Objective This study was designed to observe the impact of cigarette cessation on anxiety and depression in patients with coronary heart disease (CHD).Methods A total of 690 cigarette smoking patients with CHD identified by coronary angiography (CAG) were included and analyzed in the study.The mental state were scored with Hamilton anxiety (HAMA) and depression (HAMD) scale both on admission and at 6-month follow-up.The patients were divided into two groups based on the cigarette cessation.The score of mental state between the two groups were compared.The patients were treated with percutaneous coronary intervention (PCI),coronary artery bypass grafting (CABG),or medicine therapy (MT).Results The clinic data and score of mental state were similar at the time of admission (HAMA:10.66±5.53 vs 11.09 ±5.61,P =0.311;HAMD:29.81 ± 10.13 vs 28.94 ± 10.22,P =0.266 4) between the two groups.After 6 months,the proportions of subjects in smoking cession group with anxiety (24.2％ vs 32.3％,P ＜0.05),depression (18.0％ vs 27.5％,P ＜0.05),and anxiety and depression (7.0％ vs 16.2％,P ＜0.001) decreased significantly compared with those in smoking group irrespective of the treatment strategy.Both the HAMA and HAMD scores were lower in smoking cessation group (HAMA:9.83±3.40;HAMD:24.91 ±7.90) than in smoking group (HAMA:10.98 ±4.87;HAMD:27.70 ± 11.16) (all P ＜ 0.001).Conclusions Smoking cessation is good for the relief of anxiety and depression in CHD patient.

Objective Shkbp is also called Shkbp1,can competitively inhibit binding CIN85 and c-Cbl,thereby blocking the epidermal growth factor receptor (EGFR) endocytosis and degradation,to play a role in tumor promotion.This study aims to explore the changes in blood cell classification and T cell subsets in blood,bone marrow,and spleen in Shkbp1-deletion (Shkbp-1-/-) mice.Methods Shkbp-1-/-transgenic mice were identified by PCR genotyping.Blood cell classification was performed using an automatic classification system.Flow cytometry was used to detect the T lymphocyte subsets in the blood,bone marrow,and spleen of Shkbp-1-/-and control mice.Results Routine blood examination showed that neutrophils and eosinophils tended to increase and showing significant differences,and there was no significant difference in lymphocytes.The flow cytometry results showed that there was a decrease of CD4+CD8+ double positive cells and increase of bone marrow CD3+ and CD4+ cells in the control group.However,there was a decreasing trend of CD3+,CD4+,CD8+,and CD4+CD8+ cells in the spleen tissues.Conclusions Shkbp1 is involved in the maturation and differentiation of blood cells,and affects the number of immune cells.This study lays a foundation for the study of how Shkbp1 is involved in the differentiation of blood cells.

Objective PSGL-1 is specifically expressed in leucocytes.The aim of this study was to explore the changes of myeloid-derived suppressor cells (MDSCs) in the spleen and bone marrow in PSGL-1-deficient mice.Methods PSGL-1 -/-mice were used in the experiment.After identification of the offsprings, flow cytometry was used to test the expression of CD11b and Gr-1 in C57 and PSGL-1 -/-mice.Results Compared with the C57 mice, the expression of MDSCs was up-regulated in the PSGL-1-deficient mice ( P <0.001).Conclusion The expression of MDSCs is upregulated in PSGl-1-deficient mice.

Objective The aim of this study was to determine the effect of a new method of cardiac assistant therapy with an extra-aortic balloon pump on the experimental dogs in which myocardial ischemia or infarction were induced, and to ob serve its effectiveness and feasibility. Methods Twelve animal models of myocardia 1 infarction were established with the method of left anterior descending coronary artery ligation. They were divided randomly into two groups, six in the experimental group and six in the untreated group. The end points observed were the differences between the two groups in the blood pressure, cardiac function, myocardial enzymes, infarction size and routine blood variables before procedure, 1,2, 3, 4, 5 and 6 hours after myocardial infarction. Results All six dogs in the experimental group were survived, with a mortality rate of 0.The number of death in the control group was three, with a mortality rate of 50%. Measurements such as mean blood pressure,cardiac output, cardiac index in the experimental group were better than those in the control group ( P ＜ 0.05 ). Mean heart rate before myocardial infarction in the experimental group was 156 beats per minute, as compared with 148 beats per minute in the control group, and was 128 vs. 67 beats per minute respectively six hours after myocardial infarction. The cardiac output was 3.48 vs. 4.98 liters per minute before myocardial infarction and was 6.10 vs. 0.85 liters per minute six hours after myocardial infarction. The average pressure was 94 mm Hg vs. 99 mm Hg before myocardial infarction and was 70 mm Hg vs. 33 mm Hg six hours after myocardial infarction. Conclusion The extra-aortic balloon pump significantly improved the hemodynamic variables of the experimental animals after myocardial infarction and reduced mortality. Injury to the blood cells may be the potential disadvantage.

