Covalent organic framework-based solid phase microextraction coupled with electrospray ionization mass spectrometry for the quantitative assessment of abnormal bile acids by triclosan exposure in mice.

Bile acids, a representative diagnostic indicator of liver function, are used to visualize the extent of liver injury. Numerous studies have shown that triclosan (TCS) exposure leads to abnormal bile acid metabolism. As a result, there is a requirement to develop a fast and smart means to quantitatively monitor abnormal bile acids from exposure to triclosan in bio-sample.

Phyto-metabolomic investigation of biologically active fraction of leaf.

(Wight & Arn.) Benth., leaves are used traditionally in variety of diseases.

Loop-mediated isothermal amplification assays for the detection of antimicrobial resistance elements in Vibrio cholera.

Background: The bacterium Vibrio cholerae causes diarrheal illness and can acquire genetic material leading to multiple drug resistance (MDR). Rapid detection of resistance-conferring mobile genetic elements helps avoid the prescription of ineffective antibiotics for specific strains. Colorimetric loop-mediated isothermal amplification (LAMP) assays provide a rapid and cost-effective means for detection at point-of-care since they do not require specialized equipment, require limited expertise to perform, and can take less than 30 min to perform in resource limited regions.

Three new xanthones and other anti-inflammatory components from the aerial parts of Hypericum beanii.

Hypericum beanii, a traditional folk medicine plant, has been employed in treating various inflammation-related diseases. In this study, three new prenylated xanthones, named beanigenin A (1), beanigenin B (2), and beanigenin C (3), along with twenty-five known compounds (4-28), were isolated from the aerial parts of H. beanii.

Endoscopic sleeve gastroplasty plus lifestyle intervention in patients with MASH: a multicentre, sham-controlled, randomized trial.

Metabolic dysfunction-associated steatohepatitis(MASH) is commonly seen in biopsy proven steatotic liver disease(SLD). Life-style intervention reaching a weight loss higher than 10% promotes MASH resolution, but this goal is only achieved by a small number of patients. Endoscopic sleeve gastroplasty(ESG) has recently emerged as a safe and effective option to promote weight loss in obese population.

Differential prevalence of arsenic speciation in the kelps Laminaria digitata and L. hyperborea.

Large variability in highly toxic inorganic arsenic (iAs) has previously been reported for the kelp Laminaria digitata. This study aimed to compare iAs concentrations in two morphologically similar kelps species (L. digitata and L.

Isolation of mixed valence charge-neutral Ag, and dicationic Ag nano-clusters stabilized by carbene-phosphaalkenides.

Cyclic alkyl(amino) carbene (cAAC)-supported phosphaalkenides (cAACP) have been employed as ligands for the isolation of two atomically precise mixed valence paramagnetic AgI/012Cl, and AgI/010, nano-clusters [(Me-cAACP)AgCl] (2), and [(Me-cAACP)Ag](NTf) (4). 2 and 4 have been structurally characterized by single-crystal X-ray diffraction revealing the presence of three Ag atoms, nine Ag ions (2); and two Ag atoms, eight Ag ions (4), respectively. The clustering inorganic unit AgCl in 2 has been found to be surrounded by six mono-anionic μ-cAACP moieties having 3-bar symmetry.

The effect of COVID-19 pandemic on routine surgical turnover in otolaryngology: a retrospective analysis of service dynamics utilizing finalized, cumulative data from a tertiary-care teaching institute in India.

Objective: To ascertain the effect of coronavirus (COVID-19) pandemic on routine (non-COVID) Otolaryngology and Head-Neck Surgery (ORL-HNS) turnover in a tertiary-care teaching institute, utilizing the cumulated, finalized dataset one year after the pandemic ceased to be a "public health emergency of international concern".

Methodology: In this retrospective analysis, annual routine turnover in the ORL-HNS categories (otology, rhinology/skull-base, head-neck/airway, emergency, miscellaneous) for the COVID-period (2020-21) were individually compared with pre-COVID (2017-19) data. Subsequently, categorical turnovers, along with the major surgeries in each category, were compared trimester-wise in the COVID-period.

Programmable Synthesis of Cationic Azaperylenes via Rh(III)-Catalyzed Multiple C-H/N-H Bonds Activation and Annulation.

Rh(III)-catalyzed dual N-H and triple C-H activation/(4 + 2) annulation of 2-aryl-2,3-dihydro-1-perimidines and alkynes has been disclosed to construct 4,5,14,15-tetrasubstituted cationic azaperylenes with high yields (up to 95%) and broad scope. Tandem (4 + 2) annulation of 1-perimidines with vinylene carbonate and alkynes affords 4,5-disubstituted azaperylene salts, and -alkynyl 1-perimidines undergo an intra- and intermolecular annulation cascade to give 4,5,14-trisubstituted targets. Most of the intermediates were detected by ESI-MS, indicating a convincible mechanism including three possible paths.

