Animals ; Cardiovascular Diseases ; therapy ; China ; Combined Modality Therapy ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; Phytotherapy

Objective Establish rabbit VX2 soft tissue tumor model,and treat it with percutaneous ethanol injection(PEI)under the guidance of magnetic resonance imaging.Make ready for the therapeutic evaluation with functional magnetic resonance imaging. Methods Fifteen healthy New Zealand white rabbits were included in this study.0.2 mL tumor tissue suspensions were injected into the rabbits’posterior limb.14 days later,all rabbits were underwent conventional MRI examination.PET were performed to all the tumors under the guidance of MRI in the next day of the examination.T2 WI was used as guidance and monitoring means.MR com-patible puncture needle with lateral hole was stabed into the lesion center,and inj ected anhydrous ethanol according to the volume of tumors’diameter (1 mL/cm )slowly.the tumors signal characteristics,morphological feature and pathological feature were ob-served pre and post-operation.Results All of the 1 5 rabbits were established soft tissue tumor model successfully;the success rate is 100%.The tumors were oval or round,3-4 cm in diam.MRI scanning showed low signal on T1 WI and high signal on T2 WI be-fore PEI.PEI was performed to all the tumors under the guidance of MR successfully with 3.5 mL ethanol injected into the tumors in average.T2 WI could monitor the ethanol in dispersion and distribution within the tumors clearly.Histologically,tumors were composed of large,uniform,oval/round cells arranged in solid nests which was intensive in the periphery of tumors.Necrosis tissue was apparent in the center of the tumors.10 days after operation,most tissue in the periphery of tumors was coagulative necrosis , only a few tumor cells left.Ranges of necrosis in the tumors center were obviously increased compared with pre-operation.Conclusion Rabbit VX2 tumor of soft tissue model is suitable for the therapeutic evaluation of tumor .It is an animal model which has the characteristic of simple to operate and high rate of suc-cessful.MR T2 WI can monitor the ethanol in dispersion and distribution within the tumors clearly.It is a good guidance and monitoring imaging method of tumor ablation.

Objective To recognize and identify the arginase(ARG)gene of Schistosoma japonicum(Sj),and to study its protection potential as a vaccine.Methods The 5'-end of the ARG gene from the Sj cercariae cDNA library was amplified by nested-PCR and the sequence was identified by bioinformatics.The complete coding sequence(CDS)was cloned into pET30a(+)vector,and a recombinant SjARG protein(rSjARG)was expressed,purified and used to raise antibodies.ARG's activity as an enzyme was tested by ornithine-ninhydrin reaction.Western blotting was used to compare the immunologic characteristics of rSjARG with that of the native one in Sj adult worm.Indirect immunofluorescence assay was used to immunolocalize it.For evaluating the protection potential of rSjARG,mice were immunized by the recombinant protein and challenged by cercariae of S.japonicum.Results The CDS length of the SjARG novel gene was identified as 1095bp.rSjARG showed enzyme activity and the same immunologic characteristics with the native arginase in adult worm.SjARG located in the genital organ and gut of both sexes.The worm reduction rate and egg reduction rate in rSjARG group were 55.8% and 48.8% respectively,higher than that of the rSj26GST group(28.6% and 6.89% respectively).Conclusion SjARG gene was identified,which shows a higher protection than the Sj26GST.

Research on the association between maternal periodontal disease and the risk of preeclampsia has generated inconsistent results. This meta-analysis was conducted to evaluate the association between maternal periodontal disease and the risk of preeclampsia. A literature search of PubMed and Embase was performed to identify relevant papers published before March 2013. Only observational studies that assessed maternal periodontal disease and the risk of preeclampsia were selected. Patients' periodontal status was examined at different time points during pregnancy or after delivery (at 14-32 weeks of gestation, within 48 h prior to or within 5 days after delivery). Pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were calculated for cases and controls. Cases were defined as women with concurrent hypertension and proteinuria after 20 weeks of gestation. Eleven studies involving 1118 women with preeclampsia and 2798 women without preeclampsia were identified and analyzed. Women with periodontal disease before 32 weeks of gestation had a 3.69-fold higher risk of developing preeclampsia than their counterparts without periodontal disease (OR=3.69; 95% CI=2.58-5.27). Periodontal disease within 48 h prior to delivery was associated with a 2.68-fold higher risk of preeclampsia (OR=2.68; 95% CI=1.39-5.18). Pregnant women with periodontal disease within 5 days after delivery had a 2.22-fold higher risk of preeclampsia than women without periodontal disease (OR=2.22; 95% CI=1.16-4.27). In conclusion, this meta-analysis suggests that maternal periodontal disease is an independent predictor of preeclampsia.

