Objective To explore the diagnostic value of SPECT rCBF imaging for acute closed brain injury. Methods SPECT rCBF imaging and X-ray CT were perfomed in 60 patients with acute closed brain injury, and the results of two detection methods were compared. Results Among 60 patients, SPECT examination found 54 cases(90%) of brain lesions, while x-ray CT only found 27 cases(45%). The positive diagnostic rate of SPECT was higher than that of CT(? 2=25.68,P

Bone growth factors play an important role in the process of bone metabolism and perform a variety of physio -logical functions such as regulating bone growth , differentiation and remodeling .Meanwhile , these cytokines are associated with orthopedic disorder and therapy .The curative effect of the overturned sartorius iliac flap in repair of acetabular defect in developmental dysplasia of the hip proves to be good , but mechanism between the overturned flap and the surrounding bone tissue is unclear .This review briefly summarizes the functions and applications of several major cytokines in bone for -mation and remodeling , which may provide new ideas and methods for illuminating the mechanism of these cytokines during the repair of the acetabular defect .

Objective To evaluate the efficacy and safety of endoscopic balloon dilatation for patients with achalasia. Methods Patients with achalasia, were treated by single or double esophageal balloon dilatation under endoscopy,f ollowed up survey by gastroduodenal endoscopy and esophageal barium radiography as well as their symptoms were investigated periodically. Results The dysphagia symptoms remitted in all of the 43 patients,and mucosal lacerations,abrasions a nd oozing of blood, were found in this process but without complication of perf oration,haematemesis and melena.The following up ranged from 3 months to over 4. 8 yrs,and average was 2.6 yrs.The rate of remission of dysphagia symptoms 90.7 ％ (39/43) at six months,85.3％ (29/34) at 1 yr,82.6％ (19/23) at 2 yrs and 82.4 ％ (14/17) at 3 yrs,and the rate of recurrence of symptoms was 9.3％ (4/43)、 1 4.7％ (5/34)、 17.4％ (4/23)、 17.6％ (3/17),respectively.In addition,there were 37.2％ (16 cases)of patients with acid－ reflux symptoms,30.2％ (13 cases)heart burn and 14.0％ (6 cases)reflux esophagitis during the followed－ up. Conclusion Endoscopic esophageal balloon dilatation for achalasia is an effective and saf e method not only in the short－ term but also in the long－ term.

Objective To investigate the recovery of affected side kidney function after upper urinary tract obstruction was relieved Methods 78 patients who had been diagnosed with upper urinary tract obstruction were enrolled from January to December of 2015 in our hospital.All patients received the surgery to relieve the obstruction.GFR of the affected side kidney was done after one months of the surgery.The average age was(51.3 ± 12.8)years old.The reason of obstruction was upper urinary tract calculi (72 cases) and upper urinary tract stenosis (6 cases) respectively.All the patients received CT and ECT before and after operation.All the patients was divided into 3 groups by the decreased degree of affected side kidney function,including moderately decreased group [15 rnl/min ≤ GFR ＜ 30 ml/min,n =43,mean value =(23.1 ±5.0) mL/min],severely decreased group [7.5 rnL/min≤ GFR ＜ 15 ml/min,n =23,mean value =(11.2 ± 2.3) ml/min],and extreme severely decreased group [GFR ＜ 7.5 ml/min,n =12,mean value =(4.3 ± 2.9)ml/min].Linear correlation analysis was used to analysis the relationship analysis between the GFR value (pre-operation,post-operation) and the renal cortical thickness.The follow up time of extreme severely decreased group extended to 8-12 months.Results The GFR of moderate decreased group recovered to(30.6 ± 8.5) ml/min,regained averagely (7.56 ± 7.62) ml/min;the severely decreased group recovered to (13.1 ± 4.5) ml/min,regain (1.94 ± 3.38) ml/min.Extreme severely decreased group recovered to (11.1 ± 3.4) ml/min,regained averagely (6.75 ± 4.76) rnl/min,the GFR mean value after operation 8-12 months recovered to (12.7 ± 3.6) ml/min.All groups got significant recovery of kidney function of the affected side.The correlation coefficient between GFR value and the renal cortical thickness was 0.59 (before the surgery) and 0.70 (after the surgery) respectively (P ＜ 0.05).Conclusions Most of affected side kidneys got different degree of recovery.Obstruction influenced the accuracy of ECT at the time of evaluating the actual renal function before operation.The kidneys which had been supposed should be resected in presurgical evaluation could recover to the level of kidney reserve after the surgery.

