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Abstract Title:

The Restorative Effect of Red Guava (L.) Fruit Extract on Pulmonary Tissue of Rats () Exposed to Cigarette Smoke.

Abstract Source:

Vet Med Int. 2021 ;2021:9931001. Epub 2021 Jun 1. PMID: 34123347

Abstract Author(s):

Dewa Ketut Meles, Imam Mustofa, Wurlina Wurlina, Suherni Susilowati, Suzanita Utama, Niluh Suwasanti, Desak Ketut Sekar Cempaka Putri

Article Affiliation:

Dewa Ketut Meles

Abstract:

Since the damage to alveolar tissue due to cigarette smoke exposure (CSE) is lipid peroxidation, antioxidant treatment is needed. The red guava (L.) fruit contains antioxidants derived from quercetin, lycopene, and vitamin C. This study aimed to determine the effect of red guava fruit extract (RGFE) on the alveolar tissue of rats exposed to cigarette smoke. The 25 rats () were divided into five groups. The control and T0 groups were only administered placebo, while T1, T2, and T3 groups were orally administered RGFE of 18.9, 37.8, and 56.7 mg/kg body weight daily for 44 days. The CSE dose of 20 suctions daily was conducted on T0, T1, T2, and T3 groups on days 15-44. On day 45, all rats were sacrificed for serum collection and histopathological lung slides with eosin-nigrosin staining. The result showed that CSE caused an increase (<0.05) in malondialdehyde (MDA) levels, cell death, apoptosis, and necrosis percentages, congestion and thickening of alveolar septum tissue, and reduction in the alveolar diameter and alveolar number. Administration of RGFE suppressed those effects, and the highest dose of RGFE (T3) restored (>0.05) MDA levels, percentage of apoptotic and necrosis, alveolar septal thickening, and alveolar diameter. However, the percentages of cell death, alveolar congestion, and the alveolar number were still worse (<0.05) than in normal rats. It could be concluded that RGFE has proved relief and restoration of the alveolar tissue of rats exposed to cigarette smoke.

Study Type : Animal Study

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