Objective To investigate the correlation between plasma von Willebrand factor(vWF) and the extent of coronary artery lesion in acute coronary syndrome (ACS).Methods One hundred and forty eight ACS patients (ACS group) who performed coronary angiography (CAG) were divided into single stenosis group (54 patients),double stenosis group (51 patients) and multitude stenosis group (43 patients) by the number of stenosis through CAG.They were divided into mild group (Gensini score ≤ 20 points,31 patients),midrange group (Gensini score 21-40 points,47 patients) and severe group (Gensini score ≥ 41 points,70 patients).Fifty patients with stable angina pectoris (SA) were randomly selected and classified as SA group,while 50 patients with healthy coronary were randomly selected as control group.Blood sample of 248 patients were collected to detect the level of vWF,and blood routine examination,blood clotting function,liver and renal function,high sensitivity C-reactive protein (hs-CRP),blood glucose,blood fat were detected.The correlation between vWF and the extent of coronary artery lesion were analyzed.Results The level of white blood cell count (WBC) and hs-CRP in ACS group were significantly higher than those in SA group and control group (P ＜ 0.05).But the level of WBC and hs-CRP between SA group and control group had no significant difference (P ＞ 0.05).The level of blood platelet count,prothrombin time,partial prothrombin time,fasting blood glucose,thrombin time,2 h postprandial glucose,triglyceride,total cholesterol had no significant difference among three groups (P ＞ 0.05).The level of vWF in ACS group was significantly higher than that in SA group and control group [(143.25 ± 20.42)％ vs.(102.77 ± 11.84)％,(97.63 ± 10.31)％] (P ＜0.05).The level of vWF in single stenosis group,double stenosis group and multitude stenosis group was (127.34 ± 9.35)％,(144.81 ± 12.02)％,(159.55 ± 18.62)％,and significantly higher than that in control group (P ＜ 0.01).The level of vWF in mild group,midrange group and severe group was (124.77 ± 14.31)％,(132.53 ± 16.38)％,(155.06 ± 18.53)％,and significantly higher than that in control group (P ＜ 0.01).The level of vWF had significantly positive correlation with the number of stenosis and Gensini score (r =0.698,0.683,P ＜ 0.01).Conclusion The level of vWF in peripheral blood is closely related with the severity of ACS and has important clinical significance in evaluating the condition and guiding therapy in patients with ACS.

Objective To investigate the clinical significance of γ-interferon release test (IGRA) in the diagnosis of entry-exit people with tuberculosis.Methods A total of 64 patients with tuberculosis and 46 healthy people were detected by IGRA,tuberculin skin test (TST),LAM,38× 103 and 16 × 103.The results of different methods were compared and analyzed.Results The sensitivity of IGRA detection method (88.9 ％) and specificity (95.8 ％) were both higher,while the sensitivity (92.7 ％) of the TST method was higher and the specificity (76.7 ％) was lower.Conclusion The sensitivity and specificity of IGRA in the detection of tuberculosis are higher,and it has important clinical application value.

Retrospective analysis was conducted for the results of first-aid competitions so as to understand the present status of how emergency doctors of Hubei Province grasp the skills and consciousnesses of cervical immobilization.From 6 out of 19 teams,38 participating doctors from grade 3A hospitals provided patient cervical immobilization while 2 teams offered no cervical protection.It is necessary to intensify the skills and consciousnesses of cervical immobilization in clinical practice.

Objective To study the value of clinical application of leukocyte classification alarm system (Q‐Flag ) for Sysmex XT‐1800i blood cell analyzer .Methods 394 blood samples with alarm system (Q‐Flag) and 190 ones without abnormal alarm infor‐mation detected by the Sysmex XT‐1800i blood cell analyzer were performed to observe the quantity and morphology of blood cells by manual differentiation ,and the results were compared between them .Results The alarm system of Sysmex XT‐1800i blood cell analyzer in detecting cell morphologic abnormalities was 100 .0% for sensitivity ,62 .3% for specificity ,70 .8% for positive predic‐tive value and 100 .0% for negative predictive value .Based on thegold standardof manual differentiation ,no abnormal cells were observed in those blood samples without Q‐Flag alarm information and the coincidence rate was 100% .The coincidence rate of leu‐kocyte classification was from 0 .0% to 75 .0% for blood cell analyzer when the alarm system (Q‐Flag) was between 100U and 200U ,and that was from 66 .7% to 95 .6% when the alarm system (Q‐Flag) was between 200U and 300U .Conclusion The alarm system sensitivity of leukocyte classification alarm system (Q‐Flag) is high for Sysmex XT‐1800i blood cell analyzer ,and it is nec‐essary to manually differentiate the samples with abnormal Q‐Flag in order to provide accurate and reliable clinical diagnostic infor‐mation .

