Gambaran Histopatologik Mukosa Laring Tikus Wistar Yang Dipapar Asap Rokok, Obat Nyamuk Bakar, Dan Kendaraan Bermotor

Abstract

: Air polution is a condition where the air is contaminated with chemicals, particles/matters and other biological substances such as cigarette smoke, mosquito coil smoke, and exhaust gas. Cigarette smoke, mosquito coil smoke and exhaust gas contain substances that can cause inflammation, hyperresponsivity, obstruction, and metaplasia of the respiratory tract. This study aimed to compare the exposure effect of cigarette smoke, mosquito coil smoke, and exhaust gas on the histopathological features of Wistar rat larynx. This was an experimental laboratory study. Subjects were 20 rats divided into 4 groups; Group I, the negative control group, and 3 treatment groups (Group II, III, and IV). Group II was exposed by cigarette smoke, group III was exposed by mosquito coil smoke, and group IV was exposed by exhaust gas. Subjects were put in a modified exposure cage in according with the treatment groups and were exposed for 2 hours per day for 30 days. The results showed that inflammatory cells were found the most in group 4, meanwhile in group II were the least. Metaplasia occured the most in group II, menwhile group III and IV had similar results. In general, group IV showed the worst pathological reaction, followed by group III and group II. Conclusion: Histopathological feature of larynx of wistar rat exposed by exhaust gas showed the worst histopathological changes, followed by mosquito coil smoke exposure group and cigarette smoke group