Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Mercury is considered to be one of the most typical and toxic elements of heavy metals in the environment, threatening human health even at very low level. For this reason, we developed a new fluorescence-enhanced probe RTQ based on resazurin dye, which realizes the selective detection of Hg by using carbonothioate group as the recognition receptor. Probe RTQ can quantitatively assay Hg ranging from 0-0.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
December 2024
As a heavy metal contaminant, mercury ion (Hg) has caused great harm to environment and life. Mercury ions will migrate and transform in the environment and eventually accumulate in the human body, thus causing human poisoning. Therefore, it is of great significance to detect Hg in the environment and living bodies.
View Article and Find Full Text PDFThis study investigated the effects of microwave treatment combined with lysine and arginine on gluten-free quinoa sponge cakes. The results indicated that the addition of these amino acids during microwave treatment significantly increased the cakes' specific volume by 49 %. X-ray diffraction analysis revealed that cake crystallinity reached 56.
View Article and Find Full Text PDFDrug-induced liver injury (DILI) is a crucial factor that poses a significant threat to human health. DILI process leads to the changes of reactive oxygen species and reactive nitrogen species content in cells, which leads to oxidative and nitrosative stress in cells. However, the high reactivity of hypochlorous acid (HOCl) and peroxynitrite (ONOO⁻), combined with a lack of in situ imaging techniques, has hindered a detailed understanding of their roles in DILI.
View Article and Find Full Text PDFSingle-atom catalysts (SACs) are extensively applied in Fenton-like catalytic processes to treat water pollutants. However, the role of the porous structures of SACs supports in catalytic reactions is often overlooked despite its significant contribution to mass diffusion during the reaction. Herein, we adopted a hard-template-assisted approach to fabricate Fe-based SACs (Fe-SACs) featuring a mesoporous architecture.
View Article and Find Full Text PDFThe chloride channel transmembrane protein 16A (TMEM16A) possesses a calcium-activated property linked to tumor-promoting malignant phenotype and electrophysiological stability. Numerous studies have shown that TMEM16A exhibits aberrant amplification in various squamous cell carcinomas such as esophageal squamous cell carcinoma (ESCC) and is correlated with unfavorable outcomes of ESCC patients. Therefore, TMEM16A is considered as a promising therapeutic target for ESCC.
View Article and Find Full Text PDFDendritic cells (DCs) orchestrate both immune activation and immune tolerance in multiple sclerosis (MS). Manipulating the phenotypes and functions of DCs to boost their tolerogenic potential is an appealing strategy for treating MS and its animal model experimental autoimmune encephalomyelitis (EAE). Programmed cell death 1 (PD-1) delivers the immunoinhibitory signals by interacting with PD-1 ligand 1 (PD-L1), which plays a critical role in maintaining immune tolerance.
View Article and Find Full Text PDFFront Microbiol
September 2024
Introduction: LB-1 is a novel biocontrol strain that produces non-volatile metabolites that inhibit the growth of . However, the specific metabolites and antimicrobial mechanism of the strain LB-1 remains unclear.
Methods: In this study, the antifungal substances produced by strain LB-1, as well as the underlying mechanism of its inhibitory effect against , were explored using metabolomic and transcriptomic analysis.
Purpose: To assess the value of glutamate chemical exchange saturation transfer (GluCEST) after whole-brain radiotherapy (WBRT) as an imaging marker of radiation-induced brain injury (RBI) and to preliminarily show the feasibility of multiparametric MRI-guided organ at risk (OAR) avoidance.
Methods: Rats were divided into two groups: the control (CTRL) group (n = 9) and the RBI group (n = 9). The rats in the RBI group were irradiated with an X‑ray radiator and then subjected to a water maze experiment 4 weeks later.
Common wheat ( L.) is the world's primary food crop, and ensuring its safe production is of utmost importance for global peace and human development. However, the continuous threat of fungal diseases, including Fusarium head scab, rusts, sharp eyespot, and powdery mildew (PM), poses a significant challenge to production.
View Article and Find Full Text PDFItaconate is an immunoregulatory metabolite produced by the mitochondrial enzyme immune-responsive gene 1 (IRG1) in inflammatory macrophages. We recently identified an important mechanism by which itaconate is released from inflammatory macrophages. However, it remains unknown whether extracellular itaconate is taken up by non-myeloid cells to exert immunoregulatory functions.
View Article and Find Full Text PDFWhile Resolvin D1 (RvD1) shows promise in resolving inflammation in experimental autoimmune encephalomyelitis (EAE), its pro-resolving roles on dendritic cells (DCs) remain unknown, and the chemical instability of RvD1 poses significant challenges to its drug development. This study aims to investigate whether 4-(2'-methoxyphenyl)-1-[2'-[N-(2″-pyridinyl)-p-fluorobenzamido]ethyl]piperazine (p-MPPF), a novel chemically stable analogue of RvD1, can play a pro-resolving role in EAE, particularly on DCs, and if p-MPPF could serve as a potential substitute for RvD1. We showed that both RvD1 and p-MPPF mediated the resolution of inflammation in EAE, as evidenced by ameliorated EAE progression, attenuated pathological changes in the spinal cord, altered cytokine expression profile in serum, and reduced proportion of pro-inflammatory immune cells in the spleen.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
December 2024
The highly reactive hypobromous acid (HOBr), which is generated after chlorination process of tap water, acts as a precursor of toxic brominated disinfection by-products (Br-DBPs) and further reacts with organic matter. In addition, HOBr produced from the oxidation of Br during the degradation of pollutants by peroxymonosulfate (PMS, HSO) can be considered as the cause of the expedited degradation of pollutants. Therefore, it is particularly important to detect HOBr level in the water environment.