Objective: To investigate the efficacy and safety of oxycodone hydrochloride prolonged-release tablets and tramadol hydrochloride sustained-release tablets in the treatment of moderate cancer pain. Methods:Totally 290 cases of the patients with mod-erate pain were divided into the observation group with 148 cases and the control group with 142 cases. The observation group received oxycodone hydrochloride prolonged-release tablets, while the control group was given tramadol hydrochloride sustained-release tablets. The treatment course was 2 weeks, and the total efficiency and the incidence of adverse drug reactions( ADR) in the two groups were calculated and compared. Results:The total efficiency in the observation group and the control group was 92. 6% and 81. 7%, respec-tively, and the difference was statistically significant (P<0. 01). The incidence of ADR was 60. 1% and 57%, respectively with no significant difference (P>0.05). Conclusion: The effect of oxycodone hydrochloride prolonged-release tablets in the treatment of moderate cancer pain is better than that of tramadol hydrochloride sustained-release tablets.

Objective To investigate the expression and clinical significance of survivin and PTEN in bladder transitional cell carcinoma(TCC).Methods The expression of survivin and PTEN was studied by S-P immunohistochemisty in 10 cases of normal urinary bladder tissues and 62 cases of the bladder TCC. Results All the normal urinary bladder tissues showed positive staining pattern of PTEN protein, negative staining pattern of survivin protein, positive rate of PTEN in 62 cases of the bladder TCC is 46.8%,the difference of positive rate between grade Ⅰ and grade Ⅲ was significant(P＜0.05),the difference of positive rate between Tis～T_1 and T_2～T_4 showed a trend of decreasing, but there was no statistically significant difference(P＞0.05);positive rate of survivin in 62 cases of the bladder TCC is 56.5%,the difference of positive rate between grade Ⅰ and grade Ⅲ was significant(P＜0.05),the difference of positive rate between Tis～T_1 and T_2～T_4 was significant too(P＜0.05).The expression of PTEN protein and survivin protein was reversely correlated(P＜0.05).Conclusion The abnormal expression of PTEN protein and survivin protein play an important role in the occurrence and progress of the bladder TCC.It can be regarded as a useful diagnostic marker in the bladder TCC.

Objective To explore the efficacy of proximal femur locking plate(PFLP) for the treatment of unstable femoral intertrochanteric fractures in elderly patients.Methods Data of 120 cases of patients with unstable femoral intertrochanteric fractures who were treated by PFLP were retrospectively analyzed.There were 56 males and 64 were females,aging from 62 to 78 year-old (average,69.4 year-old).85 cases were left hip,and 35 cases right hip.According to AO fracture classification,there were 12 cases of A2.2,23 A2.3,34 A3.1,29 A3.2,and 22 A3.3.According to Evans intertrochanteric fractures classification:there were 93 cases of type Ⅲ,19 type Ⅳ,and 8 type Ⅴ.Operation time,length of hospital stay,fracture healing time,postoperative complications and hip joint Harris scores were recorded.Results All patients were followed up for 8-14 months (average,12.4 months).Their operating time were 51-80 min (average,63.1 min);X-ray exposure were 8-15 times (average,11.6 times);intraoperative blood loss were 70-120 ml (average,92.7 ml);postoperative drainage volume were 50-100 ml (average,61.7 ml),and length of hospital stay were 7-14 d (average,10.2 days).The healing time ranged from 12 to 32 weeks (20.4 weeks average).14 cases had delayed union,and healing time was 8-10 months.In addition,4 cases had deep vein thrombosis (after thrombolysis therapy the vein was recanalized);2 had internal fixation broken,who were then treated with PFNA Ⅱ,and bone healed after 6 months;5 had hip varus,who were then treated via hip replacement,and no hip prosthesis fracture were found.No other complications occurred in the remaining patients.At the latest follow-up,according to Harris hip score:there were 38 cases with excellent results,71 good,9 fair,and 2 poor,and the rate of excellent and good was 90.8％ (109/120).Conclusion PFLP for the treatment of unstable femoral intertrochanteric fractures has advantages of less invasion,less complication,reliable fixation and high fracture healing rate,thus it is suitable for unstable intertrochanteric fractures in elderly patients.

