Lett Appl Microbiol
December 2024
Based on the biodegradation of Welan gum, this paper studies the properties of Welan gum degrading enzymes, degradation rules, and the application of Welan gum oligosaccharides. In order to study the biodegradation of Welan gum, a strain W2-3 capable of degrading Welan gum, was isolated from soil and identified as Paenibacillus sp. The properties of Welan gum degrading enzymes, degradation rules, and the application of Welan gum oligosaccharides were studied.
View Article and Find Full Text PDFBackground: Bone marrow mesenchymal stem cells (BM-MSCs) transplantation shows promise for treating ischemic stroke, but the ischemic environment that follows cerebral infarction hinders the survival of transplanted cells. We aimed to study the effects of puerarin (Pue) in combination with BM-MSCs on cerebral ischemic injury.
Methods: After middle cerebral artery occlusion (MCAO) models were prepared by suture-occluded method, rats were randomly allocated to the sham, MCAO, Pue (50 mg/kg), BM-MSCs (2×106), and BM-MSCs+Pue groups.
The inefficient decomposition of polysaccharides, particularly branched polysaccharides limits their large-scale industrial applications. Further understanding and modification of glycoside hydrolases (GHs) processivity is expected to overcome this limitation. Here, a novel xanthan-binding CBM (MiXBM), which was supposed to alter the processivity of GHs, was systematically characterized.
View Article and Find Full Text PDFEcotoxicol Environ Saf
November 2024
To study the biocompatibility of nanohydroxyapatite (nmHA)-SiO fiber material and its efficacy in guided bone regeneration. ① The cytotoxicity of the nmHA-SiO fiber material to MC3T3-E1 cells was determined by CCK-8 assay. The adhesion of cells on the surface of the material was observed.
View Article and Find Full Text PDFChitin is a polysaccharide similar to cellulose that contains abundant hydrogen bonds. Expansin-like proteins disrupt hydrogen bond networks, causing cellulose to swell and accelerating its degradation. We examined the effects of pretreatment with two expansin-like proteins, CxEXL22 ( sp.
View Article and Find Full Text PDFObservational studies have suggested that insulin resistance (IR) is associated with hypertension and various cardiovascular diseases. However, the presence of a causal relationship between IR and cardiovascular disease remains unclear. Here, we applied Mendelian randomization (MR) approaches to address the causal association between genetically determined IR and the risk of cardiovascular diseases.
View Article and Find Full Text PDFBackground: This review summarizes the factors influencing the efficacy and safety of the COVID-19 vaccine in LTR through meta-analysis, hoping to provide strategies for vaccine use.
Methods: Electronic databases were screened for studies on mRNA vaccines in LTR. The primary outcome was the pooled seroconversion rate, and the secondary outcome was the incidence of adverse events+breakthrough infections.
Cell Mol Biol (Noisy-le-grand)
August 2023
A hypertrophic scar is a complex medical problem. The study of triamcinolone acetonide for the treatment of scars is necessary. The 7mm full-thickness skin wounds were created on the back of BALA/c mice to construct the animal scar model.
View Article and Find Full Text PDFEctomycorrhizal (EM) fungi play a vital role in ensuring plant health, plant diversity, and ecosystem function. However, the study on fungal diversity and community assembly of EM fungi associated with herbaceous plants remains poorly understood. Thus, in our study, and in the subalpine meadow of central Inner Mongolia, China were selected for exploring EM fungal diversity and community assembly mechanisms by using llumina MiSeq sequencing of the fungal internal transcribed spacer 2 region (ITS2).
View Article and Find Full Text PDFLaparoscopic pancreatoduodenectomy (LPD) is a demanding abdominal operation that necessitates meticulous surgical skills and teamwork. The management of the pancreatic uncinate process is one of the most important and difficult processes in LPD because of its deep anatomical location and difficult exposure. Complete resection of the uncinate process and mesopancreas has become the cornerstone of LPD.
View Article and Find Full Text PDFPolycrystalline erbium-doped Y(AlGa)O (Er-YAGG) nanofilms with various Al/Ga compositions are deposited on silicon using atomic layer deposition followed by annealing at different temperatures. The Al/Ga ratios and the corresponding annealing temperatures required for crystallization are confirmed by investigating the diffraction patterns and micro-morphologies. The co-alloying of Al and Ga compositions controllably changes the lattice constant and impacts the grain growth.
