In this paper,the author preliminarily discusses significance for strengthening the standard work of ethnic crude drugs in China,and summarizes overall achievements and insufficiency of this work.Further,the authors puts forward his own points about the scope or conditions of the crude drugs recorded in national or local drug standards,the main principle of quality standards formulation,as well as several problems that should be paid attention to in the actual research.Moreover,the author puts forward some beneficial suggestions about strengthening the standardization building of ethnic crude drugs in China.

Objective To evaluate the effect of delayed ligature of the umbilical cord on the blood volume in premature infants in early time. Methods From Oct 2007 to Jun 2010,194 premature infants with vaginal birth in department of genecology and obstetrics were randomly divided into routine ligature of the umbilical cord group (100 cases) and delayed ligature of the umbilical cord group (94 cases), comparision were made on ligature time, blood routine examination,blood pressure,oxyhemoglobin saturation and anemia incidence in 24 h,48 h,and 72 h after birth,and hemobilirubin on 1 d,2 d,3 d,and 7 d after birth. Results There were significant differences between the two groups in delayed ligature time [(100. 14 + 10. 57) s vs (22. 40 +5.02) s,P ＜0. 05)]. The hemoglobin and blood pressure in delayed ligature umbilical group were increased significantly(P ＜ 0. 05). There was 3 cases (3. 19%) of anemia in delayed ligature of the umbilical cord group, and 11 cases (11.00%) in routine ligature of the umbilical cord group, which showed significant difference (P ＜ 0. 05). And the hemobilirubin on 7 d after birth showed no significant difference between the two groups(P ＞ 0. 05). Conclusion Delayed ligature of umbilical cord has a significant influence on hemoglobin and blood pressure of premature infant. It can increase the blood volume, and reduce the incidence of anemia in early time.

Objective To study the clinic features and the mechanism of skin damage induced by high-dose methotrexate(HD-MTX).Method Children treated with HD-MTX were enrolled in a retrospective study in which the incidence and presentations of skin damage were concluded.Mechanism of the damage was studied base on skin pathology of an animal model.Result Skin damage presented in 3～9(median 5) days after HD-MTX and usually followed by bullation and exfoliation.Twelve cases,more severe than the others,accompanied with fever and symptoms of other organs especially the respiratory tract and the intestine.Skin damage was reduced when large dose rehydration used before,during and after HD-MTX.Conclusion HD-MTX may cause scald-like skin damage directly by its prolonged toxic effect on epidermal cells.Besides extended tetrahydrofolic acid rescue and supportive treatments,anti infection is the most important in dealing this condition.

Objective To examine the effect of labouring in water on analgesia of vaginal delivery.Methods From June 2009 to February 2011,38 women who had volunteered to deliver in water in the obstetrical department were set as the observation group,another 70 women who chose vaginal delivery were named as the control group in the corresponding period.The items of labor pain,satisfaction with the birth experience,length of labor and neonatal outcomes were compared.Results The pain level of the observation group after labouring in water decreased compared with that before immersion in water.The delivery course was not influenced with a high rate of vaginal delivery.Conclusions Labouring in water can alleviate delivery pain,increase rate of vaginal delivery with no influence on delivery course and outcome of mothers and infants.It is a safe and effective analgesia method which should be widely applied.

