between Human Meibum Lipid Composition and the Severity of Meibomian Gland Dysfunction: A Spectroscopic Analysis.

Invest Ophthalmol Vis Sci. 2023-7-3

[9]
Human tear film and meibum. Very long chain wax esters and (O-acyl)-omega-hydroxy fatty acids of meibum.

J Lipid Res. 2009-6-17

[10]
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Exp Eye Res. 2013-5-1

引用本文的文献

[1]
Thermotropic phase transitions of binary mixtures of wax and cholesteryl esters relevant to tears.

Biochem Biophys Rep. 2025-7-1

[2]
Impact of Hyperglycemia on Tear Film and Meibomian Gland Dysfunction: A Cross-Sectional Study.

Diabetes Metab Syndr Obes. 2025-2-3

[3]
Exploring the Effects of Polysaccharides on the Fecal Microbiota and Fecal Metabolites of Fattening Pigs Based on 16S rDNA and Metabolome Sequencing.

Animals (Basel). 2025-1-9

[4]
Meibomian gland lipid alterations and ocular surface sequela in Awat2 knockout murine model of meibomian gland dysfunction and evaporative dry eye disease.

Ocul Surf. 2024-10

[5]
Nanomedicines for Dry Eye Syndrome: Targeting Oxidative Stress with Modern Nanomaterial Strategies.

Molecules. 2024-8-7

[6]
Meibum Lipidomic Analysis in Evaporative Dry Eye Subjects.

Int J Mol Sci. 2024-4-27

[7]
Impact of Dyslipidemia on Tear Film and Meibomian Gland Dysfunction: A Cross-Sectional Study of the Interplay between Serum Lipid Profile and Ocular Surface Health.

J Ophthalmol. 2024-4-30

[8]
Relationship Between Human Meibum Lipid Composition and the Severity of Meibomian Gland Dysfunction: A Spectroscopic Analysis.

Invest Ophthalmol Vis Sci. 2023-7-3

[9]
Dry Eye Disease Associated with Meibomian Gland Dysfunction: Focus on Tear Film Characteristics and the Therapeutic Landscape.

Ophthalmol Ther. 2023-6

[10]
The role of sphingolipids in meibomian gland dysfunction and ocular surface inflammation.

Ocul Surf. 2022-10

本文引用的文献

[1]
Alteration in meibum lipid composition and subjective symptoms due to aging and meibomian gland dysfunction.

Ocul Surf. 2022-10

[2]
Human Meibum and Tear Film Derived (O-Acyl)-Omega-Hydroxy Fatty Acids as Biomarkers of Tear Film Dynamics in Meibomian Gland Dysfunction and Dry Eye Disease.

Invest Ophthalmol Vis Sci. 2021-7-1

[3]
Human meibum and tear film derived (O-acyl)-omega-hydroxy fatty acids in meibomian gland dysfunction.

Ocul Surf. 2021-7

[4]
MetaboAnalyst 5.0: narrowing the gap between raw spectra and functional insights.

Nucleic Acids Res. 2021-7-2

[5]
Human precorneal tear film and lipid layer dynamics in meibomian gland dysfunction.

Ocul Surf. 2021-7

[6]
Depletion of Cholesteryl Esters Causes Meibomian Gland Dysfunction-Like Symptoms in a -Null Mouse Model.

Int J Mol Sci. 2021-2-4

[7]
Saturation of cholesteryl esters produced by human meibomian gland epithelial cells after treatment with rosiglitazone.

Ocul Surf. 2021-4

[8]
Lacritin proteoforms prevent tear film collapse and maintain epithelial homeostasis.

J Biol Chem. 2021

[9]
Interactions of polar lipids with cholesteryl ester multilayers elucidate tear film lipid layer structure.

Ocul Surf. 2020-10

[10]
Lipid polarity gradient formed by ω-hydroxy lipids in tear film prevents dry eye disease.

Elife. 2020-4-7

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