Research Article

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06/14/2011
Astrocytoma; Glioblastoma; Polymorphism; XRCC1

XRCC genes (X-ray cross-complementing group) were discovered mainly for their roles in protecting mammalian cells against damage caused by ionizing radiation. Studies determined that these genes are important in the genetic stability of DNA. Although the loss of some of these genes does not necessarily confer high levels of sensitivity to radiation, they have been found to represent ... more

A.C. Custódio; L.O. Almeida; G.R. Pinto; M.J. Santos; J.R.W. Almeida; C.A. Clara; J.A. Rey; C. Casartelli
11/30/2010
Astrocytoma; Glioblastoma; GSTP1; Polymorphism

Glutathione S-transferases (GSTs) constitute a superfamily of ubiquitous multifunctional enzymes that are involved in the cellular detoxification of a large number of endogenous and exogenous chemical agents that have electrophilic functional groups. People who have deficiencies in this family of genes are at increased risk of developing some types of tumors. We examined GSTP1 Ile105Val ... more

A.C. Custódio; L.O. Almeida; G.R. Pinto; M.J. Santos; J.R.W. Almeida; C.A. Clara; J.A. Rey; C. Casartelli
02/10/2012
Astrocytoma; Glioblastoma; Polymorphism; XRCC3

The gene XRCC3 (X-ray cross complementing group 3) has the task of repairing damage that occurs when there is recombination between homologous chromosomes. Repair of recombination between homologous chromosomes plays an important role in maintaining genome integrity, although it is known that double-strand breaks are the main inducers of chromosomal aberrations. Changes in the XRCC3 ... more

A.C. Custódio; L.O. Almeida; G.R. Pinto; M.J. Santos; J.R.W. Almeida; C.A. Clara; J.A. Rey; C. Casartelli
03/22/2016
ionizing radiation; Occupational exposure; Sperm DNA damage; Sperm parameter

Long-term radiation exposure affects human health. Ionizing radiation has long been known to raise the risk of cancer. In addition to high doses of radiation, low-dose ionizing radiation might increase the risk of cardiovascular disease, lens opacity, and some other non-cancerous diseases. Low- and high-dose exposures to ionizing radiation elicit different signaling events at the ... more

D.D. Zhou; J.L. Hao; K.M. Guo; C.W. Lu; X.D. Liu; D.D. Zhou; J.L. Hao; K.M. Guo; C.W. Lu; X.D. Liu; D.D. Zhou; J.L. Hao; K.M. Guo; C.W. Lu; X.D. Liu
07/03/2015
Diagnosis; Meta-analysis; MicroRNAs; Thyroid cancer

The aim of this meta-analysis was to systematically evaluate the diagnostic accuracy of microRNAs (miRNAs) in distinguishing malignant thyroid lesions from benign ones and to determine the potential of miRNAs as diagnostic biomarkers for thyroid cancer. The random-effect model was used to summarize the pooled estimates of diagnostic accuracy, including sensitivity, specificity, positive ... more

G.J. Zhou; M. Xiao; L.N. Zhao; J.G. Tang; L. Zhang
12/11/2015
Head and neck cancer; Meta-analysis; MicroRNAs; Screening

Head and neck cancer (HNC) is one of the most prevalent cancers; it is often diagnosed at its advanced stage and has a low 5-year survival rate. Evidence suggests that noninvasive biomarker microRNAs (miRNAs) are valuable for early diagnosis of HNC. This meta-analysis assessed the diagnostic value of miRNAs in HNC detection. A systematic literature search for relevant studies up to August ... more

M. Zhang; L.J. Zhao; W.Q. Liang; Z.P. Mao
10/05/2015
Acute lymphoblastic leukemia; MicroRNAs; Microvesicles; Zinc finger protein genes

Microvesicles (MVs) are submicrometric membrane fragments that can “engulf” cytoplasmic contents such as microRNAs (miRNAs) from their cellular origin. The study of miRNAs carried within MVs might provide insights into the roles that miRNAs play in the underlying pathophysiologic processes of acute lymphoblastic leu­kemia (ALL). We identified numerous dysregulated MV miRNAs in patients ... more

L. Lu; X.M. Chen; H.M. Tao; W. Xiong; S.H. Jie; H.Y. Li
03/11/2016
Differentially expressed genes; MicroRNAs; RNA sequencing; Thyroid carcinoma; Transcription factors

In this study, we examined the molecular mechanism of thyroid carcinoma (THCA) using bioinformatics. RNA-sequencing data of THCA (N = 498) and normal thyroid tissue (N = 59) were downloaded from The Cancer Genome Atlas. Next, gene expression levels were calculated using the TCC package and differentially expressed genes (DEGs) were identified using the edgeR package. A co-expression ... more

J.C. Lu; Y.P. Zhang; J.C. Lu; Y.P. Zhang
11/21/2016
Apoptosis; bcl-X Protein; Cell Line, Tumor; Cell proliferation; Cell survival; Female; Gene Expression Regulation, Neoplastic; Humans; MicroRNAs; Uterine cervical neoplasms

Cervical cancer is a life-threatening condition. MicroRNAs (miRNAs) can promote or inhibit cell death and proliferation. The present study investigated the effect of miRNA 421 on the growth and apoptosis of cervical cancer cells. miRNA 421 and control miRNA were synthesized and transfected into c-33a cervical cancer cells. A thiazolyl blue tetrazolium bromide assay, caspase-3 activity, and ... more

X.J. Lai; X.Y. Cheng; L.D. Hu
01/23/2017
Apoptosis; Cell Line, Tumor; Cell proliferation; Female; Gene Expression Regulation, Neoplastic; Humans; MicroRNAs; Proto-Oncogene Proteins c-bcl-2; RNA interference; Uterine cervical neoplasms

Cervical carcinoma is a life-threatening illness posing considerable danger to women's health. microRNAs (miRNAs) have been shown to regulate multiple cellular events, including growth and proliferation, and miR-187 is thought to regulate the growth and apoptosis of certain cell types. Our study focused on the influence of miR-187 on the growth, proliferation, and apoptosis of SiHa cervical ... more

C.Y. He; J. Yang

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