TNP-conjugated spleen adherent cells (SAC) from normal BALB/c mice could stimulate lymph-node T lymphocytes (LNT) of 1, 3, 5-trinitrobenzene (TNCB) -primed syngeneic mice to proliferate in vitro. The proliferative response was suppressed when phorbol myristic acetate.(PMA) was present in the culture. SAC pretreated with PMA also suppressed markedly the response. Furthermore, PMA was shown to inhibit interleukin-1 (IL-1) production and/or secretion by macrophages in response to LPS stimulation in vitro. Therefore, the suppressive effect of PMA on antigen presentation seems to be due to its inhibitory effect on IL-1 production and/or secretion.

AIM: To observe the clinical effecacy of Aidi Injection (Radix Ginseng, Radix Astragali, Mylabris, Radix et Caulis Acanthopanacis Senticosi) combined with chemotherapy in the treatment of malignant advanced tumor. METHODS: Patientes (106 cases) with advanced malignant tumor were randomized into two groups: therapeutic group (56 cases) and control group (50 cases). The therapeutic group:the chemotherapy combined with Aidi Injection (60～80mL), once a day, for 10 days. The control group:the chemotherapy alone. Two groups mainly used PTX、DDP、EPI、5 FU、VP16 etc for chemotherapy. RESULTS: The therapeutic group has different degrees of improvement in life quality, short term efficacy, leukooytai drop and T cellular subfamily, etc. There was markedly difference between the therapeutic group and the control group ( P

Objective To study the effect of restraint and watered stress of different durations on the gastric empting in rats. Methods 48 male SD rats (weight ±150 g) were divided randomly into 6 groups with 8 in each. The experimental rats were restrained and watered in 23℃ water box for 1 h/d, while the controls were free. The body weight, general conditions and behavioral indexes of the rats were observed and recorded. The gastric empting rate was measured in rats with semi-solid diet after 3 d,7 d and 28 d during the statistically significant differences among different groups of different stress groups,and between the 3 d test group and 3 d control group. The gastric empting rate was higer in the 7-day test than in 7 d controlled group, lower in the 28 d test group than 28 d control group. Conclusion Different chronic stress can cause changes of gastric empting rate. With the prolonging of stress time, the empting rate is rising and then decending.

Objective To explore the effect of group psychological training on the mental health and self consistency of nurses from operating rooms.Methods 52 nurses of an operating room were randomized into the treatment group(n=25)and the control group(n=27): The latter received humane care and instructions for mental self care and the former received group psychological training for 8 weeks based on the same treatment as in the control group.Symptom checklist 90(SCL-90)and self consistency and congruence scale(SCCS)were used to assess and compare the difference of the two groups before and after training.Results The intra-and inter-group comparisons between pre-and post-intervention showed statistical differences in terms of the total score by SCL,interpersonal sensitivity,depression and hostility,total score by SCCS and the score on the subscale of inconsistency between themselves and their experience(all P<0.05 or P<0.01).Conclusion Group psychological training can effectively improve the level of mental health and self consistency of OR nurses and thus can improve the total psychological status of the OR nurses.

Objective To discuss the cause,treatment and prevention of splenic injury during the urological surgery.Methods The clinical data of 16 cases with splenic injury in operation for renal and adrenal tumors in 496 cases were retrospectively analyzed.Nine cases were left radical nephrectomy,3 cases were left renal hamartoma enucleation,4 cases were left adrenal tumor resection.Damage located at outer edge of the spleen in 8 cases,the splenorenal ligament in 6 cases,and the splenic hilum in 2 cases.In these 16 cases,14 patients spared the spleen (Ⅰ Grade injury 8 cases,Ⅱ grade 6 cases).The injuryed spleen was directly pressed with hemostatic gauze in 3 cases; 5 patients used coagulation,bonding,hemostatic gauze to stop bleeding; 2 cases of grade Ⅱ injury used U-shaped suture and coated with fibrin glue,then compressed with hemostatic gauze to stop bleeding; 2 cases of grade Ⅱ injuries with the greater omentum stitched into the seam,sprayed biological glue,were compressed with gelatin sponge; 2 cases of grade Ⅱ injury underwent splenic artery branch ligation.The other 2 cases (1 Ⅱ grade and 1 Ⅲ grade) underwent splenectomy.Results All of the 16 patients were cured and followed up for 6 months to 5 years.There was no delayed bleeding of spleen and splenic dysfunction.One patient died of tumor recurrence 6 months after operation.Conclusions Splenic injury is a common complication during urological surgery,especially the tumor is large or adhered to spleen in the upper pole of left kidney.Once spenic injury occurs,doctors should choose the right treatment plan according to surgical injury,and try to save the spleen.

