Heterogeneous photocatalysts, characterized by well-defined atomic structures and the capacity for rapid, directional electron transfer, are pivotal in the exploration and development of highly efficient systems for visible-light-driven diluted CO reduction. Herein, we constructed highly reduced phosphomolybdates crystalline materials - to help this process, with the formula of [Co(CNH)][Co(CNH)(HO)][Co(HPMoO)]·8HO (), [Ni(CNH)(HO)][Ni(CNH)][Ni(HO)][Ni(HPMoO)]·3HO·2CHOH (), and [Zn(CNH)][Zn(CNH)][Zn(CNH)(HO)][Zn(HPMoO)] () [CNH = 2-(1H-pyrazol-3-yl)pyridine]. Specifically, catalyst demonstrated a CO production rate of 3276.
View Article and Find Full Text PDFBackground: Polygonum multiflorum-induced liver injury (PM-DILI) has significantly hindered its clinical application and development.
Methods: This study investigates the variation in content and toxicity of dianthrones, the toxic components of P. multiflorum, during different processing cycles.
Context: The mechanism of Renshen Shouwu Decoction (RSSW) in treating Alzheimer's disease (AD) remains unknown.
Objective: This study investigates the effects and mechanism of RSSW for ameliorating AD.
Materials And Methods: Ten SAMR1 mice and 40 SAMP8 mice were divided into five groups: control (SAMR1), model (SAMP8), positive drug (Donepezil, 1.
In artificial intelligence, it is crucial for pattern recognition systems to process data with uncertain information, necessitating uncertainty reasoning approaches such as evidence theory. As an orderable extension of evidence theory, random permutation set (RPS) theory has received increasing attention. However, RPS theory lacks a suitable generation method for the element order of permutation mass function (PMF) and an efficient determination method for the fusion order of permutation orthogonal sum (POS).
View Article and Find Full Text PDFZhachong-13 pills (ZC-13), as a traditional prescription of Mongolian medicine, are often used in the clinical practice of Mongolian hospitals for the treatment of stroke and rheumatic arthritis. In this experiment, UHPLC-Q-Exactive Orbitrap MS was used to explore the chemical composition of ZC-13. The results showed that 315 compounds were identified or inferred, including 56 alkaloids, 77 2-(2-phenylethyl)chromones, 61 flavonoids, 31 tannins, 8 coumarins, 16 lignans, 21 terpenoids, 5 amino acids, 19 organic acids, and 21 other components.
View Article and Find Full Text PDFThe current traditional phenol production process has many shortcomings, and the efficient and clean photocatalytic one-step oxidation to phenol is gradually attracting attention. Heteropolyacids (PMoV) with high-density Lewis acid active sites and excellent photoelectron transfer ability are ideal choices for catalytic reactions. In this study, a copper-modified isolated dimeric hybrid nanocluster, [Cu(pyim)][Cu(pyim)(PMoVI20MoV2VIV4O)]·(HO) (pyim = [2-(pyridin-2-yl)imidazole]), was synthesized by a convenient hydrothermal method.
View Article and Find Full Text PDFRecent studies on risks assessment of heavy metal(loid) are usually based on their total concentrations. Nevertheless, such an analysis does not assess their real amounts absorbed by human body. To scientifically assess the health risks, in this study medical earthworms were analyzed for relative bioavailability (RBA) of arsenic (As) and lead (Pb) using a multiple gavage mouse model with liver, kidneys, brain, and leg bones as biomarkers for the first time.
View Article and Find Full Text PDFPTP1B plays an important role as a key negative regulator of tyrosine phosphorylation associated with insulin receptor signaling in the therapy for diabetes and obesity. In this study, the anti-diabetic activity of dianthrone derivatives from Polygonum multiflorum Thunb., as well as the structure-activity relationships, mechanism, and molecular docking were explored.
View Article and Find Full Text PDFHydrogen energy is a renewable and clean source, which makes a great difference in future sustainable energy systems. Visible-light-driven photocatalysis reaction involves harnessing the abundance of sunlight for hydrogen production among many catalytic technologies. However, the fabrication of photocatalysts that have distinctive performance in visible light is still the primary challenge.
