From laboratory Physicians's localization to discuss the clinical practice teaching of undergraduate student,to cultivate the ability of turning laboratory data into effective information;to strengthen the teaching of evidence based laboratory medicine,to participate in clinical pathology discuss and to combine clinic to make scientific researches.It is very important to cooperate with the clinic in the practicing teaching.

0.05). Conclusion The movement of train has not obviously affect to the routine blood test.

Objective To investigate the effect of methylprednisolone pulse therapy on spinal nerve functions in patients with acute spinal cord injury (ASCI) and evaluate its safety. Methods 200 patients with ASCI treated in our hospital from January 2010 to December 2016 were selected and were randomly divided into two groups,with 100 cases each group. The patients in control group were treated with routine basic treatment while patients in the study group were treated with methylprednisolone pulse therapy. On the basis of the American spinal cord injury Society scoring criteria (ASIA), the neurological functional recovery scores were performed were scored before and 6 weeks after treatment between the two groups and the adverse reactions were recorded. Results The scores of sensory and motor function of the patients in the two groups were higher than those before the treatment and there was statistical difference (P<0.05), and the scores in the study group was significantly higher than those in the control group, and the difference between the two grouPs was statistically significant (P<0.05). The incidence of adverse reactions in the study group (25.00％) was significantly higher than that in the control group (10.00％), and the difference was statistically significant (P<0.05). The incidence of lung infection and gastrointestinal reaction in the study group were significantly higher than those in the control group and there were statistical difference (P<0.05). Conclusion Methylprednisolone pulse therapy has significant effect on the recovery of neurological function in patients with ASCI, but the incidence of adverse reactions is high, so it is necessary to strengthen the monitoring and intervention in clinic.

Uveitis is a kind of inflammatory disease affected in ocular posterior segment.Uveitis sustains a long duration and causes a significant damage of visual function.It often leads to serious complications,such as cystoid macular edema (CME),cataract,glaucoma,retinal detachment and choroidal neovascularization (CNV).In the pathological process of uveitis,inflammatory factors promote the release of vascular endothelial growth factor (VEGF) through a variety of pathways.It has been verified that VEGF level is elevated in vitreous in the patients with uveiticinduced CME.Intravitreal injection of anti-VEGF drugs,including ranibizumab and bevacizumab,can improve the visual acuity in most patients with noninfectious uveitic-induced CME and CNV.However,intravitreously repeated injections of anti-VEGF drugs may be required in some patients.Intraocular injection of anti-VEGF drugs is an optional and effective way for those with persist macular edema and not being suitable for the use of corticosteroid or immunosuppressive therapy.However,anti-VEGF drugs may affect the efficacy of corticosteroid.Therefore,more clinical and basic researches are still needed.The status and progresses in the use of anti-VEGF drugs for uveitisinduced CME and CNV were reviewed.

Objective:Tumor suppressor gene nitrogen permease regulator like 2 (NPRL2), also called tumor suppressor candidate gene 4 (TUSC4), widely exists in all kinds of human tissues and is highly conserved in different kinds of biological species. The expression of NPRL2 is markedly decreased in many human tumor tissues, such as lung cancer, breast cancer,renal carcinoma, et al. NPRL2 is located in human chromosome 3p2.13, and participates in DNA mismatch modification, regulation of signal transduction du-ring cell cycle progression, and apoptosis induction. NPRL2 gene inactivation is related with the initiation and progression of several malignant tumors. The mechanism underlying the tumor-inhibiting activity of NPRL2 gene is not clear and needs to be further investigated.

Aiming at the shortcomings of the traditional nuclear medicine teaching model and attempting to adapt to the needs of the development of clinical nuclear medicine,we changed teaching methods,strengthened practice teaching,performed online learning,introduced the self-made teaching materials,enriched the teaching contents,proposed the concept of comparative imaging and reformed on examination method.These measures greatly improved students' interests in learning and clinical thinking ability and helped students understand and master the theoretical knowledge of medicine.

Objective To investigate the expression and distribution of COX-2 in benign and malignant breast disease,and the relationship among COX-2 expression and the clinicopathologic factors,hormone receptors.Methods Immunohistochemistry Was used to investigate the expression and distribution of COX-2 in 8 accessory.breasts,31 BPBDs(15 in adnosis,16 in fibroadnoma),70 IDCs(35 of them accompany with DCIS);The relationships between the expression of COX-2 and hormone receptor(ER and PR),C-erbB-2.and the clinicopathologic factors were studied respectively.Results①The expression of COX-2 in various kinds mammary diseases:8 accessory breasts were all negative;the positive rate of COX-2 in BPBD was 96.5%(30/31),among these,the positive rate of COX-2 in adnosis was 93.3%(14/15),and in fibroadnonm was 100%(16/16).The positive rate of COX-2 in DCIS was 85.7%(30/35).The intensity of COX-2 expression in DCIS of periph-IDC was higher than that in corresponding carcinoma.The positive rate of COX-2 in IDC Was 84.3%(59/70),the expression of COX-2 Was different among non-cancer gland.②COX-2 expression in BPBD was obviously higher compared with COX-2 in IDC,the difference was significant in statistics(χ2=9.39,P＜0.025).③The expression of COX-2 in DCIS was correlative with low histological differentiation(χ2=10.98,P＜0.005),PR negative(P=0.019,Fisher exact probability),and C-erbB-2 positive(P=0.0008,Fisher exact probability).The expression of COX-2 in IDC was correlative with lymph node metastasis(χ2=4.09,P＜0.05),tissue poorly differentiated(P=0.004,Fisher exact probability),PR negative(χ2=6.91,P＜0.01)and C-erbB-2 positive(χ2=5.94,P＜0.025).Conclusion COX-2 does not express in normal mammary gland.It is high-expressed in BPBD,DCIS and IDC;These indicate the up-regulation of COX-2 expression not only participates in breast carcinogenesis,but also promotes its metastasis and progression,and suggests COX-2 may down-regulate reactivity of endocrine thempy by participating in therapy resistance of PR negative breast cancer.

