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Objective: Comparison of alkaloid and polysaccharides content in different parts of whole plant of wild aconitum in Nanyang, and to explore the medicinal value of aboveground part and fibrous root of wild aconitum in Nanyang. Methods: The contents of three monoester alkaloids, three diester alkaloids in wild aconitum, radix aconiti carmichaeli, fibrous root and aboveground parts in Nanyang were determined by HPLC method; The content of crude polysaccharides was determined by sulfuric-phenol method, crude polysaccharides content from different tissues of wild aconitum in Nanyang in different harvest time was compared, including wild aconitum in Nanyang, wild radix aconiti carmichaeli in Nanyang, fibrous root, aboveground part. Results: Among the 4 parts of the wild Aconitum in Nanyang, the contents of 3 mono ester alkaloids rang from high to low: wild aconitum in Nanyang＞ wild radix aconiti carmichaeli in Nanyang＞ fibrous root＞ aboveground part (P ＜ 0.05), the contents of three diester alkaloids rang from high to low: wild radix aconiti carmichaeli in Nanyang＞ fibrous root＞ wild aconitum in Nanyang＞ aboveground part (P ＜ 0.05), the order of total alkaloid content from high to low is: wild radix aconiti carmichaeli in Nanyang＞ fibrous root＞ wild aconitum in Nanyang＞ aboveground part (P ＜ 0.05), The content of crudepolysaccharides in different tissues of wild aconitum in Nanyang were in the sequence of wild radix aconiti carmichaeli in Nanyang＞ wild aconitum in Nanyang＞ aboveground part＞ fibrous root (P ＜ 0.05) . Conclusion: In this study, an attempt was made to explore the differences of 6 kind salkaloid content in different parts of whole plant of wild aconitum in Nanyang, which provided scientific basis for the medicinal value of the fibrous roots and the aboveground parts.
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Objective To study the relationship between serum homocysteine (Hey) level and firstever cardiocerebral vascular events in elderly hypertension-free population.Methods A total of 6124 hypertension-free patients aged 60-80 years admitted to our hospital for physical examination were randomly divided into control group (n=4122) with their Hcy≤13 μmol/L and experimental group (n=2002) with their Hcy＞13 μmol/L.Their serum Hcy levels were measured.The patients were followed up for 3 years,during which the incidence of first-ever cardiocerebral vascular events was recorded every 6 months and compared.Results No significant difference was found in sex,age,smoking,BMI,SBP,DBP,FBG and LDL-C between the two groups (P＞0.05).The serum Hcy level was significantly higher in experimental group than in control group (29.68±12.87 μmol/L vs 8.12 ± 4.36 μmol/L,P =0.001).The incidence of cardiocerebral vascular events,cerebral infarction and non-lethal myocardial infarction was significantly higher in experimental group than in control group at the end of 3-year follow-up period (18.8％ vs 10.2％,P=0.001;9.0％ vs 4.6％,P=0.025;5.8％ vs 3.0％,P=0.034).Multivariate Cox harzards regression analysis showed that serum Hcy level was an independent risk factor for first-ever cardiocerebral vascular events in elderly hypertension-free population (β=0.78,95 ％ CI:1.76-4.12,P =0.003).Conclusion Elevated serum Hcy level is a risk factor for first-ever cardiocerebral vascular events,especially for cerebral and myocardial infarction in elderly hypertension-free population.
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Objective To determine the population structure of Streptococcus pncumoniae isolates collected from infants with eye infections,including drug resistance,resistance genes, serotypes and molecular types.Methods The susceptibility of 39 isolates to 10 antibacterial agents was tested by K-B disk diffusion and Etest.Latex agglutination test was performed to determine the serotype of the strains,and PCR was carried out to detect macrolides resistance genes mefE and ermB.Molecular types of the 20 strains were determined by multilocus sequence typing (MLST).Results A total of 39 Streptococcus pneumoniae isolates were obtained,in which 30 (76.9％) were resistant to 3 or more antibacterial agents,and no vancomycin,penicillin or cefotaxime resistant strain was found.ermB gene was found in 33 strains and mefE gene was found in 4 strains.Twelve serotypes were found,and the most frequent serotypes were 19 (8/39) and 14 (4/39). Seventeen strains (43.6％) were covered in PCV7 vaccine. The international clone Taiwan19F-14 and Spain23F-1 were found by MLST. Conclusions Streptococcus pneumoniae isolates from infants with eye infections include international resistance clones.The distribution of serotype and molecular type are dispersed, and the clones are sporadic. The isolates are highly resistant to commonly used antibacterial agents.
