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Effects of Danqi Huayu Recipe on retinal cell apoptosis in rat model of light-induced retinal damage
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Li HE1, Jia-chao YAN2, Jing-sheng YU2, *
Chinese Journal of Traditional Chinese Medicine | 2026, 51(1) : 260 - 268
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Chinese Journal of Traditional Chinese Medicine | 2026, 51(1): 260-268
Effects of Danqi Huayu Recipe on retinal cell apoptosis in rat model of light-induced retinal damage
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Li HE1, Jia-chao YAN2, Jing-sheng YU2, *
Affiliations
  • 1.Hunan University of Chinese Medicine, Changsha 410208, China
  • 2.the First Hospital of Hunan University of Chinese Medicine, Changsha 410007, China
Published: 2026-01-01 doi: 10.19540/j.cnki.cjcmm.20250829.501
Outline
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This study aims to explore the protective mechanism of Danqi Huayu Recipe against light-induced retinal damage (LIRD) in rats from the perspective of cell apoptosis. Sixty male SD rats were randomly allocated into six groups (n=10): normal group, model group, Ziyin Mingmu Pills group (7.8 g·kg-1), and low-, medium-, and high-dose (3.45, 10.35, and 31.05 g·kg-1, respectively) Danqi Huayu Recipe groups. A self-made light damage chamber was used for the modeling of LIRD in rats of other groups except normal group. Seven days after modeling, each group received corresponding agents by gavage. Normal group and model group were administrated with an equal volume of distilled water by gavage for 14 d. The retinal function was evaluated by electroretinography. Hematoxylin-eosin (HE) staining was employed to observe the retinal morphology and measure the thickness of the outer nuclear layer (ONL). The cell apoptosis was examined by terminal deoxynucleotidyl transferase dUTP nick end labeling. The ultrastructure of the retina was observed by transmission electron microscopy. The protein and mRNA levels of factors related to retinal cell apoptosis were determined by Western blot and RT-qPCR, respectively. The results showed that compared with normal group, model group demonstrated significantly decreased amplitudes of ERG a-waves and b-waves, thinned ONL, increased cell apoptosis rate, damaged retinal ultrastructure, down-regulated protein and mRNA levels of the anti-apoptotic factor (Bcl-2), and up-regulated protein and mRNA levels of pro-apoptotic factors (Caspase-3, Caspase-6, p53, and Bax). Compared with model group, Ziyin Mingmu Pills group and medium-and high-dose Danqi Huayu Recipe group recovered the amplitudes of ERG a-waves and b-waves, increased the ONL thickness, decreased the cell apoptosis rate, and improved the retinal ultrastructure. Meanwhile, they up-regulated protein and mRNA levels of Bcl-2 and down-regulated protein and mRNA levels of pro-apoptotic factors in a dose-dependent manner. In conclusion, Danqi Huayu Recipe protects rats from LIRD by regulating the expression of proteins and genes related to cell apoptosis to reduce light-induced retinal cell apoptosis.

Danqi Huayu Recipe  /  light-induced retinal damage  /  retinal cells  /  apoptosis  /  Caspase-6
Li HE, Jia-chao YAN, Jing-sheng YU. Effects of Danqi Huayu Recipe on retinal cell apoptosis in rat model of light-induced retinal damage[J]. Chinese Journal of Traditional Chinese Medicine, 2026 , 51 (1) : 260 -268 . DOI: 10.19540/j.cnki.cjcmm.20250829.501
Year 2026 volume 51 Issue 1
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doi: 10.19540/j.cnki.cjcmm.20250829.501
  • Receive Date:2025-05-19
  • Online Date:2026-06-25
  • Published:2026-01-01
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  • Received:2025-05-19
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    1.Hunan University of Chinese Medicine, Changsha 410208, China
    2.the First Hospital of Hunan University of Chinese Medicine, Changsha 410007, China
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https://castjournals.cast.org.cn/joweb/zgzyzz/EN/10.19540/j.cnki.cjcmm.20250829.501
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
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种数
Number of
species
占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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