AIM: To explore the relationship between interleukin-1receptor antagonist (IL-1ra) and airway hyperresponsiveness (AHR) of asthma. METHODS: The airway responsiveness to inhaled histamine as PC 20 was evaluated among the normal guinea pigs, and sensitized with ovalbumine (OA) and challenged 14 days later (athma group), and injected IL-lra 1 mg?kg -1 intravenously 30 minutes before challenged (asthma plus IL-lra group). The numbers of different cells was counted and classified in bronchoalveolar lavage fluid (BALF). RESULTS: The PC 20 of the asthma plus IL-1ra group was higher than that of asthma group (P

BACKGROUND:Deep vein thrombosis is a common complication following bone surgeries,so its prevention and treatment become critical.However,there are few studies on the incidence of deep vein thrombosis after spine surgery in the elderly.OBJECTIVE:To explore the diagnosis of deep vein thrombosis after spine surgery in the elderly and its incidence after intervention with low-molecular-weight heparin.METHODS:All patients undergoing spine surgery were randomly divided into experimental and control groups.Patients in the experimental group were subjected to the subcutaneous injection of 0.4 mL of low-molecular-weight heparin (4 100 IU) at 12 hours postoperatively,once daily for 7-14 days from the next day.Those received no intervention served as controls.The thromboplastin time,thrombin time,activated partial thromboplastin time,and level of plasma fibrinogen were detected before and after treatment.Color Doppler ultrasound results of the lower extremity vessel before and after treatment and postoperative drainage volume were recorded.RESULTS AND CONCLUSION:(1) In the experimental group,the lower level of plasma fibrinogen and slightly prolonged thromboplastin time,thrombin time and activated partial thromboplastin time were observed,but all were within the normal range.(2) The incidence of deep vein thrombosis in the experimental group (0％) was significantly lower than that in the control group (5％,P ＜ 0.05).(3) To conclude,low-molecular-weight heparin therapy significantly reduced the incidence of deep vein thrombosis after spine surgery.

Objective To prospectively assess the predictive power of centralization phenomenon in the curative effect of automated PLD.Methods The survey population was consisted of 109 patients with inclusion heraiation demonstrated by CT/MRI,74 men and 35 women with average age of 43.1 years(17～75 years). All were complained of low back pain,with varying degrees of lower extremity pain and altered sensation, lasting for more than 2 months;including one symptomatic disc in 99 patients and two symptomatic discs in 10 patients.Patients were undergone dynamic mechanical spinal test and reported whether the test would aggravate their pain.The assessment included forward flexion,extension,rotation of the trunk to the right and left, rotation to the left with fight extension,rotation to the fight with left extension,and whether straight leg raising in the supine position would aggravate back pain or leg pain.Symptom resposes were categorized into three groups:centralization group(CG),partial-centralization group(PCG)and noncentralization group(NCG). Centralization of pain is the progressive retreat of the most distal extent of the referred or radicular pain toward or to the lumbar midline.Noncentralization of pain is the peripheralization of pain in one or more directions, and no change in the distal-most pain location or intensity.All patients received a single therapy with PLD. Results A follow-up of 109 patients for 3 to 6 months,including 46 cases with 24 as exellent and 22 as good reaching 100% of excellent good rate in CG by MacNab standards;43 cases with 5 as exellent,29 as good,9 as fair and poor,with total effective rate of 79.1% in PCG.Twenty cases of NCG symptoms showed no improvement and therefore surgery was considered.Conclusions Centralization phenomenon occurrence during initial mechanical evaluation is a very accurate predictor for successful PLD outcome.Nonoccurrence of centralization would accurately predict poor PLD outcome and thus helpful as early predictor of the need for surgical treatment.

ObjectiveTo study the effect of low-intensity millimeter wave(MMW)irradiation on the immune adhesion function of erythrocytes in mice with tumor.Methods60 healthy male mice were randomized into two groups:irradiation group(n=30) and control group(n=30).All mice were injected into abdominal cavity with A's abdominal juice cancer-cell(1×106/ml,0.2ml).MMW(36GHz,0.73-1.46mw/cm2)was used to irradiate the back of mice in irradiation group,once a day for 8 days.Control group received false irradiation using the same method.At 0d,3d,6d after irradiation, the erythrocytes were extracted from vein blood in the mice,and the RBC-C3b receptor rosettes rate(RCR),tumour-RBC rosette rate(TRR),RBC-SOD and RBC-LPO were determined.ResultsAt 3d after radiation,the RBC-C3b and TRR of irradiation group were higher than that of control group (P<0.01) and RBC-LPO was lower (P<0.05),while there was no significant difference on activity of RBC-SOD(P>0.05). there were no significant difference on all index between two groups at 0d and 6d(P>0.05).ConclusionsLow-intensity millimeter wave irradiation can improve the immune adhesion function of erythrocytes in mice with tumor.

Astract:Objective To investigate the ultrastructural changes and HSP70 expression in liver of mice after microwave irradiation with lethal dose and to explore the application of these indexes as the basis of medical identification in microwave irradiation induced death. Methods The mice were divided into the control group and the irradiation group. Mice of the irradiation group were induced death by whole body exposure to 129 W/cm2 microwave irradiation for 30 minutes. The ultrastructure of liver was observed by transmission electron micro-scope;changes of the HSP70 mRNA and protein expression in liver were detected by reverse transcription polymerase chain reaction ( RT-PCR) and Western blotting respectively. Results Liver cytoplasm was observed dissolved with points and sheets and there were mitochondri-al crest and membrane solution in the irradiation group. And the HSP70 mRNA and protein expression level increases significantly compared with the control group with statistically significant difference (P<0. 01). Conclusion Death induced by microwave irradiation could lead to liver cytoplasm dissolution, mitochondria damage, mRNA and protein expression of HSP70 up-regulation, which may be used as important diagnostic indicators of microwave irradiation induced death.

