This paper describes the design of an ECG OEM module based on W78LE54 single chip.The module samples standard I,II and III lead ECG signals in 200Hz rate.The board communicates with computer through the Universal Serial Bus(USB) by using CP2101,a highly-integrated USB-to-UART bridge chip,which can realize PC peripheral's plug&play.

Objective To observe the clinical efficacy and safety of propafenone on paroxysmal supraventricular tachycardia (PSVT).Methods 37 patients with PSVT were injected with 70 mg propafenone intravenously in 5 minutes.The unrecovered patients in 20 minutes were injected with 70 mg propafenone intravenously again,who were given 70 mg propafenone intravenously once again if not controlled in late 30 minuted.Blood pressure,heart beat,12 lead electrocardiogram were recorded before and after use of drug.Results The significant effective rate was 77.5% and effective rate was 21.6% with overall effective rate of 97.3% and effective time of 1～55 (7.1?2.8) minutes.The average accumulated dose of propafenone was 105 mg.Some side effects were observed in part of patients,including slight reduction of blood pressure,P R interval.QRS wave and Q T interval prolonged,temporary type sino atrial block,vertigo and nausea,etc whice could vanish gradually if not treated.Conclusion Propafenone by intravenous injection can quickly contro PSVT with saftey and effectiveness.

Objective To investigate the effect and mechanism of Jinkuishenqi wan (JGSQ) on pulmonary fibrosis. Methods Pulmonary fibrosis was induced by bleomycinA5 in SD rats. Rats in treatment group were killed after being treated by JGSQ daily for 28 days. The lungs of all rats were harvested for histopathological studies. The contents of transforming growth factor-?_1 (TGF-?_1) in lungs were measured and compared. Results The contents of TGF-?_1 in lungs increased significantly in model group as compared with normal group and treatment group (P

Objective To investigate the correlation between the expression of peripheral blood CD8 + T lymphocytes and the severity degree of hand,foot and mouth disease( HFMD)in children infected by enterovirus( EV)71 at different ages,and further to predict the role of the expression of CD8+ T lympho-cytes played in the occurrence of neurological complications infected by EV71. Methods A total of 138 pe-ripheral blood samples derived from the confirmed HFMD cases were collected in the department of infectious disease at Kunming Children′s Hospital between March and September in 2014,including 33 mild cases,45 severe cases,and 60 critical cases. Patient ages were 9 months to 5 years old. Flow cytometry was used to detect the expression of peripheral blood CD8 + T lymphocytes in all of above patients. Results Compared to the reference value of CD8 + T lymphocytes in normal healthy children at different age groups,the percentage of peripheral blood CD8 + T lymphocytes elevated or increased slightly in patients of all ages,except the obvi-ously increasing expression in the age group of ~2 years and decreasing expression in critical cases of the age group of ~5 years. The expression of peripheral blood CD8+ T lymphocytes significantly increased in mild and severe patients but slightly increased in critical patients of the age group of 9 to 15 months,gradually de-creased in the age group of ~2 years and slightly increased in mild and severe cases but decreased in critical patients of the age group of ~5 years. There were significant differences between the patients in mild condi-tion and in severe condition or critical condition respectively within the age group of ~2 years( P﹤0. 05 ), and there were no significant differences in other age groups between different severity of disease. Conclusion
There are correlations between the expression of CD8+ T cells and the severity of HFMD in patients at different ages. Especially,the patient′s condition developing into severe degree is associated with the rapid decreasing of CD8 + T cells in HFMD patients of the age group of ~2 years. CD8+T cells play an important role in antiviral immune response in HFMD patients of ~2 years old.

AIM: To investigate the effect and mechanism of Jingui Shenqi Pill(JGSQ) on pulmonary fibrosis. METHODS: Pulmonary fibrosis was induced by bleomycinA5 in SD rats.Rats in drug group were killed after being treated by taking JGSQ daily for 28 days.The lungs of all rats were harvested for histopathological studies.The contents of tumor necrosis factor ?(TNF-?)in lungs were measured and compared. RESULTS: The degree of the alveolitis and pulmonary fibrosis, the contents of TNF-? in lungs increased significantly in the model group as compared with the normal group and the JGSQ treated group(P

Aim To investigate the effect of small inter-ference RNA-mediated silcencing of the Bmi-1 gene on cell invasion and metastasis in human nasopharyngeal carcinoma cell line CNE-1 . Methods Chemically syn-thesized siRNA targeting the Bmi-1 gene was transfect-ed into CNE-1 cells, which had high invasive and me-tastatic potential. The expression of Bmi-1 mRNA and protein were detected by quantative Real-time PCR and Western blot, respectively. The effects of Bmi-1 knockdown on CNE-1 cells migration and invasion were analysied by Transwell migration assay and Matrigel in-vasion assay. Results Transfected with Bmi-1 siRNA significantly down-regulated the expression of Bmi-1 mRNA and protein as compared with the control group. CNE-1 cells transfected with Bmi-1 siRNA had lower levels of invasion and migration capacity than cells in the control group. Conclusion SiRNA-media-ted silencing of the Bmi-1 gene could significantly in-hibit cell migration and invasion in human nasopharyn-geal carcinoma cell line CNE-1 .

