Pien Tze Huang Inhibits Migration and Invasion of Hepatocellular Carcinoma Cells by Repressing PDGFRB/YAP/CCN2 Axis Activity.

Objective: To investigate the effects of Pien Tze Huang (PZH) on the migration and invasion of HCC cells and underlying molecular mechanism.

Methods: Cell counting kit-8 (CCK-8) was applied to evaluate the cell viabilities of SMMC-7721, SK-Hep-1, C3A and HL-7702 (6 × 10 cells/well) co-incubated with different concentrations of PZH (0, 0.2, 0.

Robotic-assisted versus conventional laparoscopic surgery for colorectal cancer: Short-term outcomes at a single center.

Background: The robotic technique has been established as an alternative approach to laparoscopy for colorectal surgery. The aim of this study was to compare the short-term outcomes of robot-assisted and laparoscopic surgery in colorectal cancer.

Methods: The cases of robot-assisted or laparoscopic colorectal resection were collected retrospectively between July 2015 and September 2018.

Short-Term Outcomes of Robotic Laparoscopic Total Mesorectal Excision for Rectal Cancer: A Cohort Study.

The aim of this study was to evaluate and compare the intestinal function recovery time and other short-term outcomes between robotic-assisted total mesorectal excision (R-TME) and laparoscopic total mesorectal excision (L-TME) for rectal cancer. This is a retrospective study using a prospectively collected database. Patients' records were obtained from Gansu Provincial Hospital between July 2015 and October 2017.

Xylazine Regulates the Release of Glycine and Aspartic Acid in Rat Brain.

Introduction: Xylazine, a type of α-adrenoceptors, is a commonly used drug in veterinary medicine. Xylazine-induced changes in the content of amino acid neurotransmitters - glycine (Gly) and aspartic acid (Asp), in different brain regions and neurons were studied.

Material And Methods: Wistar rats were administered 50 mg/kg or 70 mg/kg of xylazine by intraperitoneal injection.

[Study on Hydrothermal Preparation and Luminescence Properties of Luminescent Material BaSrMg(PO₄)₂:Eu³⁺].

Eu³⁺ doped BaSrMg (PO₄)₂ were prepared by a hydrothermal method. The crystal structure and morphology of BaSrMg(PO₄)₂:Eu³⁺ phosphor were characterized by X-ray powder diffraction (XRD) and field emission scanning electron microscopy (FESEM). The effects of different pH values (5, 6, 7 and 8) and different reaction temperatures (120, 140, 160, 180 and 200 °C) on the crystal structure and morphology of BaSrMg(PO₄)₂:Eu³⁺ phosphor were studied in this paper.

[Detection of Ethoprophos Using SERS Coupled with Magnetic Fe3O4/Ag Composite Materials].

The magnetic Fe3O4/Ag composite materials were synthesized by reducing AgNO3 with sodium citrate in the presence of Fe3O4 which were prepared by co-precipitation firstly. The enrichment and extraction of ethoprophos assembled on Fe3O4/Ag were achieved with the applied magnetic field. The different concentrations of ethoprophos adsorbed on Fe3O4/Ag were analyzed by SERS and it was showed that the trace analysis of ethoprophos had been established, while the enhancement factor of probe molecules on Fe3O4/Ag was 1.

[Chemical characteristics of Nickel(II) 2,3-dimercaptosuccinate complexes modified on gold electrodes].

2,3-Dimercaptosuccinic acid (DMSA) and its complex Nickel(II) 2,3-Dimercaptosuccinate (DMSA-Ni(II)) were assembled on the electrochemically activated Au electrode and the modified films were investigated by ex-situ SERS, SEM and electro-reduction. The coordination ratio (1:2) and stability constant (4.716 X 10(7)) of DMSA and Nickel(II) were firstly confirmed by UV.

[Chemical adsorption of thiosalicylic acid on silver surface investigated by surface-enhanced Raman scattering].

Surface-enhanced Raman scattering (SERS) of thiosalicylic acid (TSA) with sulfydryl group was investigated on the surface of electrochemically roughed silver electrode. The result shows that SERS enhancement effect was relative to the concentration and pH, and 1 x 10(-3) mol x L(-1) and pH 4 were the optimal condition. While the concentration increased, the enhancement effect decreased quickly because of steric hindrance.

[Preparation and luminescence of single-host white-light-emitting BaSrMg(PO4)2 : Eu2+ phosphor for ultraviolet LEDs].

A single-host white-light-emitting phosphor BaSrMg(PO4)2 : EU2+ was prepared by high temperature solid-state reaction method, and the luminescence characteristics and XRD pattern were investigated. The results showthat BaSrMg(PO4)2 phase was obtained by sintering at 1 200 degrees C for 3 hours. BaSrMg(PO4)2 = Eu2+ phosphor exhibits two main emission bands peaking at 424 and 585 nm, respectively.

[Indirect determination of stability constant of zinc cystine chelate by flame atomic absorption spectrometry with ZnS].

Cystine was indirectly determined by flame atomic absorption spectrometry with ZnS. Base on the determination mechanism, the composition of complex, the complex balance reaction of soluble zinc ion, which formed in the determination of cystine by FAAS, and the stability constant of complex balance were discussed in the present paper. Under the alkalescent conditions, cystine (Cys-Cys) can react with zinc sulfide suspension solution to form a soluble complex or chelate of zinc cystine.

[Study on the surface-enhanced Raman spectrum of phenylalanine on silver sols].

The surface enhanced Raman scattering (SERS) of L-phenylalanine solution system was studied in the present paper. The enhancement effect is obvious. Compared to the conventional Raman spectra of solid phenylalanine, the frequency deviations of some peaks in the SERS spectra were observed, and the relative strengths of some peaks were certainly changed.

