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71.
Haiman CA Chen GK Vachon CM Canzian F Dunning A Millikan RC Wang X Ademuyiwa F Ahmed S Ambrosone CB Baglietto L Balleine R Bandera EV Beckmann MW Berg CD Bernstein L Blomqvist C Blot WJ Brauch H Buring JE Carey LA Carpenter JE Chang-Claude J Chanock SJ Chasman DI Clarke CL Cox A Cross SS Deming SL Diasio RB Dimopoulos AM Driver WR Dünnebier T Durcan L Eccles D Edlund CK Ekici AB Fasching PA Feigelson HS Flesch-Janys D Fostira F Försti A Fountzilas G 《Nature genetics》2011,43(12):1210-1214
Estrogen receptor (ER)-negative breast cancer shows a higher incidence in women of African ancestry compared to women of European ancestry. In search of common risk alleles for ER-negative breast cancer, we combined genome-wide association study (GWAS) data from women of African ancestry (1,004 ER-negative cases and 2,745 controls) and European ancestry (1,718 ER-negative cases and 3,670 controls), with replication testing conducted in an additional 2,292 ER-negative cases and 16,901 controls of European ancestry. We identified a common risk variant for ER-negative breast cancer at the TERT-CLPTM1L locus on chromosome 5p15 (rs10069690: per-allele odds ratio (OR) = 1.18 per allele, P = 1.0 × 10(-10)). The variant was also significantly associated with triple-negative (ER-negative, progesterone receptor (PR)-negative and human epidermal growth factor-2 (HER2)-negative) breast cancer (OR = 1.25, P = 1.1 × 10(-9)), particularly in younger women (<50 years of age) (OR = 1.48, P = 1.9 × 10(-9)). Our results identify a genetic locus associated with estrogen receptor negative breast cancer subtypes in multiple populations. 相似文献
72.
Genome-wide association study identifies a common variant associated with risk of endometrial cancer
Spurdle AB Thompson DJ Ahmed S Ferguson K Healey CS O'Mara T Walker LC Montgomery SB Dermitzakis ET;Australian National Endometrial Cancer Study Group Fahey P Montgomery GW Webb PM Fasching PA Beckmann MW Ekici AB Hein A Lambrechts D Coenegrachts L Vergote I Amant F Salvesen HB Trovik J Njolstad TS Helland H Scott RJ Ashton K Proietto T Otton G;National Study of Endometrial Cancer Genetics Group Tomlinson I Gorman M Howarth K Hodgson S Garcia-Closas M Wentzensen N Yang H Chanock S Hall P 《Nature genetics》2011,43(5):451-454
Endometrial cancer is the most common malignancy of the female genital tract in developed countries. To identify genetic variants associated with endometrial cancer risk, we performed a genome-wide association study involving 1,265 individuals with endometrial cancer (cases) from Australia and the UK and 5,190 controls from the Wellcome Trust Case Control Consortium. We compared genotype frequencies in cases and controls for 519,655 SNPs. Forty seven SNPs that showed evidence of association with endometrial cancer in stage 1 were genotyped in 3,957 additional cases and 6,886 controls. We identified an endometrial cancer susceptibility locus close to HNF1B at 17q12 (rs4430796, P = 7.1 × 10(-10)) that is also associated with risk of prostate cancer and is inversely associated with risk of type 2 diabetes. 相似文献
73.
Neveen S. Gadallah Ahmed M. Soliman Usama M. Abu El-Ghiet Tarek Y. Elsheikh Hathal M. Al Dhafer 《Journal of Natural History》2018,52(31-32):2071-2096
The family Leucospidae (Hymenoptera: Chalcidoidea) from Saudi Arabia is reviewed. Specimens were mainly collected from the south-western region of the country – Raydah (Abha, Asir), Sajid (Farasan Islands, Jazan) and Wadi Tourabah (Mandaq, Al Baha); and from Egypt – Wadi Khoshb (Sinai Peninsula), as well as a specimen (Leucospis elegans Klug) deposited in the Efflatoun Bey collection, Cairo University, Egypt. The genus Micrapion Kriechbaumer is here recorded for the first time from the fauna of the Arabian Peninsula, with a single species, M. clavaforme. Leucospis arabica Gadallah and Soliman sp. nov. (dorsigera group) is described. Leucospis africana (elegans group) is also newly recorded from the Saudi Arabian fauna, in addition to L. elegans which has been previously recorded. An illustrated key and a list of all leucospid species recorded and expected to occur in Saudi Arabia are provided.
