The dynamic changes of germination percentage, germination potential, thousand-seed weight, antioxidase activity in Desmodium styracifolium seeds with different storage time were tested, and electrical conductivity, contents of soluble sugar, soluble protein, starch in seed leach liquor were also determined in order to reveal the mechanism of seed deterioration. The results as the following. (1) The germination percentage, germination potential and thousand-seed weight of D. styracifolium seeds declined, while the seed coat color darkened with the extension of storage time. (2) The activities of superoxide dismutase (SOD) and peroxidase (POD) decreased with the prolongation of storage period. The SOD activity declined fastest in 1,095-1,185 d of storage, while the POD activity declined significantly in 365-395 d of storage. (3) The electrical conductivity and the contents of soluble sugar, starch in seed leach liquor increased, while the content of soluble protein declined with the extension of storage time. (4) Correlation analysis indicated that the germination percentage, germination potential and thousand-seed weight of D. styracifolium seeds have a significantly positive correlation with SOD and POD activity, while have a significantly negative correlation with the electrical conductivity, contents of soluble sugar and starch. It can be concluded that during the storage of D. styracifolium seeds, physiological and biochemical changes including decrease in antioxidase activity, rise in electrical conductivity, degradation effluent of soluble sugar and starch, degradation of soluble protein were the main factors leading to the seed deterioration.
Color ; Fabaceae ; chemistry ; enzymology ; growth & development ; metabolism ; Germination ; Peroxidases ; metabolism ; Plant Proteins ; metabolism ; Seeds ; chemistry ; enzymology ; growth & development ; metabolism ; Starch ; metabolism ; Superoxide Dismutase ; metabolism ; Time Factors

OBJECTIVETo explore the scientificity of Yunqi theory based on incidence of disease related recognitions such as year evolutive phase, host climatic qi, six climatic factors, celestial manager qi, qi in the earth by analyzing data of hypertension incidence.

METHODSA total of 1,265 inpatients with confirmed first diagnosis as hypertension were recruited at Dongzhimen Hospital, Beijing University of Chinese Medicine from February 4, 1999 to February 4, 2011. Each period (including year evolutive phase, host climatic qi, guest climatic qi) was deducted based on Yun-qi theory. Their ratios of different phases and qi in the total number of hypertension inpatients number were calculated and statistically tested.

RESULTSThere was statistical difference in ratios at year evolutive phase, celestial manager qi, and qi in the earth (P < 0.05).

CONCLUSIONThe incidence of hypertension has certain difference in each period, which is consistent with Yun-qi theory.

Objective To investigate the cognitive impairment and time-on-task characteristics of combined type(C type) and predominantly inattentive type (Ⅰ type) of children with attention deficit hyperactivity disorder(ADHD).Methods 24 cases with C type ADHD,20 cases with Ⅰ type ADHD and 24 normal children were completed 2 Block period of continuous performance test task,with conducting a comparative analysis of the behavior results of three groups and block1 and block2.Results 1.three groups comparison:hit numbers of C type (64.37 ±5.29) and Ⅰ type (63.55 ±5.28) were lower than that of the normal control group(67.04 ±2.03) ; reaction time of Ⅰ type (540.33 ± 90.33) ms was longer than that of the normal control group (470.56 ± 95.39)ms; intra-individual variability(ⅡⅤ) of C type (174.24 ± 56.3)ms and Ⅰ type (201.12 ± 50.79)ms were higher than that of the normal control group(144.72 ± 37.17) ms.Commission errors of other figures after 1 of C type was higher than that of Ⅰ type; reaction time of commission errors of Ⅰ type[(701.34 ±311.54) ms] was longer than that of C type((512.57 ± 279.22)ms),and all the differences were statistically significant (P ＜ 0.05).2.Timeon-task comparison:hit numbers,omission errors and ⅡⅤ had the significantly main effect of the type of subjects (P ＜ 0.05) ; hit numbers,omission errors,reaction time and ⅡⅤ had the significantly main effect of time-on-task (P＜0.01) ; Block2 the reaction time of C type and Ⅰ type((501.82 ± 112.47)ms,559.33 ± 90.73)ms) were significantly longer than that of Block1 ((473.19 ± 106.43) ms,(523.45 ± 99.86) ms) (P ＜ 0.05),while no significant difference (P＞0.05) in the normal control group.Conclusions C type ADHD has attention deficit and impulsivity and response inhibition defects.Ⅰ type ADHD has attention deficit and information processing capacity backward.Reaction rate of ADHD is more vulnerable to the impact of time-on-task.Two subtypes of ADHD children has different modes of cognitive impairment.

