Methaqualone and 2-methyl-3 [2- (hydroxymethyl) phenyl]- 4 (3H) quinazolinone (metabolite I) concentrations in human serum wereanalyzed quantitatively by reverse high performance liquid chromatography (RP-HPLC). The concentrations of methaqualone ranging from 1-35?g/ml were in good linear relationship(Correlation coefficient r = 0. 9980, regression line y = 0. 06324x-0. 1029), The average recovery of methaqualone reached as high as 102.08?9. 987(SD)% (n= 5). The detective limit was 1 ng. The relative quantity of metabolite I was determined according to the linear concentration of methaqulone. RP-HPLC assay is proved to be useful in determening blood methaqualone and metabolite I concentrations in forensic toxicology.

Background and purpose:The effective rate of ifrst-line chemotherapy for advanced lung cancer is 30%-40%. The purpose of this study was to evaluate the efifcacy and adverse effects of pemetrexed combined with carboplatin or cisplatin in the treatment of patients with advanced non-squamous non-small cell lung cancer (NSCLC). Methods:One hundrend and twenty-one patients with advanced non-squamous NSCLC were enrolled in this study and all of these patients had been conifrmed with pathology or cytology. Among the 121 cases, 60 cases were male and 61 were female, the median age was 59 years, adnenocarcinoma in 113 patients and large cell carcinoma in 8 patients. Combination regimen: patients received pemetrexed 500 mg/m2 on day 1 and carboplatin 300 mg/m2 or cisplatin 70 mg/m2 on day 1 by intravenous infusion, administrated every 3 weeks for 2 to 6 cycles. All patients who received 2 or more cycles could be evaluated. Disease control rate (DCR) was the primary end point; secondary end points included progression-free survival (PFS), 1-year survival rate and safety.Results:There was 1 case with complete response (CR), 44 cases achieved partial response (PR), 50 had stable disease (SD) and 26 cases had progressive disease (PD) in the overall cases. ORR and DCR were 37.2% (45/121) and 78.5% (95/121), respectively. The median PFS time was 5.2 months and 1-year survival rate was 59.0%. In pemetrexed combined with carboplatin group, the ORR and DCRwere 38.3% (23/60) and 78.3% (47/60), respectively; The median PFS was 5.1 months (95%CI: 3.8-6.4 month) and 1-year survival rate was 55.2%. The patients treated with pemetrexed plus cisplatin, the ORR and DCR were 36.1% (22/61) and 78.7% (48/61), respectively. Median PFS was 6.2 months (95%CI: 4.3-8.1 month) and 1-year survival rate was 62.5%. There were no statistical differences between carboplatin/pemetrexed and cisplatin/pemetrexed for both ORR, DCR, PFS and 1-year survival rate (P>0.05). The major adverse effects were leukopenia, neutropenia, fatigue and gastrointestinal reaction.Conclusion:Pemetrexed plus platinum chemotherapy could be considered as the ifrst-line treatment option for advanced non-squamous NSCLC patients. Pemetrexed combined with carboplatin/ cisplatin regimen has efifcacy with mild toxicity and better tolerability.

Objective To study the effect of ratanasampil (RNSP) which is Traditional Tibetan Medicine on the levels of serum β-amyloid protein, interleukin and tumor necrosis factor alpha (TNF-α) in patients with mild to moderate Alzheimer's disease (AD). Methods One hundred AD patients were divided into two groups in randomized controlled study, including treatment group (RNSP 1 g/d) and control group (piracetam 2.4 g/d). The treatment lasted 12 weeks. The Mini Mental State Examination (MMSE), Alzheimer' s disease Assessment Scale-cognitive subscale (ADAS-cog) and Activity of Daily Living Scale (ADLs) were taken to evaluate the efficacy. Serum levels of amyloid peptides (Aβ40 and Aβ42 ) were measured by ELISA assay. The radioimmunologic assay was used to determine the serum levels of IL-1β, IL-2, IL-6, IL-8 and TNF-α. Results The scores of MMSE, ADAS-cog and ADL significantly improved at 12 weeks after RNSP treatment (P＜0.01, 0.01, 0.05, respectively), while had no significant changes in piracetam group (P＜0.05).The levels of TNF-α, IL-1β, IL-6 and Aβ42 were significantly lower in RNSP group than in Piracetam group (P＜0.01). There was a decrease trend of the Aβ42/Aβ40 ratio at 12 weeks after RNSP treatment (P＜0. 05, P＜0.01 ). The serum Aβ42 level had strong correlations with TNF-α, IL-1 β and IL-6. There were no significant differences in Aβ40 and IL-8 between RNSP group and piracetam group. No obvious drug side effect happened on the groups. Conclusions The reductions of serum TNF-α, IL-1β and IL-6 levels after RNSP treatment may lead to decrease of Aβ42 production in AD patients. RNSP may decrease the Aβ42/Aβ40 ratio and slow down the progress of AD. It may improve the learning and memory ability in treating patients with mild to moderate AD and is well tolerated and safe.

