Reversible Single-Crystal to Single-Crystal Transformation and Associated Magnetism of a Cyanide-Bridged Chiral-Structured Magnet.

A chiral molecule-based magnet [Mn (-pnH) (HO)][Mn(CN)]·HO (-pn = -1,2-diaminopropane), ·2HO (222), has been obtained, which has a two-dimensional (2D) square network of cyanide-bridged Mn-Mn ions. The crystallographic research on this coordination polymer indicates that it is robust enough to transform the single-crystal structure upon dehydration as well as rehydration. Meanwhile, the magnetic property changes are reversibly associated with the structural phase transitions.

Optimization design of the sound absorbing structure of double-layer porous metal material with air layer based on genetic algorithm.

An acoustic absorption structure of a double-layer porous metal material with air layers is proposed. The Johnson-Champoux-Allard (JCA) model combined with the transfer matrix method (TMM) was used to establish the theoretical calculation model of the sound absorption coefficient (SAC). Meanwhile, the SAC between 500 and 6300 Hz were measured with an impedance tube.

An atomically precise AgCu nanocluster with rich alkynyl-metal coordination structures and unique SbF assembling modes.

Elucidating the coordination structures and assembling modes of atomically precise metal nanoclusters (NCs) remains a hot topic as it gives answers to the underlying mechanism of nanomaterials and bulk materials in terms of structure-property relationships. Here we report a novel silver-copper alloy NC featuring rich alkynyl-metal coordination modes and unique SbF assembling structures. The NC, with the composition of [AgCu(dppp)(Bu-CHCC)](SbF) (dppp = 1,3-bis(diphenylphosphino)-propane), was prepared by a stepwise synthetic approach.

An alkynyl-protected AgCu nanocluster for catalytic hydrogenation.

A novel alkynyl-stabilized silver-copper alloy nanocluster with the composition of [AgCu(BuCHCC)(PPh)](SbF) was prepared by the (PPh)CuBH-mediated reduction approach. The nanocluster features a centred disordered-octahedral AgCu kernel, which is protected by hybrid alkynyl and triphenylphosphine ligands. Structural comparison of this two-electron nanocluster with other alkynyl-capped Ag/Cu ones suggested that the structure of alkynyl ligands played an important role in dictating the structures of the resulting nanoclusters.

Co-ligand triphenylphosphine/alkynyl-stabilized undecagold nanocluster with a capped crown structure.

We report the synthesis and crystal structure of novel co-ligand phosphine/alkynyl protected Au nanoclusters, with composition [Au(PPh)(C[triple bond, length as m-dash]CPh-CF)](SbF) (1). The gold atoms in the cluster as a capped crown structure subtend symmetry with one deriving from a central icosahedron and 10 peripheral Au atoms, and all alkynides are exclusively σ coordination bonding. The mean core diameter is about 5.

Ferroelastic-like transition and solvents affect the magnetism of a copper-organic radical one-dimensional coordination polymer.

The one-dimensional coordination polymers {[Cu(hfac)](-BNN)}·CHCl (1, 1̄) and {[Cu(hfac)](-BNN)} (1', 2/), hfac = hexafluoroacetylacetonate and -BNN = -phenylene bis(nitronyl-nitroxide), were obtained from CHCl and CHCl, respectively. 1 is transformed to 1 at 335 K. Their magnetic susceptibilities differ in both magnitude and temperature dependence behavior.

Three-Dimensional Supramolecular Architectures with Mn Ions Assembled from Hydrogen Bonding Interactions: Crystal Structures and Antiferromagnetic Properties.

Two novel cocrystal Mn compounds were successfully synthesized. The composition of two kinds crystals correspond to [Mn(hfac)L ·Mn(hfac)L(HO)·Mn(hfac)(HO)] () and [Mn(hfac)L ·Mn(hfac)(HO)·0.5(CH)] () [L = 1,3-bis(1'-oxyl-3'-oxido-4',4',5',5'-tetramethyl-4,5-dihydro-1-imidazol-2-y1)benzene; L = 1-(1'-oxyl-4',4',5',5'-tetramethylimidazolin-2-yl)-3-(1'-oxyl-3'-oxo-4',4',5',5'-tetramethylimidazolin-2-yl)benzene; hfac = hexafluoroacetylacetonato).

