Title: Effects of hydatid cyst antigen on Hella cells in vitro

زمینه و هدف: شیوع کیست هیداتیک در بیمارانی که به سرطان مبتلا هستند در مقایسه با جمعیت سالم پایین تر است. در این مطالعه اثر آنتی ژن های دفعی ترشحی، مایع کیست هیداتیک و آنتی ژن خام بر روی رشد سلول های سرطانی هلا بررسی شده است. روش بررسی: در این مطالعه تجربی آنتی ژن های دفعی ترشحی، مایع کیست هیداتیک و آنتی ژن خام از کیست های هیداتید تهیه و فرکشن های آنها با استفاده از سولفات آمونیوم جدا سازی شدند. این آنتی ژن ها به سلول های هلا اضافه شده و به مدت 48 ساعت انکوبه گردیدند. تعداد سلول های زنده و مرده در مقایسه با فلاسک کنترل شمارش شد و با استفاده از نرم افزار آماری SPSS و آزمون Jonckheere–Terpstra Test آنالیز شدند و 05/0P< معنی دار در نظر گرفته شد. . نتایج: در سلول هایی که با فرکشن های آنتی ژن های دفعی ترشحی، مایع کیست هیداتیک و آنتی ژن خام تیمار شده بودند هر سه فرکشن در مقایسه با فلاسک شاهد به صورت معنی داری باعث کاهش رشد سلول های سرطانی شدند و فرکشن آنتی ژن خام به صورت معنی داری باعث مرگ سلول های سرطانی گردید. نتیجه گیری: آنتی ژن های مختلف کیست هیداتیک باعث مرگ سلولی در سلول های هلا می شوند؛ لذا پیشنهاد می گردد در مورد خاصیت ضد سرطانی این آنتی ژن ها تحقیقات بیشتری صورت گیرد

In-vitro effect of hydro-alcoholic extract of Tanacetum parthenium extract on Trichomonas vaginalis

Background: Trichomonas vaginalisis a flagellate parasite causing vaginosis as a common sexual transmitted disease. Metronidazole is the drug of choice for this disease; but due to its side effects it is necessary to search for an alternative drug. In this study, the effect of Tanacetum parthenium on Trichomonas vaginalis was investigated. Methods: Using percolation method, hydro-alcoholic extracts of Tanacetum parthenium was prepared. The extract was dried using vacuum rotary evaporator. Different doses of the extract were added to 8 tubes containing culture medium of Trichomonas vaginalis; metronidazole was added to 1 tube. Finally, 104 Trichomonas vaginalis was added to each tube. Every 24 hours for 3 days, the tubes were seen for count and motion of the parasite under the microscope. Findings: In concentrations of 4, 5, 8 and 10 mg/ml of Tanacetum parthenium, the parasite did not grow. The effect of the extract on Trichomonas vaginalis was similar to the effect of metronidazole. Conclusion: Tanacetum parthenium has efficient effect against Trichomonas vaginalis growth in culture medium; so, this herb can be considered as alternative drug for methronidazole

In-vitro effect of menthe piperita and salvia officinalis extracts on trichomonas vaginalis

Background: Trichomonas vaginalis is a flagellate parasite causing vaginosis, a common sexual transmitted disease. Metronidazole is the drug of choice for this disease but due to its side effects, it is necessary to search for an alternative drug. In this study, the effect of Menthe piperita and Salvia officinalis on Trichomonas vaginalis was investigated. Methods: Hydro-alcoholic extracts of the two herbs were prepared. The extracts were dried using vacuum rotary evaporator. Different concentrations of the extracts in comparison with methronidazole were added in test tubes containing culture medium and the parasite. All test tubes were kept in 37°C for 24 hours. The tubes were then expected for the parasite growth. Findings: In concentrations of 2, 2.5, 4, 5, 8, and 10 mg/ml of Salvia officinalis and in concentrations of 4, 5, 8, and 10 mg/ml of Menthe piperita the parasite did not grow. The effect of the extracts on Trichomonas vaginalis was similar to the effect of metronidazole on the parasite. Conclusion: Salvia officinalis and Menthe piperita had efficient effect against Trichomonas vaginalis growth in culture medium and s,o these two herbs can be considered as alternatives drugs. However, more investigation is recommended

Toxoplasma gondii

Toxoplasma gondii is an important foodborne protozoan that can be transmitted through infected blood containing tachyzoite form of the parasite. The current study aimed to evaluate the prevalence of T. gondii infection and related risk factors among healthy blood donors in Boyer-Ahmad County, southwest Iran. Blood samples were taken from 285 healthy blood donors who voluntarily agreed to participate in this study. Sera and buffy coat were isolated from the blood samples for serological and molecular evaluations. The sera were tested for anti-T. gondii antibodies (both IgG and IgM), using a commercial ELISA kit. The buffy coat of seropositive cases was evaluated for detection of T. gondii DNA by PCR. Moreover, a structured questionnaire, containing socioepidemiological data and possible risk factors, was filled out by each participant during sample collection. Anti-T. gondii antibodies were detected in sera of 48/285 (16.8%) participants. Only two of the subjects (0.7%) were seropositive for both IgG and IgM antibodies. T. gondii DNA was not detected in buffy coat of any of the seropositive cases. Risk factors such as contact with soil (OR, 9.7; 95% CI, 4.9–19.4) and consumption of semicooked meat (OR, 2.5; 95% CI, 1.2–5.03) were statistically associated with seropositivity to T. gondii. The seroprevalence rate of T. gondii antibodies in the blood donors of Boyer-Ahmad County was not high in comparison with other regions in Iran. In this study, consumption of undercooked meats, job, and contact with soil were independent risk factors associated with T. gondii infection, which can be considered as potential sources of T. gondii infection