Drug resistance of Pseudomonas aeruginosa based on the isolation sites and types of gastrointestinal diseases: An observational study.

We investigated the drug resistance status of Pseudomonas aeruginosa (P. aeruginosa) focusing on its isolation sites and types of diseases.　Materials and methods: A microbiological laboratory database was searched to identify all clinical cultures positive for P.

Quantitative analysis of air-oxidation reactions of thiolate-protected gold nanoclusters.

The interaction of dioxygen (O) with inorganic nanomaterials is one of the most essential steps to understanding the reaction mechanism of O-related reactions. However, quantitative analyses for O-binding processes and subsequent oxidation reactions on the surface are still elusive, whereas the reaction of O with molecules such as transition metal complexes has been widely explored. Herein, we have quantitatively evaluated reaction processes of air-oxidation reactions of atomically precise thiolate-protected Au nanoclusters ([Au(SR)]) as a model of O activation by inorganic nanomaterials.

Pivotal role of myeloid-derived suppressor cells in infection-related tumor growth.

Background: In this study, we investigated infection-related tumor growth, focusing on myeloid-derived suppressor cells (MDSCs) in clinical and experimental settings.

Patients And Methods: In the clinical study, a total 109 patients who underwent gastrectomy or esophagectomy were included. Blood samples were collected from a preoperative time point through 3 months after surgery, and MDSCs were analyzed using flow cytometry.

Pseudomorphic amorphization of three-dimensional superlattices through morphological transformation of nanocrystal building blocks.

Nanocrystal (NC) superlattices (SLs) have been widely studied as a new class of functional mesoscopic materials with collective physical properties. The arrangement of NCs in SLs governs the collective properties of SLs, and thus investigations of phenomena that can change the assembly of NC constituents are important. In this study, we investigated the dynamic evolution of NC arrangements in three-dimensional (3D) SLs, specifically the morphological transformation of NC constituents during the direct liquid-phase synthesis of 3D NC SLs.

Prognostic impact of postoperative infection after resection of biliary malignancy: A multicenter retrospective cohort study.

Background: The aim of this study was to investigate the prognostic impact of postoperative infections in patients who underwent resection for biliary malignancy, including intrahepatic cholangiocarcinoma, perihilar cholangiocarcinoma, distal cholangiocarcinoma, gallbladder carcinoma, and carcinoma of the ampulla of Vater.

Methods: This study was conducted in an 11-center retrospective cohort study. Patients with biliary tract cancer who underwent curative resection between April 2013 and March 2015 at 11 institutions in Japan were enrolled.