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Xiong F.,University of Sichuan | Xiong F.,West Health Institute | Yang F.,University of Sichuan | Huo T.Z.,West Health Institute | And 6 more authors.
Clinical and Experimental Obstetrics and Gynecology | Year: 2014

Background: As the intrauterine environment can effect children's growth and development, this study aimed to explore the relationship between birth high-risk and physique situation of 9 to 15-year-old children by cross-sectional investigation, and to provide clues for the monitoring, prevention, and treatment of growth deviation in children. Materials and Methods: This study recruited 7,194 students aged 9 to 15 years in primary and junior schools. Their parents were asked to complete the birth situation questionnaire. Measurements included height, weight, and body mass index (BMI). Birth high-risk infant was defined according to the gestational age and birth weight. Growth deviation was classified as underweight, short stature, overweight, and obesity. Results: The prevalence of all kinds of growth deviations in preterm, full-term, and post-term birth groups were similar, the same as the physique situation at school age among both sexes. The incidence of small for gestational age (SGA) was 6.23%, when at school age, part of SGA had catch-up growth. However, the prevalence of underweight and short stature for SGA was highest in three groups. The weight and height at school age in SGA group was less than that in appropriate for gestational age (AGA) and large for gestational age (LGA) groups. The prevalence of overweight and obesity for LGA and macrosomia were highest in three groups. At school age, the weight in macrosomia and LGA groups was higher than that in the other groups. Conclusions: Longitudinal height and weight development and growth of children with birth high-risk are different from normal children. In order to improve healthy situation, more attention should be paid to height and weight development of those children with birth high-risk at school age, even in pre-school age. Prevention may already begin during pregnancy.

Zhang Y.,University of Sichuan | Zhang Y.,Key Laboratory of Obstetric and Gynecologic | Lai Y.,Chengdu University of Technology | Chen H.-Q.,University of Sichuan | And 2 more authors.
Cell Biology International | Year: 2012

Cardiovascular and cerebrovascular diseases remain the leading cause of death in the world. AS (atherosclerosis) is not only an inflammatory disease in which chemokines play the main role but also a disorder that is related to blood SS (shear stress). We have investigated the action of IL-8 (interleukin-8) mRNA expression in human endothelial cells line-EA.Hy926 under SS at different intensities and duration. Expression increases with time in an intensity dependent manner. With regard to the transcriptional mechanism involved, transient transfection of the human wild-type IL-8 promoter (-162/+44)/ luciferase reporter plasmid, or site mutation of one of the binding sites [AP-1 (activator protein 1) or NF-kB (nuclear factor kB)] in the IL-8 promoter region was investigated. Both AP-1 and NF-kB were essential for SS-activated transcription, with the cells responding to NF-kB activation within minutes. After stimulated at low SS (4.20 dyne/cm2) for 30 min, the P65 subunit was translocated from the cytoplasm to nucleus for at least 60 min, while the cytoplasmic level of IkB (inhibitory kB) gradually decreased. The combined activation of NF-kB and AP-1 are the upstream regulators of low SS-induced IL-8 production in EA.Hy926 cells, which subsequently trigger an inflammatory reaction in endothelium.

Li L.,University of Sichuan | Pan X.,University of Sichuan | Pan X.,Henan University of Science and Technology | Li Z.,Luoyang Central Hospital | And 11 more authors.
Human Immunology | Year: 2013

Emerging evidence suggests that down-regulated miRNAs play an important role in the carcinogenesis of colorectal cancer (CRC). Single nucleotide polymorphisms (SNPs) in the promoter region of miRNAs may disturb miRNAs processing, alter their expression, and ultimately affect an individual's susceptibility to CRC. We conducted a case-control study and analyzed twelve SNPs in the promoter region of miR-143/145 of 525 subjects including 242 cases with CRC and 283 controls using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. The mutant genotypes or alleles of rs41291957, rs353292, rs353293, and rs4705341 were significantly associated with an increased risk of CRC compared with the wild genotypes or alleles, while rs4705343, rs17796757, rs3733845, and rs3733846 were significantly associated with a decreased risk of CRC. When stratification analysis was done by different variables, such as tumor size, tumor site, differentiated status, clinical stage, and metastasis status, we found that patients with the mutant allele of rs41291957 had an increased risk to develop a tumor size larger than 5. cm. These findings suggest that SNPs in the promoter region of miR-143/145 may be related to the etiology of CRC. However, further larger studies with different ethnic origins are needed to confirm our results due to limited sample sizes in the study. © 2013 American Society for Histocompatibility and Immunogenetics.

Ren Y.,University of Sichuan | Wang H.,University of Sichuan | Wang H.,Key Laboratory of Obstetric and Gynecologic | Lu D.,University of Sichuan | And 10 more authors.
Diagnostic Pathology | Year: 2014

Background: As an acute-phase protein, serum amyloid A (SAA) is expressed primarily in the liver. However, its expression in extrahepatic tissues, especially in tumor tissues, was also demonstrated recently. In our study, we investigated the expression of SAA in uterine cervical carcinomas, and our results suggested its potential as a serum biomarker.Methods: Quantitative real-time polymerase chain reaction (RT-PCR), immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) were used to evaluate the SAA gene and protein expression levels in the tissues and sera of patients with non-neoplastic lesions (NNLs), cervical intraepithelial neoplasia (CIN) and cervical carcinoma (CC).Results: Compared with NNLs, the SAA gene (SAA1 and SAA4) expression levels were significantly higher in uterine CC (mean copy numbers: 138.7 vs. 5.01, P < 0.000; and 1.8 vs. 0.079, P = 0.001, respectively) by real-time PCR. IHC revealed cytoplasmic SAA protein staining in tissues from adenocarcinoma and squamous cell carcinoma of the cervix. The median serum concentrations (μg/ml) of SAA were 6.02 in patients with NNLs and 10.98 in patients with CIN (P = 0.31). In contrast, the median serum SAA concentration was 23.7 μg/ml in uterine CC patients, which was significantly higher than the SAA concentrations of the NNL group (P = 0.002) and the CIN group (P = 0.024).Conclusions: Our data suggested that SAA might be a uterine CC cell product. High SAA concentrations in the serum of CC patients may have a role in monitoring disease occurrence and could have therapeutic applications. Virtual slides: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1433263219102962. © 2014 Ren et al.; licensee BioMed Central Ltd.

Zhou J.,University of Sichuan | Liu Q.,University of Sichuan | Liu Q.,Key Laboratory of Obstetric and Gynecologic | Mao M.,University of Sichuan | And 3 more authors.
Genetics and Molecular Research | Year: 2014

The ubiquitin-proteasome system (UPS) regulates many cellular processes, including protein stability, cell cycle control, DNA repair, transcription, signal transduction, and protein trafficking. In fact, UPS plays a key role in various stress conditions such as ischemia, glutamate toxicity, Alzheimer's disease, and Parkinson's disease. Huwe1, a homologous to E6-AP carboxy terminus (HECT) domain ubiquitin ligase, is now being regarded as a vital protein involved in neural stem cell differentiation, adult neurogenesis, and the DNA damage response pathway. In response to DNA damage, Huwe1 may have a dual function in arresting DNA replication and in ending checkpoint signaling. The proliferation and differentiation of neural stem cells regulated by Huwe1-mediated Notch signaling could also play an important role in neural protection following neural injury. Considering Huwe1 is required for neural precursor survival and the regulation of the DNA damage response pathway, there is growing evidence and considerable hope that Huwe1 might be a therapeutic target for neural injury. © FUNPEC-RP.

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