Abstract

Background: Purpose : To understand the expression of matrix metalloproteinase (MMP)-8 mRNA gene and tissue inhibitors of metalloproteinase (TIMP)-1 in normal peritoneum tissue and intraperitoneal adhesion tissue after the usage of virgin coconut oil (VCO) and hyaluronate Acid-carboxymethylcellulose (HA-CMC). Methods: The research is using an experimental lab rat “rattus norvegicus strain wistar” which is divided into 3 groups. Laparotomy (pre) is done to gain parietal peritoneum tissue at the lower left quadrant of the abdomen, in order to obtain the expression of mRNA gene MMP-8 and TIMP-1. First group was control group, second group was treated with VCO, while the third group was treated with HA-CMC. After two weeks period, another relaparotomy (post) was held to obtain the adhesion tissue and to run another examination on the MMP-8 mRNA gene expression and TIMP-1. Results: There is a meaningful decrease for the MMP-8 mRNA gene expression in the peritoneum tissue for the control group at the pre and post laparotomy (p<0,001). There is a meaningful over expression of TIMP-1 mRNA gene expression at pre dan post laparatomy of control group (p<0,001). While on the other hand, at the VCO nor HA-CMC group, there is an insignificant increase of MMP-8 mRNA gene expression (p=0,075 and p=0,791) and insignificant decrease of TIMP-1 mRNA gene expression (p=0,015 and p=0,368). Conclusion: The decrease of MMP-8 mRNA gene expression and the increasing of TIMP-1 mRNA gene expression of control group shows a high risk of adhesion incidence. Although it is not statistically meaningful, the result of MMP-8 mRNA and TIMP-1 mRNA gene expression of VCO and HA-CMC indicates that there is a decrease of intraperitoneal adhesion risks, and the nature of VCO anti adhesive compared to HA-CMC.