Development of efficient and accurate detection methods for antibiotics is crucial for ensuring food safety and safeguarding human health. In this study, a dual-mode sensing platform was constructed by integrating photoelectrochemical (PEC) and surface-enhanced Raman scattering (SERS) techniques for the sensitive detection of kanamycin using an aptamer signal conversion strategy which was based on the CN/MXene-gold nanoparticles heterojunction. The sensitive dual-mode sensing platform enabled detection of kanamycin, with linear response ranges of 10 to 10 nM for PEC with a detection limit (LOD) of 0.
View Article and Find Full Text PDFMucin1 (MUC1) is an extensively glycosylated transmembrane protein that is widely distributed and overexpressed on the surface of cancer cells, playing an important role in tumor occurrence and metastasis. Therefore, highly sensitive detection of MUC1 is of great significance for early diagnosis, treatment monitoring, and prognosis of cancer. Here, an ultra-sensitive photoelectrochemical (PEC) sensing platform was developed based on an aptamer amplification strategy for highly selective and sensitive detection of MUC1 overexpressed in serum and on cancer cell surfaces.
View Article and Find Full Text PDFThe basic mechanism of heterosis has not been systematically and completely characterized. In previous studies, we obtained three economically important fishes that exhibit rapid growth, WR (WCC ♀ × RCC ♂), WR-II (WR ♀ × WCC ♂), and WR-III (WR-II ♀ × 4nAU ♂), through distant hybridization. However, the mechanism underlying this rapid growth remains unclear.
View Article and Find Full Text PDFInvestigating the mechanisms by which W135 meningococcal conjugate (PSW135-TT) activates adaptive immune responses in mice can provide a comprehensive understanding of the immune mechanisms of bacterial polysaccharide conjugate vaccines. We compared B-cell and T-cell immune responses immunized with W135 meningococcal capsular polysaccharides (PSW135), tetanus toxoid (TT) and PSW135-TT in mice. The results showed that PSW135-TT could induce higher PSW135-specific and TT-specific IgG antibodies with a significant enhancement after two doses.
View Article and Find Full Text PDFIn this paper, a photoelectrochemical (PEC)-surface-enhanced Raman scattering (SERS) dual-mode biosensor is constructed coupled with a dual-recognition binding-induced DNA walker with a carbon nitride nanosheet (CN)/MXene-gold nanoparticles (C/M-Au NPs) accelerator, which is reliable and capable for sensitive and accurate detection of (). Initially, a photoactive heterostructure is formed by combining CN and MXene via a simple electrostatic self-assembly as they possess well-matched band-edge energy levels. Subsequently, in situ growth of gold nanoparticles on the formed surface results in better PEC performance and SERS activity, because of the synergistic effects of surface plasmon resonance and Schottky barrier.
View Article and Find Full Text PDFBackground: The correlation between potential risk factors such as obesity (leg fat percentage (left), arm fat percentage (left), waist circumference, body fat percentage, trunk fat percentage), smoking behaviors (past tobacco smoking, smoking initiation, smoking/smokers in household, current tobacco smoking) and reproductive traits (age first had sexual intercourse (AFS), age at menarche (AAM), and age at first birth (AFB)) have been linked to the occurrence of spontaneous abortion (SA). However, the causal associations between these factors and SA remain unclear.
Methods: We conducted univariable and multivariable Mendelian randomization (MR) analyses to evaluate the associations of obesity, smoking behavior and reproductive traits with SA.
Pertussis is a severe human respiratory tract infectious disease caused by that primarily affects infants and young children. However, the acellular pertussis vaccine currently administered can induce antibody and Th2 immune responses but fails to prevent the nasal colonization and transmission of , causing a resurgence of pertussis, so improved pertussis vaccines are urgently needed. In this study, we created a two-component pertussis vaccine candidate containing a conjugate prepared from oligosaccharides and pertussis toxin.
View Article and Find Full Text PDFZhongguo Fei Ai Za Zhi
January 2023
Background: There have been many significant advances in the diagnosis and treatment of non-small cell lung cancer (NSCLC). However, the mechanism underlying the progression of NSCLC is still not clear. Plant homodomain finger-like domain-containing protein 5A (PHF5A) plays an important role in processes of chromatin remodeling, morphological development of tissues and organs and maintenance of stem cell pluripotency.
View Article and Find Full Text PDFFood-borne pathogens are one of the leading causes of food poisoning, which vigorously affect food safety and human health. Therefore, the development of early and rapid detection methods for food pollution evaluation is the key to food safety and quality control. Herein, a simple and inexpensive photoelectrochemical (PEC) sensor is developed for highly selective and ultrasensitive detection of Staphylococcus aureus (S.
View Article and Find Full Text PDFDistant hybridization can combine whole genomes from parent species and result in changes in the phenotypes and genotypes in hybrids. The characteristics of many hybrid fishes with even number of chromosomes have been reported, but the hybrids with odd number chromosomes are rarely reported. Blunt snout bream (, BSB, 2n = 48) and rare gudgeon (, RG, 2n = 50) belong to two different subfamilies and have quite different biological characteristics.