View Article and Find Full Text PDFEarly treatment significantly improves the survival rate of liver cancer patients, so the development of early diagnostic methods for liver cancer is urgent. Liver cancer can develop from viral hepatitis, alcoholic liver, and fatty liver, thus making the above diseases share common features such as elevated viscosity, reactive oxygen species, and reactive nitrogen species. Therefore, accurate differentiation between other liver diseases and liver cancer is both a paramount practical need and challenging.
View Article and Find Full Text PDFMalondialdehyde (MDA) and formaldehyde (FA) are highly active carbonyl substances widely present in both biological and abiotic systems. The detection of MDA and FA is of great significance for disease diagnosis and food safety monitoring. However, due to the similarity in structural properties between MDA and FA, very few probes for synergistically detecting MDA and FA were reported.
View Article and Find Full Text PDFIron is an essential element in the composition of living organisms and plays a crucial role in a wide range of biological activities. The human body primarily obtains essential iron through the consumption of food. Therefore, it is vital for the health of human body to maintain iron homeostasis.
View Article and Find Full Text PDFDeveloping multifunctional films with antibacterial, antioxidant, and sustained-release properties is a robust strategy for preventing contamination of perishable fruits by foodborne microorganisms. This study engineered a sustained-release biodegradable antibacterial film loaded with EGCG (Pickering emulsion (PE)/α-Cyclodextrin (α-CD)/Konjac glucomannan (KGM)) through multi-strategy cross-linking for fruit preservation. EGCG is stabilized using PE and incorporated into the α-CD/KGM inclusion compound; the unique structure of α-CD enhances EGCG encapsulation, while KGM provides the film toughness and surface adhesion.
View Article and Find Full Text PDFFew studies have been conducted to evaluate the efficacy of HAIC using circulating tumour cells (CTCs). In this study, a total of 100 patients who received HAIC treatment and CTC detection were selected. The results showed that after HAIC treatment, the levels of CTC, carbohydrate antigen 19-9 (CA19-9) and carcinoembryonic antigen (CEA) decreased.
View Article and Find Full Text PDFNitrite (NO) has been widely recognized by the international community as an important substance affecting water quality safety and human health, and the detection of NO has always been a hot topic for researchers. Fluorescent probe method is an emerging and ideal way for detecting NO. Due to the high dependence of the reported reactive NO fluorescent probes on strong acidic systems, using the idea of photochemistry, a fluorescence analysis method for detecting NO was proposed in this work to change the necessity of strong acidic solutions in probe detection process.
View Article and Find Full Text PDFHydrogen peroxide (HO), as one of reactive oxygen species (ROS) widely present in the human body, is involved in a variety of physiological activities. Many human diseases are associated with abnormal levels of HO in the body. Mitochondria are the main organelles producing HO in the human body, and monitoring the level of HO in mitochondria can help to deepen the understanding of the detailed functions of HO in physiological activities.
View Article and Find Full Text PDFCell Mol Biol (Noisy-le-grand)
March 2024
Myocardial ischemia/reperfusion injury (MIRI) is an irreversible adverse event during the management of coronary heart disease that lacks effective controls. The underlying mechanism of MIRI still requires further investigation. Recent studies have suggested that overexpression of ATF3 protects against MIRI by regulating inflammatory responses, ferroptosis, and autophagy.
View Article and Find Full Text PDFBoron carbonitride (BCN) films containing hybridized bonds involving B, C, and N over wide compositional ranges enable an abundant variety of new materials, properties, and applications; however, their electronic performance is still limited by the presence of structural and electronic defects, yielding sluggish mobility and electrical conductivity. This work reports on mechanically stable BCN films and their corresponding optical and electronic properties. The ternary BCN films consisting of hybridized B-C-N bonds have been achieved by varying N2 flow by the radio frequency magnetron sputtering method.
View Article and Find Full Text PDFPlant pathogenic fungi elaborate numerous detoxification strategies to suppress host reactive oxygen species (ROS), but their coordination is not well-understood. Here, we show that Sirt5-mediated protein desuccinylation in Magnaporthe oryzae is central to host ROS detoxification. SIRT5 encodes a desuccinylase important for virulence via adaptation to host oxidative stress.
View Article and Find Full Text PDFObjective: To explore the expression and functional role of Krüpple-like factor 4 (KLF4) protein stimulated by tumor necrosis factor α (TNF-α) in SK-BR-3 breast cancer cells.
Methods: SK-BR-3 cells were stimulated with various concentrations of TNF-α at 0, 1, 5, 10, and 20 ng/mL. Expression levels of KLF4 protein were detected by Western blotting.