Association Between Visceral Obesity Index and Diabetes: A Systematic Review and Meta-analysis.

Content: The correlation between visceral obesity index (VAI) and diabetes and accuracy of early prediction of diabetes are still controversial.

Objective: This study aims to review the relationship between high level of VAI and diabetes and early predictive value of diabetes.

Data Sources: The databases of PubMed, Cochrane, Embase, and Web of Science were searched until October 17, 2023.

The effect of ultrasonic power on the physicochemical properties and antioxidant activities of frosted figs pectin.

Ultrasound has been widely used in industry due to its high energy and efficiency. This study optimized the ultrasonic-assisted extraction (UAE) process of frosted figs pectin (FFP) using response surface methodology (RSM), and further investigated the effect of ultrasonic power on the structural characteristics and antioxidant activities of FFPs. The UAE method of FFP through RSM was optimized, and the optimal extraction process conditions, particle size of 100 mesh, pH value of 1.

An Evaluation of the Edible Value of Seeds: Proximate Composition, Phytochemical Components and Antioxidant Activity.

seeds (SMS) are the main by-product of the production processing of . The main purposes of this work are to analyse the nutritional components in SMS, to explore the antioxidant activity of the chemical components in SMS and to evaluate the possibility of SMS as a raw material for functional foods. The contents of crude fibre, total protein, carbohydrates, total phenolics and flavonoids in SMS and the composition and relative content of fatty acids in SMS oil were determined.

Molten salt synthesis of 1T/2H mixed phase MoS for boosting photocatalytic H evolution via Schottky junction under EY-sensitized system.

Clean H fuel obtained from the photocatalytic water splitting to hydrogen reaction could efficiently alleviate current energy crisis and the concomitant environmental pollution problems. Therefore, it is desirable to search for a highly efficient photocatalytic system to decrease the energy barrier of water splitting reaction. Herein, the 1T/2H mixed phase MoS sample with Schottky junction between contact interfaces is developed through molten salt synthesis for photocatalytic hydrogen production under a dye-sensitized system (Eosin Y-TEOA-MoS) driven by the visible light.

The efficient removal of congo red and ciprofloxacin by peony seeds shell activated carbon with ultra-high specific surface area.

Preparation of high-performance activated carbon from agroforestry waste biomass can effectively improve the shortcomings of traditional biomass carbon performance. Using the waste biomass peony seeds shell (PSS) as the precursors in this study, high performance activated carbon was prepared by the KOH two-step activation method and used to remove congo red (CR) and ciprofloxacin (CIP) in water pollution. The obtained PSS-based activated carbons (PSACs) were characterized by SEM, EDS, N adsorption-desorption isotherm, FTIR, and XRD methods.

Comparative Study of the Flavonoid Content in from Different Cultivation Areas in China.

Georgi, an important perennial herb, is widely distributed and used all over the world. The root of () is rich in flavonoids with a variety of bioactive effects and is widely used in clinic. The different geographical and climatic conditions of different cultivated areas of lead to the differences of the main components in The main objective of this study was to evaluate the difference of flavonoid content in from different cultivated areas in China.

[Chemical constituents from Pulsatillae Radix].

Chemical constituents of ethanol extract of Pulsatillae Radix were investigated. The n-butanol fraction of ethanol extract of Pulsatillae Radix was isolated and purified by macroporous resin and silica gel column chromatography and semi-preparative high performance liquid chromatography. The triterpenoid glycosides were identified by multiple spectral methods.

Ultrasonic-assisted extraction, fatty acids identification of the seeds oil and isolation of chemical constituent from oil residue of Belamcanda chinensis.

Belamcanda chinensis is a common garden herb. The extraction technology of B. chinensis seed oil (BSO) was optimized by ultrasonic-assisted extraction (UAE) method, the composition, relative content of main fatty acids and physicochemical properties of BSO were determined, and the isolation, identification and determination of chemical constituent in BSO residue (BSOR) were also investigated.

