Objective　To study β-AR density relativity between porcine myocardial tissue and circulating lymphocytes and clinical significance ．Methods　 48 porcines(seven months old），were　taken a few of myocardial tissue and peripheral blood．Assay　β-AR density with radioactive isotope to study the　relativity．Results　Scatter plot of β-AR　density　 circulating lymphocytes and myocardial tissue showed　 linear　Correlation（r＝0.845，P＜0.001　Y＝0.002527X＋0.726）．Conclusion　There　was　obvious　 correlation on β-AR　density in circulating lymphocytes and myocardial membrane　of pigs．Determination of β-AR　density　in　circulating lymphocytes can reflect alteration of that in myocardial tissue．Therefore，we can use it to monitor and investigate　self-induced and drug-induced β-AR changes．

Extract from Ruppia rostellata Koch was divided into three parts: petroleum ether part, CH2Cl2 and water-soluble part. Each part of them was studied upon it's antioxidation. The results indicated that the active compounds were only in the water-soluble part. In soybean oil, the antioxidation of water-soluble part was stronger than that of BHA and V. E. , In lard, the antioxidation of water-solubile part was a little weaker than that of BHA and V.E.

Objective To compare the setup errors of the negative pressure vacuum air cushion (vacuum bag) and the Orfit body foam fixator (Orfit frame) in radiotherapy for cervical cancer.Methods A total of 40 patients receiving three-dimensional radiotherapy for cervical cancer were enrolled in this study and equally and randomly divided into vacuum bag group and Orfit frame group.And the two groups were divided into Orfit-1 group, Orfit-2 group, vacuum-1 group, and vacuum-2 group according to the treatment course.The Orfit-1 group and vacuum-1 group were the data in the first 12 treatments, while the Orfit-2 group and vacuum-2 group were the data in the following 13 treatments.A cone-beam computed tomography scan was performed before each treatment to analyze setup error and then the body position was corrected to start the treatment.Comparison of continuous data between groups was made by paired t-test, while comparison of categorical data was made by chi-square test.Results There was a significant difference in the setup error in y-axis direction between the Orfit-1 group and the Orfit-2 group (P=0.003) and the setup error in r-axis direction between the vacuum-1 group and the vacuum-2 group (P=0.013).There were no significant differences in the setup errors in four directions (x-axis, y-axis, z-axis, and r-axis) between the Orfit-1 group and the vacuum-1 group (P>0.05).There were significant differences in the setup errors in y-axis and z-axis directions between the Orfit-2 group and the vacuum-2 group (P=0.007;P=0.001).Conclusions The Orfit frame and the vacuum bag have their own advantages and disadvantages in the fixation of body position in radiotherapy for cervical cancer.The setup error can be improved by long vacuum bags, ultrasound bladder capacity scanner, image-guided radiotherapy, or sectional radiotherapy plan.

Objective Since there are significant variation of the dietary structure recent years in China,it is necessary to re-investigate the fatty acid composition of human breast milk for the presentation of the latest data of fatty acid composition in China. Methods Using a gas chromatography GC-2010,the composition of fatty acids was detected in the human colostrums and the mature breast milk(consecutively from postnatal day 1 to day 7 and from postnatal day 42)obtained from 62 healthy postpartum women in Shanghai and Chongqing,two big cities of China,from Jan to July,2008. Results The level of total fatty acid(TFA)tended to increase significantly from the colostrums to the mature breast milk. No significant difference in the level of TFA was found between two cities. The significantly higher monounsaturates(MUFA)level(44.06% vs. 33.85%,P ＜ 0.01)and lower linoleic acid(LA,C18 : 2n-6)level(18.43% vs. 27.62%,P ＜ 0.01)of the mature breast milk were observed in Chongqing women compared with those in Shanghai women. The docosahexenoic acid(DHA)level of the mature breast milk in Shanghai women was significantly higher than that in Chongqing women(0.41% vs. 0.29%,P ＜ 0.01). There was no significant difference in the level of arachidonic acid(AA,C20 : 4n-6)between two cities. Conclusions The fatty acid composition in human breast milk tends to vary with the extension of the lactation. There is significant difference in the fatty acid compositions in human breast milk between Shanghai and Chongqing owing to different dietary habits in the different regions of China.

