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.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.
3.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.
4.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.
5.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.
6.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.
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.Repair of defect induced by removal of body surface oversized malignancy with free anterolateral femoral skin flap
Hongyu CHENG ; Yibing WANG ; Guangjun WANG ; Weixi YANG ; Dawei ZHANG ; Meng XIONG ; Lei WANG
Chinese Journal of Microsurgery 2011;34(3):191-193,后插2
Objective To study the clinical efficacy of free anterolateral femoral skin flap on the repair of skin and subcutaneous soft tissue defects caused by excision of oversized malignant tumour in the skin. Methods A retrospective review was performed of free anterolateral femoral skin flap reconstructions for oversized malignant tumor cut on body surface since April 2007 to November 2010. There were 6 patients with head and limb squamous cell carcinoma because of bum scar and 3 patients with recurrence of dermatofibrosarcoma protuberans in wall of belly. The area of soft tissue defects ranged from 19 cm × 15 cm to 24 cm × 21 cm, and skin flaps was 20 cm × 16 cm to 25 cm × 22 cm in size. Three cases received radio therapy after operation. Results Nine flaps survived perfectly, one flap survived with partial necrosis and healed after changing dressings. No complications were observed in the donor site, including wound dehiscence, hernia and weakness. Follow-up survey of 12-24 months after the operation showed that the appearance and function in the repaired sites were normal, and norecurrence of the tumors. Conclusion Free transplantation of anterolateral femoral skin flap is relatively an ideal operative type for the repair of soft tissue defects caused by excision of oversized malignant tumour in the skin.
9.Application of self-etching adhesive technique on fixation of traumatized teeth
Feizhao LIANG ; Rongchang LEI ; Hongjian GUO ; Yanping TAO ; Hongyu CHEN ; Jianqiang WU
Journal of Practical Stomatology 2010;26(1):112-113
To increase the effective rate of treatment of dental injuries. Self-etching adhesives, flat steel wire and resin were used to make adhesive splints and to fix the dislocated teeth. The effect of treatment was excellent.
10.Compound radix angelicae sinensis injection improves oocyte and segmentation sphere injury resulted from subacute exposure to heavy diesel exhaust particles in female mice
Xinru HONG ; Fang FANG ; Yanfeng SONG ; Hongyu YU ; Lei ZHAO ; Qinghua SUN
Chinese Journal of Perinatal Medicine 2011;14(8):475-482
Objective To investigate the effects of compound radix angelicae sinensis injection on oocyte and segmentation sphere injured by subacute exposure to diesel exhaust particles (DEP) in female mice. Methods Two hundred and ten 21-day-old ICR female mice were randomly divided into 5 groups: the control group (group A), DEP group (group B), DEP+low-dose group (group C),DEP±middle-dose group (group D) and DEP+high-dose group (group E). There were 42 mice in each group. The mice were inoculated with 30 μ1 DEP suspension at 12.0 μg/μl (group B-E) or the same volume of vehicle (PBS, group A) on pharynx posterior wall by sample pipettor beginning at day 21 and repeated every 3 days for 4 times. The mice were sacrificed three days after the last exposure.Compound radix angelicae sinensis injection containing 75 (group C), 150 (group D) and 300 (group E)grams of crude drug, respectively, which was intraperitoneally administered for each mouse daily from the day of the first DEP inoculation till the day before sacrifice, consecutively for 12 days. The general conditions were observed, and the body weight and ovary/body weight ratio were tested. Superoxide dismutase (SOD) activity, malondialdehyde (MDA) and reduced glutathione (GSH) contents in ovarian tissues were assayed. Rates of survival, germinal vesicle breakdown, extrusion of the first polar body and in-vitro fertilization, and quantity of mitochondrial DNA for oocytes were investigated.Ultrastructural changes of oocytes were observed. Results ( 1 ) No significant difference of the body weight was found among all the groups (P>0. 05). The ovary weight, ovary/body weight ratio, ovary SOD and GSH content were significantly decreased in groups B [( 1.5 ± 0. 6) mg, ( 7.2 ± 2. 5) × 10-5 ,(192. 10±23.67) nU/mg prot and (262.40 ± 31.60) nmol/mg prot], and C [( 1.7 ± 0. 2) mg,(8.9±0.6)× 10-5, (198.92±24.27) nU/mg prot and (271.66±14.58) nmol/mg prot] and D [(2. 1±0. 2) mg, (9. 8±1. 1)×10-5, (214. 37±27. 19) nU/mg prot and (285. 93±9. 55) nmol/mg prot] as comparing to groupA [(3. 3±1. 5) mg, (15.4±7.3)×10-5, (292. 30 ± 40. 03) nU/mg prot and (367.98±24.59) nmol/mg prot (P< 0. 05 or P<0.01); and significantly increased in group E [(3. 7±1.1) mg, (18. 7±5. 4)× 10-5, (279. 10±12. 63) nU/mg prot ]and (353. 59±10. 61) nmol/mg prot]comparing to group B (P<0. 01). MDA content was signi-ficantly increased for groups B, C and D [(3. 88±0.35) nmol/mg prot, (3. 62 ± 0. 19) nmol/mg prot and (2. 63 ± 0. 34) nmol/mg prot] comparing to group A [(2. 18±0. 44) nmol/mg prot](P<0. 05 or <0. 01, respectively); and significantly decreased for group D and E (2. 35±0. 37 nmol/mg prot) comparing to group B (P<0. 01). (2) In all observed time points, oocyte survival rate in group B and C, extrusion rate of the first polar body and in-vitro fertilization rate in group B, C and D were significantly lower than in group A (P < 0. 05 or <0. 01), and all those in group E were significantly higher than in group B (P<0. 05). Rates of germinal vesicle breakdown were 100% in all five groups. (3) Logarithmic values of mitochondrial DNA copy numbers in group C, D and E were significantly lower than in group A; whereas significantly higher in group C and D than in group B (P<0.01). (4) Normal appearance for oocytes in group A was seen. In groups B and C, a number of cytoplasmic organelles were dramatically degenerated in part of the oocytes and some necrotic oocytes were seen. Large body of mitochondria in the oocytes swelled and vacuolized in group D, while such changes dincished to a lesser extent and scope in group E. Conclusions Compound radix angelicae sinensis injection exerts a favorable curative and protective effect on oocyte and segmentation sphere injured by subacute DEP exposure in female mice.