Objective To explore whether PI3K/ AKT signaling pathway participates in the inhibiting effect of Ru-tin on H2 O2-induced apoptosis in human lens epithelial cells( HLEC). Methods HLEC were divided into four groups: control group,H2 O2 group,rutin group,LY294002 group. Cell survival rates were determined by a 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay; cell apoptosis rates were monitored by flow cytometry with Annexin V-FITC and propidiun iodide(PI) staining. Western blot was used to measure the expres-sion levels of AKT and p-AKT. Results H2 O2 induced HLEC apoptosis. Compared with H2 O2 group,rutin group not only increased the expression lever of p-AKT,but also reduced cell apoptosis rate(P < 0. 01). In LY294002 group, LY294002, an inhibitor of PI3K/ AKT signaling pathway,could significantly block the change of these inde-xes produced by rutin group(P < 0. 01), but no significant change compared with H2 O2 group. Conclusion Rutin inhibits H2 O2-induced cell apoptosis and may be associated with PI3K/ AKT signaling pathway.

Objective To study the effect of a distal protection device (Pereusurge GuardWire: GW) on epicardial blood flow and myocardial perfusion in primary percutaneous coronary intervention. Method Acute STEMI patients treated with primary PCI were eligible to be studied. Inclusion criteria were: (1) within 12 hours from the onset of chest pain;(2) culprit leision with diameter stenosis≥70% and TIMI flow grade≤2. Exclusion criteria were:(1) patients undergoing thrombolytic therapy before PCI; (2) a culprit lesion in the left main coronary artery;(3)reference vessel diameter

Objective To develop a new type of lumbar puncture needle to facilitate to measure intracranial pressure,decrease the risks for intracranial infection and brain hernia.Methods The needle was composed of a body,no.1 and no.2 sleeves,a stylet,a needle base,a catheter,joints and etc.The needle had body and stylet made of stainless steel,the catheter manufactured with medical silicone tube,the joints produced by medical rubber and the remained components by medical plastics.Results The developed needle executed pressure measuring,cerebrospinal fluid collection and medication injection with no extracting the stylet.The outflow velocity of cerebrospinal fluid was limited,and the incidences of the complications were decreased including infection,brain hernia and etc.Conclusion The lumbar puncture needle has simple structure,easy operation and high safety,and thus is worthy promoting practically.

One step dot-ELISA method for the rapid determination of ABO blood groups in humam body fluids(or stains)was established using enzyme-labelled anti-A,--B and anti--H monoclonal antibody (McAb).The sample was applied on the nitrocellulose membrance as a dot. After washing, the appropriate McAb wasadded on top of the dot, and then followed by adding 3, 3'-diaminobenzidine(DAB). The brown color indi-cated the positive reaction. The ABO blood typing of 521 saliva samples including both secretor and non-se-cretor were carried out. All the results were correct. The advantages of this method are accurate, sensitive,rapid, easy to perform, as well as not time consuming. It is more sensitive than the conventional hemaggluti-naton inhibition test.

In order to better fulfill the tasks of research,to turn out more quality papers,to produce outstanding results,and to further strengthen management and supervision of scientific research,the"quantitative economic management of scientific research quotas" was established in the hospital.Applying of the measure in scientific research management in the past eight years it was shown that the desired results were achieved,the academic advancement and the personnel growth were greatly promoted.

