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April 1, 2026Lishizhen medicine and materia medica research0 citations

Mechanism of italicErjing Pill/italic (二精丸) in ameliorating diabetic retinal neurodegeneration

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MWMeixia WANGXZXiangduo ZUOXLXiao Liu

Key Points

  • The study aims to explore how Erjing Pill improves diabetic retinal neurodegeneration by activating Müller cells and modulating specific pathways.
  • Induced diabetes in rats using streptozotocin and established different treatment groups.
  • Conducted interventions for 12 weeks with Erjing Pill at low and high doses.
  • Measured serum oxidative stress markers, retinal glutamate, and inflammation factors using ELISA.
  • Assessed retinal tissue for protein expression and mRNA levels through immunofluorescence and PCR methods.
  • Analyzed apoptotic, antioxidant, and autophagic regulatory molecules.
  • Erjing Pill significantly reduced oxidative stress markers (SOD, CAT, GSH) and inflammatory mediators (TNF-α, IL-6, IL-1β).
  • Notable reductions in levels of TXNIP, LC3-II, RAGE, and NF-κB were observed in treated groups.
  • Increased mRNA expression of RAGE, Nrf2, and HO-1 was noted in retinal tissues, indicating enhanced defense mechanisms.

Abstract

目的 探讨二精丸通过激活Müller细胞适度自噬及调节AGEs/RAGE-Nrf2/HO-1通路功能改善糖尿病视网膜神经变性(DRN)的作用机制。 方法 采用链脲佐菌素诱导糖尿病大鼠模型,随机分为正常组(CON)、模型组(MOD)、羟苯磺酸钙组(CDC)、二精丸低/高剂量组(PL-L/H)。干预12周后,酶联免疫吸附测定(ELISA)检测血清氧化应激指标(SOD、MDA、GSH、CAT)、视网膜谷氨酸(GLU)、视网膜炎症因子(TNF-α、IL-6、IL-1β)、玻璃体液中硫氧还原蛋白相互作用蛋白(TXNIP)、微管相关蛋白轻链3II(LC3-II)含量;通过免疫荧光(IF)检测视网膜组织中半胱天冬酶3(Caspase-3)表达与晚期糖基化终末产物(AGEs)沉积情况;蛋白免疫印迹法(Western blot)检测视网膜组织中TXNIP、LC3-II、Caspase-3、AGEs/RAGE通路相关蛋白RAGE和核因子κB(NF-κB)蛋白表达水平;实时荧光定量聚合酶链式反应(RT-qPCR)检测视网膜组织RAGEmRNA、Nrf2mRNA和HO-1mRNA的相对表达;分析凋亡、抗氧化及自噬调控关键分子。 结果 二精丸干预后,PLH组显著下调SOD、CAT和GSH,使MDA、GLU、TNF-α、IL-6、IL-1β、RAGE、NF-κB、TXNIP、Caspase-3、LC3-II 水平降低,AGEs、Caspase-3免疫荧光强度下降,玻璃体液中 TXNIP、LC3-II下调,视网膜组织中RAGE、Nrf2和HO-1的mRNA 相对表达量有上升趋势。 结论 提示二精丸通过双重机制协同改善DRN:调控Müller细胞自噬通量,减轻谷氨酸兴奋性毒性;抑制AGEs/RAGE介导的NF-κB炎症级联,激活Nrf2/HO-1抗氧化防御系统。

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Cite This Study

WANG et al. (2026) studied this question.

synapsesocial.com/papers/69cd7b345652765b073a9073https://doi.org/10.70976/j.1008-0805.szgygy-2026-0503
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

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