Objective To compare the efficacy of domestic low-dose versus conventional-dose clopidogrel for patients with unstable angina pectoris (UAP). Methods A total of 206 UAP patients were randomly assigned to low-dose clopidogrel (50 mg/day) as treatment group and conventional-dose clopidogrel (75 mg/day) as control group. Treatment continued for 12 months to observe the extent of alleviating angina and major adverse cardiac events (MACE). Results The numbers of markedly effective, effective, ineffective and worse patients were 56(52.8%), 22 (20.8%), 11(10.4%) and 17(16.0%) in treatment group, and those were 52(51.0%), 20 (19.6%), 12(11.8%) and 18(17.7%) in control group (all P>0. 05). There was death in 3 cases, non-fatal myocardial infarction in 2 cases in treatment group, and death in 4 cases, non-fatal myocardial infarction in 2 cases in control group (χ~2 =0. 620, P>0. 05). Low-dose group had a lower incidence of adverse reactions. Conclusions The efficacy of low-dose clopidogrel for patients with UAP is not inferior to conventional-dose, and the safety is well.

Previous studies have agreed that the levels of neuron-specific enolase (NSE)and S100B protein have an important value for the severity of cerebral infarction and prognosis estimation. This article reviews the relationship between the serological changes of NSE and S100B and cerebral infarction, infarct volume, severity of neurological deficits, infarct location,and prognosis, as well as the advances in research on the evaluation of therapeutic drugs.

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Objective To analyze the changes in nutritional status changes of pediatric acute lymphoblastic leukemia (ALL) patients before and after chemotherapy and to evaluate the effects of enteral nutritional support on the states of nutrition and complication of chemotherapy.Methods Sixty-two newly diagnosed ALL patients from Novem-ber 2012 to December 2013 in Center of Hematology,Beijing Children's Hospital Affiliated to Capital Medical University were enrolled in this study.Patients were randomly assigned into an intervention group and a control group.During the induction and the early consolidation chemotherapy,the control group was given routine low fat diet routinely,and the intervention group was given Nestle peptamen [20 mL/(kg · d)] as the enteral nutritional support,meanwhile the routine low fat diet was also given.Changes in the nutritional status before and after chemotherapy and effectiveness of nutritional complementary therapy for preventing the chemotherapy complications were analyzed.Results (1) Basic information:there was no significant difference in age,gender,risk group,anthropometry,albumin and pre-albumin level between 2 groups before chemotherapy.(2)Nutritional status:the rate of malnutrition was 11.3 ％,and skinniness cases under 5 years of age occupied 10.0％.In the control group,the Z scores of W/H (weight-for-length/height,t =3.160,P =0.040),the Z scores of BMI (body mass index,t =3.490,P =0.010) and the albumin level(t =-1.805,P ＜0.001) decreased after chemotherapy,and the difference was statistically significant.On the other hand,the Z scores of W/H and BMI kept stable after chemotherapy in the intervention group,the albumin level raised from (40.53 ±3.96) g/L to (44.36 ± 3.31) g/L (t =-4.500,P ＜ 0.001) and the pre-albumin level raised from (126.55 ± 39.28) g/L to (189.55 ± 51.81) g/L(t =2.710,P =0.010),which was of statistical difference.The albumin level(t =5.020,P ＜ 0.001),pre-albumin level (t =3.036,P =0.040) and the Z scores of W/H (t =2.790,P =0.010),BMI (t =3.370,P ＜ 0.001),weight for age (W/A,t =2.830,P =0.010) were all higher in the intervention group,and the differences in statistical significance were found.(3)Side effects of chemotherapy:patients in the intervention group had higher hemoglobin (t =2.070,P =0.043) and platelet (Z =-2.19,P =0.033) level during the chemotherapy which induce less platelet [(0.50 ± 1.00) U vs (2.00 ± 2.00) U ; Z =-3.53,P =0.003] and red blood cells [(3.87 ± 2.01) U vs (5.25 ± 1.87) U ;t =-2.810,P =0.007] transfusion.Period of neutrophil deficiency [(15.67 ± 8.85)d vs (25.94 ±8.72) d;t =-4.601,P ＜0.001]was also shorter than that in the control group.Other complications had no difference between two groups exclude mild liver function abnormality was found more in the controls(x2 =6.680,P =0.010).(4)Safety:the complete remission rate 15 days after chemotherapy was 83.3％ in the intervention group and 81.2％ in the control group (x2 =0.046,P =0.830).All patients got complete remission on day 33.There was no significant difference.No pancreatitis happened in both groups during the chemotherapy.Conclusions Malnutrition rate is high among newly diagnosed ALL pediatric patients,and the nutritional status will deteriorate during the chemotherapy.Enteral nutritional support contributes to maintaining the stability of nutritional status.Enteral nutritional support improves the tolerance of hematopoietic system to chemotherapy.The effect for other complications remains to be confirmed by more extensive study in future.Nestle peptamenas enteral nutritional support productions are safe for ALL patients undergoing chemotherapy.

The papers on domestic and foreign health information management covered in CNKI and Web of Science from 2011 to 2016 were retrieved.The hotspots and trends in its researches were identified by visual analysis, which showed that they were consistent in hospital information system, information technology and electronic medical records, the whole development level was higher and the involved range was wider and deeper in foreign researches on health information management than in domestic researches on health information management, the connotation of subjects due historical reasons and the key points in foreign researches on health information management were different from those in domestic researches on health information management.