Evaluation of IL-2 and Dexamethasone intracavitary injection on the management of malignant effusion in children with solid tumors or lymphoma.

Background: Currently, no available coherent management protocol exists for pediatric cancers associated with pleural effusion, ascites, and pericardial effusion. This study aimed to retrospectively present our experience in treating pediatric cancer patients with pleural effusion, ascites, and pericardial effusion using interleukin-2 (IL-2) and dexamethasone (DEX) intracavitary injections.

Methods: Between January 1st, 2008 and December 31st, 2020, medical reports of patients diagnosed with solid tumors or lymphoma were checked to identify patients diagnosed with > 2 cm pleural effusion, and/or more than grade 1 ascites, and/or more than small pericardial effusion.

sp. nov., a novel bacterium isolated from rhizosphere soil of (Bunge) Freitag & Schütze.

A Gram-stain-positive, non-motile and coccus-shaped bacterium, designated strain LNNU 331112, was isolated from the composite rhizosphere soil of the halophyte (Bunge) Freitag and Schütze, which was collected in Xinjiang, north-west China. Growth occurred at 10-45 °C, pH 6.0-11.

Pharmacological activities of ginsenoside Rg5 (Review).

Ginseng, a perennial plant belonging to genus , has been widely used in traditional herbal medicine in East Asia and North America. Ginsenosides are the most important pharmacological component of ginseng. Variabilities in attached positions, inner and outer residues and types of sugar moieties may be associated with the specific pharmacological activities of each ginsenoside.

The Emergence of a vv + MDV Can Break through the Protections Provided by the Current Vaccines.

Marek's disease (MD) is an infectious malignant T-cell lymphoma proliferative disease caused by Marek's disease virus (MDV). In recent years, the emergence of very virulent (vv) and/or very virulent plus (vv +) strains of MDV in the field has been suggested as one of the causes of vaccination failure. The pathogenicity of the MDV strain GX18NNM4, isolated from a clinical outbreak in a broiler breeder flock that was vaccinated with CVI988/Rispens, was investigated.

Characteristics of primary Sjögren's syndrome related lymphocytic interstitial pneumonia.

Objective: This paper is aimed at investigating the clinical characteristics of primary Sjogren's syndrome (pSS) with lymphocytic interstitial pneumonia (LIP).

Methods: The demographic data, clinical manifestations, laboratory and radiological findings, treatment, and prognosis from 15 cases of pSS-LIP patients were retrospectively analyzed. The data were compared with t test, χ test, and Pearson/Spearman correlation analysis.

[Effects of fertilizer application on yield and fertilizer utilization of Coffea arabica in southwest dry-hot region of China under different shading levels].

The fertilizer and shading management of Coffea arabica in dry-hot area is extensive, resulting in lower yield and fertilizer utilization efficiency. A field experiment was carried out to find the coupling mode of shading and fertilizer for fertilizer-saving and high yield of C. arabica in dry-hot region.

Gut commensal bacteria, Paneth cells and their relations to radiation enteropathy.

In steady state, the intestinal epithelium forms an important part of the gut barrier to defend against luminal bacterial attack. However, the intestinal epithelium is compromised by ionizing irradiation due to its inherent self-renewing capacity. In this process, small intestinal bacterial overgrowth is a critical event that reciprocally alters the immune milieu.

Recurrent primary spontaneous pneumothorax in a large Chinese family: a clinical and genetic investigation.

Background: Primary spontaneous pneumothorax (PSP) is a common manifestation of Birt-Hogg-Dubé (BHD) syndrome, which is an autosomal dominant disorder caused by mutation of the folliculin (FLCN) gene. This study was established to investigate the mutation of the FLCN gene and the phenotype in a family with PSP.

Methods: We investigated the clinical and genetic characteristics of a large Chinese family with recurrent spontaneous pneumothorax.

Activation of the mammalian target of rapamycin signaling pathway underlies a novel inhibitory role of ring finger protein 182 in ventricular remodeling after myocardial ischemia-reperfusion injury.

