The article analyses the actualities and causes of present-day college students'vocational values.Then it elaborates how to guide college students to have correct vocational values.Teaching college students' vocational values is a comprehensive work over a long period of time.

With the rapid development of proteomics technology,SELDI protein chip technology has become a powerful tool for proteomics with the capacity of gathering sample separation,purification,testing and data analysis together.As its convenience,high-throughput and high-sensitivity,as well as simple and fast analysis,SELDI technology plays an important role in the diagnosis and prevention of tumor.Here we re- view the basic principles,features and recent advances of this technology in digestive tumor.

Objective: To evaluate the repair method and its curative effects on defects and joint instability in elderly patients with recurrent soft tissue sarcoma around the knee after wide excision. Methods:Our study included 6 elderly patients with limb sal-vage and effective preoperative chemotherapy. These patients underwent extended resections, including internal or lateral articular cap-sule and collateral ligament excisions. Owing to polyleptic soft-tissue sarcoma around the knee, formed soft-tissue defects, and joint in-stability, collateral ligament and/or partial articular capsule was reconstructed using #5 Ethibond sutures. Simultaneously, soft-tissue de-fects around the knee were repaired by composite-wide pedicled fasciocutaneous flaps or medial head of gastrocnemius muscle flaps of the leg. The maximum flexion angles of the knee (MFKs) were observed and statistically tested before and during surgery, with a fol-low-up period of 6 months. Results: The immediate stability of the joints and complete coverage of the soft tissue defects were achieved during the surgery. The MFKs during preoperative treatment, intraoperative treatment, and six-month follow-up were 115.0° ± 7.8°, 101.7° ± 9.3°, and 104.8° ± 10.2°, respectively, with significant differences between the preoperative and intraoperative MFKs (t=2.68, P<0.05). By contrast, no difference existed between the intraoperative and six-month follow-up MFKs (t=0.55, P>0.05). Conclu-sion:This repair method can be applied to elderly patients with polyleptic soft tissue sarcoma around the knee by using simple, fast, and reliable surgical techniques for the reconstruction, stability, and repair of soft tissue defects in the knee joint.

ObjectiveTo investigate the value of “streaks” sign in diagnosis of central neurocytoma.MethodsFifty-two cases of central neurocytoma confirmed by pathology from 2008 to 2011 were collected.In 52 cases,both MRI and CT scan were performed on 12 patients,MRI only on 36 patients and CT only on 4 patients.MRI and CT features were analyzed retrospectively.ResultsIn MRI,the “streaks” sign was found in 39 cases,accounting for 81.25％(39/48).In CT,the“streaks” sign was found in 11 patients,accounting for 68.75％(11/16).The “streaks” sign in CTwas also found in MRI.ConclusionsThere is a certain specificity of“streaks” sign in central neurocytoma imaging.In combination with other imaging findings,it can be helpful for an accurate preoperative diagnosis of the disease.

OBJECTIVETo study the relationship between Chinese medical syndrome types and metabolomics of non-small cell lung cancer (NSCLC) patients.

METHODSTotally 120 NSCLC patients were assigned to asthenia syndrome group and sthenia syndrome group, 60 in each group. Meanwhile, 60 cases of benign pulmonary nodules in physical examinations were recruited as the control group. Tumor tissues or benign pulmonary nodules tissues were obtained by thoracoscope. Changes of their metabolites were observed using gas chromatography-mass spectrometry (GC-MS). Their differences were studied using principal component analysis (PCA) and partial least-squares discriminant analysis (PLS-DA). ROC curve analysis was performed in different metabolic compounds of sthenia and asthenia syndromes groups. The area under the curve (AUC) was calculated to evaluate the sensitivity of diagnosing syndrome types.

