Objective To explore the characteristics of approach and avoidance behaviors among subthreshold depressed adolescents. Methods 27 subthreshold depressed adolescents and 29 healthy con?trol teenagers completed the approach?avoidance task,and the reaction time at approach and avoidance task of the two groups was compared. At the same time,their differences were analyzed between the two groups on the Behavioral Inhibition/Activation System Scale scores. Results ( 1 ) Subthreshold depression group (1208.18±338.92)ms) had significantly longer reaction time than those in healthy control group((1058.40 ±204.22)ms) when approaching happy expression ( t=2.02, P<0.05). (2) Subthreshold depression group (37.33±4.46) had significantly lower behavioral activation system scale scores than those in healthy control group ((39.76±3.75), t=-2.21, P<0.05); and the score of reward responsiveness was marginally signifi?cant lower in subthreshold depression group (12.63±1.67) than that in healthy control group ((13.41± 1.30), t=-1.97, P=0.054). Conclusion To activate the approach behaviors of subthreshold depression adolescents may be helpful for reducing the symptoms of depression.

According to the registered product standards specification of medical devices, combined with the standard reviewing work, the common problems of standards during medical devices registration were analyzed and corresponding suggestions were proposed to standardize the standard of the registered product, accelerate the standardization and promote the industry standardized.
Device Approval ; Equipment and Supplies ; standards

A type of data acquisition system of Laplacian ECG based on USB is introduced in this paper. The principle of hardware and method of software designing are explained. This system not only possesses very high CMRR, but also realizes the collection and transmission of Laplacian ECG signals in real time. This system is valuable in practice.

Objective To investigate the life quality (QoL) of end stage renal disease patients. Methods KDQOL-SFTM1.2 scale was used to assess the life quality of end-stage renal disease patients who received maintenance hemodialysis or Newly diagnosed but not yet received renal replacement therapy more than three months in the First Affiliated Hospital of Kunming Medical University or the Yunnan Kidney Disease Hospital from March 2011 to July 2012. Results (1) The QoL of maintenance hemodialysis group was significantly higher than not yet started renal replacement therapy group in the Physical functioning (PF),Role physical (RP),Body pain (BP) fields, the difference was statistically significant ( <0.05) . (2) The QoL of maintenance hemodialysis group was significantly higher than not yet started renal replacement therapy group in the Symptom/problem list (SPL), Sleep fields,but lower than not yet started renal replacement therapy group in the Effects of Kidney disease (EKD), Work status (WS) fields,the difference was statistically significant (<0.05) . Conclusion The life quality of maintenance hemodialysis patients is higher than newly diagnosed but not yet started renal replacement therapy patients in some aspects.

Objective To explore the value of serum procalcitonin (PCT) for early evaluation of the severity in bacterial infection, and compare it with C-reactive protein(CRP), white blood cell(WBC) and temperature to understand their strengths and weaknesses. Methods A sample of 139 impatients with bacterial infection from July 2009 to June 2010 in our hospital were divided into four groups, including local bacterial infection group(Group A, n = 50), sepsis group(Group B, n = 51), severe sepsis group(Group C, n = 21) and septic shock group (Group D, n = 17) according to ACCP/SCCM consensus conference and the clinical manifestation. Twenty noninfectious patients during the same time were recruited as control(Group E, n = 20)PCT, CRP,WBC and temperature were evaluated in all patients before treatment and PCT were measured 5 days after treatment. Results During the early period of the bacterial infection, PCT was highest in Group D ([42.36±48.49] × 10-6 g/L),which was higher than that of (4.66 ±2.46) × 10-6 g/L in Group C,( 1.08 ± 0. 68) × 10 -6 g/L in Group B and (0. 09 ± 0. 05) × 10 -6 g/L in Group A(Ps ＜ 0. 05), PCT in the four infectious groups were all higher than the control group([0. 05 ± 0. 01 ] × 10-6 g/L)(Ps ＜ 0. 05). No significant difference in CRP between Group D and Group C, neither did between Group C and Group B (Ps ＞0. 05). No significant difference was found in WBC between Group D and Group C,neither did between Group D and Group B (Ps ＞ 0. 05). Temperature in Group D was not significantly different to Group C(P ＞ 0. 05). After 5 days' treatment, PCT decreased in the four infectious groups than before. Conclusion The level of PCT can be used to evaluate the severity of infection during the early period of bacterial infection, which is better than CRP,WBC and temperature. PCT decreases after effective treatment,which can help monitor the patients' condition.

OBJECTIVE:To optimize ultrasonic-assisted extraction technology of total flavonoids from Vaccinium uliginosum. METHODS:Based on single factor test,the ultrasonic-assisted extraction technology of total flavonoids from V. uliginosum was op-timized by orthogonal test,using the yield of total flavonoids as index,with ethanol volume fraction,solid-liquid ratio and ultrason-ic power as factors. The optimized technology was validated and compared with traditional ethanol reflux method(reflux extracting for 2 times,2 h each time). RESULTS:The optimal extraction technology was as follows as the solid-liquid ration of 1:25,70%ethanol,ultrasonic power of 250 W(40 min for ultrasonic time). In validation test,the yield of total flavonoids from V. uliginosum was 3.98%(RSD=0.41%,n=3),and the yield of total flavonoids was 2.25% by ethanol reflux method. CONCLUSIONS:The ultrasonic-assisted extraction is obviously superior to ethanol reflux method on extraction time and effects,and it is suitable for in-dustrialized production.

6 were higher than O_2/kg. Conclusion Comparing with single index of pulmonary function, the cardiopulmonary scores can more comprehensively evaluate the thoractomy candidates, for patients receiving pneumonectomy or the patients receiving lobectomy whose FEV_ 1.0 was lower than 60%.

Eight-year medical program is a new style of medical education and a necessary trend of economic rapid development.In China,the clinical skill training system for eight-year medical students is exploring.Early contact with clinical practice,application simulation medicine and holding reading lecture were used for eight-year medical students of grade 2004 in pediatric clinical clerkship and were confirmed to have better effect.

Cerebral Veins ; Female ; Humans ; Middle Aged ; Prosthesis Implantation ; Stents ; Tinnitus ; etiology ; surgery

Objective Class 1 integrase(intI 1),qacE△1-sul1 and sul2 genes were detected in trimethoprim-sulfamethoxazole resistant Stenotrophomonas maltophilia by PCR to assess the relationship between the antibiotic resistance mechanism for trimethoprim-sulfamethoxazole (TMP-SMZ)and these genes distribution.Methods S.maltophilia isolates were collected from patients treated in Affilitated hospital of Nanjing University of TCM during January to May in 2013,DNA was ab-stracted by boiling method and genes were detected by polymerase chain reaction.Results intI 1 genes were observed posi-tive in 25 of 28 strains resistant for TMP-SMZ,qacE△1-sul1 genes were positive in 21 while sul2 genes positive in 15,the positive rates of intI 1,qacE△1-sul1 and sul2 genes were 89.29%,75% and 53.57%;in 18 trimethoprim-sulfamethoxazole sensitive strains,5 were intI 1 positive,4 were qacE△1-sul1 positive while sul2 were none,the positive rates of intI1 and qacE△1-sul1 were 27.78% and 22.22%.Conclusion Most of stenotrophomonas maltophilia resisted trimethoprim-sulfa-methoxazole had intI 1,qacEΔ1-sul 1 and sul2 genes.