Described in this paper are the contents and objectives of embedded information service for research on aviation medicine in light of information access, identification and analysis in persons engaged in research on aviation medicine.

Objective To establish the rabbit brain death model,and observe the change of kidney function and morphology in the brain death rabbits,fully evaluate the possibility of transplantation surgery carried out with brain death donor kidney.Method 40 male healthy New Zealand rabbits were randomly divided into sham group (n =20) and brain death group (n =20),and each group further was divided into four groups according to 2,4,6 and 8 h after brain death groups.At the end of the experiment,the blood samples and kidney tissues were collected.The level of blood urea nitrogen(BUN),serum creatinine (Cr) and the apoptosis of kidney cells were determined by automatic biochemistry analyzer and TUNEL method,respectively.The morphology changes of liver were detected by HE staining.Result Although BUN values were with no obviously alteration (P＞0.05) within 8 h after brain death,the renal Cr levels in the states of 2,4 and 8 h (P＜0.05) brain death were found significantly increased compared with shamed groups.The denaturalization in the epithelial cells of renal tubule,glomerulus atrophygradually,swelling and vacuolation of epithelial cells,edema in the interstitium and inflammatory cell infiltration and partly occlusion in proximal convoluted tubule gradually emerged in the brain dead groups.The inflammatory factor intercellular adhesion molecule (ICMA) and the apoptosis index in brain dead groups increased in a time dependent manner but the expressions of protective factor HSP70 conducted a contrary tendency.Conclusin Brain death could lead to the damage of kidney function and morphology and this injury aggravated in a time dependent manner.The alterations might be relevant to the production of inflammatory factors.Within 8 h after brain death there were obvious changes in the kidney function and morphology,which provide experimental basis for the rational use of brain death donor kidney transplantation.

binding,cellular organelle membrane,and cellular metabolic process of GO enrichment.For the KEGG pathways, the target genes mainly concentrated on the focal adhesion pathway.Conclusion There is a different expression of novel microRNA between SLE and NC groups.The target genes from differently-expressed novel microRNA may play an important role in the pathogenesis of SLE and clinical symptoms and may be the unique target for further research.

ObjectiveToinvestigatethecorrelationofobstructivesleepapnea(OSAS)andsilentbrain infarction (SBI) in elderly population. Methods A total of 1658 old subjects aged 60 in Beijing and Qingdao w ere screened. Polysomnography (PSG) w as used to conduct the diagnosis and grade of OSAS. MRI w as used to diagnose SBI. Results In al elderly subjects, the prevalences of OSAS and SBI w ere 32.1% and 22.4%. There w ere significant differences in the constituent ratio of the patients w ith hypertension and diabetes, as w el as apnea-hypopnea index (AHI), oxygen desaturation index (ODI), mean oxygen saturation and the low est oxygen saturation betw een the patients w ith OSAS of different severity and the control group. With the increased severity of OSAS, the incidence of SBI increased significantly. The incidences of patients w ith non-OSAS and mild, moderate and severe patients w ith OSAS w ere 13.2%, 30.5%, 43.5%, and 68.8%, respectively. There w as a significant difference betw een the 2 groups ( χ2 =13.365, P=0.004). Multivariable logistic regression analysis showed that hypertension (odds ratio [OR] 2.254, 95%confidence interval [CI] 1.325 to 8.347;P=0.002), diabetes melitus (OR 1.893, 95%CI1.471-8.432;P=0.003) and AHI ≥15 times/h (OR 3.106, 95%CI 1.583-12.571; P<0.001) were the independent risk factors for SBI in elderly population. Conclusions The incidence of OSAS w as higher in the elderly population aged over 60. The incidence of SBI in patients w ith OSAS w as significantly higher than that in patients w ith non-OSAS, and w ith the aggravation of OSAS, it show ed an increasing trend. Moderate to severe OSAS w as an independent risk factor for SBI in elderly population.

