Previous findings concerning gastric atrophy as a potential risk factor for esophageal squamous cell carcinoma (ESCC) have been inconsistent. We aimed to test whether gastric atrophy and, further, its interaction with poor oral health elevated the risk of ESCC in a high-risk region of China. Our population-based case-control study in Taixing, China (2010-2014), recruited cases from local hospitals and the local cancer registry.
View Article and Find Full Text PDFBACKGROUND The study aimed to investigate the expression of brain natriuretic peptide (BNP) and natriuretic peptide receptor A (NPR-A) in L6-S1 dorsal root ganglia (DRG) in a rat model of chronic nonbacterial prostatitis (CNP). MATERIAL AND METHODS One hundred specific pathogen-free (SPF) male Sprague-Dawley rats were randomly divided into a control group (N=50) and a study group (N=50). The control group underwent prostatic injection of 0.
View Article and Find Full Text PDFEmerg Infect Dis
December 2019
During 2013-2017, a total of 211 cases of listeriosis were reported by 64 sentinel hospitals in China to a national foodborne disease surveillance network. The average case-fatality rate was 31.2% for perinatal cases and 16.
View Article and Find Full Text PDFCancer Epidemiol Biomarkers Prev
December 2019
Background: To explore the relationship between family history of esophageal cancer, SNPs, and the risk of esophageal squamous cell carcinoma (ESCC), we performed a population-based case-control study and developed a genetic family history-related risk (GFR) score and non-family history-related risk (GnFR) score to quantify the cumulative number of risk genotypes carried by each individual.
Methods: We used data of 700 patients with nonfamilial ESCC, 341 patients with familial ESCC, 1,445 controls without a family history of esophageal cancer, and 319 controls with a family history. We genotyped 87 genetic variants associated with the risk for ESCC, and constructed GFR and GnFR scores for cases and controls.
Polybrominated diphenyl ethers (PBDEs) have been known to exhibit neurotoxicity in rats; however, the underlying mechanism remains unknown and there is no available intervention. In this study, we aimed to investigate the role of oxidative and nitrosative stress in the neurotoxicity in the cerebral cortex and primary neurons in rats following the BDE-153 treatment. Compared to the untreated group, BDE-153 treatment significantly induced the neurotoxic effects in rats, as manifested by the increased lactate dehydrogenase (LDH) activities and cell apoptosis rates, and the decreased neurotrophic factor contents and cholinergic enzyme activities in rats' cerebral cortices and primary neurons.
View Article and Find Full Text PDFHerein, we report a novel type of smart graphene oxide nanocomposites (MGO@PNB) with excellent magnetism and high thermosensitive ion-recognition selectivity of lead ions (Pb). The MGO@PNB are fabricated by immobilizing superparamagnetic FeO nanoparticles (NPs) and poly(-isopropylacrylamide--benzo-18-crown-6 acrylamide) thermosensitive microgels (PNB) onto graphene oxide (GO) nanosheets using a simple one-step solvothermal method and mussel-inspired polydopamine chemistry. The PNB are composed of cross-linked poly(-isopropylacrylamide) (PNIPAM) chains with numerous appended 18-crown-6 units.
View Article and Find Full Text PDFThe conserved structural motif D is an important determinant of the speed and fidelity of viral RNA-dependent RNA polymerases (RdRps). Structural and computational studies have suggested that conformational changes in the motif-D loop that help to reposition the catalytic lysine represent critical steps in nucleotide selection and incorporation. Conformations of the motif-D loop in the poliovirus RdRp are likely controlled in part by noncovalent interactions involving the motif-D residue Glu364.
View Article and Find Full Text PDFThe relationship between risk of esophageal squamous cell carcinoma (ESCC) and adult height, changes in individual body mass index (BMI) and body shape is not established. We performed a large population-based case-control study, which enrolled a total of 1414 ESCC cases and 1989 controls in a high-incidence area in China. Using face-to-face interview with a structured questionnaire, information on participants' heights, weights, and perceived body shapes at 20 years of age was collected.
View Article and Find Full Text PDFObjective: To compare the prognosis of papillary and clear cell renal cell carcinoma (RCC) in order to determine the optimal follow-up and therapy for patients with RCC.
Methods: A systematic search of Web of Science, EMBASE, Cochrane Library, and PubMed databases was conducted for articles published through July 30, 2018, reporting on a comparison of the prognosis of papillary RCC and clear cell RCC using the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines.
Results: Of 1896 studies, 11 were considered for the evidence synthesis.
The aim of the present study was to compare the effects of adipose‑derived mesenchymal stem cell (ADSC) and bone marrow mesenchymal stem cell (BMSC) transplantation into the corpora cavernosa of diabetic rats with erectile function. ADSCs and BMSCs were isolated and identified by flow cytometry. Rats with streptozocin‑induced diabetes were screened using apomorphine to obtain a rat model of diabetic erectile dysfunction, followed by transplantation of ADSCs and BMSCs into the corpora cavernosa.
View Article and Find Full Text PDFBackground: To investigate the role of Minichromosome maintenance protein 5 (MCM5) in the clinical prognosis and biological function of renal cell carcinoma (RCC).
Methods: The Oncomine database was analysed to determine the differential expression of MCMs in RCC. A total of 50 RCC tissues were evaluated by immunohistochemistry (IHC), and the association between MCM5 and clinicopathologic features was determined.
