Corneal Healing and Recovery of Ocular Crystallinity with a Dichloromethane Extract of Sedum dendroideum D.C. in a Novel Murine Model of Ocular Pterygium.
Pterygium is a corneal alteration that can cause visual impairment, which has been traditionally treated with the sap of Sedum dendroideum D.C. The pharmacological effect of a dichloromethane extract of S. dendroideum was demonstrated and implemented in a pterygium model on the healing process of corneal damage caused by phorbol esters. In mice of the ICR strain, a corneal lesion was caused by intravitreal injection of tetradecanoylphorbol acetate (TPA). The evolution of the corneal scarring process was monitored with vehicle, dexamethasone, and dichloromethane extract of S. dendroideum treatments by daily ophthalmic administration for fifteen days. The lesions were evaluated in situ with highlighted images of fluorescence of the lesions. Following treatment levels in eyeballs of IL-1α, TNF-α, and IL-10 cytokines were measured. The effective dose of TPA to produce a pterygium-like lesion was determined. The follow-up of the evolution of the scarring process allowed us to define that the treatment with S. dendroideum improved the experimental pterygium and had an immunomodulatory effect by decreasing TNF-α, IL-1α, and maintaining the level of IL-10 expression, without difference with respect to the healthy control. Traditional medical use of S. dendroideum sap to treat pterygium is fully justified by its compound composition.
['Torrescano-De Labra|Luiselva|L|', 'Jiménez-Ferrer|Enrique|E|0000-0002-0783-8274', 'Camacho-Díaz|Brenda Hildeliza|BH|0000-0001-5562-0782', 'Vargas-Villa|Gabriela|G|', 'González-Cortazar|Manases|M|', 'Herrera-Ruiz|Maribel|M|', 'Ávila Reyes|Sandra Victoria|SV|0000-0003-0225-9959', 'Solorza-Feria|Javier|J|', 'Jiménez-Aparicio|Antonio Ruperto|AR|']
D000818:Animals D000893:Anti-Inflammatory Agents D003228:Conjunctiva D008297:Male D008752:Methylene Chloride D051379:Mice D008813:Mice, Inbred ICR D010936:Plant Extracts D011625:Pterygium D031963:Sedum D014945:Wound Healing
Sedum dendroideum D.C. pterygium scar process anti-inflammatory