Toxoplasmosis is one of the most common parasitic diseases worldwide. It is estimated that approximately one-third of the world's population is latently infected. Infection generally occurs via oral the route and maternal transmission. Damage of the central nervous system is one of the most serious consequences of congenital toxoplasmosis. Moreover, recent investigations proposed that acute and sub-acute congenital toxoplasmosis as well as latent toxoplasmosis during pregnancy; play various roles in the etiology of different neuropsychiatric disorders in mothers and their offspring. This paper reviews new findings about the role of latent toxoplasmosis in the etiology of various neuropsychiatric disorders in mothers and their offspring.
The prevalence of bovine is high in the most regions of the world. It can be a human health problem due to consumption of raw or under cooked hamburgers or other bovine meat products. This study was carried out to investigate the prevalence and species identification of among of hamburgers, using PCR-RFLP methods in Kashan, central Iran. Overall 200 raw industrial hamburgers samples with at least 60% meat were randomly collected from nine different brands in Kashan, central Iran. The genomic DNA was extracted and a PCR-RFLP method was used to amplify an approximately 900 bp fragment at the 18S rRNA(SSU) gene, restriction enzyme was used for species identification. The results showed that 58 (29%) of 200 tested hamburger samples were infected to spp. The prevalence rate was 31.25 and 26.9% in the hamburgers with 90 and 60-75% meat, respectively. According to PCR-RFLP analysis, 43 (74.1%) of the 58 isolates were , 12 (20.7%) showed co-infection to and , 2 (3.5%) was mixed infected to and , 1 (1.7%) showed the pattern of mix infection to three species. This study revealed one-third of industrial hamburger were infected to or mixed infection of with other bovine sarcocytosis. To prevent cattle infection, the possible ingestion of the disposal sporocyst stage from dogs must be eliminated. Although in this study, the prevalence of was low and cannot be considered as a major zoonosis, it should be recommended avoiding eating under cooked hamburger and other bovine meat products to prevent human infection.
Aim:Fasciolosis and dicrocoeliosis are important parasitic diseases worldwide, causing significant financial losses due to decrease in production and viscera condemnation in animals. We performed the current research to assess the epidemiology of these infections and determine their significance from an economic perspective in Arak, Iran.Materials and Methods:In total, we evaluated 118,463 sheep, 207,652 goats, and 43,675 cattle through necropsic analysis at the slaughterhouses. The average weight of sheep, goat, and cattle liver was 1000, 900, and 5000 g, respectively. The average price of liver in the market was 8 USD/kg. Moreover, the elimination of fundamental nutrients and vitamins was evaluated in infected livers. The prevalence of fasciolosis and dicrocoeliosis was determined. Analysis of variance test was applied for the statistical analysis, and the significance level was <0.05.Results:In total, Fasciola hepatica and Dicrocoelium dendriticum were detected in 0.56% (confidence interval CI, 0.54-0.59) and 0.77% (CI, 0.75-0.81) of the animals, respectively (p=0.1). The annual economic loss attributed to fasciolosis and dicrocoeliosis was 26698.4 and 30479.2 USD, respectively. The total economic loss was 10,880, 9079.2, and 10,520 dollars in sheep, cattle, and goats, respectively. On the other hand, financial loss resulting from fasciolosis was 7160, 6098.4, and 13,440 dollars in sheep, goats, and cattle, respectively. In addition, economic loss due to dicroceliasis was 10,880, 9079.2, and 10,520 dollars, respectively.Conclusion:Overall, fasciolosis and dicrocoeliosis in Iran always remain common in sheep, goats, and cattle that afford major economic loss of all the country also exist in Arak province. The present study could provide basic information for further examination of liver fluke infections in Iran.
Trichomoniasis is a sexually transmitted disease (STD) caused by a tiny parasite called Trichomonas vaginalis. Metronidazole is used as routine treatment of disease. Some reports have confirmed the potential carcinogenic and teratogenic effects of this drug on fetus and indication of drug resistance. Verbascum thapsus belongs to the family of Scorphulariaceae. Its antiinflammatory properties, disinfectant and skin healing effects are well known. This plant has been used to treat diarrhea and genitourinary infection in traditional medicine. Effects of different concentrations of the Verbascum thapsus extract were tested on the growth and motility of T. vaginalis trophozoites. To evaluate the toxicity of extract, their effects on mice macrophages were measured by MTT([3-(4,5-dimethyl thiazolyl-2)- 2,5-diphenyle tetrazolium bromide ])assay. In this experimental study the effect of Verbascum thapsus ethanol extract on induction apoptosis in T. vaginalis was determined by Flow Cytometry. Results were analyzed by Flow Jo software and the degree of apoptosis was determined. Toxicity percentage of 25-800 μg/ml concentrations of Verbascum thapsus alcoholic extract for mice macrophages was observed between 0.17-0.25 after 12 hours and they were between 0.25-0.42 and0.45-0.95 after 24 and 48h respectively. IC50 (inhibitory concentration, 50%) of Verbascum thapsus ethanol extract and metronidazole after 24h was 39.17 and 0.0326 μg/ml respectively. Flow cytometry results showed the percent of apoptosis following treatment of trophozoites with different concentrations of Verbascum thapsus ethanol extract (25, 50,100,200,400 μg/ml), were 20.7, 37.04, 47.5, 62.72 and 86.35 respectively, while in control group was 2.9. According to this study, Verbascum thapsus extract induces programmed death in T. vaginalis. It is recommended that Verbascum thapsus extract can be considered as a suitable choice for Medical Studies.
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