Terrain effect is challenging for understanding atmospheric environment changes under complex topography. This study targets the Sichuan Basin (SCB), a deep basin isolated by plateaus and mountains in Southwest China, by employing WRF-Chem with integrated process rates (IPR) analysis to characterize the terrain-driven seasonal variations of tropospheric ozone (O) with atmospheric physical and chemical processes. Results show that the basin terrain exerts reversed impacts on regional air quality changes by aggravating summertime and alleviating wintertime near-surface O with the relative contributions oscillating seasonally between -40% and 40% in SCB.
View Article and Find Full Text PDFPapillary thyroid cancer (PTC) is the most common form of thyroid cancer and is characterized by its tendency for lymphatic metastasis, leading to a poor prognosis. Tetraspanin 1 (TSPAN1) is a member of the tetra-transmembrane protein superfamily and has been implicated in tumorigenesis and cancer metastasis in various studies. However, the role of TSPAN1 in PTC tumor development remains unclear.
View Article and Find Full Text PDFMicroalgal sensors are widely recognized for their high sensitivity, accessibility, and low cost. However, the current dilemma of motion-induced spatial phase changes and concentration-related multiple scattering interferes with induced test instability and limited sensitivity, which has hindered their practical applications. Here, a differentiated strategy, named confinement-enhanced microalgal biosensing (C-EMB), is developed and proposed to pave the way.
View Article and Find Full Text PDFCompound eyes are high-performing natural optical perception systems with compact configurations, generating extensive research interest. Existing compound eye systems are often combinations of simple uniform microlens arrays; there are still challenges in making more ommatidia on the compound eye surface to focus to the same plane. Here, a biomimetic gradient compound eye is presented by artificially mimicking dragonflies.
View Article and Find Full Text PDFBiofilms formed by pathogenic or spoilage microorganisms have become serious issues in the dairy industry, as this mode of life renders such microorganisms highly resistant to cleaning-in-place (CIP) procedures, disinfectants, desiccation, and other control strategies. The advent of omics techniques, especially the integration of different omics tools, has greatly improved our understanding of the features of microbial biofilms, and provided in-depth knowledge on developing effective methods that are directly against deleterious biofilms. This review provides novel insights into the single use of each omics tool and the application of multiomics tools to unravel the mechanisms of biofilm formation, specific molecular phenotypes exhibited by biofilms, and biofilm control strategies.
View Article and Find Full Text PDFExposure to sub-inhibitory concentrations (sub-MICs) of antibiotics could induce the biofilm formation of microorganisms, but its underlying mechanisms still remain elusive. In the present work, biofilm formation by Salmonella Typhimurium M3 was increased when in the presence of tetracycline at sub-MIC, and the highest induction was observed with tetracycline at 1/8 MIC. The integration of RNA-sequencing and untargeted metabolomics was applied in order to further decipher the potential mechanisms for this observation.
View Article and Find Full Text PDFPurpose: Hepaticojejunostomy anastomosis (HJA) is the most challenging aspect in single-port laparoscopic choledochal cystectomy and Roux-en-Y hepaticojejunostomy (SPCH) in children, especially in small-diameter anastomoses (diameters less than 5 mm), which are more susceptible to anastomotic stricture. We developed the continuous submucosal technique for HJA (CS-HJA) to lessen postoperative complications. The purpose of this study is to introduce our preliminary experiences with CS-HJA.
View Article and Find Full Text PDFPurpose: The aim of this study was to develop and validate a nomogram for predicting surgical intervention in pediatric intussusception after hydrostatic reduction.
Methods: Children with intussusception who had treated with sonographically guided saline hydrostatic reduction as an initial treatment were enrolled in this study. The enrolled patients were randomly selected for training and validation sets, and the split ratio was 7:3.
Digital bio-detection has become one of the most appealing methods in recent years due to its excellent performance with ultra-sensitivity in detection of low-abundance targets. Traditional digital bio-detection needs the utilization of micro-chambers for physical isolation of targets, while the recently developed beads-based micro-chamber free one is attracting extensive attention, although there exist the disadvantages of overlaps between positive ("1") and negative ("0") signals as well as the decreased detection sensitivity in multiplexed mode. Here we propose a feasible and robust micro-chamber free digital bio-detection for multiplexed and ultrasensitive immunoassay based on encoded magnetic microbeads (EMMs) and tyramide signal amplification (TSA) strategy.
View Article and Find Full Text PDFObesity-induced adipose chronic inflammation is closely related to the development of insulin resistance and T2DM. Tripeptides l-valyl-l-prolyl-l-proline (VPP) and l-isoleucyl-l-prolyl-L-proline (IPP) derived from bovine casein have been reported to prevent inflammatory changes and mitigate insulin resistance in adipocytes. In this study, we aimed to investigate the influence of casein hydrolysates (CH) containing VPP and IPP on a high fat diet (HFD)-induced obese mice and cytokine TNF-α-induced adipocytes.
View Article and Find Full Text PDFDue to epilepsy, children have faced several difficulties and challenges. Epilepsy shows an impact on a person quality of life (QoL) which can be associated with psychological, physical, and social aspects and can have a greater impact on the QoL of the person than that do through another chronic disease(s). Health-related quality of life (HRQoL) is a multidimensional concept that includes emotional, mental, physical, behavioral, and social aspects of the well-being and functioning of the patients.
View Article and Find Full Text PDFPedestrian avoidance behavior often occurs in underground public spaces that connect urban rail transit and commercial complexes. This study proposes a co-monitoring method based on eye movement and electroencephalogram (EEG) to study pedestrian avoidance behavior in a real environment, taking the underground public space of the commercial complex of the Luoxiong Road railway station in Wuhan City as an experimental site. It is found that pedestrian avoidance behavior is influenced by both personal and environmental factors.