Objective The present study aimed to trace the behavior results and event-related potential (ERP) of conflict monitoring from 7 ～ 12 years old to explore the development features of the conflict monitoring.Methods In six groups of 144 children aged from 7 to 12,behavior and non-target N2 amplitude were analyzed in continuous performance test (CPT) task. Results 1. Behavior results:the reaction time of target stimulus decreased ( ( 533.33 ± 66.65 ) ms, (523.91 ± 92.96 ) ms, (468.37 ± 64. 13 ) ms, ( 46 1.48 ± 98.31 ) ms, (457.57 ±84.05 ) ms, (405.02 ± 67.90) ms) and the hitting number increased ( ( 34.87 ± 4.84 ), ( 37.64 ± 3.54 ), ( 37.95± 2.92 ), (38.67 ± 1.23 ), (39.31 ± 1.08 ), ( 39.45 ± 1.00 ) ) as age increased, and the difference was statistically significant ( P＜0.01 ). 2. ERP: ①The non-target N2 amplitude was significantly higher than the target,and the difference was statistically significant (F= 98.57, P＜ 0.01 ). ②The amplitude of non-target N2 amplitude decreased with age, and the difference was statistically significant (F= 5.54, P＜ 0. 01 ). Conclusion The non-target N2 was closely related to the monitoring conflict, and the behavior and ERP results in this study showed the development trend. 8 ～ l0 and 12 years old are the critical development period of information processing speed, attention and conflict monitoring function for children.

Objective To investigate the risk factors which indicate behavior problems and degree of conflict function defects in different subtypes of attention deficit hyperactivity disorder( ADHD),and to compare behavioral problems,family environment and conflict function in children with and without ADHD.Methods 87children with ADHD and 38 matched controls performed Simon-Stroop task while questionnaires (Parent Symptom Questionnaire and Family environment Scale)were acquired from their parents.Results Questionnaire indicated that children with ADHD-combined(ADHD-C) had the highest score of conduct problem( 1.05 ± 0.44),learning problem ( 1.97 ± 0.52 ),hyperactivity-impulsion ( 1.56 ± 0.60) and hyperactivity index ( 1.45 ± 0.40 ) than ADHDⅠ(0.65±0.32,1.58 ±0.58,1.06 ±0.46,1.01 ±0.31) and matched controls ( 0.42 ±0.24,0.77 ±0.49,0.58±0.40,0.55 ±0.34) in PSQ.ADHD-Ⅰ and ADHD-C had higher score of contradiction(3.28 ± 1.70,4.61 ±2.56 ) and lower score of family cohesion (6.75 ± 2.27,6.61 ± 2.03 ),emotional expression (5.03 ± 1.54,5.06 ±1.91 ),knowledge (3.83 ± 2.30,3.61 ± 1.81 ) and entertainment (3.70 ± 2.12,3.47 ± 2.32 ) than matched controls (2.36 ± 1.44,8.06 ± 1.71,6.03 ± 1.54,4.86 ± 1.91,4.83 ± 2.29) in FES-CV.Behavior data indicated that the correct rate of children with ADHD-Ⅰ and ADHD-C in Simon-incongruent trials( Siin:0.76 ± 0.13,0.69 ±0.13 ) and Stroop-inconsistent trials( Stin:0.82 ± 0.10,0.78 ± 0.08 )were lower and reaction time of children with ADHD-Ⅰ and ADHD-C in the Siin ( (876.4 ± 97.34) ms,( 893.8 ± 130.1 ) ms) and Stin ( ( 864.4 ± 91.82 ) ms,(860.2 ± 125.0) ms) were longer than matched controls ( (Siin (0.81 ± 0.11 ) ms,(810.4 ± 136.1 ) ms; Stin (0.87 ± 0.08 ) ms,(797.4 ± 136.1 ) ms).Pearson correlation analysis suggested that some factors in the FES-CV had correlation with behavioral problems.Conclusion This finding indicates that poor family environment is the risk factor that indicate behavioral problems in children with ADHD and behavioral problems,conflict function defeet of ADHD-C are more serious than ADHD-Ⅰ and matched controls.

Objective: To explore the relationship between blood levels of cyclophilin A (CyPA) and chronic heart failure (CHF).
Methods: A total of 166 CHF patients were enrolled as CHF group, according to NYHA classiifcation, it was further divided into 4 sub-groups: Class I,n=37, Class II,n=39, Class III,n=46 and Class IV,n=44. In addition, there was a Normal control group,n=52. Blood levels of CyPA, B-type natriuretic peptide (BNP) and high sensitivity C-reactive protein (hs-CRP) were examined and compared among different groups.
Results: Compared with Normal control group, CHF group had elevated CyPA (5.11 ± 2.43) ng/ml vs (2.28 ± 0.61) ng/ml, BNP (385.65 ± 184.06) pg/ml vs (90.37 ± 18.44) pg/ml and hs-CRP (11.74 ± 5.44) mg/L vs (5.99 ± 1.14) mg/L, all P<0.05. As increased severity of NYHA classiifcation, blood levels of CyPA, BNP and hs-CRP between 2 subgroups had the increasing trend accordingly, allP<0.05; while there was an exception: blood levels of CyPA and hs-CRP were similar between Class I subgroup and Normal control group, allP>0.05. Pearson correlation analysis indicated that blood levels of CyPA were positively related to BNP and hs-CRP in CHF patients (r=0.838,P<0.01 and r=0.755,P<0.01).
Conclusion: Blood levels of CyPA were elevated in CHF patients and it’s obviously related to NYHA classiifcation, which might have certain effects on CHF diagnosis and evaluation.

