Distance dilution of antibiotic resistance genes of sediments in an estuary system in relation to coastal cities.

Coastal tourist and industrial cities are most likely to have differential effects on the distance dilution of antibiotic resistance genes (ARGs) in an estuary system. This study used high-throughput fluorescence quantitative polymerase chain reaction to identify sediment ARGs in two typical estuaries of coastal tourist and industrial cities (Xiamen and Taizhou) in China. The distance dilution of ARGs and its relationship with key environmental factors were analysed.

Psychometric properties of the 15-item positive subscale of the community assessment of psychic experiences.

Objective: A new 15-item version of the positive subscale of Community Assessment of Psychic Experiences (CAPE-P15) has been recently proposed and used to measure psychotic-like experiences. The wide application of this scale is thought to be feasible and cost-effective, due to its manageable length and higher level of internal consistency. However, its psychometric properties have not been well established.

Effect of combination of curcumin and GLUT-1 AS-ODN on radiosensitivity of laryngeal carcinoma through regulating autophagy.

Background: This study is to explore the role of curcumin and GLUT-1 antisense oligodeoxynucleotides (AS-ODN) on autophagy modulation-initiated radiosensitivity.

Methods: BALB/c mice were employed to establish xenograft model using Tu212 cell. The expression of autophagy- and apoptosis-related proteins was determined by WB.

Chitosan/ nanofibrillated cellulose aerogel with highly oriented microchannel structure for rapid removal of Pb (II) ions from aqueous solution.

Among the heavy metal ions, Pb (II) can cause serious diseases in the nervous and cardiovascular systems even at an ultralow concentration. Nowadays, various materials with high adsorption capacity have been developed for heavy metal ions adsorption. However, most of them have a low adsorption rate and may take a long time to achieve adsorption equilibrium.

Insight into the rheological behaviors of a polyanionic collagen fabricated with poly(γ-glutamic acid)-NHS ester.

The rheological behaviors of a polyanionic collagen, fabricated using poly(γ-glutamic acid)-N-hydroxysuccinimide (γ-PGA-NHS) as a novel modifier, were investigated in this study. It was found that both of the native and modified collagen solutions were pseudoplastic fluids, as shown from the steady-shear tests. While the storage modulus and loss modulus of collagen increased with increasing the amount of γ-PGA-NHS, or with increasing the degree of esterification of γ-PGA-NHS; meanwhile, the dynamic denaturation temperature determined by dynamic temperature sweep was also increased, indicating an improved thermal stability of collagen solution modified by γ-PGA-NHS.

Follicular dendritic cell sarcoma of the right tonsil: A case report and literature review.

The current study presents a case of extranodal follicular dendritic cell sarcoma (FDCS) of the tonsil and reviews the relevant literature. In the present case, a 59-year-old male presented with a globus sensation in the right pharynx for 6 weeks. On clinical examination, a painless non-ulcerated enlarged right tonsil was identified; the tonsil was covered with a normal mucus membrane.

Validated HILIC-MS/MS assay for determination of vindesine in human plasma: Application to a population pharmacokinetic study.

The first HILIC-tandem mass spectrometry (MS/MS) method for determination of vindesine (VDS) in human plasma using vinorelbine as an internal standard (IS) has been developed and validated. Plasma samples clean-up consisted of solid phase extraction with a strata™-X column. The compounds were separated on a HILIC column with an isocratic mobile phase consisting of acetonitrile and 15mM ammonium acetate buffer containing 0.

Quantitative analysis of trazodone in human plasma by using HPLC-fluorescence detector coupled with strong cation exchange chromatographic column: application to a pharmacokinetic study in Chinese healthy volunteers.

A simple, selective, and sensitive high performance liquid chromatography (HPLC) procedure has been developed for determination of trazodone in human plasma. Prazosin was employed as the internal standard (IS). Sample preparation involved liquid-liquid extraction by methyl tert-butyl ether after alkalinization with ammonia.

Validated UPLC-MS/MS method for determination of moclobemide in human brain cell supernatant and its application to bidirectional transport study.

A simple and sensitive analytical method based on ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) has been developed for determination of moclobemide in human brain cell monolayer as an in vitro model of blood-brain barrier. Brucine was employed as the internal standard. Moclobemide and internal standard were extracted from cell supernatant by ethyl acetate after alkalinizing with sodium hydroxide.

Correlation of computed tomography with pathological features in angiomatous nasal polyps.

Background: Angiomatous nasal polyps (ANPs), also known as angiectatic polyps, have rarely been reported in the literature. ANPs are characterized by extensive vascular proliferation and ectasia. ANPs can grow rapidly and exhibit aggressive clinical behavior that could simulate malignancy preoperatively, and they are easily confused with other diseases.

Effect of Tong Qiao drops on the expression of eotaxin, IL-13 in the nasal mucosa of rats with allergic rhinitis.

Background: In recent years, particularly in China, many Chinese medicines and prescriptions for treating allergic rhinitis have been evaluated for their clinical relevance. Studies have found that numerous herbs and their constituent compounds can significantly alleviate allergic symptoms and are effective treatments for allergic rhinitis. The purpose of this study was to examine the modulatory effect of Tong Qiao nose drops on allergy symptoms and the expression of cytokines in the nasal mucosa of rats with ovalbumin-induced allergic rhinitis.

Simultaneous quantitative determination of paracetamol and its glucuronide conjugate in human plasma and urine by liquid chromatography coupled to electrospray tandem mass spectrometry: application to a clinical pharmacokinetic study.

A specific, sensitive and rapid method based on high performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) was developed for the simultaneous determination of paracetamol (APAP) and its glucuronide conjugate (PG) in human plasma and urine. Plasma samples were precipitated with the mixture of acetonitrile and propylene glycol (90:10, v/v) solution and urine samples were diluted with the mobile phase, which were used to isolate the analytes from biological matrices followed by injection of the extracts onto a C(18) column with isocratic elution. Detection was carried out on a triple quadrupole tandem mass spectrometer in multiple reaction monitoring (MRM) mode using positive electrospray ionization (ESI(+)).

Etiology analysis and computed tomography imaging of a tonsillar inflammatory myofibroblastic tumor: report of an immunocompetent patient and brief review.

Objectives: The etiology of Inflammatory myofibroblastic tumor(IMT) is contentious. In this study, we used computed tomography (CT) to examine tonsillar IMT and further analyzed the etiology of this entity.

Methodology: We presented CT features of left tonsillar IMT and reviewed the English-language literature published between 1984 and 2011.

[Mutation of ING1 gene in laryngeal squamous cell carcinoma and its association with p33ING1b protein expression].

Objective: To investigate the ING1 gene mutation status in human laryngeal squamous cell carcinoma(LSCC), and the association of p33(ING1b) protein expression with p53 protein expression.

Method: DNA of LSCC tissue was extracted, and nucleotide of the second exon was amplified and sequenced to determine the chromosome status. The p23(ING1b) and p53 protein expression were detected by immunohistochemistry and the association between them were analyzed.

[Study on the expression of angiogenesis and spontaneous apoptosis and their relevance in laryngeal squamous cell carcinoma].

Objective: To investigate the relationship among angiogenesis, spontaneous apoptosis and clinicopathological parameters in laryngeal squamous cell carcinoma (LSCC).

Method: The intratumor microvessel density (IMVD), apoptotic index (AI) and vascular endothelial growth factor (VEGF) expression were detected by immunohistochemistry SABC and terminal uridine deoxynucleotidyl transferase mediated nick end labeling(TUNEL) methods in 34 LSCC patients.

Result: The average IMVD was (21.