Keto-Adamantane-Based Macrocycle Crystalline Supramolecular Assemblies Showing Selective Vapochromism to Tetrahydrofuran.

Here, we report the synthesis of adamantane-based macrocycle by combining adamantane building blocks with π-donor 1,3-dimethoxy-benzene units. An unpredictable keto-adamantane-based macrocycle was obtained by the oxidation of using DDQ as an oxidant. Moreover, a new type of macrocyclic molecule-based CT cocrystal was prepared through exo-wall CT interactions between and DDQ.

Binaphthyl-Based Chiral Macrocyclic Hosts for the Selective Recognition of Iodide Anions.

In this study, we explorethe synthesis of binaphthyl-based chiral macrocyclic hosts for the first time. They exhibited the selective recognition abilities of iodide anions which can be favored over those of other anions (AcO, NO, ClO, HSO, Br, PF, HPO, BF, and COFS), as confirmed by UV-vis, HRMS, and H NMR spectroscopy experiments, as well as DFT calculations. Neutral aryl C-H···anion interactions play an important role in the formation complexes.

A Benzothiadiazole-Based Self-Assembled Cage for Cadmium Detection.

A turn-on fluorescent probe, cage , was efficiently self-assembled by condensing 4,4'-(benzothiadiazole-4,7-diyl)dibenzaldehyde and TREN in chloroform. The formation of cage was characterized and confirmed by NMR spectroscopy, mass spectrometry, and theoretical calculations. The yield of cage could be controlled by tuning the reaction conditions, such as the precursor concentration.

A randomized controlled trial of Baduanjin exercise to reduce the risk of atherosclerotic cardiovascular disease in patients with prediabetes.

To investigate the effectiveness of long-term Baduanjin and aerobic training on the 10-year risk of atherosclerotic cardiovascular disease in prediabetic patients. This study was single-blind randomized controlled trial. A total of 98 participants with prediabetes were randomly divided into three groups: the BDJ (n = 34), AT (n = 32), and control (n = 32) groups.

Reprogramming the Biosynthesis of Precursor Peptide to Create a Selenazole-Containing Nosiheptide Analogue.

Nosiheptide (NOS), a potent bactericidal thiopeptide, belongs to a class of natural products produced by ribosomal synthesis and post-translational modifications, and its biosynthetic pathway has largely been elucidated. However, the central trithiazolylpyridine structure of NOS remains inaccessible to structural changes. Here we report the creation of a NOS analogue containing a unique selenazole ring by the construction of an artificial system in ATCC25421, where the genes responsible for the biosynthesis of selenoprotein from and the biosynthetic gene cluster of NOS were rationally integrated to produce a selenazole-containing analogue of NOS.

Main Active Components and Cell Cycle Regulation Mechanism of Astragali Radix and Angelicae Sinensis Radix in the Treatment of Ox-LDL-Induced HUVECs Injury and Inhibition of Their Cell Cycle.

To explore the main active components and effects of cell cycle regulation mechanism of Astragali radix (AR) and Angelicae sinensis radix (ASR) on oxidative damage in vascular endothelial cells, a model of oxidative damage in human umbilical vein endothelial cells (HUVECs) induced by oxidized low-density lipoprotein (ox-LDL) treatment was developed. Based on the "knock-out/knock-in" model of the target component, cell viability, intracellular reactive oxygen species (ROS), and lactate dehydrogenase (LDH) leakage were assessed by Cell Counting Kit-8 assay, fluorescent probe 2,7-dichlorodihydrofluorescein diacetate (DCFH-DA), and colorimetric assay, respectively, to evaluate the protective effect of the active components of AR and ASR (astragaloside IV (AS IV), astragaloside I (AS I), formononetin (FRM), calycosin (CAL), calycosin-7-O--D glucoside (CLG), and ferulic acid (FRA)) against oxidative damage. The cell cycle and expression of genes encoding cyclins and cyclin-dependent kinases (CDKs) were observed using flow cytometry and quantitative real-time polymerase chain reaction.

A multifunctional fluorescence sensor for Cd, PO and Cr in different system and the practical application.