Objective:To study performed of develop a mice model of allergic diseases induced by crude extractings from populus pollen.Methods: A total of 60 BALB/c mice were divided randomly into there groups:normal control group,Albumin Egg(OVA) group and populus pollen model group with 20 in each.Mices were repeatedly sensitized by intraperitoneal injections of OVA or crude populus pollen extract every 5 d for four doses.Five days after the last sensitization,mices were repeatedly challenged by once daily antigen from 21-25 d.The changes of inflammatory cells in bronchoalveolar lavage fluid(BALF) were stained with hematoxylin and eosin(HE) to evaluate the degree of allergic inflammation.PAS staining was used to observe the secretion of airway mucus;The changes of the nasal mucosas and lungs of mice were stained with HE to evaluate the degree of allergic inflammation.And the average optical density of IL-4 and IFN-γ positive cells in lung tissue was measured by immunohistochemistry.The total IgE in the serum was also measured by enzyme-linked immunoassay(ELISA).Results: Compared with the mice in normal control group,those in OVA group and model group developed obvious allergic inflammation in the nasal mucosas and lungs,and increased airway mucus secretion.The number of inflammatory cells including eosinophil and neutrophils markedly increased in BALF smear.The average optical density of IL-4 positive cells in lung tissue was all increased in OVA group and model group compared with those in normal control group,and the average optical density of IFN-γ in lung tissue was on the contrary.The total IgE in the serum were all increased in OVA group and model group compared with those in normal control group,and the IFN-γ in the serum was significantly reduced in OVA group and model group compared with those in normal control group.Conclusion: Taken together,crude populus pollen extract can successfully induce a mice model of allergic diseases.This model is a useful tool in studying the mechanisms of allergic disease.

Objective:To investigate the effect of zinc supplementation on the expression profile of zinc transporters mRNA in placenta and small intestine of pregnant rats.Method:Eighteen pregnant SD rats were randomly divided into normal control(ZC)and zinc supplement group(ZS).Rats in ZC group drank deionized distilled water while those in ZS group drank water supplemented with zinc of 1.26 mmol/L.Placenta and small intestine were taken at gestational day 9.5 and 17.5,respectively.The expression of ZnT1,2,5 and 6 mRNA was examined by RT-PCR.Results:At gestational D9.5,the expression of placental ZnT1,2 and small intestinal ZnT1,2,6 mRNA was up-regulated,and placental ZnT5 mRNA down-regulated by dietary zinc supplementation.Dietary zinc intake had no effect on the expression of placental ZnT6 and small intestinal ZT5 mRNA.At gestational D17.5,the expression of placental ZnT5 and 6 mRNA was up-regulated by dietary zinc supplementation,and dietary zinc had no effect on the expression of placental and small intestinal ZnT1,2 mRNA.The expression of ZnT5 mRNA at gestational D17.5 in both groups was not detectable.Conclusion:Dietary zinc supplementation during pregnancy has significant effect on the expression profile of ZnT 1,2,5 and 6mRNA in placenta and small intestine of pregnant rats.

Aim To obtain recombinant human IL-24 secretorily expressed in Pichia pastoris,and study the activity of inducing tumor cells apoptosis of this N-glycosylation protein. Methods By the recombinant plasmid ?/pUC18,the confirmed IL-24 gene was inserted between the sites of BamH Ⅰ and EcoR Ⅰ of expression plasmid pPIC9K. The recombinant plasmid IL-24/pPIC9K was transformed into P. pastoris strain GS115. Yeast transformants were induced for expression of recombinant human IL-24 with methanol. The desired protein was identified with Tricine-SDS-PAGE and Western blot.Amount of IL-24 was assayed with ELISA and the glycosylation was analyzed by PNGase F.The activity of inducing tumor cells apoptosis was confirmed by MTT assay and Hoechst assay in vitro.Results Recombinant expression plasmid IL-24/pPIC9K was successfully constructed. 5 transformants were screened with G418 and PCR. Induced with methanol,the expression level of IL-24 was (81.31?14.46) mg?L-1 at flask fermentation,and 70 % IL-24 generated N-glycosylation.Recombinant IL-24 induced apoptosis in MCF-7 cells,but not in NHLF.Conclusion The secretorily expression of the N-glycosylation IL-24 protein in P. pastoris and the study of inducing tumor cells apoptosis lay the foundation for the further study of molecular mechanism of IL-24 on anti-tumors and the potential application.