Objective To investigate behavior and electrophysiological manifestations of sustained attention and executive function in School-age children with tic disorder(TD).Methods Sixty-six school-aged children (36 TD and 30 control) participated in a CPT-AX task.Behavioral measures and ERP measures were collected.Results The 1.The Behavior results:there were no significant differences between the TD group and the control group in hitting number ((38.07 ± 3.04),(38.93 ± 1.48)),reaction time ((465.427 ± 97.00) ms,(500.17 ± 131.29) ms),the number of errors of omission((1.97 ± 3.02),(1.07 ± 1.48)) and the number of false errors ((1.77 ± 2.50),(1.07 ± 1.53)) (P ＞ 0.05).2.The ERP results:①Group and condition had significant main effect and interaction effect on N2 amplitude (P ＜ 0.05),while not on the latency of N2 (P ＞ 0.05).②Group had significant main effect on the amplitude and latency of P3,but main effect of Group and the interaction effect are not significant (P ＞ 0.05).③The TD group's amplitude of Nogo-N2 ((-1.39 ± 3.321) μV) were smaller than that of the control group ((-4.09 ± 2.94) μV) (P ＜ 0.05).Conclusion Children with TD performance impaired conflict monitor,while exhibit no deficits in sustained attention and response inhibition.

This paper designed an index for the differences in medical service prices and this index therein named the Hospital Price Difference Index ( HPDI) which is used as a quantitative tool for evaluation. During evalua-tion, the paper measured the levels of prices and the factors of influence in 18 public hospitals listed in the Sichuan Province. The results showed that the effect of regulating the levels of prices was reasonable and effective, but was sig-nificantly affected by the internal and external factors. The internal factors have been found to be the medical and clini-cal technologies, and the grade and scale acted as external ones. This paper suggested that the price department should pay more attention on the levels of prices, and hence made a reasonable reform project for the prices by taking the scale of adjustment of prices into account.

OBJECTIVE To investigate drug resistant genes associated with beta-lactamases,aminoglycosides and sulfonamides in Pseudomonas aeruginosa isolated from burned patients.METHODS Common drug resistant genes associated with beta-lactamases,aminoglycosides and sulfonamides of 20 strains of P.aeruginosa isolated from burned patients were detected by PCR.RESULTS The positive rates of genes of TEM,aac(6′)-Ⅰb,sul1 and ant(3″)-Ⅰwere 85%,85%,90% and 10%,respectively and genes of CARB and aac(6′)-Ⅱ were both positive(100%).Genes of oprD2 were all absent and genes of SHV,GES,IMP,VIM,DHA and armA were all negative.Furthermore,drug resistant genes of strains isolated from different sites of one patient on different time could be different.CONCLUSIONS Drug resistant genes of CARB and aac(6′)-Ⅱprevail in P.aeruginosa isolated from burned patients.Detections of drug resistant genes in P.aeruginosa isolated,especially continuously isolated from burned patients are essential.

Objective To investigate pathological mechanism of dysfunction of executive control in children with attention-deficit hyperactivity disorder (ADHD) ,using a new resting-state functional magnetic resonance imaging(fMRI) index, fractional amplitude of low frequency fluctuation (fALFF). Methods Thirty children of school age with ADHD and thirty gender, age and education-matched healthy controls were experienced restingstate fMRI scans. fALFF approach was used to analyze blood oxygen level-dependent fMRI(BOLD-fMRI) data in resting state. Results Compared with the normal controls,the ADHD showed decreased fALFF in the bilateral superior frontal gyrus( BA10, t=5. 40,4.11 ,Z =4.81,3.82),bilateral middle frontal gyrus( BA9,BA46, t=5.72,5.37, Z = 5.04,3.08 ), right medial frontal gyrus ( BA 10, t = 5.53, Z = 4.90 ) and left precuneus ( t = 3.81, Z =3.57). And the ADHD showed increased fALFF in the bilateral limbic lobe (BA36, t = 4.37,5.20, Z = 4.02,4.66 ), right brainstem ( t = 4.77, Z = 4.34) and bilateral cerebellum ( t = 4.65,4.83, Z = 4.24,4.38 ). Conclusion The results suggest that lower activition of frontal may be the core deficit of executive control with ADHD in resting state,and high activation in several brain regions may be related to compensatory effect.