Objective:To explore the differences between emergency healthcare-associated pneumonia (HCAP) and community-acquired pneumonia (CAP), to analyze whether HCAP is a relatively independent type pneumonia in the emergency department in China.Methods:Clinical data of HCAP and CAP patients admitted to the emergency department of Beijing Tiantan Hospital, Beijing Chaoyang Hospital of Capital Medical University and Huilongguan Hospital from September 2018 to May 2019 were retrospectively analyzed. General information of the patients, types of basic diseases, laboratory examination within 24 h of admission, etiological examination results, empirical anti-infection treatment plan, mechanical ventilation and clinical outcome were collected. The pneumonia severity index (PSI) was used to assess the pneumonia severity. The measurement data were expressed as mean ± standard deviation for t test, and the counting data were performed by χ 2 test. A P<0.05 indicated statistical difference. Results:One hundred and five HCAP patients and 105 CAP patients were collected. The number of HCAP combined with two or more basic diseases was higher than that of the CAP group. There were statistically significant differences between the two groups in white blood cell count, mean hemoglobin and blood lactic acid level.The PSI score of the HCAP group was higher than that of the CAP group (134.0±26.3 vs 113.0±16.34). The PSI score grade IV of the HCAP group was lower than that of the CAP group, while the PSI score grade V of the HCAP group was higher than that of the CAP group, with statistically significant differences ( P<0.05). In the HCAP group, 73 strains (69.52%) and 55 strains (52.38%) of multi-drug resistant strains were isolated. Acinetobacter baumannii and Streptococcus pneumoniae, Klebsiella pneumoniae and Escherichia coli in the HCAP group were more than those in the CAP group. The drug resistance rate of pseudomonas aeruginosa to imipenem in the HCAP group was higher than that in the CAP group (22.2% vs 10.0%); the drug resistance rate of Acinetobacter baumannii to cefoperazone/sulbactam was lower than that in the CAP group (27.3% vs 54.5%); the drug resistance rate of Pseudomonas aeruginosa to Meropenem was lower than that in the CAP group (45.5% vs 72.7%). The proportion of carbapenems in the initial empirical anti-infection treatment in the HCAP group was higher than that in the CAP group (21.00% vs 10.48%), and the difference was statistically significant. The ratio of invasive mechanical ventilation and the fatality rate in the HCAP group were higher than those in the CAP group (21.00% vs 7.62%, 21.00% vs 8.57%; both P<0.05). Conclusions:HCAP patients in emergency department are complicated with a variety of basic diseases, high drug resistance rate of pathogenic bacteria, and more advanced drugs are required for initial empirical anti-infection treatment, high proportion of mechanical ventilation, and high fatality rate. HCAP is a relatively independent category of pneumonia in emergency in China.

Objective To investigate and compare the predictive value of 2 prediction scoring systems for diagnosis of coronary heart disease (CHD) in patients with suspected symptom, and provide information for diagnosis and therapy. Methods By prospectively studying a database of 272 patients with suspected CHD,the total score was calculated by prediction scoring system including PROCAM (The Prospective Cardiovascular Munster Study) and SCP(Suspected CHD Prediction Scoring System) with the data of clinic parameters and risk factors. All patients received coronary angiography and they were categorized into the CHD group (n =94) and non CHD group ( =178) according to the angiography result. The relationship between total scores and the SYNTAX score was evaluated by Spearman analysis and the value of the prediction scoring system was evaluated by the ROC (receiver operating characteristic) system. Results The score of PROCAM was from 6. 00 -77. 00(41. 76 ± 19. 91), and the score was significantly correlated with the extent and severity of coronary artery atherosclerosis (rs = 0. 420,P = 0. 023). The score of SCP was from 1. 00 - 13. 00(8. 64 ± 3. 42), and it was significantly correlated with the SYNTAX score (rs = 0. 482,P = 0. 016). The areas under ROC was 0. 770 (P = 0. 007) in PROCAM and that was 0. 733 (P = 0. 012) in SCP. Conclusions The nature and extent of coronary artery atherosclerosis could be evaluated by the scoring system effectively,which had a good correlation with CAG result.

OBJECTIVETo investigate the influence of glucocorticoid on phenotype of thymic dendritic cells in mice and to investigate the protective effect of Yougui Pill (YGP) on it.

METHODSBALB/c mice allocated in the group A and B were treated respectively with 10 mg/kg hydrocortisone, alone and combined with 20.81 g/kg YGP. The control mice were treated with normal saline. The changes before and after treatment of I-A(d) and H-2K(d) antigen presentation molecules expression in CD11c(+) and CD45(+) thymic dendritic cells of mice were analyzed by flow cytometry assay, and the expression of intercellular adhesion molecule-1 (ICAM-1) and leukocyte function-associated antigen-1 (LFA-1) mRNA in thymocytes were determined by RT-PCR as well.

RESULTSThe percentage of I-A(d+) and H-2K(d+) in CD11c(+) in Group A after treatment was 46.77 +/- 4.32% and 64.34 +/- 7.69% respectively, as compared with those in the control group (65.81 +/- 7.69% and 31.88 +/- 5.01%), the percentage of I-A(d+) was lower and that of H-2K(d+) was higher significantly (all P <0.01). Meantime, the expression of ICAM-1 and LFA-1 in thymocyte in Group A (30.11 +/- 2.51% and 30.40 +/- 3.77%) was significantly lower than that in the control group (46.35 +/- 3.34% and 47.28 +/- 2.91%) respectively (P <0.01). Changes in Group B showed that treated by hydrocortisone in combination with YGP, the above-mentioned hydrocortisone-induced changes could be obviously reversed, the outcome of CD11c(+) I-A(d+) was 54.19 +/- 5.08%, ICAM-1 33.97 +/- 2.04% and LFA-1 34.80 +/- 2.92%, the difference between the two treated groups in these indexes all showed statistical significance (P <0.05).