J Antimicrob Chemother
September 2019
Polybrominated diphenyl ether-153 (BDE-153) has been demonstrated to induce neuronal apoptosis in rat cerebral cortex and primary neurons, however, the roles of mitochondria and endoplasmic reticulum (ER) remain unclear in the BDE-153-induced neuronal apoptosis. To this purpose, we observed the mitochondria and ER ultrastructure changes in the neuronal apoptosis in rats following BDE-153 treatment, detected the mitochondrial membrane potential (MMP), Ca-Mg-ATP enzyme activity, and the changes of mitochondria and ER apoptosis related molecules in rat cerebral cortex and in primary neurons following BDE-153 treatment. Results showed that compared to the control group, neuronal apoptosis was significantly increased in a dose-dependent manner in rat cerebral cortex and in primary neurons following BDE-153 treatment.
View Article and Find Full Text PDFLaccase is a multi-copper oxidase which oxidizes substrate at the type 1 copper site, simultaneously coupling the reduction of dioxygen to water at the trinuclear copper center. In this study, we used site-directed mutagenesis to study the effect of axial bonds between the metal and amino acid residue side chains in lacTT. Our kinetic and spectral data showed that the replacement of the axial residue with non-coordinating residues resulted in higher efficiency (k /K ) and a lower Cu population at the type 1 copper site, while substitution with strongly coordinating residues resulted in lower efficiency and a higher Cu population, as compared with the wild-type.
View Article and Find Full Text PDFMatrix metalloproteinase-9 (MMP-9, Gelatinase B), an extracellular-acting Zn-dependent endopeptidase, are involved in brain pathologies including ischemia, glioma, and epilepsy. Recent studies suggested that MMP-9 plays an important role in neuronal plasticity, specifically in learning and memory. To determine whether and how MMP-9 plays role in alcohol-related behaviors, male Sprague-Dawley (SD) rats were subjected to chronic intermittent ethanol (CIE) exposure for 4 weeks, following which we collected tissue samples from the hippocampus, medial prefrontal cortex (mPFC), and amygdala at different stages (acute and chronic exposure) during alcohol exposure.
View Article and Find Full Text PDFAnomalous transport in porous media is commonly believed to be induced by the highly complex pore space geometry. However, this phenomenon is also observed in porous media with rather simple pore structure. In order to answer how ubiquitous can anomalous transport be in porous media, we in this work systematically investigate the solute transport process in a simple porous medium model with minimal structural randomness.
View Article and Find Full Text PDFLong non-coding RNAs (lncRNAs) have been demonstrated to serve vital roles in renal cell carcinoma (RCC) development. Gastric carcinoma high expressed transcript 1 (GHET1) regulates numerous biological processes in cancer cells. However, the biological role of GHET1 in RCC has not yet been identified.
View Article and Find Full Text PDFIn this study, complicated model sulfur compounds in crude oil were biodesulfurized in a batch process by microbial consortium enriched from oil contaminated soil. Dibenzothiophene (DBT) was selected as model sulfur compounds. Ultrasonic radiation was used to pre-oxidize the model sulfur compounds before the biodesulfurization (BDS) process.
View Article and Find Full Text PDFCysteine functions not only as an amino acid in proteins but also as a precursor for a large number of essential biomolecules. Cysteine is synthesized via the incorporation of sulfide to O-acetylserine under the catalysis of O-acetylserine(thiol)lyase (OASTL). In dicotyledonous Arabidopsis, nine OASTL genes have been reported.
View Article and Find Full Text PDFObjectives: To characterize the genome of an Escherichia coli harbouring both mcr-1 and mcr-3.19 on a hybrid plasmid and the underlying transmission mechanisms.
Methods: Broth microdilution was used to perform antimicrobial susceptibility testing.
Introduction: Studies have reported alcohol consumption and genetic variants as major contributing factors for esophageal squamous cell carcinoma (ESCC). However, the complicated interactions between alcohol and genetic factors involved in alcohol metabolism have not been well elucidated with respect to augmented risk of ESCC.
Methods: We performed a large population-based case-control study in a Chinese city with a high ESCC incidence by enrolling 1190 case patients and 1883 controls.
Rhizobacteria play an important role in bridging the soil and plant microbiomes and improving the health and growth of plants. In this study, the bacterial community structures and compositions of rhizosphere microbiomes associated with six plant species, representing two orders and three families of wild plants grown in the same field, were evaluated. The six plant species examined harbored a core and similar bacterial communities of the rhizosphere microbiome, which was dominated by members of Rhizobiales, Sphingomonadales, Burkholderiales, and Xanthomonadales of Proteobacteria, Subgroup 4 of Acidobacteria, and Sphingobacteriales of Bacteroidetes.
View Article and Find Full Text PDFThe anti-senescence activity of genistein is associated with inducing autophagy; however, the underlying mechanisms are not fully understood. In this study, human umbilical vein endothelial cells (HUVECs) were pretreated with genistein (1000 nM) for 30 min and then exposed to ox-LDL (50 mg/L) for another 12 h. The study found that genistein inhibited the ox-LDL-induced senescence (reducing the levels of P16 and P21 protein, and the activity of SA-β-gal); meanwhile, the effect of genistein was bound up with enhancing autophagic flux (increasing LC3-II, and decreasing the level of P62, p-mTOR and p-P70S6K).
View Article and Find Full Text PDFObjective: To assess the expression profile and functional mechanism of long noncoding RNA (lncRNA) insulin growth factor 2 antisense (IGF2AS) in human prostate cancer (PCa).
Methods: Quantitative reverse transcriptase-polymerase chain reaction was applied to assess IGF2AS expression in immortal PCa cell lines and in situ human PCa tumors. IGF2AS was overexpressed in VCaP and PC3 cells to assess its effect on PCa cell proliferation and invasion in vitro, and xenograft in vivo.