Background and purpose:For patients with advanced lung adenocarcinoma harboring an activating EGFR gene mutation, the current standard of care is EGFR-TKI alone. This study aimed to compare efficacy and safety of gefitinib plus chemotherapy with gefitinib or chemotherapy alone for treating advanced lung adenocarcinoma with an activatingEGFR gene mutation.Methods:This study included 61 patients with lung adenocarcinoma harboring an acti-vatingEGFR gene mutation (19 exons deletion and exon 21 L858R mutations) whose ECOG performance status was 0 or 1. Patients were randomly divided into 3 groups. Group A (n=20) were given carboplatin/pemetrexed of a 4-week cycle, six cycles at most, plus gefitinib (pemetrexed 500 mg/m2, d1; carboplatin AUC 5, d1; gefitinib 250 mg/d, d 5-21), and then re-ceived pemetrexed of a 4-week cycle plus gefitinib as maintenance therapy; Group B (n=20) were given carboplatin/peme-trexed of a 4-week cycle, six cycles at most (pemetrexed 500 mg/m2, d1; carboplatin AUC 5, d1), then received pemetrexed as maintenance therapy; Group C (n=21) were given gefitinib (gefitinib 250 mg/d). Patients continued to receive therapy until disease progression or unacceptable toxicity or death. The primary end point was middle PFS and 12 months PFS rate. The secondary end points included objective response rate and adverse events.Results:Groups A and C both lost 1 case during follow-up. Median PFS for patients was 20.1 months (95%CI:18.0-22.2) in group A, 5.5 months (95%CI:3.9-7.2) in group B, and 9.8 months (95%CI:6.8-12.8) in group C. PFS rates of 12 months for groups A, B and C were 78.9%, 15.0% and 40.0%, respectively. The overall objective response rates for groups A, B and C were 84.2%, 35.0% and 65.0%, respectively. Serious adverse events were reported by 36.8% for group A, 30.0% for group B, and 5.0% for group C. The most common grade 3/4 adverse events were neutropenia (3 cases in group A, 4 cases in group B), fatigue (2 cases in group A, 2 cases in group B) and liver function impairment (2 cases in group A, 1 case in group C).Conclusion:Among patients withEGFR mutant lung adenocarcinoma, combination of chemotherapy with gefitinib as first-line treatment demonstrates an improvement in PFS. Long-term survival results will be further followed up.

Objective:To explore the correlation between screen sedentary behavior and sleep quality of the elderly people in the community, so as to provide a reference for improving sleep quality of the elderly people in the community.Methods:From November 2021 to April 2022, 627 older adults from 3 communities in Hefei, Anhui Province were selected as the research objects using the convenience sampling method. The General Information Questionnaire, Measure of Older Adults' Sedentary Time Questionnaire, and Pittsburgh Sleep Quality Index (PSQI) were used to investigate the elderly people in the community. Pearson correlation analysis was used to analyse the correlation between screen sedentary behavior and sleep quality of the elderly people in the community. The influencing factors of sleep quality were assessed by Binary Logistic regression. A total of 660 questionnaires were distributed and 627 valid questionnaires were recovered, with an effective recovery rate of 95.0% (627/660) .Results:The screen sedentary behavior time of 627 elderly people in the community was (3.53±1.52) h/d, the total score of PSQI was (7.11±3.58) , and the incidence of sleep disorders was 37.48% (235/627) . Pearson correlation analysis showed that screen sedentary positively correlated with the total score of PQSI ( r=0.466, P<0.01) . Binary Logistic regression analysis results showed that the screen sedentary behavior ( OR=1.892, 95% CI: 1.638-2.185) , female ( OR=1.963, 95% CI: 1.120-3.441) , self-reported poor health status ( OR=3.332, 95% CI: 1.380-8.043) were the risk factors of sleep quality of the elderly people in the community. Conclusions:The screen sedentary behavior and sleep quality of the elderly people in the community are not optimistic, and the screen sedentary behavior, female, self-reported poor health status are the risk factors of sleep quality of the elderly people in the community. Community health staff should develop targeted intervention strategies to help the elderly people in the community reduce screen sedentary behavior time and improve sleep quality.