Objective To explore the value of combined detection with MMP-9 and uPA in the progno-sis of pancreatic carcinoma. Methods By immunohistochemistry PV methods,the expression of MMP-9 and uPA was respectively studied in 63 surgical specimens of primary pancreatic carcinoma and the survival time of patients with pancreatic carcinoma was analysed. Results The expressions of MMP-9 and uPA were positively related(r=0. 573,P=0. 000). The expression of MMP-9 and uPA significantly correlated with differentiation (r= -0. 271,P=0. 032;r= -0. 333,P=0. 008),TNM stages(r= -0. 449,P=0. 000;r= -0. 430,P=0. 000)and lymph node metastasis(r=0. 329,P=0. 009;r=0. 400,P=0. 001),separately. The expression of MMP-9 had also a significant correlation with tumer size(r= -0. 297,P=0. 018)and distant metastasis(r=0. 320,P=0. 011). Univariate analysis identified that tumor size(χ2 =8. 766,P=0. 012),differentiation(χ2 =29. 050,P=0. 000),clinical stage(χ2 =24. 940,P=0. 000),distant metastasis(χ2 =12. 846,P=0. 000), lymph node metastasis(χ2 =15. 457,P=0. 000),MMP-9(χ2 =32. 700,P=0. 000)and uPA(χ2 =41. 495,P=0. 000)were significantly associated with prognosis. Kaplan-Meier survival analysis showed that 1-year survival rate of patients with MMP-9 ( -),uPA ( -)were significantly longer than that of the patients with MMP-9( ﹢),uPA( ﹢),respectively(χ2 =32. 700,P=0. 000;χ2 =41. 495,P=0. 000);1-year survival rate of patients with MMP-9( -)/uPA( -)was significantly longer than the others( Log-rank test,χ2 = 54. 892, P=0. 000). COX regression revealed that differentiation(RR=2. 315,P=0. 004),clinical stage(RR=1. 694, P=0. 002),MMP-9(RR=0. 165,P=0. 000)and uPA(RR=0. 244,P=0. 007)was independent prognostic factors in pancreatic carcinoma. Conclusion They may have a synergistic function in the the process of growth and invasion in pancreatic cancer between MMP-9 and uPA,and the posssible mechanism is that uPA activate degradation of MMP-9,which is not favorable to prognosis. Combined analysis of MMP-9 and uPA may lead to a more reliable prognostic estimation,as the beneficial supplement of the differentiation,and clinical stage to judge the prognosis of pancreatic cancer.

[Objective]To explore the effect and the possible mechanism of the proteasome inhibitor MG132 on acute T lympho?blastic leukemia cells.[Methods]The influence of different concentrations of MG132 in the viability and proliferation of CCRF-CEM was measured by MTS. Apoptosis rates of CCRF-CEM treated by MG132 were determined by flow cytometry. After being exposed to MG132,the protein levels of FOXO3a in cytoplasm and nucleus were analyzed by Western blotting. qRT-PCR was applied to detect the mRNA of FOXO3a and Puma in cells treated by MG132. Then CCRF-CEM was stably transfected with antisense FOXO3a using Lentivirus infection. We further investigated the effects of MG132 in FOXO3a-shRNA cells and elucidated the mechanisms of FOXO3a and Puma.[Results]MG132 inhibits the proliferation of CCRF-CEM,but has no cytotoxicity in peripheral blood mononu?clear cells(PBMC). Cellular apoptosis was induced in cells treated with MG132. At mRNA level,MG132 had no influence on FOXO3a,but increased the expression of Puma. However,MG132 promoted the expression of both FOXO3a and Puma at protein level. Interestingly,the expression of FOXO3a increased very little in cytoplasm. In FOXO3a-shRNA cells the expression of FOXO3a and Puma decreased at protein level. FOXO3a's knockdown attenuated the proliferation inhibition mediated by MG132.[Conclusion]MG132 inhibits the proliferation and promotes to apoptosis of CCRF-CEM. One of the mechanism is that MG132 inhib? its the degradation of FOXO3a,and then activates FOXO3a/Puma pathway.

Objectives:To investigate the prevalence and related factors of cardiovascular diseases (CVD) and psychological problems in Chinese science and technology workers.Methods:The investigation was organized and conducted by the Innovative and Development Institute of China Association of Senior Scientists and Technologists and Capital Medical University Affiliated Beijing Anzhen Hospital, and included science and technology workers from research institutions and medical institutions in China by random sampling methods through face-to-face and online questionnaire investigation from July 1, 2019 to March 31, 2021. Information including age, sex, work stress status, CVD history, sleep, depression, and anxiety were included in the questionnaire.Results:This survey included 14 552 subjects. Among them, 25.5% were suffered from CVD, 48.6% were with insomnia, 28.8% experienced depression/anxiety (including only depression, only anxiety, depression combined with anxiety), and 15.6% had CVD in combined with depression/anxiety. Taking those without CVD and depression/anxiety as reference group, multiple logistic regression analyses showed that work stress increased the risk of depression/anxiety in subjects without CVD (manageable work stress, OR=2.253, 95 %CI 1.583-3.206, overwhelming work stress OR=7.899, 95 %CI 5.094-12.250), and drinking increased the risk of CVD ( OR=1.978, 95 %CI 1.382-2.833). Moreover, overwhelming work stress ( OR=4.012, 95 %CI 2.515-6.399) and smoking ( OR=2.342, 95 %CI 1.603-3.421) increased the risk of depression/anxiety in subjects with CVD (all P<0.001). Conclusion:The high morbidities of depression/anxiety, CVD, and CVD in combination with depression/anxiety urge us to take actions to protect the heart and mental health of scientific and technological workers.