Interferon stimulated gene 15 kDa protein (ISG15) is the first ubiquitin-like protein identified, which plays vital roles in a variety of fields including viral infection and immunological regulation. In this study, liquid chromatography-tandem mass spectrometry was used to analyze ISG15-modified proteins in A549 cells in response to infection by influenza virus, which was enriched by immunoprecipitation. A total of 22 cellular host proteins were identified in A549 cells infected by influenza virus, including ubiquitin-like ISG15 protein, cyclin-T1, heat shock protein 71 kDa, caldesmon, eukaryotic translation initiation factor, and so on. Besides, non-structural protein (NS1) from influenza virus was also identified. Among the 22 host proteins identified, 6 proteins were also identified in the control non-infected A549 cells, including annexin A1, fructose-bisphosphate aldolase A, ATP synthase subunit g, enolase, actin, and tubulin. Bioinformatics analysis revealed that the identified ISG15-modified host proteins induced by influenza virus infection could be classified into 9 protein classes: chaperone, oxidoreductase, enzyme modulator, transferase, nucleic acid binding, transcription factor, kinase, cytoskeletal protein, and structural protein. This study provided a specific and effective tool for analyzing ISG15-modified proteins in proteome level.

Objective To investigate the variations of glomerular function in rabbits with partial unilateral ureteral obstruction (PUUO). Methods Thirty healty adult Japanese White Rabbits were randomly divided into the control group (6 rabbits) and the obstruction group (24 rabbits). The right PUUO model was established according to Cheng′s method. According to the PUUO duration, they were eaqually divided into four subgroups:the 7 day PUUO group, the 14 d PUUO group, the 28 d PUUO group and the 56 d PUUO group. The dynamic renal imaging was performed on all rabbits, and the glomerular filtration rate (GFR) was also calculated. The correlation between the renal function and PUUO duration was analyzed , and functional variations in the healthy kidneys were observed. Results (1)To the control group, no significant difference in the renal function was found between the left and the right kidneys (t = -0.145, P = 0.894). However, to the PUUO group, the right renal GFRs were significantly lower than the left renal GFRs (P < 0.05). (2) To the right renal GFR, significant difference was observed between the 7 day PUUO group and the control group (t = 5.066, P = 0.001),but not among the 7 day PUUO group, the 14 day PUUO group, the 28 day and the 56 day PUUO group (P > 0.05), (3)No significant differences were found in the left renal GFRs among the five groups. Conclusions The function of PUUO kidneys is characterized by an obvious decrease in the early stage, followed with a steady state. The basic function of the opposite healthy kidney does not present the compensation phenomenon.

Abstract Formaldehyde has been widely employed to immobilize clinical tissue specimens, inactivate toxins and viruses in biomedical fields. Formaldehyde can react with active groups in bio-molecules such as proteins, resulting in protein cross-linking, inactivation, and immobilization. By using several standard peptides and tryptic peptides from matrix protein of influenza virus as experimental models, we studied the chemical modifications of peptides and proteins with formaldehyde by matrix-assisted laser desorption ionization time-of-flight mass spectrometry and nano-electrospray quadruple time-of-flight tandem mass spectrometry. The reaction between formaldehyde and peptides was performed under the same conditions as those during inactivation of virus (4℃, 0. 025% Formalin (V/V), 37% formaldehyde solution (w/w), and 72 h). The results indicated that under above conditions, formaldehyde could react with amino group of N-terminus of standard peptide to generate a methylol adduct, which was further condensed into an imine to generate+12 Da product. Besides, formaldehyde could react with side chain of two amino acids such as arginine and lysine, yielding +12 Da product respectively. The analysis of the reaction between formaldehyde and tryptic peptides from matrix protein of influenza virus showed that +24 Da products could be detected in most peptides due to combinational contribution from N-terminus of peptide (+12 Da ) and side chain of C-terminal arginine or lysine (+12 Da) . Moreover, a +36 Da product was detected for a peptide with miss-cut site. The results indicated that low-concentration formaldehyde primarily reacted with amino group on N-termini of peptides and proteins, as well as the side chains of arginine and lysine residues. The present study suggested an effective mass spectrometry-based method for analyzing the reaction between low-concentration formaldehyde and peptides and proteins, thus provided strategies for interpretation for the mass spectra of reaction products.