Objective:To investigate the effects of sorafenib on hypoxia inducible factor-1 (HIF-1) and vascular endothelial growth factor (VEGF) levels and recurrence in patients with intrahepatic cholangiocarcinoma with microvascular invasion.Methods:Ninety-two patients with intrahepatic cholangiocarcinoma who received treatment in Yiwu Central Hospital between November 2013 and November 2019 were included in this study. They were randomly assigned to undergo either conventional basic treatment (control group, n = 46) or conventional basic treatment and sorafenib treatment (study group, n = 46). Clinical efficacy, the incidence of adverse reactions and recurrence rate were compared between the two groups. Before and after treatment, HIF-1, alpha fetoprotein (AFP) and VEGF levels were also compared between the two groups. Results:After treatment, total effective rate in the study group was significantly higher than that in the control group [63.04% (29 /46) vs. 28.26% (13/46), χ2 = 11.215, P < 0.05]. After treatment, HIF-1, AFP and VEGF levels in each group were significantly lower than those before treatment (all P > 0.05). After treatment, HIF-1 [(165.23 ± 39.67) pg/mL], AFP [(109.16 ± 67.31) ng/mL] and VEGF [(297.28 ± 42.41) pg/mL] levels in the study group were significantly lower than those in the control group [(205.56 ± 40.23) pg/mL, (235.17 ± 106.41) ng/mL, (365.16 ± 40.91) pg/mL, t = 4.841, 6.788, 7.813, all P < 0.05]. There was no significant difference in the incidence of adverse reactions between the two groups ( P > 0.05). Six-month follow-up revealed that the incidence of recurrence in the study group was significantly lower than that in the control group ( χ2 = 4.792, P < 0.05). Conclusion:Sorafenib can reduce the HIF-1, AFP and VEGF levels in patients with intrahepatic cholangiocarcinoma with microvascular invasion, improve the clinical efficacy, decrease the incidence of recurrence, but cannot increase the incidence of adverse reactions.

Objective To study the influence of different routes of keyhole limpet hemocyanin ( KLH) immuniza-tion on the T-cell-dependent antibody response in mice.Methods SPF Kunming mice were divided into four groups: the intravenous injection group, subcutaneous injection group, intraperitoneal injection group and control group.Each mouse was injected 200 μg KLH intravenously, subcutaneously or intraperitoneally daily for consecutive 10 days, respectively. Mice in the control group were given solvent injection only.Serum concentration of IgG stimulated by KLH antigen was measured 7 days after the last dosing.Spleen was isolated to calculate the organ coefficient and examined by pathology u-sing hematoxylin and eosin staining.Results Intravenously, subcutaneously and intraperitoneally administered KLH stimu-lated the generation of secondary lymphoid follicles and germinal center to varying degrees, B cell apoptosis, increased a-mount of cells in the marginal zone and other pathological changes were observed in the spleen.Intravenous and intraperito-neal administration of KLH led to more pronounced pathological changes compared with that in the subcutaneous injection group.All of the three administration routes of KLH induced generation of IgG antibody, significantly higher than that in the control group (P<0.05).Intravenous injection of KLH generated the highest concentration of IgG and organ coefficient among the three administration routes ( P<0.05) .Conclusions Different immunization routes do affect the production of IgG antibody, organ coefficient and pathological changes in the spleen, and these differences should be taken into consider-ation when analyzing the T cell dependent antibody response in mice.

OBJECTIVE:To optimize the extraction technology of Bushen huoxue capsules. METHODS:Central composite de-sign-response surface method was used to optimize the extraction technology with the amount of water and boiling time as main fac-tors using normalized value of the contents of icariin and salvianolic acid B,the yield of dry extract as index. Validation test was al-so conducted. RESULTS:The optimal extraction technology was as follows as 15-fold water,reflux extracting for 75 min,extract-ing for 2 times. The deviation of measured value and predicted value was 0.000 3% in validation test. CONCLUSIONS:The cen-tral composite design-response surface method can be used to optimize the extraction technology of Bushen huoxue capsules with good prediction,and the technology is simple and stable.

This paper was mainly on pesticide degrading microorganisms. The major pesticide degrading bacteria were Pseudomonas, Bacillus, Flavobacterium, Alcaligenes, Arthrobacter, etc. The major pesticide degrading fungi were Aspergillus,Pinicielium, Rhizopus, Trichoderma, Fusarium, etc. The major pesticide degrading actinomycetes were Nocardia, Streptomyces, etc.

Objective To compare coagulation data measured with domestic produced and imported coagulation testing solutions on SD rat and human by testing prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time(TT), fibrinogen(FIB).Methods Blood samples were obtained from SPF SD rat and human .Domestic produced and imported coagulation testing solutions were applied to test PT , APTT, TT, and FIB.Results Compared to rat data measured with imported coagulation testing solution , data measured with domestic produced coagulation testing solution of PT, APTT, FIB was significantly higher (P<0.05), while, data of TT was statistically lower(P<0.05), and there was no obvious difference in human blood coagulation .Conclusion The data measured with different coagulation testing solution varies on SD rat , so the laboratories are required to establish reference data according to different products .

