Objective To test the reliability and validity of the short version of depression-anxiety-stress scale (DASS-21) for students in the disaster region.Methods DASS-21 and the Chinese version of UCLA PTSD Reaction Index for DSM-IV,Revision I were used to evaluate psychological health among 876 students from grades 5 to 9 after Ya' an earthquake.Results (1) Each of the items had a good distinction degree,with CR value ranging from 9.268 to 22.438 (P＜ 0.01),and the correlation coefficients ranged from 0.306 to 0.742.(2)The Cronbach' s alpha coefficients ranged from 0.781 to 0.911.(3) The correlation coefficients between total score and each dimension ranged from 0.714 to 0.914,and the correlation coefficient between PTSD and total DASS score,depression anxiety and stress score was 0.626-0.774.(4)Through the item analysis and explore factor analysis,the revised scale contained 21 items and 3 subscales which could explain 47.813％ of the total variance(KMO =0.937,x2 =3126.85,df=210,P＜0.01),and the results of confirmatory factor analysis supported the three-factor model (x2/df=4.180,P＜0.01,PCFI =0.728,CFI =0.904,IFI =0.905,TLI =0.881,and RMSEA =0.060),and the load of each item was between 0.339 to 0.715.Conclusion The short version of DASS-21 is reliable and valid,and can be used as a tool for post-disaster stress assessment on local students.

Objective To investigate the derivation and distribution of nitric oxide synthase (NOS) and its relation with the microvessels in the spinal cord. Methods The microscopic features and ultrastructure of NOS in the spinal cord tissue of rats were observed by immunohistochemistry and immunoelectronmicroscopy. Results NOS immunoreactive interneurons were identified mainly in the intermediolateral cell column, around the central canal and in the dorsal and ventral horn, and many of the NOS-containing neural processes and neurons were closely associated with the spinal cord microvessels. Conclusion The regional distribution of NOS may be indicative of the involvement of nitric oxide (NO) in different function related to movement, sensory processing and visceral regulation, and the ultrastructural features benefit the NO diffusion into the microvessels to regulate the blood flow in the spinal cord.

Objective To investigate the derivation and distribution of nitric oxide synthase (NOS) and its relation with the microvessels in the spinal cord. Methods The microscopic features and ultrastructure of NOS in the spinal cord tissue of rats were observed by immunohistochemistry and immunoelectronmicroscopy. Results NOS immunoreactive interneurons were identified mainly in the intermediolateral cell column, around the central canal and in the dorsal and ventral horn, and many of the NOS-containing neural processes and neurons were closely associated with the spinal cord microvessels. Conclusion The regional distribution of NOS may be indicative of the involvement of nitric oxide (NO) in different function related to movement, sensory processing and visceral regulation, and the ultrastructural features benefit the NO diffusion into the microvessels to regulate the blood flow in the spinal cord.

OBJECTIVE: To develop a noninvasive method for prediction of 1p/19q codeletion in diffuse lower-grade glioma (DLGG) based on multimodal magnetic resonance imaging (MRI) radiomics. METHODS: We collected MRI data from 104 patients with pathologically confirmed DLGG between October, 2015 and September, 2022. A total of 535 radiomics features were extracted from T₂WI, T₁WI, FLAIR, CE-T₁WI and DWI, including 70 morphological features, 90 first order features, and 375 texture features. We constructed logistic regression (LR), logistic regression least absolute shrinkage and selection operator (LRlasso), support vector machine (SVM) and Linear Discriminant Analysis (LDA) radiomics models and compared their predictive performance after 10-fold cross validation. The MRI images were reviewed by two radiologists independently for predicting the 1p/19q status. Receiver operating characteristic curves were used to evaluate classification performance of the radiomics models and the radiologists. RESULTS: The 4 radiomics models (LR, LRlasso, SVM and LDA) achieved similar area under the curve (AUC) in the validation dataset (0.833, 0.819, 0.824 and 0.819, respectively; P>0.1), and their predictive performance was all superior to that of resident physicians of radiology (AUC=0.645, P=0.011, 0.022, 0.016, 0.030, respectively) and similar to that of attending physicians of radiology (AUC=0.838, P>0.05). CONCLUSION Multiparametric MRI radiomics models show good performance for noninvasive prediction of 1p/19q codeletion status in patients with in diffuse lower-grade glioma.
Humans ; Magnetic Resonance Imaging ; Chromosome Aberrations ; Area Under Curve ; Glioma/genetics* ; ROC Curve