Objective To investigate the stroke burden (prevalence, incidence, and mortality) and its risk factors for men and women, urban and rural residents at the provincial level in Shandong province. Methods This study formed part of the National Epidemiological Survey of Stroke in China (NESS?China). This population?based study included 25 190 adults living in Shandong province and was conducted in 2013. The data were derived from eight disease surveillance points (DSPs). They were located in Qingdao Shibei district, Zaozhuang Xuecheng district, Yantai Zhifu district, Laiwu Laicheng district, Yantai Penglai, Weifang Gaomi, Zaozhuang Yiyuan, Linyi Junan. All living subjects who had suffered a stroke by August 31, 2013 were considered as having a prevalent stroke. Incident stroke was defined as a first?ever stroke (both fatal and non?fatal) between September 1, 2012 and August 31, 2013. Fatal cases of incident strokes were used to estimate stroke mortality rate. Stroke cases were subcategorized as follows:ischemic stroke (IS), intracerebral hemorrhage (ICH), and subarachnoid hemorrhage (SAH). Stroke cases with no brain imaging within the first week of stroke onset or cases where the results of imaging were not available were classified as stroke of undetermined pathological type (UND). Results Of the 25 190 participants, 449 had experienced a prevalent stroke, 118 participants were diagnosed as having an incident stroke, 33 fatal cases were identified over the 12?month period. The crude rate of prevalence, incidence and mortality were 1 782.5 per 100 000 people, 468.4 per 100 000 person?years and 131.0 per 100 000 person?years. The age?standard rate of prevalence, incidence and mortality were 1 059.0 per 100 000 people, 279.7 per 100 000 person?years, and 76.0 per 100 000 person?years. Compared to women, the prevalence of stroke was markedly higher among men (1 463.3 per 100 000 people vs 2 265.0 per 100 000 people). Compared to urban residents, the prevalence of stroke was markedly higher among rural residents (563.7 per 100 000 people vs 2 203.6 per 100 000 people). Among all prevalent cases, there were 348 people suffering from IS, 75 cases suffering from ICH, 6 cases suffering from SAH, and 20 cases of UND. The prevalece rates of IS, ICH, SAH and UND were 1 385.5 per 100 000 people, 301.7 per 100 000 people, 23.8 per 100 000 people and 79.4 per 100 000 people, respectively. The three most prevalent risk factors in stroke cases were hypertension (66.4%), current smoking (26.1%), and alcohol drinking (24.9%). Conclusions Stroke was highly prevalent in Shandong province, China. The prevalence and incidence rates of stroke were significantly greater for men than women. Large geographical variations in the stroke burden were also observed in Shandong province, with a greater stroke burden observed in rural areas.

Objective:To evaluate the physicochemical properties, degradation and drug release behaviour, cytocompatibility and bacteriostatic properties in vitro of porous magnesium alloy scaffolds containing vancomycin/poly(lactic-co-glycolic acid) (PLGA). Methods:Porous magnesium scaffolds (Mg-2Zn-0.3Ca) were prepared using the template replication technique. The MgF 2 surface layer was obtained by high temperature fluorination. The vancomycin/PLGA porous magnesium alloy drug-loaded scaffolds were obtained by homogeneous lifting after submersion in a dichloromethane solution of PLGA containing vancomycin hydrochloride. According to the products at each stage of the preparation (scaffolds of magnesium alloy, magnesium fluoride alloy, PLGA coated magnesium fluoride alloy, and vancomycin/PLGA magnesium fluoride alloy), they were divided into an Mg group, an MgF 2 group, a PLGA group, and a vancomycin/PLGA group. Immediately after preparation, the material science characterization, degradation rate, drug release rate, antibacterial properties, hemocompatibility, and cell proliferation and differentiation ability of the scaffolds were measured and evaluated. Results:Vancomycin-loaded magnesium alloy scaffolds were successfully prepared with an average porosity of 66.39%. Their degradation rate [(0.540±0.102) mm/year] was significantly lower than that of the Mg ones [(10.048±0.297) mm/year] ( P<0.05). Their pH of degradation in Hank equilibrium salt solution was close to the physiological pH. Their release of vancomycin was fast in the first 48 h and gradually slowed down after 48 h. Their cumulative drug concentration reached a maximum of 43 mg/L at d 11; their vancomycin was still released slowly after d 11. The antimicrobial rate in the vancomycin/PLGA group (97.89%±0.28%) was significantly higher than that in the Mg group (74.92%±2.20%), the MgF 2 group (78.46%±2.59%) and the PLGA group (61.08%±4.21%) ( P<0.05). Their hemolysis rate (0.55%) was much lower than the requirement of ISO 10993-4 (5%). The extract liquid from them promoted the proliferation of rat bone marrow mesenchymal stem cells (BMSCs), showing a gradually increased proliferation rate from d1 (104.80%±5.13%) to d3 (112.36%±2.07%) and d7 (127.79%±4.61%). The calcium nodules in BMSCs were significantly increased at d 14, with an OD value of absorbance of 1.189±0.020, significantly higher than that in the Mg group (0.803±0.020), the MgF 2 group (0.878±0.028) and the PLGA group (0.887±0.026) ( P<0.05). Conclusion:Vancomycin/PLGA-loaded porous magnesium alloy scaffolds exhibit good material properties, antibacterial properties, biocompatibility and osteogenic properties in vitro.

