Objective:To establish a RP-HPLC method with pre-column derivation for determining the content of stilbene glyco-sides in Yening granules. Methods:DNS-Cl was used as the derivation reagent, a Wondasil-C8 column (250 mm × 4. 6 mm, 5 μm) was used as the stationary phase and 30mM ammonium phosphatere gulation (pH 3. 5)-acetonitrile (78∶22) was applied as the mobile phase, a fluorescence detector (λex=370 nm,λem=560 nm) was used, the flow rate was 1. 0 ml·ml-1 , the column temperature was 30℃ and the injection volume was 20 μl. Results: There was no interference from the other substances in the preparation. The linear range of the two stilbene glycosides was 0.071-27.280 mg·ml-1(r=0.999 9). The average recovery was 99.04%(RSD=0. 1%, n= 9). Conclusion:The method is simple, quick, sensitive and accurate, which can be used for the quality control of Ye-ning granules.

Objective To study the function of emotional capital theory in activating the nursing human resources. Methods We used emotional capital theory together with the use of incentives and humane management of emotional exchange to meet the individual demands of nurses, in order to accumulate good for the intrinsic emotional capital of the hospital. At the same time, attention was paid to detail services and vigorously carried out the moving services to accumulate external emotional capital for the hospital. Results After the implementation of emotional capital management, the satisfaction rate of the nurse improved 3.6% than before, and the satisfaction rate of the patients increased from 94.2% to 98.4%.In addition,the nursing complaints redueed from six down to two, the written recognition received from patients increased from 3 to 8, the quality of the care integrated service score increased from 93.3 points to 97.8 points on average, and the nursing errors reduced from 16 to 8. Condusions Use of emotional capital management theory was conducive to activate the nursing human resources, improve the quality of the nursing service and the efficiency of management.

Objective To explore the relationship among social support, postpartum depression and quality of life of puerperal women. Methods A total of 348 puerperal women were investigated with Postnatal Social Support Questionnaire,Edinburgh Postnatal Depression Scale (EPDS) and WHO Quality of Life-BREF (WHOQOL-BREF). Results Pearson correlation analysis showed that there was a significant positive correlation between social support and the quality of life (r=0.483, P < 0.01), and a significant negative correlation to postpartum depression (r=-0.243, P < 0.01),and a significant negative correlation between postpartum depression and quality of life (r=-0.408, P<0.01). Intermediary effect of postpartum depression was tested. Conclusions A good social support system is benefit to improve depression scores for EPDS, and promote the life quality in puerperal women.

OBJECTIVE:To establish the method for the content determination of rapamycin (RAPA) in human monocyte THP-1 derived foam cells,and to study the effects of RAPA targeting preparation(RAPA-NP-Apt)targeting at foam cells. METH-ODS:Foam cells model were established through THP-1 cells were induced by oxidized low density lipoprotein. Foam cells were incubated with 200 ng/mL RAPA or 200,400,800 ng/mL RAPA-NP-Apt for 60 min. The content of RAPA was determined by HPLC. The determination was performed on Diamonsil C18 column with mobile phase consisted of acetonitrile-water(90:10,V/V) at flow rate of 1.0 mL/min. The column temperature was set at 40 ℃,and the detection wavelength was 278 nm. The sample size was 20 μL. RESULTS:The concentration of RAPA ranged 50-6400 ng/mL (r=0.99996) with average recovery of 98.72%(RSD=0.62%,n=3). RSDs of inter-day and intra-day were not more than 6.15%(n=6),RSD of stability was lower than 2%(n=6),and RSD of repeatability was 1.64%(n=6). After foam cells were incubated with RAPA or low-concentration,medi-um-concentration and high-concentration of RAPA-NP-Apt,the contents of RAPA were 12,43,98,140 ng/106 cells. CONCLU-SIONS:The method is simple,stable and reproducible. It can be used for content determination of RAPA in foam cells. RA-PA-NP-Apt can improve the effects of RAPA targeting at foam cells.