Objective To evaluate the development of immature oocytes after freezing-thawing by conventional cryopreservation method for mature oocytes.Methods Immature oocytes were collected from stimulated ovaries of intracytoplasmic sperm injection(ICSI)cycles.Immature oocytes were in vitro matured directly or after slow freezing-fast thawing and immunostained for tubulin and chromatin and at last visualized by confocal microscopy.Results No statistical difference was found in maturity rate between freezing groups and the controls.There was a statistically significant increase in abnormalities of chromosome(23.7% vs. 50%)and spindle(28.9% vs.53.9%)in the GV freezing group compared with the GV control(P

High-speed counter-current chromatography (HSCCC) was used to high performance separate and prepare lignans from Schisandrae chinensis fructus. The solvent system is composed of n-hexane-ethyl acetate-methanol-water (9 : 1 : 5 : 5) and n-hexane-ethyl acetate-methanol-water (9 : 1 : 9 : 5), speed is at 900 r.min-1, and flow rate is at 2.0 mL.min-1. Five fractions from Schisandrae chinensis fructus extract were separated and prepared with one HSCCC process. They were identified as schisandrin, gomisin J, schisandrol B, schisantherin A and deoxyschizandrin by electrospray ionization-multiple tandem mass spectrometry (ESI-MSn), respectively. Their contents were obtained in 98.74%, 94.32%, 99.53%, 94.23% and 98.68% by ultra high performance liquid chromatography (UPLC), separately. The rapid and simple method can be applied for the preparation of lignans from Schisandrae chinensis fructus.
Countercurrent Distribution ; Cyclooctanes ; chemistry ; isolation & purification ; Dioxoles ; chemistry ; isolation & purification ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Fruit ; chemistry ; Lignans ; chemistry ; isolation & purification ; Molecular Structure ; Plants, Medicinal ; chemistry ; Polycyclic Compounds ; chemistry ; isolation & purification ; Schisandra ; chemistry ; Spectrometry, Mass, Electrospray Ionization ; Tandem Mass Spectrometry

Adenocarcinoma, Clear Cell ; pathology ; Angiomyolipoma ; pathology ; Female ; Follow-Up Studies ; Humans ; Kidney Neoplasms ; pathology ; Male ; Middle Aged ; Neoplasms, Multiple Primary ; pathology

AIM: To analyze the clinical features of children ocular penetrating trauma,and hope to effectively assist to prevent pediatric ocular trauma METHODS: The data of 145 cases (145 eyes) with ocular penetrating trauma,hospitalized in Xijing Hospital from January 2012 to December 2016,were collected and retrospectively analyzed.All the data of injury factors and environment,age and gender of patients,lesions,treatment and prognosis were detailed studied.RESULTS: In all the 145 pediatric patients with ocular penetrating trauma,accounted for 8.5% of all the ocular trauma patients,there were 95 cases of male,and 50 of female.Penetrating injuries mainly occurred in age of 3-9.The main injuries of ocular perforating in children were scissors,and sharp objects of wooden and iron.The wound was often located in the cornea or the anterior sclera.Traumatic cataract,vitreous hemorrhage and endophthalmitis were the common complications.The visual acuity was severely damaged,and 90 cases (62.1%) of the children recovered better than 0.1 after effective treatment.CONCLUSION: The visual function of pediatric p0atients was seriously threatened after penetrating injuries.However,the damage of vision and the rate of blindness can be reduced effectively after timely and correct diagnosis and treatment.It is the most important that active and effective prevention in keep children away from penetrating injuries.

AIM: To investigate the apoptosis and molecular mechanism of human hepatocellular carcinoma HepG2 cells induced by ginsenoside Rh4.METHODS: Human hepatocellular carcinoma HepG2 cells were treated with ginsenoside Rh4 at doses of 10, 20 and 40 μmol/L, and the inhibitory effect of ginsenoside Rh4 on HepG2 cell viability was measured by MTT assay.The apoptotic rate of HepG2 cells was analyzed by flow cytometry.The morphological changes of the HepG2 cells were observed by Hoechst 33258 and TUNEL staining.The expression of apoptosis-related proteins Bax, Bcl-2, caspase-3 and caspase-9 was determined by Western blot.RESULTS: Ginsenoside Rh4 promoted apoptosis of HepG2 cells in a dose-dependent manner.TUNEL and Hoechst 33258 staining showed that the cells appeared obvious shrinking, swelling and rupture after treated with ginsenoside Rh4 for 24 h.The results of Western blot showed that with the increasing concentrations of ginsenoside Rh4, the expression of pro-apoptotic proteins Bax, cleaved caspase-3 and caspase-9 increased, while anti-apoptotic protein Bcl-2 decreased gradually.CONCLUSION: Ginsenoside Rh4 induces apoptosis of human hepatocellular carcinoma HepG2 cells, and the main mechanism may be related to down-regulation of Bcl-2 and up-regulation of Bax, cleaved caspase-3, and caspase-9.

Objective To establish a general health information construction effect evaluation model for overall as-sessment of health information construction effect .Methods Domestic and foreign health information construction effect evaluation models were systematically analyzed by bibliometric analysis , comparative analysis , inductive and deductive method,repectively.The classic health information construction effect models were integrated.Results The health information construction effect evaluation model was established from the technique-organization man-agement-operation supportangle .Conclusion Thehealth information construction effects include technique effect, organization mangement effect, and operation effect.Thegeneral health information construction effect evaluation model is established, which includes 7 primary indexes and 20 secondaey indexes.