RESULTSCompared with the control group, difference existed in 16 compounds. Of them , contents of citric acid, pyruvic acid, alanine, choline phosphate, glycerol phosphate choline, linoleic acid, oleic acid, lactic acid, inositol were more in the two tumors group than in the control group. Difference existed in 10 compounds between the sthenia syndrome group and the asthenia syndrome group. Of them, citric acid, pyruvic acid, alanine, choline phosphate, glycerol phosphate choline, lactic acid, and inositol were more in the asthenia syndrome group than in the sthenia syndrome group. Contents of valine, glucose, and glutamine were more in the sthenia syndrome group than in the asthenia syndrome group. ROC curve analyses of different compounds indicated that AUC of lactic acid and glucose was more than 0.8 (P < 0.01); AUC of inositol, choline phosphate, and glycerol phosphate choline was more than 0.7 (P < 0.01); AUC of valine, citric acid, glutamine, alanine, and pyruvic acid was more than 0.6 (P < 0.05).

CONCLUSIONSThere existed certain correlation between CM syndrome types and metabolomics of lung cancer. Lactic acid, glucose, inositol, choline phosphate, glycerol phosphate choline, valine, citric acid, glutamine, alanine, pyruvic acid were sensitive diagnostic compounds, and the first four kinds were most sensitive compounds.

Asian Continental Ancestry Group ; Carcinoma, Non-Small-Cell Lung ; metabolism ; Gas Chromatography-Mass Spectrometry ; Humans ; Lactic Acid ; Least-Squares Analysis ; Metabolomics ; methods ; Principal Component Analysis ; Pyruvic Acid

Objective To investigate the possibility of detection of the human papillomavirus (HPV)L1 capsid protein to predict the coarse of mild or moderate cervical intraepithelial neoplasia(CIN).Methods Immunocytochemical analysis using antibody against HPV L1 capsid protein was carried out on 274 samples obtained from women performed Tri Path Pap tests.positive for high-risk HPV DNA detected by hybrid capture Ⅱ (HC-Ⅱ)or cytologic diagnosed atypical squamous cells of undetermined significance (ASCUS)or more severe.For cytological diagnosed,there were ASCUS 105 cases,low-grade squamous intraepithelial lesions (LSIL) 119 cases,atypical squamous cells cannot exclude high-grade squamous intraepithelial lesion (ASC-H)9 cases,high-grade squamous intraepithelial lesions(HSIL)36 cases,and squamous cell carcinoma(SCC)5 cases.But for the pathologic diagnosed,there were chronic cervicitis 96 cases.CIN Ⅰ 55 cases,CIN Ⅱ 55 cases,CIN Ⅲ 32 cases,and SCC 6 cases.Results Of the 274 cases,HPV L1 capsid protein was positive in 69.8%(67/96) of cervicitis,83.5%(71/85)of CIN Ⅰ,41.8% (23/55)of CIN Ⅱ,3.1%(1/32)of CIN Ⅲ and 0(0/6)of SCC.Cytologic diagnosis revealed a higher expression rate in LSIL(75.6%.90/119) than that in ASCUS(63.8%,67/105)or in HSIL + SCC (9.8%,4/41;all P<0.01).Of 71 cases with ASCUS and ISIL without treated,none of HPV L1 positive cases(0/55)progressed in cytology,while 19%(3/16)of HPV L1 negative cases progressed to ASC-H,HSIL(P<0.01).Conclusion The expression rates of HPV L1 protein in liquid-based cell specimen is decreased as the cytopathology diagnosis severe degree.which may imply the histopathology diagnosis of cervix,predict the progression of cervical lesion,and help to treat the cases with ASCUS and LSIL.

Objective To explore the diagnosis and treatment of hypopara thyroidism-deafness-renal dysplasia(HDR) syndrome in children.Methods According to the symptoms,signs,laboratory examination and the previous published papers of other authors,the disease of the child was diagnosed and treated,and some related literatures were reviewed.Results The 12-years-old boy presented with tetany and deafness and Chvostek's and Trousseau's signs were positive.The initial laboratory studies showed that the serum concentration of calcium was lower,parathormone was in the low limit of normal range and alkalin phosphatase was normal.An audiography revealed the pattern of sensorineural deafness in all frequencies.Abdominal CT revealed that his right kidney was not observed and creatinine clearance rate was low.After treated with calcium carbonate and vitamin D,the symptoms and the signs were improved.Conclusion HDR syndrome is a rare disorder and less recognized in children,and therefore more attention should be paid to avoid missing diagnosis.

