Plant insect-resistantgenetic engineering hasopened a new way to prevent and cure against the insect pest incrop and wood productions. With the progresses instudies, many insect-resistantgeneswere cloned and characterized. The classification of most insect-resistantgenes from plant, the functionalmechanism and the applications of theplantinsect-resistantgenes, the problems and prospectsforusing the plant insect-resistant genes in genetic engineering was described.

Objective To investigate the effects of soluble CD40 ligand combined with LY294002,a specific inhibitor of phosphatidylinositol 3-kinase,on proliferation and invasion of gastric cancer cells (AGS ) and its potential mechanisms. Methods The effect of gradient concentration of sCD40L and its combination with LY294002 on cellular proliferation was determined using MTT assay. The ability of cellular invasion and migration was evaluated by wound healing and Transwell invasion assay. The protein expression of PI3K, p-Akt and vascular endothelia growth factor (VEGF) was tested by Western blotting. Results The inhibitory effect of cellular proliferation in sCD40L, LY294002 and sCD40L + LY294002 groups was 70. 1%, 65. 7% and 41. 3%, respectively, with significant difference (P<0. 05). And wound healing was also delayed in cells treated with sCD40L plus LY294002 when compared with those treated with sCD40L or LY294002. These results indicated that the inhibitory effect of cellular proliferation, migration and invasion was enhanced when cells were treated with sCD40L plus LY294002. The protein expression of PI3K,p-Akt and VEGF increased in cells treated with sCD40L, but reduced drastically in cells treated with sCD40L plus LY294002. Conclusion Inhibiting PI3K/Akt signaling pathway may enhance the inhibitory effect of proliferation, migration and invasion by sCD40L on AGS cells, which provide a new way for biochemical therapy of gastric cancer.

Objective To investigate the relationship between early brain menifestation such as white matter damage and ventriculomegaly detected by magnetic resonance imaging(MRI) and adverse neurodevelopmental outcome in preterm infants.Methods From March 15,2007 to April 12,2011,122 preterm infants accepted MRI examination 8-14 days after birth in Chinese People's Liberation Army 202 Hospital.Totally,115 preterm infants were followed up at 12 months old and mental development index(MDI) and psychomotor development index (PDI) score were measured.MDI＜70 was as mental dysfunction,-84 as borderline dysfunction and-114 as normal; PDI＜70 was as psychomotor dysfunction,-84 as borderline dysfunction and-114 as normal.The relationship between clinical characteristics of preterm infants,MRI abnormalities and neurodevelopmental outcome were analyzed by analysis of variance,LSD and Kruskal-Wallis H test.Results The 122 premature infants included 69 males and 53 females with the median gestational age of 32 weeks(28-36 weeks)and the median birth weight of 2050 g (1270-3110 g).In 24 premature infants with mentaldysfunction,the average gestational age [(28.7 ± 1.7) weeks],birth weight[(1520.1-44.8) g] and 1 min Apgar score (5.5 ± 0.8) were all lower than those in normal infants [n =59,(33.5 ± 2.2)weeks,(2240.4 ± 47.1) g and 7.1 ± 0.8],while the average mechanical ventilation time was longer [(20.4±5.8) dvs (5.6±2.7) d](t=2.37,2.49,2.13 and 2.44,P＜0.05).In 20 premature infants with psychomotor dysfunction,the average gestational age [(27.9 ±± 1.4) weeks],birth weight [(1515.6±43.7) g],1 min Apgar score (5.6t0.5) were lower than those in normal infants [n=62,(33.2±2.4) weeks,(2264.3±42.5) g and 7.2±0.6],while the mechanical ventilation time was longer [(18.2±4.7) dvs (5.3±2.2) d](t=2.28,2.52,2.09 and 2.38,P＜0.05).Among thirteen preterm infants with severe white matter damage,eleven and nine developed mental or psychomotor dysfunction respectively.Among eleven preterm infants with moderate and severe ventriculomegaly,seven and six developed mental or psychomotor dysfunction respectively.The more severe the white matter damage and ventriculomegaly,the higher the incidence of mental (H=16.23 and 14.33,P＜0.05) and psychomotor dysfuction (H =18.63 and 12.69,P ＜ 0.05).Conclusions White matter damage is common in preterm infants.Prognosis of preterm infants with mental and psychomotor dysfunction is related with the degree of white matter damage and ventriculomegaly.

Objective To observe clinical application of the apparent Shikani laryngoscope in difficult airway, so as to provide reference for basic-level hospitals to deal with difficult airway. Methods 50 patients with difficult airway were randomly divided into 2 groups:Shikani laryngoscope group (S) that direct laryngoscope group (M) . After conventional induction, patients in two groups were given endotracheal intubation with different intubation tools by the same anesthesiologist, then the intubation time and the one-time success rate of intubation were compared between two groups. The hemodynamics of patients, were observed in two groups,the HR,SBP,DBP and SPO2 at before (T0),during (T1),2 min after (T2) and 5 min after intubation (T3) were recorded. The complications including gingival and oral mucosa bleeding, sore throat, hoarseness were also recorded in two groups.Results During the process of intubation, the hemodynamic changes of patients had statistically significant difference between T0 and T1, T2,T3 subgroups ( <0.05),T2 and T3 subgroups ( <0.05) . The intubation had less influence on hemodynamics of patients in group S than M group,but the SPO2 and T0 had no significant difference between two groups ( >0.05) .Comared with M group,the one-time success rate of intubation was higher,and the intubation time was shorter in S group and there were significant differences ( <0.05) . There was no significant difference in the intubation complications between the two groups ( > 0.05), and this may be associated with small sample cases. Conclusion Compared with ordinary laryngoscope, Shikani laryngoscope has incomparable advantages in handling difficult airway and is convenient to apply,so it is worth popularizing in basic-level hospitals.

