Soldiers are a group whose mental level are significantly low when special tasks in military exercises and actual combat training and other military stress. And one of main reasons caused in combat effectiveness reducing or potential non-combat loss is psychological and physiological and pathological damage which caused by military stress. This article reviewed the research about psychological stress reaction under military stress in the past years.

Objective To investigate the safety and feasibility of femoral vein thrombectomy for patients with acute deep vein thrombosis in the lower limbs.Methods During June 2003 to August 2006,a succession of 43 patients with acute deep vein thrombosis in the lower extremities received femoral vein thrombectomy in our hospital.An inferior vena cava filter was employed before the operation.Anticoagulation and regional thrombolysis were taken postoperatively.Analyse the data of operation procedure,curative effect and complications.Results The operation time ranged from 55 to 115 minutes with a mean of 92.6 minutes.Four of the patients received blood transfusion during the operation.The mean blood loss was 384.6 ml (100 to 1000 ml).Five patients showed transient fluctuation of blood pressure during the surgery.None of the patients had pulmonary embolism during and after the operation. Five patients developed lymph leakage from the incision at the inguinal area,and was cured in 1 week.One aged patient suffered from postoperative postatic pneumonia and was cured before being discharged;no other complications were found in this series.The thrombectomy achieved good outcomes in our patients.The edema and pain in the lower limbs were relieved quickly after the operation, the difference between the circumferences of the two legs decreaed from a median of 5.5 cm (thigh) and 4.0 cm (crus) to 1.5 cm and 1.0 cm (Z=-5.345,P=0.000 and Z=-5.461,P=0.000),respectively,32 of the patients received re-examination 6 months postoperation,none of them showed recurrent thrombosis.Conclusions Femoral vein thrombectomy is feasible and safe for serious acute deep vein thrombosis in the iliac and femoral veins.Patients can recover quickly after the operation.

Objective:To summarize the curative effect in treatment of Raynaud's syndrome with chemical thoracic sympathectomy(CTS) guided by X-ray since 2001.Methods: From March 2001 to August 2007,97 patients with Raynaud's syndrome(186 limbs) were treated by CTS.Guided by X-ray,a needle was punctured through the back skin to the second thoracic sympathetic ganglion beside the thoracic vertebrae and 2 mL of 5%(v/v) phenol was injected.Results: The first CTS treatment produced a good effect on 146 limbs with an effective rate of 78.5%(146/186).The same treatment was performed on the limbs with no effect 1-2 days after the first treatment and produced good effect on 13 limbs with an effective rate of 32.5%(13/40).The total effective rate of the patients who were hospitalized for the first time was 85.5%(159/186).Of the 97 patients,78 patients(80.4%) were followed up for 47 months on an average with an effective rate of 69.5%.And the rate of complications was 11.4% for pheumothorax,and 3.9% for hydrothorax.Hyperalgesia on axillary region and anterior chest wall;Horner syndrome and sinus bradycardia were rare.Conclusion: CTS is minimally invasive and effective in treatment of Raynaud's syndrome.

Objective To understand the blood pressure level of the aged in longevous area of Yunnan Province. Methods According to the forth census information,typical multistaged sample-survey was used for 15 counties (cities) with centenarians over 1/100 000 and the 3 counties (cities) with centenarians under 1/100 000. The blood pressure of people aged 60 and over were measured and the investigation questionnaire was filled in. Results The overall level of the blood pressure was systolic pressure (130.8?24.6) mm Hg and diastolic pressure (81.7?14.6) mm Hg. The systolic pressure increased in slow slope with the age growing, ranged 126.2-137.6 mm Hg, and higher in male than in female. The diastolic pressure was not affected by age growing. The difference of blood pressure in nationality was mainly affected by the latitude and the elevation. Conclusions With the age increasing, the blood pressure level of the aged people gradually increases.

