Characterizations and Nonlinear-Optical Properties of Pentanary Transition-Metal Oxysulfide SrCoGeOS.

As one type of material containing multiple anions, oxysulfides can combine the advantages of oxides and sulfides and are deeply studied as nonlinear-optical (NLO) materials. Herein, a new melilite-type pentanary oxysulfide SrCoGeOS is studied. It crystallizes in the noncentrosymmetric tetragonal space group 4̅2, and its structure features GeOS and CoS tetrahedra-built {[CoGeOS]} layers.

Misdiagnosis of primary mucosa-associated lymphoid tissue lymphoma of the pleura: case report and literature review.

Background: Mucosa-associated lymphoid tissue (MALT) lymphoma is an indolent B cell lymphoma. Its occurrence in the pleura is rare, with atypical clinical manifestations. MALT of the pleura is easily misdiagnosed.

Cation Regulation to Investigate the Chalcogenide Borate RENbMgSBO (RE = La-Nd) Family.

Chalcogenide borates have been developed and are considered an attractive system due to their favorable physical properties such as magnetism and nonlinear optical effects. Here, isostructural RENbMgSBO (RE = La-Nd) compounds in the title family have been obtained through cation regulation in rare-earth and VB group metals. This family crystalizes in the centrosymmetric 3̅ space group and features 3D frameworks formed by {[Mg(NbBO)]} polyanionic layers and QRE octahedra.

Sn Br S : The First Ternary Halogen-Rich Chalcohalide Exhibiting a Chiral Structure and Pronounced Nonlinear Optical Properties.

Infrared nonlinear optical (IR NLO) materials are significant in laser technology for civil and military uses. Here, we report the synthesis, structural chemistry and NLO properties of a halogen-rich chalcohalide Sn Br S . Its noncentrosymmetric (NCS, P6 ) structure can be considered as partially aliovalent anion substitution of SnBr (P6 /m) induced centrosymmetric (CS) to NCS structural transformation.

Second-Harmonic-Generation-Active Oxyhalides: CuSbOX (X = Cl, Br).

Metal oxyhalides have attracted broad interest recently because of their diverse structures and versatile properties. Here, two oxyhalides, CuSbOCl () and CuSbOBr (), were studied by focusing on their nonlinear-optical properties. They are crystallized in the noncentrosymmetric monoclinic structure, and the layered structures could be derived from a 1:1 combination of CuX- (X = Cl, Br) and SbO-type slabs.

SnPQ (Q = S, Se, S/Se): A Series of Lone-Pair Cationic Chalcogenophosphates Exhibiting Balanced NLO Activity Originating from SnQ Units.

Two chalcogenophosphates, SnPSSe () and SnPSe (), are isostructural and crystallize in the monoclinic noncentrosymmetric space group . Their three-dimensional (3D) structures are constructed by [Sn(1)Q] hendecahedra and [Sn(2)Q] dodecahedra by sharing Q vertices and edges, leaving cavities for isolated [PQ] (Q = S/Se, Se) dimers. A second-harmonic-generation (SHG) measurement indicates that is phase-matchable with a response of approximately 1.

Clustering Cases of Chlamydia psittaci Pneumonia in Coronavirus Disease 2019 Screening Ward Staff.

We describe 4 cases of Chlamydia psittaci pneumonia among medical staff in a coronavirus disease 2019 (COVID-19) screening ward, as well as the experience of dealing with this nosocomial infection event. Atypical pneumonia, in addition to COVID-19, should be considered when clustering cases occur, even during a COVID-19 pneumonia pandemic.

A Series of Chalcogenide Borates RETaMgQBO (RE = Sm, Eu, Gd; Q = S, Se) Featuring a BO Cluster.

New compounds with multiple anions are receiving increasing interest in view of their diverse structures and physical properties. Here we report four isostructural hexanary RETaMgQBO (RE = Sm, Eu, Gd; Q = S, Se), belonging to the rare chalcogenide borates. Their structures feature an unprecedented [BO] unit comprised of one BO and three BO units.

Fingerprint Analysis and Quantitative Determination of Fourteen Active Components in the Traditional Chinese Medicinal Preparation changweiyan Capsule by HPLC-DAD-ESI-MS/MS.

changweiyan capsule (FY capsule), a traditional Chinese medicinal preparation consisting of three medicinal herbs, has been used to treat bacterial dysentery, acute, and chronic gastroenteritis for several decades. In this study, a novel, convenient, accurate, and valid method was developed by using high-performance liquid chromatography (HPLC) coupled with diode array detection (DAD) to obtain a chromatographic fingerprint of changweiyan capsule (FY capsule). Then, fourteen peaks were identified according to MS/MS fragmentation behavior of the reference standards by using HPLC-DAD-ESI-MS/MS analysis.

