BACKGROUND: The essential component of Plumbago zeylanica Linn is plumbagin, which plays a role in anti-leukemia, antibiosis, antifertility, as well as cardiovascular. OBJECTIVE: To investigate the effects of Plumbago zeylanica Linn on the healing process of experimental rabbit fracture. DESIGN, TIME AND SETTING: Randomized control experiment of animal was performed at the Department of Pharmacology, Guilin Medical College between December 2006 and February 2007. MATERIALS: Eight New Zealand rabbits, 80 to 85-day-old, weighing 2.1-2.5 kg, half male and half female. METHODS: Eight rabbits were randomly divided into the control and experimental groups, with 4 animals in each group. Under sterile conditions, the experimental bone fracture model of rabbit was created by making a longitudinal incision in the medial of the middle portion of right foreleg, cutting off a point-foot radius with bone clamp, and suturing the incision. The rabbits in the experimental group were treated externally with the extraction of Plumbago zeylanica Linn in 50% of ethanol, twice a day for 15 days. The sodium chloride was administrated into rabbits in the control group. MAIN OUTCOME MEASURES: The serum alkaline phosphatase (S-ALP), Ca2+, P3+, K+, Na+, Cl-, liberation and total calcium of the rabbit were measured at 15 and 30 days after drug administration, X-ray of the bones were performed at the fracture healing. RESULTS: Compared with the control group, the fracture healing of the experimental group was faster, and the serum examinations showed that the serum Ca2+ levels of the experimental group was significantly increased by Plumbago zeylanica Linn, there had significantly differences between prior to and after drug administration (P

The plysical and chemical characteristics of recombinant human GM - CSF (rhGM - CSF) were studied separatly. rhGM - CSF was treated by GdHCl, reduced by DTT, and the disulfide bond was blocked by idoacetamide. The results showed that the samples aren' t homogeneous in UV absorption spectrum and RP-HPLC analysis after treatment by DTT. There was no remarkable differences in the results of the analysis of SDS-PAGE electrophoresis and western blot between treated and untreated rhGM - CSF samples. The effect of GdHCl on GM-CSF was reversible in all above tests; In peptide mapping analysis, the digestion of the samples with blocked disulfide bond by CNBr and protease is more complete than that without any treatment.

It was found that the proliferation of mice L7712 leukemic cells in vitro was markedly inhibited by 5 mg/L GP1 and VP10 The inhib itory rate increased with the incubation time. At a concentration of 0 .04-20mg/L, the mitotic index ( MI ) of GP1 group increased, but the MI of VP16 group decreased. After L7712 cells were treated with GP, 5 mg/L for 12 h the MI reached the highest point which was 8 times as high as that of the control, at the same time, the MI of VP16 ( 5 mg/L) group was about one-third of that of the control. The result of the combination of GP1 with VP16 showed that VP16 could antagonize the effect of GP on MI of L7712 cells. After being treated by GP1 and VP18 for 24 h, serious damage of L7712 cells could be observed. Both drugs inhibited the incorporation of (3H) TdR into DNA of S180, ascitic hepatoma (AH), L1210 and L7712 cells incubated for 24 h. It was further observed that S180 and L7712 cells were more sensitive than other cells to both drugs.

ObjectiveTo observe the effection of different interventions of group B streptococcus (GBS) infection in gestation period.MethodsOne hundred and seventeen cases with GBS infection were obtained from 1885 pregnant women,who were got routine prenatal examination at 34 to 37 weeks of pregnancy,and drug seeitivity test of secretions which were taken from under paragraph 1/3 of vagina,and divided into treatment group (91 cases) and untreatment group (26 cases).The treatment group was divided into treatment group one (47 cases) and treatment group two (44 cases).Treatment group one was treated with oral antibiotics for 7 days after diagnosis,treatment group one and two were treated with postpartum antibiotics intravenous infusion once every 4 hours in labor.Comparison of maternal and fetal outcomes.ResultsThe GBS infection rate was 6.2％ (117/1885).The morbidity of premature delivery,premature rupture of membrane and neonatal infection of treatment group [ 5.5％ ( 5/91 ),13.2％ ( 12/91 ),5.5％ (5/91 ) ]were lower than those of untreatment group [ 19.2％(5/26),30.8％(8/26),23.1％(6/26) ](P ＜ 0.05).The morbidity of premature dehvery and premature rupture of membrane of treatment group one[ 0,6.4％ (3/47)]were lower than those of treatment group two[ 11.4％ (5/44),20.5％ (9/44)](P ＜ 0.05).Conclusion Anti-GBS treatment can improve the outcomes of mothers and infants,especially early anti-GBS treatment during the period of pregnancy.

