TY - BOOK AU - Charlotte F. Marasigan. AU - ED - ED - ED - ED - SN - 2 PY - 2017///.46 CY - PB - KW - KW - 2 KW - 0 KW - 6 KW - 20 N1 - Thesis:(B.S. Biology)-Pamantasan ng Lungsod ng Maynila, 2017; 5 N2 - ABSTRACT: The objective of the study was to evaluate the Radioprotective Potential of Leea manillensis syn. guineensis (Abang-abang) extract on gamma irradiated human lymphocytes in vitro using the micronucleus assay. The 100% pure concentration of Leea manillensis syn. guineensis (Abang-abang) extract was diluted into varying concentration of 0.1 mg/ml, 0.2 mg/ml, 0.3 mg/ml, and 0.4 mg/ml which were added to the irradiated blood samples. Based on the experiment, the extract of Leea manillensis syn, guineensis (Abang-abang) reduced the number of the micronuclei in the 1000 binucleated cells. Hoewever only 0.4 mg/ml of Leea manillensis syn. guineenis (Abang-abang) exhibited the greatest radioprotective activity in terms of the reduced micronucleus formation. One-way analysis of variance (ANOVA) was utilized to determine and evaluate if there is a significant difference between the experimental group. It demonstrated that the Leea manillensis syn. guineesis (Abang-abang) extract reduced the number of micronuclei and the highest plant concentration which was 0.4 mg/ml yielded the least number of micronuclei which was 0.4 mg/ml yielded the least number of micronuclei which scored a mean of 33. Furthermore, it was observed and evident that the 0.4 mg/ml plant concentration had no significant difference (p<0.05) from the positive control, oregano extract ER -