View Article and Find Full Text PDFBright white emission is obtained under electrical excitation from dysprosium doped YGaO garnet (YGG:Dy) nanofilms fabricated by atomic layer deposition on silicon substrates. Electroluminescence (EL) composed of yellow (580 nm) and blue (482 and 492 nm) emission corresponds to the CIE chromaticity coordinates of (0.3568, 0.
View Article and Find Full Text PDFZinc (Zn) is a widespread industrial pollutant that has detrimental effects on plant growth and development. Photoprotective properties ensure plant survival during stress by protecting the photosynthetic apparatus. This occurs via numerous mechanisms, including non-photochemical quenching (NPQ), cyclic electron flow (CEF) and the water-to-water cycle (WWC).
View Article and Find Full Text PDFY(GdBi)BO phosphors (x = 0, 0.2, 0.4, 0.
View Article and Find Full Text PDFTo date, due to the low accessibility of enzymes to xanthan substrates, the enzymolysis of xanthan remains deficient, which hinders the industrial production of functional oligoxanthan. To enhance the enzymatic affinity against xanthan, the essential role of two carbohydrate binding modules-CBMx and CBM84, respectively, derived from sp. XT11 and sp.
View Article and Find Full Text PDFSingle degradation systems based on dielectric barrier discharge plasma (DBDP) or persulfate (PS) oxidation cannot achieve the desired goals (high degradation efficiency, high mineralization rate, and low product toxicity) of degrading atrazine (ATZ) in river sediment. In this study, DBDP was combined with a PS oxidation system (DBDP/PS synergistic system) to degrade ATZ in river sediment. A Box-Behnken design (BBD) including five factors (discharge voltage, air flow, initial concentration, oxidizer dose, and activator dose) and three levels (- 1, 0, and 1) was established to test a mathematical model by response surface methodology (RSM).
View Article and Find Full Text PDFBackground: The association between systemic iron status and lung function was conflicting in observational studies. We aim to explore the potential causal relationships between iron status and the levels of lung function using the two-sample Mendelian randomization (MR) design.
Methods: Genetic instruments associated with iron status biomarkers were retrieved from the Genetics of Iron Status (GIS) consortium ( = 48,972).
There are many contaminations in barley that are often associated with malt and beer quality issues. Thus, it is important to find a biological antifungal agent to prevent the growth of during malting. Minimum inhibition concentration (MIC) of chitosan for mycelial growth and spore germination of was 2.
View Article and Find Full Text PDFIntroduction: Pulmonary hypertension secondary to left heart disease (PH-LHD) is a common and fatal disease. However, no effective therapeutic targets have been identified.
Objectives: Here, we set out to illustrate the functional role and underlying mechanisms of fatty acid-binding protein 5 (FABP5) in PH-LHD development.
Background: The pathogenic mechanism of dilated cardiomyopathy (DCM) remains to be defined. This study aimed to identify hub genes and immune cells that could serve as potential therapeutic targets for DCM.
Methods: We downloaded four datasets from the Gene Expression Omnibus (GEO) database: GSE141910, GSE3585, GSE42955 and GSE79962.
Polycrystalline erbium-doped YGaO garnet (YGG) nanofilms are deposited by atomic layer deposition on Si substrates after annealing down to 800 °C, based on which ∼1.53 μm electroluminescence (EL) devices are fabricated. The optimal EL performance depends on the adjustment of Y/Ga ratio and GaO interlayer thickness within the nanolaminates, which exert no prominent impact on the crystallization and film morphology of YGG nanofilms.
View Article and Find Full Text PDFThe wide use of nano-antibacterial materials has triggered concerns over the development of nanomaterials-associated bacterial resistance. Two-dimensional (2D) black phosphorus (BP) as a new class of emerging 2D nanomaterial has displayed excellent antibacterial performance. However, whether bacteria repeatedly exposed to 2D BP can develop resistance is not clear.
View Article and Find Full Text PDFAppl Biochem Biotechnol
September 2023
Diabetic retinopathy (DR) is the key cause of blindness and visual impairment in diabetes patients around the world. The high levels of oxidative stress in diabetes patients cause diabetic retinopathy. In addition to being an antioxidant, Bergenin also works as an immunosuppressant, an anti-inflammatory, and anticarcinogenic against hepatocarcinoma.
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