Chronic obstructive pulmonary disease (COPD) is a heterogeneous lung condition characterized by persistent airflow obstruction caused by long-term airway inflammation or alveolar abnormalities, often manifested as chronic respiratory symptoms and decreased lung function. In recent years, experimental research has shown that mesenchymal stem cells (MSC) have anti-inflammatory, immunomodulatory, and repairing properties of lung epithelial cells, which can be used to treat various diseases including COPD. This article is mainly based on the main findings of in vitro and in vivo animal model experiments and clinical studies of MSC treatment for COPD. It summarizes and discusses the possible mechanisms of action of MSC as a new therapy, and provides new ideas for clinical treatment of COPD.

Innovation and entrepreneurship training through higher education sector is an important way to foster innovative talents and enhance their social adaptation abilities. We reformed and optimized the experimental teaching of human anatomy and animal physiology with the aim to promote the integration of students' theory learning with practice, to promote students' ability to apply anatomical and physiological knowledge to medicine, pharmacy, and life practice. Last but not least, students' innovative consciousness of applying scientific research to serve the society could also be enhanced. These practices would enhance the practical ability of the students through integrating the innovation education and professional education.
Animals ; Curriculum ; Humans ; Students

The JAK/STAT/SOCS signaling pathway can mediate a variety of cytokines involved in inflammation, tumor, and autoimmune diseases and it also plays an important role in hepatitis B virus (HBV) infection-related liver diseases. This article briefly reviews the structure and signal pathway regulation of JAK-STAT and SOCS and elaborates on their role in the development and progression of HBV-related chronic hepatitis B, liver cirrhosis, liver failure, and hepatocellular carcinoma. The final analysis shows that the JAK/STAT/SOCS signaling pathway is dysregulated in HBV-related liver disease and is involved in the development and progression of the disease, and it may even influence the treatment and prognosis of the disease.

Institutions of higher learning undertake the important responsibility of personnel training. Teaching and scientific research are two indispensable functions of colleges and universities, and the relationship between them is unbalanced and low integration in the current education and teaching. According to the existing problems in the experimental course of human anatomy and animal physiology, we explored how to apply the ideological and political education of scientific research to improve students' cognitive ability, develop experimental projects combined with scientific research practice, and strengthen the combination of classroom teaching and scientific research practice, aiming to establish the basic concept of the integration of science and education. These are favorable for the realization of the training goal of high-quality innovative talents.
Animals ; Curriculum ; Humans ; Students ; Universities

Objective:To explore the efficacy of apatinib combined with S-1 capsule in the treatment of patients with advanced recurrent and metastatic esophageal cancer.Methods:A total of 140 patients with advanced esophageal cancer were selected as test subjects from January 2017 to January 2019 in Shandong Tai′an Cancer Prophylaction-Therapeutic Hospital. These patients were randomly divided into observation group (72 cases) and control group (68 cases) using random number table method. The patients in the observation group were treated with oral apatinib combined with S-1 chemotherapy, and the patients in the control group was only given S-1 chemotherapy. The short-term and long-term efficacy and adverse reactions of the two groups were observed.Results:The objective remission rates of the observation group was 38.9% (28/72), higher than that in the control group (22.1%, 15/68), with a statistically significant difference ( χ2=4.655, P=0.031). The disease control rate of the observation group was 88.9% (64/72), higher than that in the control group (61.8%, 42/68), and there was a significant difference between the two groups ( χ2=13.993, P<0.001). The median progression-free survival of the observation group and the control group was 5.9 months and 2.7 months respectively, the median overall survival was 14.8 months and 7.9 months respectively, and there were significant differences between the two groups ( χ2=5.477, P=0.026; χ2=6.083, P=0.014). The adverse reactions of the two groups were mild, grade 1-2, mainly including fatigue, leukopenia, hand-foot syndrome, hypertension and proteinuria, with incidences of 59.7% (43/72), 50.0% (36/72), 8.3% (6/72), 12.5% (9/72), 9.7% (7/72) in the observation group, and 51.5% (35/68), 57.4% (39/68), 17.6% (12/68), 4.4% (3/68), 4.4% (3/68) in the control group, there were no significant differences between the two groups ( χ2=0.965, P=0.326; χ2=0.760, P=0.383; χ2=2.708, P=0.100; χ2=2.919, P=0.088; χ2=0.794, P=0.373). Conclusion:Apatinib combined with S-1 is effective, safe and tolerable in the treatment of recurrent and metastatic esophageal cancer.

Patients with chronic hepatitis B (CHB) often have immune-mediated liver injury, and it is considered that the interaction between viral infection and immune response is an important cause of disease progression. CHB can progress to liver fibrosis, liver cirrhosis, and even hepatocellular carcinoma (HCC). This article reviews the discovery of T helper 17 (Th17) cells and regulatory T (Treg) cells, describes their own features, and elaborates on their role and mechanism of action in maintaining the stability of the immune system. This article also analyzes the role of Th17/Treg cell imbalance in CHB, liver fibrosis, liver cirrhosis, and HCC and points out that Th17/Treg cell imbalance may promote the aggravation of HBV-related liver diseases.

