As an infectious disease that poses a significant threat to the rapidly growing pig breeding industry, the detection of Haemophilus parasuis (HPS) is often compromised by various interfering substances present in the test sample during quantitative real-time PCR (qPCR). The rapid detection of HPS is important for the isolation of infectious pigs and their treatment. We designed and optimized a rapid qPCR test to detect the INFB gene of HPS in clinical and environmental samples on pig farms.
View Article and Find Full Text PDFIn the development of drug delivery vehicles for full-thickness skin wounds, achieving a specific drug concentration at the active site remains a key challenge. In this work, we reported a novel protein-polysaccharide bio-based composite hydrogel (SG@CRG) with controlled continuous drug delivery for enhanced wound healing. This composite hydrogel was prepared by incorporating drug embedded spirulina protein isolate nanogels (SG) into carboxymethyl chitosan based hydrogel (CRG) network, which exhibited rapid gelation and excellent mechanical properties.
View Article and Find Full Text PDFColloidal particles generated from plant-derived proteins and polysaccharides have high potential as particulate stabilizers since they are environmentally friendly, biocompatible, and biodegradable. It has also been shown that amphiphilic anisotropic particles are more effective particulate stabilizers at the oil/water interface. In this study, a one-dimensional all-in-one zein nanoparticle/cellulose nanofiber hybrid nanostructure (ZCHN) was successfully prepared by self-assembling hydrophilic cellulose nanofibers (CNFs) and hydrophobic zein nanoparticles (ZNPs).
View Article and Find Full Text PDFPickering emulsions, stabilized by particulate particles, have emerged as a promising vehicle for topical delivery. Herein, Pickering emulsions stabilized by differently charged spirulina protein isolate - chitosan (SC) composite particles were studied for effective topical delivery of α-Bisabolol (ABS). The composite particles were synthesized via electrostatic assembly of spirulina protein isolate (SPI) and chitosan (CS), and their surface charge was assessed using zeta potential measurements.
View Article and Find Full Text PDFTo establish a rapid and sensitive detection method for the porcine reproductive and respiratory syndrome virus (PRRSV), gene-specific primers and a TaqMan probe were designed based on the gene of PRRSV, and a new stable fully pre-mixed reverse transcription real-time fluorescence quantitative PCR (RT-qPCR) reaction mixture was developed. A simple and rapid RT-qPCR detection method for PRRSV was developed by optimizing nucleic acid amplification conditions. The results showed that the method was able to specifically detect PRRSV without cross-reactivity with the other 11 porcine susceptible viruses.
View Article and Find Full Text PDFThe global livestock industry is facing a serious threat from a widespread foot-and-mouth disease virus (FMDV) epidemic. The timely detection of FMDV can significantly mitigate its harmful effects. This study aimed to establish and evaluate a TaqMan fluorescence quantitative PCR assay to assess its sensitivity, specificity, reproducibility, and stability.
View Article and Find Full Text PDFMilk, on account of its abundant protein content, is recognized as a vital source of bioactive substances. In this study, the bioactive ingredients in milk were obtained by a combination of protease hydrolysis and fermentation with . The compositions of protease hydrolysate (PM) and fermentation supernatant (FM) were determined, and their anti-oxidant and anti-bacterial activities were evaluated.
View Article and Find Full Text PDFMicrocapsules have attracted significant attention in academia and industry due to their unique properties for protecting and controlling the release of active substances. However, based on water-insoluble biopolymers, developing a straightforward approach to prepare microcapsules with improved biocompatibility and functional shells remains a great challenge. In this study, zein, a water-insoluble protein, is employed to prepare robust microcapsules facilely using oil-in-aqueous ethanol Pickering emulsions as templates.
View Article and Find Full Text PDFTo establish a rapid real-time RT-PCR method for differentiating wild-type classical swine fever virus (CSFV) strains from vaccine strains (HCLV), we designed a universal primer targeting the gene to detect wild-type CSFV strains and vaccine strains simultaneously, and two TaqMan-MGB probes were designed to differentiate between wild-type and vaccine strains. After optimizing the RT-qPCR conditions, a rapid dual TaqMan-MGB RT-qPCR method for the detection and identification of CSFV and HCLV was developed. The results showed that method could specifically detect CSFV and HCLV with no cross-reactivity with other swine pathogens.
View Article and Find Full Text PDFSimple and rapid molecular detection technologies for authenticating animal species are urgently needed for food safety and authenticity. This study established a new direct-fast quantitative polymerase chain reaction (qPCR) detection technology for beef to achieve rapid and on-site nucleic acid detection in food. This technology can complete nucleic acid extraction in 4 min using a new type of food nucleic acid-releasing agent, followed by direct amplification of the DNA sample by fast qPCR in 25 min.
View Article and Find Full Text PDFPickering double emulsions exhibit higher stability and biocompatibility compared with surfactant-stabilized double emulsions. However, tailored synthesis of particle stabilizers with appropriate wettability is time consuming and complicated and usually limits their large-scale adoption. Using binary stabilizers may be a simple and scalable strategy for Pickering double emulsion formation.
View Article and Find Full Text PDFMultidrug-resistant bacteria resulting from the abuse and overuse of antibiotics have become a huge crisis in global public health security. Therefore, it is urgently needed to develop new antibacterial drugs with unique mechanisms of action. As a versatile moiety, morpholine has been widely employed to enhance the potency of numerous bioactive molecules.
