ArticleThe ocular surface2019
Clinical signs of meibomian gland dysfunction (MGD) are associated with changes in meibum sphingolipid composition.
Article in The ocular surface, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed, 48 citations in OpenAlex.
- Dry eye disease due to meibomian gland dysfunction treated with Pinggan Yuyin Qingre formula: a stratified randomized controlled trial.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2023Trial
- Sphingolipids in human disease: organ-specific pathologies, chain-length-dependent effects, and translational implications.Journal of translational medicine · 2026Review
- Ly93 Inhibits Sphingomyelin Synthesis and Attenuates Inflammation and Injury in Dry Eye Conjunctival Organoids.Investigative ophthalmology & visual science · 2026Article
- Pinggan Yuyin Qingre formula ameliorates meibomian gland dysfunction through the interleukin-17/nuclear factor kappa B pathway based on network pharmacology and experimental validation.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2026Article
- A Novel Rat Model for Human Meibomian Gland Dysfunction and Ocular Rosacea.Investigative ophthalmology & visual science · 2026Article
- Investigating the Eye as a Biomarker of Gulf War Illness: Sphingolipid and Eicosanoid Composition in Tears and Plasma.Biomolecules · 2025Article
- Sphingomyelin Synthase 2 Deletion Mitigates Oxidative Stress-Induced NF-κB Activation via Lipid Metabolic Reprogramming in Dry Eye Disease.Investigative ophthalmology & visual science · 2025Article
- Oral Supplementation of n-3 Polyunsaturated Fatty Acids (n-3-PUFA) Can Prevent TBI-Induced Visual, Motor, and Emotional Deficits in Mice.Molecular neurobiology · 2025Article
- Do circulating sphingolipid species correlate with age? A study in a normoglycemic biracial population.Biogerontology · 2025Article
- Article
- Discovery of a novel thiophene carboxamide analogue as a highly potent and selective sphingomyelin synthase 2 inhibitor for dry eye disease therapy.Acta pharmaceutica Sinica. B · 2025Article
- Meibomian Gland Shortening Is Associated With Altered Meibum Composition.Investigative ophthalmology & visual science · 2024Article
- Lipids from ocular meibum and tears may serve as biomarkers for depression and post-traumatic stress disorder.Clinical & experimental ophthalmology · 2024Article
- Sphingolipid changes in mouse brain and plasma after mild traumatic brain injury at the acute phases.Lipids in health and disease · 2024Article
- Meibum Lipidomic Analysis in Evaporative Dry Eye Subjects.International journal of molecular sciences · 2024Article
- Efficacy of far infrared functional glasses in the treatment of meibomian gland dysfunction-related dry eye.MedComm · 2024Article
- Plasma Sphingolipid Profile of Healthy Black and White Adults Differs Based on Their Parental History of Type 2 Diabetes.The Journal of clinical endocrinology and metabolism · 2024Article
- Meibomian Gland Dysfunction Is Associated with Low Levels of Immunoglobulin Chains and Cystatin-SN.International journal of molecular sciences · 2023Article
- Alteration of Meibum Lipidomics Profiling in Patients With Chronic Ocular Graft-Versus-Host Disease.Investigative ophthalmology & visual science · 2023Article
- Meibomian Gland Dysfunction Clinical Practice Guidelines.Japanese journal of ophthalmology · 2023Article
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 1 country.
Funding
Abstract
purposeSphingolipids (SPL) play roles in cell signaling, inflammation, and apoptosis. Changes in SPL composition have been reported in individuals with MGD, but associations between clinical signs of MGD and compositional changes in meibum SPLs have not been examined.
methodsForty-three individuals underwent a tear film assessment. Groups were split into those with good or poor quality meibum. Meibum was collected then analyzed with liquid chromatography-mass spectroscopy to quantify SPL classes. Relative composition of SPL and major classes, Ceramide (Cer), Hexosyl-Ceramide (Hex-Cer), Sphingomyelin (SM), Sphingosine (Sph) and Sphingosine 1-phosphate (S1P) was calculated via mole percent.
results22 and 21 individuals were characterized with good and poor quality meibum, respectively. Individuals with poor quality were older (60 ± 8 vs 51 ± 16 years) and more likely to be male (90% vs 64%). Relative composition analysis revealed that individuals with poor meibum quality had SPL composed of less Cer (33.36% vs 49.49%, p < 0.01), Hex-Cer (4.88% vs 9.15%, p < 0.01), and S1P (0.16% vs 0.31%, p = 0.05), and more SM (58.67% vs 38.18%, p < 0.01) and Sph (2.92% vs 2.87%, p = 0.97) compared to individuals with good quality meibum. Assessment of the ratio of Cer (pro-apoptotic) to S1P (pro-survival) showed that individuals with poor meibum quality had a relative increase in Cer (495.23 vs 282.69, p = 0.07).
conclusionMeibum quality, a clinically graded marker of MGD, is associated with compositional changes in meibum sphingolipids. Further investigation of the structural and bioactive roles of sphingolipids in MGD may provide future targets for therapy.
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