SnGaS: A Type of IR Nonlinear-Optical Material.

The deficiency of nonlinear-optical (NLO) materials in the IR region inspires strong research interest in this field. Here, SnGaS (), crystallizing in the orthorhombic 2 space group, demonstrates obvious NLO activity, around a maximum of 1.6 times that of AgGaS and a strong laser-induced damage threshold of 9.

The Anti-Inflammatory Effect of Feiyangchangweiyan Capsule and Its Main Components on Pelvic Inflammatory Disease in Rats via the Regulation of the NF-B and BAX/BCL-2 Pathway.

Although gastroenteritis and pelvic inflammatory disease (PID) occur in the gastrointestinal tract and pelvis, respectively, they display similar pathogeneses. The incidence of inflammation in these conditions is usually associated with dysbacteriosis, and, at times, they are caused by the same pathogenic bacteria, and . Feiyangchangweiyan capsule (FYC) is a traditional Chinese patent medicine that is widely used to treat bacterial dysentery and acute and chronic gastroenteritis.

Determination of oxytetracycline hydrochloride in milk and egg white samples using Ru(bipy) -Ce(SO ) chemiluminescence.

A novel, rapid and sensitive chemiluminescence (CL) method for the determination of oxytetracycline hydrochloride (OTCH) is described in this paper. The presented method was based on the fact that OTCH could immensely enhance the CL of the reaction of cerium sulfate and tris(2,2-bipyridyl) ruthenium (II) in acidic medium. Under optimal experimental conditions, CL intensity was favorably linear for OTCH in the range 5.

Critical Role of Endoplasmic Reticulum Stress in Chronic Intermittent Hypoxia-Induced Deficits in Synaptic Plasticity and Long-Term Memory.

Aims: This study examined the role of endoplasmic reticulum (ER) stress in mediating chronic intermittent hypoxia (IH)-induced neurocognitive deficits. We designed experiments to demonstrate that ER stress is initiated in the hippocampus under chronic IH and determined its role in apoptotic cell death, impaired synaptic structure and plasticity, and memory deficits.

Results: Two weeks of IH disrupted ER fine structure and upregulated ER stress markers, glucose-regulated protein 78, caspase-12, and C/EBP homologous protein, in the hippocampus, which could be suppressed by ER stress inhibitors, tauroursodeoxycholic acid (TUDCA) and 4-phenylbutyric acid.

Therapeutic effect of recombinant human catalase on H1N1 influenza-induced pneumonia in mice.

Reactive oxygen species (ROS) are believed to play a key role in the induction of lung damage caused by pneumonia and therapeutic agents that could effectively scavenge ROS may prevent or reduce the deleterious effects of influenza-induced pneumonia. In this study, we first demonstrated that human catalase could attenuate acute oxidative injury in lung tissues following influenza-induced pneumonia. Mice were infected with influenza virus H1N1 (FM1 strain) and treated with recombinant human catalase (50,000 U/kg) by inhalation.

High-level expression and purification of recombinant human catalase in Pichia pastoris.

Catalase is one of the antioxidant enzymes and is involved in many pathophysiologic processes and human diseases. This study focused on high-level expression and purification of recombinant catalase in Pichia pastoris. The cDNA encoding catalase was cloned by RT-PCR from Fetal liver of Homo sapiens.

[Administration of sirolimus affects vein graft neointima hyperplasia].

Objective: To investigate the effect of Sirolimus on vein graft neointima hyperplasia via oral administration compared with local delivery, and find out an effective and safe way to provide support for clinical application.

Methods: A rabbit external jugular vein-to-common carotid artery model was established. Twenty-four healthy rabbits were divided into 4 groups at random: blank-control group, F-127 control group, group 3 that received locally applied slow-releasing Sirolimus with F-127, group 4 that received oral Sirolimus (the commercial name Rapamune).

[Local applied slow-releasing rapamycin inhibits neointima hyperplasia in vein graft].

Objective: To investigate whether rapamycin (RPM) can reduce the neointima formation in the autologous vein graft, thus to provide support for its clinical application.

Methods: Twenty-four male rabbits were made external jugular vein-to-common carotid artery models and then were divided into 4 equal groups at random: blank-control group; F-127 control group receiving local application of 0.5 ml 20% F-127 around the vein graft; low-dose RPM group, receiving local application of 0.

[Aprotinin reduces myocardial injury in the off-pump coronary artery bypass grafting].

Objective: To investigate the effect of aprotinin on the myocardial injury during the off-pump coronary artery bypass grafting (OPCAB).

Methods: Twenty-four patients undergoing OPCAB randomly were of 12 patients divided into two groups: aprotinin group and Control group (n = 12). In the aprotinin group a loading dose (2 x 10(6) KIU) was administered within the first 30 minutes after the induction followed by continuous infusion of 0.