Composition of the polysaccharide from Bupleurum scorzonerifolium Willd. was studiedby high resolution capillary gas chromatography after hydrolysis and followed by acetylation and esterifica-tion of the hydrolysate. The results showed that it is composed of arabinose, ribose, D-xylose, D-man-nose, D-glucose and D-galactose, with a molar ratio of 0. 106 : 2. 652 : 4. 070: 0. 519 : 0. 930 : 2. 518.

Objective To evaluate the clinical effect of the free-hand cervical pedicle screw fixation in treatment of the upper cervical fracture and instability.Methods A retrospective review was performed on 15 patients with upper cervical fracture and instability treated with cervical pedicle screw fixation and fusion from September 2006 to January 2009.There were 11 males and 4 females,at average age of 41.2 years(range,18-60 years).Of all,there were five patients with atlas fracture and dislocation(including three simple anterior arch fractures and two Jefferson fractures),three with axis fracture and dislocation,one with dens fractures plus nonunion,two with C2,3 fracture and dislocation and four with atlantoaxial instability without fracture.The main clinical complaints included local neck pain and/or tetraplegia.Halo traction was recommended to restore the cervical sequence preoperatively in all patients.All 15 patients were treated by cervical pedicle screw-rods internal fixation and bone graft fusion.During the operation,the point and angle of the implanted pedicle screws were determined by preoperative X-ray and CT scan and the bony channel drilled with free-hand before implantation of the Summit or Vertex pedicle screws(22-26 mm long)and posterior interlaminar autologous or allogeneic bone fusion.Patients could get out of bed with neck collar at days 1-2 after operation.Results A total of 64 cervical pedicle screws were implanted in all 15 patients,with no vertebral artery injury,spinal cord injury or cerebrospinal fluid leakage.Postoperative X-ray and CT scan confirmed satisfactory internal fixation.The clinical symptoms were improved significantly.Fourteen patients were followed up for 12-36 months,which showed bony fusion,with no looseness or breakage of the screws.Neurologic impairment was improved in all patients,with no complications associated with the cervical pedicle screw.Conclusions Cervical pedicle screw internal fixation can reestablish the upper cervical vertebrae stability and help to recover the spinal cord and nerve function and hence is a reliable method for upper cervical fracture and/or instability.

Objective To investigate the clinical and imaging features in patients with vertebrobasilar dolichoectasia (VBD) through a comparative study in patients with ischemic stroke with or without VBD.Methods The patients with acute cerebral infarction were divided into either a VBD group or a non-VBD group according to magnetic resonance angiography.The VBD group was further divided into an anterior circulation infarction subgroup and a posterior circulation infarction subgroup.The cardiovascular risk factors,the diameter of basiar artery (BA),bifurcation height,and horizontal displacement were compared in all groups.Results A total of 269 patients with acute cerebral infarction were included,28 had VBD,accounting for 10.41％ of the patients with acute cerebral infarction during the same period.The proportion of male patients (78.6％ vs.66.8％ ;x2 =4.392,P =0.036),age (70.38 ± 10.58 years vs.62.86 ± 12.20 years; t =2.870,P =0.009),and the proportion of hypertension (89.3％ vs.47.7％ ; x2 =17.367,P =0.000) in the VBD group were significantly higher than those in the non-VBD group.The multivariate logistic regression analysis showed that the advanced age (odds ratio [OR] 1.248,95％ confidence interval [CI] 1.137-1.371; P=0.000),hyperglycemia (OR 1.599,95％ CI 1.181-2.164; P =0.002),hypertension (OR 1.251,95％ CI 1.020-1.534; P =0.032) and increased triglyceride level (OR 1.876,95％ CT 1.021-3.445; P =0.043) were the independent risk factors for VBD,while female gender (OR 0.133,95％ CI 0.024-0.735; P =0.021) was the independent protective factor for VBD.Of the 28 cerebral infarction patients with VBD,9 had anterior circulation infarction and 19 had posterior circulation infarction.There were significant differences in BA diameter ([5.40 ± 0.49] cm vs.[6.00 ± 0.77] cm; t =2.046,P =0.041),and the proportions of high score in bifurcation height (x2 =6.768,P =0.037) and horizontal displacement (x2 =5.241,P =0.042) between the 2 groups (all P ＜0.05).The multivafiate logistic regression analysis showed that the BA bifurcation height was an independent risk factor for posterior circulation infarction (OR 1.347,95％ CI 1.069-2.457; P =0.038) in patients with VBD.Conclusions VBD accounted for 10.41％ of the patients with acute cerebral infarction during the same period.Advanced age,hyperglycemia,hypertension and increased triglyceride level were the independent risk factors for VBD.Female gender was the independent protective factors for VBD,and the BA bifurcation height was an independent risk factor for VBD occurring posterior circulation infarction.