Objective:to do clinical study on effect of sleep-related behavior modification and relaxation training on insomnia.Method:44 outclinic patients with insomnia received sleep-related behavior modification and relaxation training for 8 weeks. Using self-designed inventory to assess the outcome.Result:the time of sleep increased since the third week, and increased continuously. After the intervention, the rate of satisfaction about sleep increased from 23% at the baseline to 86.1%. 36 of the 44 patients completed the 8-week clinical study. Conclusion:sleep-related behavior modification and relaxation training can improve sleep of patients with insomnia.

Objective To raise awareness of the late-onset meningitis caused by group B streptococcus (GBS) which was homogenous to the maternal colonization.Methods The clinical data of late-onset GBS meningitis in neonates twins whose pathogens were homogenous to their maternal colonization were collected from Department of Neonatology,Guangzhou Women and Children's Medical Center.The general conditions,clinical symptoms,laboratory tests and drug treatment of the twins and their mother were retrospectively analyzed,and the GBS homology during inpatient care was tested.And the progress of the twins' condition was investigated by telephone follow-up.Results The mother had two pregnancies without prenatal GBS screening or intrapartum antimicrobial intervention for GBS,everything was normal during pregnancy and delivery.Twins were born through cesarean section.The elder sister was discharged with Linezolid taken orally after 167 days in hospital without convulsions,shaking or other discomfort.The elder sister was followed up for every 2 weeks,and in the last time of follow-up,cerebrospinal fluid white blood cell counts were 45 × 106/L,protein level was 1.52 g/L and Linezolid was withdrawn.The younger brother was discharged after 58 days in hospital with follow-up for every 2 weeks,and in the last time of follow-up,cerebrospinal fluid white blood cell counts were 30 × 106/L,protein level was 0.66 g/L.During the hospitalization and follow-up without convulsions and irritation,and the cranial magnetic resonance imaging of the twin brother was normal.Test results showed that the GBS bacteria strain for twins and their mother were all serotype Ⅲ.The possibility of the GBS homology was more than 90％.Conclusions The toxicity of serotype Ⅲ GBS strain was strong.More proactive precautions should be considered to apply for the mother whose first birth already had GBS infection.Early identification and intervention of infection risk factors would help optimize the anti-infection treatment program and reduce nerve system damage and other adverse outcomes caused by invasive GBS infection.

Objective: To evaluate diagnostic performance of Todd-Hewitt (T-H) broth culture method, direct culture method, liquid chromogenic culture method, and loop-mediated isothermal amplification (LAMP) method for screening group B streptococcus (GBS) during late pregnancy. Methods: In the retrospective study, the rectal vaginal secretions samples were collected from pregnant women at 35 to 37 weeks at the obstetrics clinic of Guangzhou Women and Children′s Medical Center affiliated to Guangzhou Medical University during October 2016 to April 2018. For the purposes of clinical evaluation, T-H broth culture was used as the standard reference method, and double-blind trials were used to evaluate diagnostic performance of direct culture method, liquid chromogenic culture method, and LAMP method for screening group B streptococcus during late pregnancy in three research stages. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), coincidence rate and Yoden index for each method were calculated. Also, the level of agreement between each method and T-H broth was assessed using the kappa (k) coefficient. Results: A total of 969 specimens were detected by the T-H enrichment culture method, and 90 were positive (9.3%). The sensitivities from high to low were LAMP method [100% (25/25)], direct culture method [81.5% (22/27), 95%CI:65.8%-97.1%], and liquid color culture method [71.1% (27/38), 95%CI:55.9%-86.2%]. Specificities were direct culture method [100% (282/282)], liquid color culture method [98.1% (455/464), 95%CI:96.8%-99.3%], and LAMP method [94.0% (125/133), 95%CI: 89.9%-98.1%]. The coincidence rates were direct culture method [98.4% (22+282)/309], liquid color culture method [96.0% (27+455)/502], and LAMP method [94.9% (25+125)/158]. The Kappa values of the direct culture method (0.889), LAMP method (0.832) and the enrichment culture method were all ≥0.75, and that of the liquid color culture method was 0.708. The false negative rate of direct culture method was 18.5% (5/27), and no false negative case by LAMP method, but its false positive rate was 6.0% (8/133). The false negative rate and false positive rate of liquid color culture method were 28.9% (11/38) and 1.9% (9/464), respectively. Conclusions Of the three screening methods compared in this study, only the LAMP method has the advantages in sensitivity, specificity, and coincidence rate compared with T-H enriched culture method, while the others have a certain degree of false negatives rate. The clinical laboratory can introduce these methods based on laboratory facilities and staffing, or refer to the European and American guidelines and combine the recommended antenatal GBS screening method with intrapartum nucleic acid amplification tests to best meet the clinical demands.