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ObjectiveTo study the expression and potential significance of NET-1 in endometrial carcinoma.Methods106 specimens after operation were selected.All specimens were stained with H.E.and immunohistochemistry.ResultsThe expression of NET-1 immunoreactivity were different in normal endometrium(43.8％ ),endometrial hyperplasia ( 79.2％ ) and endometrial carcinoma ( 100％ ) ( x2 =11.88,P ＜ 0.01 ).The expression of NET-1 in endometrial carcinoma was significantly higher than that in normal endometrium and simple endometrial hyperplasia ( x2 =36.14,10.86,P ＜ 0.01 ).The expression of NET-1 in endometrial hyperplasia was significantly higher than that in normal endometrium ( x2 =5.29,P＜ 0.05 ).There was a correlation between the expression of NET-1 and degree of endometrial lesions ( r =0.355,P ＜0.01 ).The expression of NET-1 was relative with differentiation (x2 =11.04,P ＜0.01 ; r =0.558,P ＜0.01),stages(x2 =11.04,P ＜0.01; r =0.558,P ＜0.01),depth of myometrial invasion (x2 =15.90,P ＜0.01 ; r =0.479,P ＜0.01),with or without metastasis in lymph node ( Z =-3.74,P ＜0.01 ),menopause condition ( Z.=-2.60,P ＜0.01).ConclusionsNET-1 may play an important role in carcinogenesis and progression of endometrial carcinoma.It might be a marker of biological behavior and reference for endometrial carcinoma gene therapy.
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Objective To investigate the relationship between EphA2, EphrinAl and E-cadherin expressions and tumor stage and prognosis in pancreatic cancer. Method EphA2, EphrinAl and Ecadherin expressions were detected by immunohistochemistry in the tumor tissue and normal tissue specimens from 48 patients with primary pancreatic cancer. Results The expressions of EphA2 and EphrinAl were higher in the pancreatic carcinoma tissues than in the normal pancreatic tissues (P<0. 05). The E-cadherin expression was lower in the pancreatic cancer tissues than in the normal pancreatic tissues (P<0. 05). With decreasing histological differentiation, the expressions of EphA2 and EphrinAl in carcinoma tissues increased significantly (P<0. 05), while the E-cadherin expression decreased significantly (P<0. 05). The positive expressions of EphA2 and EphrinAl in the primary tumor significantly increased in stageⅢ and Ⅳ than in stage Ⅰ and Ⅱ (47. 9%vs 6. 25% , P<0. 05;47. 9% vs 8. 3%, P<0. 05), while the negative expression of E-cadherin was reversely correlated with these tumor stages (14. 6% vs 64. 6%, P<0. 05). Cox multivariate analysis showed that the clinical stage, EphA2 positive expression and E-cadherin negative expression were significantly associated with survival. Conclusion Abnormal expressions of EphA2, EphrinAl and E-cadherin were involved in the progression of pancreatic cancer and they were useful in predicting prognosis.
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OBJECTIVE To understand the urinary tract infections after cesarean section,the distribution of pathogenic strains,and drug resistance analysis in order to provide clinical treatment. METHODS The routine urine cultures of the 2652 case were identified and drug resistance was analyzed by K-B method. RESULTS From 458 isolated bacteria,Gram-negative bacilli were main,pathogen accounting for 80.13%,Escherichia coli and Klebsiella,accounted for 71.62% and 4.8% respectively;Gram-positive bacteria accounted for 14.41%,and fungi accounted for 3.71%. CONCLUSIONS G-bacteria in the urinary tract infection are in the absolute superiority;rational use of antibiotics to effectively control the urinary tract infections and avoid drug-resistant strains produceing is especially critical.