Scientific research management has become a crucial work in each hospital.The quality of scientific research management directly affects the level of scientific research development.Scientific research secretaries act as the direct participants and grassroots community of scientific research management,whose strengths and weaknesses of development related to the level of scientific research management directly.This study put forward several countermeasures on the barriers of hospital scientific research secretaries development,aiming to promote the development of hospital's scientific research and discipline construction.

Electrical stimulation is well used in medical therapeutics,but the mechanism still needs to be studied further. This paper applies an electrical stimulator to generate low frequency pulse,which is used to stimulate at the root of the thumb,right on the median nerve. EEGs were recorded before and after the stimulation. Comparing the EEGs changes between the former and latter using power spectral analysis,the effect of low frequency electrical stimulation on human nerve excitability is discussed.

Objective To investigate the relationship between C-reactive protein and clinical significance of Tokyo Guidelines for acute cholangitis.Methods Analyzed 739 cases with acute cholecystitis in Xianyang Central Hospital of Shaanxi province.Records of patients diagnosed with acute cholecystitis were screened between September 2013 and October 2015.The criteria of Tokyo guidelines were used in grading the severity of acute cholecystitis.Patients were divided into 3 groups,Group Ⅰ (n =450),Group Ⅱ (n =260) and Group Ⅲ (n =29).C-reactive protein values at the time of admission were analyzed and compared among the groups.Results Mean C-reactive protein levels of groups were found to be significantly different,18.74 mg/L in Group Ⅰ,133.67 mg/L in Group Ⅱ,and 257.43 mg/L in Group Ⅲ.C-reactive protein values among the groups were found to be highly and significantly correlated with the disease grade (P ＜ 0.01).After evaluating C-reactive protein levels according to the grade of the disease,Group Ⅱ was distinguished from Group Ⅰ with a cutoff C-reactive protein level of 72.54 mg/L,and from Group Ⅲ with a value of 195.85 mg/L.Those results were found to be statistically significant (P ＜ 0.01).Conclusion C-reactive protein can be accepted as a strong predictor in classifying different grades of the disease,and treatment can be reliably planned according to this classification.

Objective To investigate the changes of anticardiolipin antibody(ACA) and protein C(PC) in cirrhotic patients with or without portal vein thrombosis(PVT). Methods During Jan. 2006 to Dec. 2007, 60 cirrhotic patients with (n=20) or without (n=40) PVT were analyzed. The concentrations of prothrombin time (PT), activited patial thromboplastin time (APTT), fibrogen, ACA and protein C (PC) were determined. Results The positive rate of ACA was 35% (7/20) in PVT group and 10% (4/40) in control group (P=0.045). The average level of ACA-IgG was significantly higher in PVT group [(10.15±5.31)U/ml] than that in control group [(6.70±3.75) U/ml]. The concentration of PC was significantly lower in PVT group [(2.47±0.62) mg/L] than that in control group [(2.93±0.88)mg/L]. No difference was found in APTT, levels of fibrogen and ACA-IgM between two groups. PT and APTT were progressively prolonged and fibrogen and PC were decreasing with the severity of Child-Pugh, respectively. The levels of ACA-IgG and ACA-IgM were increasing with the severity of Child-Pugh. Conclusions The coagulation and anticoagulation system is abnormal in patients with PVT who has higer ACA-IgG level and lower PC level. It is indicated that the ACA and PC may play an important role in formation of PVT.

Objective To investigate the current situation of occupational burnout of doctors in west China and to explore the relationships among burnout,social support and work-family conflicts.Methods 611 doctors in west China were assessed by Chinese Maslach burnout inventory( CMBI),social support rating scale(SSRS) and work-interference-with-family and family-interference-with-work questionnaire.Results 14.1％ of the doctors in west China got high scores on emotional exhaustion(EE),49.4％ of them high scores on depersonalization(DP) and 33.1％ high scores on reduced personal accomplishment (RPA) ; 27.3％ experienced mild burnout,43.7％ moderate burnout and 3.3％ severe burnout.Doctors who had worked for 5 ～ 10 years and those for 11 ～ 20 years experienced greater EE.Those doctors with bachelor or master degree and intermediate or senior titles got highest level of depersonalization.Doctors in second-class hospitals got highest scores of depersonalization,and those who worked in first-class hospital experienced the highest sense of achievement.Logistic regression analysis showed that social support was a protective factor for burnout,but the conflict between work and family was a risk factor.Conclusion The status of occupational burnout among the doctors in west China is in a grave condition,the balance between family and work,and social supporting is crucial for doctors to resist the occupational burnout.