A fluorescence probe based on thiosemicarbazide has been synthesized and well characterized by H NMR, C NMR, Elemental analysis, Electrospray ionization mass spectra. The probe 1 functions as a multitarget ion sensor, detect biologically and ecologically important Cd, PO and Cr. Meanwhile, probe 1 displays selectivity for Cd over other metal ions and anions in DMF by emission spectrum.

Electronic and magnetic properties of silicon supported organometallic molecular wires: a density functional theory (DFT) study.

The electronic and magnetic properties of transition metal (TM = Sc, Ti, V, Cr and Mn) atom incorporated single and double one-dimensional (1D) styrene molecular wires confined on the hydrogen-terminated Si(100) surface are explored for the first time by means of spin-polarized density functional theory, denoted as Si-[TM(styrene)]. It is unveiled that TM atoms bind asymmetrically to the adjacent phenyl rings, which leads to novel electronic and magnetic properties in stark contrast to the well-studied gas phase TM-benzene molecular wires. Si-[Mn(styrene)]∞ and Si-[Cr(styrene)]∞ single molecular wires (SMWs) are a ferromagnetic semiconductor and half metal, respectively.

Common RASGRP1 Gene Variants That Confer Risk of Type 2 Diabetes.

Background: Genome-wide association studies have validated the RAS guanyl nucleotide-releasing protein 1 (RASGRP1) gene as a type 2 diabetes (T2D) susceptibility locus.

Aims: This study aimed to replicate and verify the association of RASGRP1 tag single-nucleotide polymorphisms with T2D in a Chinese Han population.

Methods: Eleven common variants of RASGRP1 were detected using TaqMan technology in 1272 healthy controls and 1234 T2D patients.

CO self-promoting oxidation on nanosized gold clusters: triangular Au3 active site and CO induced O-O scission.

We have systematically studied the CO oxidation on various nanosized gold clusters with sizes ranging from 0.3 to 0.8 nm on the basis of density functional theory (DFT) calculations.

[Advances of genetics in diabetic nephropathy].

Diabetic nephropathy (DN) is one of the most serious chronic complications of diabetes mellitus. The observed incidence patterns in different ethnics and familial clustering have suggested that the genetic factor plays an important role in the development and progression of DN. This paper reviews the recent advances on genetics of DN, including candidate genes association studies, linkage studies and genome-wide association studies (GWASs).

Intestinal absorption mechanisms of berberine, palmatine, jateorhizine, and coptisine: involvement of P-glycoprotein.

The absorption and transport mechanisms of berberine, palmatine, jateorhizine, and coptisine were studied using a Caco-2 cells uptake and transport model, with the addition of cyclosporin A and verapamil as P-glycoprotein (P-gp) inhibitors and MK-571 as a multidrug resistance-associated protein 2 (MRP(2)) inhibitor. In the uptake experiment, berberine, palmatine, jateorhizine, and coptisine were all taken into Caco-2 cells, and their uptakes were increased in the presence of cyclosporin A or verapamil. In the transport experiment, P(app) (AP-BL) was between 0.

[An in vitro model applicable for fatty liver lipotoxicity pharmacological research].

Objective: To establish an in vitro model applicable for fatty liver lipotoxicity pharmacological research.

Methods: HepG2 cells were cultured with rat serum instead of fetal bovine serum and with long-chain free fatty acid (FFA) added. The tested indices were: the content of serum TNFa, cellular triglycerides (TG) content, Oil Red staining and ultrastructural changes; protein expression and gene expression of cellular TNFa, and the expression and distribution of cathepsin B (Ctsb).

Study on effects of extracts from Salvia Miltiorrhiza and Curcuma Longa in inhibiting phosphorylated extracellular signal regulated kinase expression in rat's hepatic stellate cells.

Objective: To study the effect of salvianolic acid B (SAB) and curcumin, the extracts of Salvia Miltiorrhiza and Curcuma Longa, on the proliferation and activation of hepatic stellate cell (HSC), and the extracellular signal regulated kinase (ERK) expression in it.

Methods: Rat's HSC-T6 were cultured and treated by SAB or curcumin. The inhibitory effect on cell proliferation was determined by 3-(4, 5-dimthyl-2-2thiazoly)-2, 5-diphenyl-2H-tetrazolium bromide (MTT) colorimetry, and the expression levels of alpha smooth actin (alpha-SMA), collagen type I, and ERK were determined by Western blot.