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PubMedID: 20842509 Propolis is a honeybee product with a very complex chemical composition and various pharmacological properties. This study was aimed to investigate antileishmanial activities of "Bursa" and "Hatay" propolis samples against Leishmania infantum and Leishmania tropica strains. Propolis samples were analysed with the gas chromatography-mass spectrometry technique. Promastigotes were incubated in Roswell Park Memorial Institute culture medium in the absence and presence of several concentrations (50, 100, 250, 500, 750, and 1,000 µg/mL) of each propolis sample. The viability and cell morphology of promastigotes in each concentration were examined after 24, 48, 72, and 96 h of incubation. The growth of leishmania parasites was significantly suppressed in the presence of 500, 750, and 1,000 µg/mL of Hatay propolis. Bursa propolis was found to be efficient in inhibiting the growth of leishmania promastigotes in culture media at these concentrations, 250, 500, 750, and 1,000 µg/mL. Thus, the in vitro results showed that the Hatay and Bursa propolis samples decreased significantly the proliferation of L. infantum and L. tropica parasites (p

Propolis (bee glue) is a natural resinous hive product, collected from various plant sources. It has attracted much attention as a useful substance applied in medicine due to its pharmacological activities. It was aimed to investigate the in vitro effects of an ethanolic extract of Adana propolis samples on the growth of Leishmania tropica. Parasite cells were treated with five concentrations (25, 50, 100, 50, 500, and 750 microg/ml) of the propolis. The number of promastigotes in each concentration was calculated using a hemocytometer slide at 24, 48, and 72 h after being harvested. In the experiments, it was determined that the concentrations up to 100 mug/ml of the propolis did not exhibit antileishmanial activity against the parasites cells. At these concentrations, there was no changes in terms of morphologically. In addition, there was no statistically significant difference in terms of cell count between control and these three groups (p0.05). However, in culture media containing the propolis samples at 250, 500, and 750-microg/ml concentrations, statistically significant differences in cell counts were observed, as compared to the control group (p0.05). Our results demonstrate that ethanolic extracts of Adana propolis samples reduce the proliferation of L. tropica parasites significantly.