Objective To discuss the content determination method ofα-asarone in Dianxianqing Granules. Methods Kromasil C18 column (250 mm×4.6 mm, 5 μm) was used, with methanol and water as mobile phase of gradient elution. The flow rate was 1.0 mL/min, and the detection wavelength was 257 nm. The column temperature was 25 ℃. Results The sample solution was prepared by reflux extracted with 70% ethanol for 20 min. α-asarone had a good linearity in the ranges of 1.24×10-3-7.44×10-3μg (r=0.999 5). The method was quite good in precision, stability and repeatability, and the average recovery ofα-asarone was 98.14%, with corresponding RSD of 2.5%. Conclusion The experiment provides an accurate and fast analytical method for α-asarone determination in compound preparation of traditional Chinese medicine.

Objective To investigate whether no asphyxia neonates with intrauterine distress are complicated with myocardial injury and determine the sensitive biochemical diagnostic parameters. Methods A total of 89 neonates born in the First Affiliated Hospital of Sun Yat-sen University from July 2009 to December 2009 were enrolled. Fifty-three fetal distress cases with Apgar score ＞ 7 at 1 and 5 minites were enrolled in the study group; while the rest 36 healthy neonates, whose Apgar score = 10 at 1 and 5 minites, were the control group. Umbilical artery blood samples of all cases were collected for blood gas analysis and biochemical measurement. Results(1)pH(7.23±0.07) and BE [(-4.8±3.0)mmol/L] in the study group were significantly lower than pH (7.31 ±0.03) and BE [(-2.1±1.5)mmol/L] in the control group (P＜0.05).The lactic acid of study group [(5.2±2.3)mmol/L] was higher than that of the control group [(2.3±1.1)mmol/L], and the difference was significant (P＜0.01). However, there was no significant difference between the two groups in PaO2[(16.2±7.9)mm Hg(1 mm Hg=0.133 kPa) vs. (17.5±6.7)mm Hg] and PaCO2[(54.0±11.2)mm Hg vs. (48.5±5.4) mm Hg; P＞0. 05]. (2) The level of CK-MB in neonates with fetal distress[(48 ±59) U/L] was significantly higher than that of healthy neonates [(36±27)U/L]. However, no significant difference was found in CK [(194±73)U/L vs. (162±95) U/L]and BNP levels[(519±309)ng/L vs.(481±216)ng/L;P ＞ 0.05]. (3) Spearman rank correlation analysis showed that CK-MB level was negatively correlated with pH(r=-0.296, P＜0.05) and BE (r=-0.318,P＜0.05) of umbilical artery blood,while BNP level was positively correlated with umbilical lactic acid (r=0.278, P＜0.05). No correlation was found between other parameters (P＞0.05).Conclusions Intrauterine distress without neonatal asphyxia had effect on fetal myocardial injury. CK-MB can be used as a sensitive parameter for monitoring the development of myocardial injury. The severity of myocardial injury was related to fetal acidosis.

This study was aimed to optimize Qinshuang particle best spray granulation process conditions. The or-thogonal test method was used with grain yield and baicalin transfer rate as the inspection indexes. The main in-fluence factors of Qinshuang particle spray granulation process were investigated. The results showed that the best technological parameters are atomization pressure of 1 800 Pa, inlet temperature at 90°C - 100°C, outlet temper-ature at 50 ° C - 60 ° C , and the extract relative density of 1 . 10 ( 60 ° C ) . It was concluded that the reasonable pro-cess conditions make particles with stable quality, which provide the experimental basis for industrial production.

OBJECTIVE: To evaluate the effectiveness of using artificial tears and eye exercise for intervention of dry eye disease in aircrew members. METHODS: A accidental sampling method was used and 86 patients diagnosed with dry eye disease were selected as study subjects. Artificial tears or artificial tears plus eye exercise were used in patients. Symptoms of dry eye disease were investigated. RESULTS: of break up time( BUT) and schirmer I test( SIT) were recorded.RESULTS: The main symptoms of these 86 aviators diagnosed with dry eye disease were visual fatigue( 82. 6%),dry feeling( 60. 5%),and itchy eyes( 29. 1%). Among them,28 patients( 32. 6%) were treated with artificial tears only( artificial tears group) and 58 patients( 67. 4%) were treated with artificial tears plus eye exercise( combined treatment group). The duration of treatment of less than 4 weeks,4-weeks,and 6-9 weeks were 25,36 and 25 cases,respectively.After treatment,the symptoms improved in 71 patients( 82. 6%). All patients of these two groups showed improved SIT and BUT compared with the same group before treatment( P < 0. 01). There was no significant difference in the change of SIT and BUT between the artificial tears group and the combined treatment group after treatment( P > 0. 05). There was statistical significance in the change of SIT in the main effect of treatment time( P < 0. 01),but no significant difference in the main effect of treatment measures and the interaction effect( P > 0. 05). There was no statistical significance in the change of BUT in the main effect of treatment measures,treatment time and the interaction effect( P > 0. 05).CONCLUSION: The intervention using artificial tears or artificial tears combined with eye exercise improved the subjective symptoms of dry eye disease in aircrew members. The SIT and BUT also improved after intervention.