An Aromatic Proton Transfer to the o-Amine Function: A Naphthoquinonyne Intermediate and Cycloaddition Reactions.

The article reports a hitherto-unknown aromatic proton transfer (APT) to the o-amine function chelated to manganese(II) ion and disintegration of the molecule generating an aryne intermediate. The reaction of (NQ)-NH(AQ) (LH) with manganese(II) acetate in boiling DMF generates [Mn(L)], where the LH ligands undergo disintegration forming manganese(II) complexes of AQ and an 1,4-naphthoquinonyne intermediate based on benzoquinone ring, that has been defined as [NQ-2H] (NQ and AQ abbreviate respectively 1,4-naphthoquinone and 8-aminoquinoline fragments). The fragmentation reaction of LH depends on the metal precursor used, solvent and temperature.

A Closed-Loop Ear-Worn Wearable EEG System with Real-Time Passive Electrode Skin Impedance Measurement for Early Autism Detection.

Autism spectrum disorder (ASD) is a chronic neurological disorder with the severity directly linked to the diagnosis age. The severity can be reduced if diagnosis and intervention are early (age < 2 years). This work presents a novel ear-worn wearable EEG system designed to aid in the early detection of ASD.

Structural and Thermal Characterization of Bluepha Biopolyesters: Insights into Molecular Architecture and Potential Applications.

This study presents an in-depth molecular and structural characterization of novel biopolyesters developed under the trademark Bluepha. The primary aim was to elucidate the relationship between chemical structure, chain architecture, and material properties of these biopolyesters to define their potential applications across various sectors. Proton nuclear magnetic resonance (H NMR) analysis identified the biopolyesters as poly[()-3-hydroxybutyrate--()-3-hydroxyhexanoate] (PHBH) copolymers, containing 4% and 10% molar content of hydroxyhexanoate (HH) units, respectively.

Combined Metabolome and Transcriptome Analyses Reveals Anthocyanin Biosynthesis Profiles Between Purple and White Potatoes.

Colored potatoes with red and purple skin or flesh possess significant nutritional value and health benefits due to their rich anthocyanin content. To investigate the genetic mechanisms underlying color formation, the high-anthocyanin-content purple-skinned and purple-fleshed potato line 15-12-16, and the white-skinned and white-fleshed Xiazhai 65 variety were used for ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS/MS) analysis, which was conducted to identify and quantify anthocyanins. RNA sequencing was performed to analyze the transcriptome.

The Antioxidant, Antimicrobial, and Antitumor Proprieties of Flavonol-Rich Extracts from (Wild Garlic) Leaves: A Comparison of Conventional Maceration and Ultrasound-Assisted Extraction Techniques.

Despite the growing interest in using natural compounds for disease prevention and treatment, (wild garlic), known for its therapeutic properties, has not been extensively studied for its chemical composition and biological activities. Therefore, this study aims to explore the in vitro antioxidant, antibacterial, and antitumor activities of extracts according to their functional phytochemical profile, while assessing whether ultrasound-assisted extraction (UAE) enhances bioactive properties in comparison to conventional maceration (CM). Both extracts were characterized by spectrophotometric methods and LC-ESI+-MS.

Bioactive Potential of Chitosan-Oleic Acid Nanoparticles Loaded with Lemon Peel Essential Oil for Topical Treatment of Vulvovaginal Candidiasis.

The rising incidence of vulvovaginal candidiasis (VVC) has been leading to the development of alternative antifungal therapies. This study aimed to develop a topical chitosan-oleic acid nanoparticle (CH-OA-NP) cream loaded with lemon peel essential oil (LPEO) for VVC treatment. The characterization of the optimal nanoparticle formulation (F4: 10 g/L CH, 2:1 OA/LPEO ratio) showed high encapsulation efficiency, stability, and controlled release.

Phytochemical Profile and Biological Activity of the Ethanol Extracts from the Aerial Parts of (Adolf.) Lipsch. Growing in Kazakhstan.

is a lesser-known plant species belonging to the genus that grows in Kazakhstan. The aim of this study was to characterize the composition of the ethanolic, water, and hydroethanolic extracts from the aerial parts of by HPLC-ESI-QTOF-MS/MS to isolate the major compound isoquercitrin by HSCCC (High-Speed Counter-Current Chromatography) and to determine the cytotoxicity and anti-inflammatory potential of the extracts produced with this plant. Fingerprinting of the analyzed extracts showed the presence of a multitude of metabolites comprising polyphenols, organic acids, and coumarins, and only trace quantities of cardiac glycosides in the analyzed samples.

Chemical Profile and Biological Properties of Methanolic and Ethanolic Extracts from the Aerial Parts of L. Growing in Central Asia.