Objective:Principal Investigator (PI) system is the most common model of scientific research organization and management in colleges and universities. PI is the head of the laboratory or the leader of the research team who has the authority to manage the supporting team, funds, and space (laboratory). We aim to explore the advantages and problems of the PI system implementation and deeply understand how to effectively and scientifically manage the project management, personnel coordination, and fund use of the entire team to promote the scientific research output of the PI platform of medical schools in China.Methods:By concluding and analyzing the management experience and main bottlenecks of PI laboratories at home and abroad, and summarizing our center's experience in assisting the management of PI laboratories in life sciences, we explored a new model of PI system development suitable for China.Results:Under PI system, the person in charge systematically learns to operate his or her laboratory scientifically. Perfection and improvement of the methodologies of team formation, laboratory public affairs management, and laboratory fund management can effectively avoid existing problems and follow the intrinsic laws of scientific research development and truth-seeking, promote the development in discipline development, interdisciplinary cooperation, personnel training, and study style construction.Conclusions:As the leader and manager of the scientific research team, PI is critical to the development of scientific research in universities in China. The incubation of a new scientific management model for the PI team is conducive to promoting the scientific and technological innovation of the PI team and the long-term development of scientific research institutions.

To study alkaloid constituents in Corydalis decumbens,thirteen compounds were isolated from 95％ ethanol extracts of Corydalis decumbens (Thunb) Pers.by silica gel,RP-C1s,Sephadex LH-20 column chromatographer,recry stallization,thin-layer chromatography and HPLC.Their structures were elucidated on the basis of spectral data combined with physiochemical properties as tetrahydropalmatine (1),oxyhydrastinine (2),doryanine (3),palmatine (4),bicuculline (5),canadine (6),tetrahydrocoptisine(7),corydaldine (8),epicorynoxidine (9),N-methylcorydaldine (10),(+)-corlumine (11),N-methyl-6,7-dimethoxyisoquinolone (12) and oxysanguinarine (13).Compounds 2,3,6,7,and 9-13 were isolated from this plant for the first time.In addition,compounds 2,3,and 9-13 were obtained firstly from this genus.Pharmacological experiments showed that tetrahydropalmatine (1) might have analgesic or sedative effects,and the bicuculline (5) could probably induce epilepsy.

Objective: To explore the postoperative effect, prognosis, and prognostic factors for benign testicular tumors. Methods: We retrospectively analyzed the clinical data of 35 patients with benign testicular tumors between May 2004 and May 2017 from Sun Yat-sen University Cancer Center, and the patients were followed up until October 2017. Results: The mean age of the 35 patients was 18.8 (0.4-44.0) years. Among them, 14 patients (40.0%) underwent testis-sparing surgery and 21 (60.0%) underwent radical orchiecto-my, and the tumor sizes were 1.8 (0.4-4.0) cm and 2.7 (1.0-8.0) cm, respectively. All patients had been cured without obvious perioper-ative complications. Postoperative histopathological tumor types included 18 epidermal cysts, 10 mature teratomas, 4 interstitial cell tumors, and 3 adenomatoid tumors. Frozen section examination of 10 cases had been operated, and all results were consistent with paraffin pathology. No patient who underwent testis-sparing surgery showed recurrence and/or metastasis during follow-up, and their sexual function and fertility were well preserved. Conclusions: Testis-sparing surgery is reliable, and the size of the tumor determines its implementation. An intraoperative rapid frozen section examination should be performed in patients with testicular neoplasms of a benign or variable nature diagnosed before operation. Patients with benign testicular tumors should undergo testis-sparing surgery, whereas others should undergo radical orchiectomy.