Objective To investigate the feasibility of ADC values in the evaluation of normal fetal brain development by measuring ADC values changes in specific regions with advancing gestational age.Methods Forty fetuses(gestational age:24 to 41 weeks) with normal brain underwent DWI(b value were 0 and 600 s/mm2).ADC values of the frontal white matter(WM),occipital WM,thalamus,basal ganglia,and cerebellum were measured by post-processing software.The differences among different regions' ADC values were calculated by repeated measurements of ANOVA,and simple linear regression was used to evaluate the relationship between ADC values and gestational age.Results The mean ADC valuesof 40 fetuses were(1 800±214) ×10-6mm2/s in frontal WM,(1 400±100) ×10-6mm2/s in basal ganglia,(1 300±126) ×10-6mm2/s in thalamus,(1 700±133) ×10-6mm2/s in occipital WM and(1 400± 155) × 10-6mm2/s in cerebellum,respectively.There was significant difference in the ADC values among the five regions(F=80.813,P＜0.01).In pair-wise comparison,ADC values of basal ganglia,thalamus and cerebellum had no significant difference; however,others had significant difference between each other.With the increasing gestational age,ADC values of basal ganglia,thalamus,occipital WM and cerebellum decreased,and had significant negative correlations with gestational age(Pearson correlation coefficient were-0.568,-0.716,-0.830 and-0.700,respectively,all P＜0.01).In terms of ADC value,occipital WM declined fastest with gestational age,followed by cerebellum and thalamus,and the slowest was basal ganglia.Frontal ADC values showed no correlation with gestational age(P＞0.05).Conclusions Specific regions of fetal brain have specific ADC values,and ADC values of the region undergo regular change with advancing gestational age.ADC value is a specific quantitative parameter that could help to evaluate normal brain development and early diagnosis of fetal brain lesions.

Objective To evaluate the safety and effectiveness of treating the endovascular stents placement for spontaneous isolated dissection of splanchnic artery ( SIDSA).Methods Sixteen consecutive patients with diagnosis of SIDSA through CTA and DSA were retrospectively analyzed .All patients had acute persistent abdominal pain and treated by endovascular stents placement.The serious complications and symptoms improvement were reviewed after the operation.The symptoms recurrence and repeated color doppler ultrasonography and CTA were also reviewed in the follow up.Results Twelve superior mesenteric artery ( SMA) dissection and four celiac artery ( CA) dissection were diagnosed among sixteen patients.The dissection length was 1.07 to 11.87 cm and the median length was 3.93 cm.The distance from the original dissection to the orifice of superior mesenteric artery or celiac artery was 0.50 to 6.44 cm and the median was 1.98 cm.Eight stent-grafts and 3 bare stents were successfully implanted in 11 patients.One case with celiac dissection was failed to treat because of the severe compression of true lumen and the guide wire cann′t cannulate to the distal true lumen.Four patients with superior mesenteric artery dissection gave up interventional therapy , Among these 4 patients , 2 patients had small tear site and small false lumen , 1 patient had extremely long dissection , and one case had blood supply of target organs from both true and false lumen.No severe complications such as hemorrhage , intestinal necrosis , hepatic failure and splenic necrosis occurred during the eleven successful endovascular interventions.The abdominal pain in 10 cases was disappeared or significantly relieved , 1 case with superior mesenteric vein thrombosis and severe intestinal ischemia before intervention underwent intestinal resection for necrosis.The follow up period was 1 to 74 months in eleven successful cases , and the median follow-up period was 16 months.One patient with SMA dissection after endovascular treatment was died of sudden stroke three months later .Others had satisfactory outcome and the repeated color doppler ultrasonography and CTA were normal .Conclusions Endovascular stents placement is a safe and effective therapy for symptomatic spontaneous isolated dissection of splanchnic artery.