Objective: To research the effect and mechanism of how chitosan restrain fat-absorbtion, and provide references for developing a kind of nutritional and healthy fastfood. Methods: 1.In vitro digestion: Phosphomolybdic acid colorimetry; 2.In vivo experiment:240 rats were divided into four groups and fed with different diets: basal diet(Group A), high fat diet (Group B), chitosan supplemented diet (Group C), high fat and chitosan supplemented diet (Group D). The fat and chitosan content(%) of diet were A(10,0), B(60,0), C(8,20), D(34.3,14.8) respectively. Determine the blood lipids and fat output in dung, and observe the weight gain and swimming time. Results: 1.In vitro experiment showed chitosan acted on cholic acid at the best proportion 1∶8. 2.In vivo experiment showed chitosan can restrain fat-absorbtion, and increase fat output. Swimming in ice-water showed chitosan improved rats performance. Compared with group B, the blood lipids and weight of group C and D had no obvious change, but the fat-output much increased.

Objective To investigate the expression of humanβ-defensin 2 (HBD-2) in gastric mucosa of Helico-bacter pylori (H. pylori) associated gastric mucosa-associated lymphoid tissue (MALT) lymphoma, and the role of HBD-2 in gastric MALT lymphoma. Methods Forty gastric mucosa specimens from patients with H. pylori associated gastric MALT lymphoma were collected. And 36 gastric mucosa specimens from chronic superficial gastritis without H. pylori infection were included as control group. The expression of HBD-2 was detected by immunohistochemistry staining. Results The ex-pression of HBD-2 was significantly higher in H. pylori associated gastric MALT lymphoma than that of control group. (P＜0.01). The expression of HBD-2 was significantly decreased after the eradication of H. pylori (P＜0.01). The expression of HBD-2 was significantly higher in H. pylori associated gastric MALT lymphoma than that of lymphoma cells (P＜0.01). There was no expression of HBD-2 in lymphoma cells. Conclusion HBD-2 is possibly involved in the pathogenesis of H. pylori associated gastric MALT lymphoma. But whether it has anti-tumor effect is not clear.

Objective To investigate the clinical efficacy,operative essentials and indications of hybrid spinal fusion surgery for cervical spondylotic myelopathy.Methods From August 2008 to December 2011,thirty-eight patients with cervical spondylotic myelopathy underwent hybrid spinal fusion surgery in our hospital.There were 27 males and 11 females,aged from 33 to 70 years (average,51 years).A total of 86 segments were treated (fusion 48 vs.non-fusion 38).Twenty-eight patients underwent a two-level surgery,and ten patients received a three-level surgery.The Japanese Orthopaedic Association (JOA) score and Visual analogue scale (VAS) were used to evaluate pre-and post-operative neurological function and pain,respectively.The pre-and post-operative range of motion of the cervical spine was measured according to Xrays.Moreover,the surgical complications were recorded and analyzed.Results Thirty-seven patients were followed up for 15 to 55 months (average,29.1 months).The improvement of neurological function was obtained in 36 patients.The JOA score was improved from preoperative 10.5±1.57 to 14.3±1.97 at final follow-up,with an improvement rate of 58.46％,and the results were excellent in 16 cases,fair in 20 cases and poor in 1 case.The VAS was improved from preoperative 7.3±1.04 to 3.2±1.41 at final follow-up.The Cobb angle changed from preoperative 25°±3.21°to 20°±2.56°at final follow-up.After operation,the neurological function was not restored in 1 case; hoarseness and bucking occurred in 2 cases; sore throat occurred in 22 cases; anterior displacement of prosthesis (PCM) occurred in 3 cases.Other patients had no complications,such as displacement,loosening and heterotopic ossification.Conclusion In hybrid spinal fusion surgery,the lesions segments are decompressed fully,the severely degenerative segments are fused,and the motion of the non-fusion segments is reserved.As a result,not only the stability of the cervical spine is achieved,but also an obvious improvement of symptoms and a satisfactory short-term efficacy can be obtained.Therefore,this method is an alternative procedure for cervical spondylosis myelopathy.