View Article and Find Full Text PDFBackground: Chromodomain helicase DNA-binding protein 4 (CHD4) has been shown to contribute to DNA repair and cell cycle promotion; however, its roles in cancer initiation and progression remain largely unknown. This study aimed to demonstrate the role of CHD4 in the development of non-small cell lung cancer (NSCLC) and determine the potential mechanisms of action.
Methods: By using immunohistochemistry, the expression levels were evaluated in both cancer and non-cancerous tissues.
Background: Previous studies have provided conflicting evidence about the increased overall survival (OS) in lung cancer patients with diabetes mellitus (DM) compared with those without DM. This study assessed progression-free survival (PFS)/OS in lung cancer patients with or without DM and tentatively analyzed the impact of blood glucose levels on PFS/OS in lung cancer patients.
Methods: Data were collected from lung cancer patients based upon admission records from January 2010 to January 2012 and follow-up records from January 2010 to January 2015 in the Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai.
Lung cancer is the most common and lethal cancer worldwide, especially in developing countries. Non‑small cell lung cancer (NSCLC) accounts for 85% of all cases of lung cancer. In aprevious study, the protein expression of ubiquitin conjugating enzyme E2 C (UBE2C/UbcH10) in NSCLC tissues and cells was found to be significantly higher than that in adjacent tissues and normal lung epithelial cells.
View Article and Find Full Text PDFInflammation and apoptosis play important roles in the initiation and progression of acute lung injury (ALI). Our previous study has shown that progranulin (PGRN) exerts lung protective effects during LPS-induced ALI. Here, we have investigated the potential roles of PGRN-targeting microRNAs (miRNAs) in regulating inflammation and apoptosis in ALI and have highlighted the important role of PGRN.
View Article and Find Full Text PDFUnlabelled: Osteopontin (OPN) is known to be overexpressed in numerous carcinomas. Although abundant OPN has been reported to be correlated with poor survival in non-small cell lung cancer (NSCLC) but their clinical and prognostic significance in SCLC remains unknown. In this study, RNA-sequencing was used to obtain gene expression data in SCLC tissue samples and OPN expression levels were then investigated using qPCR, immunohistochemical and Western blot.
View Article and Find Full Text PDFIEEE Trans Image Process
July 2017
Moiré artifacts are generally caused by the interference between the overlap of the sensor's sampling grid and high-frequency (nearly) periodic textures, and heavily affect the image quality. However, it is difficult to effectively remove moiré artifacts from textured images as the structure of moiré patterns is similar to that of textures in some sense. In this paper, we propose a novel textured image demoiréing method by signal decomposition and guided filtering.
View Article and Find Full Text PDFBackground: This study applied a combined cancer biomarker panel to clinically identify small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC) in a high-risk population.
Methods: The serum levels of 4 biomarkers (progastrin-releasing peptide [ProGRP], carcinoembryonic antigen [CEA], squamous cell carcinoma antigen [SCC], and cytokeratin 19 fragment [CYFRA21-1]) were determined in 153 patients with a high risk of lung cancer (12 with a new diagnosis of SCLC, 52 with NSCLC, and 89 without lung cancer). Information about diagnosis delays was collected through interviews of all participants.
Respir Physiol Neurobiol
March 2014
Blocking PcrV, an essential component of the Type III secretion system (TTSS), has demonstrated efficacy against Pseudomonas aeruginosa infections. However, most of the results came from laboratory strains. Whether it is applicable to clinically isolated multi-drug resistant (MDR) strains is unknown.
View Article and Find Full Text PDFObjective: To evaluate the application value of (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) in early diagnosis of lung cancer.
Methods: Retrospective analyses were conducted for 347 cases of pulmonary space-occupying lesions at Zhongshan Hospital from June 2010 to October 2012. The diagnostic validity of PET/CT and fluorodeoxyglucose maximum standardized uptake value (SUVmax) of lesions were compared respectively.
Background: FoxM1 has been reported to be important in initiation and progression of various tumors. However, whether FoxM1 has any indication for prognosis in non-small cell lung cancer patients remains unclear.
Methodology/principal Findings: In this study, FoxM1 expression in tumor cells was examined first by immunohistochemistry in 175 NSCLC specimens, the result of which showed that FoxM1 overexpression was significantly associated with positive smoking status (P = 0.
Zhejiang Da Xue Xue Bao Yi Xue Ban
May 2011
Zhonghua Jie He He Hu Xi Za Zhi
November 2010
Objective: to highlight the clinical manifestation, histologic characteristics, diagnostic and therapeutic method of tracheal lobular capillary hemangioma (LCH).
Methods: the clinical, auxiliary examinational and pathological data of two patients with tracheal LCH were presented, and relevant literatures were reviewed.
Results: LCH is a polypoid form of capillary hemangioma which usually occurs on skin or muscosal surface of oral and nasal, rarely be seen in trachea.