Objective To explore the related structures of retrosigmoid approach by microanatomy and virtual anatomy and provide a reliable approach with more morphologic data. Methods Twenty sides of 10 adult cadaveric heads were dissected to simulate retrosigmoid approach under the microscope. The neurovascular structures of pontocerebellar trigone were observed, and the related structures were simultaneously measured based on the junction of superior petrosal sinus and sigmoid sinus and internal acoustic pore. The internal auditory canal was opened by drilling the margin of the internal auditory meatus and its structures were watched. With the help of Dexotroscope system, the data of five patients' CT and MRI were applied to reconstruct and anatomize the structure of retrosigmoid approach. Results It was found that the distance from the junction of superior petrosal sinus and sigmoid sinus to the trigeminal nerve was (38.50±2.64)mm, to the acoustic-facial bundle (27.80±2.25)mm, to the glossopharyngeal nerve (32.70±2.11)mm, to the hypoglossal nerve (44.30±2.05)mm, and the distance from internal acoustic pore to the trigeminal nerve was (5.68±1.55)mm, to the abducent nerve (13.80±1.81)mm, to the tentorium of cerebellum (5.00±0.66)mm, to the glossopharyngeal nerve (6.34±1.24)mm. The pontocerebellar trigone was divided into the anterior compartment, the middle compartment, the posterior compartment built on the acoustic-facial bundle and the glossopharyngeal nerve. Their structures were displayed after drilling the margin of the internal auditory meatus. Dexotroscope system clearly displayed asterion, the angle of transverse and sigmoid sinus, jugular foramen, internal acoustic pore, basilar artery and its branches, and theirs spatial relationship.Conclusion The three compartments of the pontocerebellar trigone are helpful to understand the feature of the neurovascular layer, the measurement is favorable to quantize the relation of the related structures and to judge the space of each compartment. Recognizing the anatomical marker of internal acoustic pore can support preservation of the inner structures. Virtual anatomy of Dexotroscope system can display local anatomical structure respectively. Both microanatomy and virtual anatomy have their advantages and disadvantages respectively and integration can be beneficial to understand neurovascular structures in the pontocerebellar trigone.

Objective The aim of our study was to evaluate the efficacy and safety of tirofiban in patients with acute coronary syndromes with thrombus-containing lesions.Methods We randomized 38 acute coronary syndromes(ACS)patients with thrombus-containing lesions into tirofiban group and control group.In the tirofiban group,10～30 mL of tirofiban was administered intracoronar before and/or after percutanous transluminal coronary angioplasty(PTCA),then stent was implanted as needed.Intravenous tirofiban was used for 24～48 hours after the procedure.In the control group,standard percutanous coronary intervention(PCI)was used for the patients.TIMI thrombosis grade,TIMI blood flow,no reflow and/or slow flow,corrected TIMI frame count(cTFC),myocardial blush grade(MBG),left ventricular eject fraction(LVEF)were measured in the two-dimensions untrasonography;major adverse cardiac events(MACE)and bleeding were observed.Results TIMI thrombosis grade and cTFC decreased more in the tirofiban group than that of the control group[0.90?0.14 vs 1.53?0.54,P

BACKGROUND: Several studies have demonstrated that the range,thickness and morphology of oral prosthesis directly influence patient's phonetic function,and titanium base and polymethyl methacrylate(PMMA)resin base yield different influences on phonetic function due to different thicknesses of materials.OBJECTIVE: To analyze the phonetic parameters in one complete denture patient who wear titanium base and PMMA resin base simultaneously and investigate the influences of maxillary complete denture base on phonetic function.METHODS: Through the use of computer-based voice analysis software PRAAT4.4.34,frequency value of the first concentrated frequency area when speaking consonant sounds/x,sh,r,zh,ch,j,q/and voice onset time when speaking consonant sounds/g,k,zh,ch,j,q/were statistically analyzed in the same patient who separately wear titanium complete denture base and PPMA resin complete denture base,and spectrogram of velar stops between complete denture bases was compared.RESULTS AND CONCLUSION: MMPA resin complete denture base was to some extent poor in promoting the recovery of phonetic function owing to great base thickness.Titanium complete denture base with less thickness in the tongue or palate region would help recovery of phonetic function.Extraction and analysis of phonological parameters,such as frequency value of first concentrated frequency area and voice onset time,using CSL computer*based voice analysis system,would provide objective evidence for lamprophony analysis after wearing complete denture.Maxillary denture with thinner base in tongue and palate regions better promotes the recovery of patient's phonetic function.