Objective To study the clinical features,pathological characteristics and prognosis of renal cell carcinoma(RCC)in young adults,and to improve the recognition of RCC in young population. Methods The data of 35 young patients with RCC under the age of 35 years from August 1983 to June 2005 were analyzed retrospectively.There were 22 males and 13 females with a mean age of 31 years(age range, 19-35 years).The clinical presentations were as follows:painless hematuria in 12 cases(34%),low back pain in 12(34%),abdominal mass in 2(6%),fever in 3 and Stauffer syndrome in 1.The tumor size was 1.2-13.8 cm in diameter(mean,6.0cm).AJCC staging showed stage I tumor in 8 cases,stageⅡin 4, stageⅢin 18 and stageⅣin 5.Of the 35 cases,28 underwent radical nephrectomy(including simultaneous extraction of the vena cava emboli in 3 cases and extraction with pulmonary lobectomy in 1);5 cases under- went partial nephrectomy;and 2 cases lost the chance of operation(1 of them had biopsy).Results The operations were successful.The postoperative pathologic diagnoses consisted of clear cell carcinoma in 23 ca- ses,mixed cell carcinoma in 5,papillary cell carcinoma in 2,and chromophobe cell carcinoma in 2,low-dif- ferentiated and undifferentiated cell carcinoma each in 1.Of them,26 cases were followed for 12-148 months(mean,56 months).Postoperative 3-and 5-year survival rates were 65% and 50%,respectively. Conclnsions In young population,RCC is difficult to diagnose because of occult symptoms at early stage and lack of tumor specificity,which leads to relatively late clinical staging at diagnosis.RCC is characterized by higher malignancy,easy invasion to surrounding tissues and metastasis,and thus poor prognosis.

OBJECTIVETo explore clinical efficacy of double Endobutto reconstituting coracoclavicular ligament combined with repairing acromioclavicular ligament in stage I in treating acromioclavicular dislocation with Rockwood type III - V .

METHODSFrom January 2010 to September 2013, 56 patients with Rockwood type III - V acromioclavicular dislocation were treated by operation, including 20 males and 36 femlaes, aged from 32 to 52 years old with an average of 38.5 years old. Twenty-five patients were on the left side and 31 cases on the right side. The time from injury to operation was from 3 to 14 days, averaged 7 days. All patients were diagnosed as acromioclavicular dislocation with Rockwood type III - V, and double Endobutto were used to reconstituting coracoclavicular ligament, line metal anchors were applied for repairing acromioclavicular ligament. Postoperative complications were observed, Karlsson and Constant-Murley evaluation standard were used to evaluate clinical effects.

RESULTSAll patients were followed up from 8 to 24 months with average of 11 months. According to Karlsson evaluation standard at 6 months after operation,42 cases were grade A, 13 were grade B and 1 was grade C. Constant-Murley score were improved from (42.80±5.43) before operation to (91.75±4.27) at 6 months after operation. All items at 6 months after operation were better than that of preoperative items. Forty-eight patients got excellent results, 7 were moderate and only 1 with bad result. No shoulder joint adhesion, screw loosening or breakage were occurred during following up.

CONCLUSIONDouble Endobutto reconstituting coracoclavicular ligament combined with repairing acromioclavicular ligament in stage I for the treatment of acromioclavicular dislocation with Rockwood type III - V could obtain early staisfied clinical effects, and benefit for early recovery of shoulder joint function.

Acromioclavicular Joint ; injuries ; surgery ; Adult ; Bone Plates ; Bone Screws ; Female ; Humans ; Ligaments, Articular ; injuries ; surgery ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; Shoulder Dislocation ; surgery ; Treatment Outcome

The diversity in Tibetan kefir grains and dynamics of the microbial community during the fermentation of Tibetan kefir by PCR-DGGE fingerprinting technique were studied.The results showed that bacterial community of Tibetan kefir grains was more complex than that of yeast.The bacteria communities between different Tibetan kefir grains showed 78%～84% similarity, and yeast 80%～92%.Bands B, E and N of DGGE profiles of the microbial community during fermentation of Tibetan kefir were present throughout the fermentation.Analysis of sequence date showed the majority of the DGGE bands of bacteria community corresponded to LAB, and the most intense band (band E) was completely homology to Lactococcus lactis.

OBJECTIVETo investigate surgical methods and effects of unstable scapular fracture.

METHODSFrom October 2008 to August 2011, 14 patients with unstable scapular fracture were treated. There were 12 males and 2 females with an average age of 38.7 years (ranging, 21 to 55 years).The time from injury to hospitalization was 1 hour to 10 days (mean 3 days). Among patients,3 patients had scapular body fracture,4 patients had scapular neck and body fracture,4 patients had scapular neck and acromion fracture,2 patients had glenoid cavity and coracoid fracture, 1 patient with scapular spine and coracoid fracture. All patients were treated by operation, Hardegger classification system was applied to evaluate the function.

RESULTSAll patients were followed up for 2 to 36 months (mean 12.4 months). The healing time ranged from 6 to 8 weeks. No infection and internal fixation failure occurred. The effect result of Hardegger scoring system was excellent in 9 cases, good in 3 cases, fair in 2 cases.

CONCLUSIONSurgical treatment for unstable scapular fracture can reconstruct stability of shoulder joint, promote early rehabilitation of joint function, and maximally restore shoulder function.

