Track topics on Twitter Track topics that are important to you
Abstract MSH6 (mutS homolog 6), one of the five key mismatch repair (MMR) genes, was found to play an important role in conferring resistance to alkylating agents - temozolomide (TMZ) in malignant glioma. This study aims to investigate whether genetic variations in MSH6 gene are associated with the survival outcomes in patients with malignant glioma. Each exon of the MSH6 gene was sequenced and single nucleotide polymorphism (SNP) analysis was performed using 74 tumor tissues from glioblastoma multiforme (GBM) patients. Among these patients, 54 patients received radiotherapy plus temozolomide (TMZ) treatment; 20 patients had radiotherapy only. The promoter methylation of O6-methylguanine methyltransferase (MGMT) was measured by MSP (methylation specific PCR). Literature mining and related data collection were done with NCBI and PubMed databases. Of the 74 GBM patients, 50% (n = 37) harbored MSH6 G268A polymorphism and no significant rates of other SNP or gene mutation across MSH6 exons were detected. The median OS was 15.6 months for who harbored the SNP and 12.6 months for SNP-negative patients (log-rank test: P = 0.324). The median OS for the MGMT promoter methylation group (n = 25) and non-methylation group (n = 29) of the 54 GBM patients treated with TMZ was 21.3 and 8.9 months respectively (P = 0.002). In conclusion, we identified a high frequency of MSH6 G268A polymorphism in MSH6 gene, which did not have a notable influence on survival for the malignant glioma patients with/without TMZ treatment.
1Dept. of Immunology, Harbin Medical University , 150081 Harbin , China.
This article was published in the following journal.
Name: The International journal of neuroscience
Several studies have examined the association between hyperglycemia in the first 10 to 12 weeks following surgery and postoperative survival in glioblastoma multiforme (GBM) patients. We hypothesize t...
Several molecular glioma markers (including isocitrate dehydrogenase 1 [IDH1] mutation, amplification of the epidermal growth factor receptor [EGFR], and methylation of the O6-methylguanine-DNA methyl...
To the authors' knowledge, the impact of insurance status on the survival time of patients with glioblastoma multiforme (GBM) has not been fully understood. The objective of the current study was to c...
BACKGROUND The aim of this study was to investigate the association of the polymorphism of folylpolyglutamate synthetase (FPGS) with the dynamic plasma concentration of methotrexate (MTX) in pediatric...
Patients with glioblastoma (GBM) have an overall median survival of 15 months despite multimodal therapy. These catastrophic survival rates are to be correlated to systematic relapses that might arise...
This study is a phase I/II, national, multicenter, open-label study starting with a Phase I part followed by a Phase II part. The phase I part of the study aims to evaluate the safety of ...
NovoTTF-100A is a device and Bevacizumab is a study drug that have both been approved by the FDA (Food and Drug Administration) for use as monotherapy in treating glioblastoma multiforme. ...
This study aims to evaluate the role of Regorafenib in prolonging the overall survival of glioblastoma multiforme patients who progressed after surgery and Stupp regimen with or without be...
The primary goal of this study is to determine if a stem cell transplant in patients with newly diagnosed high risk CNS tumors (glioblastoma multiforme [GBM], high grade astrocytoma, pineo...
The standard therapy of glioblastoma (GBM) consists of gross total resection followed by focal irradiation to the tumor bed with concomitant and adjuvant temozolomide (TMZ). The associatio...
Ventilatory support system using frequencies from 60-900 cycles/min or more. Three types of systems have been distinguished on the basis of rates, volumes, and the system used. They are high frequency positive-pressure ventilation (HFPPV); HIGH-FREQUENCY JET VENTILATION; (HFJV); and high-frequency oscillation (HFO).
Non-ionizing electromagnetic energy in the frequency range of 100 gigahertz to 10 terahertz which spans from the mid-INFRARED RAYS frequency to the high-frequency edge of the MICROWAVES band.
Electromagnetic waves with frequencies between about 3 kilohertz (very low frequency - VLF) and 300,000 megahertz (extremely high frequency - EHF). They are used in television and radio broadcasting, land and satellite communications systems, radionavigation, radiolocation, and DIATHERMY. The highest frequency radio waves are MICROWAVES.
A single nucleotide variation in a genetic sequence that occurs at appreciable frequency in the population.
The use of focused, high-frequency sound waves to destroy tissue. It is sometimes used in conjunction with but is distinct from INTERVENTIONAL ULTRASONOGRAPHY.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...
Allergies Automimmune Disease Human Papillomavirus (HPV) Immunology Vaccine Immunology is the study of immunity and the defence mechanisms of the body. A greater understanding of immunology is needed to develop vaccines, understand ...