Objective To explore the dynamic changes of D-dimers during pregnancy and early puerperium (within 3 days postpartum). Methods A retrospective study was performed among 8 367 healthy women who had term singleton delivery in Women′s Hospital, School of Medicine, Zhejiang University from January 2007 to December 2014. D-dimers concentrations during pregnancy and early puerprium of all the cases were collected. Data of 21 065 D-dimers tests were assigned to 5 groups according to the time of sampling, including early pregnancy (≤12 gestation weeks), middle pregnancy (12-28 gestation weeks), late pregnancy (>28 gestation weeks), 1 postpartum (within 48 hours postpartum) and 2 postpartum (48-72 hours postpartum). The D-dimers concentrations in different groups were compared. The effect of delivery mode on D-dimers of early pureperium was analyzed. The correlation between D-dimers and the thromboembolic disease was also explored. In this study, Student′s t-test and Wilcoxon rank sum test were used for statistical analysis. D-dimers concentration≤0.5 mg/L was used as the normal range. Results (1) D-dimers concentrations during pregnancy were higher than the non-pregnant women (P<0.01), but there was no statistical difference between early pregnancy and late pregnancy (P=0.820). D-dimers concentration in the 1 postpartum group was higher than that of early pregnancy group or late pregnancy group (P<0.01). But in the 2 postpartum group, it was lower than early pregnancy, late pregnancy and 1 postpartum groups. (2)D-dimers in cesarean section cases was significantly higher than in vaginal delivery cases in each period of pregnancy and early pueprium.(3)The 95%CI of D-dimers in early pregnancy, late pregnancy, 48 hours after vaginal delivery, 48-72 hours after vaginal delivery, ≤48 hours after cesarean section, 48-72 hours after cesarean section were 0.58-8.28, 0.47-11.52, 1.04-9.59, 0.87-5.22, 1.07-11.58 and 1.00-6.23 mg/L, respectively.(4)In 6 cases with thromboembolic disease, D-dimers was 6.89-19.89 mg/L, with the mean value of 13.66 mg/L. It was significantly higher than normal range. In 3 cases, all after cesarean section, with lower extremity vein thrombosis within 48 hours postpartum, the D-dimers concentrations, 9.77, 8.65 and 6.89 mg/L respectively, were in the 95%CI of the study population after cesarean section. Conclusions D-dimers concentration of 0.5 mg/L is not suitable for venous thromboembolism screening during pregnancy. D-dimers concentration in pregnancy and early puerprium is higher than non-pregnancy. It increases in the very early period postpartum and decreases with time. D-dimers should not be a routine screening test to exclude thromboembolic disease in pregnant women without high risk factors and clinical manifestation of thromboembolic disease.

Objective To study effects of yinlingⅠon cell viability and oxidative injury of lead-exposed cell.Methods After lead exposure Vero cell was treated with yinlingⅠof different concentrations.The cell viablitity was measured by methyl thiaxiolyl tetrazolium(MTT) method and the superoxide dismutase(SOD)and malondialdehyde(MDA) activity in cell suspensions were measured.Results When Vero cell lived in 125 ?mol/L lead acetate surrounding,the MDA concentration increased,but the viability of cell and the SOD content in the Vero cell suspension decreased.YinlingⅠcould increase the viability of lead-exposed cell during a certain extent;in the most non-toxicity concentration yinlingⅠcould elevate the SOD content in the Vero cell suspension,reduced the MDA concentration and resisting lead toxication in vitro.Conclusion YinlingⅠhas the protective effects on the cell viability and oxidative injury of lead-exposed cell.