Objective To explore the clinical effect of three doses of mifepristone on patients with dysfunc-tional uterine bleeding.Methods 150 patients with dysfunctional uterine bleeding were chosen,and they were randomly divided into 3 groups,including low dose group (50 patients),middle dose group (50 patients)and high dose group (50 patients).All patients adopted routine treatment.On the basis of this,the low dose group received 6.25mg/d mifepristone,the middle dose group received 12.5mg/d mifepristone,the high dose group received 18.25mg/d mifepristone,continued 6 months.The influence of follicle stimulating hormone (FSH),luteinizing hor-mone (LH),estradiol (E),progesterone (P),volume of uterine and endometrail thickness of patients were observed. Results After treatment,the FSH,LH,E and P levels in the three groups were significantly decreased compared with before treatment (FSH:t=4.406,5.329,3.610,LH:t=4.563,6.134,4.455,P=0.000,0.000,0.000;P=0.000, 0.000,0.000;E:t=7.173,6.815,7.018,P=0.000,0.000,0.000;E:t=2.367,6.315,4.351,P=0.020,0.000, 0.000),and the difference were statistically significant (all P<0.05).Before and after treatment,FSH,LH,P levels among the three groups had no obvious differences (P>0.05 ).Compared with the low dose group,E levels in the middle dose group and high dose group significantly decreased(t=3.850,2.085,P=0.000,0.004).Before and after treatment,the uterine volume among the three groups had no significant difference (P>0.05 ).After treatment,the functional uterine bleeding symptoms were significantly relieved in the three groups,the effective rate was 100%.The recurrence rate of the low dose group was 32%,which was significantly higher than 8%and 10%of the middle dose group and high dose group.The amenorrhea rate of the middle dose group and high dose group(6% and 2%)was significantly lower than that of the low dose group (46%).Conclusion The treatment of 12.5mg/d mifepristone is effectively adapted to patients with dysfunctional uterine bleeding.

OBJECTIVETo observe the microstructural changes of olfactory mucosa in rat model with acute rhinosinusitis leading to olfactory dysfunction, and to provide foundation for further exploration of corresponding mechanism.

METHODSOn the basis of prior successfully established rat model of acute rhinosinusitis through inoculation with Streptococcus pneumoniae and with the help of merocel strips, one hundred healthy SD rats were randomly divided into experimental group (80) and control group (20). After inoculation, every 20 rats in the experimental groups were sacrificed in first week, second week, third week and fourth week respectively; and all rats in the control group were sacrificed in first week after the inoculation. Before the rats were sacrificed, the method called "buffed food pellet test, BFPT" was adopted, which was advanced by professor Nathan, to measure the rats' olfaction,and the time of every rat spending in finding out the food pellet was recorded and analyzed. BFPT showed that the rats in experimental group spent (402.9 ± 9.3), (453.7 ± 7.3), (351.9 ± 8.9), (278.7 ± 8.1) s respectively in searching the food pellet, which were more than the rats in the control group [(178.3 ± 6.6) s]. Then the olfactory mucosa was collected under anatomic microscope from all the rats to make frozen section and detect the changes of mature olfactory receptor neurons (ORN) and olfactory ensheathing cells (OEC) by immunofluorescence technique.

RESULTSThe reduction of ORN in various degrees could be detected in the tissue samples of olfactory mucosa among all the rats in experimental group, with a tendency to become thinner in the thickness of epithelial lamina during the inflammation developing course. This kind of pathology was most marked in the second week and it gradually developed into the stage showing the lesion being the feeblest in the forth week following the beginning of modeling. Although the number of olfactory ensheathing cells appeared reduction in the first week following the beginning of modeling as well,it came to increase from the second week before olfactory receptor neurons and almost completely recovered to normal in the fourth week. In addition, some olfactory ensheathing cells could be detected in the tissue samples of olfactory mucosa among all the rats in experimental group.

CONCLUSIONSBoth mature olfactory sensory neurons and olfactory ensheathing cells appeared to reduction when sinonasal mucosa taken place acute rhinosinusitis. But the number of olfactory ensheathing cells increased faster than olfactory sensory neurons. In addition, some olfactory ensheathing cells could be detected in the olfactory epithelium.

