Objective To explore the effects of prenatal infection on the development of lungs by dynamic observation of morphology and numbers of inflammatory cells in lungs of rat pups exposed to antenatal inflammation.Methods Pregnant Wistar rats were randomly divided into experimental group and control group.Pregnant rats of both groups were intraperitoneal injected with either lipopolysaccharide (LPS) 2.5mg/kg or the same volume of normal saline on embryonic day 19 and 20, respectively, and were allowed to term deliver.Onday1, 3, 7, 14, 21and28 (D1, D3, D7, D14, D21 andD28), eight pups of each group were killed by 10％ chloral hydrate (1ml/kg) and lungs were collected.The numbers of myeloperoxidase (MPO) and CD68 as markers of both neutrophils and macrophages were counted.Morphometric assessments were performed by measuring the mean numbers of alveolar, the mean ratio of alveolar surface area to per tissue and the mean thickness of alveolar septum.Results With the increasing of postnatal days, the mean numbers of alveolar and the mean ratio of alveolar surface area to per tissue in both groups increased.The mean thickness of alveolar septum got thinner and the numbers of inflammatory cells decreased.On D1, D3, D7 and D14, the mean alveolar numbers of the experimental group (88, 89, 102 and 127 /mm2) were significantly less than those of the control group (105, 109, 123, 156/mm2), P =0.024, 0.009, 0.013, 0.004, respectively.On D1, D3 and D7, the mean ratios of alveolar surface area to per tissue were significantly larger (0.552,0.603 and0.533) than those of control group (0.478, 0.485 and 0.404), P=0.003, 0.001, 0.000, respectively.On D1 and D3, the alveolar septum thickness was significantly thinner (12.30 and 10.75 μm) thanthatin control group (17.13 and 16.13 μm), P=0.000, 0.000, respectively.On D1, D3, D7 and D14, the mean numbers of neutrophils of the experimental group (681, 582, 393 and 379/mm2) were significantly more than those of control group (164, 211, 145 and 179 /mm2), P =0.000, 0.000, 0.000,0.003, respectively.On D1, D3 and D7, the mean numbers of macrophages (613, 578 and 337 /mm2)were significantly more than those of control group (170, 182 and 127, /mm2) , P=0.000, 0.000, 0.000,respectively.Conclusion Prenatal infection results in larger and fewer alveolars and more inflammatory cells in lungs of rat pups.With the increasing of postnatal days, the alveolar morphology was similar to the controis.

Background Congenital cataract is the major cause of blindness in children with plentiful clinical manifestations and closely linked with genetics. Objective Present study was to investigate the classification of congenital cataract in Yunnan province.Methods The manifestation characteristics of 184 eyes of 116 patients with congenital cataract in Yunnan province were analyzed.The relationship of performance of various types of congenital cataract between phenotype and hereditary feature were explored. Results All of the 116 congenital cataract eyes from 116 patients were divided into ten types based on the clinical appearance,including the complete cataract,nuclear cataract,posterior polar cataract,anterior polar cataract,coralliform cataract,coronary cataract,pulverulent cataracts,lamellar cataract and blue cataract.Bilateral nuclear cataract and unilateral entire cataract is most prevalent in these patients.Blue cataract and coralliform cataract belong to the less types.Forty-four in 116 cases were found to have the hereditary history and determined as autosomal dominant inheritance.Sporadic cases were determined in 72 cases.Conclusions The analysis of phenotype of the hereditary congenital cataract offers some clues to the classification of congenital cataract.