To investigate the effect of the disequilibrium of calcium homeostasis on the apoptosis of MDCC-MSB1 cells induced by lanthanum chloride(LaCl3 ), MDCC-MSB1 cells was conventionally cultured in RPMI1640, which was tured for 24 h, MTT was utilized to detect the cell multiplication inhibition ratio,DNA ladder and TUNEL to detect apoptosis,the Fura-2/AM as the probe to detect the [Ca2+]i within cells. The results indicated when LaCl3 concen and [Ca2+]i also increased,and presented a dose-effectiveness relationship. LaCl3 could restrain the proliferation of MDCC-MSB1 cells,suggesting their apoptosis induced by changing [Ca2+]i.

SUMMARY Tuberculous aneurysm of the aorta is a very rare disorder. There have been only 50 reported cases of tuberculous aneurysm since 1895 till now, of which 88% were false aneurysms with majority being single in number. And only four were found to have multiple tuberculous aneurysms. The mean ages of the patients were 50?16 years. Treatment of tuberculous aortic aneurysm must be a combined medical and surgical approach. Once tuberculous aneurysm is identified, surgery must be performed promptly. The size of the aneurysm does not influence the need for surgery. A 70-year-old male with intermittent episodes of abdominal pain after receiving an inappropriate antitubercular therapy for pulmonary tuberculosis was diagnosed as multiple false tubercular aneurysm of abdominal aorta. An aneurysm of base 3.3 cm and greatest diameter 5 cm?6 cm was seen just above the opening of Coeliac trunk. Also at the dorsal aspect of abdominal aorta and superior mesenteric artery junction and ventral aspect of renal artery false aneurysms were seen, each with the size of 1 cm in diameter. Apart from antitubercular and antimicrobial treatment, first line surgery Endovascular Exclusion of Abdominal Aortic Aneurysm was performed for ruptured false abdominal aortic aneurysm. Even before the second line surgery, smaller abdominal aortic aneurysms got ruptured and the patient ’s party gave up further treatment. Finally the patient died of gastrointestinal haemorrhage.

Objective To investigate the influences of imatinib on Survivin gene expression in bcr-abl-transformed leukemia cells.Methods Firstly,PCR and Western blot were carried out to detected Survivin expression with imatinib treatment in 32Dcl3 and 32D-bcr-abl cell lines.Then the luciferase reporter plasmids containing human Survivin promoter as well as its deletion and site-directed mutation were constructed to identify the essential responsive elements for suppressing Survivin promoter activity by imatinib.Chromatin immunoprecipitation was performed to confirm the binding of c-myc to Survivin promoter.10058-F4,a small molecule c-myc inhibitor,was used to disrupt c-myc activity and evaluate its anti-leukemic effect combined with imatinib.Results Both of mRNA and protein level of Survivin in bcr-abl-transformed cells were downregulated upon imatinib treatment.The decrease of Survivin expression was controlled at the transcriptional level through a mechanism in which imatinib repressed survivin promoter activity by disturbing the interaction between c-myc and E-box elements.Interruption of c-myc activity by 10058-F4 exerted an anti-leukemia effect with enhancing the sensibility of K562/G01 cells to imatinib.Conclusion Imatinib down-regulates Survivin expression through c-myc-mediated transcription and interference with c-myc might be a potential utility for treatment of imatinib resistant leukemia.

Objective To discuss whether mild hyperuricemia can lead to kidney damage and the protection of decreased uric acid,through observing that hyperuricemia did damage to glomerulus endothelial function and cell proliferation of vascular smooth muscle in rats. Methods Fifty-four male SD rats were divided into four groups,the control group,model group (Oxonate),allopurinol group and Oxonate+allopurinol group.Rats were administered on a low sodium diet and their systolic blood pressure (SBP) were measured each 10 days.ELISA was used to detect rat plasma markers of endothelial function damage [nitric oxide (NO),type-1 plasminogen activator inhibitor (PAI-1),endothelin 1 (ET-1)] and cell proliferation of vascular smooth muscle[plateletderived growth factor (PDGF),cycloxygenase 2 (COX2),monocyte chemotactic protein-1 (MCP-1)],and the markers of inflammatory reaction[interleukin-18 (IL-18),tumor necrosis factor α(TNF-α)].PDGF and nitric oxide synthase (NOS) levels of rats were detected by immunohistochemical method.Renal tissue pathology of rats was observed. Results Compared to the control group,the plasmic concentration of COX2,ET-1,IL-18,PAI-1,PDGF,TNF-o,MCP-1 increased,and NO decreased significantly in rats of model group (all P＜0.05),expression of NOS significantly reduced and PDGF increased (all P＜0.05).Under light microscope,vascular wall thickening,intimal proliferation and lumen slight stricture without uric acid crystals in renal tissue were found in model group,which were obviously improved by using allopurinol. Conclusion Mild hyperuricemia can do damage to endothelial function of glomerulus and lead to vascular cell proliferation,which can be improved through decreasing uric acid.

