According to the teaching situation,associated with common problems which influence paper quality,we discussed how to control students' paper quality on preventive medicine,such as adopting strict defense procedure,making score standard of defense,and so on.

Carcinoma ; genetics ; metabolism ; pathology ; surgery ; China ; Humans ; Male ; Oncogene Proteins, Fusion ; genetics ; Prostatic Hyperplasia ; genetics ; metabolism ; pathology ; surgery ; Prostatic Neoplasms ; genetics ; metabolism ; pathology ; surgery ; Proto-Oncogene Proteins c-ets ; genetics ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Serine Endopeptidases ; genetics ; metabolism

Poly(ADP-ribose) polymerase-1 (PARP-1) has emerged as a promising anticancer drug target due to its key role in the DNA repair process. It can polymerize ADP-ribose units on its substrate proteins which are involved in the regulation of DNA repair. In this work, a novel series of para-substituted 1-benzyl-quinazoline-2, 4 (1H, 3H)-diones was designed and synthesized, and the inhibitory activities against PARP-1 of compounds 7a-7e, 8a-8f, 9a-9c and 10a-10c were evaluated. Of all the tested compounds, nine compounds displayed inhibitory activities with IC50 values ranging from 4.6 to 39.2 micromol x L(-1). In order to predict the binding modes of the potent molecules, molecular docking was performed using CDOCKER algorithm, and that will facilitate to further develop more potent PARP-1 inhibitors with a quinazolinedione scaffold.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Drug Design ; Enzyme Inhibitors ; chemical synthesis ; chemistry ; pharmacology ; Molecular Docking Simulation ; Molecular Structure ; Poly (ADP-Ribose) Polymerase-1 ; Poly(ADP-ribose) Polymerases ; Quinazolinones ; chemical synthesis ; chemistry ; pharmacology ; Structure-Activity Relationship

Objective To study the efficacy and mechanism of compound Tripterygium hypoglaucum Hutch (THH) on photoallergic contact dermatitis in mice. Methods The photoallergic animal model of BALB/c mice was established by using photosensitizer chlorpromazine and UVA irradiation. The therepeutic efficacy was determined by measuring the thickness and the weight of the swelling ear and the number of infiltrated mononuclear cells in the ear tissue. Immunohistochemical technique was used to detect the ICAM-1 expression on keratinocytes, fibroblasts and vascular endothelial cells. The serum level of INF-? was measured by ELISA. The tested animals were divided into 3 groups: compound THH, THH alone and normal saline. Results The difference of the thickness of left ear before and after challenge, the differences of the thickness and the weight of ear tissue, the difference of the number of infiltrated mononuclear cells of left and right ear after challenge were significantly less in the compound THH group than those in the THH alone group (P

Objective To discuss the clinical value of 99Tcm-sestamibi(99Tcm-MIBI) myocardial perfusion imaging on detecting myocardial ischemia in children with Kawasaki disease(KD) at convalescence period.Methods Twenty-one children wih KD at convalescence period were divided into 2 groups according to results of echocardiography.Four cases with coronary artery dilation,17 cases without coronary artery dilation.All cases accepted dipyridamole stress myocardial perfusion imaging.These patients who had positive results were given rest myocardial perfusion imaging again next day.Results Among 21 cases,9 cases(42.8%) were positive in perfusion imaging.Four cases with coronary artery dilation showed myocardial ischemia in different degree detected by myocardial perfusion imaging.Among 17 cases without coronary artery dilation,5 cases(29.4%) were positive.Conclusions Compared to echocardiography,99Tcm-MIBI myocardial perfusion imaging can objectively evaluate the location,extent and degree of myocardial ischemia of children with KD.It will be a routine test in observing its phase development.

AlM:To investigate the prevalence of pterygium of the household population aged 40 and above in Hengli Town of Dongguan.
METHODS: Using the method of cluster random sampling, select 3 628 people aged 40 and above in four villages and one community for visual examination, intraocular pressure check, slit lamp examination and questionnaire.
RESULTS: The actual number of subjects was 3 393 people, and examination rate was 93. 52%. We detected 843 patients with pterygium. The prevalence of pterygium was 24. 85%.
CONCLUSlON:There is high prevalence of pterygium in Dongguan area. The prevalence of pterygium is related with age and working environment, but has no relation with gender.

Objective To establish the different degrees of rat diffuse axonal injury (DAI) model by using a self‐made DAI device .Methods A total of 70 healthy adult clean SD rats were selected and randomly divided into the normal control group (n=10) and DAI group (n=60) ,then the DAI group was randomly subdivided into the group A ,B ,and C ,20 cases in each group .The rat head injury model was prepared by using the self‐made experimental device ,which made the rat head to simultaneously produce instant oversized linear and angular accelerations ,different degrees of rat DAI model ,including mild DAI(group A) ,moderate DAI (group B) and severe DAI(group C) ,were induced by different rotation back and forth ,accelerated movement times under the con‐stant air pressure .The pathological and behavior effect evaluation was performed .Results With the injury degree aggravating ,the time interval of nerve physiological reflex recovery and awakening time in the acute DAI groups were increased (P<0 .05) .The nerve function score after 7 d in the DAI groups was decreased (P<0 .05);the death rates within 14 d after injury in the group A , B and C were 5 .0% ,25 .0% and 50 .0% respectively .With the injury degree aggravating ,the DAI pathological characteristics were more significant .Conclusion This device could effectively establish different injury degrees of DAI animal model .

Virtual experiment is the application of virtual reality technology in experiment sciences.In the physiology teaching, virtual reality modules are made up of experiment theory module,experiment process module,virtual reality module,review mod- ule and experiment report module.We set up a virtual physiology experiment system by author ware and other software.

Objective:To study whether the orientation behavior of rats is affected by multi-sensory information.Methods: SD rats were randomly divided into 2 groups:the audio-visual integration group and pure audio group.The orientation behaviors of rats were observed after given single modal and multi-modal sensory cues with spatial disparities.Results:We found that when the temporal and spatial audio cues were coincident to a target visual cue,the rats had a markedly reduced reaction time and increased success rate in orientation behaviors;there was an obvious audio-visual integration effect.The integration effect was more obvious when the intensity of target visual cue was weak,with the enhancement efficiency being(87.3?8.5)%, significantly higher than that when the intensity of target visual cue was stronger(27.6%,P

OBJECTIVETo observe analgesic effect and safety of acupuncture compound anesthesia in transvaginal ultrasound-guided oocyte retrieval.

METHODSThree hundred and sixteen cases undergoing in vitro fertilization and embryo transfer (IVF-ET) were randomly allocated to an acupuncture compound anesthesia group (n = 146) and a simple Pethidine group (n = 170). They received respectively electroacupuncture combined with intramuscular injection of Pethidine and simple intramuscular injection of Pethidine 30 min before oocyte retrieval.

RESULTSThe acupuncture compound anesthesia group was significantly better than the simple Pethidine group in the pain rating and pain score (P < 0.01); the incidence rate of abdominal pain at 1 h and 2-5 h after oocyte retrieval in the acupuncture compound anesthesia group was lower than that in the simple Pethidine group (P < 0.01).

CONCLUSIONIn transvaginal ultrasound-guided oocyte retrieval, acupuncture compound anesthesia has the advances of safety, high effectiveness, rapid recovery after oocyte retrieval, and few side effects.

Acupuncture Analgesia ; Adult ; Embryo Transfer ; Female ; Fertilization in Vitro ; Humans ; Oocyte Retrieval ; methods ; Ultrasonography ; Vagina ; diagnostic imaging