[Effect of auricular-point pressure combined with personalized music therapy on perioperative stress response in primipara].

Objective: To explore the effect of auricula-point pressure combined with personalized music therapy on perioperative stress response in primipara.

Methods: A total of 1000 primiparas who were elective for cesarean section were randomly divided into an observation group and a control group, 500 cases in each one. 1 h before surgery and 3 h, 6 h, 12 h and 24 h after surgery, individualized music relaxation intervention was given for 1 h in the two groups.

Magnetic beads-based neuraminidase enzyme microreactor as a drug discovery tool for screening inhibitors from compound libraries and fishing ligands from natural products.

Neuraminidase (NA) is a glycoside hydrolase that has been proposed as a potential therapeutic target for influenza. Thus, the identification of compounds that modulate NA activity could be of great therapeutic importance. The aim of this study is to develop a drug discovery tool for the identification of novel modulators of NA from both compound libraries and natural plant extracts.

[Influence Factors and Sensitivity of Ozone Formation in Langfang in the Summer].

The diurnal variations in ozone concentrations in the summer were studied using the temperature, wind speed and direction, total cloud cover, and solar radiation intensity data collected in Langfang, China. The ratio of volatile organic compounds to nitrogen oxides (VOCs/NO) and the EKMA curve were studied to analyze the sensitivity of ozone formation. The results showed that:① The ozone generation rate and ozone concentrations were positively correlated with the solar radiation intensity with Pearson correlation coefficients of 0.

Neuroprotective action and mechanistic evaluation of protodioscin against rat model of Parkinson's disease.

Background: Parkinson's disease (PD) is the most widespread motor-affecting disease affecting majorly middle- and late age population. Thus, in the current study, we intended to explore the neuroprotective effect of protodioscin (Proto) against 6-hydroxydopamine (6-OHDA)-induced PD rat model.

Methods: After induction of PD with the injection of 6-OHDA, the different dose of Proto was administered for the duration of experimental protocol (2 months).

Tangeretin ameliorates renal failure via regulating oxidative stress, NF-κB-TNF-α/iNOS signalling and improves memory and cognitive deficits in 5/6 nephrectomized rats.

Chronic kidney disease (CKD) is a significant global health concern with limited treatment options. Oxidative stress and inflammatory responses have been implicated in the pathology of CKD. Patients with CKD are frequently affected with neurological complications that affect both the central and peripheral nervous system.

Correlation between mammograghic findings and clinical/ pathologic features in women with small invasive breast carcinomas.

Background: To study the relationship between mammographic findings and clinical/pathologic features in women with 1-15mm sized invasive breast cancer.

Materials And Methods: We investigated a consecutive series of 134 cases diagnosed in Tianjin Medical University Cancer Institute and Hospital in 2007. Mammographic findings were classified into five groups as follows :1) stellate mass without calcification; 2) non-stellate mass without calcification; 3) intermediate suspicious calcification with or without associated mass; 4) higher probability malignant calcification with or without associated mass; 5) focal asymmetry/distortion without associated calcification.

Differences between breast cancer patients younger and older than 40 years: mammographic findings.

Objective: To compare the mammogarphic appearance between breast cancer patients aged <40 and ≥40 years.

Methods: Needle localization and biopsy of suspicious mammographic lesions identified 1,959 breast carcinomas in a single institution from Jun 2012 to Apr 2013. According to the age, we divided patients into two groups: <40 and ≥40 years old, and analyzed mammographic appearance separately.

Therapeutic window of taurine against experimental stroke in rats.

The dose-dependent protection of taurine against experimental stroke has been demonstrated previously. The objective of this study was to investigate the therapeutic window of taurine against experimental stroke, and the effects of delayed administration of taurine on inflammatory reaction in a rat model of stroke. Rats received 2-h ischemia by intraluminal filament, and then reperfused.

[The effect of Duraphat varnish on fluoride content of enamel in deciduous teeth].

Purpose: The aim of this study was to analyse the fluoride distribution in deciduous teeth enamel after using Duraphat varnish,and to supply the evidence for preventing deciduous caries by using Duraphat varnish.

Methods: After coating Duraphat varnish, the alteration of fluoride distribution in the enamel was observed with electron probe micro-analysis. The result was compared with the control group and NaF solution group.

[Concentration retrieving method of SO2 using differential optical absorption spectroscopy based on statistics].

A concentration retrieving method using statistics is presented, which is applied in differential optical absorption spectroscopy (DOAS) for measuring the concentration of SO2. The method uses the standard deviation of the differential absorption to represents the gas concentration. Principle component analysis (PCA) method is used to process the differential absorption spectrum.

[Denoising and assessing method of additive noise in the ultraviolet spectrum of SO2 in flue gas].

The problem of denoising and assessing method of the spectrum of SO2 in flue gas was studied based on DOAS. The denoising procedure of the additive noise in the spectrum was divided into two parts: reducing the additive noise and enhancing the useful signal. When obtaining the absorption feature of measured gas, a multi-resolution preprocessing method of original spectrum was adopted for denoising by DWT (discrete wavelet transform).

[In vitro study of the secondary mesiobuccal canal of the maxillary second molar].

Objective: To get some anatomical knowledge about the second mesiobuccal canal (MB2) of the maxillary second molar of Shandong region by studying the teeth in vitro. The anatomical knowledge may help us to improve the successful rate of root canal therapy of the maxillary molar.

Methods: 118 maxillary second molars were collected from the different region in Shandong province.

[Screening of effective fraction on experimental gastric ulcer from Pongamia pinnata roots].

Objective: To study the effect of extract from Pongamia pinnata roots on experimental gastric ulcer and screen the effective fraction.

Method: The models of gastric mucosa damage were induced by absolute alcohol in rats and reserpine in mice to observed the effect of ethyl alcohol extract from P. pinnata roots (PRE) and different parts on experimental gastric ulcer.

[Measurement and analysis of optical density in dentine of 32 primary teeth].

Purpose: To study the optical density (OD) of primary dental dentine and provide data for further research.

Methods: The Digora system of dental digital radiography was used to acquire digital radiographic images of cross sections from 32 deciduous maxillary central incisors, and to measure the OD values of different depth (outer, middle and inner layers) and four sides (mesial, distal, labial and palatal sides) in dentine. The difference was analyzed with one-way ANOVA and SNK using SAS 6.

[Expression and assay in vitro of phage single chain antibody against nucleoprotein of influenza virus A type].

Objective: To expression the phage single chain antibody against nucleoprotein of influenza virus A type in E. coli strain HB2151 by screening the positive clone from the phage antibody library against nucleoprotein, which will prepare for the construction of fast leak kit of Influenza virus A type.

Methods: The positive clone ratio in the phage antibody library was enriched by three-round continual solid panning, ELISA, SDS-PAGE and Western-blot methods were used to analyze the protein secreted into the supemants and periplasmic.