Objective:To study the correlation among lipoprotein (a) [Lp (a)] ,its gene polymorphism and degenera‐tive calcific aortic valve disease (DCAVD) .Methods :From Feb 2010 to Jan 2014 ,a total of 164 DCAVD cases trea‐ted in our hospital were enrolled as DCAVD group ,another 164 healthy subjects undergoing physical examination in the same period were selected as normal control group .Relationship among Lp (a) level ,its gene polymorphism and aortic valvular calcification was compared and analyzed ,and Logistic regression analysis was used to analyze in‐dependent risk factors of DCAVD . Results :Lp (a ) gene possesses four point mutations in population , namely rs10455872 ,rs6415084 ,rs3798221 and rs7770628. In DCAVD group ,Lp (a) level of AG genotype was significantly higher than that of AA genotype [ (325.5 ± 108.2) mg/L vs .(211.7 ± 135.4) mg/L] in rs10455872 gene pheno‐type ,Lp (a) level of CC+TT genotype was significantly higher than that of CT genotype [ (287.9 ± 144.1) mg/L vs .(240.7 ± 127.2) mg/L] in rs6415084 gene phenotype ,and Lp (a) level of TT+ CC genotype was significantly higher than that of CT genotype [(304.1 ± 124.1) mg/L vs .(226.8 ± 101.6) mg/L] in rs7770628 gene phenotype , P<0.05 or <0.01 ;patient′s percentage of valvular calcification of AG genotype was significantly higher than that of AA genotype (90.0% vs .61.7% ) in rs10455872 , patients percentage of valvular calcification of CC +TT geno‐type was significantly higher than that of CT genotype (83.8% vs .66.7% ) in rs6415084 ,and patient′s percentage of valvular calcification of TT+CC genotype was significantly higher than that of CT genotype (87.3% vs .63.4% ) in rs7770628 , P<0.05 or <0.01. Logistic regression analysis indicated that rs10455872 ,rs6415084 ,rs7770628 and Lp (a) level were independent risk factors for valvular calcification of DCAVD (OR=1.67~2.31 , P<0.01 all) . Conclusion :Lp (a) gene polymorphism (rs10455872 ,rs6415084 and rs7770628) and plasma Lp (a) level are signifi‐cantly correlated to valvular calcification of DCAVD ,which may be susceptible genes for DCAVD occurrence .

To explore the anti-tumor effect of immunotherapy with recombinant protein vaccine based on FGFR-1 of chicken (cFR-1) in a mouse Meth A fibrosarcoma model, tumor volume and survival rate of the mice were observed at a 3-day interval. Microvessel density (MVD) was detected by immunohistochemistry. Auto-antibodies against self-FGFR-1 were detected by Western blotting and ELISA, respectively. The anti-FGFR-1 antibody-producing B cells (APBCs) were detected by enzyme-linked immunospot (ELISPOT) assay. Eighteen days after inoculation of tumor cells, the tumor volume was significantly smaller in cFR-1-immunized group than in mouse FGFR-1 (mFR-1) immunized group and normal saline (NS) control group (P<0.05), and the survival time was significantly longer in cFR-1-immunized group than in the control groups (P<0.01). MVD was significantly lower in cFR-1-immunized group than in mFR-1-immunized group and NS group (16.8+/-5.6 vs 64.6+/-1.8 and 59.6+/-8.7, P<0.01). Antibodies against self-FGFR-1 were found in mFR-1-immunized group, the major antibody subclasses were IgG1 and IgG2b. Compared with the two control groups, the numbers of APBCs in cFR-1-immunized group were significantly increased (P<0.01) These results demonstrated that the cFR-1-related anti-angiogenesis protein vaccine could induce the production of auto-antibodies against self-FGFR-1, which futher inhibit angiogenesis and growth of solid tumor.