Animals ; Disease Models, Animal ; Male ; Olfaction Disorders ; etiology ; pathology ; Olfactory Mucosa ; ultrastructure ; Olfactory Receptor Neurons ; Rats ; Rats, Sprague-Dawley ; Rhinitis ; pathology ; Sinusitis ; pathology ; Smell

In the present study,healthy adults who had been residing at the average altitudes of 6,2260,and 2800 m for 10 years were recruited,and the number of red blood cells,the levels of hemoglobin,and HbA1C were tested.The results showed that the level of HbA1C in altitude 2800 m group was higher compared with the other 2 groups(5.80％ ± 0.50％ vs 5.39％ ± 0.47％,P＜0.05 ).Therefore,this difference should be considered when diagnosis and treatment for diabetes mellitus were made in the region.

Background Haze formation is a key factor of vision reduce following corneal refractive surgery.Transforming growth factor-β1 (TGF-β1) and α-smooth muscle actin (α-SMA) are documented to participate in haze formation.Laboratory study showed that bevacizumab can not only inhibit corneal neovascularization,but also promote the healing of corneal epithelial basement membrane.However,the impact of bevacizumab on corneal healing after Off-flap epipolis laser in situkeratomileusis (Off-flap Epi-LASIK) is unclear.Objective The present study was to investigate the inhibition effect of bevacizumab on corneal haze after off-flap Epi-LASIK and its active mechanism.Methods Off-flap Epi-LASIK was performed in 24 adult pigmented rabbits and these rabbits were randomized into three groups.Bevacizumab of 0.1 ml (2.5 mg) was subconjunctivally injected 10 minutes after surgery in 16 rabbits and the same amount of bevacizumab was repeatedly injected 4 days after the initial injection in 8 eyes of 16 eyes.In addition,equivalent amount of normal saline solution was used in the same way in the other 8 rabbits.Another 2 health rabbits were used as the blank controls.Operative eyes were examined by slit lamp biomicroscope daily after surgery and haze was scored based on SundarRayde criteria.Corneas were obtained 4 weeks after operation for hematoxylin & eosin and periodic acid Schiff staining.Expressions of TGF-β1 and α-SMA in corneal tissue were detected by immunochemistry.Results Corneal epithelium healed completely in all eyes 4-5 days after operation.The haze scores were lower in the bevacizumab single injection group and repeat injection group than those in the normal saline solution group (P＜0.05) in 1 week and 4 weeks after operation.However,no significant difference was seen in the haze scores between the bevacizumab single injection group and repeat injection group (P ＞ 0.05).The hostopathological examination showed that the fibrosis response of cornea tissue was slight in the bevacizumab single injection group and repeat injection group comparison with the normal saline solution group.At 1 week after operation,the expression levels of TGF-β1 were (49.8 ± 2.1) PU and (38.6 ±4.4) PU in the bevacizumab single injection group and repeat injection group,and those of 4 weeks were (37.7 ±4.8) PU and (28.3 ± 3.5) PU,indicating significant decrease in the TGF-β1 expression compared with (65.1 ±5.3) PU and (51.6±2.2) PU of the normal saline solution group in both 1 week and 4 weeks (P＜0.01).The expression levels of α-SMA in corneas were (67.2±10.0) PU and (32.7±3.1) PU at 1 week,and (34.2±5.7) PU and (22.8±3.0) PU at4 weeks after operation in the bevacizumab single injection group and repeat injection group,which were significantly lower than (87.8±7.7) PU and (59.4±5.6) PU in the normal saline solution group in both 1 week and 4 weeks (P＜0.05).Meanwhile,the expression levels of TGF-β1 and α-SMA were declined in the bevacizumab repeat injection group compared with single injection group (P＜0.01).Periodic acid Schiff staining exhibited that the basement membrane of cornea was intact and continued in bevacizumab injection group.But corneal basement membrane was discontinuous in the normal saline solution group.Conclusions Subconjunctival injection of bevacizumab downregulates the expressions of TGF-β1and α-SMA in cornea after Off-flap Epi-LASIK and thus prevents haze formation.

OBJECTIVETo evaluate the efficacy and safety of etanercept plus Tripterygium wilfordii polyglycoside (TWP) in elderly patients with active rheumatoid arthritis (RA).

