1.Determination of 2,3,5,4′-Tetrahydroxystilbene-?-O-?-D-Glucoside in Radix polygoni multiflori preparata by HPLC
Yun LIU ; Dong ZHANG ; Hua YUAN
Chinese Traditional Patent Medicine 1992;0(11):-
AIM: To establish HPLC for determination of 2,3,5,4′tetrahydroxystilbene-?-O-?-D-glucoside in Radix polygoni multiflori preparata. METHODS: The column was diamonsil C_(18)(5 ?m,4.6 mm?250 mm).The mobile phase was CH_3CN-CH_3OH-H_2O(10∶20∶70) and ?=320 nm.The flow rate was 1.5 ml/min. RESULTS: The linearity was in the range of 0.0253-0.3542 ?g.The average recovery and RSD were 99.34% and 0.49%,respectively. CONCLUSION: The method is simple,precise and reproduciable and can be used for determination of 2,3,5,4′-tetrahydroxystilbene-?-O-?-D-glucoside in Radix polygoni multiflori preparata effectively.
2.Modulatoin of Macrophage-Mediated Cytotoxic Activity Thibitory Effect of a Mycotoxin, Fusarin C, on Macrophage Activation in Mice
Zhong-Yun DONG ; You-Hui ZHANG ;
Chinese Journal of Immunology 1985;0(06):-
The effect of Fusarin C, a new mutagen extracted from Fusarium moniliforme,on murine peritoneal M? activation by measuring M?-mediated MTC ADCC and CS,Fusarin C could inhibit M? activation by both MAF and FDP. The inhibitory effect was dose-and time-dependent and the curves of dose-and time-response were similar in all three assays. There is, however, apparent difference in Fusarin C dose and time needed to induce significant in hibition among these assays. Significant inhibition occured at 0.4?g/ml and 0.5?g/ml for MTC and CS respectively, but 1.6?g/ml for ADCC. Similarly, the minimal period of time necessary to bring about significant inhibition was 2 hr for MTC, but 3 hr for ADCC. Finally, significance of the inhibitory effect of Fusarin C on M? anti-tumor activity in relation to carcinogenesis was discussed.
3.Modulation of macrophage-mediated cytotoxic activity Ⅱ.The Inhibitory effect of fusarin C on macrophage activation is reversible
Zhong-Yun DONG ; You-Hui ZHANG ;
Chinese Journal of Immunology 1985;0(01):-
The inhibitory effect of Fusarin C,a new mutagen isolated from Fusarium moniliforme,on M? activation was investigated.The inhibitory effect of Fusarin C disappeared partially after 24 hr culture in the absence of the mycotoxin and completely after 72 hr.In addition,it could be overcome by high concentrations of M? activating factor or anti-serum to the target cells.
4.The effects of alanyl-glutamine dipeptide-enriched parenteral nutrition on outcome in radiation enteritis rats
Guanglong DONG ; Xiaonan LIU ; Zhang ZHANG ; Yun ZHANG ; Boquan JIN
Parenteral & Enteral Nutrition 1997;0(02):-
Objective:To investigate the impact of alanyl-glutamine(Ala-Gln) on outcome in radiation enteritis rats.Methods: Male SD rats(n=70)were separated randomly into four groups: control group(n=10),AR+pseudosurgery group(n=20),AR+TPN group(n=20) and AR+TPN+Ala-Gln group(n=20).Rats were observed for mortality,changs of body weight,villous hight and area,the bcteriral translocation(BT)in mesenteric lymph nodes(MLNs),liver,spleen and peritoneal cavity.Serum TNF-? and sIL-2R level were determined by sandwich ELISA.Results: When Ala-Gln was administered in radiation enteritis rat,the mortality,body weight loss and bacterial translocation were decreaded,the villous hight and area was increased and the TNF-? and sIL-2R levels were reduced.Conclusion: Parenteral Ala-Gln nutrition can improves the results of radiation enteritis rats.
7.Nursing management in the treatment of large number of infants with urinary calculi
Meixin WANG ; Sulan LIN ; Ju DONG ; Yun TANG ; Hong ZHANG
Chinese Journal of Nursing 2009;44(8):737-738
To explore the measures of nursing management in the treatment of large number of infants with urinary calculi. The nursing management measures included launching the preparedness and response project for sudden public health events, formulating scientific and standardized nursing management system,optimizing work flow,strengthening nurse training,focusing on the details in nursing management,implementing disinfection and isolation system seriously,and paying close attention to health education for the parents of minority infants. Scientific nursing management can ensure the treatment effectiveness and nursing safety for the infants with urinary calculi.
8.Analysis of surveillance results of schistosomiasis in Yunnan Province,2006
Yi DONG ; Xiguang FENG ; Meifeng SHEN ; Yun ZHANG
Chinese Journal of Schistosomiasis Control 1991;0(05):-
Objective To understand the schistosomiasis endemic situation of surveillance sites in order to offer the scientific evidence for schistosomiasis control in Yunnan Province.Methods According to the protocol of national surveillance of schistosomiasis,four national sites in Yunnan Province were surveyed and the results were analyzed.Results In the four surveillance sites in Yunnan Province,the average infection rate of schistosomiasis of residents was 1.92%,and the infection rates of cattle and water buffaloes were 3.65% and 6.59% respectively.The snail area was 99.44 hm2,and the average density of the snails was 0.37 snail/0.1 m2,and the snail infection rate was 0.08%.There was the feature of higher infection rate and lower infection intensity in residents in Yunnan.Conclusions The endemic situation of schistosomiasis falls obviously after the control.However,the domestic animals still play an important role in the transmission of schistosomiasis,and the snails are not well controlled in some sites.So the surveillance and control to cattle and the snail should be continuously strengthened.
9.Evaluation of Effect of Neonatal Hypoxic-Ischemic Encephalopathy Admitted to Neonatal Intensive Care Unit
bo-yun, DONG ; ya-fei, DU ; meng, ZHANG
Journal of Applied Clinical Pediatrics 2006;0(14):-
Objective To investigate a cure for neonatal hypoxic-ischemic encephalopathy(HIE) by observing the curative effect on neonates with HIE admitted to neonatal intensive care unit (NICU).Methods Fifty neonates with HIE from May to Dec.in 2006 admitted to NICU for treatment(NICU group),which contrast to the 42 neonates with HIE in corresponding periods of 2005 year(control group).The curative effect of three supports and three expectant treatment were evaluated by observing vital signs,oxygen saturation,biochemical test,and the neonatal beha-vioral nerve assessment (NBNA) respectively; Clinical curative effect contained markedly effective and effective which as the total curative effect statistics.Results There were no obvious difference between each group from the means of blood sugar data while hospitalizing as well as the NBNA in 3 days. By contrast, the blood sugar status and NBNA improving of neonates with HIE admitted to NICU surpassed the control group after treatment (Pa