Objective To explore the value of conventional and contrast‐enhanced ultrasound(CEUS) in the diagnosis of tumors in front of the orbit equator . Methods Clinical data included conventional ultrasound and CEUS image of 133 cases (156 eyes) with orbital lesions were analyzed retrospectively . All lesions were confirmed by surgical pathology or clinical cure ,which included 26 cases of cystic lesions (epidermoid cysts ,dermoid cysts ,sebaceous cysts and mucous cysts) ,29 cases (30 eyes) of orbital hemangioma ,13 cases ( 16 eyes ) of inflammatory pseudotumor ,11 cases of lacrimal gland pleomorphic adenoma ,3 cases (5 eyes) of lymphoepithelial lesion ,36 cases (53 eyes) of malignant lymphoma ,5 cases of meibomian gland carcinoma ,4 cases of lacrimal gland adenoid cystic carcinoma ,3 cases of malignant melanoma and 3 cases of basal cell carcinoma . Results CEUS of benign cystic lesions showed the tumors were enhanced inhomogenously . Most CEUS of benign tumours displayed?slow in and slow out ,and high enhancement when reached the peak but the size of images had no change . While CEUS of malignant tumours showed?fast in and fast out ,homogeneous or inhomogeneous high enhancement and ill‐defined or irregular shape ,and volume increased compared to two‐dimensional ultrasound when reached the peak .Some other former district orbital lesions ,such as cystic lesion ,cavernous hemangioma ,pleomorphic adenoma and malignant lymphoma ,had their own ultrasound features . Conclusions CEUS combines with conventional ultrasound may contribute to the qualitative diagnosis of tumors in front of the orbit equator .

Background Excimer laser corneal refractive surgery is one of the major methods to correct refractive error.Centration of the ablation zone is an important factor that affects visual quality after surgery.The pupil center and its shift is a major factor to determine the ablation center.Therefore further study on pupil centroid shift with illumination level alteration is needed.Objective This study aimed to study the characteristics of the pupillary centroid shift along with the change of pupil size under the different illumination conditions and the possible clinical application of the curve of pupillary centroid shift in exeimer laser corneal refractive surgery.MethodsThe variation of pupil size induced by illumination and the changes of pupil center were measured on 114 moderate myopia eyes of 57 subjects with Astra MaxTM Corneal Topographer.Illumination of placido target and image snap model of the topographer was customized to provide 5 illumination levels as follows:0.8,4.4,18.9,82.3,355.0 Lx.Vectorial analysis was used to graph the change of pupil center related to the Coaxially Sighted Corneal Reflex (CSCR).Raw data is converted to relative value to analyze the pupiilary centroid shift.The mean relative change of the pupil size(△P)and the mean of relative pupillary centroid shift(△C)in the form of percentage were used to attenuate the variation among subjects.The original value of illumination(darkest)is defined as 0％ and maximum value(lightest)was as 100％.Results With the increase of illumination,the shift of the pupil center towards nasal side when pupil constrict was found.The mean change of pupil size under the 5 illumination levels were 0,(1.28 +0.40)mm,(2.34 ±0.53)mm,(3.34+0.54)mm,(4.03 ±0.56)mm respectively,and the △P values was 0％,32％,58％,83％,100％ respectively.The mean of pupil centroid shift under the 5 illumination levels were 0,(78±33)μm,(116±60)μm,(143 ±66)μm,(170±71)μm respectively,and the △C was 0％,46％,68％,84％,100％respectively.There was a linear relation between the relative pupil centroid shift and the relative change of pupil size (r=0.980,P=0.025).The amount of pupil centroid shift has a positive correlation with amplitude of the change of pupil size(r=0.480,P＜0.01).Conclusion Pupil center shifts with the change of pupil size.The linear relation between relative pupil centroid shift and the relative change of pupil size can be applied in eximer laser corneal refractive surgery to improve the visual quality with customized ablation center location.

