Journal of Traditional Chinese Medicine ›› 2026, Vol. 46 ›› Issue (1): 172-182.DOI: 10.19852/j.cnki.jtcm.2026.01.016
• Original Articles • Previous Articles Next Articles
GAO Yinli1, ZHANG Linhua2, ZHANG Yaqiang1, ZHANG Liuhe3, ZHI Nan1(
), LIAN Haihong1(
)
Received:2025-07-09
Accepted:2025-11-10
Online:2026-02-15
Published:2026-01-28
Contact:
ZHI Nan, Department of Traditional Chinese Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China. Supported by:GAO Yinli, ZHANG Linhua, ZHANG Yaqiang, ZHANG Liuhe, ZHI Nan, LIAN Haihong. Pinggan Yuyin Qingre formula (平肝育阴清热方) ameliorates meibomian gland dysfunction through the interleukin-17/nuclear factor kappa B pathway based on network pharmacology and experimental validation[J]. Journal of Traditional Chinese Medicine, 2026, 46(1): 172-182.
Figure 1 PGYYQR improves MG function and restores MG morphology in MGD mice A: slit-lamp observation of each group after modeling. obstruction of MG orifices (indicated by the purple arrow), increased viscosity of meibum (indicated by the red arrow); B: slit-lamp observation of each group after intervention with PGYYQR; C: MG orifice obstruction score (n = 10); D: meibum quality score (n = 10); E: histological changes of MG tissues with HE staining (× 100); F: lipid deposition in MG tissues with ORO staining (× 100 ); A1, B1, E1, F1: control group; A2, B2, E2, F2: model group; A3, B3, E3, F3: PGYYQR group. Control group: no treatment; model group: treated with A939572 solution (10 mg/kg); PGYYQR group: treated with A939572 solution (10 mg/kg) and PGYYQR decoction. PGYYQR: Pinggan Yuyin Qingre formula; MG: meibomian gland; MGD: meibomian gland dysfunction; HE: hematoxylin and eosin; ORO: oil red o; ac: acinar cell; du: ductal lumen. Data are presented as mean ± standard deviation. Post-intervention comparisons were analyzed by the Wilcoxon rank-sum test due to uniform values (standard deviation = 0) in the model group. aP < 0.05, bP < 0.01 vs model group
Figure 2 PGYYQR alleviates the inflammatory response in MGD mice A: levels of inflammatory cytokines in ocular serum measured by ELISA (n = 10); A1: IL-1β levels; A2: IL-6 levels; A3: TNF-α levels; B: histological observation of inflammatory changes in MG tissues with HE staining (× 400). Abnormal MG duct wall thickening (indicated by the black arrow), inflammatory cell infiltration (indicated by the red arrow); B1: control group; B2: model group; B3: PGYYQR group. Control group: no treatment; model group: treated with A939572 solution (10 mg/kg); PGYYQR group: treated with A939572 solution (10 mg/kg) and PGYYQR decoction. PGYYQR: Pinggan Yuyin Qingre formula; MGD: meibomian gland dysfunction; ELISA: enzyme-linked immunosorbent assay; IL-1β: interleukin-1β; IL-6: interleukin-6; TNF-α: tumor necrosis factor-α; MG: meibomian gland; HE: hematoxylin and eosin. Data are presented as mean ± standard deviation. Comparisons between groups were conducted using one-way analysis of variance with Tukey’s post hoc test. aP < 0.01 vs control group; bP < 0.01, cP < 0.05 vs model group.
Figure 3 Functional enrichment analysis of the potential targets of PGYYQR for the treatment of MGD A: GO enrichment analysis; B: KEGG enrichment analysis. PGYYQR: Pinggan Yuyin Qingre formula; MGD: meibomian gland dysfunction; GO: gene ontology; BP: biological process; CC: cellular component; MF: molecular function; KEGG: kyoto encyclopedia of genes and genomes.
Figure 4 PGYYQR suppresses the IL-17/NF-κB axis and reduces oxidative stress A: IL-17 levels in ocular serum measured by ELISA (n = 10); B: protein expression levels of p-NF-κB p65, NF-κB p65 in MG tissues (n = 3); B1: protein band; B2: quantitative analysis of p-NF-κB p65 protein expression normalized to GAPDH; B3: quantitative analysis of NF-κB p65 protein expression normalized to GAPDH; C: mRNA expression of NF-κB p65 in MG tissues (n = 3); D: ROS fluorescence intensity in conjunctival tissues (n = 10). Control group: no treatment; model group: treated with A939572 solution (10 mg/kg); PGYYQR group: treated with A939572 solution (10 mg/kg) and PGYYQR decoction. PGYYQR: Pinggan Yuyin Qingre formula; IL-17: interleukin-17; NF-κB: nuclear factor kappa B; ELISA: enzyme-linked immunosorbent assay; p-NF-κB p65: phospho-nuclear factor kappa B p65; MG: meibomian gland; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; ROS: reactive oxygen species. Data are presented as mean ± standard deviation. Comparisons between groups were conducted using one-way analysis of variance with Tukey’s post hoc test. aP < 0.01, cP < 0.05 vs control group; bP < 0.01, dP < 0.05 vs model group; eP > 0.05 between groups.
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