Objective To observe the changes of hospitalization rates of patients with goiter in Lianyungang City in a coastal area with mild iodine deficiency in 2002-2010.Methods Medical reports of patients with goiter from county hospitals were studied at county level with a retrospective method.In accordance with the National Iodized Salt Monitoring Program,nine townships(towns) were taken from each county (district) [total of five counties(districts)]; four villages were selected from each township (town); salt samples were taken from eight households in each village,and salt iodine was determined using direct titration of sodium thiosulfate.Results The hospitalization rate of patient with goiter increased from 1.87/10 million in 2002 to 7.05/10 million in 2009,and then fluctuated to 6.06/10 million in 2010(x2 =281.91,P＜ 0.01).Among them,female's hospitalization rates were significantly higher than that of male 's(The variation range of x2 values were 35.23-116.04,all P ＜ 0.01),and the hospitalization rates of people over the age of 40 years were significantly higher than that of people less than 40 years of age(The variation range of x2 values were 33.04-263.04,all P ＜ 0.01),and the hospitalization rates of people in urban areas were significantly higher than that of people in rural areas (The variation range of x2 values were 18.35-140.00,all P ＜ 0.01).Average salt iodine was 27.61-30.13 mg/kg in 2002-2010.The coverage rate of iodized salt and the consumption rate of qualified iodized salt both increased year by year (x2 =183.75,211.99,P ＜ 0.01).There was a positive correlation between hospitalization rate of patient with goiter and coverage rate of iodized salt(spearman correlation coefficient was 0.83,P ＜ 0.05).There was a positive correlation between hospitalization rate of patient with goiter and the consumption rate of qualified iodized salt too (spearman correlation coefficient was 0.93,P ＜ 0.05).Conclusions In Lianyungang City,the hospitalization rate of patient with goiter,the coverage rate of iodized salt and the consumption rate of qualified iodized salt all show upward trend in 2002-2010.The relationship among them is worth further study.

The reverse problem of Electrical impedance tomography(EIT) is a highly ill-posed problem.It is concluded that spatial prior information could improve the final image quality.This paper proposes a new method for obtaining prior information.By this method,the inspected cross-section contour and internal structure for EIT can be achieved.

Objective:To explore the relationship between YKL-40 and the proliferation of breast cancer and its mechanism.Methods:The expression of YKL-40 in breast cancer MCF-7 cells was detected by immunofluorescence assay.Fluorescence microscope was used to observe the conversion efficiency,and Real-time PCR was used to screen the most effective YKL-40 siRNA.Expression levels of PI3K,P-PI3K,AKT,P-AKT of the PI3K/AKT pathway associated proteins was test by Western blot.At the same time,MTT and flow cytometry were validated by YKL-40 siRNA treatment of human breast cancer MCF-7 ceils,the differences of 24h,48h and 72h groups of cell proliferation ability and cell cycle.Result:MCF-7 cell express YKL-40 protein,mainly located in the cytoplasm.Real-time PCR show that siRNA01,siRNA02,siRNA03 compared with NC group YKL-40 gene silencing effect is remarkable.Among of them the strongest silencing effect is siRNA02 (P＜0.01),Western blot show the experimental group than the control group,Total PI3K and AKT remain unchanged while P-PI3K,P-AKT expression decreased (P＜0.05).In the experimental group,the number of G1 cells in the control group was increased (P＜0.01),while the S phase cells decreased (P＜0.01).MTT results showed that the experimental group compared with the control group,the proliferation ability is decreased(P＜0.01).Conclusions This study suggests that YKL-40 can be used as the upstream regulatory factor of PI3K/AKT signaling pathway and affect the process of cell cycle in breast cancer,and then regulate the proliferation of breast cancer,YKL-40 may be a crucial target for the treatment of breast cancer.

The secondary development of traditional Chinese medicines (TCMs) is an important content of TCM modernization process, as well as an important path for developing new TCM drugs. Under the guidance of the system theory, in response to the lack of the overall guideline and practical methods for the secondary development of TCMs at present, we introduced the overall thought of the secondary development of major TCM varieties, as well as the roles and contents of clinical research, pharmacology and pharmaceutics in the process of the secondary development of major TCM varieties, so as to provide systematic strategies and methods for the development of major TCM varieties.
Biomedical Research ; Drug Discovery ; methods ; Humans ; Medicine, Chinese Traditional ; methods ; Pharmacology

The secondary development of major traditional Chinese medicine varieties is one of important links during the modernization, scientification and standardization of traditional Chinese medicines. How to accurately and effectively identify the pharmacodynamic material basis of original formulae becomes the primary problem in the secondary development, as well as the bottleneck in the modernization development of traditional Chinese medicines. On the basis of the existing experimental methods, and according to the study thought that the multi-component and complex effects of traditional Chinese medicine components need to combine multi-disciplinary methods and technologies, we propose the study thought of the material basis of secondary development of major traditional Chinese medicine varieties based on the combination of in vivo and in vitro experiments. It is believed that studies on material basis needs three links, namely identification, screening and verification, and in vivo and in vitro study method corresponding to each link is mutually complemented and verified. Finally, the accurate and reliable material basis is selected. This thought provides reference for the secondary development of major traditional Chinese medicine varieties and studies on compound material basis.
Absorption ; Animals ; Drug Discovery ; methods ; Humans ; Medicine, Chinese Traditional ; methods

