Objective: To investigate the correlation of prothrombin time (PT) with clinicopathological features and prognosis of the patients with osteosarcoma. Methods: The activated partial thromboplastin time (APTT), PT, fibrinogen (FIB) and D-dimer in peripheral blood of 111 patients with osteosarcoma and 35 concurrent healthy volunteers (as the control) from May 2011 to May 2018 were tested. The correlation of PT with clinicopathological features and prognosis of the patients with osteosarcoma was analyzed. Results: The median survival time of 111 patients with osteosarcoma was 25 months, and the one-and two-year survival rates were 76.6% and 51.4%, respectively. The levels of D-dimer and FIB in the patients with osteosarcoma were higher than those in the control group (both P < 0.01), and the PT was shorter than that in the control group (P < 0.01), while the APTT was not statistical different between these two groups (P > 0.05). The PT was longer in the patients with osteosarcoma younger than 20 years old (P = 0.002), while PT had no correlation with gender, tumor size, clinical stage, tumor location and metastatic status (all P> 0.05). The overall survival time of the patients with osteosarcoma in PT ≥ 10.4 s group was shorter than that in PT < 10.4 s group (P = 0.024), the progression-free survival time of the patients with osteosarcoma had no significant difference between these two groups (P= 0.594). The overall survival time and progression-free survival time of the patients with osteosarcoma in metastasis group were shorter than those in non-metastasis group (both P< 0.001). The overall survival time (P= 0.004) and progression-free survival time (P= 0.013) of the patients with osteosarcoma in stage I / II group were longer than those in stage EI/IV group. The clinical stage, PT and metastasis status were related with the prognosis of patients with osteosarcoma (all P< 0.05). The PT and metastasis status were independent predictive factors for the prognosis of patients with osteosarcoma (both P < 0.05). Conclusion: The changes of PT may provide a reference for monitoring the condition and prognosis of patients with osteosarcoma.

In this study,Polygalae radix and its adulterants were identified by psbA-trnH sequence.The genomic DNA was extracted from forty-six samples, the psbA-trnH sequences were amplified and sequenced Bi-directionally, and then assembled sequences by Codoncode Aligner V 3.7.1. The genetic distances were computed by kimura 2-parameter (K2P) model, and the Neighbor-Joining tree was constructed by MEGA 6.0. Results showed that minimum intra-specific K2P distance of Polygala tenuifolia and Polygala sibirica were 0.004 and 0, which were smaller than the maximum intra-specific K2P. The NJ tree showed Polygalae radix can be distinguished from its adulterants by psbA-trnH sequences. Therefore, using psbA-trnH sequences can distinguish Polygalae radix from its adulterants.

Abstract: Objective　To investigate the early diagnostic value of peripheral blood procalcitonin (PCT), C-reactive protein (CRP), fibrinogen (FIB) and D-dimer (D-D) levels in patients with pulmonary tuberculosis (PTB) complicated with bacterial pneumonia. Methods　A total of 102 patients who admitted to Department of Tuberculosis of Affiliated Nantong Hospital of Shanghai University from Jan 2021 to May 2022 were enrolled in this study and divided into a group (52 cases) with pulmonary tuberculosis (PTB) patients and a group (50 cases) with PTB patients complicated with bacterial pneumonia. The levels of PCT, CRP, FIB and D-D in the peripheral blood were measured, the differences and correlations in all indicators were compared among two groups. The sensitivity and specificity of these indicators in the early diagnosis of PTB complicated with bacterial pneumonia were analyzed by receiver operating characteristic (ROC) curve. Results　The levels of PCT, CRP, FIB and D-D in the peripheral blood from the PTB complicated with bacterial pneumonia group were 0.06 (0.04, 0.16) ng/mL, 38.00 (3.88, 96.10) mg/L, 4.51 (3.02, 6.07) g/L, and 0.59 (0.34, 1.88) mg/L, respectively, which were significantly higher than corresponding 0.04 (0.03, 0.04) ng/mL, 3.20 (0.84, 7.22) mg/L, 2.96 (2.48, 3.77) g/L, and 0.27 (0.17, 0.36) mg/L in the PTB group (Z=-4.784, -5.233, -3.853, -4.199, all P<0.001). Furthermore, the levels of CRP and FIB in the PTB complicated by bacterial pneumonia group were highly positively correlated (r=0.855, P<0.001). The area under the ROC curve (AUC) of PCT, CRP, FIB and D-D for early diagnosis of PTB complicated with bacterial pneumonia were 0.757, 0.794, 0.747 and 0.764, respectively. In addition, the AUC obtained by simultaneous measurement of PCT, CRP, FIB and D-D was as high as 0.916, and the sensitivity and specificity of diagnosing PTB complicated with bacterial pneumonia were increased to 85.7% and 96.9%, respectively, which were higher than those of individual indicators. Conclusions　Levels of peripheral blood PCT, CRP, FIB, and D-D all show varying degrees of increase in patients with PTB complicated with bacterial pneumonia, and detecting the levels of all four markers, rather than any single marker, can assist in early monitoring whether the tuberculosis patients are complicated with bacterial pneumonia.