Objective The aim of this study was to observe the growth difference and expression of cytochrome C of skin hair follicles in neonatal mice .Methods The morphology of different skin hair follicles of neonatal mice ( postnatal day 1-9)were observed by HE staining histology and cytochrome C was detected by immunohistochemistry .Results The skin hair follicles in different parts of neonatal mice showed differences not only in morphology but also in developmental pe -riods.Hair follicle growth in the back and tail skin had a nonlinear and growing period .After the nonlinear and growing pe-riod they began to grow rapidly .The tail development was slightly slower than that on the back .The hair follicles of vibris-sae were very special , and started to develop without a stable period .Conclusions The results of morphological observa-tion and cytochrome C immunohistochemistry demonstrate that differences exist in the hair follicle morphology and develop -mental times in the skin of different parts of the body in neonatal mice .

Objective To establish a way to measure the injury severity of articular surface due to posterior malleolus fracture and investigate its clinical significance based on three-dimensional reconstruction technique.Methods Between May 2009 and March 2014,138 cases of peri-ankle injury combined with posterior malleolus fracture were treated.Lateral radiographs were reviewed to measure the ratio of posterior fragment area to distal tibial plafond area using the common method.Three-dimensional CT images were examined to measure ratio of the area of injury using the three-dimensional measuring method.Statistical comparison was made using the t-test and intraclass correlation coefficient (ICC).Results Measurement failed on 33 lateral radiographs and 13 three-dimensional CT images.Six cases cannot be measured by both imaging technology,so results of 98 cases were compared.Ratio of posterior fragment area to tibial plafond area was (16.2 ± 7.2) ％ measured by radiographs and was (29.6 ±10.1) ％ by three-dimensional CT scans (P ＜ 0.05).Three-dimensional CT measurements showed higher intra and inter-observer agreement (ICC of 0.973 to 0.942) than that in radiographic measurements (ICC of 0.875 to 0.860).Conclusion Three-dimension CT assessment of the extent of injury to articular surface because of posterior malleolus fracture is reliable and reproducible,but radiographic assessment may underestimate the injury and influence the choice of surgical indications.

Gas chromatography with mass spectrum detector ( GC-MSD) coupled with purge-and-trap system was set up to analyze the concentration of isoprene in natural waters. The best experimental conditions were established, including purge gas flow rate ( 50 mL/min ) , purge time ( 15 min ) , the optimum capillary column ( Rt-Alumina BOND/KCl) and the appropriate condition of temperature programming. When analyzing isoprene in natural waters, the precision was <4% (n=6), the detection limit was 0. 5 pmol/L and the recovery was 91%-102%. The preservative experiment showed that there was no obvious variation in sample concentrations of isoprene within 60 days. The concentrations of isoprene measured with the method ranged from 60 . 8 to 278 . 7 pmol/L in the Jiaozhou Bay and its adjacent river estuaries and from 44 . 7 to 77 . 2 pmol/L in Yellow River estuary, which was in good accord with those results reported in literatures in other coastal waters. In conclusion, the analytical method could meet the requirements of the analysis of concentration of isoprene in natural waters.

Objective To investigate the bactericidal mechanism of electrolyzed oxidizing water (EOW) against Pseudomona aeruginosa (P.aeruginosa).Methods Bactericidal mechanism of EOW against P.aeruginosa was studied through intracellular protein leakage,nucleic acid,and cell membrane calcium ion permeability,2 ％ glutaraldehyde was used as positive control group,and normal saline (NS) was used as negative control group.Results The killing rates of EOW and 2％ glutaraldehyde to P.aeruginosa were both＞99.99％ with 30-second contact time,and 100.00％ with 60-second contact time.After 60-second contact with EOW,NS,and 2％ glutaraldehyde,the protein leakage of P.aeruginosa detected by bicinchoninic acid (BCA) were (96.00 ± 7.42),(94.15 ± 7.49),and (216.97 ± 10.35)μg/mL,respectively,difference was significant(F =613.20,P＜0.01),2％ glutaraldehyde group was higher than EOW group and NS group;protein leakage did not change with the increase of contact time(all P＞0.05).Electrophoretogram of random amplified polymorphic DNA showed high intensity dense band between 500-1000 Kb in EOW group and NS group,while 2％ glutaraldehyde group was without amplified bands.The fluorescence intensity of calcium ion of EOW group and 2％ glutaraldehyde group were both lower than that of NS group.Conclusion Bactericidal mechanism of EOW may be due to the damage of membrane permeability of P.aeruginosa,which causes Ca2+ leakage,but fails to cause protein leakage,the damage to nucleic acid is not obvious,DNA may not be a bactericidal target of EOW.

Objective To investigate the inttuenee of elevated fasting blood glucose(FBG)on left ventrieular ejection fraction(LVEF)after acute myocardial infarction(AMI).Methods The relationship between FBG(≥8-hour fast within 24 hours of admission)and LVEF in 161 patients with AMI was studied prospectively.Patients were grouped by FBG (group 1,FBG＜6.1 mmol/L,group 2,FBG 6.1-6.9mmol/L,group 3.FBG≥7.0mmol/L).LVEF was measured at admission and at 30 days after AMI onset Results Compared with that of normal FBG(group 1),LYEF of elevated FBG(group 2 and group 3)was lower[for admission:(49.3±6.7)%,(45.8±7.4)% vs (52.4±7.7)%,P＜0.05;for 30day8:(52.7±7.3)%,(49.2±7.2)% vs (55.8±7.4)%.P＜0.05].ConclusionElevated FBG is associated with worse LVEF after AMI.