Objective To evaluate the diagnostic value of brain SPECT imaging with a novel Aβ plaque probe,131 I-2-(4'-dimethylaminophenyl) -6-iodoimidazo[ 1,2-α ] pyridine ( 131 I-IMPY) in early AD.Methods Thirteen patients with AD (3 males,10 females,age ranged 52 - 79 y),11 with mild cognitive impairment (MCI,4 males,7 females,age ranged 48 - 67 y) and 14 normal controls (6 males,8 females,age ranged 42 - 67 y) were enrolled in this study.131I-IMPY SPECT imaging was acquired in 2 -3 h after the agent injection.ROIs were drawn on cerebral lobes and cerebellum.The ratios of mean radioactivity of cerebral lobes over cerebellum (Rcl/cb) were calculated.The t-test was used for data analysis.Results In patients with MCI,Rcl/cb ratios were increased in parietal gyrus,temporal gyrus and frontal gyrus (right:1.15±0.18,1.18±0.12,1.14±0.14; left:1.16±0.11,1.19±0.18,1.15±0.09)compared with those in normal control group ( right:1.02 ± 0.12,1.05 ± 0.14,1.01 ± 0.12 ; left:1.03 ±0.13,1.05 ±0.13,1.01 ±0.14; t:2.1642 to 2.8757,all P ＜0.05).Rcl/cb ratios of basel ganglia and occipital gyms in MCI group (right:0.92 ±0.18,1.12 ±0.15; left:0.94 ±0.15,1.13 ±0.17) showed no statistical difference compared with those in normal control group (right:0.82 ±0.15,1.06 ±0.18;left:0.85 ±0.16,1.08 ±0.15; t:0.7805 to 1.4344,all P＞0.05).In patients with AD,Rcl/cb ratios were increased in parietal,temporal,basal ganglia and occipital lobes (right:1.16 ±0.19,1.24 ±0.17,1.16 ±0.13,1.14±0.11,1.23±0.10; left:1.17±0.21,1.25±0.15,1.18±0.08,1.17±0.16,1.25±0.11)compared with those in normal control group( t:2.1001 to 6.2789,all P ＜0.05).Rcl/cb ratios of parietal,temporal and frontal lobes in AD group showed no statistical difference compared with those in MCI group (t:0.1316 to 0.9806,all P ＞ 0.05 ),while Rcl/cb ratios of basal ganglia and occipital lobes in AD group were increased compared with those in MCI group ( t:2.0850 to 3.6772,all P ＜ 0.05 ).Conclusion 131 I-IMPY as a β- amyloid plaque probe for brain SPECT imaging may be potentially helpful for early diagnosis of AD.

Disinfection ; Escherichia coli ; isolation & purification ; Hospitals ; Medical Waste ; Sewage ; Waste Products ; Water Microbiology

OBJECTIVEEplets mismatch based on HLAMatchmaker software evaluates the clinical application of kidney transplantation.

METHODSIn 239 cases of renal transplant,merits of methods of the traditional HLA six antigen matcheing criteria, cross reaction groups standard and Eplets mismatch based on HLAMatchmaker standard were compared respectively.

RESULTSThe number of mismatchs with three methods in 239 cases, were grouped according to low-high mismatchs. The results revealed that HLAMatchmaker algorithm could significantly increase the number of low mismatchs group 54 (22.6%), compared with the HIA group 19(7.9%) and CREGs group 32 (13.4%). The comparison was discovered statistical significance among the three groups (P<0.001), so the comparison between each group was.

CONCLUSIONHLAMachmaker of donor-recipients matching, is a more efficient, time-saving and high sensitivity matching solution to allograft renal transplantation.

Adolescent ; Adult ; Aged ; Female ; Histocompatibility Testing ; methods ; Humans ; Kidney Transplantation ; Male ; Middle Aged ; Software ; Transplantation, Homologous ; Young Adult

Adult ; Basilar Artery ; abnormalities ; Carotid Artery, Internal ; abnormalities ; Carotid-Cavernous Sinus Fistula ; surgery ; Embolization, Therapeutic ; Humans ; Male

Objective To assess the health status of rodent laboratory animals by pathological diagnosis, our lab has being take apart in investigating the quality of laboratory animals in Beijing area for years and offer some advices for standardized breeding to ensure accurate results of scientific research.This paper focuses on the analysis of laboratory rodent samples that collected in October 2014.Methods We collected the heart, liver, spleen, lung, kidney, large intestine and small intestine, and put these organs into 10%Calcium formaldehyde solution for fixation, and then prepared into two different sections for optical microscopy observation including all paraffin specimens stained with H&E and the frozen sections stained with Oil Red-O and PAS.Results The vast majority of laboratory rodents were up to standard, but there still a problem in individual units.The main problem is liver and lung disease.The rate of Hepatocyte swellingis 6%(mouse), 2.5% (rat), 8.2% (guinea pig), moreover part of them were lipidosis, according to Oil Red-O stain.the mainly problem of lung is congestion ,edema and Interstitial pneumonia ,the detectable rate of pulmonarydiseases is 15.5%(guinea pig).Conclusions The vast majority of laboratory rodents were pathologically diagnosed as healthy animals.The liver disease may be caused by improper feeding.And disease of lung may led by haze, unqualified bedding and low temperature.