A method to assess library-holding journals according to their weighted citations was proposed in light of the actual needs of users for core journals, the use of library-holding journals and references by authors in different orders of precedence.The Western journal of rheumatology, highly cited by authors of Second Military Medical U-niversity, were assessed using this method, showing that this method is better than the citation analysis-based tra-ditional method in assessment of journals.

The information commons concept-based stereoscopic resources support system for academic library with brand-new connotations and its application were proposed according to the increasing development and expansion of informationization, networking and digitization in different social fields, the significant change in disseminating methods of information resources, and the need of readers for library service.

OBJECTIVE:To observe the efficacy and safety of olanzapine combined with ziprasidone in the treatment of refrac-tory schizophrenia in elderly patients. METHODS:120 elderly patients with schizophrenia were randomly divided into control group and study group. Control group was orally treated with Olanzapine tablet 10-20 mg,once a day;study group was orally treat-ed with Ziprasidone hydrochloride capsule 80-120 mg,twice a day+Olanzapine tablet(the usage was the same as control group). The clinical efficacy in 2 groups was evaluated after 2 weeks,PANSS score,FPG,2 h PG,TC,TG,HDL-C,LDL-C,body weight, BMI before and after treatment and incidence of adverse reactions were observed. RESULTS:There were no significant difference in the total efficacy and incidence of adverse reactions between 2 groups(P>0.05). After treatment,the PANSS scores at different time point in 2 groups were significantly lower than before,and 12 weeks<8 weeks<4 weeks<2 weeks,the differences were sta-tistically significant(P<0.05),however,there was no significant difference between 2 groups(P>0.05). There were not signifi-cant differences in the indexes of blood glucose and lipid,body mass and BMI in study group before and after treatment (P>0.05);after treatment,the blood glucose after 8 and 12 weeks and LDL-C,TG,TC,body mass and BMI after 4,8 and 12 weeks in control group were significantly higher than before and study group same time,the HDL-C was significantly lower than before and research group,the differences were statistically significant(P<0.05). CONCLUSIONS:The efficacy and safety of both olan-zapine combined with ziprasidone and olanzapine alone in the treatment of refractory schizophrenia in elderly patients is similar, however,it is better than olanzapine alone in terms of controlling blood glucose and lipid.

Objective To summarize and evaluate the clinical features,therapeutic methods and prognosis of 197 cases with eating crayfish caused rhabdomyolysis in our hospital within July,2016 to August,2016.Methods Using retrospective method,197 rhabdomyolysis cases induced by eating crayfish were admitted into study.Data of epidemiological character,clinical features,therapy protocol and prognosis were collected and analyzed.Results All the patients had the experience of eating crayfish within 12h before the onset.Patients in this cohort had the common symptoms but varying degrees of myalgia,fatigue of the whole body muscles,and urine color change.Laboratory tests revealed:On day 1 of onset,serum myoglobin level had raised up to the peak with average level at (2 135 ± 1 547) μg/L (0-46 μg/L).Creatine kinase with average level at (4 657 ± 2 178) U/L (25-190 U/L);Aspartate transaminase with average level at 264 ± 83 U/L (10-45 U/L);Lactate dehydrogenase with average level at (1 457 ± 673) U/L (313-618 U/L),all these three markers reached peak on day 2,then gradually declined.All the patients recovered and discharged after relaxation,fluid infusion,alkalization of urine and dealing with the complications.Conclusion Timely diagnosis and treatment of the rhabdomyolysis syndrome induced by eating crayfish could indicate favorable prognosis in these patients from July,2016 to August,2016.

