1.Establishment and application of screening method for DPPIV inhibitors in vitro
Lei MIAO ; Hongyu XU ; Jianyong LEI ; Jian JIN ; Zhenghong XU
Chinese Pharmacological Bulletin 1987;0(03):-
Aim To develop a model for screening DPPIV inhibitor from Chinese Herbal medicine.Methods With Gly-Pro-PNA as a substrate,DPPIV activity was assayed by the chromogenic substrate.The concentration of DPPIV and Gly-Pro-PNA,temperature,pH and reaction time were optimized.Results The optimal enzymatic reaction system was as follows:DPPIV 0.5 U?L-1,Gly-Pro-PNA 0.262 ?mol?L-1,37℃,pH 8.2,reaction for 60 min.Further more,many kinds of herbal abstracts were screened and some had the DPPIV inhibitory function,such as Leech,Poria cum Radix Pini and Buddleja officinalis Maxim.Conclusion The model can be used to screen for DPPIV inhibitors in vitro.
2.Effects of Xuefurong capsules on sexual function and nNOS expression in paraventricular nucleus in male castrated rats
Jianmei CUI ; Xiaoyang WANG ; Hongyu LIU ; Lei ZHANG ; Xiaoxia SONG
Journal of Xi'an Jiaotong University(Medical Sciences) 2004;0(05):-
Objective To evaluate the effects of Xuefurong capsules,the traditional Chinese medicine for invigorating the kidney,on sexual function and expression of neuronal nitric oxide synthase(nNOS) in paraventricular nucleus(PVN) in adult castrated SD rats.Methods The male castrated rat model was made and three days after operation the liquid of Xuefurong capsules(5 mg/kg) was given by intragastric administration once a day for 28 days.The sexual function was observed and the nNOS expression in PVN was detected by using ABC immunohistochemical method.The number,area and gray degree of nNOS were counted and analyzed with semi-quantitative method.Results ①Compared with that in the castrated group,the serum testosterone level increased obviously in Xuefurong group(P0.05).Conclusion Xuefurong capsules can increase the level of testosterone,enhance the sexual function of castrated rats and nNOS expression in PVN.
3.Analysis on concentrations of serum lipids in patients with psoriasis
Juan LIU ; Lei DONG ; Ting LI ; Hongyu MA ; Meicai ZHU
International Journal of Laboratory Medicine 2015;(4):440-441
Objective To investigate the dyslipidemia in patients with psoriasis,and the characteristics of the serum lipids in pa-tients with different types of psoriasis.Methods 332 psoriatic patients were devided into pustular psoriatic,psoriasis vulgaris and erythrodermic psoriasis based on clinical manifestations.Serum lipids of the three groups were analyzed including TC,TG,HDL-C, LDL-C,ApoA1,ApoB and Lp(a).Results The serum concentrations of TC,HDL-C,ApoA1 in patients with psoriasis were signifi-cantly lower than those in control group(P <0.05),while the concentration of Lp(a)was significantly higher in psoriasis patients compared with those in control group(P <0.05).The serum level of TC,HDL-C,LDL-C and ApoA1 in pustular psoriasis group were significantly lower than those in the other two groups(P <0.05).Conclusion The patients with psoriasis have dyslipidemia, and the serious disorder situation could be associated with psoriasis types.
4.Research progress in optical imaging technology of luciferase
Lei DONG ; Juan LIU ; Hongyu MA ; Shouzhen QUAN ; Meicai ZHU
International Journal of Biomedical Engineering 2012;(6):373-376
The primary function of optical in vivo imaging technique is tracing and detecting the action and expression of maker cells,maker microorganisms and maker molecules.This technique makes possible the noinvasive study of biological events continuously with high sensibility,simplicity and high speed.It has been applied in numerous research fields.This paper presents a review of principle and application of this technique.
5.Study on the scale of the comprehensive quality evaluation of medical postgraduates and application in the awards
Ran XUE ; Ruijie ZHANG ; Ying TAO ; Hongyu GUO ; Liping LEI
Chinese Journal of Medical Education Research 2017;16(1):1-6
Objective Under the guidance of graduate education evaluation theory,to establish the comprehensive quality evaluation standard of medical graduate students and apply it in the research of the scholarship evaluation.Methods Byusing literature study,brainstorming,expert advice and other research methods,we established comprehensive quality assessment scale.In the work of graduate scholarship,the scale was used to carry out the evaluation work,and the application of the scale,the use value and the effect of moral evaluation were studied.Results A comprehensive quality assessment scale for medical graduate students,which included 4 dimensions of moral education,training process,scientific research and social activities was established so that the students' daily performance was quantified and evaluated,which,to a certain extent,eliminated the influence of the subjective judgment to the evaluation work,and had good guidance and practicality.Conclusion Establishing comprehensive quality quantitative evaluation mechanism of the graduate students and conducting the dynamic evaluation to graduates' moral education,their academic and social activities are conducive to stimulating the development of postgraduates' comprehensive quality and improving the quality of training.
6.Qualitative analysis and the method of field processed products of Paeonia suffruticosa Andr. in Shandong Province
Wenhai LU ; Xin ZHANG ; Lei SONG ; Peng TAN ; Hongyu JIANG
Chinese Traditional Patent Medicine 1992;0(10):-
AIM: To probe into the method of field processed products of Paeonia suffruticosa Andr. and inspect its quality. METHODS: Through field processed investigation alcohol-macerated extracts and paenol content compared among the smoked, de-epidermis, drying and direct drying in the sun. RESULTS: Paeonia suffruticosa Andr. with the epidermis is better than others. CONCLUSION: The method of integrating field cutting crude drugs into pieces with processing of Paeonia suffruticosa Andr. has feasible standardization and industrial benefits.
