1.Further understanding the Chinese guide of acute pancreatitis management.
Chinese Journal of Practical Internal Medicine 2001;0(04):-
Based on our clinic experience in the diagnosis and treatment of acute pancreatitis,this article discussed some basic problems of the chinese guide of acute pancreatitis management,such as the definition of acute pancreatitis,classification of acute pancreatitis,diagnosis and treatment of acute pancreatitis.
2.Celastrol inhibits tumor necrosis factor-alpha induced proliferation and inflammatory responses in RAW264.7 cells
Guangfu CHEN ; Yuanqing GUO ; Yutian WU
Chinese Journal of Tissue Engineering Research 2016;20(37):5552-5559
BACKGROUND:Celastrol is one of the active components extracted from the traditional Chinese medicine Celastrus orbiculatus characterized by expel ing the wind and promoting blood circulation and relieving swel ing and pain.
OBJECTIVE:To investigate the effects of celastrol on tumor necrosis factor-α(TNF-α) induced proliferation and inflammatory responses in RAW264.7 cel s.
METHODS:In vitro inflammatory cel models induced by TNF-α(0, 1, 10, 100μg/L) were treated with celastrol (0.1, 0.5, 1.0, 2.0μmol/L). Interleukin-1β,-6,-8 and prostaglandin E2 in the models were measured by enzyme-linked immunosorbent assay. Cel survival was determined by cel counting kit-8. The inflammatory mediator nitric oxide secretion was detected by nitrate reductase assay. mRNA expressions of inducible nitric oxide synthase, cyclin D1 and cyclin E1 were detected by real-time polymerase chain reaction technique.
RESULTS AND CONCLUSION:Significantly increased secretion of interleukin-1β,-6,-8, prostaglandin E2 and nitric oxide, cel proliferation, and mRNA expressions of inducible nitric oxide synthase, cyclin D1 and cyclin E1 were observed after the induction of TNF-α(0.1, 10, 100μg/L) compared with the control group (without the induction of TNF-α) (P<0.05);especial y, 10μg/L of TNF-αexhibited the strongest effects. 0.4μmol/L celastrol significantly suppressed TNF-α-induced release of interleukin-1β,-6,-8, prostaglandin E2 and nitric oxide, cel proliferation, and mRNA expressions of inducible nitric oxide synthase, cyclin D1 and cyclin E1 in RAW264.7 cel s (P<0. 05). Our results demonstrate that celastrol can inhibit TNF-α-induced inflammatory response and proliferation in RAW264.7 cel s.
3.A study on serum thyroid hormone level alterations after hemithyroidectomy
Xiaojun XIE ; Yutian CHEN ; Qinghai JI
Chinese Journal of General Surgery 1993;0(03):-
Objective To investigate serum T_3? T_4? TSH alterations after hemithyroidectomy in patients suffering from thyroid benign nodules.Methods Forty-eight patients were divided into two groups by age of 45.All patients were treated with hemithyroidectomy and without substitutional therapy after operation.The levels of serum TT_3? TT_4? FT_3? FT_4? TSH were assessed on day 5, first month, 3rd month, 6th month and one year after operation and compared with pre-operative levels.Results The change of serum T_3? T_4 was not significant; while the levels of serum FT_3? FT_4 in patients over 45 years decreased on day 5 post-op and on the first month ( F=7.853, F=4.247, P
4.Identification of Yangti (crispate rhubarb) by near-infrared diffuse reflectance spectroscopy
Lili LIU ; Yuan YUAN ; Wansheng CHEN ; Hanming ZHANG ; Yutian WU ;
Chinese Traditional and Herbal Drugs 1994;0(11):-
Object To establish a new method for the identification of Yangti (Chinese herb from Rumex L., Polygonaceae) by near infrared diffuse reflectance spectrometry. Methods Cluster analysis and discriminative analysis were adopted for their identification. Results The method can identify crude Yangti to a certain degree with results coincident with that of the traditional phytotoxnomy. Conclusion This method can be used for the rapid and accurate differentiation of crude drug of Rumex L..
