RosR is a transcriptional regulator important for determining cell-surface characteristics and nodulation competitiveness in Rhizobium etli CE3. We identified a 15-kb region that contains genes with similarity to members of the virB, virC, virG, and virE operons of Agrobacterium tumefaciens and demonstrated that RosR directly regulates one operon in this region. These genes were located on plas...

Background: In our study, we investigated whether circulating T follicular helper (Tfh) and the related cytokines are involved in human cystic echinococcosis (CE). Methods: A total of 64 patients with CE and 30 healthy controls were enrolled in this study. Percentages of CCR7PD-1 cells within CXCR5 CD4 T cells (circulating Tfh cells) were detected by flow cytometry. Levels of IL-21 and IL-4 in ...

BACKGROUND In our study, we investigated whether circulating T follicular helper (Tfh) and the related cytokines are involved in human cystic echinococcosis (CE). METHODS A total of 64 patients with CE and 30 healthy controls were enrolled in this study. Percentages of CCR7(lo)PD-1(hi) cells within CXCR5(+) CD4(+) T cells (circulating Tfh cells) were detected by flow cytometry. Levels of IL-2...

Magnesium tetraborate, MgB4O7, is an attractive host material for dosimetry due to the two characteristics: its low effective atomic number (Zeff = 8.4) and high neutron capture cross-section of 10B isotope. Particularly, Ce3+ Li+ ions co-doped MgB4O7 has shown optically stimulated luminescence (OSL) signal comparable that Al2O3:C, which a well-known OSL material. In this work, further improvem...

Lanthanide-doped nanophosphors have emerged as promising optical labels for high-resolution, “multicolor” electron microscopy. Here, we develop a library of 11 unique lanthanide-doped with average edge lengths 15.2 ± 2.0 nm (N = 4284). These consist an electron-stable BaYF5 host lattice doped at 25% atomic concentration the lanthanides Pr3+, Nd3+, Sm3+, Eu3+, Tb3+, Dy3+, Ce3+, Ho3+, Er3+, Tm3+,...

Rhizobium etli CE3 bacteroids were isolated from Phaseolus vulgaris root nodules. The lipopolysaccharide (LPS) from the bacteroids was purified and compared with the LPS from laboratory-cultured R. etli CE3 and from cultures grown in the presence of anthocyanin. Comparisons were made of the O-chain polysaccharide, the core oligosaccharide, and the lipid A. Although LPS from CE3 bacteria and bac...

The radiation conversion phenomenon is used for UV sensing applications with rare earth doped phosphors. This paper presents the results of structural and optical measurements undoped europium LaPO4 phosphors 1% mol, 2% 5% mol were fabricated by co-precipitation method. effect Eu3+ concentrations on luminescence characteristics under LED excitation was investigated. maximum quantum efficiency (...