Objective To assess the role of intervention of dexmedetomidine in lung tissue and plasma of septic rats induced by lipolysaccharide.Methods Forty SD rats weighing 250-300 g were divided into 4 groups:control group (n =10)with saline (1 ml·kg-1·h-1 )infused through the tail veins of rats for 6 h;dexmedetomidine (DEX)group (n =10)with dexmedetomidine,injected 6.5 μg ·kg-1·h-1 for 10 min followed by 5 μg·kg-1·h-1 ,continuously infused through tail veins for 6 h;li-polysaccharide (LPS)group (n = 10 )with lipolysaccharide (7.5 mg/kg)infused through the tail veins of rats;LPS+DEX group (n =10),after infusion of LPS,rats were treated with dexmedeto-midine (bolus 6.5 μg·kg-1·h-1 ,10 min;5 μg·kg-1·h-1 ,continuous infusion)through the tail veins for 6 h.ELISA and Western blot were performed to assess the protein expression of IL-1,IL-6, TNF-αand TLR4;the wet/dry ratio (W/D)of lung tissue in each group was measured and the injury scores were recorded through the Murakami method.Results There was no statistical significance between the control group and DEX group in plasma level of inflammatory factors,pulmonary TLR4 expression,wet/dry ratio and injury score of lung tissues,however,compared to the control group, there was a significant elevation in the above-mentioned biomarkers,W/D and injury score of lung tis-sue (P <0.01).Compared to the control group,there was no statistical significance in the LPS+DEX group.Compared to the LPS+DEX group,the biomarkers mentioned above,W/D and injury score of lung tissues were significantly elevated in the LPS group (P <0.01).Conclusion The irrita-tion of LPS can trigger the elevation of inflammatory factors in plasma,TLR4 expression in lung tis-sues in rats,while the intervention of dexmedetomidine can significantly alleviate this tendency. Dexmedetomidine can suppress the inflammatory reaction and pulmonary edema in septic rats.

Objective To explore the CT and MRI manifestations and diagnosis of primary small intestinal lymphoma( PSIL) .Methods The CT or MRI in 28 cases of PSIL confirmed by surgical pathology were retrospectively analyzed.Results 28 PSIL patients were confirmed to be non-hodgkin's lymphoma,17 cases were found in terminal ileum or ileocecal junction,11 cases were found in jejunum,near and the middle ileum.All had different degree of bowel wall thickening;CT scan displayed soft tissue density,contrast enhanced CT images demonstrated mild-to-moderate enhancement,uniform enhancement;PSIL was manifested as thick intestinal wall or a mass with slightly hypointensity signal on T1 weighted image,hyperintensity on T2 weighted images,hyperintensity on DWI images and mild to moderate homogeneous enhancement on contrast enhanced T1 weighted images.12 cases of aneurismal dilatation;manifestations were irregular round thickening of intestinal wall with infiltration with expansive;10 cases of infiltrating type,mainly for bowel wall thickening;6 cases of polypoid mass type,density of soft tissue mass,stenosis lumen.Conclusion CT and MRI has obvious advantages in the diagnosis of PSIL, plays an important role in the diagnosis and differential diagnosis.

Objective To understand the personality and self-rated health status and the relationship between them in medical students. Methods By multi-stage cluster random sampling, 878 medical students were selected to investigate the personality by Eysenck Personality Questionnaire-Revised (Short Scale For Chinese) and the health status by self-rated health measurement scale (SRHMS1.0). Results The score of L dimension among male and female medical students was significantly higher than that of nation- wide young population. The scores of E, N and P dimensions had no significant difference between them. The score of P dimension of male students was significantly higher than that of female students. The score of students' SRHMS was 339.28?41.19, which was higher than that of general population in China. The score of physical health subscale among male and female students was 144.90?11.41 and 142.73?11.36, respectively (t=2.829, P=0.005). The scores of SRHMS and its three subscales were significantly different in medical students with different personality traits except the score of physical health subscale in students with different grades of P dimension. The scores of E and L dimensions had significantly positive correlation with SRHMS, and the scores of N and P dimensions had significantly negative correlation with SRHMS. Conclusion The personality traits of medical students were remarkably influenced on their self-rated health. To encourage medical students to reform the wholesome personality will be helpful to their health.

0.05 . In combined test, the combined OR= 3.164 , OR = 3.209 and its 95% confidence interval was in 1.390 ～ 7.200 and 1.747 ～ 5.900 , respectively. CONCLUSION: The case fatality rates in combination group were significantly lower than those in single somatostain group. The efficacy of combination group was superior to that of single somatostain group.