The hydrophilicity of the normal decoction pieces (NDP) of Indigo Naturalis is not good, therefore, it is not suit for decoctions. In this paper, powder modification technology is used and some NDP and alcohol are ground together in the vibromill to prepare the hydrophilic decoction pieces (HDP) of Indigo Naturalis. Initially, the properties of NDP, ultrafine decoction pieces (UDP) and HDP are compared, the hydrophilicity of UDP was promoted slightly, that of HDP is promoted dramatically. Then, three batches of Indigo Naturalis are prepared to HDP separately, but there is no obvious difference in the contact angle. Furthermore, the size distribution, surface area and micro-shape of HDP are bigger than that of UDP and smaller than NDP. The contents of indigo and indirubin in three decoction pieces are the same, as well as the species of inorganic substance, although there is a little difference in the proportion of five inorganic substances. The fact suggests the change of physical state and the qualitative and quantitative change of organism and inorganic substances are not the main factors to influence the hydrophilicity. In addition, hydroxyl, methylene and methyl can be identified at the wavenumber of 3 356 cm(-1) and 1 461 cm(-1) in infrared spectrum; the content of alcohol in HDP is 0.67% measured by gas chromatogram. The stability of HDP in the heating condition is studied, the fact suggests the hydrophilic effect of HDP at 40 degrees C is relatively stable. All above research suggests that the alcohol is the main factor to influence the hydrophilicity and maybe the intermolecular force which fixed alcohol molecule on the surface of Indigo Naturalis is the basic principle to produce the hydrophilicity.

Objective To investigate the expression of unfolded protein response (UPR) gene glucose regulated protein 78(GRP78) and X-box binding protein 1(XBP1) in esophageal squamous cell carcinoma, its effect on activation of the endoplasmic reticulum stress (ERS) and its mechanism in the growth of esophageal squamous cell carcinoma. Methods The expressions of GRP78 and XBP1 were detected by immunohistochemistry in 30 samples of esophageal squamous cell carcinoma and 30 samples of normal esophageal squamous epithelium. The correlation between expressions of both proteins and prognosis was analyzed. Results GRP78 positive rate was 83.3 %(25/30) in esophageal carcinoma, while the proportion was 20.0 %(6/30) in normal esophageal (χ2=25.833, P<0.05). XBP1 positive rate was 70.0 % (21/30) in esophageal carcinoma, while the proportion was 26.7%(8/30) in normal esophageal(χ2=20.872, P<0.05). The positive rates of GRP78 and XBP1 in invasive muscular layer of esophageal squamous cell carcinoma were significantly higher than those in invasive mucous layer. Conclusion GRP78 and XBP1 are highly expressed in esophageal squamous cell carcinoma, which may involve the occurrence and development of the esophageal carcinoma.

OBJECTIVESTo explore the effect of lead acetate on the apoptosis of rat brain neural cells and the relationship between the apoptosis and the bcl-2 as well as bax gene expression.

METHODSLead acetate was given to SD rats by intraperitoneal injection for 5 days at the dosage of 25, 50 and l00 mg/kg body weight respectively. The rates of apoptosis and the expression of bcl-2 (Bcl-2) and bax (Bax) in neural cells from cerebral cortex, hippocampus and carebellum were measured respectively by flow cytometry (FCM).

RESULTSThe rates of apoptosis in neural cells from cerebral cortex, hippocampus and cerebellum in every treatment group were significantly higher than that of control (P < 0.01), and there was a significant dose-response relationship (r = 0.998, 0.989 and 0.997 respectively). The expression of bcl-2 was significantly decreased, whereas bax was significantly increased, in neural cells from cerebral cortex, hippocampus and cerebellum in every lead acetate treatment group (FI) compared with the control group, and there was a significant dose-response relationship (r = -0.886, -0.787 and -0.832 respectively for bcl-2, r = 0.971, 0.988 and 0.991 respectively for bax). The value of Bcl-2/Bax in every treatment group decreased significantly compared with control, and there was a nice dose-response relationship (r = -0.863, -0.829 and -0.999, respectively). Correlation analysis showed that rates of apoptosis were inversely correlated with the expression of bcl-2 (r = -0.750, -0.509, and -0.667, respectively), whereas positively correlated with the expression of bax (r = 0.748, 0.56l, and 0.668, respectively). And there were inverse correlations between the rates of apoptosis and Bcl-2/Bax expression.

CONCLUSIONLead may induce apoptosis in rat brain neural cells through the down regulation of bcl-2 and the up regulation of bax gene expression.

Animals ; Apoptosis ; Brain ; cytology ; drug effects ; metabolism ; Female ; Male ; Organometallic Compounds ; administration & dosage ; pharmacology ; Proto-Oncogene Proteins ; biosynthesis ; Proto-Oncogene Proteins c-bcl-2 ; biosynthesis ; Rats ; Rats, Sprague-Dawley ; bcl-2-Associated X Protein

Humans ; Liver Neoplasms ; pathology ; Perivascular Epithelioid Cell Neoplasms ; pathology