[Indirect study of zinc-cystine complex reaction by FAAS].

Each state of cystine and zinc ion in aqueous solution under different pH conditions was calculated by computer, and the scatter diagram was given. Under the influence of solution pH, the mechanism of complex reaction in indirectly determining cystine by flame atomic absorption spectrometry with ZnS was studied. The soluble complex ion is composed of 0 valence cystine Cys-Cys+/-, -1 valence cystine Cys-Cys+/- and -2 valence cystine Cys-Cys(2-) with Zn(OH)2.

[Quantitative determination of glucose by internal standard laser Raman spectra].

In the present paper we report quantitative analysis of glucose using internal standard laser Raman spectra. A good linear correlation was observed between the intensities of the -COO band at 1 125 cm(-1) using excition wavelength of 632.81 nm (r = 0.

[Determination of harmful elements in various fish tissues by ICP-AES].

Twelve kinds of fish tissues were wetly decomposed and the harmful elements of Cd, As, Pb and Hg were determined by ICP-AES method in the present paper. The techniques for operating ICP instrument were optimized, spectral interference for elements in special wavelength range was studied, and the correction factor of IECs model was established. The results indicated that the signal to noise ratio and detection limit for elements with higher ionization potential energy may be improved by increasing the radio generator power properly and reducing the nebulizer pressure.

[Indirect studies of zinc-histidine complex reaction by FAAS].

Each state of histidine and zinc ion in aqueous solution with different pH was calculated by computer, producing the scatter diagram. Under the influence of solution pH, the mechanism of complex reaction in indirectly determining histidine by flame atomic absorption spectrometry with ZnS was studied. In different state of histidine and zinc ion in aqueous solution at differential pH, the response peak with pH in giving conditions was obtained.

[Studies of influences of environmental light on near-infrared laser raman spectra of sodium glutamic acid solution].

The near-infrared laser Raman spectra influenced by environmental light were studied in the determination of sodium glutamic acid solution. The environmental lights included natural light from outdoors and light from room fluorescent lamp. The results show that different influences on near infrared laser Raman spectra of sodium glutamic acid solution can be produced in different environmental light.

[Studies of laser Raman spectra of ZnCl2 solution effected by environmental light].

The laser Raman spectra influenced by environmental light were studied in the determination of ZnCl2 solution. The environmental light included the natural light from outdoors and the light from indoor fluorescent. The results show that different influences on the laser Raman spectra of ZnCl2 solution can be produced in different environmental light.

[Studies of interference source in laser Raman spectra of near infrared].

Many abnormal peaks in laser Raman spectra were found in determinations with laser illuminant of 785. 18 nm. After studies, it was found that the notch filter caused the interferences and the characteristics of the band pass filter were not good.

[Studies of laser Raman spectra of sodium glutamic acid solution effected with environmental light].

The laser Raman spectra influenced by environmental light have been studied in the determination of sodium glutamic acid solution. The environmental light included natural light from outdoors and the light from indoor fluorescents. The results show that different influences on laser Raman spectra of sodium glutamic acid solution can be produced in different environmental light.

[Influence of different light source on the laser Raman spectra in determination of sodium glutamic acid].

The influences of different laser source and different light power on laser Raman spectra were studied for the sodium glutamic acid. The results show that some influences existed using different wavelength and power of light source the peak shifting 6 cm(-1). As UV laser has great light power, the samples were destroyed, making the Raman spectra- reduce or disappear.

[Studies of complexing action mechanism in the indirect determination of arginine by FAAS with ZnS].

Each state of arginine and zinc ion in aqueous solution under different pH conditions was calculated by computer, giving out the scattergram. After the investigation, the mechanism of complexing action in indirectly determining arginine by flame atomic absorption spectrometry with ZnS was studied in terms of the influence of solution pH. It is with different state of arginine and zinc ion in aqueous solution in differential pH that the response peak with pH in given conditions is obtained.

[Determination of stability constant of zinc cysteinate by indirect determination using FAAS with ZnS].

On the bases of exploring measurement mechanism and complex compound components of indirect determination of cysteine acid by flame atomic absorption spectrometry with zinc sulfide, the stability constants of the complex compound of zinc cysteinate were studied successfully, after the numeric measurements and theoretical investigations under the best optimized acidity for the determination. In conclusion, at the best optimized acidity pH 9.7, the stability constant of alkalescence zinc cysteinate is between 2.

[Studies of complexing action mechanism in indirect determination of cysteine by FAAS with ZnS].

Each state of cysteine and zinc ion in aqueous solution at different pH conditions was calculated by computer, giving out the distribution curve. The mechanism of complexing action in indirectly determining cysteine by flame atomic absorption spectrometry with ZnS, and the influence of solution pH were studied. The state of cysteine and zinc ion in aqueous solution at different pH is different.

[Determination of stability constant of glutamate zinc by indirect determination of FAAS with ZnS].

Based on indirect determination of glutamic acid by flame atomic absorption spectrometry with ZnS and the complexing action mechanism, the determination of stability constant of glutamate zinc was studied. Under the selected condition of pH 9.0, the stability constant of glutamate zinc is between 3.

[Studies of influential factors in determination of Ca2+ by combination of FAAS with micro-column enrichment].

It have been studied that the influential factors in determination of calcium by combination of FAAS with micro-cell preconcentration. In order to the preconcentration, the ions can be adsorbed by the self-made electrochemical preconcentration micro-cell. Then the adsorbed ions instantly return into solution which is small in size and directly into FAAS.