ABSTRACT
Objective: To provide a basis for the rational use of Sophora japonica resources through comprehensive evaluation of different tissues and organs. Methods: The contents of rutin, narcissin, quercetin, isorhamnetin and heavy metals in the samples were detected by HPLC and ICP-OES. The Fe3+ reducing ability, DPPH free radical (DPPH•), ABTS free radical (ABTS•+) scavenging ability and total antioxidant capacity (FRAP) were detected by colorimetry. Then, cluster analysis (CA) and principal component analysis (PCA) were conducted by software of SPSS 20.0. Results: The total contents of four flavonoids in different tissues and organs of S. japonica were arranged as follows: flower buds > flowers > flower axis > leaves > branches. The order of antioxidant capacities was as follows: flower buds > flowers > flower axis > leaves > branches, which were positively correlated with the total contents of four flavonoids. The contents of five heavy metal elements in flowers and flower buds were within the limitation of the Green standards of medicinal plants and preparations for foreign trade and economy, while the Cd element in some leaves, flower axis and branches was beyond the standard. Flowers and flower buds were clustered into one type by CA, while flower axis, leaves and branches were clustered into another category. The two principal components (PC1 and PC2) were extracted from the eight variables by PCA, PC1 showed significant differences among different tissues and organs, and PC2 values showed large differences among batches. Conclusion: The flowers and flower buds of S. japonica showed an excellent qualities, including safe doses of heavy metals, rich flavonoids and outstanding antioxidant activities. In addition, the flower axis and leaves also contained high flavonoids and exhibited strong antioxidant activities, which had the value of further development and utilization.
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Objective To study the effect of MRI on the enhancement of normal prostate, benign prostatic hyperplasia and prostate cancer by pharmacokinetic model. Methods A total of 80 patients with prostate cancer diagnosed by pathological examination in Lishui Central Hospital from February 2015 to August 2016 were selected as the subjects in this study. 1.5T superconducting magnetic resonance imaging was used, the serial needle was FMPSPGR for enhanced scan of the prostate of the patient, interlayer was 2 mm and the thickness was 7 mm, continuous scanning was performed 35 times, after the elbow vein indwelling catheter, the Gd-DTPA was injected rapidly at the beginning of the scan according to the 0.1 mmol/kg dose. By scanning data, inspection data transfer and workstation for patients with scanning results were analyzed using two room pharmacokinetic model calculation of ROI, the patients of normal prostate peripheral zone, benign prostatic hyperplasia and prostate cancer index, maximum enhancement of contrast agent distribution index, exchange rate, contrast absorption amplitude. Results After a series of calculation and analysis, the maximum enhancement index of prostate cancer, the distribution index of contrast agent, the contrast agent exchange rate and the contrast agent absorption index of prostate cancer were the highest. The maximum enhancement index, contrast agent distribution index, contrast agent exchange rate and contrast agent absorption index were significantly lower than those of prostate cancer, The difference was statistically significant (P<0.05). The indexes of normal prostate were significantly lower than those of benign prostatic hyperplasia (BPH) and prostate cancer (P<0.05). Conclusion The application of drug evaluation pharmacokinetic model of prostate MRI in different tissues to enhancing effect on patients with prostate tumor and non tumor tissue blood supply characteristics more accurately describe and differentiate, to improve the accuracy of identification and diagnosis of prostate in clinical treatment in a certain extent, with further clinical promotion and application significance.
ABSTRACT
ABSTRACT: The aim of this study was to identify the Leishmania species in Jaciara dogs; visceral leishmaniasis (VL) is endemic in the county of Jaciara. A comparison among the PCR results for the spleen, bone marrow, skin and blood of 101 dogs with VL-reactive serum were evaluated. Spleen tissue showed the highest detection percentage, followed by bone marrow. In 97 (96.04%) dogs, the Leishmania DNA detected was confirmed as L. chagasi, emphasizing the importance of aetiological identifications in sympatric areas with other trypanosomatids.
RESUMO: Com o objetivo de identificar a espécie de Leishmania circulante em cães de Jaciara, município endêmico para leishmaniose visceral (LV), e comparar pela PCR a detecção em baço, medula óssea, pele e sangue, foram avaliados 101 cães sororreagentes para LV. O baço foi o tecido que apresentou melhor percentual de detecção, seguido da medula óssea. Em 97 (96,04%) cães, foi detectado DNA de Leishmania, confirmada como L. chagasi, ressaltando a relevância da identificação etiológica em área de simpatria com outros tripanosomatídeos.