نتایج جستجو برای: babesia microti
تعداد نتایج: 2530 فیلتر نتایج به سال:
Babesia microti, a tick-transmitted, intraerythrocytic protozoan parasite circulating mainly among small mammals, is the primary cause of human babesiosis. While most cases are transmitted by Ixodes ticks, the disease may also be transmitted through blood transfusion and perinatally. A comprehensive analysis of genome composition, genetic diversity, and gene expression profiling of seven B. mic...
The need for improved diagnostic reagents to identify human long-term carriers of the zoonotic parasite Babesia microti is evidenced by numerous reported cases of transfusion-acquired infections. This report describes the identification and initial characterization of 27 clones representing seven genes or gene families that were isolated through serological expression cloning by using a techniq...
BACKGROUND Babesiosis is an emerging tickborne malaria-like infection principally caused by Babesia microti. This infection typically resolves either spontaneously or after administration of a 7-10-day course of azithromycin plus atovaquone or clindamycin plus quinine. Although certain highly immunocompromised patients may respond suboptimally to these drug regimens, unlike the situation with m...
Increased recognition of the prevalence of human babesiosis in the United States, together with rising concern about the potential for transmission of this infection by blood transfusion, has provided motivation to develop definitive serologic and molecular tests for the causative agent, Babesia microti. To develop more sensitive and specific assays for B. microti, we screened a genomic express...
To investigate effects of Babesia infection on drug metabolism, we intraperitoneally inoculated B. microti into ICR mice and measured the expression and activity of hepatic cytochrome P450 (CYP) 3A, a major drug-metabolizing enzyme. Twelve days after infection, CYP3A11 mRNA, CYP3A protein and activity and mRNAs of nuclear receptors, which participate in CYP3A expression, were significantly redu...
Hematological findings during the course of infection and the antibody response in Syrian hamsters infected with Babesia microti were examined. A macrocytic hypochromic anemia with an increase of the reticulocyte count was detected as a rise in the parasitized erythrocyte rate. White blood cell counts also remarkedly increased with the increases of both neutrophils and active-shaped monocytes, ...
BACKGROUND Human babesiosis is a tickborne malaria-like illness that generally resolves without complication after administration of atovaquone and azithromycin or clindamycin and quinine. Although patients experiencing babesiosis that is unresponsive to standard antimicrobial therapy have been described, the pathogenesis, clinical course, and optimal treatment regimen of such cases remain unce...
Babesiosis is an emerging zoonotic disease on all inhabited continents and various wildlife species are the principal reservoir hosts for zoonotic Babesia species. The primary vectors of Babesia are Ixodid ticks, with the majority of zoonotic species being transmitted by species in the genus Ixodes. Species of Babesia vary in their infectivity, virulence and pathogenicity for people. Various fa...
Because both Babesia microti and Borrelia burgdorferi can be transmitted by the bite of a single coinfected Ixodes scapularis tick, an attempt was made to determine frequency with which whole blood samples that tested positive for B. infection polymerase chain reaction (PCR) would also test PCR infection. Over 7-year period from 2013 2019, 119 different patients on at least one sample. Among 11...
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