Background Choroidal melanoma(CM)is a common form of primary ocular cancer in adults.It is reported that indomethacin has inhibitory effect on many tumor in vitro and in vivo,but whether it can inhibit the growth of CM has not been published. Objective This study was to investigate the anti-tumor activity of indomethacin on the growth of human CM OCM-1 cell xenografts in nude mice. Methods OCM-1 cells were subcutaneously implanted on 24 SPF female BALB/C.nu/nu nude mice to establish ectopic models of human CM.The nude mice with the tumor 5 mm were randomly divided into 4 groups:untreated group,normal saline solution(NS) group,indomethacin 1 ms/kg group,indomethacin 2 ms/kg group.The 1 mS/kg or 2 ms/kg indomethacin was intraperitoneally injected for 14 consecutive days in indomethacin 1 ms/kg group and indomethacin 2 me/kg group respectively.and 0.2 ml of 2%NS-DMSO was used at a same way in the NS group.No any agent was used as the untreated group.The volume and weight of implanted tumor as well as inhibitory rates of indomethaein on tumor were calculated.The expression of ki67 and survivin proteins were measured with immunohistochemistry,and the expression of survivin mRNA in CM was assessed by RT-PCR. ResuIts The tumor of indomethacin treatment group was reduced in volume and weight with a significant difference between treatment group and control group as well as indomethacin 1 ms/ks group and indomethacin 2 ms/kg group(P＜0.05).The inhibitory rate of indomethacin 1 ms/kg and 2 ms/kg for tumor was 22.86%,48.00%respectively.The prolifiration index (PI)of ki67 in these 4 groups were (76.73±3.34)%,(73.30±2.95)%,(55.97±2.24)%,(32.87±2.91)%respectively,and significant difference was found in PI between indomethacin 2 mg/kg group and untreated group or NS group(P＜0.05),but there was not significant difference between indomethacin 1 mg/kg and 2 ms/kg group(P＞0.05).Compared with the control group,the indomethacin treatment groups showed the decreased expression of survivin protein and mRNA,and significant difference was found between indomethaein 2 ms/kg group and untreated group or NS group(P＜0.05),however,no significant difference was found between indomethacin 1 mg/kg and 2 mg/kg group(P＞0.05). Conclusion Indomethacin inhibits the growth of CM in nude mice through inhibiting the expression of survivin in the tumor and accelerating cell apoptosis and inhibiting tumor cell proliferation.

Objective Objective To discuss the teaching pattern of experimental classes,and to probe the deep development of the functional subject about experimental teaching and the approach of cultivating talents.Methods Student volunteers participated in a series of activities in the summer vocation including experimental design,implementation,results reports and discussion.Results The reflection of students for the learning pattern were as follows: providing a good opportunity of learning(100%);helpful for improving the abilities of finding and dealing with problems(87.50%);different from the past physiological labs including representing special subject characteristics(93.75%),more precise form(68.75%),excellent interaction between teachers and students(75%);improving the manipulation abilities(93.75%).Deficiencies: the experimental conditions were not good enough(68.75);the teachers should give more guidance in theory and techniques(50%).Conclusions The is a meaningful educational form.Under the new experimental teaching pattern,students could use basic medical knowledge and experimental techniques to design and accomplish experiments voluntarily.This pattern is propitious for cultivating integrated capabilities of students,helping them to learn the basic approach and technique means.And it will have much developing space in experimental education in future.

OBJECTIVE To investigate the ?-lactamase genes in 4 kinds of nonfermenting Gram-negative bacilli isolated from the 98th Hospital of PLA. METHODS Sixty strains of Acinetobacter baumannii,30 strains of Pseudomonas aeruginosa,19 strains of Stenotrophomonas maltophilia,and 15 strains of Flavobacterium were isolated from hospitalized patients.Nine kinds of ?-lactamases genes of TEM,SHV,OXA,CTX-M,PER,VEB,IMP,VIM and GES were analyzed by PCR and verified by DNA sequencing. RESULTS In A.baumannii and(P.aeruginosa),the positive rates of gene of TEM were 100.0% and 66.7%,respectively.SHV gene was positive in 18 of 60 strains of A.baumannii tested,17 of which were SHV-12 subtype ESBLs.The other was a new SHV type ?-lactamase nominated SHV-48.OXA gene was positive in 1 of 30 strains of P.aeruginosa tested,it was an OXA-10 subtype ESBLs.But the rest of genes were all negative. CONCLUSIONS There exist 4 kinds of(?-lactamase) genes at least in nonfermenting Gram-negative bacilli including TEM-1,SHV-12,SHV-48,and(OXA-10.)