Objective To test the scientificity, practicability, feasibility, intelligibility, and acceptability of the Primary-Level Personnel Guiding Handbook for Schistosomiasis Control(probationary edition). Methods Twenty-seven county and village doctors were selected randomly from two schistosomiasis transmission uncontrolled counties in Jiangxi Province as pretest objects. The pretest was carried out with the focus group discussion. Results The proportions of pretest objects who considered handbook had scientificity, practicability, feasibility, intelligibility and acceptability were 59.26%, 85.19%,55.56%,51.85% and 92.59%, respectively, and the pretest objects had proposals and suggestions for modification. Conclusion According to the suggestion and proposal from the pretest objects, the handbook can be modified and published.

Objective To compare transdermal penetration of triamcinolone acetonide liposparticles (TAA-LPPs) and TAA-Ethosomes in vitro. Methods The TAA-LPPs and TAA-Ethosomes were produced and the morphology was observed by transmission electron microscope,particle size was detected by laser particle analyzer. The percutaneous permeability in vitro was tested by modified Franz diffusion pools. The amount of penetrated triamcinolone acetonide and the retention in the skin were de-termined by HPLC. Results The shape of TAA-LPPs and TAA-Ethosomes was almost spherical with mean diameter of (99. 9±1. 3) and (105±1. 4) nm, respectively. The cumulative transdermal penetration of TAA-LPPs, TAA-Ethosomess and TAA suspension was (53. 59±4. 40),(87. 03±4. 87),and (30. 54±8. 61) μg·(cm2 ) -1 , respectively . The drug retention in the skin after 32 h was (1. 02±0. 13), (0. 62±0. 08), (0. 55±0. 17) μg·(cm2 ) -1 , respectively. Conclusion TAA-LPPs is better for transdermal administration of triamcinolone acetonide by reducing systemic absorption of the drug.

This study was aimed to screen out a safe and effective traditional Chinese medicine (TCM) compound prescription in insomnia treatment, through the method of uniform design and comprehensive scoring method. It provided candidate drugs to further research and development of TCM new drug. U7(76) uniform design was used to divide groups. The test was given on sleep time prolonging effect of mice injected with pentobarbital sodium. The subliminal dosage of pentobarbital hypnosis was tested on mice injected with pentobarbital sodium. The acute toxicity (LD50) was tested on mice. Comprehensive scoring method was applied to evaluate the effect to determine the optimum dose. The results showed the optimized prescription was composed of Radix Sophorae Flavescentis and Schisandra chinensis. The optimum ratio was 1:3. It was concluded that the uniform design was applied in the experimental design with 3 factors and 6 levels. Comprehensive scoring method was used to evaluate the combined effect. The optimized prescription that put benefit and risk into consideration was composed of Radix Sophorae Flavescentis and Schisandra chinensis. The best ratio was 1:3, which can be further developed.

Objective To investigate the efficacy and safety of low-dose rituximab therapy and sequential maintenance for patients with refractory idiopathic thrombocytopenic purpura. Methods Thirty-three patients with refractory idiopathic thrombocytopenic purpura received intravenous rituximab at the dose of 100 mg once a week for 4 consecutive weeks. Complete blood cell count and serum concentrations of immunoglobulin (IgG,IgM and IgA) were monitored regularly. The numbers of CD3+ and CD19+ CD20+ lymphocyte cells were assayed by flow cytometry before and after therapy. Twenty-five patients with responses(complete response and response) were divided into maintained group (12 patients) and control group (13 patients) by random digits table method. The patients in maintained group were treated with rituximab 100 mg every 6 months. The efficacy of maintenance therapy was evaluated through long-term follow-up. Results The complete response(CR) rate, response (R) rate and no response(NR) rate were 48.48%(16/33), 27.27%(9/33) and 24.24% (8/33), respectively. As a result, total effective rate was 75.76% (25/33). There were no significant changes of peripheral blood white blood cell count,hemoglobin,serum immunoglobulin and CD3+lymphocyte counts before and after treatment (P>0.05). However, CD19+ CD20+ cells were almost depleted in patients treated with rituximab: (3.71±2.64)×106/L vs. (279.33±92.78)×106/L, P<0.01. Five patients suffered from allergic response, and 1 patient developed pneumonia and respiratory failure. The relapse rates of maintained group and control group were 1/12 and 4/13, respectively. Conclusions Treatment with low-dose rituximab may be an effective and safe approach in patients with idiopathic thrombocytopenic purpura. Relapse rates can be decreased through maintenance therapy with refractory low-dose rituximab. However, the optimal therapeutic schedule need further investigation.