Ultrasonic-assisted extraction and adsorption separation: Large-scale preparation of trans-ε-Viniferin, suffruficosol B and trans-Gnetin H for the first time.

In this study, a Standard Operating Procedure (SOP) for the large-scale extraction, enrichment, and separation of suffruticosol B (SB), trans-ε-Viniferin (TV), trans-gnetin H (TG) from oil tree peony seeds shell (PSS) was successfully constructed. The ultrasonic-assisted extraction (UAE), macroporous adsorption resin (MAR), and column chromatography (CC) were employed to extract, enrich and separate SB, TV and TG from PSS, and the conditions were optimized. The results implied that SB (1.

Could peony seeds oil become a high-quality edible vegetable oil? The nutritional and phytochemistry profiles, extraction, health benefits, safety and value-added-products.

Edible oil provides essential nutrients for human body and plays a very important role in human health. Looking for edible oil resource plants with high content and high-quality oil plays an important role in ensuring the adequate supply of edible oil. Peony seeds oil (PSO) was approved as a new resource food and became an edible vegetable oil for its rich content of fatty acids, total unsaturated fatty acids, linoleic acid and linolenic acid.

A comparative study of echinacoside, oleuropein content and antioxidant properties of different solvent extracts from Syringa pubescens Turcz.

Syringa pubescens Turcz is commonly used folk medicinal herb in west of Henan Province of China. In this work, water and various concentration of methanol, ethanol and acetone in water were used as solvent to extract echinacoside and oleuropein from S. pubescens.

Response surface methodology optimised solvothermal system enables an efficient extraction of echinacoside and oleuropein from Syringa pubescens Turcz.

Introduction: Syringa pubescens Turcz. was reported to be abundant in the Funiu Mountains of Henan Province and can be used to treat hepatitis and cirrhosis. In order to develop and utilise the resource, a fast and simple technique to extract bioactive compounds is needed.

DNA synergistic enzyme-mediated cascade reaction for homogeneous electrochemical bioassay.

Enzyme-mediated cascade reaction is applied to amplify signal and decrease the background because enzyme can catalyze inactive substrates into active substrates to generate the signal. In this work, Au nanoparticles, as signal probe, are used to load DNA probe and ALP for dual signal amplification. Based on enzyme-mediated cascade reaction, a homogeneous biosensor is constructed for bioassay by employing thrombin as target molecule.

Profiling and simultaneous quantitative determination of oligostilbenes in Paeonia ostii seed shell from different geographical areas in China and their comparative evaluation.

Introduction: The Paeonia ostii T. Hong & J. X.

Optimization of Ultrasound-Assisted Extraction of Monoterpene Glycoside from Oil Peony Seed Cake.

Ultrasound-assisted extraction (UAE) of total monoterpene glycosides extract (TMGE) from oil peony seed cakes was investigated. The extraction yield was optimized using response surface methodology (RSM). The chemical constituents of the monoterpene glycosides extract were isolated by repeated column chromatography, and the contents of the main isolated monoterpene glycosides in the oil peony seed cakes were determined by HPLC.

Quantitative investigation of the direct interaction between Hemagglutinin and fusion proteins of Peste des petits ruminant virus using surface Plasmon resonance.

Background: The specific and dynamic interaction between the hemagglutinin (H) and fusion (F) proteins of morbilliviruses is a prerequisite for the conformational rearrangements and membrane fusion during infection process. The two heptad repeat regions (HRA and HRB) of F protein are both important for the triggering of F protein.

Methods: In this study, the direct interactions of Peste des petits ruminants virus (PPRV) H with F, HRA and HRB were quantitatively evaluated using biosensor surface plasmon resonance (SPR).

Antioxidant Activities and Chemical Constituents of Flavonoids from the Flower of Paeonia ostii.

is a traditional medicinal plant popularly used in China. This study intended to evaluate the antioxidant properties and the chemical components of the flavonoid-rich extracts from the flowers of . The results showed that the flavonoid-rich extracts from the flowers of had strong scavenging capacities on 2,2'-Azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS), hydroxyls, superoxide anions, and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals in a dose-dependent manner.