Objective To discuss the management of anesthesia for video-assisted laser operation under rigid bronchoscopy.Methods A retrospective review was made on anesthetic records of 15 cases of video-assisted operation under rigid laser bronchoscopy in this hospital from September 2002 to December 2006.According to the ASA classification,there were 7 cases of class Ⅱ,7 cases of class Ⅲ,and 1 case of class Ⅳ.The diagnosis included 13 cases of tumor and 2 cases of cicatricial stricture.All the patients had a forced expiratory volume in 1 second(FEV1) predicted lower than 70%. By using intravenous fast induction,the propofol,fentanyl,and vecuronium or rocuronium were injected successively.Then a rigid bronchoscope was inserted into the trachea under orthoptic laryngoscope.During the operation a total intravenous anesthesia(TIVA) was maintained.Before induction and 5～10 min after operation,we monitored artery blood gas(ABG) levels.Immediately following the operation the end-tidal CO2 pressure(PETCO2) was measured.Results Hemodynamics parameters were not significantly different between preoperatively and intraoperatively.During the operation,the pH value was 45 mm Hg in 5.All the patients presented normal blood pressures and heart rates. Conclusions During video-assisted laser operation under rigid bronchoscope,anesthesia with normal frequency jet-ventilation and artery blood gas monitoring is safe and reliable.

Objective To study the application effect of health education guided by the theory of cross-theoretical model in the training of the first aid training in the basic units of the plateau. Methods Choosing 386 long-term presence of plateau soldiers, and divided them into the control group and the experimental group, the control group was educated by traditional method, in the experimental group, the health education was carried out with the trans-theoretical model, nursing experts gave them targeted intervention. The number of groups at each stage was analyzed in different stages, the same to examination results and pass rate. Results After 6 months of intervention, there was a significant improvement in the mastering of the battlefield Five emergency technology of the experimental group and the scores were better than those of the control group (P<0.05). Theoretical results showed that pass rate of the control group was 89.1%(172/193), the experimental group was 99.5%(192/193), the difference between the two groups was statistically significant (χ2=7.129, P=0.039). In the survey of technical operation, ventilation, hemostasis, bandaging, fixing and handling examination pass rate of the control group respectively were 88.1%(170/193), 89.1%(172/193), 89.1%(172/193), 88.1%(170/193), 88.6%(171/193), the experimental group were 99.5%(192/193), 97.9%(189/193), 99.5%(192/193), 96.9%(187/193), 97.4%(188/193), there were significant differences between the two groups (χ2=7.896-12.759, P=0.001-0.043). Conclusions Cross theoretical model has good effect on the application ofFiveemergency technology training in the high altitude troops battlefield, and can effectively improve the troops self- help and mutual aid capabilities, it is worthy of popularization and application.

Background Certain relationship has been found between phenotype and genes mutation of congenital cataract.It is clear that different genetic mutations can cause the same complication in congenital cataract,meanwhile,different complications may be caused by the same gene mutation.However,their mechanism is still remained unclear.Objective This study was to observe the phenotype of congenital cataract accompanied with iris dysplasia.Methods Fifteen patients with congenital cataract accompanied with iris dysplasia were included in this study.The slit lamp,gonioscope and ophthalmoscope were used for the examination of the anterior ocular segment,the anterior chamber angle and fundus on all the patients.This study was approved by the Ethic Committee of Second People' s Hospital of Yunnan Province.Written informed consent was obtained from each patient or the custodian prior to any medical procedure.Results All the patients showed binocular involvement.Congenital nuclear cataract with whole coloboma of iris was seen in 7 cases,and 2 cases showed an entire cataract associated with incomplete coloboma of iris.Entire cataract with aniridia was diagnosed in 5 patients,and suture cataract complicated with aniridia was in 1 patient.Conclusions Some regular patterns can be implied between the morphological type of cataract and iris dysplasia,which may be helpful for further study of these diseases.

ObjectiveTo explore the relationship between the changes of neuro-electrophysiology and prognosis in children with Guillain-Barr? syndrome(GBS).MethodsThirty-eight children with GBS were divided into group A(rapid recovery,n=16) and group B(slow recovery,n=22) according to the time required for podosoma motor function recovery,at the same time,they were divided into the better prognosis group(n=22) and the worse prognosis group(n=16),for analyzing the difference between group A and B in terms of age,preceding infections,maximal Hughes grades and neuro-electrophysiology including motor conduction velocity(MCV),distal complex muscle action potential(dCMAP) and F wave,and investigating the related factors with the prognosis of GBS.Results1.MCV of tibial nerve was(40.2?2.53) m/s and(33.4?2.46) m/s in group A and group B,respectively;MCV of peroneal nerve was(45.2?3.23) m/s and(38.3?2.16) m/s in group A and group B,respectively,and the difference between group A and group B was significant(Pa0.05);abnormal rate of F wave(68.42%) was higher than abnormal rate of MCV(42.11%) and dCMAP(42.11%)(Pa