OBJECTIVETo determine lignan content in the vine stem of Schisandra chinensis during 12 months and provide the scientific basis for the development and utilization of the resources.

METHODAnalysis was carried out on an Eclipse XDB C18 column eluted with a mixture of methanol-acetonitrile-water (43: 28: 29) as the mobile phase. The flowrate was 1.0 mL x min(-1), and the detection wavelength was set at 250 nm. Schisandrin, deoxyschizandrin and schisandrin B were used as reference substance, and the external standard method was used.

RESULTThe content of three constituents in the vine stem varied under different months. Schisandrin's maximum is 2.3 mg x g(-1) in December, minimum is 1.4 mg x g(-1) in April. A Deoxyschizandrin's maximum is 0.8 mg x g(-1) in November, minimum is 0.4 mg x g(-1) in March; Schisandrin B's maximum is 3.0 mg x g(-1) in January, minimum is 1.1 mg x g(-1) in April.

CONCLUSIONThe collection seasons for the vine stem of S. chinensis are autumn and winter.

Chromatography, High Pressure Liquid ; Cyclooctanes ; chemistry ; Lignans ; chemistry ; Plant Stems ; chemistry ; Polycyclic Compounds ; chemistry ; Schisandra ; chemistry

Objective To investigate competence factors in new teachers of medical schools and construct the competence model. Methods The competence questionnaire for new teachers of medical schools was designed based on the literature review, semi-structured interviews and delphi method, and the questionnaire survey was conducted in new teachers of 12 medical schools . Factors were extracted by principal component analysis. Results Cronbach's α of questionnaire was 0.95. There were six factors in the model: scientific research ability (38.282％), teaching ability (10.118％), professional ethics (7.150％), communication skills (5.707％), personal characteristics (4.707％) and self-improvement ability (4.218％). Conclusion Construction of competence model in new teachers of medical schools can optimize teachers' pre-job training and provide references to study related policies.

