| Full text | |
| Author(s): |
Miguel Ladino Silva
;
Alexandre Pinto Ribeiro
[2]
;
Germana Alegro Silva
[3]
;
Irma Ximena Barbosa Sanchez
[4]
;
Roberta Renzo
[5]
;
Ricardo Uscategui
[6]
;
Tiago Barbalho Lima
[7]
;
Marcela Aldrovani
[8]
;
José Luiz Laus
[9]
Total Authors: 9
|
| Document type: | Journal article |
| Source: | Arquivos Brasileiros de Oftalmologia; v. 78, n. 3, p. 141-145, 2015-06-00. |
| Abstract | |
ABSTRACT Purposes: To evaluate the effects of nalbuphine 1% on the expression of metalloproteinase 1 (MMP-1), metalloproteinase 9 (MMP-9), and opioid growth factor (OGF) in rabbit corneas after lamellar keratectomy. Methods: The rabbits were assigned to two groups: group nalbuphine (GN, n=30), which received 30 µL of nalbuphine 1% in 4 daily applications at regular intervals until corneal epithelialization, and group control (GC, n=30), which received physiological saline solution under the same conditions adopted in GN. The corneas were collected for immunohistochemistry on days 1, 3, 5, 7, and 9 after lamellar keratectomy, and the expressions of MMP-1, MMP-9, and OGF were analyzed. Results: The expressions of MMP-1 and MMP-9 increased until day 5 of the evaluation, with no differences observed between GN and GC (p>0.05). On days 7 and 9, significant reductions were observed in the expression of MMP-1 (p<0.01), with no differences observed between GN and GC (p>0.05). The expression of OGF was constant in all periods (p>0.05), restricted to the corneal epithelium, and there was no difference between the groups (p>0.05). Conclusions: The study results showed that nalbuphine 1% did not alter the expression patterns of MMP-1, MMP-9, and OGF in rabbit corneas after lamellar keratectomy. (AU) | |