OBJECTIVE:To establish a method for the content determination of L-epicatechin in Actinidiae arguta. METHODS:HPLC was performed on the column of Kromasil C18 with mobile phase of acetonitrile-0.2%Acetic acid solution(15:85,V/V)at a flow rate of 1.0 ml/min,detection wavelength was 210 nm,column temperature was 25 ℃,and the volume injection was 10 μl. RESULTS:The linear range of L-epicatechin was 10.47-167.52 μg/ml(r=0.999 9);RSDs of precision,stability and reproducibility tests were lower than 2%;average recovery was 98.07%-101.71%(RSD=1.39%,n=6). CONCLUSIONS:The method is simple, accurate and reliable,and suitable for the content determination of L-epicatechin in A. arguta.

Objective To analyze and compare the short-term efficacy and daverse reaction of postoperative adjuvant radio -chemotherapy versus simple chemotherapy in advanced gastric cancer .Methods A total of 64 patients with locally advanced gastric cancer were randomly but equally divided into 2 groups ,experimental group and control group .The experimental group patients ini-tially receive 4-cycles chemotherapy with Capecitabine Tablets 1 000 mg /m2 ,bid ,d1 - 14 plus Oxaliplatin 130 mg/m2 ,d1 ,and then receive Capecitabine Tablets 825 mg /m2 ,bid ,d1 - 35 plus 3DCRT 45 Gy/25 Fx /5 w concurrent radio-chemotherapy .Control group patients receive 6-cycles Capecitabine plus oxaliplatin combined chemotherapy .Then we observed the disease progression time ,toxic reaction ,1 year survival rate and 2 year survival rate simultaneously in two groups .Results The follow-up rate were 100% .The comparative results are listed as follows (experimental group and control group) :the rates of Ⅰ /Ⅱ grades of nausea and vomiting were 87 .50% and 62 .50% respectively (P< 0 .05) ,other adverse reactions were not statistically significant ;1-year overall survival rate and recurrence-free survival rate were 90 .63% ,87 .50% respectively (P > 0 .05) and 84 .38% ,62 .50% respectively (P <0 .05) ;2-year overall survival rate and recurrence-free survival rate were respectively 84 .38% ,59 .38% (P< 0 .05) and 75 .00% , 50 .00% respectively (P< 0 .05) .Conclusion The advantages of 3DCRT combined with Capecitabine Tablets chemoradiotherapy can raise the successful rate of local control in patients with advanced gastric cancer after operation and 4 cycles chemotherapy .The toxic reactions are tolerable for patients .

Objective To investigate the CT features of pulmonary sarcoidosis.Methods Ninety patients with histologically proved pulmonary sarcoidosis were retrospectively studied by using CT scans and clinical recording.Results The main CT findings of pulmonary sarcoidosis were nodules which were seen in 69 cases(76.7%),and the nodules mostly distributed around the bronchovascular bundle(n=37, 41.1%).Other abnormalities included consolidation(n=31,34.4%),ground-grass(n=39,43.3 %), thickening of bronchovascular bundle(n=30,33.3%),interlobular septal lines(n=58,64.4%), fibrosis(n=17,18.9%)including bronchial distortion(n=8,8.9%),linear shadow(n=5,5.6%), and honeycombing shadow(n=4,4.4%),air-trapping(n=3,5.3%),bronchial straitness(n=8, 8.9%),pleural thickening(n=42,46.7%),and hilar and mediastinal adenopathy(n=76,84.4%). Two or more abnormal findings co-existed in 83 cases.The pulmonary lesions co-existed with hilar and mediastinal adenopathy in 76 cases.The nodules(n=25),consolidation(n=9),ground-grass(n=11), thickening of bronehovascular bundle(n=10)were improved after therapy.Ten cases of the interlobular septal(10/22),0 of bronchial distortion(0/4),1 case of diffuse linear(1/3),and 0 case of honeycombing(0/2)were improved.Conclusion CT manifestations of pulmonary sarcoidosis are varied, but has some specific radiographic features.A correct diagnosis can be made.combined with hilar and mediastinal adenopathy.