The malaria parasite Plasmodium falciparum utilizes molecules present on the surface of uninfected red blood cells (RBC) for rosette formation, and a dependency on ABO antigens has been previously shown. In this study, the antirosetting effect of immune sera was related to the blood group of the infected human host. Sera from malaria-immune blood group A (or B) individuals were less prone to di...

Theileria buffeli, generally a benign parasite of cattle, has been reported in animals from Texas, Missouri and North Carolina. To date, there have been no reports of the parasite in cattle residing in northern portions of the US. An 8-year-old cow (Maine Anjou x Angus cross-bred) in Michigan presented with hemoglobinuria and a packed cell volume of 9. Blood films stained with Giemsa showed num...

We have isolated piroplasms from a patient who developed the first case of human babesiosis in Japan by using NOD/shi-scid mice whose circulating erythrocytes (RBCs) had been replaced with human RBCs (hu-RBC-SCID mice). Following inoculation of the patient's blood specimen into hu-RBC-SCID mice, parasites proliferated within the human RBCs in the mice, resulting in a high level of parasitemia. ...

Changes in population allele frequencies may be driven by several forces, including selection and drift, and are revealed only by sampling over many generations. Such studies, however, are rare for protist parasites. Microsatellite allele frequencies for 4 loci were followed in a population of Plasmodium mexicanum, a malaria parasite of lizards in California USA at 1 site from 1978 to 2010. Rap...

Malaria parasite infection in anopheline mosquitoes is limited by inflammatory levels of nitric oxide metabolites. To assess the mechanisms of parasite stasis or toxicity, we investigated the biochemistry of these metabolites within the blood-filled mosquito midgut. Our data indicate that nitrates, but not nitrites, are elevated in the Plasmodium-infected midgut. Although levels of S-nitrosothi...

In Indonesia, pigeon is one who is familiar with humans, beside can be consumed, usually maintained for hobby or pleasure. One of the parasitic worms that infect the pigeon’s kidneys was Paratanaisia bragai (P. bragai). That worm can cause pathological changes in the renal pigeons. Evaluation of renal function can be done through checking of serum creatinine and urea. This study was conducted t...

of terms of the Creative Commons Attribution Non-Commercial License which permits unrestricted noncommercial use, distribution, and reproduction in any medium provided article is properly cited. First described by Carlos Justiniano Ribeiro Chagas (1879-1934) in 1909, Chagas disease (CD) or American trypanosomiasis is caused by the protozoan parasite Trypanosoma cruzi. This zoonotic infectious d...

Benign tertian malarial parasites have never or very rarely been held responsible for producing symptoms of cerebral infection. Textbooks are almost silent regarding the discussion of such a possibility. Subtertian parasite, by virtue of its small size and its special predilection to invade the brain, has been always found to be the only parasite producing cerebral and other unusual symptoms. T...

Abstract Background Malaria is endemic in sub-Saharan Africa, and oxidative stress has been implicated malaria disease. Luffa cylindrica an ethnomedicinal plant used to treat various diseases, including malaria. The stress-reducing potential of L. malaria-disease state Plasmodium berghei NK-65 parasite-infected mice was carried out vivo. Materials Methods Mice were infected with P. NK-65, the e...

During development in the mosquito midgut, malarial parasites must traverse a chitin-containing peritrophic matrix (PM) that forms around the food bolus. Previously Huber et al. [Huber, M., Cabib, E. & Miller, L. H. (1991) Proc. Natl. Acad. Sci. USA 88, 2807-2810] reported that the parasite secretes a protein with chitinase activity, and they suggested that parasite chitinase (EC 3.2.1.14) play...