Time filter

Source Type

Nanjing, China

Ma S.-G.,Xuzhou Medical College | Qiu Y.-L.,Women and Childrens Hospital of Suqian | Zhu H.,Suqian Peoples Hospital | Liu H.,Xuzhou Medical College | And 2 more authors.
Scandinavian Journal of Clinical and Laboratory Investigation | Year: 2015

Background: Mutations in the dual oxidase maturation factor 2 (DUOXA2) and thyroid peroxidase (TPO) genes have been reported to cause goitrous congenital hypothyroidism (GCH). The aim of this study was to determine the genetic basis of GCH in affected children. Methods: Thirty children with GCH were enrolled for molecular analysis of the DUOXA2 and TPO genes. All subjects underwent clinical examination and laboratory testing. Genomic DNA was extracted from peripheral blood leukocytes, and Sanger sequencing was used to screen for DUOXA2 and TPO gene mutations in the exon fragments amplified from the extracted DNA. Family members of those patients with mutations were also enrolled and evaluated. Results: Analysis of the TPO gene revealed six genetic variants, including two novel heterozygous mutations, c.1970T> C (p.I657T) and c.2665G> T (p.G889X), and four mutations that have been reported previously (c.670-672del, c.2268dup, c.2266T> C and c.2647C> T). Three patients harbored the same mutation c.2268dup. The germline mutations from four unrelated families were consistent with an autosomal recessive inheritance pattern. Conversely, no mutations in the DUOXA2 gene were detected. Conclusion: Two novel inactivating mutations (c.1970T> C and c.2665G> T) in the TPO gene were identified. The c.2268dup mutation occurred frequently. No mutations in the DUOXA2 gene were detected in this study. © 2015 © 2015 Informa Healthcare.

Zhu J.-Z.,Zhejiang University | Zhu H.-T.,Zhejiang University | Dai Y.-N.,Zhejiang University | Li C.-X.,Zhejiang University | And 7 more authors.
Endocrine | Year: 2016

Recent animal studies support close associations of Periostin with hepatosteatosis and steatohepatitis. This study is to evaluate the role of serum periostin in non-alcoholic fatty liver disease (NAFLD). A hospital-based age-/sex-matched case–control study was conducted. Binary logistic regression and receiver operating characteristic (ROC) curve were performed. Serum adipokines were measured by Adipokine Magnetic Bead Panel kits. The serum concentration of Periostin in NAFLD (1914.16 [1323.59–2654.88] ng/ml, P < 0.001) was higher than it in control (1244.94 [837.87—2028.55] ng/ml). The frequency of NAFLD grew (29.8, 52.6, and 67.2 %, P < 0.001), as Periostin concentration increased among its tertiles. Compared with the 1st tertile, the 2nd and the 3rd tertiles of Periostin indicated significant associations with higher odds of NAFLD [adjusted odds ratio = 2.602 (95 % confidence interval (CI) 1.030–6.575), P = 0.043 and 2.819 (95 % CI 1.629–4.878), P < 0.001]. ROC curve of Periostin was developed to predict the presence of NAFLD (area under ROC = 0.693 [95 % CI 0.614–0.771], P < 0.001). Lastly, Periostin correlated with several adipokines, including Resistin (r = 0.269, P = 0.018), Adiponectin (r = −0.352, P = 0.002), Interleukin (IL)-6 (r = 0.359, P = 0.001), IL-8 (r = 0.364, P = 0.001), Lipocalin-2 (r = 0.623, P < 0.001), Hepatocyte growth factor (r = 0.522, P < 0.001), and Nerve growth factor (r = 0.239, P = 0.036). It suggests Periostin as a potential biomarker in the management of NAFLD. © 2015, Springer Science+Business Media New York.

Zhu H.,Suqian Peoples Hospital | Peng Y.-G.,Xuzhou Medical College | Ma S.-G.,Xuzhou Medical College | Liu H.,Xuzhou Medical College
Cancer Biomarkers | Year: 2015

