Research progress on the influencing factors and response mechanisms of plant adsorption of atmospheric particulate matter.

Plants could effectively adsorb and remove particulate matter from the air, while could be suffered from the adverse effects. Therefore, exploring the interaction between plants and atmospheric particulate matter is crucial for profound understanding of ecological balance, microenvironmental climate, and environmental quality improvement. Few systematic literature have elaborated the adsorption and response mechanisms of atmospheric particulate matter by plants.

[Atorvastatin promotes the healing of alveolar bone defect in rats and its effect on Wnt/β-catenin signaling pathway].

Purpose: To investigate the therapeutic effect of atorvastatin on alveolar bone defect model in rats, and to observe the effect of atorvastatin on Wnt/β-catenin.

Methods: Thirty rats were randomly divided into normal group (group N), model group (group M) and atorvastatin administration group (group ATV). Except group N, bone defects were made in other rats' alveolar bone to construct alveolar bone defect model.

Germination and Invasion of on Roots of a Susceptible and a Resistant Alfalfa Cultivar ().

Alfalfa Paraphoma root rot (APRR) () is a recently described alfalfa disease widely distributed in China, first reported in 2020. So far, the resistance levels of 30 alfalfa cultivars to APRR have been characterized; however, the resistance mechanisms among these cultivars remain unknown. In the present study, the alfalfa resistance mechanisms against APRR were investigated by studying the difference of infecting susceptible (Gibraltar) and resistant (Magnum II) alfalfa cultivars under the light microscope and scanning electronic microscope.

Design and Synthesis of Novel Sulfonamide-Derived Triazoles and Bioactivity Exploration.

Objective: Due to the incidence of resistance, a series of sulfonamide-derived 1,2,4- triazoles were synthesized and evaluated.

Method: The novel sulfonamide-derived 1,2,4-triazoles were prepared starting from commercial acetaniline and chlorosulfonic acid by sulfonylation, aminolysis, N-alkylation and so on. The antimicrobial activity of the synthesized compounds were evaluated in vitro by two-fold serial dilution technique.

Design, synthesis and antimicrobial evaluation of novel benzimidazole-incorporated sulfonamide analogues.

A novel series of benzimidazole-incorporated sulfonamide analogues were designed and synthesized with an effort to overcome the increasing antibiotic resistance. Compound 5c gave potent activities against Gram-positive bacteria and fungi, and 2,4-dichlorobenzyl derivative 5g showed good activities against Gram-negative bacteria. Both of these two active molecules 5c and 5g could effectively intercalate into calf thymus DNA to form compound-DNA complex respectively, which might block DNA replication to exert their powerful antimicrobial activity.

[Study on the chemical constituents of two lichen plants from Meng Mountain].

Objective: To investigate the chemical constituents of the lichen plants Parmelia tinctorum and Parmelia nimandairana collected from Meng Mountain in Shandong province.

Methods: Various chromatographic techniques were used to isolate and purify the constituents and their structures were elucidated by means of spectral evidence and physiochemical properties.

Results: Four compounds were isolated from Parmelia tinctorum and identified as: lecanoric acid (I), evernic acid (II), ethyl orsellinate (III) and 3,5-dihydroxytoluene (IV).

A new on-line concentration method of cationic molecules in capillary electrophoresis by a hyphenated micelle to solvent stacking coupling with large amount sample electrokinetic stacking injection.

In this paper, we established a new on-line method using micelle to solvent stacking (MSS) technique combining with large amount sample electrokinetic stacking injection (LASEKSI) for the analysis of cationic molecules. In this MSS-LASEKSI, by modulating the integral EOF across the capillary, a equilibrium state was formed and can be maintained for a long time, leading to the continuous stacking of the analytes on the basis of MSS. Thereby, an extremely large amount sample was permitted to be injected into the capillary and then an improved enrichment fold can be achieved comparing with the each case.

Preparation of guanidine group functionalized magnetic nanoparticles and the application in preconcentration and separation of acidic protein.

Guanidine group (Gnd) functionalized magnetic nanoparticles (Fe3O4@SiO2@NH2-Gnd) were synthesized and characterized in this work for the first time. The characterization of Fe3O4@SiO2@ NH2-Gnd nanoparticles was demonstrated by transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectra, vibration sample magnetometer, and zeta potential analyzer. The novel multifunctional nanoparticles were served as a solid-phase extraction sorbent for easy isolation and preconcentration of acidic protein from aqueous solution only using a magnet.

Rapid and sensitive determination of hydroxyproline in dairy products using micellar electrokinetic chromatography with laser-induced fluorescence detection.

Many reports have focused on the determination of hydroxyproline (Hyp) in blood plasma, urine sample, meat and meat products, however, there are few concerned with the Hyp assay in dairy products for food quality assurance up to now. In this paper, we described a sensitive and automated approach for the determination of Hyp in milk powder, liquid milk, milk drink and soymilk powder samples by micellar electrokinetic chromatography (MEKC) based on in-capillary derivatization for the first time. Under the optimal conditions, derivatization and separation procedure could be completed within 7 min and the detection limit for Hyp was 1.

Chinese family adaptation during the postpartum period and its influencing factors: A questionnaire survey.

Aim: this study aimed to explore new parents' views and experiences during their transition to parenthood.

Background: in China the one-child birth policy may bring more stress and challenges for the new parents due to the lack of experience and greater expectations of their new role. China is also at a stage of rapid economic and social development which creates new conditions for parenthood.

Effects of loading dose of atorvastatin before percutaneous coronary intervention on periprocedural myocardial injury.

Objectives: To investigate the effects of loading dose of atorvastatin on periprocedural myocardial injury and inflammatory reaction in patients with non-ST segment elevation (NSTE) acute coronary syndromes (unstable angina or NSTE acute myocardial infarction).

Methods: A total of 81 patients with NSTE-acute coronary syndromes were randomly divided into the pretreatment with atorvastatin group [80 mg 12 h before percutaneous coronary intervention (PCI), with a further 40 mg preprocedure dose] (n=41) or the placebo group (n=40). The main end point was a 30-day incidence of major adverse cardiac events (cardiac death, nonfatal acute myocardial infarction, or revascularization with either PCI or coronary artery bypass grafting).

Lobarialides A-C, antifungal triterpenoids from the lichen Lobaria kurokawae.

Three novel fernane-type triterpenoids, lobarialides A-C (1-3, resp.), together with two known ones were isolated by antifungal bioassay-guided fractionation of the lichen Lobaria kurokawae. Their structures including configurations were established on the basis of extensive spectroscopic analyses, and that of 1 was confirmed by a single-crystal X-ray diffraction analysis.

[Studies on chemical constituents of Lobaria kurokawae yoshim].

Six compounds have been isolated from the lichen plant Lobaria kurokawae and their structures were determined as ergosterol (1) , stictan-3beta, 22alpha-diol (2), retigeric acid B (5), retigeric acid A (6), ethyl orsellinate (3)and 3-O-methyl-1,2: 5,6-bis-O-(1 -mehtylethylidene)-d-chiro-inostiol (4) on the basis of spectral data(MS, 1H-NMR, 13C-NMR and 2D-NMR). Compounds 1-4 were isolated from this plant for the first time.