AIM: To investigate the effects of TGF-?_1 and signal protein Smad3 on rat cardiac myocyte hypertrophy.METHODS: The total protein was analyzed by flow cytometry and the ANF mRNA expression was measured by RT-PCR to judge the hypertrophy of cultured neonatal cardiac myocytes.Smad3 mRNA expression in cardiac myocytes was measured by RT-PCR,and the protein expression of Smad3 was analyzed by Western blotting.RESULTS: TGF-?_1 significantly increased the total protein in cardiac myocytes and promoted ANF mRNA expression,compared with control group.In cultured neonatal myocytes,AS-ODN of Smad3 inhibited myocyte hypertrophy induced by TGF-?_1.Smad3 mRNA and protein expression increased at 15 min after incubated with TGF-?_1,reached the peak at 1 h,and declined at 4 h.CONCLUSION: TGF-?_1 and signal protein Smad3 may participate in the progress of rat cardiac myocyte hypertrophy.

Objective:To determine the effects of silencing glucose regulated protein ( GRP94 ) on the proliferation and apoptosis of breast carcinoma MCF7 cells. Methods:Chemically synthesized siRNA targeting GRP94 gene and transfected into MCF7 cells used by Liopfectamine RNAIMAX. The mRNA and protein expression levels of GRP94,cyclinD1,Bax and Bcl-2 were detected by Real-time PCR and Western blot. CCK8 assay was used to detect the effect of specific GRP94 siRNA on cell proliferation and the effect on cell cycle and apoptosis were analyzed by flow cytometry and Hoechst 33258 staining. Results:Compared with the siRNA-NC cells, the expression of GRP94 was significantly down-regulated in MCF7 cells. Knockdown of GRP94 in MCF7 cells decreased cell proliferation and promoted cell apoptosis. The expression of cyclinD1and Bcl-2levels were significantly reduced, and Bax level was increased in siRNA-GRP94 MCF7 cells. Conclusion: The siRNA-mediated GRP94 silence significantly inhibits MCF7 cell proliferation,promoted cell apoptosis by down-regulating cyclin D1,Bcl-2 expression and up-regulating the Bax expression in MCF7 cells.

This paper firstly expounded the origin of the ritual-music culture.Then it explored the nature of the ritual-music culture which respects the laws of nature,bases on the position,sticks to the rules,exerts subjective initiative,fulfillseach duty,promotes harmony,unifies objectivity and subjectivity,complements each other and pursuits civilization.Analysis of the ritual-music culture provided inner value pursuit,conscientious code of conduct and healthy mental attitude for the construction of a harmonious doctor-patient relationship,which is of great theoretical and practical significance to handle the doctor-patient relationship properly.

OBJECTIVE:To establish the mesoporous carbon nano-drug delivery system (MCNs) with chemotherapy drugs loaded and holding photothermal and photodynamic combined effect,and study its anti-multidrug-resistant tumor effect in vitro. METHODS:MCNs was prepared by low-concentration hydrothermal route,and the MCNs surface was carboxylated by the mixed acid ultrasound method to made MCNs-COOH (MCNC). The morphology and surface properties were evaluated. Adriamycinc (ADR)was loaded into MCNC to fabricate ADR/MCNC via adsorption method. Drug loading capacity was calculated by UV,and drug release profile was investigated by dialysis method. ADR-resistant human breast cancer MCF-7/ADR cells were chosen,and cell uptake and positioning of ADR/MCNC were observed by confocal laser microscopy;cytotoxicity of ADR/MCNC was detected by MTT method;and intracellular reactive oxygen species(ROS)level under NIR irradiation was measured by flow cytometry. RE-SULTS:The particle size of prepared MCNs was about 90 nm,with carboxyl in surface. The specific surface area was 541.62 m2/g,pore volume was 0.34 cm3/g,and pore size distribution was 2.5 nm,with significant photothermal effect. The drug loading ca-pacity of ADR/MCNC was 47.4%,showing pH/NIR responsiveness release characteristics. It can promote ADR in cell uptake and nuclear accumulation and induce MCF-7/ADR cell to generate ROS under NIR irradiation,with significant inhibitory effect. CON-CLUSIONS:MCNs is prepared successfully,and ADR/MCNC has an effect on anti-multidrug-resistant tumors.