Objective:To compare and analyze the medication patterns for adult and children diarrhea from Erxu Mingyi Lei’an. Methods:The cases and formula prescriptions on adult and children diarrhea were recorded from Erxu Mingyi Lei ' an. The data was analyzed and compared between adult and children by the Ancient and Modern Medical Records Cloud Platform (V 2.1), including frequency statistics, association rule analysis, drug pair analysis, efficacy statistics, drug taste tropism statistics, and cluster analysis. Results:A total of 456 prescriptions of adult diarrhea were abstracted, involving 360 drugs, and the top 5 drugs were Poria, Atractylodis Macrocephalae Rhizoma, Citri Reticulatae Pericarpium, Paeoniae Radix Alba and Aucklandiae Radix. The Atractylodis Macrocephalae Rhizoma paired with Poria, Citri Reticulatae Pericarpium with Poria, Citri Reticulatae Pericarpium with Atractylodis Macrocephalae Rhizoma, and Paeoniae Radix Alba with Atractylodis Macrocephalae Rhizoma were commonly used in the treatment of adult diarrhea. Citri Reticulatae Pericarpium, Atractylodis Macrocephalae Rhizoma and Poria were the core drugs for adult diarrhea. There were 111 prescriptions for pediatric diarrhea, involving 180 drugs, and the top 5 were Atractylodis Macrocephalae Rhizoma, Poria, Paeoniae Radix Alba, Glycyrrhizae Radix et Rhizoma, and Nelumbinis Folium. The Poria paired with Atractylodis Macrocephalae Rhizoma, Atractylodis Macrocephalae Rhizoma with Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle, and Aconiti Lateralis Radix Praeparata with Atractylodis Macrocephalae Rhizoma were commonly used in the treatment of diarrhea in children. The Atractylodis Macrocephalae Rhizoma, Poria and Aconiti Lateralis Radix Praeparata were the core drugs for children diarrhea. The main charateristics of drugswas warm type, sweet taste, and the main meridian belongs to spleen, followed by stomach and lung meridians. The use of carbided drugs in adults were significantly higher than children. Conclusions:The Erxu Mingyi Lei’an forcused the treatment of invigorating the spleen qi, where the adult formular often matches the drugs of drying dampness and invigorating the spleen, aromatizing dampness, slight infiltration and eliminating dampness, while the children formular often matches the drugs of warming the Yang and warming the Yang. Many kinds of carbonaceous drugs can be used in the treatment of adult diarrhea, but they should be used with caution in the treatment of children.

Objective: This study aims to evaluate the efficacy of specific exercise therapy for the treatment of skeletally immature idiopathic scoliosis (IS). Methods: A total of 51 mild IS patients receiving specific exercise therapy in Guangdong Xinmiao Scoliosis Prevention Center from October 2017 to September 2021 were recruited in this study. Treatment outcome were evaluated at 1 year follow up. All the participants were divided into two groups: open ( n =32) and closed triradiate cartilage group ( n =19), and outcome of treatment were compared within the two groups. Results: After (26.5±9.8) months of treatment, the Cobb angle of the major curve was corrected from an average of (15.5±4.2)° to (11.3±6.7)°, with an average correction of (4.5±5.7)°. Among them, 58.9% patients achieved improvement in the major curve Cobb angle, 33.3% achieved stabilization, and 7.8% progressed. There was no significant difference in the major curve Cobb angle between the closed and open triradiate cartilage groups before treatment( t =-0.73, P =0.47), whereas there was a significant difference in the correction of the major curve after treatment( t =-2.73 , P <0.05). Conclusion Specific exercise therapy effectively prevents the progression or corrects the scoliosis in patients with skeletally immature idiopathic scoliosis. It s more effective in patients with open triradiate cartilage than in those with closed triradiate cartilage.

Objective: To analyze the mental health status and its impact factors among nurses, finding ways to improve the mental health of nurses. Methods: A total of 13 425 female healthcare workers aged from 18 to 65 were selected as study objects. The survey was conducted with unified design questionnaire. The survey included the basic situation of the individuals and SCL-90 questionnaire. Comparing the female doctors, the mental health status and its impact factors of nurses were analyzed. Results: The income, age, education and occupation, which include shift work, heavy work load and overtime work are different between nurses and doctors. The main mental health problems of nurses were obsessive-compulsive symptoms, depressive symptoms and somatization. The results of univariate analysis indicated that shift work, overtime work, and heavy work load affected the positive rate of each factor. The results of multivariate analysis showed that occupation, shift work, overtime work, and heavy work load have significant adverse effects on the positive rate of the total score in female healthcare workers (P<0.01) . The positive rate of each dimension of SCL-90 in nurses is significantly higher than that of doctors. Conclusion The mental health problems of nurses are significantly higher than doctors. The main reasons are low occupational level and adverse workstyles which include shift work, heavy workload and so on. Health administration and hospital management departments should pay much more attention to the mental health of nurses, improving their mental health through a variety of ways.