Objective:To investigate the in vitro influence of IL-24 on the functions of CD8 + T cells from patients with non-small cell lung cancer (NSCLC). Methods:Twenty-eight NSCLC patients and 17 healthy individuals were enrolled in this study. Peripheral blood mononuclear cells (PBMC) and bronchoalveolar lavage fluid (BALF) were collected to isolate CD8 + T cells. Real-time reverse transcription-PCR was used to detect the expression of IL-24 receptors (IL-20R1, IL-20R2 and IL-22R1) at mRNA level in CD8 + T cells. Changes in the expression of perforin and granzyme B were measured by flow cytometry after stimulating purified CD8 + T cells with different concentrations of recombinant human IL-24 (10 ng/ml and 100 ng/ml). In vitro direct and indirect contact co-culture systems were established for CD8 + T cells and NSCLC cell line (NCI-H1882 cells). CD8 + T cells induced target cell death and expression of IFN-γ and TNF-α in response to IL-24 stimulation were analyzed. Student′s t test or LSD- t test was used for intergroup comparison. Results:The expression of IL-22R1 at mRNA level was not detected in CD8 + T cells. No significant difference in IL-20R1 or IL-20R2 expression at mRNA level in CD8 + T cells was observed between healthy individuals and NSCLC patients, or between non-tumor sites and tumor sites ( P>0.05). Perforin and granzyme B expression was significantly reduced in CD8 + T cells from peripheral bloods and tumor sites of NSCLC patients as compared with those from healthy individuals and non-tumor sites (all P<0.05). Low concentration of IL-24 (10 ng/ml) did not affect perforin or granzyme B expression in CD8 + T cells ( P>0.05), but high concentration of IL-24 (100 ng/ml) significantly enhanced the expression of perforin and granzyme B in CD8 + T cells from NSCLC patients ( P<0.05). In the direct contact co-culture system, increased ratio of dead target cells and up-regulated IFN-γ and TNF-α expression were induced after stimulating CD8 + T cells from tumor sites in NSCLC patients with high concentration of IL-24 (100 ng/ml), but low concentration of IL-24 (10ng/ml) had no significant influence on CD8 + T cell-induced target cell death and cytokine production. In the indirect contact co-culture system, neither target cell death nor cytokine production induced by CD8 + T cells was affected by IL-24 stimulation. Conclusions:High concentration of IL-24 promoted the in vitro cytolytic function of CD8 + T cells from NSCLC patients, but might not influence the in vivo functions of CD8 + T cells.

Objective To determine the diagnostic value of SPECT in lower digestive tract hemorrhage (LDTH). Methods Of the 24 LDTH cases,16 were tested by gastric mucosa imaging ,4 by 99m Tc PHA imaging,and the other 4 by 99m Tc RBC imaging.All the patients' diagnosis were confirmed by surgery and pathology. Results The sensitivity and the specificity of the gastric mucosa imaging were 100%(16/16) and 93.7%(15/16),respectively. The sensitivity of the 99m Tc PHA imaging and the 99m Tc RBC imaging was 75.0%(3/4) and 75.0 %(3/4), respectively, but had no specificity. Conclusions SPECT has very high sensitivity and specificity in the diagnosis of Meckel's diverticulum. 99m Tc PHA imaging and 99m Tc RBC imaging may help to determine the position of bleeding in unkown causes of LDTH.

Objective To explore the diagnosis, treatment and prognosis of testicular benign tumors in children.Methods The clinical data of 26 boys ( aged between 17 days to 12 years and average age was 2.5 years) with testicular benign tumors treated in our center between January 2008 and December 2015 were retrospectively analyzed.The tumors were on the left side in 17 cases, on the right side in 9 cases. Twenty patients presented with painless scrotal mass.3 with cryptorchidism, 2 cases with hydrocele, and 1 case with varicocele.These boys underwent ultrasound or CT examination, results the enlarged tests with space-occupying lesions in 20 cases,3 cases were presented as scrotal empty,3 cases were showed as cystic masses.Twenty-four boys had taken tumor marker detection,which including 3 cases of AFP rised, 2 cases of Neuron-specific enolase slightly higher, 1 case of Ferritin increased.26 patients were performed surgical treatment, 23 cases have taken testicular tumor resection, and 3 cases underwent orchiectomy because of abnormal morphology, according to the intraoperative findings and quick frozen pathological examination results.Results Postoperative pathological diagnosis showed of maturity teratoma in 14 cases, not maturity teratoma in 3 cases, gonadoblastoma in 3 cases, interstitial cell tumor in 2 cases, epidermoid cyst in 2 cases, fibrocellular tumor and testicular inflammatory granuloma in 1 case respectively.The 23 cases were followed up for 3-70 months.All respondents children were alive, and no complications were found such as residual tumor atrophy or tumor recurrence and metastasis.Conclusions Early diagnosis and treatment is the key to obtaining a good effect of testicular tumors. Detailed specialist examination, preoperative ultrasound, CT and determination of tumor markers are important ways to diagnose testicular cancer; rapid intraoperative frozen check may manifest nature of the tumors.For pediatric testicular benign tumor, testis-sparing surgery should be considered.