HLA-Cw belongs to classic HLA-I gene, HLA-Cw molecules have high polymorphism like HLA-A and B molecules. They distribute extensively on the surfaces of karyote, not only presenting endogenetic antigen to CD8+ T cells to induce specific killing effect, but also participating in immunologic reaction as the ligands of killer cell immunoglobulin-like receptor (KIR). Thus it has been valued for their relations to diseases and the functions in transplantation immunity, anti virus and anti-tumor immunity.
Autoimmune Diseases ; immunology ; Graft vs Host Disease ; etiology ; HLA-C Antigens ; genetics ; physiology ; Humans ; Neoplasms ; immunology ; Receptors, Immunologic ; metabolism ; Receptors, KIR ; Virus Diseases ; immunology

OBJECTIVETo investigate the expression of vascular endothelial growth factor (VEGF) in eutopic and ectopic endometrium of in nude mice models of endometriosis and understand the role of VEGF in the development of endometriosis.

METHODSNude mouse models of endometriosis were established by subcutaneous implantation and abdominal injection of human endometrium xenograft from patients with endometriosis. The morphology of the foci was observed microscopically, and VEGF expression was measured with immunohistochemistry.

RESULTSModels of endometriosis were successfully established in 8 of the 10 mice receiving subcutaneous xenograft implantation and in 7 of the 10 mice with abdominal graft injection. Increased VEGF expression was observed in the ectopic endometrium in these models.

CONCLUSIONVEGF expression is increased in the ectopic endometrium of the nude mouse models, and this animal model may facilitate future studies of angiogenesis and antiangiogenesis therapy.

Animals ; Disease Models, Animal ; Endometriosis ; metabolism ; Endometrium ; transplantation ; Female ; Humans ; Immunohistochemistry ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Middle Aged ; Transplantation, Heterologous ; Vascular Endothelial Growth Factor A ; biosynthesis

OBJECTIVETo construct a recombinant adenovirus carrying human endostatin gene with AdEasy system.

METHODSEndostatin gene fragment was amplified from Pshuttle-Endostatin plasmid with PCR and subcloned into the pAdTrack-CMV shuttle vector. The resultant plasimid was cotransduced into E.coli BJ 5183 cells with pAdEasy-1 plasmid for homologous recombination. The linearized recombinant plasmid was subsequently transfected into AAV 293 cells, and the recombinant adenovirus was detected by GFP, PCR and restriction analysis.

RESULTS AND CONCLUSIONThe positive clones of the recombinants were verified by restriction analysis and the titer of the virus reached 2.06 x 10(10)pfu/ml, suggesting successful construction of recombinant adenovirus pAd-Endo.

Adenoviridae ; genetics ; metabolism ; Cell Line ; Cloning, Molecular ; Endostatins ; genetics ; metabolism ; Escherichia coli ; genetics ; metabolism ; Gene Expression ; Genetic Engineering ; Genetic Vectors ; genetics ; metabolism ; Humans

OBJECTIVETo explore the relationship between the genetic background of donor KIR/recipient HLA and the outcomes in HLA-identical sibling HSCT.

METHODSHLA genotype was determined by polymerase chain reaction-sequence-specific oligonucleotide probes (PCR-SSOP) and/or PCR-sequence-specific primer (PCR-SSP). Donor KIR genotype was determined by PCR-SSP. A retrospective study was carried out to analyze the outcomes of 59 patients with various hematologic malignancies received non T-cell-depleted transplant from HLA-identical sibling donors.

RESULTSIncidence of grade II-IV acute graft-versus-host disease (aGVHD) was significantly lower in patients of KIR/HLA matched group than in KIR/HLA mismatched group (32% vs 78%, P = 0.026). The incidence of grade II-IV aGVHD (24% vs 61%, P = 0.018) and fungus infection (14% vs 44%, P = 0.028) were significantly lower in Bw4 matched group than in Bw4 mismatched group. In myeloid diseases, Bw4 matched patients had much lower incidence of fungus infection (12% vs 80%, P = 0.002) compared with Bw4 mismatched patients, and C2 matched patients had higher overall survival (OS) compared with C2 mismatched patients (P = 0.01).

