Genetic polymorphisms in DNA repair genes may influence individual variation in DNA repair capacity and further influence the risk of developing cancer. However, little information is available on these polymorphisms in infertility. To investigate whether polymorphisms in DNA repair genes, X-ray repair cross-complementing group 1 (XRCC1) and xeroderma pigmentosum group D (XPD), alone or in comb...

OBJECTIVES To evaluate whether polymorphisms in the deoxy-ribonucleic acid (DNA) repair genes XRCC1 and XPD, have efficacy in the development of brain tumors. METHODS This is a case-population based study, including 135 cases of brain tumors, and 87 population based age- and gender-matched healthy controls. We examined the role of XRCC1 Arg 399Gln gene and XPD Lys751Gln gene polymorphisms, in...

A major barrier to understanding the role of polymorphic DNA repair genes for environmental cancer is that the functions of variant genotypes are largely unknown. Using our cytogenetic challenge assays, we conducted an investigation to address the deficiency. Using X-rays or ultraviolet (UV) light, we irradiated blood lymphocytes from 80 nonsmoking donors to challenge the cells to repair the in...

Mechanisms behind the strong associations of esophageal adenocarcinoma risk with gastroesophageal reflux (GOR) and body mass remain to be defined. In a nationwide population-based case-control study, we examined associations of polymorphisms in the DNA repair genes XPD, XPC, XRCC1 and XRCC3 with risk of esophageal adenocarcinoma, squamous-cell carcinoma (SCC) and gastric cardia adenocarcinoma, ...

BACKGROUND DNA repair genes (EG: xeroderma pigmentosum group D, XPD) may affect the capacity of encoded DNA repair enzymes to effectively remove DNA adducts or lesions, which may result in enhanced cancer risk. The association between XPD gene polymorphisms and the susceptibility of prostate cancer (PCa) was inconsistent in previous studies. METHODOLOGY/PRINCIPAL FINDINGS A meta-analysis base...

OBJECTIVE Xeroderma pigmentosum group D (XPD) is an essential gene involved in the nucleotide excision repair (NER) pathway. Two commonly studied single nucleotide polymorphisms (SNPs) of XPD (Lys751Gln, A>C, rs13181; Asp312Asn, G>A, rs1799793) are implicated in the modulation of DNA repair capacity, thus related to the responses to platinum-based chemotherapy. Here we performed a meta-analysis...

Mutations in XPD helicase, required for nucleotide excision repair (NER) as part of the transcription/repair complex TFIIH, cause three distinct phenotypes: cancer-prone xeroderma pigmentosum (XP), or aging disorders Cockayne syndrome (CS), and trichothiodystrophy (TTD). To clarify molecular differences underlying these diseases, we determined crystal structures of the XPD catalytic core from S...

AIM To evaluate the potential association of xeroderma pigmentosum group D (XPD) codon 751 variant with outcome after chemo-radiotherapy in patients with resected gastric cancer. METHODS We used PCR-RFLP to evaluate the genetic XPD Lys751Gln polymorphisms in 44 patients with stage III (48%) and IV (20%) gastric cancer treated with surgery following radiation therapy plus 5-fluorouracil/leucov...

Abstract In this work, we present a structural investigation of sub-monolayer films germanium on Ag(1 1 0) by means photoelectron spectroscopy (XPS) and diffraction (XPD), as well low-energy electron (LEED). Since the rising progress in synthesis various kinds nanoribbons, also nanoribbons (Ge-NR) have been synthesized 0), recently. Here, focus their evolution found formation two different phas...

A dual-polarized paralle-plate waveguide slot array antenna operating at 24.5 GHz band is proposed in this paper. The architecture consists of two orthogonally oriented 20×19 radiating arrays, where the slots are positioned collinearly. centered longitudinal feeding introduced into waveguides, which offer improved aperture efficiency and higher cross-polarization discrimination (XPD) compared t...