Evidence mapPaperPMID 40119947Full record

ArticleInternational ophthalmology2025

Evaluation of tear and serum clusterin levels in thyroid ophthalmopathy patients.

Mehmet Balbaba, Fatih Ulaş, Zehra Nur Nahırsüren Tarım, Hakan Yıldırım, Faruk Kılınç, Nevin İlhan, Mehmet Canleblebici, Murat Erdağ, Mithat Mızrak

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Article in International ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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9 authors.

Mehmet BalbabaDepartment of Ophthalmology, Faculty of Medicine, Fırat University, Elazığ, Turkey.
Fatih UlaşDepartment of Ophthalmology, Faculty of Medicine, Abant Izzet Baysal University, Bolu, Turkey.
Zehra Nur Nahırsüren TarımDepartment of Ophthalmology, Faculty of Medicine, Fırat University, Elazığ, Turkey.
Hakan YıldırımDepartment of Ophthalmology, Faculty of Medicine, Fırat University, Elazığ, Turkey.
Faruk KılınçDepartment of Endocrinology, Faculty of Medicine, Fırat University, Elazığ, Turkey.
Nevin İlhanDepartment of Biochemistry, Faculty of Medicine, Fırat University, Elazığ, Turkey.
Mehmet CanleblebiciDepartment of Ophthalmology, Kayseri State Hospital, Kayseri, Turkey. mehmetcl@hotmail.com.
Murat ErdağDepartment of Ophthalmology, Faculty of Medicine, Fırat University, Elazığ, Turkey.
Mithat MızrakDepartment of Endocrinology, Faculty of Medicine, Fırat University, Elazığ, Turkey.

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6 · The paper itself

Abstract

purposeTo evaluate tear and serum clusterin levels in thyroid eye disease (TED) patients. MATERIAL AND

methodsThe study included 21 patients with Graves disease with TED, 20 patients with Graves disease without TED, and 21 healthy control subjects matched for sex and age. Clusterin and lysozyme C levels of tear and serum were detected using enzyme-linked immunosorbent assays. In addition, free triiodothyronine, free thyroxine, thyroid stimulating hormone (TSH), and autoantibody (anti thyroid peroxidase, anti thyroglobulin and TSH receptor antibody) levels were measured in all groups.

resultsThe mean concentrations of tear clusterin and lysozyme C levels were 15.99 ± 4.07 ng/mL and 54.54 ± 27.58 ng/mL in Graves patients with TED, 26,28 ± 15,98 ng/mL and 50,13 ± 46,59 ng/mL in Graves patients without TED, and 55,53 ± 45,99 ng/mL and 44,86 ± 27,42 ng/mL in control subjects, respectively. The mean concentrations of serum clusterin and lysozyme C levels were 23.15 ± 4.25 ng/mL and 93.14 ± 51.38 ng/mL in Graves patients with TED, and 26.73 ± 15.93 ng/mL and 74.22 ± 55.73 ng/mL in Graves patients without TED, and 27.47 ± 12.83 ng/mL and 76.13 ± 65.24 ng/mL in control subjects, respectively. The tear clusterin levels showed significant differences in Graves patients with and without TED than in the control group (p < 0.001). In Graves patients with TED group, tear clusterin levels were lower than in Graves patients without TED, however this difference was not statistically significant (p = 0.431). There was a statistically significant low-grade correlation between tear clusterin and clinical activity score, retraction, and Hertel measurements (range of r value: -0.299 and -0.279, and range of p values:0.024-0.034).

conclusionThe tear clusterin levels were decreased in Graves patients with and without TED. The results suggest that a local reduction in the amount of clusterin may play an important role in the pathogenesis of Graves disease and might be used as a local biomarker.

Indexed as

ClusterinGraves OphthalmopathyTearsAdultBiomarkersCase-Control StudiesEnzyme-Linked Immunosorbent AssayFemaleHumansMaleMiddle AgedBiomarkersClusterinClusterinLysozymeTearThyroid autoantibodiesThyroid eye disease

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.