BACKGROUND: The thyroperoxidase (TPO) genetic variants in thyroid carcinoma is scarcely reported. OBJECTIVE: We report on a pedigree of thyroid papillary carcinoma and hypoechoic thyroid nodules with the TPO gene mutations. METHODS: The compound heterozygotic mutations of the TPO gene (c.2268-2269 insT and c.2090 G>A) in two patients with congenital goiters hypothyroidism were demonstrated. Fifteen family members of the proband and 105 control individuals were enrolled. The participants underwent clinical examination and molecular screening for TPO mutation. The hypoechoic thyroid nodules underwent fine needle aspiration biopsy. RESULTS: The mutation c.2268-2269 insT was detected in the four family members with normal thyroid hormone levels. The other two members harbored the c.2090 G>A mutation. The heterozygotes had degeneratively hypoechoic thyroid nodules. The control individuals showed no mutation. The maternal grandfather developed a multifocal papillary thyroid carcinoma with lymph gland and nerve invasion in the left lobe of the thyroid gland. The maternal grandfather harbored the TPO c.2268-2269 insT mutation but without BRAFV600E mutation. Malignant cells were not observed in other members by fine needle aspiration biopsy. CONCLUSION: TPO genetic variants may be associated with thyroid carcinoma and hypoechoic thyroid nodules in a few cases. Long-term follow-up in the pedigree with congenital goiter is reasonable. © 2015 - IOS Press and the authors. All rights reserved.

Yin H.,Central University of Costa Rica | Zhou Y.,Central University of Costa Rica | Wen C.,Central University of Costa Rica | Zhou C.,Central University of Costa Rica | And 5 more authors.
Oncology Reports | Year: 2014

Temozolomide (TMZ), a DNA alkylating agent, represents the most important chemotherapeutic option for the treatment of glioblastoma in the clinic. Despite its frequent use, the therapeutic efficacy of TMZ remains very limited due to its frequent resistance in glioblastoma. Previous evidence suggested that curcumin (CUM), an ingredient of the Indian spice turmeric, is able to sensitize glioblastoma to TMZ treatment. However, the underlying molecular mechanism remains elusive. In the present study, we performed in vitro and in vivo experiments to evaluate the interaction of CUM and TMZ on the inhibition of glioblastoma and to investigate its potential mechanisms of action using U87MG cell lines and xenograft mouse models. We demonstrated that CUM enhanced the therapeutic response to TMZ in U87MG glioblastoma by enhancing apoptosis. We then proceeded to investigate the potential apoptotic signaling pathways that are involved. We observed a synergistic effect of the combination of CUM and TMZ in generating reactive oxygen species (ROS) production, suggesting that ROS may contribute to the impact of CUM on sensitizing TMZ treatment. We also showed that CUM and TMZ treatment alone significantly suppressed phosphorylated AKT and mTOR, whereas their combination achieved a more pronounced inhibitory effect. These data indicated that blockage of AKT/mTOR signaling appeared to contribute to the elevated apoptosis caused by the combination treatment with CUM and TMZ. In conclusion, this study provided molecular insights into the effects of CUM on the therapeutic response of glioblastoma to TMZ and opened new avenues for optimizing the therapeutic effects of TMZ-based therapies.

Qiu Y.-L.,Women and Childrens Hospital of Suqian | Zhu H.,Suqian Peoples Hospital | Ma S.-G.,Xuzhou Medical College | Liu H.,Xuzhou Medical College | And 2 more authors.
Journal of Pediatric Endocrinology and Metabolism | Year: 2015

Objective: To investigate well-controlled congenital hypothyroidism on the markers associated with early kidney injury and oxidative DNA damage. Methods: Twenty-three children with euthyroid congenital hypothyroidism aged 3-6 years and 19 age- and gender-matched controls were enrolled. Serum levels of albumin, C-reactive protein, cysteine C, globulin, pre-albumin, and total protein were detected. Urine levels of albumin, fibrin degradation products, IgG, β2-microglobulin, and 8-hydroxydeoxyguanosine (8-OHdG) were also measured. Clinical and biochemical characteristics were evaluated between the two groups. Results: Serum levels of C-reactive protein were higher, but pre-albumin was lower in patients with congenital hyperthyroidism compared with the controls (all p<0.001). Urinary levels of IgG were higher in patients with congenital hyperthyroidism than in the controls (p=0.011). However, urinary levels of albumin excretion and 8-OHdG were similar to those in the controls. Serum pre-albumin levels were negatively correlated with urinary 8-OHdG levels (r=-0.479, p=0.016) in patients with congenital hypothyroidism. Conclusion: It is concluded that inflammatory and oxidative markers were slightly altered in well-controlled congenital hypothyroidism. The levels of urinary 8-OHdG and albumin excretion were not significantly different. © 2015 by De Gruyter.

Discover hidden collaborations