In recent years, the incidence of sleep disorders is increasing gradually, and sleep disorder has become a common and frequently-occurring disease in community. While drugs bring a series of side effects, non-pharmacological therapy has become a hotspot in sleep quality study field. It is found that"Gua sha" therapy has a significant effect in improving sleep quality as one of the traditional Chinese medicine (TCM) care techniques by literature review. This paper summarized the current situation and analyzed the deficiencies of "Gua sha" in sleep improvement basing on the theoretical foundation of Chinese medicine and biological mechanism, so as to provide references for future research and provide guidance for promoting the application of "Gua sha" therapy in community.

Objective To determine the optimal dose of dexmedetomidine for intravenous analgesia after open radical resection of intestinal neoplasms when mixed with flurbiprofen axetil and butorphanol.Methods A total of 120 patients of both sexes,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,aged 20-60 yr,weighing 45-80 kg,undergoing elective open radical resection of intestinal neoplasms,were divided into 4 groups (n =30 each) using a random number table:control group (group C)and different doses of dexmedetomidine groups (group DEX1,group DEX2,group DEX3).Group C received flurbiprofen axetil 2 mg/kg and butorphanol 0.05 mg/kg for intravenous analgesia.In DEX1,DEX2 and DEX3 groups,dexmedetomidine 0.3 μg/kg was intravenously infused starting from 30 min before the end of surgery,and the analgesia solution contained dexmedetomidine 1,2 and 3 μg/kg,respectively,which was mixed with flurbiprofen axetil 2 mg/kg and butorphanol 0.05 mg/kg in 100 ml of 0.9％ normal saline,and the mixture was infused at a rate of 2 ml/h.Butorphanol 0.5 mg was intravenously injected as a rescue analgesic,postoperative pain was assessed using the visual analog scale at coughing,and visual analog scale score was maintained ＜4.The requirement for rescue analgesics was recorded within 48 h after operation.The occurrence of postoperative adverse reactions such as nausea and vomiting,respiratory depression,somnolence,bradycardia,hypotension and over-sedation,patient's satisfaction with analgesia and length of postoperative hospital stay were recorded.Results Compared with group C,the rate of rescue analgesia after operation was significantly decreased,and the degree of satisfaction with analgesia was increased in DEX2 and DEX3 groups,and the incidence of postoperative somnolence was significantly increased in group DEX3 (P＜0.05).No other adverse effects were found in DEX1,DEX2 and DEX3 groups.Conclusion When mixed with flurbiprofen axetil and butorphanol,the optimal dose of dexmedetomidine for intravenous analgesia after open radical resection of intestinal neoplasms is 2 μg/kg.

Objective To observe the effects of mild hypothermia on the myocardial mitochondrial injury induced by oxidative stress after restoration of spontaneous circulation (ROSC) in rat of cardiac arrest model.Methods Eighteen male Wistar rats were randomly (raudom number) divided into normal temperature group and mild hypothermia group after ROSC.Ultrasound was used to measure the left ventricular ejection fraction (EF),shortening fraction (FS) and stroke volume (SV).The levels of glutathione (GSH),malondialdehyde (MDA) and adenosine triphosphate (ATP) in myocardium were detected.The ultramicroscopic structure of myocardial mitochondria was observed under transmission electron microscope at 4 h after ROSC.Results There were no significant differences in basic life support (BLS) time,dosage of epinephrine and number of defibrillation attempt between two groups (P ＞ 0.05).The concentrations of GSH and ATP in myocardium of rats in hypothermia group were significantly higher than those in normal temperature group,while the level of MDA was significantly lower in hypothermia group than that in normal temperature group.Echocardiographic findings showed that hypothermia could significantly improve the EF,FS and SV after ROSC.The hypothermia decreased the myocardial mitochondria injury rather than normothermia [mitochondrial injury score:(0.21-±0.04) vs.(0.42 ±0.08),P ＜ 0.05].Conclusions In this model,mild hypothermia can decrease myocardial oxidative stress injury,improving the cardiac function after ROSC.

An ultra-high performance liquid chromatography-tandem mass spectrometry ( UHPLC-MS/MS ) method was developed and validated for the simultaneous determination of 9 kinds of trace endocrine disrupting chemicals in biological samples using ultrasonic-assisted extraction followed by purification with gel permeation chromatography ( GPC) and silica gel columns. The sample extracts were purified by Bio beads S-X3 GPC columns with cyclohexane/ethyl acetate (1:1, V/V) as mobile phase, and the target compounds were eluted in the fraction of 12-28 mL retention volume. Electrospray ionization source operated in positive mode and atmospheric pressure chemical ionization source operated in negative mode were used for mass spectrometric detection. Data acquisition was carried out in multiple reaction monitoring mode. Recoveries were predominately within 65 . 2%-118 . 0%. Method quantification limits were 0 . 1-9 . 7 ng/g dw ( dry weight ) . This method was successfully applied to the analysis of the target endocrine disrupting chemicals in carps collected from the Pearl River. with the exception of carbanilide and triclocarban, the rest analytes were detected in fish tissue samples, with the concentrations varied within the range of 0. 1-22. 6 ng/g dw.