Adult ; Female ; Fracture Fixation, Internal ; methods ; Fractures, Bone ; diagnostic imaging ; physiopathology ; surgery ; Humans ; Male ; Middle Aged ; Radiography ; Recovery of Function ; Scapula ; injuries ; physiopathology ; surgery ; Young Adult

Objective To establish a rapid and effective supercritical fluid extraction (SFE) and rapid resolution liquid chromatography method coupled with diode-array detector (RRLC-DAD) to quantify the chromones in a species. Methods The effects of four parameters including ethanol concentration (50%–90%), pressure (25–45 MPa), temperature (40–60 oC), and time (30–90 min) on the chromones yields, namely prim-O-glucosylcimifugin, cimifugin, 5-O-methylvisammioside, and sec-O-gluco-sylhamaudol, were investigated using SFE system with orthogonal array design (OAD). Furthermore, the extracts were analyzed using rapid resolution liquid chromatography coupled with diode-array detector (RRLC-DAD) system to confirm the results. Results Under the optimized conditions, i. e., 35 MPa of pressure, 60 °C of temperature, 70% ethanol, and 60 min of time, the yields of prim-O-glucosylcimifugin, cimifugin, 5-O-methylvisammioside, sec-O-glucosylhamaudol, and total chromones were 3.514, 0.132, 6.242, 0.342, and 10.231 mg/g, respectively. In comparison with ultrasonic assisted extraction (UAE), SFE was able to yield a 20.7% increase in the total chromones from Saposhnikoviae Radix. Conclusion SFE is an alternative and promising method to extract chromones from this species, and the established RRLC-DAD method could serve as a rapid and effective method for the identification of chromones from Saposhnikoviae Radix.

AIM: To evaluate the growth-inhibitory effects of NS-398, a selective cyclooxygenase-2 inhibitor, in human colon cancer HT-29 cells and its possible mechanisms. METHODS: MTT assay was applied to detect the cell proliferation. Flow cytometry was performed to detect apoptosis rate and cell cycle. RT-PCR was used to detect the expression of bcl-2 mRNA and bax mRNA. Alteration of cytoskeleton component F-actin was observed by confocal laser scanning microscope. RESULTS: NS-398 could inhibit growth of HT-29 cells in dose-and time-dependent manners. Flow cytometry revealed that NS-398 could induce apoptosis and cause G0/G1 arrest of HT-29 cells in a dose-dependent manner. After 72 h incubation with NS-398 at different concentrations, the expression level of bcl-2 mRNA was lowered and the ratio of bcl-2 to bax was decreased in HT-29 cells. F-actin was mainly distributed around nuclei forming annular structure in HT-29 cells. After exposure to NS-398, the annular structure around nuclei disappeared and fluorescence intensity of F-actin decreased obviously. CONCLUSION: NS-398 can inhibit the growth effectively and induce apoptosis in HT-29 cells in vitro, which is associated with the down-regulation of bcl-2 to bax ratio and the disruption of cytoskeleton.

Objective To explore the etiology and pathogenesis of Hirschsprung disease(HD) and the role of nitric oxide in pathophysiology of HD. Methods The whole amount preparations of dilative and transitional segments were stained by NADPH\|diaphorase histochemistry mothod,and colonic walls were digested by dispase. Then the NOS positive nervous structure were observed by light and scanning electron microscope. Results In dilative segment, under light microscope, ganglion and neuron were bigger and more darkly stained. Intraganglionic neurons distributed mostly in peripheral area of ganglion and basal part of ganglionic fiber bundles. Under scanning electron microscope, the neurons were denser, more nerve fibers from them and connected with each other in all dimensions. And more transverse connected fibers between neurons which were arranged along muscle fibers. Myenteric plexus even connected with the submucosal plexus by nerve fibers which passed through circular muscle layer. In transitional segment, under light microscope, intraganglionic neurons cytoplasm were lightly stained and also variedly. The ganglion and neurons of the segment were smaller, and the fibers from them were thinner and paler than those of the dilative segment. Under scanning electron microscope, neurons' density was lower, the fiber connection between neurons and muscle fibers/neurons was lesser. In the transitional segment, neurons and nerve fibers were distributed linearly along the longitudinal muscle fibers. Conclusion Our results indicated that an intimate relationship existed between the development of Hirschsprung disease and abnormal distribution and metabolism of NOS positive neuron in colonic wall. [

In order to provide effective tool for further studying of the function of HCMV genome, developing of molecular vaccine and diagnostic reagents. Extraction of HCMV mRNA from HF cell infected by HCMV AD169 strain for 96h was reverse transcripted into cDNA, then was cloned into EcoR I-digested lambda gt11. HCMV AD169 strain cDNA expressing library has been constructed after packaging. The volume and the recombination rate of the prime cDNA expressing libraries was 3.6?10 6 and 96%, 168 positive clones of HCMV were screened by immune blotting with anti-HCMV mouse convalescent sera, 34 positive clones were obtained by dot nucleic acid hybridization with DIG-labled HCMV pp65 gene probe. 2 positive clones were amplified by HCMV pp65 all length primer. The PCR product has been tested by southern-blotting.The PCR product was sequenced and was taken as homology comparison by DNASIS software,and the homology is 98%.To lay the foundation of furher cloning,expressing the pp65 gene,further studying of the function of the pp65 prodct.

Objective To investigate children′s myelodysplastic hematopoietic cells reaction to interleukin (IL)-15.Methods CD 34 + cells in bone marrow from 18 myelodysplast syndrome(MDS) patients were purified by an immunomagnetic beads sorting system. Apoptosis of hematopoietic precursors was assayed by propidium iodine staining and flow cytometric analysis.Results On 8th cultured day,when IL-15 concentration was between 0-100 ng/ml,it could suppress apoptosis of hematopoietic cells in MDS patients in a dose-and- time dependent manner. IL-15 in study group significanthy lower than that of control group.Conclusion IL-15 may partly suppress apoptosis of hematopoietic cells in MDS patients.

Accidents ; statistics & numerical data ; Adult ; China ; epidemiology ; Female ; Humans ; Inpatients ; statistics & numerical data ; Male ; Wounds and Injuries ; epidemiology