Objective:To comprehensively understand the current situation of outpatient management in tertiary medical institutions in Anhui Province under the COVID-19 epidemic, and to provide empirical reference for effective prevention and control of the epidemic.Methods:In December 2020, a stratified cluster sampling method was used to investigate and score the current situation of outpatient management in 56 tertiary medical institutions in Anhui Province. The survey content included four dimensions: appointment and triage setting and management, fever clinic setting and management, nosocomial infection prevention and control management, and medical resource storage management. The scoring results were divided into three grades, namely " good" (total score≥90 points), " acceptable" (85≤total score<90 points)and " inadequate" (total score<85 points). SPSS 21.0 software was used for data statistical analysis. Independent sample t-test was used to compare the outpatient setting and management scores of medical institutions, and the proportion of assessment grades was used chi-square inspection.Results:The outpatient setting and management of 56 tertiary medical institutions in Anhui Province were evaluated as good in 36, acceptable in 6 and inadequate in 14. The outpatient setting and management score was(81.55±24.94), including(16.53±2.66)in " appointment and triage setting and management" , (47.62±19.60) in " fever clinic setting and management" , (8.69±1.44)in " nosocomial infection prevention and control management" , and (8.75±3.02) in " medical resource storage management" . The total scores and four dimension scores of 39 general hospitals were higher than those of 17 specialized hospitals, and the differences were significant( P<0.05). Conclusions:The overall situation of outpatient epidemic prevention and control management in tertiary medical institutions in Anhui Province is good, but the construction and control of specialized hospitals need to be further strengthened.

Objective:To investigate the scientific research ability of undergraduate nursing interns and to analyze the mediating effect of professional identity between achievement motivation and scientific research ability among undergraduate nursing interns.Methods:From November 2019 to December 2019, this study selected 198 nursing undergraduates interning at a ClassⅢ Grade A hospital in Hefei as subjects by convenience sampling. All nursing undergraduates were investigated with the General Information Scale, Scientific Research Ability Self-evaluation Rating Scale of Nursing Staff, Professional Identity Scale for Nurses and Achievement Motivation Scale.Results:Among those undergraduate nursing interns, the total score of scientific research ability was (59.60±22.98) with the highest score in the capacity of writing a research report and the lowest score in the capacity of generating the research idea. Multiple linear regression analysis showed that the scientific research ability of undergraduate nursing interns was influenced by the research time, annual family incomes and the professional identity which explained 71.6% of the total variance. Mediating effect test indicated an indirect effect of achievement motivation on scientific research ability of nursing undergraduates by completely taking professional identity as an intermediary variable.Conclusions:Undergraduate nursing interns have a low to moderate level of scientific research ability. Professional identity has a complete mediating effect in the effect of achievement motivation on scientific research ability which points out that hospitals and universities should take measures to improve the achievement motivation and professional identity of undergraduate nursing interns so as to promote the improvement of their scientific research abilities.

Objective:To explore the chain mediating effect of intrusive thinking and psychological distress on the fear of disease progression and quality of life of kidney transplant recipients, with a view to providing scientific theoretical guidance for effective psychological interventions for kidney transplant recipients.Methods:This study is a cross-sectional study. Convenience sampling was used to select 312 kidney transplant recipients who were followed up in the Outpatient Clinic of the First Affiliated Hospital of University of Science and Technology of China from January to May 2019. Patients were investigated with the General Information Questionnaire, the Fear of Progression Questionnaire, the Impact of Events Scale-Revised Intrusion Subscale, Distress Thermometer and 12-Item Short-Form Health Survey Questionnaire. Mplus 8.3 was used to construct and verify multiple intermediary models.Results:A total of 296 kidney transplant recipients were included in this study. In quality of life, the mental health score was (49.58±8.97) , and the physical health score was (49.90±9.17) . Fear of disease progression, intrusive thinking and psychological distress were all negatively correlated with mental health and physical health of quality of life (the r values were -0.453 to -0.401, P<0.01) . The mediating effect of fear of disease progression on the quality of life was established. The total mediating effect value was -0.273, and the specific mediating effect of intrusive thinking accounted for 46.52%, and the specific mediating effect of psychological distress accounted for 41.76%. The chain mediating effect of intrusive thinking and psychological distress between fear of disease progression and quality of life accounted for 11.72%. Conclusions:The intrusive thinking and psychological distress of kidney transplant recipients are established as a chain mediation between the fear of disease progression and the quality of life. While paying attention to patients' fear of disease, clinical staff should pay attention to assessing patients' intrusive thinking and psychological distress, and take targeted measures to reduce the impact of fear of disease progression on the quality of life.