To detect the effect of PDZ1, domain of postsynaptic density 95 (PSD-95), on apoptosis of hippocampal neurons induced by oxygen-glucose deprivation (OGD), Sprague-Dawley rat hippocampal neurons were infected with PDZ1-viruses after 21 days of plating. Twenty-four hours after infection, cells were treated with OGD for 1.5 h, then were incubated with DAPI and apoptosis-like cells were characterized, or were collected for co-immunoprecipitation and Western blot analyses. The results showed that: (1) PDZ1 overexpression was observed in hippocampal neurons; (2) Apoptosis induced by OGD was obviously decreased in neurons overexpressing PDZ1 (P<0.05); (3) Overexpression of PDZ1 prevented the binding of GluR6 to PSD-95; (4) Overexpression of PDZ1 inhibited MLK3 and JNK1/2 activation induced by OGD. These results indicate that overexpression of PDZ1 may prevent hippocampal neurons from apoptosis induced by OGD.
Animals ; Apoptosis ; Cells, Cultured ; Culture Media ; chemistry ; Disks Large Homolog 4 Protein ; Glucose ; chemistry ; Hippocampus ; cytology ; Intracellular Signaling Peptides and Proteins ; metabolism ; Membrane Proteins ; metabolism ; Neurons ; cytology ; pathology ; Oxygen ; chemistry ; PDZ Domains ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo explore the effect of the drug-resistant attenuated Bacillus proteus on the protein expression of CD80 and CD86 in peripheral blood dendritic cells (DCs) of hepatitis B patients.

METHODPeripheral blood monocytes were isolated from HBV-infected patients and the DCs were separated and induced to differentiate in vitro. The expression of CD80 and CD86 proteins on cultured DCs were examined using flow cytometry.

RESULTSThe expression rate of CD80 and CD86 of chronic hepatitis B patients increased significantly (P=0.000), while the positive expression rate of CD80 and CD86 showed no obvious variation in healthy individuals (P=0.185 and P=0.118, respectively).

CONCLUSIONSBacillus proteus can significantly increase CD80- and CD86-positive cell percentage in peripheral blood DCs of HBV-infected patients, but has no such an effect in healthy individuals.

Adolescent ; Adult ; B7-1 Antigen ; metabolism ; B7-2 Antigen ; metabolism ; Bacillus ; drug effects ; immunology ; Case-Control Studies ; Child ; Dendritic Cells ; immunology ; metabolism ; Drug Resistance, Bacterial ; Female ; Gene Expression Regulation ; immunology ; Hepatitis B ; immunology ; metabolism ; Humans ; Male ; Middle Aged ; Vaccines, Attenuated ; immunology ; Young Adult

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma, Renal Cell ; genetics ; metabolism ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Kidney Neoplasms ; genetics ; metabolism ; Male ; Matrix Metalloproteinase 2 ; genetics ; metabolism ; Middle Aged ; Transforming Growth Factor beta1 ; genetics ; metabolism ; Tumor Cells, Cultured ; Young Adult

OBJECTIVEAsthma is considered as a typical psychosomatic disease. This study aimed to investigate the temperament of asthmatic children and risk factors for asthma.

METHODSTemperamental type and dimensionality were investigated by Carry Temperament Scale in 106 children with asthma. Logistic regression analysis was used to study the risk factors for the development of asthma. One hundred and six age and sex-matched normal children served as controls.

RESULTSThere were significant differences in the adaptability, mood value and attention persistence of temperament between asthmatic patients and normal controls. Higher proportion of inter-high difficult temperamental type (17.0% vs 5.7%) and lower proportion of easy temperamental type (16.0% vs 29.2%) were found in children with asthma when compared with controls (P < 0.01). Logistic regression analysis showed that the frequency of cold between 3 and 7 years old, allergic history, idiosyncratic physique, parental history of asthma, house decoration and mood value and attention persistence of temperament were risk factors for the development of asthma.

CONCLUSIONSThere were differences in the temperamental type and dimensionality between asthmatic children and normal controls. Children with inter-high difficult temperament and suffered from the above risk factors showed a higher risk for developing asthma.