5.Analysis Of Authorized Patents In Nanjing Drum Tower Hospital From 2003 to 2014
Jian WANG ; Lili SHA ; Le ZHANG ; Chen ZHOU ; Yutian DAI
Chinese Journal of Medical Science Research Management 2015;28(6):486-489,501
Objective To summarize the experience and the insufficiency of Nanjing Drum Tower Hospital on patent management,and find out the problemsand countermeasures for the management.Methods The authorized patents during 2003-2014 of Nanjing Drum Tower Hospital were analyzed statistically,and the date was overall analyzed combined withthe number,type,content,maintenance and transfer of patent and inventors' educational background,title and subject;and results are further analyzed;Results Patent grant increased significantly more than the invention patent in recent years.In terms of patent types,most patents are utility model patents,and conversion rate of patent outcome is very low.Conclusions Suggestions are proposed to improve hospital patent management:strengthening the guidance of the management of patent policy;promoting patent work;enhancing the professional quality of patent managers;optimizing the patent management processe andstrengthening the patent examination and data analysis;strengthening strategic cooperation among intellectual property management department,patent agency and biological pharmaceutical enterprises.
6.Novel type of nurse-physician collaboration and medical safety
Yutian BI ; Kehong CHEN ; Wujun LIN ; Xiaobin CHENG ; Lin ZHOU
Chinese Journal of Hospital Administration 2014;(9):659-662
Quality of care is key to medical safety which has a close bearing on patients’life and health,and on the branding and efficiency of the hospital.Medical safety is one of the key indicators of the overall performance appraisal of the hospital.This novel type of nurse-physician collaboration,abandoning the traditional model of health care,is a new integrated model of health care which improves the overall quality of care,enhances medical safety and patient satisfaction.This paper described in detail the implementation methods and steps of the collaboration,the progress of such a collaboration and its contribution to medical safety are also discussed.
7.SFE-CGC DETERMINATION OF TANSHINONE IN SALVIA MILTIORRHIZA BUNGE
Bin CHEN ; Mei ZHU ; Wongxing XING ; Lili LIU ; Yutian WU
Acta Pharmaceutica Sinica 2001;36(1):55-57
AIM To analyze tanshinone IIA in Salvia miltiorrhiza Bunge by supercritical fluid extraction (SFE) coupled with capillary gas chromatography (CGC). METHODS The solution pressure was predicted by solubility parameter theory, the extraction conditions were confirmed by orthogonal design in which temperature, volume of modifier and dynamic extracting volume had been studied in three levels. RESULTS This method is quick, convenient, precise and accurate, added sample recovery is 95.3%, RSD=4.27%. CONCLUSION Compared with the method of ultrasonic extraction, significantly better qualitative and quantitative result could be obtained by SFE-CGC and expend less organic solvent then make less pollution.
8.Alcohol extracts of Narcissus bulb inhibits melanogenesis in zebrafish embryos
Wenjuan ZHANG ; Jingjin XU ; Xiaoying CHEN ; Xiumin LI ; Jinmei CHEN ; Yutian PAN ; Yu XUE
Acta Laboratorium Animalis Scientia Sinica 2017;25(4):425-432
Objective The aim of this study was to explore the inhibitory effect of alcohol extracts of Narcissus bulb on melanogenesis in zebrafish embryos.Methods Zebrafish embryos were exposed to different concentrations of alcohol extracts of Narcissus (0, 50, 100, 200, and 500 μg/mL), and then the formation of melanin was observed.Furthermore, we measured the enzyme activity of tyrosinase (TYR), which plays a pivotal role in melanogenesis.Meanwhile, the spatial and temporal pattern of melanin-specific marker genes were detected.Arbutin (Ar) was used as a positive control in all these experiments.Results The treatment of alcohol extracts of Narcissus bulb inhibited melanogenesis in the zebrafish embryos in a dose-dependent manner.Furthermore, the mRNA expression levels of melanin-related genes such as tyrosinase (TYR), silver (SILV) and Mitfa were significantly reduced after treatment with different concentrations of Narcissus extracts by in-situ and semi-quantitative PCR.Finally, the enzyme activity of tyrosinase was also gradually decreased with increasing concentrations of the alcohol extracts.Conclusions Narcissus alcohol extracts can effectively inhibit the production of melanin in zebrafish embryos.This study provides potential evidence and approaches for the screening of natural whitening compounds using zebrafish models.