Equipment Design ; Facial Injuries ; therapy ; First Aid ; instrumentation

Objective Heart transplantation is an effective treatment of end-stage heart diseases and extending the time of donor heart preservation helps to make up for the shortage of donor hearts. This study was to investigate whether high-pressured mixed gas ( HPMG) of carbon monoxide and oxygen could prolong the time of donor heart preservation and its mechanisms. Methods Forty-eight C57BL/6 male mice aged 4-6 weeks were randomly divided in-to four groups of equal number:control ( the donor heart isolated but not transplanted) , immediate transplantation ( the donor heart transplanted right after isolated) , HTK-preservation ( the donor heart preserved in histidine-tryptophan-ketoglutarate solution for 24 hours after isolated, and HPMG preservation ( the donor heart preserved in an HPMG chamber with the oxygen partial pressure of 3200 hPa and carbon monoxide partial pressure of 800 hPa for 24 hours after isolated) .Another 36 recipient mice aged 6-8 weeks were randomly assigned to receive the donor heart immediately after harvested (n=12), preserved in HTK solution (n=12), or preserved in HPMG (n=12).At 2 hours after transplantation, the status of heart re-beating and cardiac function were compared among different groups of recipient mice.At 24 hours, tissues were taken from the transplanted hearts for examination of pathologic changes by HE stai-ning, detection of the apoptosis of cardiac cells by TUNEL, and determination of the expressions of microtubule-associated protein 1 light chain 3 -Ⅱ(LC3-Ⅱ) and B cell lymphoma/leukemia-2 (Bcl-2) by Western blot. Resul ts The re-beating rates of the imme-diately transplanted and HPMG-preserved hearts were significantly higher than that of the HTK-preserved ones (P<0.05).At 2 hours after transplantation, the cardiac function scores were 2.5 (2.0-2.9), 0.8 (0.5-1.0), and 4.5 (4.0-4.5) in the immediate implantation, HPMG-preservation and HTK-preservation groups respectively, with statistically significant differences between any two groups (P<0.05).The expressions of LC3-Ⅱand Bcl-2 were 2.06 ±0.29 and 0.87 ±0.18 in the HPMG-preserved heart recipients and 1.24 ±0.20 and 2.07 ±0.32 in the immediately transplanted heart recipients, both higher than 0.13 ±0.03 and 0.19 ±0.02 in the controls and 0.16 ±0.06 and 0.26 ±0.08 in the HTK-preserved heart recipients (P<0.05), the Bcl-2 higher in the HTK-pre-served heart recipients than in the controls (P<0.05), and the LC3-Ⅱ expression higher in the HPMG-preserved heart recipients than in the immediately transplanted heart recipients (P<0.05).HE staining showed that cell edema and inflammatory cell infiltration were more obvious in the HPMG-preserved heart recipients than in the controls and immediately transplanted heart recipients but less obvious than in the HTK-preserved heart recipients.The rate of cell apoptosis was dramatically increased in the HPMG-and HTK-pre-served heart recipients ([5.04 ±1.77]%and [26.72 ±5.23]%) in comparison with the controls ([1.08 ±0.56]%) (P<0.01) and immediately transplanted heart recipients ([2.13 ±1.71]%) (P<0.01) but decreased in the HPMG as compared with the HTK-preserved heart recipients (P<0.01). Conclusion High-pressured mixed gas preservation can reduce cold ischemia-reperfu-sion injury of the donor heart, which may be associated with its promotion of autophagy, provision of energy to cells, and apoptosis of cardiocytes in the donor heart.

Objective To explore the clinical features and the gene mutations in MECP 2 duplication syndrome. Methods The clinical data of a child with developmental retardation and hypophrenia accompanied with respiratory tract infection was analyzed retrospectively. Microarray analysis technique was used to detect the genes in the patient and his family. The pertinent literature was reviewed. Results A 1-year and 7-month old boy was found to have hypotonia, developmental delay, and recurrent respiratory tract infections after birth. Microarray analysis showed a duplication of 441.88kb in Xq28 area and diagnosis of MECP2 duplication syndrome was confirmed. His grandmother, mother, and two aunts were found duplication of 441.73-441.88kb in Xq28 area, all of whom were MECP2’s female carrier. Conclusions The improvement of chromosome chip technology inspection is helpful to the early diagnosis of MECP2 duplication syndrome.

Objective To analyse the difference of effects of different tidal volume mechanical ventilation strategies in infants with severe congenital heart disease after curative.Methods Sixty-eight cases were chosen from CICU of Anhui Provincial Children's Hospital during Oct 2010 to Jan 2012.Thirty-two cases in A group were used in ventilation strategy by lower tidal volumes (6 ～ 10 ml/kg),36 cases in B group were used in ventilation strategy by larger tidal volumes (10 ～ 15 ml/kg).The time of mechanical ventilation,duration of ICU stay and postoperative complications were compared between the two groups.Results The time of mechanical ventilation of B group was shorter than that of A group [(8.6 ± 2.5) d vs (11.7 ± 3.2) d],duration of ICU stay of B group was shorter than that of A group [(11.4 ± 4.8) d vs (15.6 ± 5.7) d],there were statistical differences between two groups(P ＜ 0.0l).The incidence rate of ventilator associated pneumonia and pneumothorax were 6.3％ and 3.1％ in A group,which were 5.6％ and 5.6％ in B group,there were no statistical differences between two groups (P ＞ 0.05).Conclusion The effects of mechanical ventilation with larger tidal volumes is better than that with lower tidal volumes in infants with congenital heart disease postoperative therapy.

The incidence of colorectal cancer is high among the elderly. Traditional Chinese medicine (TCM) has been widely used in the treatment for colorectal cancer of old people. However, controlled trials with large sample size evaluating the effect of TCM are rare.