Objective To investigate the clinical characteristics,antibiotic susceptibilities and serotypes of Group B Streptococcus(GBS)isolated from neonatal meningitis to provide references for the prevention and treatment of neonatal GBS meningitis. Methods From June 2013 to June 2016,we surveyed the GBS strains iso-lated from purulent meningitis of < 90 days infants from Guangzhou Women and Children′s Medical Center. The GBS isolates were identified and the minimum inhibitory concentration of the antibiotics was determined by Vitek 2 Compact automatic bacterial identification system.GBS serotyping was performed using Strep-B-Latex?rapid latex agglutination test kit. Results A total of 46 cases of neonatal GBS meningitis,15 cases of early-onset infection and 31 cases of late-onset infection were diagnosed. 78.3% of GBS meningitis with varying degrees of complica-tions.Among 41 survivors with 3~24 months follow-up,50% of the early-onset and 44.8% of the late-onset GBS meningitis with varying degrees of neurological sequelae.Four capsular types were identified among the 46 isolates, serotype-Ⅲwas the most prevalent(73.9%),followed by Ib(19.6%),V(4.3%)and Ia(2.2%).All the isolates were susceptible to penicillins,cephalosporins,linezolid and vancomycin. Conclusion The highly pathogenic serotype-Ⅲ was the predominant serotype among neonatal GBS meningitis in Guangzhou,Therefore,it is neces-sary to strengthen the epidemiological surveillance of GBS invasive infection and the effective implementation of pre-ventive measures.

ObjectiveTo explore how hyperthyroidism induces ventricular remodeling via activating β-catenin/FoxO1 in rat cardiomyocytes. MethodsHyperthyroidism-induced ventricular remodeling rat models were established by intraperitoneal injection of levothyroxine （T4） at 0.1 mg/kg for 30 days. β-catenin inhibitor MSAB （14 mg/kg） was administrated for 30 days. We used western blot to detect the expression of myocardial hypertrophy marker ANP， β-catenin and FoxO1； immunofluorescence to examine the expression and intracellular distribution of β-catenin and FoxO1. Hyperthyroidism-induced cardiomyocyte hypertrophy rat models were established by treatment of triiodothyronine （T3） into cultured primary neonatal rat cardiomyocytes for 24 hours. β-catenin siRNA （30 nmol/L） was used to down-regulate β-catenin expression in cardiomyocytes. Western blot and immunofluorescence were used to analyze the effects of β-catenin inhibition on the hyperthyroidism-induced cardiomyocyte hypertrophy. ResultsFollowing Wnt/β-catenin activation， β-catenin was found increased nuclear expression， to bind to the nuclear transcriptional factors and regulate the gene expression. β-catenin nuclear expression was significantly increased in the hyperthyroidism-induced ventricular remodeling rats， but no change was found in the expression of typical transcriptional factor TCF7l2. Our results revealed that inhibiting β-catenin by MSAB attenuated the hyperthyroidism-induced rat ventricular remodeling. Further analysis indicated that β-catenin/FoxO1 expression was significantly increased in hyperthyroidism-induced myocardial hypertrophy which could be attenuated by suppressing β-catenin/FoxO1 in cardiomyocytes. Conclusionsβ-catenin/FoxO1 is activated in hyperthyroidism-induced myocardial hypertrophy and β-catenin/FoxO1 inhibition attenuates hyperthyroidism-induced cardiomyocyte hypertrophy.