Objective To investigate the relationship between thrombomodulin(TM), fibrinolytic system changes and the score of the model for end-stage liver disease(MELD)in liver cirrhosis patients.Methods Eighty-five liver cirrhosis patients admitted from January 2008 to December 2009 were included in this study. TM, D-dimer, tissue plasminogen activator(t-PA), plasminogen activator inhibitor -1(PAI-1),serum creatinine, serum total bilirubin and international normalized ratio(INR)on all patients were measured and then the score of the MELD was calculated. Results The score of the MELD was 1-29(11.35 ± 6.02)scores. The score of the MELD ≤ 9 scores was 40 cases(47.1%), 10- 19 scores was 32 cases (37.6%),20-29 scores was 13 cases(15.3%).TM and D-dimer were progressively increased with MELD score. There was significant difference among the three groups(P＜0.01). The levels of TM and D-dimer had positive correlation with the score of the MELD(r = 0.706,0.425,P ＜ 0.01). Conclusions The levels of TM and D-dimer have positive correlation with the score of the MELD in liver cirrhosis patients. These indices can help predicting the degree of liver function disorder and prognosis.

Objective To investigate the relationship of thyroid hormone (TH), thyroid stimulating hormone (TSH) and blood calcium in hyperlipidemic acute pancreatitis (HLAP) patients. Methods Fifty patients with HLAP were selected, among whom 37 patients with mild acute pancreatitis (MAP) were enrolled into MAP group, and 13 patients with moderately severe acute pancreatitis (MSAP) were enrolled into MSAP group. The albumin, blood glucose, creatinine, blood lipids, blood calcium, free tri-iodothyronine (FT3), free thyroxine (FT4) and TSH levels were measured and analyzed. Results The blood calcium, FT3 and TSH levels in MAP group were significantly higher than those in MSAP group:(2.02 ± 0.26) mmol/L vs. (1.75 ± 0.27) mmol/L, (1.88 ± 0.46) ng/L vs. (1.52 ± 0.35) ng/L and (0.28 ± 0.20) mU/L vs. (0.17 ± 0.12) mU/L, but the blood glucose and triglycerides (TG) levels were significantly lower than those in MSAP group: (13.36 ± 5.83) mmol/L vs. (19.99 ± 7.97) mmol/L and (24.01±12.46) mmol/L vs. (34.76 ± 20.39) mmol/L, and there were statistical differences (P<0.01 or<0.05). There were no statistical differences in albumin, creatinine, total cholesterol, high density lipoprotein cholesterol, low density lipoprotein cholesterol (LDL-C) and FT4 levels between 2 groups (P>0.05). The correlation analysis result showed: in patients with HLAP, TSH and albumin had a positive correlation with blood calcium (r=0.344 and 0.372, P=0.014 and 0.008), LDL-C and TG had negative correlation with blood calcium (r=-0.315 and-0.444, P=0.026 and 0.001), and other indexes had no correlation with blood calcium (P>0.05). Conclusions Blood calcium, FT3 and TSH levels are decreased with severity of HLAP. Decreased blood calcium may be one of reasons for decreased TSH in HLAP patients.

Objective To study the relationship between fibrinolysis,anticoagulation system indexes and serum albumin (ALB) in patients with liver cirrhosis.Methods One hundred and thirty-seven patients with liver cirrhosis were enrolled.Serum ALB,D-dimer (D-D),tissue plasminogen activator (t-PA),plasminogen activator inhibitor-1 (PAI-1),protein C (PC),protein S (PS) and antithrombin-Ⅲ (AT-Ⅲ) levels were measured.Results D-D level was increased with deterioration of liver function.D-D levels were (0.38 ± 0.24),(0.58 ± 0.43) and (0.90 ± 0.55) mg/L in Child-Pugh class A,B and C,respectively.PC,PS and AT-Ⅲ levels were decreased with deterioration of liver function.PC levels were (3.29 ± 1.04),(2.50 ± 1.27) and (2.29 ± 1.05)mg/L in Child-Pugh class A,B and C,respectively.PS levels were (20.74 ± 5.91),(17.97 ± 5.26) and (17.79 ± 5.12) mg/L,respectively.AT-Ⅲ levels were (104.62 ± 8.59)％,(101.76 ± 10.08)％ and (92.91 ± 10.48)％,respectively.D-D showed negative correlation with ALB (r =-0.402,P ＜ 0.01).On the contrary,PC,PS and AT-Ⅲ levels showed positive correlation with ALB (r =0.266,0.286 and 0.405,P ＜0.01).Conclusions Fibrinolysis and anticoagulation system indexes are changed with deterioration of liver function and are related with ALB directly.The indexes may be a helpful tool to evaluate the liver function in patients with liver cirrhosis.

