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Zhou, Jue-Yu,He, Li-Wen,Liu, Jie,Yu, Hai-Lang,Wei, Min,Ma, Wen-Li,Shi, Rong Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.21
Background: Excision repair crossing-complementing group 2 (ERCC2), also called xeroderma pigmentosum complementary group D (XPD), plays a crucial role in the nucleotide excision repair (NER) pathway. Previous epidemiological studies have reported associations between ERCC2 polymorphisms and non-Hodgkin lymphoma (NHL) risk, but the results have remained controversial. Materials and Methods: We conducted this meta-analysis based on eligible case-control studies to investigate the role of two ERCC2 polymorphisms (Lys751Gln and Asp312Asn) in determining susceptibility to NHL. Ten case-control studies from several electronic databases were included in our study up to August 14, 2014. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using fixed- or random-effects models to estimate the association strength. Results: The combined results based on all studies did not show any association between Lys751Gln/Asp312Asn polymorphisms and NHL risk for all genetic models. Stratified analyses by histological subtype and ethnicity did not indicate any significant association between Lys751Gln polymorphism and NHL risk. However, a significant reduced risk of NHL was found among population-based studies (Lys/Gln versus Lys/Lys: OR=0.87, 95% CI=0.77-0.99, P=0.037) but not hospital-based studies. As for Asp312Asn polymorphism, there was no evidence for the association between this polymorphism and the risk of NHL in all subgroup analyses. Conclusions: This meta-analysis suggests that there may be no association between Lys751Gln/Asp312Asn polymorphism and the risk of NHL and its two subtypes, whereas ERCC2 Lys751Gln heterozygote genotype may provide protective effects against the risk of NHL in population-based studies. Therefore, large-scale and well-designed studies are needed to clarify the effects of haplotypes, gene-gene, and gene-environment interactions on these polymorphisms and the risk of NHL and its different histological subtypes in an ethnicity specific population.
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Zhi-Xin He,Hai-Tao Yu,Fei He,Ying Xie,Lang Yuan,Ting-Feng Yi 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.119 No.-
Li-rich layered Li2MoO3 (LMO) materials are one promising cathode materials for Li-ion batteries due totheir high theoretical capacity and without oxygen evolution. However, the poor electrical conductivityand air instability have limited its application as a cathode material for lithium-ion battery. To solve theseproblems, Li2MoO3/g-C3N4 composites were successfully constructed by combining the molten salt andball milling methods. Carbon nitride (g-C3N4) with an abundant nitrogen-containing carbon frameworkcontains a large number of ‘‘hole” defects and double-bonded nitrogen vacancy edges, which are favorablefor the adsorption and diffusion of Li ions. In addition, density functional theory (DFT) calculationsrevealed that a stable interface can be formed between g-C3N4 and LMO, which also leads to the improvementof the electronic conductivity and the reduction of interfacial impedance of the composite. Therefore, the electrochemical performance of the composite material is significantly improved. The dischargecapacity of GLMO-5 at a current density of 1700 mA g1 is 64.6 mAh/g, which is much greater thanthe value (29.9 mAh/g) of the original LMO sample under the same conditions. EIS further shows thatGLMO-5 has the highest discharge capacity with a DLi+ value of 1.94 1014 cm2 s1. These results indicatethat constructing LMO-based composites with a highly stable layered material containing unsaturatedfunctional groups should be an effective strategy to enhance the interfacial stability, electronicconductivity, and thus the electrochemical performances of the cathode materials.
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