Since the oral rehydration salts solution(ORS) has been used to treat acute diarrhea of children, there are different kinds of ORS in order to satisfy the need of clinical work. They are the initial WHO-ORS, other substances-supplemented ORS and the reduced osmolarity ORS, each of which has their own efficiency and advantage.

Objective To investigate the advantage of two-way shrinking field radiotherapy with high intensity on non-small cell lung cancer(NSCLC) with stage Ⅳ.Methods Forty-two old NSCLC patients with stage Ⅳ were selected as our subjects who cannot performed surgery in the People's Hospital of binzhou.The patients all underwent CT-scan and the CT information was input TPS planning system in order to outlined gross tumor volume(GTV1) and make plan 1 with the first three-dimensional conformal radiotherapy 50 Gy/25 F～ 54 Gy/27 F.Then the 2nd CT-scan was performed to sketch GTV2 and make Plan 2.The detail of Plan 2 was that the amount of radiation was increased to the total 66 Gy/33 F ～ 70 Gy/35 F,two radiotherapy plans in accordance with 1 times/d,5 times/weeks;chemotherapy with paclitaxel 40 mg/m2,weekly radiotherapy before the intravenous infusion,once every 6 weeks.Results The median of reduce tumor size between GTV2 and GTV1 was 68.85 cm3 and relative reduce tumor size was 28.32％.As to short-term effect,there were 5 cases with total recovery(1 1.9％),25 cases with partly recovery(59.5％),10 cases with stable stage (23.8 ％),2 cases with development(4.8％).Local control rate regarding of tumor development was 71.4％ at 1-yrea period and 23.8％ at 2-year periods.Survival rate was 73.8％(31/42) at 1 year and 28.6％(12/42) at 2-year.Side effects included radiation esophagitis and radiation pneumonitis based,radiation-induced lung injury.Condusion The therapy scheme of two-way three-dimensional conformal radiation dosage treatment of NSCLC,GTV and re-plan outlined dosage can increase the target dose,radiation therapy to reduce side effects.

Objective]Help students to construct the system of TCM clinical thinking and to cultivate the ability of differential diagnosis and prescription. [Methods]In the late clinical teaching, make junior doctor with a high grade of students, graduate students, or some clinical experience as a research object, designing as a medical record has gradually evolved into a number of different medical records dynamic group, let students practice the tentacles medical records. [Results]Gradually,students learned to distinguish the different parties in the different clinical symptoms, and enhance the understanding of drugs and prescriptions. [Conclusion] The tentacles medical records practicing can cultivate the students' ability of dialectical thinking integration.

Objective:With the development of science and technology, large medical equipments have been universally applied in clinical diagnosis. It is important in hospital management to search for the way to obtain the maximum economic and social benefits by efficiently analyzing cost benefit of large medical equipment. Methods:To ascertain cost benefit of medical equipment by profit margin of investments and cost-redemption periods. Results:Proposals on purchase and management of department medical equipment were presented. Conclusion:Scientific evaluation and analysis on large medical equipment would play a positive role in purchase, use and economic returns of department medical equipment.

Objective To evaluate the long term efficacy of partial splenic embolization(PSE) for thalassanemia major. Methods 75 patients with thalassanemia major were treated with PSE and followed for 5 years,in which 30 patients with compelete data were studied.There were 8 patients with ? thalassanemia major,22 patients with ? thalassanemia major.The follow up indices included mean haemoglobin concertration,transfusion indices and blood transfusion consumption after embolization at 1,2,3,4,5 years. Results 26 of 30 patients showed a reduction in blood transfusion requirements and increase in haemoglobin level after embolization. The median blood transfusion requirements decreased from 1 200 ml/year before embolization to 200 ml/year; and the transfusion indices dropped from 6 times/year to 1 time/year. The mean of haemoglobin level increased from (60 9? 18 9)g/L to (82 3?17 4)g/L. The total effective rate was 86 7%,in which ? ,? thalassanemia major were 100 0%,81 8% respectively. Conclusion PSE is an effective therapeutic procedure for thalassanemia major, especially for ? thalassanemia major.

Objective To evaluate the efficacy of total glucosides of paeony(TGP) in the treatment of undifferentiated spondyloarthropathies(uSpA) and investigate its mechanism.Methods One hundred and sixteen cases of uSpA were randomly assigned to 2 groups,one group was treated with TGP and diclofenac sodium,the other group with SASP and diclofenac sodium.The efficacy and side effects of the two groups were compared after 12 weeks treatment.The level of IL-6,IL-10 and TNF-? was determined at the same time.Result After 12 weeks treatment,the major clinical manifest and the indexes of disease activity were no difference of statistical significance in the two groups.The incidence of parenterally side effects was 8.6% in TGP group,and 25.9% in SASP group.There was difference at statistical significance between the two groups(? 2 =6.042,P=0.014).Before treatment,the level of IL-6,IL-10 and TNF-? in the serum of two groups were no statistical difference,while there was obviously difference after 12 weeks treatment(t= 2.672,2.483 and 2.088,P=0.009,0.014 and 0.039).Conclusion The efficacy of TGP and SASP has no significant difference in the treatment of uSpA.But the incidence of parenterally side effects in the TGP group was less than SASP group.The mechanism of efficacy of TGP may be related to inhibiting the production of IL-6,IL-10 and TNF-?.