CONCLUSIONGlucocorticoidcan inhibit the expression of major histocompatibility complex class II antigen molecule, but promote the expression of major histocompatibility complex class I in CD11c(+) and CD45(+) dendritic cells, down-regulate ICAM-1 and LFA-1 transcription, while the tonifying yang recipe, YGP, has a dominant protective effect against the above actions of glucocorticoid.

Animals ; CD11c Antigen ; metabolism ; Dendritic Cells ; cytology ; drug effects ; immunology ; Drugs, Chinese Herbal ; pharmacology ; H-2 Antigens ; metabolism ; Histocompatibility Antigens Class II ; metabolism ; Hydrocortisone ; toxicity ; Intercellular Adhesion Molecule-1 ; metabolism ; Leukocyte Common Antigens ; metabolism ; Lymphocyte Function-Associated Antigen-1 ; metabolism ; Mice ; Mice, Inbred BALB C ; Phenotype ; Protective Agents ; pharmacology ; Thymus Gland ; cytology ; drug effects ; immunology

Objective To examine the expression of scinderin in primary hepatocellular carcinoma (HCC) and its paired portal vein tumor thrombus (PVTT) tissues; and to explore its role in the development of HCC and its relationship with prognosis of HCC.Methods Immunohistochemistry was used to detect the expressions of scinderin in tumor-adjacent normal liver tissues,HCC tissues and PVTT tissues from 33 patients.Results The positive expression rates of scinderin in tumor-adjacent normal tissues,HCC tissues and PVTT tissues were 69.7％ (23/33),45.5％ (15/33) and 24.2％ (8/33) respectively.A significantly lower scinderin expression was found in HCC tissues when compared with tumor-adjacent normal tissues (P ＜ 0.05).Also,the expression of scinderin in PVTT tissues was significantly lower than in HCC tissues (P ＜ 0.05).The expression of scinderin in HCC tissues significantly correlated with tumor size,absence of tumor capsule and serum AFP (P ＜0.05).The recurrence-free survival (RFS) and overall survival (OS) of Scinderin-positive patients were significantly longer than Scinderin-negative patients (P ＜ 0.05).Multivariate analysis revealed scinderin expression level to be an independent risk factor affecting RFS and OS after curative resection.Conclusions Scinderin was down-regulated in HCC tissues and PVTT tissues when compared with its paired tumor-adjacent normal liver tissues.The expression level of scinderin correlated with HCC recurrence and prognosis.Scinderin can be used as an indicator of prognosis of HCC patients with PVTT.

Objective To investigate the clinical value of ultrasonic diagnosis for neonatal annular pancreas,analyze the reasons of missed diagnosis and misdiagnosis,and improve diagnostic accuracy of ultrasonography for this disease.Methods Clinical data of 98 newborns with annular pancreas confirmed by gastrointestinal contrast and surgery were analyzed retrospectively.Preoperative ultrasonogram were compared with the result of gastrointestinal contrast and surgery.Ultrasound images failed to be correctly dignosed were further studied to summarize diagnostic points for this disease.Results Among the 98 cases, 75 were correctly diagnosed by ultrasound with a diagnostic accordance rate of 76.5%,1 8 were missed diagnosed and 5 were misdiagnosed with a total misdiagnosis rate of 23.5%.Ten cases associated with other congenital gastrointestinal tract anomalies were missed diagnosed due to ignoring scanning pancreas.Five cases were missed diagnosed due to obvious intestinal cavity flatulence.Three cases were missed diagnosed due to lack of awareness of the disease.Five cases were misdiagnosed for duodenal stenosis or duodenal atresia.Conclusions Ultrasound has important diagnostic value for neonatal annular pancreas,providing the dignostic evidences for clinical treatment.Thus it can be used as the preferred auxiliary examination of the disease.Since annular pancreas is often accompanied by other gastrointestinal malformations and can be interfered by abdominal gas,missed diagnosis and misdiagnosis occurred easily.To improve the accuracy of ultrasonic diagnosis,all causes of neonatal gastrointestinal tract obstructions should be considered during the examination.