Ocular immunology and inflammation · 2022
Activation of Conjunctiva-Associated Lymphoid Tissue in Diabetic Patients.
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Liu Yuting, Wang Jingrao, Jin Xin, Wang Yingbin, Shi Yan, Zhang Nan, Zhu Rui, Dong Yueyan, Zhang Hong
Аннотация
PURPOSE: To evaluate changes in conjunctiva-associated lymphoid tissues (CALTs) in patients with type 2 diabetic mellitus (T2DM).
METHODS: Thirty-two patients with T2DM and 32 healthy volunteers underwent comprehensive examinations. In vivo confocal microscopy and Image J were used to observe and evaluate the patients' CALT-related parameters. Conjunctival impression cytology (CIC) samples of the tarsal conjunctiva were collected from the patients, and CD4+ and CD8+ cells were evaluated by immunofluorescence staining.
RESULTS: The diabetes group showed higher diffuse lymphocyte density(p < .001), follicular density(p < .001) and parafollicular lymphocyte density(p < .001). The percentages of CD4+ cells (p < .001) and CD8+ cells (p < .001) in the diabetes group were higher than those in the control group. CALT-related parameters of the diabetic patients with diabetic retinopathy showed higher degrees of activation than those of the diabetic patients without diabetic retinopathy.
CONCLUSIONS: CALT activation is observed in patients with T2DM, and the activation is more obvious in patients with diabetic retinopathy.
TRIAL REGISTRATION NUMBER: Retrospectively registered, ChiCTR2100046030.
METHODS: Thirty-two patients with T2DM and 32 healthy volunteers underwent comprehensive examinations. In vivo confocal microscopy and Image J were used to observe and evaluate the patients' CALT-related parameters. Conjunctival impression cytology (CIC) samples of the tarsal conjunctiva were collected from the patients, and CD4+ and CD8+ cells were evaluated by immunofluorescence staining.
RESULTS: The diabetes group showed higher diffuse lymphocyte density(p < .001), follicular density(p < .001) and parafollicular lymphocyte density(p < .001). The percentages of CD4+ cells (p < .001) and CD8+ cells (p < .001) in the diabetes group were higher than those in the control group. CALT-related parameters of the diabetic patients with diabetic retinopathy showed higher degrees of activation than those of the diabetic patients without diabetic retinopathy.
CONCLUSIONS: CALT activation is observed in patients with T2DM, and the activation is more obvious in patients with diabetic retinopathy.
TRIAL REGISTRATION NUMBER: Retrospectively registered, ChiCTR2100046030.