CONCLUSIONSDonor KIR/recipient HLA genetic background is correlated with the outcomes of HLA-identical sibling HSCT in incidences of grade II-IV aGVHD, fungus infection and OS. KIR/HLA matched patients may have lower incidence of aGVHD. Bw4 matched patients may have lower incidences of aGVHD and fungus infection. C2 matched patients may have longer OS.

Female ; Genotype ; HLA Antigens ; genetics ; Hematopoietic Stem Cell Transplantation ; Humans ; Male ; Prognosis ; Receptors, KIR ; genetics ; Siblings ; Tissue Donors ; Transplantation, Homologous

OBJECTIVETo investigate the effects of advanced oxidation protein products (AOPP) on epithelial-to-mesenchymal transition (EMT) in cultured human proximal tubular epithelial cells (HK-2) and explore the mechanism.

METHODSHK-2 cells treated with 50, 100, 200, and 400 µg/ml AOPP or 50 µg/m bovine serum albumin (BSA) for 24 h, or with 200 µg/ml AOPP for 0.5, 1, 3, 6, 12, and 24 h were examined for the protein expression of α-SMA and E-cadherin. In cells pretreated with diphenyleneiodonium (DPI) or cytoplasmic superoxide dismutase (C-SOD), the effects of 50 µg/ml BSA and 200 µg/ml AOPP were assessed on the expressions of α-SMA and E-cadherin, malondialdehyde (MDA) level, superoxide dismutase (SOD) activity, catalase (CAT) activity, and glutathione peroxidase (GSH-px) activity.

RESULTSAOPP treatment up-regulated α-SMA expression and down-regulated E-cadherin expression in a dose- and time-dependent fashion. AOPP exposure of the cells resulted in increased MDA level and lowered activities of SOD, CAT and GSH-PX. DPI and C-SOD partially attenuated the effects of AOPP on α-SMA, E-cadherin, MDA, SOD, CAT and GSH-px.

CONCLUSIONAOPP can induce EMT in cultured HK-2 cells via oxidative stress, and this effect can be attenuated by inhibiting the activation of NADPH oxidase and using antioxidants to delay the progression of renal interstitial fibrosis.

Actins ; metabolism ; Advanced Oxidation Protein Products ; Antioxidants ; metabolism ; Cadherins ; metabolism ; Catalase ; metabolism ; Cell Line ; Cells, Cultured ; Down-Regulation ; Epithelial Cells ; cytology ; Epithelial-Mesenchymal Transition ; Glutathione Peroxidase ; metabolism ; Humans ; Malondialdehyde ; metabolism ; NADPH Oxidases ; metabolism ; Oxidative Stress ; Superoxide Dismutase ; metabolism ; Up-Regulation

OBJECTIVETo investigate the association between single nucleotide polymorphisms (SNPs) of the transmembrane protein 39A (TMEM39A) at the loci 1880G/A, 2442T/G, and 2456A/T and systemic lupus erythematosus (SLE) in Chinese Han patients.

METHODSTMEM39A gene polymorphisms at 3 loci (1880G/A, 2442T/G, 2456 A/T) were analyzed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 110 Chinese Han patients with SLE and 80 normal control subjects, and the allele and genotype frequencies were compared by Chi-square test between the two groups.

RESULTSBoth the genotype frequencies (AA, GA and GG) and allele frequencies (A and G) at 1880G/A differed significantly between SLE cases and the normal controls (P=0.002 and P=0.044, respectively). The two groups also showed significant differences in the genotype frequencies (GG, TG and TT) (P=0.001) and allele frequencies (G and T) (P=0.041) at 2442T/G. No significant differences were found in the genotype frequencies (TT, AT and AA) or allele frequencies (T and A) at 2456A/T between the two groups (P>0.05). The allele and genotype frequencies of the 3 SNPs showed no significant differences between lupus nephritis (LN) patients and non-LN patients.

CONCLUSIONThe TMEM39A polymorphisms at 1880G/A and 2442T/G, but not at 2456 A/T gene, may be associated with the susceptibility to SLE in Chinese Han population. The genotype or allele frequencies of the 3 SNPs have no effect on the incidence of lupus nephritis.

Adult ; Alleles ; Asian Continental Ancestry Group ; genetics ; Case-Control Studies ; Female ; Gene Frequency ; Genotype ; Humans ; Lupus Erythematosus, Systemic ; genetics ; Male ; Membrane Proteins ; genetics ; Middle Aged ; Polymorphism, Single Nucleotide ; Young Adult