The genus has been used in folk medicine for centuries; however, the data concerning L. are scarce. This study aimed at investigating the chemical composition of methanolic and ethanolic extracts from the aerial parts of collected in Kazakhstan and evaluating their antimicrobial and antioxidant properties, with special attention being paid to polyphenols.

Improved Detection of Polysulfated Oligosaccharides by Mass Spectrometry Applicable to Miniaturized Samples.

The study of biomolecules and their interactions in their natural environment requires increasingly sophisticated technological and methodological developments. The complexity of these developments is due, among other things, to the nature of these molecules and the small quantities available depending on their origin. In this context, this study focuses on the conditions for improving the detection of glycosaminoglycans on a miniaturized scale by mass spectrometry.

Determination of Flavonoid Glycoside Isomers Using Vision Transformer and Tandem Mass Spectrometry.

A vision transformer (ViT)-based deep neural network was applied to classify the flavonoid glycoside isomers by analyzing electrospray ionization tandem mass spectrometry (ESI-MS/MS) spectra. Our model successfully classified the flavonoid isomers with various substitution patterns (3-O, 6-C, 7-O, 8-C, 4'-O) and multiple glycosides, achieving over 80% accuracy during training. In addition, the experimental spectra from flavonoid glycoside standards were acquired with different adducts, and our model showed robust performance regardless of the experimental conditions.

Development of a Tandem Mass Spectral Library for the Detection of Triterpenoids in Plant Metabolome Based on Reference Standards.

Plant triterpenoids represent a diverse group of secondary metabolites and are thought to be valuable for therapeutic applications. For drug development, lead optimization, better knowledge of biological pathways, and high-throughput detection of secondary metabolites in plant extracts are crucial. This paper describes a qualitative method for the rapid and accurate identification of various triterpenoids in plant extracts using the LC-HR-ESI-MS/MS tool in combination with the data-dependent acquisition (DD) approach.

Phytochemical, Antioxidant, Antimicrobial and Safety Profile of L. Extract Obtained from Romania.

L., also known as licorice, belongs to the family and is one of the most commercially valuable plants worldwide, being used in the pharmaceutical, cosmetic, and food industries, both for its therapeutic benefits as well as for the sweetening properties of the extract. This study evaluates the phytochemical composition, the biological activities, and the safety profile of a methanolic extract of licorice root (LRE) obtained from Romania.

Phenolic Characterization and Quality Evaluation of Herbal Coffee from Roasted Juniper Berry Fruits ( L.): Elucidating the Impact of Roasting.

Consumers' demand for foods with health benefits and different tastes is on an increasing trend. Juniper berries ("andiz" in Turkish) are the fruits of perennial, aromatic, and resinous trees. In this study, quality properties of herbal coffee samples obtained from juniper berries roasted at three different temperatures (120, 160, and 200 °C) and four different durations (10, 25, 32.

Hypersine H, One Undescribed Xanthone From the Hypericum elodeoides Choisy With Anti-Neuroinflammation Activity.

One undescribed xanthone, hypersine H (1), together with three known analogs, 3,7-dihydroxy-1-methoxyxanthone (2), 1,7-dihydroxy-5,6-dimethoxyxanthone (3), and 1,5-dihydroxy-6,7-dimethoxyxanthone (4), were isolated from the whole plant of Hypericum elodeoides Choisy. Their structures, including absolute configurations, were unambiguously elucidated by HR-ESI-MS, extensive NMR spectroscopy, and quantum chemical calculation of electronic circular dichroism (ECD) method. Moreover, the anti-neuroinflammation activities of isolated compounds were evaluated.

Enrichment of polymethoxyflavones from citrus fruits using an optimized enzyme/acid-catalyzed hybrid hydrolysis process and its influence on mice gut microbiota.

Citrus polymethoxyflavones (PMFs) have considerable medicinal, health-promoting, and commercial importance. To provide a stable and reliable source of PMFs, an efficient process of large-scale preparation is warranted. Here, an extraction model for enriching PMFs from citrus fruits was proposed using an enzyme/acid-catalyzed hybrid hydrolysis approach.

Polyhydroxyalkanes from Sieb. et Zucc.

Four polyhydroxyalkanes were isolated from the CHCl part of , including two new ones, (2,3)-3-isopropylpent-3-ene-1,2,5-triol () and (4,2)-4,5-dihydroxy-2,3-dimethylpent-2-enoic acid (); as well as one new natural product, 3-methylbut-3-ene-1,2-diol () and one known compound, 4-methyl-3-methylenepentane-1,2-diol (). The structures were determined by physicochemical properties and spectroscopic methods including 1D, 2D NMR, IR, HR-ESI-MS, and ECD data. The cytotoxic activity of compounds against the human cancer lines A549, H460, and HepG2 cell lines of the isolated compounds was evaluated by the CCK8 method.