6 research outputs found
Toxoplasma gondii in goats from Curitiba, Paraná, Brazil: risks factors and epidemiology
Phase I Study of Interleukin-2 Combined with Interferon-α and 5-Fluorouracil in Patients with Metastatic Renal Cell Cancer
Soroprevalência de Toxoplasma gondii em rebanhos caprinos no Estado de São Paulo Seroprevalence of Toxoplasma gondii in dairy goats in the São Paulo State, Brazil
Foi colhido um total de 442 soros em rebanhos caprinos de sete regiões do Estado de São Paulo e testados para anticorpos contra Toxoplasma gondii pela reação de imunofluorescência indireta. Em todos os rebanhos, foram encontrados caprinos reagentes, totalizando 64 (14,5%) animais com sorologia positiva em diferentes capris.<br>Four hundred forty-two serum samples were collected from dairy goats in seven regions of São Paulo State. These were tested for Toxoplasma gondii antibodies using the indirect immunofluorescent antibody test. Sixty-four (14,5%) serologically positive animals were found from all these goat farms studied
CLINICAL, HEMATOLOGICAL, AND SEMINAL ALTERATIONS AND PARASITEMIA OF MALE GOATS EXPERIMENTALLY INFECTED WITH <italic>Toxoplasma gondii</italic>
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Methods to Detect Selection on Noncoding DNA
Vast tracts of noncoding DNA contain elements that regulate gene expression in higher eukaryotes. Describing these regulatory elements and understanding how they evolve represent major challenges for biologists. Advances in the ability to survey genome-scale DNA sequence data are providing unprecedented opportunities to use evolutionary models and computational tools to identify functionally important elements and the mode of selection acting on them in multiple species. This chapter reviews some of the current methods that have been developed and applied on noncoding DNA, what they have shown us, and how they are limited. Results of several recent studies reveal that a significantly larger fraction of noncoding DNA in eukaryotic organisms is likely to be functional than previously believed, implying that the functional annotation of most noncoding DNA in these organisms is largely incomplete. In Drosophila, recent studies have further suggested that a large fraction of noncoding DNA divergence observed between species may be the product of recurrent adaptive substitution. Similar studies in humans have revealed a more complex pattern, with signatures of recurrent positive selection being largely concentrated in conserved noncoding DNA elements. Understanding these patterns and the extent to which they generalize to other organisms awaits the analysis of forthcoming genome-scale polymorphism and divergence data from more species