View Article and Find Full Text PDFHerein, the starch nanocrystal/tannic acid (ST) complex particles, which were prepared based on the hydrogen bond between starch nanocrystal (SNC) and tannic acid (TA), were successfully used to stabilize the HIPPE gels. The optimal TA concentration of the ST complex particles resulted in better water dispersibility, surface wettability, and interfacial activity as compared to SNC. The hydrogen bond responsible for the formation of ST complex particles and subsequent stable emulsions was demonstrated by varying the pH and ionic strength of the aqueous phase.
View Article and Find Full Text PDFThe rapid emergence and spread of multidrug-resistant bacteria pose a serious challenge to human life and health, necessitating the development of novel antibacterial agents. Herein, to address this challenge, three iridium-based antibacterial agents were prepared and their antimicrobial activity were explored. Importantly, the three complexes all showed robust potency against with MIC values in the range of 1.
View Article and Find Full Text PDFA dual biofunctional hydrogel (HQCS-SP) wound dressing, offering antibacterial properties and a biological response, was innovatively designed and developed to repair full-layer skin defects. The HQCS-SP hydrogel creates an artificial matrix that facilitates cell recruitment, extracellular matrix deposition, exhibiting exceptional tissue affinity, robust self-healing, effective hemostatic capabilities and accelerates wound healing. It is synthesized by crosslinking modified chitosan (HQCS) with spirulina protein (SP) and Fe.
View Article and Find Full Text PDFWhat is static charge? Despite the long history of research, the identity of static charge and mechanism by which static is generated by contact electrification are still unknown. Investigations are challenging due to the complexity of surfaces. This study involves the molecular-scale analysis of contact electrification using highly well-defined surfaces functionalized with a self-assembled monolayer of alkylsilanes.
View Article and Find Full Text PDFIntroduction: MicroRNA (miR)-485-5p has been linked to regulation of neurological disorders. The current study examined miR-485-5p levels in patients with epilepsy secondary to cerebral infarction and investigated its predictive significance.
Material And Methods: The Gene Expression Omnibus (GEO) database was employed to screen differentially expressed miRNAs in cerebral infarction and epilepsy.
Objective: To investigate the expression of lncRNA UCA1 in serum of patients with acute cerebral infarction (ACI) and its relationship with prognosis.
Methods: The serum lncRNA UCA1 level in participants was detected, and the correlation between the neurological function score (NIHSS score) of ACI patients and lncRNA UCA1 expression was analyzed. Patients were followed up at 3 months after discharge and were divided into favorable and unfavorable prognostic groups according to the modified Rankin scale (mRs).
Background: Tumor morphology links to early recurrence of hepatocellular carcinoma. Controversy exists regarding the recurrence risk of Liver Imaging Reporting and Data System morphologic Type II hepatocellular carcinoma. This study aims to explore risk factors for early recurrence of Type II hepatocellular carcinoma.
View Article and Find Full Text PDFObjectives: The proportion of older people with dementia in China is gradually increasing with the increase in the aging population over recent years. Hypertension and diabetes are common non-communicable diseases among rural populations in China. However, it remains unclear whether these conditions affect the occurrence and development of cognitive impairment as there is limited research on cognitive status and its risk factors among residents of rural areas.
View Article and Find Full Text PDFObjective: Dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD) are collectively known as Lewy body dementia (LBD). Considering the heterogeneous nature of LBD and the different constellations of symptoms with which patients can present, the exact molecular mechanism underlying the differences between these two isoforms is still unknown. Therefore, this study aimed to explore the biomarkers and potential mechanisms that distinguish between PDD and DLB.
View Article and Find Full Text PDFJ Cell Mol Med
December 2022
Glioma is a highly invasive primary brain tumour, making it challenging to accurately predict prognosis for glioma patients. Cuproptosis is a recently discovered cell death attracting significant attention in the tumour field. Whether cuproptosis-related genes have prognostic predictive value has not been clarified.
View Article and Find Full Text PDFBackground: Subcutaneous panniculitis-like T-cell lymphoma(SPTCL) is a very rare cytotoxic T-cell skin lymphoma involving subcutaneous tissue, and mainly affects young females. T-cell phenotype is characterized by CD3+, CD8+, and CD4-. SPTCT with polycranial neuropathy has rarely been described.
View Article and Find Full Text PDFBackground: Precise evaluation of the efficacy of immunotherapy is critical in the effective management and treatment of advanced hepatocellular carcinoma (HCC). Therefore, the purpose of this study was to compare the response assessments achieved by different criteria and to evaluate the correlation between survival outcome and response assessment in HCC treated with programmed cell death protein 1 (PD-1) inhibitor.
Methods: Fifty patients with advanced HCC treated with first-line PD-1 inhibitor with baseline and follow-up CT images were analyzed.
Objective: To develop an 18F-fluorodeoxyglucose PET/computed tomography (CT) scoring model based on metabolic and radiologic findings of the pleura and fluid to identify malignant pleural effusion.
Methods: The PET and CT findings from patients with pleural effusion in the derivation dataset were used to develop a scoring model. Then, the diagnostic accuracy of the predictive score was verified by the validation dataset.