Antigens, CD20 ; metabolism ; Carcinoma in Situ ; classification ; diagnosis ; metabolism ; pathology ; Diagnosis, Differential ; Humans ; Hyaluronan Receptors ; metabolism ; Hyperplasia ; Precancerous Conditions ; diagnosis ; metabolism ; pathology ; Tumor Suppressor Protein p53 ; metabolism ; Urinary Bladder ; metabolism ; pathology ; Urinary Bladder Neoplasms ; classification ; diagnosis ; metabolism ; pathology ; Urothelium ; metabolism ; pathology

Objective To investigate the impact of metabolic syndrome(MS)on clinicopathology of IgA nephropathy(IgAN). Methods A total of 118 IgAN patients complicated with MS were enrolled in the study as IgAN-MS group. Then 118 IgAN patients of same age arrange without MS were randomly selected as IgAN-non-MS group.A comparative analysis of clinical and pathological data between these two groups was performed. Results The urine protein, serum creatinine, body mass index, mean arterial pressure, serum triglyceride, fasting blood glucose and serum uric acid in IgAN-MS group were all significantly higher than those in IgAN-non-MS group(P<0.05 or P<0.01). The serum HDL-C level in IgAN-MS group was significantly lower than that in IgAN-non-MS group(P<0.01). The percentages of patient with hypertension, abnormal glucose metabolism or abnormal lipid metabolism in IgAN-MS group were also significantly higher than those in IgAN-non-MS group(P <0.01). The glomerular and tubulointerstitial pathological changes in IgAN-MS group were significantly more severe than those in IgAN-non-MS group(P<0.01). There were significantly positive correlations between MS and urinary protein quantity, serum creatinine level, and glomerular damage index or tubulointerstitial damage index(P<0.01)by Spearman rank correlation analysis. Conclusion MS may be an important risk factor of IgAN progression.

Objective To observe the effect of hot spring medicated bath regimen which is guided by the theory of constitution distinction of TCM.Methods According to the standard of Constitution Classification and Decision of TCM which is published by China Association of Chinese Medicine to assess the standard-compliant volunteers,then make the volunteers have physical-chemical indexes checked and hot spring medicated bath taken.At last,re-assess the constitution of the individual and re-check the indexes.Results After the drug bath,the levels of total cholesterol (TCH),low-density lipoprotein (LDL-C),thyroid stimulating factor(TSH),and IL-1 of the patients who were both yang deficiency and phlegm-dampness decreased significantly (t values were 2.093,2.045,2.092,and 2.13,respectively; P＜0.05); the levels of high-density lipoprotein (HDL-C),cortisol,and free thyroxine T4 (fT4) increased significantly (t values were 3.731,2.571,and 3.027,respectively; P＜0.05) ; the pulse rate raised obviously (t=8.323,P＜0.01) ; both of the systolic (t=4.405,P＜0.01) and diastolic (t=2.782,P＜0.01)blood pressure dropped.After the drug bath,the levels of fT4 and IL-1 of the patients who were yang deficiency significantly increased (t values were 3.709 and 3.339,respectively; P＜0.01); the waist circumference reduced (t=2.831,P＜0.01),the pulse rate rised (t=9.605,P＜0.01) ; both of the systolic (t=5.281,P＜0.01)and diastolic (t=6.573,P＜0.01)blood pressure dropped.After the drug bath,the levels of pulse rate and diastolic blood pressure of the patients who are phlegm-dampness changed significantly:the pulse rate raised (t=4.702,P＜0.01),the diastolic blood pressure dropped(t=6.096,P＜ 0.01).As the effect analysis showed,the Ridit data of the criterion group which consists of summation was 0.5.Compared with the criterion group,the total effective rate of the yang deficiency group was 74.1％,which was statistically significant (R=0.55,P＜0.05).The total effective rate of the phiegm-dampness group was 81.8％,which had no statistical significance (R=0.48,P＞0.05).The total effective rate of the both yang deficiency and phlegm-dampness group was 77.4％,which was statistically significant (R=0.46,P＜0.05).Conclusion The Wuyi hot spring medicated bath regiman is helpful to the constitution type of yang deficient and phlegm-dampness,which can help warming yang and benefiting qi,living blood links contact us nourishing the skin,reducing blood fat,lowering blood pressure,improving the immune function and so on.