METHODSTotally 46 elderly patients with active RA were randomly assigned to the treatment group (22 cases) and the control group (24 cases). All patients received subcutaneous injection of etanercept, 25 mg each time, twice per week. The dosage was reduced to once per week 3 months later. Patients in the treatment group took TWP Tablet (10 mg each time, three times per day), while those in the control group took methotrexate (MTX), 10 mg each time, once per week. The whole course lasted for 24 weeks. Patients' rest pain, tender joint number, swollen joint number, health assessment questionnaire (HAQ), patients' global assessment, physicians' global assessment, erythrocyte sediment rate (ESR), C reactive protein (CRP), rheumatic factor were assessed at week 0, 4, 8, 12, and 24. The curative effect was statistically evaluated by the United States Institute of Rheumatology ACR20, ACR50, and ACR70 improvement criteria. Meanwhile, any adverse event was recorded and evaluated.

RESULTSTotally 41 completed the trial, and 5 dropped off (3 in the treatment group and 2 in the control group). Compared with the control group, there was no statistical difference in ACR20, ACR50, or ACR70 in the treatment group (P > 0.05). Compared with before treatment in the same group, there was some improvement in tender joint number, swollen joint number, visual analogue scale (VAS) for patients' global assessment, VAS for physicians' global assessment, ESR, CRP, and HAQ between the two groups, showing statistical difference (P < 0.05). Compared with the control group in the same phase, there was no statistical difference in the treatment group (P > 0.05). There was no statistical difference in the occurrence of adverse events between the two groups.

CONCLUSIONSEtanercept plus TWP could achieve equivalent therapeutic effect to that of Etanercept plus MTX. The two regimens could improve clinical signs, symptoms, and QOL related to RA. They were well tolerated in the treatment of elderly patients with active RA.

Aged ; Antirheumatic Agents ; therapeutic use ; Arthritis, Rheumatoid ; drug therapy ; Drug Therapy, Combination ; Etanercept ; Female ; Glycosides ; therapeutic use ; Humans ; Immunoglobulin G ; therapeutic use ; Male ; Middle Aged ; Receptors, Tumor Necrosis Factor ; therapeutic use ; Treatment Outcome ; Tripterygium ; chemistry

OBJECTIVETo evaluate the therapeutic efficacy of sorafenib in combination with microwave coagulation therapy (MCT) and trans-arterial chemoembolization (TACE) in patients with recurrent liver cancer.

METHODSFrom January 2006 to January 2010, 90 patients with recurrent hepatocellular carcinoma (HCC) were treated with MCT and TACE in our hospital. The treatment group received sorafenib + MCT + TACE, and the control group received MCT + TACE.

RESULTSRR of the treatment group was 66.7%, which of the control group was 52.0% (P > 0.05). DCR was 83.3% in the treatment group and 64.5% in the control group (P < 0.05). Through a comparison of survival curves along with the extension of time, the survival rates of the two groups were decreased, but the treatment group (group 1) had a significantly higher one than the control group (group 2), with a statistically significant difference (P < 0.05).

CONCLUSIONSorafenib combined with MCT and TACE can improve the disease control rate and prolong the survival in patients with recurrent HCC.

Adult ; Aged ; Antineoplastic Agents ; therapeutic use ; Carboplatin ; administration & dosage ; Carcinoma, Hepatocellular ; drug therapy ; surgery ; therapy ; Catheter Ablation ; methods ; Chemoembolization, Therapeutic ; Combined Modality Therapy ; Doxorubicin ; administration & dosage ; Female ; Fluorouracil ; administration & dosage ; Follow-Up Studies ; Humans ; Iodized Oil ; administration & dosage ; Liver Neoplasms ; drug therapy ; surgery ; therapy ; Male ; Microwaves ; therapeutic use ; Middle Aged ; Neoplasm Recurrence, Local ; Niacinamide ; analogs & derivatives ; therapeutic use ; Phenylurea Compounds ; therapeutic use ; Protein Kinase Inhibitors ; therapeutic use ; Remission Induction ; Survival Rate