7.Complications of Urodynamic Examinations: 38 Cases Report
Lei ZHAO ; Xiaojun TIAN ; Hongyu GU ; Lulin MA
Chinese Journal of Rehabilitation Theory and Practice 2009;15(3):263-264
Objective To investigate the complications of urodynamic examinations. Methods All the complications in 1450 urodynamic examinations were analyzed retrospectively. Results There were all 38 complications (2.62%), including 25 hematuria (1 with severe hematuria requiring emergency operation), 9 fever, 1 anal hemorrhage, 3 failure in bladder catheter intubation. Conclusion Avoiding unnecessary urodynamic examinations and adopting appropriate precaution may reduce the complications of urodynamic examinations.
8.Role and mechanism of Astragalus in alleviating adhesion of neutrophils to human renal tubular cells induced by postasphyxial-serum of neonate
Hongyu YANG ; Wenbin DONG ; Qingping LI ; Xiaoping LEI ; Tao XIONG ; Cunliang DENG ; Feng CHEN
Journal of Clinical Pediatrics 2009;(11):1070-1073
Objective To investigate the role of Astragahs in alleviating adhesion of neutrophils to HK-2 cells induced by postasphyxial-serum of neonate and its signal transduction mechanism. MethodsHK-2 cells were used as target cell. Control group, asphyxia group, Astragalus group were divided in the experiment. The 20% (volume fraction) postasphyxial-serum was used as attacking factor. The following indicators were detected: cellular morphology and neutrophils adhesion were observed with inverted microscope. The activity of myeloperoxidase (MPO) in the cell suspension were determined by biochemistry assay as the indicator for adhesion of neutrophils to HK-2. Intercellular adhesion molecule-1(ICAM-1) were examined by flow eytometer. ResultsThe neutrophils numbers (MPO activity) and ICAM-1 expression in asphyxia group were higher than that of the control group, but dramatically decreased in Astragalus group (P < 0.05). ConclusionsThese data demonstrated that Astragalus could alleviate the adhesion of neutrophils from neonate with asphyxia to HK-2 and it' s intracellular signal transduction mechanism is presumably involved in the inhibition of ICAM-1 expression on HK-2 cellular membrane.
9.Genioplasty with modified Mortise-Tenon joints technique
Xiaojun TANG ; Shujie RUAN ; Lin YIN ; Zhiyong ZHANG ; Lei SHI ; Wei LIU ; Hongyu YIN
Chinese Journal of Medical Aesthetics and Cosmetology 2017;23(3):156-159
Objective To explore a new modified stable genioplasty with modified MortiseTenon joints technique and to analyze the surgicaI results in clinic as well as to discuss the advantages in theory.Methods Eleven patients were performed by the genioplasty with Mortise-Tenon joints technique intraoral approach from June 2012 to March 2014,who were suffered from retrusion of chin with different degree accompanying with long chin.The two segments of the chin by osteotomy were made into the Mortise-Tenon joints and fixed by titanium plates.The results were evaluated by clinical appearances and image analyses.Results All 11 patients were satisfied with the procedure and the contour of the chin.The surgical effects were stable without any complications.The advancement in average Mortise-Tenon joints technique was 7.38 mm.Conclusions Much better in stablility and less relapse are achieved by using modified Mortise-Tenon joints technique;furthermore,the genioglossal muscle and geniohyoid muscle are reserved as much as possible,and therefore the normal function of them could be maintained.This method is a good alternative technique for chin retrusion coexisted withlong chin.
10.Expression of TM4SF1 and its effect on proliferation, migration and invasion in pancreatic cancer cells
Jia CAO ; Lei LI ; Sijia HE ; Jing JIN ; Hongyu WU ; Leiming XU ; Zhaoshen LI
Chinese Journal of Pancreatology 2014;14(2):73-76
Objective To determine the expression of TM4SF1 mRNA in 5 human pancreatic cancer cell lines,and investigate its effect on the proliferation,migration and invasion of pancreatic cancer cells.Methods The expression of TM4SF1 mRNA in MPanc96,MiaPaCa-2,PANC1,AsPC-1,HPAC cells was determined by qRT-PCR,and the results were compared with that of human pancreatic ductal epithelial (HPDE) cells.RNA interference method was used to transiently transfect siRNA targeting at TM4SF1 and negative control siRNA into MPanc96,MiaPaCa-2 cells.The proliferation of cells were measured by MTS method,and migration and invasion of cells were determined by Transwell.Results The expression levels of TM4SF1 mRNA in pancreatic cancer cell lines MPanc96,MiaPaCa-2,PANC1,AsPC-1 and HPAC were 1.205 ± 0.073,1.096 ± 0.260,1.382 ± 0.075,1.374 ± 0.363 and 0.744 ± 0.096,which were significantly highly than that in HPDE (0.020 ± 0.003,P < 0.01).Compared with cells transfected with negative control siRNA,the proliferation of MPanc96 and MiaPaCa-2 cells transfected with siRNA targeting at TM4SF1 was not significantly changed,but the migration abilitiy was decreased by (62.5 ± 7.6) % and (72.8 ± 4.0) %,and invasion abilitiy was decreased by (69.5 ± 5.7) % and (78.6 ± 6.3) %.Conclusions TM4SF1 is highly expressed in pancreatic cancer cells and appears to promote the migration and invasion abilities of the cancer cells.