View Article and Find Full Text PDFThis study aims to establish an ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry(UPLC-Q-TOF-MS) method for the determination of emodin-8-O-β-D-glucoside(EG) and its metabolites in plasma, and to investigate the toxicokinetics(TK) behavior of them in rats. To be specific, the TK of EG and its metabolites from the first to the last administration in the repeated dose toxicity study was determined, and the kinetic parameters were calculated. The exposure of EG prototype and metabolites in rat plasma after oral administration of different doses of EG was evaluated.
View Article and Find Full Text PDFEthnopharmacological Relevance: The liver toxicity of Reynoutria multiflora (Thunb.) Moldenke. (Polygonaceae) (Polygonum multiflorum Thunb, PM) has always attracted much attention, but the related toxicity materials and mechanisms have not been elucidated due to multi-component and multi-target characteristics.
View Article and Find Full Text PDFSulfur oxides from the combustion of petrol and excessive emissions of carbon dioxide (CO) are currently the main causes of environmental pollution. Considerable interest has been paid to solving the challenge, and catalytic reactions seem to be the desired choice. Due to the high density of Lewis acid active sites, polyoxometalates are considered to be the ideal choice for these catalytic reactions.
View Article and Find Full Text PDFCarbon dioxide (CO) and the combustion of sulfide in gasoline are the main causes of air pollution. A great deal of attention has been paid to solving the problem and the catalytic reaction seems to be a decent choice. Due to the high-density of Lewis acidic active sites, polyoxometalates are undoubtedly an ideal choice for the sulfur oxidation reaction.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
December 2021
With the wider recognition of the concept of environmental protection and sustainable development, more and more manufacturers have begun to implement green manufacturing strategies. However, green development is a gradual process, and the coexistence of ordinary and green products is common. This paper examines the competition between ordinary products and green ones based on supply chains, and discusses the impact of retailers' horizontal cooperation on pricing, greenness, market demand, profit, and other related decisions and results.
View Article and Find Full Text PDFBackground: The raw and processed roots of Polygonum multiflorum Thunb (PM) are commonly used in clinical practice to treat diverse diseases; however, reports of hepatotoxicity induced by Polygoni Multiflori Radix (PMR) and Polygoni Multiflori Radix Praeparata (PMRP) have emerged worldwide. Thus, it is necessary for researchers to explore methods to improve quality standards to ensure their quality and treatment effects.
Methods: In the present study, an ultra-high performance liquid chromatography triple quadrupole mass spectrometry (UHPLC-QQQ-MS/MS) method was optimized and validated for the determination of dianthrones in PMR and PMRP using bianthronyl as the internal standard.
A phytochemical study on a 70% EtOH extract of dried roots of Polygonum multiflorum resulted in the isolation of four undescribed stilbene glucosides, namely multiflorumisides HK (1-4). The structures of the natural products were elucidated by 1D and 2D nuclear magnetic resonance (NMR) as well as mass spectroscopy analyses. Among them, multiflorumiside J (3) and multiflorumiside K (4) belong to rare tetramer stilbene glucosides.
View Article and Find Full Text PDFObjective: To isolate the phenolic compounds obtained from the dried roots of and investigate their pharmacological activities.
Methods: The chemical constituents were isolated and purified by combining them with a macroporous resin (DM-8), MCI gel, and Sephadex LH-20 and by performing ODS column chromatography. Their structures were elucidated by 1D and 2D NMR analyses, as well as mass spectrometry.
Eur J Obstet Gynecol Reprod Biol
September 2020
Objectives: The aim of our study was to analyze the treatment and pregnancy outcome of tubal heterotopic pregnancy (HP) patients with a viable intrauterine pregnancy (IUP) in our center.
Study Design: This was a retrospective analysis of 81 patients with tubal HP and a viable IUP. Patients were divided into either an expectant treatment group (29 patients) or a surgical treatment group (52 patients, 36 laparoscopy and 16 laparotomy).
Zhongguo Zhong Yao Za Zhi
January 2020