Resveratrol trimers from seed cake of Paeonia rockii.

In the course of screening natural products for antibacterial activities, a total acetone extract of the seed cake of Paeonia rockii showed significant effects against bacterial strains. Bioactivity-guided fractionation of the EtOAc-soluble fraction of the total acetone extract resulted in the isolation and identification of five resveratrol trimers, including rockiiol C (1), gnetin H (2), suffruticosol A (3), suffruticosol B (4) and suffruticosol C (5). The relative configuration of these compounds was elucidated mainly by comprehensive 1D and 2D-NMR experiments.

Two bioactive compounds from the Chinese scorpion Buthusmartensii Karsch.

Two compounds, 3β-acetoxyl,2,14,22-trihydroxy,19-hydroxymethyl,9α,5β,14β-card-20(22)enolide (1) and 1,2,3,4-tetrahydro-6-hydroxy1-5-pyrimidinecarbox-aldehyde (2), were isolated from arthropods in scorpion, Buthus martensii Karsch, by medium pressure liquid chromatography with silica gel as stationary phase and RP-HPLC analysis technology. The structures were elucidated on the basis of NMR spectroscopic analysis and HR-ESI-MS determination. It was found that (1) is a novel compound and both compounds showed inhibitory activities against the Gram-positive bacteria Bacillus subtilis (minimum inhibitory concentrations = 15 μg/mL), with diameter of inhibition zone at ϕ = 6.

Secondary metabolites from the roots of Phlomis umbrosa.

The phytochemical study of the roots of Phlomis umbrosa Turcz afforded a new phenylethanoid glycoside, 3-hydroxy-4-methoxy-β-phenylethoxy-O-[2,3-diacetyl-α-l-rhamnopyranosyl-(1 → 3)]-4-O-cis-feruloyl-[β-d-apiofuranosyl-(1 → 6)]-β-d-glucopyranoside (1), and two new 28-noroleanane-derived spirocyclic triterpenoids, phlomishexaol C (2) and phlomishexaol D (3). Their structures were elucidated on the basis of 1D and 2D NMR analyses, in combination with high-resolution MS experiment.

[Chemical constituents from roots of Phlomis umbrosa].

Objective: To study the chemical constituents of Phlomis umbrosa.

Method: Chemical constituents were isolated by repeated column chromatography (Toyopearl HW-40C and preparative HPLC). The structures were elucidated on the basis of spectral data analysis.

Phenylethanoid glycosides from the roots of Phlomis umbrosa.

The phytochemical study of the roots of Phlomis umbrosa Turcz. afforded three new phenylethanoid glycosides, 3'''-acetyl-O-betonyoside D (1), 2''', 3'''-di-acetyl-O- betonyoside D (2), and 3''', 4'''-di-acetyl-O-betonyoside D (3), along with five known phenylethanoid glycosides. Their structures were elucidated on the basis of spectroscopic data.

5-(1H-Inden-2-yl)-1,3-benzodioxole.

In the title compound, C(16)H(12)O(2), the non-H atoms are coplanar with a mean r.m.s.

Synthesis of polysubstituted cyclopentenones via [4+1] reactions of TIPS-vinylketenes.

An efficient method for preparing a series of polysubstituted cyclopentenones from TIPS-vinylketenes and Köbrich reagent has been developed in this paper. Additionally, highly substituted cyclopentenones can be prepared via [4+1] reaction of TIPS-vinylketenes with tert-butyl isocyanide and there is a remarkable preference for formation of products with an exocyclic (Z)-imine moiety.

Nickel-catalyzed carboannulation reaction of o-bromobenzyl zinc bromide with unsaturated compounds.

A number of indenes have been prepared in good yields by treating o-bromobenzyl zinc bromide 1 with various terminal and internal alkynes in the presence of a nickel catalyst. The nickel-catalyzed carboannulation reaction was successfully extended to the synthesis of indane derivatives by reaction of 1 with acrylates and styrene.