Adaptation, Psychological ; Affect ; Asthma ; etiology ; psychology ; Attention ; Child ; Child, Preschool ; Humans ; Logistic Models ; Risk Factors ; Temperament

Objective To explore the role and mechanism of forkhead box proteinO3a activates Fas ligand on renal tubular epithelial cell ( RTC ) apoptosis induced by renal ischemia /reperfusion ( I/R ) . Methods The model by clamping renal pedicles for 45 minutes follow-ing reperfusion was established.The protein expression of forkhead box proteinO3a and Fas ligand were examined by western blotting.Apoptosis of RTC was assessed by TdT -mediated dUTP nick -end Labeling (TUNEL) method and transmission electron microscopic (TEM).Renal function was assessed by biochemical automatic analyzer .Results The protein expression level of forkhead box proteinO 3a and Fas ligand was increased significantly following renal I /R at 1 h.RTC nucleus was shrinking, crushing followed renal I /R, and a significant increase in the number of TUNEL -positive cells following renal I /R was displayed com-pared with the sham group.The level of blood urea nitrogen(BUN) and serum creatinine ( Scr) was increased significantly compared with the sham group (P <0.05,P <0.01).Conclusion FoxO3a could be acti-vated during renal I /R, and then up -regulated FasL protein expression , facilitated renal tubular epithelial cell apoptosis , in turn, aggravated renal I /R injury in rats.

OBJECTIVETo describe the prevalence of metabolic syndrome (MS) in Jiangsu province, using IDF 2005 and ATP III 2005 definition.

METHODSMultistage cluster sampling method was used and the participants were interviewed by trained health workers under a structured questionnaire. The number of research subjects was 5888. Fasting plasma glucose (FPG), blood lipids, body mass index, blood pressure (BP) of all sample population (5888 subjects) were measured.

RESULTSThe prevalence of MS was 17.48% by IDF 2005 definition and 21.95% by ATP lII 2005 definition. Women had higher prevalence than men (P < 0.01). The prevalence of MS increased with age. Abrupt increase of the prevalence started at age of 50 in women. The prevalence varied by education, marital status, occupation and income. People from the urban and the south had a higher prevalence than from the rural and from the northern part of the country. The most common combination of MS individual components were 1) central obesity, dislipidemia and high BP; 2) central obesity, dislipidemia, high BP and high FPG.

CONCLUSIONThe prevalence of MS was high in Jiangsu province. Clustering of MS components was common. It is necessary to discuss the cut-off points of central obesity for the waist circumference diagnostic criteria of MS in Chinese population. The importance of prevention of MS should be strengthened both by health professionals and the government.

China ; Female ; Humans ; Male ; Metabolic Syndrome ; epidemiology ; Middle Aged ; Obesity, Abdominal ; epidemiology ; Prevalence ; Waist Circumference

OBJECTIVETo investigate the expression of CD19 on childhood acute leukemia (AL) and its significance, and to provide evidence for the diagnosis and differential diagnosis as well as monoclonal antibody-targeting treatment of leukemia.

METHODSThere were 210 cases of childhood AL, of which 130 cases were male and 80 were female with a mean age of 9 years old. Using a panel of 27 fluorochrome directly labeled monoclonal antibodies, 210 samples from the patients were analyzed with CD45/SSC double parameters and multi-color flow cytometry to determine the expression of CD19.

RESULTSIn the 93 cases of B lineage acute lymphoblastic leukemia (ALL), the positive rate (98.9%, 92/93) of CD19 was significantly higher than that of the other B cell related antigens, such as CD10 (88.2%, 82/93, P = 0.003), CD20 (24.7%, 23/93, P = 0.001) and CD22 (60.2%, 56/93, P = 0.001). CD19 was expressed on all 8 cases of B/myeloid (My) hybrid acute leukemia (HAL) and 1 case of B/T HAL, but was not expressed on all 24 cases of T lineage leukemia and 5 cases of T/My HAL. In the 79 cases of acute myeloid leukemia (AML), only 5 (6.3%) cases expressed CD19. The positive rate (6.3%) of CD19 on AML was significantly lower than that on B lineage ALL (98.9%, P = 0.001). The percentage of CD19 positive cells in B/My HAL (41.6% - 88.7% with a mean of 73.8%) was significant higher than that in CD19(+)-AML (21.4% - 50.4% with a mean of 24.2%; Run Sum test, P = 0.0084). Of the 210 cases, 102 were B lineage related AL including B lineage ALL, B/My HAL and B/T HAL. In B lineage related AL, the sensitivity and the specificity of CD19 was 99.0% (101/102) and 95.4% (13/108) while the positive predictive and the negative predictive values to B lineage were 95.3% (101/106) and 99.0% (103/104), respectively. Using CD19(+) as a single reagent to diagnose B lineage, the false positive rate was 4.6% (5/108) and the false negative rate was 1.0% (1/102) with a general diagnosis index (GDI) of 94.4% [GDI = 1-(false positive rate + false negative rate)].