Objective To investigate the correlation and differences of serum calcium ( Ca) and intact parathyroid hormone ( i-PTH) in patients with hyperlipidemic or biliogenic acute pancreatitis ( AP) .Methods From Jan 2012 to Jan 2014 , total 80 AP patients admitted to Bejing Chaoyang Hospital were enrolled . According to the etiology , AP patients were divided into 2 groups, hyperlipidemic acute pancreatitis ( HLAP) group and biliogenic acute pancreatitis (BAP) group.Blood routine, function of liver and kidney , blood lipids, Ca, and i-PTH were measured .Differences between Ca and i-PTH in HLAP group and BAP group were analyzed, and found the correlation with disease severity of AP .Results 80 AP patients included 43 HLAP and 37 BAP patients, 55 mild acute pancreatitis(MAP) and 25 moderately severe acute pancreatitis (MSAP) patients.HLAP group had 34 male and 9 female patients, average age was 37 years, 31 MAP and 12 MSAP patients.BAP group had 17 male and 20 female patients, average age was 58 years, 24 MAP and 13 MSAP patients.proportion of males was significantly higher in HLAP group than BAP group .on the contrary, average age was significantly lower (P<0.01 and <0.01, respectively).No significantly difference was found in MAP/MSAP ration.Level of serum Ca in HLAP group was significantly decreased than BAP group (1.92 ± 0.24 mmol/L vs 2.14 ±1.99 mmol/L, P<0.05).No significantly difference was found in i-PTH between two groups.Level of serum Ca in MAP and MSAP subgroup in HLAP group were 1.98 ±0.20 mmol/L and 1.76 ± 0.27 mmol/L.Accordingly, Level of serum Ca were 2.23 ±0.15 mmol/L and 1.98 ±0.19 mmol/L in BAP group. i-PTH in MAP and MSAP subgroup in HLAP group were 43.41 ±18.40 ng/L and 56.07 ±33.61 ng/L.Accordingly, i-PTH was 39.22 ±17.19 mmol/L and 52.73 ±29.42 mmol/L in BAP group.Compared to MAP, Ca in MSAP group was significantly decreased in HLAP and BAP group ( P<0.01 and <00.5, respectively).In HLAP group, Ca was a negative correlation with low density lipoprotein cholesterol (LDLC-) and triglycerides(TG) (P<0.05 and <0.01, respectively).In BAP group, Ca was a negative correlation with i-PTH(P<0.05).Conclusions Serum Ca is decreased with severity of HLAP and BAP .Decreased Ca has correlation with increased LDL-C, TG in HLAP and increased i-PTH in BAP.

Objective To investigate the changes of C-reactive protein(CRP)and D-dimer in the patients with hyperlipidemic acute pancreatitis(HLAP)and biliogenic acute pancreatitis(BAP).Methods One hundred fifty-five inpatients with acute pancreati-tis in our hospital from Jan.2012 to Dec.2014 were divided into the HLAP group and BAP group by etiology.Also the patients were divided into mild acute pancreatitis(MAP)subgroup and moderately severe acute pancreatitis(MSAP)subgroup by disease se-verity.Blood routine,liver and kidney function,glucose(Glu),calcium,blood lipids,CRP and D-dimer were measured.Results Platelet,Glu and blood lipid indicators in the HLAP group were significantly higher than those in the BAP group.But alanine amin-otransferase(ALT),r-glutamyl transferase(GGT),alkaline phosphatase(ALP),total bilirubin(TBIL),direct bilirubin(DBIL),calci-um(Ca)and creatinine(Cr)in the HLAP group were significantly lower than those in the BAP group(P <0.05).CRP in the HLAP group was significantly higher than that in the BAP group with statistical difference(P <0.01).CRP had statistical difference be-tween the HLAP group and BAP group in the MAP and MSAP subgroups (P <0.01).CRP and D-dimer had statistical difference between in the MAP and MSAP subgroups of the HLAP group(P <0.05).Increased CRP and D-dimer in the HLAP group were the risk factors for MSAP occurrence(OR =1.121,3.716,P =0.025,0.001 ).In the BAP group,only increased D-dimer was the risk factor for MSAP occurrence(OR=2.717,P =0.002).Conclusion CRP and D-dimer in HLAP and BAP are increased with dis-ease severity aggravation,moreover CRP increase is more obvious in HLAP patients.