Objective To investigate the correlation between fatigue and coping strategies among peritoneal dialysis patients,to improve their health consciousness and reduce the fatigue.Methods A total 107 patients were surveyed with general data questionnaire,Multidimensional Fatigue Symptom Inventory-Short Form( MFSI-SF) ,and Medical Coping Modes Questionnaire,MCMQ.Results The score of fatigue was (83.32 ±1.54) points,which indicated the fatigue remained in high level.Scores from high to low were dialysis≥5years,dialysis<1year and 1year≤dialysis<5years.Patients mainly took the coping style with positive face.Pearson correlation analysis showed that fatigue was negatively correlated withface(r=-0.300,P<0.05),while it was positively correlated with withdrawand yield(r=0.227,0.300,all P<0.05).Conclusion Patiens should be encouraged to actively face the disease,pay more attention to their own state of dialysis and improve the effect of drain,reduce fatigue,then to reply for both mind and body health.

Objective To observe the effect of Kangfuxin liquid combined with mupirocin on exit -site granulation tissue hyperplasia in peritoneal dialysis patients. Methods From January 2012 to December 2017, 35 peritoneal dialysis patients with exit-site granulation tissue hyperplasia in the People's Hospital of Huadu District were selected and randomly assigned into treatment group (15 cases) and control group(20 cases). The control group was given conventional treatment, the treatment group received a sterile dressing moistened with Kangfuxin liquid. Before and after treatment,the exit-site granulation tissue outcome and the incidence of complications were recorded and compared. Results The recovery time of the control group was (8. 58 ± 1. 36)d,which was longer than (3. 43 ± 0. 85)d of the treatment group (t=3. 57,P<0. 05). Exit-site exudation was found in 3 patients of the control group. No complications were observed in the treatment group. Conclusion Kangfuxin liquid combined with mupiro-cin can shorter the recovery time of exit-site granulation tissue hyperplasia in peritoneal dialysis patients,and reduce the side effect,which is worthy of clinical application.

OBJECTIVETo find out the optimal nitrogen application level of Desmodium styracifolium.

METHODA field experiment using randomized block design was carried out to study the effects of 5 nitrogen application levels (150, 187.5, 225.0, 262.5 and 300.0 kg x hm(-2)) on yield and active component content of D. styracifolium.

RESULTNitrogen application could increase the yield and contents of polysaccharide, total flavonoides and total saponins of D. styracifolium. However, the enhancing extent of the active component content and the yield were not always significant with the increase of nitrogen level. In which, the yield were not significantly different among the nitrogen application levels of 225.0, 262.5, 300.0 kg x hm(-2) the polysaccharide content was no significantly difference among the nitrogen application levels of 225.0, 262. 5 and 300.0 kg x hm(-2), the total flavonoides content under the nitrogen level of 300.0 kg x hm(-2) was significantly lower than that of 150.0 kg hm(-2) (P < 0.01), and the total saponins content under the nitrogen level of 300.0 kg x hm(-2) was no significant difference compared with that of 262.5 kg x hm(-2).

CONCLUSIONThe optimal nitrogen application level of D. styracifolium was 225.0-262.5 kg x hm(-2).

Fabaceae ; chemistry ; metabolism ; Fertilizers ; analysis ; Flavonoids ; analysis ; metabolism ; Nitrogen ; analysis ; metabolism ; Plant Extracts ; analysis ; metabolism ; Polysaccharides ; analysis ; metabolism ; Soil ; analysis