OBJECTIVE: To investigate the job satisfaction status and its influencing factors in civil aviation pilots in a domestic airline. METHODS: A total of 422 civil aviation pilots of an airline were selected by the stratified random sampling method and investigated by Civil Aviation Pilots' Job Satisfaction Scale. Their job satisfaction situation and influencing factors were analyzed. RESULTS: The total score of job satisfaction of research objects was( 3. 0 ± 0. 5). The median and the quartile of the work arrangement,physical environment,salary and relationship with colleague were 2. 0( 1. 2),2. 2( 1. 0),3. 4( 1. 0) and 4. 0( 1. 0) respectively. The results of ordered multivariate logistic regression analysis showed that the salary satisfaction in pilots with length of service over 10. 0 years was higher than that of pilots with service length over1. 0 year( P < 0. 05),while the satisfaction of physical environment and work arrangement in pilots with service length over10. 0 years were lower than those with service length over 1. 0 year( P < 0. 01). The salary satisfaction of captain and captain instructors were higher than that of pilots and copilots( P < 0. 05),while the satisfaction of physical environment and work arrangement captain and captain instructors were lower than that of pilots and copilots( P < 0. 05). The satisfaction of work arrangement in married pilots was lower than that of unmarried pilots( P < 0. 05). CONCLUSION: The marital status,service length and job title were the major influencing factors of job satisfaction in civil aviation pilots.

BackgroundThe mental health level of the prison police is relatively low， so finding innovative ways to improve the mental health of them is of great significance for the safety of prison supervision and the implementation of peaceful China initiative. ObjectiveTo explore the relationship between perceived social support， perceived stress and psychological resilience with mental health of prison police， and to provide references for improving their mental health. MethodsIn March 2022， 424 policemen working in a male prison in a western province were selected by cluster sampling method， and investigated with the Perceived Social Support Scale （PSSS）， Chinese Perceived Stress Scale （CPSS）， Connor-Davidson Resilience Scale （CD-RISC） and General Health Questionnaire 20 （GHQ-20）， then Process 4.2 was used employed to verify the mediating role of perceived stress as well as the moderating role of psychological resilience in the relationship between perceived social support and mental health. Results①Male subjects scored higher on GHQ-20 than female subjects （t=2.095， P<0.05）. ②CPSS score was negatively correlated with PSSS and GHQ-20 scores （r=-0.670， -0.703， P<0.01）， and GHQ-20 score showed a positive correlation with PSSS and CD-RISC scores （r=0.580， 0.693， P<0.01）. ③Perceived social support positively predict mental health （β=0.154， 95% CI： 0.133~0.175， P<0.01）. ④Perceived stress played a mediating role in the relationship between perceived social support and mental health， and the mediation effect size was 0.087， accounting for 88.78% of the total effect （95% CI： 0.064~0.112， P<0.01）. ⑤Psychological resilience played a moderating role in the second half （perceived stress→mental health） of the mediating path of "perceived social support→perceived stress→mental health"（β=0.074， 95% CI： 0.046~0.102， P<0.01）. ⑥Psychological resilience also regulated the mediation effect of perceived stress on the relationship between perceived social support and mental health ［three regression coefficients tested in turn are significant： a=-0.537 （95% CI： -0.594~-0.480， P<0.01）， b1=-0.162 （95% CI： -0.197~-0.127， P<0.01）， b3=0.074 （95% CI： 0.046~0.102， P<0.01）］. ConclusionPerceived social support of prison police has an impact on their mental health both directly and indirectly through perceived stress. In addition， perceived social support of prison police has a moderated mediation effect on mental health， and it is partially moderated by psychological resilience.［ Funded by General Project of Sichuan Prison Administrative Bureau in 2022］