Objective To investigate the effect of estrogen on the pain score,c-Fos and substance P expressions in the dorsal horn of the spinal cord in the mice following formalin stimulation.Methods Fifteen C57/BL6 mice were randomized to 3 groups: control group(intact mice without estrogen treatment),OVX+V group(ovariectomized mice given vehicle) and OVX+E group(ovariectomized mice with subcutaneous injection of 2 ?g/d 17?-estradiol for 10 d).Pain score was used to assay the role of estrogen in affecting pain threshold in the mice following formalin injected into the right hind paw,and expressions of c-Fos and substance P in the dorsal horn of spinal cord(L3 to L5) in 2 h after injection of formalin was tested with immunohistochemisty to evaluate neuron activity and pain afferent fibers.Results Pain score was increased in ovariectomized mice following formalin stimulation,which was inhibited by estrogen especially in the early stage of secondary phase.The number of c-Fos-like immunoreactivity neuron(FLIN,P

In order to optimize the teaching process, improve the teaching quality and cultivate of emergency nursing talents with comprehensive quality, we systematically designed the teaching process of foreign body airway obstruction first aid. From the design ideas and curriculum innovation, we focused on the use of a variety of teaching methods, and we combined it with modern information technology, which demonstrated the practicability and operability of first aid skill. This teaching practice has proved that the systematically teaching reform design is helpful to improve the learning efficiency of nursing students and cultivate the comprehensive quality of students' emergency response ability.

Objective:To explore the application effects of work record analysis combined with emergency plan drill on the practice teaching of nursing students in department of emergency.Methods:A total of 80 nursing students who had clinical practice in the Department of Emergency of Beijing Shijitan Hospital Affiliated to Capital Medical University between February 2018 and August 2020 were selected as research subjects. They were divided into control group and observation group according to the admission order to the department. The control group was given routine teaching, and the observation group adopted work record analysis combined with emergency plan drill teaching. The theoretical knowledge level, the success rate of emergency treatment and teaching effect evaluation were compared between the two groups of nursing students before and after learning. SPSS 19.0 was used for t test and chi-square test. Results:After learning, the scores of theoretical knowledge (pre-hospital emergency, common emergency diseases, emergency treatment plan, and complications) of the two groups were higher than those before learning, and the scores in observation group were higher than those in control group ( P<0.05). The success rates of emergency treatments (electrocardiogram, electrocardiogram monitoring, blood sample collection, thrombolytic therapy coordination, and cardiopulmonary resuscitation) and satisfaction rates of teaching effects (fully understanding emergency work, improving the ability of independent learning, enhancing the ability of flexible use of knowledge, and active classroom atmosphere) were higher in observation group than control group ( P<0.05). Conclusion:Work record analysis combined with emergency plan drill can effectively ensure the teaching effects of nursing students in department of emergency, and has the advantages of improving the theoretical knowledge and practical operation ability.

On-site supervision is a risk-based regulatory system that requires the scientific development of supervision plans for quality risks and hidden dangers in pharmaceutical enterprises， the rational allocation of supervision resources based on their risk levels， and the implementation of classified supervision measures. In this study， the quality risk monitoring business support system is set up for pharmaceutical enterprises by establishing the quality risk expert database and quality risk monitoring index system for pharmaceutical enterprises based on the difficulty analysis of on-site drug supervision. Based on this support system， the quality risk classification method， the differentiated spot check strategy and business auxiliary visualization system are established. This support system is used to learn the risk level of pharmaceutical enterprises， so as to innovate supervision methods and optimize monitoring strategies. Taking Jiangxi Province as an example， it is verified that the support system can guide the risk assessment of sample enterprises， can improve the targeting of on-site drug supervision in the process of technical review， scheme editing， on-site implementation and comprehensive evaluation， and can effectively improve the quality and efficiency of supervision.

Objective: To investigate the relations between dietary intake during pregnancy and the incidence of their babies with small for gestational age (SGA). Methods: Data on demographics, dietary intake of protein, fat, and carbohydrates of the pregnant mothers during the first, second and third trimester, were collected. Information related to birth weight and gestational age of the infants were also gathered. A total of 8 102 women, who delivered their babies at the First Affiliated Hospital of Shanxi Medical University from March 2012 to September 2016, were enrolled in this project. Among them, 961 mothers had infants with SGA but the other 7 141 of them having normal infants. Unconditional logistic regression model was used to analyze the effect of dietary nutrient intake on SGA the first, second and third trimester. Results: We found that low dietary intake of protein during the first trimester and following trimesters during pregnancy were positively associated with higher risk of SGA (OR=1.534, 95%CI: 1.217-1.934; OR=1.268, 95%CI: 1.005-1.599; OR=1.310, 95%CI: 1.036-1.655). When adjusting for maternal pre-pregnancy BMI, we found that when mothers were with a pre-pregnancy BMI less than 18.5 or with low maternal intake of protein during the first trimester, positive association with higher risk of SGA (OR=1.872, 95%CI: 1.033-3.395; OR=1.754, 95%CI: 1.125-2.734), was noticed. However, for mothers with a pre-pregnancy BMI between 18.5 and 24.0 or with low protein intake during the first trimester, significant association with higher risk of SGA (OR=1.465, 95%CI: 1.089-1.972) was found. Conclusions Through our observation, maternal dietary intake during pregnancy seemed to be associated with the risk of SGA but the effects of dietary intake were different, according to the BMI of pre-pregnancy population. Early pregnancy appeares as the key period for dietary intake which may influence the SGA.