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Objective:To investigate the relationship between plasma fibrinogen (FBG) level and p53 protein expression of tumor tissue in breast cancer, and to study the relationship between the parameters of plasma FBG level and p53 protein expression in tumor tissue and the prognosis of breast cancer.Methods:A total of 177 breast cancer patients who underwent surgery in the Second Affiliated Hospital of Hainan Medical University between Jan. 2012 and Oct. 2016 were included in the study. The data, including the general clinicopathological characteristics, the expression of p53 protein with immumohistochemical (IHC) staining, and plasma FBG level within 1 week before surgery, were collected. Chi-square test was used to analyze the relationship between the different levels of plasma FBG and the parameters of general clinicopathological characteristics and p53 protein, and binary Logistic regression was used for multivariate analysis. Kaplan-meier survival analysis and COX regression analysis were used for univariate analysis and multivariate analysis of IDFS, respectively.Results:Univariate analysis showed that plasma FBG>2.75 g/L had significant positive correlation with age>50 and positive p53 expression in tumor tissue ( P values were <0.001 and 0.006, respectively) . Multivariate analysis showed that positive p53 expression in tumor tissue ( OR 2.256, 95% CI 1.192 to 4.271, P<0.001) and age>50 years ( OR 3.712, 95% CI 1.967 to 7.002, P<0.001) were independent correlation factors for plasma FBG>2.75 g/L. Kaplan-Meier survival analysis results showed that the aged>50 years, T>2 cm, lymph node metastasis, Ⅲ stage, plasma FBG>2.75 g/L, positive p53 expression in tumor tissue were adverse prognostic factors of IDFS. COX regression analysis results showed that plasma FBG>2.75 g/L ( HR 6.226, 95% CI 3.863 to 10.033, P<0.001) , positive p53 expression in tumor tissue ( HR 1.864, 95% CI 1.133 to 3.066, P=0.014) and Ⅲ stage ( HR 10.382, 95% CI 5.942 to 18.141, P<0.001) were adverse prognostic factors of IDFS, and adjuvant endocrine therapy ( HR 0.427, 95% CI 0.275 to 0.663, P<0.001) was a favourable prognostic factor for IDFS. Conclusions:The expression of p53 protein was significantly correlated with high plasma FBG level in breast cancer. Both p53 protein expression and high plasma FBG level are associated with poor prognosis of breast cancer. On the basis of traditional pathological prognostic indicators, the detection of plasma FBG and p53 protein in tumor tissue may contribute to increase the prognostic information in breast cancer.
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β-Cyclodextrin-N-vinyl-2-pyrrolidone (CDM-NVP) copolymer was prepared by free radical chain reaction of N-vinyl-2-pyrrolidone (NVP) and β-CD maleate (CDM) with γ-ray as initiator.The synthesis conditions of CDM-NVP polymer were as follows: mass ratio of CDM to NVP was 1∶0.7 (CDM 3.6 g and NVP 2.52 g), irradiation dosage was 4 kGy, and DMF aqueous solution (50%, V/V) was set at 20 mL.Under the synthesis conditions, the yield of CDM-NVP was 84% and the weight-average molecular weight was 20 kD.The natamycin (NM) and carbendazim (MBC) could form stable inclusion complexes with CDM-NVP copolymer, and the solubility and fungicidal activity of the complexes were investigated.The stability constant of NM·CDM-NVP and MBC·CDM-NVP complexes at 303 K were 12, 988.54 L/mol and 865.94 L/mol, respectively.The complexes were characterized using phase solubility diagrams, nuclear magnetic resonance (NMR) spectra and ultraviolet (UV) spectra.The analysis of the biological activities of these two complexes indicated that they possessed enhancing fungicidal activities compared to NM and MBC alone.
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Objective To investigate the difference of two models of respiratory failure in preterm infants with nasal continuous positive airway pressure(nCPAP)and nasal biphasic positive airway pressure (nBiPAP).Methods Comparative analysis of 81cases of premature infants with respiratory failure requi-ring respiratory support was needed.They were applied nCPAP and nBiPAP ventilation mode treatment.The use of breathing machine and total oxygen inhalation time,the number of treatment failures,the PEEP param-eters of the ventilator,the total number of recent complications and secondary infections were compared.Re-sults In the nBiPAP treatment group,the average time of noninvasive ventilation was(96.34±31.5)h,the total time of oxygen inhalation was(10.11 ±9.39)d,3cases of treatment failure,the incidence of severe complications was 5.56%(2/36),PEEP (4.08±0.73)cmH2O (1cmH2O =0.098kPa ).In the nCPAP group,the average time of noninvasive ventilation was(114.14±41.69)h,the total time of oxygen inhalation was(17.53±15.96)d,15cases were failed,the incidence of severe complications was 15.56%(7/45), PEEP(5.11±1.01)cmH2O.There were significant differences between the two groups(P﹤0.05).But there were no significant differences in infection control and patent ductus arteriosus (P ﹥0.05).Conclusion nBiPAP as one of the first choice treatment for premature infants with respiratory failure significantly better than nCPAP,as soon as the proper use can avoid invasive ventilation.