Myocardial ischemia-reperfusion injury (MIRI) is a major cause of cardiovascular disease, leading to mortality and disability associated with coronary occlusion worldwide. A correlation of mammalian target of rapamycin (mTOR)/nuclear factor-kappa B (NF-κB) signaling pathway has been observed with brain damage resulting from myocardial ischemia. Therefore, by establishing MIRI rat model, this study aimed to explore whether ring finger protein 182 (RNF182) regulates the mTOR signaling pathway affecting MIRI.

β-Microglobulin participates in development of lung emphysema by inducing lung epithelial cell senescence.

β-Microglobulin (βM), the light chain of the major histocompatibility complex class I (MHC I), has been identified as a proaging factor and is involved in the pathogenesis of neurodegenerative disorders by driving cognitive and regenerative impairments. However, little attention has focused on the effect of βM in the development of lung emphysema. Here, we found that concentrations of βM in plasma were significantly elevated in patients with lung emphysema than those in normal control subjects (1.

[Expressions of clinical significances of p-extracellular regulated kinase 1/2 and matrix metalloproteinase-9 in cervical squamous cell carcinoma].

Objective: To study the expressions and clinical significances of p-extracellular regulated kinase(P-ERK)1/2 and matrix metalloproteinase-9(MMP-9)in cervical squamous cell carcinoma.

Methods: The expressions of P-ERK1/2 and MMP-9 in 30 cases with chronic cervicitis, 45 cases with cervical intraepithelial neoplasia (CIN), and 58 cases with cervical squamous cell carcinoma were detected by immunohistochemical method.

Results: The positive rates of P-ERK1/2 and MMP-9 in chronic cervicitis, CIN, and cervical squamous cell carcinoma were 0 and 0, 28.

Expression of Hc fragment from Clostridium botulinum neurotoxin serotype B in Escherichia coli and its use as a good immunogen.

A good immunogen was developed as an effective recombinant vaccine candidate that protected mice against botulinum neurotoxin serotype B (BoNT/B) intoxication. The Hc fragment of Clostridium botulinum neurotoxin type B (rBoNT/B-Hc) was cloned into the bacterial expression vector pQE-30, and the resulting vector was successfully expressed in the Escherichia coli M15 strain. The purified rBoNT/B-Hc protein was used to vaccinate mice and evaluate their survival against challenge with native BoNT/B.

Effects of Tongguan Capsule on post-myocardial infarction ventricular remodeling and cardiac function in rats.

Objective: To observe the effects of Tongguan Capsule (TGC) on post-myocardial infarction ventricular remodeling and heart function in rats.

Methods: A rat model of acute myocardial infarction (AMI) was established by coronary ligation. Experimental rats were randomized to 4 groups including three model groups (Group A: captopril 5 mg/kg * day, n=7; Group B: TGC 10 g/kg * day, n=7; and Group C: placebo, n=8), and a sham-control group (Group D: blank control, n=6).

Sex difference in the prevalence of left ventricular hypertrophy in dialysis patients.

Background: Left ventricular hypertrophy (LVH) is an important, independent negative predictor of cardiovascular morbidity and mortality in the general population and in dialysis patients. Previous studies suggest a sex dimorphism in the prevalence of LVH; however, this issue has never been approached in dialysis patients.

Methods: This study enrolled 237 prevalent dialysis patients: 49 on hemodialysis (HD) and 188 on peritoneal dialysis (PD) from a single center.

Stepwise increase in the prevalence of isolated systolic hypertension with the stages of chronic kidney disease.

Background: Hypertension is common in patients with chronic kidney disease (CKD), and isolated systolic hypertension (ISH) accounts for most patients with inadequate blood pressure (BP) control. However, it remains unclear whether the prevalence of ISH would increase with the advancement of CKD.

Methods: CKD patients of stages 3, 4 and 5 were recruited (n = 324).

Volume overhydration is related to endothelial dysfunction in continuous ambulatory peritoneal dialysis patients.

Objective: In dialysis patients, volume overhydration is common and is related to increased risk of cardiovascular morbidity and mortality. However, it remains unclear whether volume overload imposes those detrimental effects through endothelial dysfunction.

Methods: In this cross-sectional study, 81 stable patients on continuous ambulatory peritoneal dialysis in a single center were recruited.