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Williams Corrine M. Cprek Sarah Asaolu Ibitola English Brenda Jewell Tracey Smith Kylen Robl Joyce 《Maternal and child health journal》2017,21(5):1166-1174
Maternal and Child Health Journal - Background and Objectives: Home visitation programs are one of the numerous efforts to help reduce the rates of preterm birth and low birth weight as well as... 相似文献
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M D Rossman E Chen P Chien M Rottem A Cprek A D Schreiber 《American journal of respiratory cell and molecular biology》1989,1(3):211-220
We examined the binding characteristics of human monocytes and macrophages with the IgG ligands, human monomeric IgG and a small human IgG aggregate, trimeric IgG. Our purpose was to utilize fresh monocytes, in vitro cultured monocytes, and alveolar macrophages in direct and indirect binding experiments. Freshly isolated monocytes expressed only a single binding site for IgG monomer and IgG trimer. In contrast, in vitro cultured monocytes, gamma-interferon-treated monocytes, and freshly isolated alveolar macrophages expressed a single binding site for IgG monomer and, in addition, a high and low affinity binding site for IgG trimer. The high affinity binding site for IgG trimer (Kd approximately equal to 1 nM) appeared identical to the binding site for IgG monomer. The low affinity binding site for IgG trimer (Kd = 50 to 250 nM) appeared to be due to Fc gamma RII, because antibody to Fc gamma RII inhibited its expression. Since Fc gamma RII, in contrast to Fc gamma RI, does not bind monomeric IgG, the data suggest that this low affinity receptor for trimeric IgG, Fc gamma RII, can bind low molecular weight circulating immune complexes at concentrations 10- to 100-fold lower than Fc gamma RI. Thus, these studies suggest that at 37 degrees C, macrophage Fc gamma RII may play a functional role in the recognition of small molecular weight immune complexes. 相似文献
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We describe outcomes of patients with infections with carbapenem-resistant Klebsiella pneumoniae (CRKP) who received ertapenem-containing double-carbapenem therapy (ECDCT). Clinical success was observed in 7/18 (39%) patients overall: bloodstream infections, 3/7 (43%); pneumonia, 1/5 (20%); intraabdominal infections, 0/2 (0%); urinary tract infections, 2/3 (67%); and a skin and skin structure infection, 1/1 (100%). Microbiologic success was observed in 11/14 (79%) evaluable patients; 5/18 (28%) patients died. ECDCT may be effective for CRKP infections with limited treatment options. 相似文献
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