Rickettsia conorii, the etiologic agent of Mediterranean spotted fever, belongs to the spotted fever group of Rickettsia. It is an obligate intracellular bacterium that grows within the cytoplasm of its eukaryotic host cells. It is motile in the cytoplasm of infected cells and RickA is reported as critical protein in this aspect. However, the subcellular localization of RickA remains uncertain....

Real-time electron microscopy observations of processes in wet environments, i.e., solutions, liquids, etc. have become possible only very recently with the development of electron beam transparent cells, in which a liquid layer is trapped between two ultrathin, electron-transparent membranes. Liquid-cell transmission electron microscopy (TEM) and scanning TEM (STEM) have attracted a lot of int...

objective(s): the muller cell is the principal glial cell of the vertebrate retina. the expression of glial fibrillary acidic protein (gfap) in the muller cells was used as a cellular marker for retinal damage. this study was done to evaluate the effect of gestational diabetes on retinal muller cells in rat's offspring. materials and methods: in this experimental study, 12 wistar rat dams ...

Tumour endothelial marker-8 (TEM-8) belongs to a family of endothelial markers that are raised during tumour angiogenesis. We have recently reported aberrant expression of TEMs at the mRNA level in human breast cancer. This study sought to examine the level of TEM-8 expression at the protein and mRNA level in human breast cancer tissue, and in a panel of human breast cancer cell lines. We also ...

BACKGROUND During infection, successful bacterial clearance is achieved via the host immune system acting in conjunction with appropriate antibiotic therapy. However, it still remains a tip of the iceberg as to where persistent pathogens namely, Burkholderia pseudomallei (B. pseudomallei) reside/hide to escape from host immune sensors and antimicrobial pressure. METHODS We used transmission e...

O presente artigo tem por objetivo compreender as relações afetivo-sexuais de homens gays produzidas em um terreiro amazônico, zona bragantina, no Pará. Deste modo, experiências sociais que são constituídas potencializam vivências destes fogem à heterossexualidade, ao passo modificam terreiro. Sendo assim, e etnografia acompanha o trajeto da pesquisa entrevistas semiestruturadas com os também f...

The objectives of this study are to determine the occurrence of antimicrobial resistance (AMR) genes using whole-genome sequence (WGS) of Streptococcus uberis (S. uberis) and Streptococcus dysgalactiae (S. dysgalactiae) isolates, recovered from dairy cows in the Canadian Maritime Provinces. A secondary objective included the exploration of the association between phenotypic AMR and the genomic ...

Experiments were conducted to detect interferon-tau in bovine in vitro-derived blastocysts by transmission electron (TEM) and confocal microscopy. TEM showed the presence of IFN-tau in the cytoplasm and the nuclei of expanded blastocysts. Confocal microscopy similarly confirmed the presence of IFN-tau in the trophectoderm of blastocysts. The distribution of IFN-tau appeared variable with some c...

Severe RSV infections and frequent recurrence could be related to the altered polarization of type-2/type-1 T cells. This increases the importance of determining distinctive chemokines and chemokine receptor profiles on memory T cells. We analyzed systemic adaptive T cell response in the acute (n=17) and convalescent phase (n=7) of RSV-infected children, in the acute (n=11) and convalescent pha...