Objective To investigate the effects of isoflurane anenthesia on myocyte enhancer factor 2(MEF2) signaling pathway in neonatal rat hippocampus. Methods Twenty-four 5-day-old SD rats of both sexes,weighing 10-13 g, were randomly divided into 2 groups ( n = 12 each): control group (group C) and isoflurane group (group I). In group I, 1.5% isoflurane in 100% O2 was inhaled for 6 h. Group C received no treatment.Three rata in each group were sacrificed at 2, 4, 6 h of isoflurane anenthesia and 24 h after isoflurane anenthesia (T1-4), and the hippocampi removed for determination of MEF2 mRNA, synGAP Ⅰ mRNA, Arc mRNA and synapsinⅠ mRNA expression (by PT-PCR) and synapsin Ⅰ protein expression (by Western blot).Results Compared with group C, the expression of MEF2 mRNA, synGAP Ⅰ mRNA, Arc mRNA and synapsin Ⅰ mRNA at T1-3 and synapsin Ⅰ protein at T2-4 was up-regulated in group I ( P ＜ 0.05). Conclusion Inhalation of anaesthetic concentration of isoflurane may affect synapse formation during the development of central nervous system by actirating hippocampal MEF2 signaling pathways in neonatal rats.

Objective To investigate the effects of uric acid (UA) and UA under oxidative stress on cultured human umbillical vein endothelial cells (HUVEC).Methocds HUVECs were incubated with different concentration UA (0,4,8,16 mg/dL),H2O2 (500 mmol/l) and UA+H2O2 (500 mmol/l) for 24,48 and 72 hours.Then we observed the morphology of HUVECs and evaluated the proliferation of HUVECs by MTT assay.NO and ET-1 in supernatant medium was detected by ELISA.Results For the viability of HUVECs,there was no statistically significant difference between 4 mg/dL UA group and control group after incubation for 24,48 and 72 hours (P＞0.05) and between UA groups(8 mg/dL and 12 mg/dL) and control group after incubation for 24,48 and 72 hours (P＞0.05).After incubation with 12 mg/dL of UA for 48 hours or 8 mg/dL of UA for 72 hours,the viability of HUVECs decreased significantly (P ＜0.05) The viability of HUVECs in H2O2 group decreased significantly (P＜0.05).The viability of HUVECs in UA+H2O2 groups after incubation for 24 h was significantly better than H2O2 group.There was no signifiant difference in the cell viability between (8 mg/dL or 12 mg/dL) UA+H2O2 group and H2O2 group.Compared with the control group,the NO levels were decreased and the ET-1 levels were increased in the supernatants of HUVECs in 12 mg/dL UA group for 72 hours (P＜0.05).Compared with H2O2 group,the NO levels were increased and the ET-1 levels were decreased in the supematants of HUVECs in (8 mg/dL or 12 mg/dL) UA +H2O2 groups for 24 hours (P＜0.05),while for (12 mg/dL) UA +H2O2 group for 72 hours,the results were just the contary.Conclusion The effects of UA on HUVECs are related with both concentration and action rime.Acutely increased UA may protect HUVECs form injury,while long action of UA may injure HUVECs,especially under oxidative stress.