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Objective To analyze the voluntary blood donors of Shaoguan city in recent 10 years HIV infection status and distri‐bution characteristics ,and to take effective prevention and control measures ,in order to reduce the risk of HIV infection through blood transfusion .Methods HIV screening test in the early by the reagent of two different manufacturers ,from 2005 to 2014 vol‐untary blood donors specimens of 265 771 doses of blood donation in Shaoguan ,and early screening positive specimens confirmed by Center for Disease Control of Shaoguan .Results The voluntary blood donors of Shaoguan in the 10 years that initial screening test anti‐HIV positive were 310 cases ,and 35 cases confirmed positive;The confirmed positive rate was 1 .317/10 000;The HIV infec‐tion rate in 2012 was highest (2 .867/10 000) and there were 9 cases ,which was significant difference (P<0 .05) .The district of the maximum rate was New Fengxian ,which was 5 .369/10 000 ,and different districts had significant difference (P<0 .05) .The epidemiology survey about HIV infections found that male were 30 cases(85 .71% ) ,which was significantly more than women;By age distribution ,most HIV infections were 18 to 35 years old young adults ,which accounted 26 cases(74 .29% ) .Married and un‐married people infected respectively accounted 28 .57% and 71 .43% .The occupations of HIV infections were scattered with farm‐ers ,staffers ,the service industry ,cadres in the majority .The HIV infection rate with low education was relative higher ,which had some relationship to educational level .The residents and the non‐residents infected respectively accouted 71 .43% and 28 .57% ;Blood donors for the first time of HIV infections were 24 cases (68 .57% ) .Blood donors for the second time of HIV infections were 11 cases (31 .43% );Other virus co‐infection respectively were 2 HBV infections ,1 HCV infection and 3 syphilis infections .The route of transmission was mainly through sexual transmission that was mainly heterosexual transmission ,which was 33 cases (94 .58% ) .Conclusion The voluntary blood donors of Shaoguan with HIV is on the rise ,and give priority to with male youths spread through heterosexual sex .It should be pay high attention to by the government ,society and blood stations ,and strengthen the propaganda work of AIDS prevention and control checks ,and minimize the risk of HIV transmission by blood transfusion in or‐der to guarantee the safety of clinical blood transfusion .
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A method to determine phytolith-occluded carbon ( PhytOC) was explored. Sodium hydroxide solution was used to dissolve the silicon compound(SiO2 ·nH2O) which occluding on the carbon, and then potassium dichromate-sulphuric acid solution was used to oxidize the released organic carbon. The concentration of Gr3+produced from the reaction was measured by spectrophotometry with its absorbance at 590 nm wavelength. The organic carbon concentration was calculated based on the amounts of potassium dichromate consumed. This analytical method was verified well accuracy and repeatability by running standard addition and recovery experiments. It has the advantages of low carbon loss, easy to operate, low cost;and hardly any influence to body health, as compared with acid dissolution-Elementar Vario MAX CN method. The results obtained from this method have a good correlation with these determined by Elementar Vario MAX CN ( Germany) .
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Objective To study the distribution of genotypes of hepatitis C virus in Guizhou and its relationship between infec-tious route of genotype and age ,gender was analyzed .Methods Serum specimens in this study were obtained from 198 patients , whose anti-HCV and HCV RNA were positive .A reverse transcriptase PCR(RT nested-PCR)assay using conserved primers de-duced from the core-envelope 1(C-E1)region of the hepatitis C virus(HCV)genome was employed to amplify a 474-nucleotide-long fragment .Phylogenetic analysis of the C-E1 sequences was conducted by direct sequencing of the RT-PCR products and alignment with published HCV subtypes in GenBank .Subtypes of the samples were determined by nucleotide sequencing followed by composi-tion of a phylogenetic tree .Results Among the 198 patients surveyed ,genotype 1a was detected in 4 cases(2 .0% ) ,genotype 1b in 71 cases(35 .9% ) ,genotype 2a in 9 cases(4 .6% ) ,genotype 3a in 29 cases(14 .7% ) ,genotype 3b in 47 cases(23 .7% ) ,genotype 6 a in 37 cases(18 .7% )and genotype 6d in 1 cases(0 .5% ) .Genotype distribution on gender had no statistical significance(P>0 .05) , and its distribution on people with different ages had statistical significance(P<0 .05) ,and its distribution on patients with different infectious routes was significantly different(P<0 .05) .Conclusion The major genotypes of HCV are 1b ,3b ,6a and 3a in Guizhou , and genotype 1a is predominant .Genotypes 1a ,2a and 6d exist too .Genotypes of patients infected with HCV are related to their in-fectious routes ,and the HCV genotypes are in a great variety .
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The antifungal activity of fluconazole and its two derivatives was tested with ketoconazole as a control by the method of cultivation. The preliminary results show that fluconazole had wider antimicrobial spectra and stronger antifungal activities than its two derivatives and ketoconazole.
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In order to search for a more potent and less toxic antifungal agent, five novel sulconazole analogues were synthesized by changing 1-imidazolyl and p-chlorobenzyl in sulconazole structure. The results of preliminary biological tests show that analogues Ⅰ and Ⅱ possess more potent antifungal activities and wider antifungal spectra than sulconazole.