View Article and Find Full Text PDFThe quick and convenient fabrication of tumor spheroids models has been pursued for clinical drug discovery and personalized therapy. Here, uniform three-dimensional (3D) tumor spheroids are quickly constructed by acoustically excited bubble arrays in a microfluidic chip and performed drug response testing . In detail, bubble oscillation excited by acoustic waves induces second radiation force, resulting in the cells rotating and aggregating into tumor spheroids, which obtain controllable sizes ranging from 30 to 300 μm.
View Article and Find Full Text PDFIn this study, twenty-two baby foods including cereal-based products and powdered infant formula (PIF) obtained from local markets were comprehensively investigated for their bacterial contamination using culture-dependent and high-throughput sequence (HTS) methods. In addition, the genetic diversity and biofilm-forming capacity of the most abundant species were analyzed using random amplified polymorphic DNA (RAPD) and crystal violet staining assay, respectively. Results showed that 170 mesophilic isolates collected from 22 samples were clustered into 15 genera and 41 species.
View Article and Find Full Text PDFThe use of probiotics has been one of the effective strategies to restructure perturbed human gut microbiota following a disease or metabolic disorder. One of the biggest challenges associated with the use of probiotic-based gut modulation strategies is to keep the probiotic cells viable and stable during the gastrointestinal transit. Biofilm-based probiotics delivery approaches have emerged as fascinating modes of probiotic delivery in which probiotics show significantly greater tolerance and biotherapeutic potential, and interestingly probiotic biofilms can be developed on food-grade surfaces too, which is ideal for the growth and proliferation of bacterial cells for incorporation into food matrices.
View Article and Find Full Text PDFFollowing the publication of the above article, an interested reader drew to the authors' attention that the 'NB‑4' and 'NB‑2' panels for the invasion and migration assays shown in Fig. 3B and C on p. 113 appeared to contain overlapping data, such that the data may have been derived from the same original source, even though the panels were intending to have shown results obtained under different experimental conditions.
View Article and Find Full Text PDFThermophilic bacteria, such as Bacillus licheniformis, Geobacillus stearothermophilus, Bacillus Subtilis and Anoxybacillus flavithermus, are detected frequently in milk powder products. Biofilms of those strains act as a major contamination to milk powder manufactures and pose potential risks in food safety. In this study, we explored the developing process of multi-species biofilm formed by the four thermophilic bacteria on stainless steel immerged in skimmed milk.
View Article and Find Full Text PDFAims: Thermophilic spoilage bacteria and their biofilms formed during milk powder processing posed threats to safety and quality of dairy products. This research aims to understand more about the bacterial behaviours and their social models in biofilms.
Methods And Results: Interactional effects from both extracellular metabolites and co-culture on biofilms formation of the contaminating thermophilic bacteria were determined.
Background: Terminal differentiation-induced ncRNA (TINCR) plays an essential role in epidermal differentiation and is involved in the development of various cancers.
Methods: qPCR was used to detect the expression level of TINCR in tissues and cell lines of laryngeal squamous cell carcinoma (LSCC). The potential targets of TINCR were predicted by the bioinformation website.
VPP (Val-Pro-Pro) and IPP (Ile-Pro-Pro) are two famous antihypertensive peptides with possible benefits for type 2 diabetes mellitus (T2DM). The study was aimed to investigate the effect of peptide analogues of VPP and IPP on glucose uptake activity in L6 myotubes. The analogues were designed by replacing the N-terminal, middle, or C-terminal amino acid residues of VPP and IPP with one amino acid at a time from five amino acid groups (polar, nonpolar, basic, acidic, and aromatic amino acids).
View Article and Find Full Text PDFBiofilms constitute a protective barrier for foodborne pathogens to survive under stressful food processing conditions. Therefore, studies into the development and control of biofilms by novel techniques are vital for the food industry. In recent years, foodomics techniques have been developed for biofilm studies, which contributed to a better understanding of biofilm behavior, physiology, composition, as well as their response to antibiofilm methods at different molecular levels including genes, RNA, proteins and metabolic metabolites.
View Article and Find Full Text PDFIntroduction: Lindera aggregata is a main Chinese herb of ancient prescriptions Suoquan pill applied for treating the chronic kidney disease (CKD). A large number of application histories of Lindera aggregata in the treatment of CKD have been recorded in Chinese traditional medical literature. The previous reports revealed that Lindera aggregata can treat CKD.
View Article and Find Full Text PDFEgg white is a rich source of bioactive proteins that are essential to provide protection to the embryo in yolk. There is an ongoing interest in identifying novel egg white proteins; it is not known however if peptides are also present in egg white. The objectives of the study were to identify low molecular peptides occurring naturally in egg white using a peptidomics approach and to determine their potential antioxidant activity.
View Article and Find Full Text PDFInt J Food Microbiol
January 2021
Bacillus licheniformis is a major source of microbial contamination to dairy industry, and biofilm formation by this spoilage bacterium aggravates the safety issues. Especially for milk powder manufactures, the evaporation process at temperatures between 50 °C and 70 °C before spray drying, is a critical control point against thermophilic bacteria multiplication. In our study, metabolomics analysis was performed to investigate dynamic changes of the metabolites and their roles during process of biofilm development of B.
View Article and Find Full Text PDFModern food processing environment provides an ideal condition for biofilms formation by foodborne and spoilage microorganisms on different food contact surfaces. It is widely acknowledged that biofilm has become a serious problem in the food industry, as the biofilm growth mode induces microbial resistance to chemical disinfection. The persistence of biofilms after cleaning and disinfection procedures may result in foodborne illness and food spoilage, emphasizing the importance of preventing biofilms in food production facilities.
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