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Abstract Introduction: Trichomoniasis is considered a common inter-sexual disease caused by trichomonas vaginalis parasite all over the world. Thus, considering the increasing reports of its spread as well as its resistance to metronidazole, it seemed necessary to find a possible herbal drug for the case. Accordingly, An In vitro investigation was carried out to determine the anti trichomonas vaginalis activity of essential oil of Lavandula angyustifolia which is commonly used in traditional medicine. Materials & methods: Parasite collection was accomplished by obtaining contaminated soap of vagina from trichomonal women as well as cultivating the Trichomonas Modified CPLM Medium Base (TMCPLM). Identification was done through direct smear. Essential oil was prepared by hydro-distillation then, the parasites were added to the 10 test-tubes containing TMCPLM, metronidazole, dimetyl sol oxide (DMSO), and essential oil with concentration of (0.1, 0.01, 0.001) to determine the effects of these concentrations in 15 min. interval times for 6 hours. Findings: Findings suggested that Trichomonas vaginalis could remain alive in Trichomona Modified CPLM Medium Base for 48 hours, in presence of metronidazole for 2 hours and TMCPLM for 5 hours. Also, the results indicated that essential oils at concentration of 0.1 and 0.01 were effective at the beginning of inoculation as well as at the concentration of 0.001 hours respectively. Conclusion: The investing authors suggest further investigations to be carried out to check a more exact effect of anti- trichomonas vaginalis activity of Lavandula angyustifolia essential oil under In vivo condition to recommend it as a therapeutic medicine, if positive results proved.

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Introduction: Trichomonas vaginalis infection is one of the most common sexually transmitted diseases worldwide. Moreover, there are reports indicating the increasing rate of refractory trichomoniasis. The aim of this study was to evaluate the efficacy of Ferula gummosa on T. vaginalis. To this end, the chemical compositions of Ferula gummosa essential oil were identified in this study. 
 
Materials & Methods: The essential oil, n-hexane, ethyl acetate, and methanol extract of F. gummosa were prepared and subjected to minimum inhibitory concentration (MIC) and growth inhibitory percent (GI%) determination against two in vitro axenic cultured T. vaginalis isolates in comparison to metronidazole. Moreover, the chemical compositions of F. gummosa essential oil were identified using gas chromatography coupled to a mass spectrometer. Ethics code: IR.UMSHA.REC.1396.885
 
Findings: After 24 h incubation, the MIC of n-hexane, ethyl acetate, and methanol extract was 125 µg/ml and for that of essential oil was 500 µg/ml. The GI% values were 50% and 70% for the extracts at a concentration of 62.5 µg/ml and the essential oil at a concentration of 250 µg/ml, respectively. In addition, the metronidazole MIC values were 12.5 and 6.2 µg/ml for T. vaginalis isolates. According to the results obtained from the chemical identification of F. gummosa essential oil composition, three main compounds of its essential oil include β-Pinene (28.7%), α-Pinene (10.7%), and β-Eudesmol (6.5%).
 
Discussion & Conclusions: The results showed that the compounds in the essential oil and extracts of F. gummosa had a significant antitrichomonal activity. Therefore, it is necessary to isolate these compounds and conduct further research on their effects on T. vaginalis parasites.
 
 

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Introduction: Trichomonas Vaginalis is the most common nonviral sexually transmitted infection in the world. Moreover, it is an important source of reproductive complications and increased risk of HIV transmission, Therefore, it is considered a public health issue. This study aimed to determine the molecular and phylogenetic characteristics of Trichomonas Vaginalis among women in Alborz Province, Iran.
 
Materials & Methods: In this study, 50 positive samples of Trichomonas Vaginalis were collected from vaginal discharge, and after isolating the parasite using the culture medium and extracting DNA, the PCR was performed on the ITS1/5.8S/ITS2 gene. Out of the isolated positive cases, 10 samples were sent for sequencing.
Ethics code: 52/2062
 
Findings: All 50 samples were positive using the wet spread method, culture medium, and PCR. Based on the observed results, the size of the proliferative product of this gene was 372 base pairs. The results of this study were analyzed using phylogenetic tree and neighbor-joining. Furthermore, the possible mutations were investigated in this study.
 
Discussions & Conclusions: The results of this study showed that the ITS1/5.8S/ITS2 gene isolated from these samples was more than 99% similar to the sequences in the gene bank. The sequence of the 5/8SrRNA gene and its surrounding areas of ITS1 and ITS2 showed the low polymorphism of this gene.