CONCLUSIONCD19 is continuously and stably expressed on all stages of B lineage differentiation. It is a reliable cell membrane marker for diagnosing B lineage ALL and an ideal target for antibody-targeting treatment of leukemia as well; the expression degree of CD19 can be used to distinguish B/My HAL from CD19(+)-AML; CD19 didn't express on normal myeloid cells but did on some AML cells. Therefore it can be used to detect the minimal residual disease.

Adolescent ; Antigens, CD19 ; analysis ; Child ; Child, Preschool ; Female ; Flow Cytometry ; Humans ; Infant ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; classification ; immunology

We described a female patient with insulinoma who experienced recurrent episodes of automatism, confusion and convulsion. Furthermore, her electroencephalography (EEG) findings resembled the pattern in complex partial seizures with secondary generalization. The interictal EEG showed spikes and sharp waves, as well as focal slowing over the left temporal lobe, and the ictal EEG revealed generalized spikes and sharp waves associated with diffused slowing. She was initially misdiagnosed as pharmacoresistant epilepsy. After the insulinoma was found and surgically removed, her EEG turned normal and she was seizure-free during the 4-year follow-up. This report highlights the need for careful reassessment of all seizures refractory to medication, even for the patients associated with epileptiform discharges on EEG.
Anticonvulsants ; pharmacology ; Diagnosis, Differential ; Drug Resistance ; Electroencephalography ; Epilepsies, Partial ; diagnosis ; drug therapy ; Female ; Humans ; Insulinoma ; diagnosis ; diagnostic imaging ; Middle Aged ; Pancreatic Neoplasms ; diagnosis ; diagnostic imaging ; Tomography, X-Ray Computed

OBJECTIVETo define the immune phenotype of colon cancer cells.

METHODSUsing a panel of 40 anti-human monoclonal antibodies (MoAbs), the cells of colon cancer HR8348 were analyzed with three-color flow cytometry after direct immunofluorescent staining.

RESULTSHR8348 cell line did not express CD2, CD3, CD4, CD5, CD7, CD8, TCR, CD10, CD11b, CD14, CD16, CD19, CD22, CD25, CD28, SmIg, CD33, CD35, CD36, CD41a, CD45, CD45RA, CD45RO, CD56, CD61, CD64, CD66b, CD69, CD71, CD117, CD122 and P-glycoprotein but expressed CD13, CD15, CD20, CD38, CD95 and HLA-DR.

CONCLUSIONThe results demonstrate that colon cancer cell line HR8348 shares some antigenic determinants with leucocyte lineage.

ATP-Binding Cassette, Sub-Family B, Member 1 ; analysis ; Antigens, CD ; analysis ; Cell Line, Tumor ; Colonic Neoplasms ; chemistry ; Humans

OBJECTIVETo prepare fluorescein isothiocyanate (FITC) directly conjugated to monoclonal antibody (McAb) anti-human CD14, ZCH-7-2F9 (2F9-FITC).

METHODSAfter generation and purification, the purity and the murine immunoglobulin subtype of the antibody were evaluated with SDS-PAGE and multicolor flow cytometry (FCM). 2F9 McAb was directly labeled with FITC through modified Marsshall's method and the positive rate of the 2F9-FITC on different types of leukemic cells were compared with the standard CD14-FITC by FCM.

RESULTA large quantity of purified 2F9 McAb was prepared. The subtype of 2F9 was murine IgG1kappa. 2F9-FITC was successfully manufactured with A295/A280 ratio of 0.44. The positive cell percentages of 2F9-FITC and CD14-FITC on the monocytes were 84.50% and 90.08%, respectively, while those on lymphocytes were only 0.52% and 1.01%. There was no significant difference between the CD14 expressions with 2F9-FITC and CD14-FITC on each type of leukemia (n=23, t=0.922, P=0.367).

CONCLUSION2F9-FITC has been successfully prepared and it can be applied in diagnosis and differentiation of monoblastic leukemias.

Animals ; Antibodies, Monoclonal ; biosynthesis ; immunology ; Cells, Cultured ; Flow Cytometry ; Fluorescein-5-isothiocyanate ; analysis ; chemical synthesis ; Fluorescent Antibody Technique ; Humans ; Leukemia, Lymphoid ; pathology ; Leukemia, Myeloid, Acute ; pathology ; Lipopolysaccharide Receptors ; immunology ; Mice ; Mice, Inbred BALB C ; Monocytes ; cytology