Extracellular vesicles in infectious diseases caused by protozoan parasites in buffaloes

Conclusions: EVs from buffaloes infected with Theileria spp. were successfully isolated and characterized. This is an advance in the knowledge of host-parasite relationship that contributes to the understanding of host immune response and theileriosis evasion mechanisms. These findings may pave the way for searching new EVs candidate-markers for a better production of safe biological products derived from buffaloes.
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - Category: Tropical Medicine Source Type: research

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Toxoplasma gondii is an incredibly successful parasite owing in part to its ability to persist within cells for the life of the host. Remarkably, at least 350 host species of T. gondii have been described to date, and it is estimated that 30% of the global human population is chronically infected. The importance of T. gondii in human health was made clear with the first reports of congenital toxoplasmosis in the 1940s. However, the AIDS crisis in the 1980s revealed the prevalence of chronic infection, as patients presented with reactivated chronic toxoplasmosis, underscoring the importance of an intact immune system for pa...
Source: Journal of Clinical Investigation - Category: Biomedical Science Authors: Source Type: research
Publication date: Available online 30 June 2020Source: International Journal for Parasitology: Parasites and WildlifeAuthor(s): Phoebe Rivory, Gregory Brown, Cathy Shilton, Richard Shine, Jan Šlapeta
Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research
Authors: Hosseini SM, Moshrefi AH, Esfandiyari A, Youssefi MR, Nassiri A Abstract According to the last information of IUCN Red List, Eurasian lynx has been endangered since 2010. The population of this animal is heavily affected by infectious parasites. Two adult Eurasian lynx (one male and one female) were illegally hunted and found dead in Parvar National Park, Semnan Province, Iran. After the autopsy, the tissue and parasite samples were collected from gastrointestinal tract and transferred to 70% alcohol. Samples were recovered and identified as Joyeuxiella spp. Sonsino, 1889. Tissue samples were taken from th...
Source: Iranian Journal of Parasitology - Category: Parasitology Tags: Iran J Parasitol Source Type: research
In this report, we will present the symptoms and manifestations of this disease to reduce late detection and exacerbating factors. The patient was a three-year-old girl from Tehran, Iran who had ascites and hepatomegaly. When she was 9 month-old, she was diagnosed as autoimmune hepatitis after liver biopsy and she was treated with immunosuppressive drugs (Azathioprine, prednisolone, and cyclosporine) for 22 months, but later she suffered from fever, pancytopenia, and hepatosplenomegaly. Then a bone marrow biopsy was done for her. There was a large amount of Leishman body in her bone marrow and treatment for Kala-azar was s...
Source: Iranian Journal of Parasitology - Category: Parasitology Tags: Iran J Parasitol Source Type: research
Conclusion: Both domestic and wild rabbits are a potential source of human parasitic zoonosis, and strict hygienic practices are recommended during and after handling rabbits or in case of exposure to their feces. PMID: 32595718 [PubMed]
Source: Iranian Journal of Parasitology - Category: Parasitology Tags: Iran J Parasitol Source Type: research
Authors: Nazari N, Shojaee S, Salimi M, Mohebali M, Ahmadifard N, Hamzavi Y, Zarei Z, Farahmand-Rad R, Bozorgomid A, Heydarian P Abstract Background: Our knowledge of the epidemiology of rodents' parasitic agents in Iran is scarce, although some of these pathogens play an important role in human and veterinary medicine, such as Toxoplasma gondii and Neospora caninum. The purpose of this study was to determine the seroprevalence of Toxoplasma gondii and Neospora caninum in rodents of northwestern Iran between Mar and Dec 2015. Methods: Overall, 157 serum samples from rodents (101 Meriones persicus, 41 Mus muscul...
Source: Iranian Journal of Parasitology - Category: Parasitology Tags: Iran J Parasitol Source Type: research
Conclusion: Most of the raccoons were infected with S. procyonis. The public health importance of zoonotic parasites transmittable through raccoons, the rapid control and decrease of raccoon populations and their distribution in Iran are also discussed. PMID: 32595714 [PubMed]
Source: Iranian Journal of Parasitology - Category: Parasitology Tags: Iran J Parasitol Source Type: research
Conclusion: Upon the importance of pH and temperature in the life cycle of F. hepatica, the current findings can be used for induction of some modifications in pH and preventing the activity of the enzymes for decrement of the efficacy of miracidia penetration into the intermediate snails and egg hatching of this zoonotic parasite. PMID: 32595713 [PubMed]
Source: Iranian Journal of Parasitology - Category: Parasitology Tags: Iran J Parasitol Source Type: research
Conclusion: A. maxima administration overactive the immune system, decreasing the parasitemia, but causing a severe tissue damage. Then, this nutraceutical has a paradoxical effect on intracellular parasitic infections such as Chagas disease. PMID: 32595712 [PubMed]
Source: Iranian Journal of Parasitology - Category: Parasitology Tags: Iran J Parasitol Source Type: research
Authors: Vargas Nava AI, Castro Del Campo N, EnrÍquez Verdugo I, Portillo Loera JJ, Barraza Tizoc CL, Gaxiola Camacho SM Abstract Background: Toxocara spp. is a zoonotic parasite that can infect human; children are the largest group at risk of infection. Therefore, this study aimed to determine the prevalence and viability of Toxocara spp. eggs in the soil of public parks. Methods: Overall, 1180 soil samples from 236 public parks in four sectors of the city of Culiacan were collected at random, between Jun and Dec, 2013. The presence of Toxocara spp. eggs was determined by light microscopy using a centri...
Source: Iranian Journal of Parasitology - Category: Parasitology Tags: Iran J Parasitol Source Type: research
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