9.Identifying the origin fungi of the traditional Chinese medicine Hongqu with capillary gas chromatography method
Wangxing XING ; Heming MI ; Bin CHEN ; Shijing CHEN ; Xiang HE ; Yutian WU
Academic Journal of Second Military Medical University 2001;22(5):429-431
Objective:To establish a capillary gas chromatography(CGC) method for identifying the origin fungi of traditional Chinese medicine Hongqu. Methods:The volatile components of 7 species of Monascus including M. purpureus Went, M.aurantiacus Lee, M. serorubesceus Sato, M. albidus Sato, M. barkeri Dangerd, M. ruber van Tieghem, and M.fuliginosus Sato were analyzed by capillary gas chromatography method. Inlet temperature and detector temperature were 280℃,temperature program were 130℃,5 min→10℃/min→200℃, 10 min FID was used for detection. Results:The variety and contents of the volatility components in Monascus had obvious differences which can be distinguished easily by the main fingerprint peaks within 20 min. Conclusion:This method is useful to identify of Monascus fungi.
10.Rat bone marrow mesenchymal stem cells induce hepatic stellate cells apoptosis in vivo
Nan LIN ; Shujie XIE ; Weidong PAN ; Kunpeng HU ; Si CHEN ; Yutian CHONG ; Peng XIANG ; Ruiyun XU
Chinese Journal of Tissue Engineering Research 2010;14(10):1769-1774
BACKGROUND:It is reported that bone marrow mesenchymal stem cell(BMSC)transplantation might be a promising treatment for liver fibrosis.But the mechanism is still unclear.OBJECTIVE:To observe the hepatic stellate cells apoptosis induced by BMSC transplantation,and to study the mechanism of BMSC in treating hepatic fibrosis in vivo.METHODS:CCl_4 subcutaneous injection was performed to induce rat liver fibrosis.After 8 weeks of CCU injection,20 rats which underwent successful model establishment were randomly divided into experimental group and control group,10 in each group.The experimental group received MSC transplantation via tail vein injection,and the control group were given DMEM instead.The rats were killed and the livers were harvested at three time point,the day of MSC transplantation,3 days after transplantation,and 7 days after transplantation.The hydroxyproline content was detected by HE and Masson staining,and the expression changes of α-smooth muscle actin(α-SMA)proteins were determined using immunohistochemistry.The apoptosis of hepatic stellate cells were determined by α-SMA and TUNEL(terminal dUTP nick-end labeling)dual-staining.RESULTS AND CONCLUSION:After 8 weeks of CCU injection,the hydroxyproline content increased and histology indicated progress of liver fibrosis.At 7 days after MSC transplantation,the hydroxyproline in the liver was decreased,and the liver fibrosis was alleviated in the experimental group but aggravated in the control group.Immunohistochemistry indicated that α-SMA positive cells were increased at 8 weeks after CCU injection.At day 7 after transplantation,α-SMA positive cells in the experimental group were significantly less than control group(P < 0.05).At 3 days after transplantation,the hepatic stellate cells apoptosis in the experimental group was significantly aggravated compared with control group(P < 0.05).This suggested that MSC transplant was an effective treatment for liver fibrosis.MSC inducing hepatic stellate cells apoptosis may be one of the mechanisms.