Related Experiment Videos
[New stimulants of corneal reparative regeneration]
Abstract:
The efficacy of corneregel, a drug containing pantothenic acid, a component of coenzyme A, in healing of corneal wounds has been evaluated. The study was carried out on 19 rabbits (38 eyes) with standard corneal defect made with a 5-mm trephine for lamellar transplantation of the cornea, divided into 2 groups: 1) instillations of corneregel (10 eyes) and 0.25% levomycetin solution (10 eyes) and 2) 20% solcoseryl gel (9 eyes) and 0.25% levomycetin (9 eyes). Time course of changes were evaluated by biomicroscopy (fluorescent test), histologically (hematoxylin-eosin staining), and immunohistochemically after 1, 2, 4, 7, 30, and 90 days. Proliferative activity was studied by expression of the proliferating cell nuclear antigen and the migration capacity of cells by expression of alpha-smooth muscle actin. The terms of epithelialization were as follows: corneregel 10 +/- 7 h, 20% solcoseryl gel 108 +/- 10 h, levomycetin 124 +/- 6.93 h. Earlier epithelialization in the corneregel group was apparently due to increased expression of alpha-smooth muscle actin and increase in the cell migration capacity. Hence, corneregel is recommended for practical use as a stimulant of reparative regeneration of the cornea.
Insights
Corneregel, containing pantothenic acid, significantly accelerates corneal wound healing in rabbits. This drug promotes faster epithelialization by enhancing cell migration, making it a recommended treatment for corneal regeneration.
Area of Science:
- Ophthalmology
- Regenerative Medicine
- Pharmacology
Background:
- Corneal wound healing is a complex process involving epithelialization and stromal repair.
- Pantothenic acid, a component of coenzyme A, plays a role in cellular metabolism and repair processes.
- Existing treatments for corneal defects have varying efficacies and timelines for recovery.
Purpose of the Study:
- To evaluate the efficacy of Corneregel in promoting corneal wound healing.
- To compare Corneregel's healing effects against Solcoseryl gel and Levomycetin.
- To investigate the mechanisms underlying Corneregel's regenerative properties.
Main Methods:
- A standard corneal defect model was created in rabbit eyes.
- Eyes were treated with Corneregel, Solcoseryl gel, or Levomycetin solution.
- Healing was assessed via biomicroscopy, fluorescent testing, histology, and immunohistochemistry, analyzing cell proliferation (PCNA) and migration (alpha-SMA).
Main Results:
- Corneregel demonstrated significantly faster epithelialization times (10 ± 7 hours) compared to Solcoseryl gel (108 ± 10 hours) and Levomycetin (124 ± 6.93 hours).
- Enhanced expression of alpha-smooth muscle actin in the Corneregel group indicated increased cell migration capacity.
- Histological and immunohistochemical analyses supported Corneregel's role in stimulating corneal repair.
Conclusions:
- Corneregel effectively accelerates corneal epithelialization and promotes reparative regeneration.
- The drug's efficacy is attributed to enhanced cell migration, likely mediated by increased alpha-smooth muscle actin expression.
- Corneregel is recommended for clinical use to stimulate corneal tissue repair.