www.zoobank.org/lsid:Zoobank.org:pub:40BEF37F-0D92-4AEF-9990-30C1CFC3A7A7 相似文献
74.
在非局部函数依赖于未知变量在整个定义区间上的值的情形下,应用随机分析理论、Schauder不动点定理及近似方法,假设非线性函数和非局部项是Carathéodory连续的并且满足较弱增长条件,获得了一类分数阶随机发展方程非局部问题mild解的存在性结果。此工作可以看作是对具有一般非局部初始条件的分数阶发展方程建立解的存在性理论的一种尝试。最后举例说明所得抽象结果在具有非局部积分条件的分数阶随机偏微分方程中的应用。 相似文献
75.
Nollaig M. Bourke Silvia Napoletano Ciaran Bannan Suaad Ahmed Colm Bergin Áine McKnight Nigel J. Stevenson 《Cellular and molecular life sciences : CMLS》2018,75(5):775-783
Viral infections, including HIV, trigger the production of type I interferons (IFNs), which in turn, activate a signalling cascade that ultimately culminates with the expression of anti-viral proteins. Mounting evidence suggests that type I IFNs, in particular IFN-α, play a pivotal role in limiting acute HIV infection. Highly active anti-retroviral treatment reduces viral load and increases life expectancy in HIV positive patients; however, it fails to fully eliminate latent HIV reservoirs. To revisit HIV as a curable disease, this article reviews a body of literature that highlights type I IFNs as mediators in the control of HIV infection, with particular focus on the anti-HIV restriction factors induced and/or activated by IFN-α. In addition, we discuss the relevance of type I IFN treatment in the context of HIV latency reversal, novel therapeutic intervention strategies and the potential for full HIV clearance. 相似文献
76.
77.
Electrospinning technique was used for the fabrication of poly ( vinyl alcohol ) ( PVA ) / regenerated silk fibrnin ( SF ) composite nanofibers, loaded with ciprofloxacin HCI (CipHCI) as a wound dressing. Electrospun PVA/SF/CipHCI composite nanofibers were stabilized against dissolving in water by heating in an oven at 155℃ for 5 min. Incorporation of CipHCi into electrospun nanofibers was confirmed by SEM and FT.IR spectra. Further the mechanical properties test illustrated that the addition of CipHCI enhanced the mechanical properties of PVA and PVA/SF nanofibers. The antibacterial activities against Escherichia coU (E. coli ) ( gram-negative ) and Staphylococcus aureus ( S. aureus ) (gram-positive) organisms were evaluated by disk diffusion method; and results suggested that electrospun PVA/CipHCI and PVA/SF/ CipHCI composite nanofibers showed a remarkable antibacterial activity. 相似文献
78.
79.
The iron doped brushite(Fe-DCPD) nano particles were synthesized via co-precipitation method with Fe concentrations(0 ≤x≤ 1) in steps 0.2. The influence of iron concentration on the crystallinity, particle shape,morphology, optical, magnetic and electrical properties was investigated. The results showed that iron doping content is the crucial factor in the variation of physical properties. The particle shape changed from spheres at x=0.2 to be fiber network at x = 0.8. The saturation magnetization(Ms) increased from 0.4(emu/g) at x = 0.2 to 1.6(emu/g) at x = 0.8 which is considered more than four times with a considerable decrease of coercive field. 相似文献
80.
On Similarity Indices and Correction for Chance Agreement 总被引:1,自引:1,他引:0
Ahmed N. Albatineh Magdalena Niewiadomska-Bugaj Daniel Mihalko 《Journal of Classification》2006,23(2):301-313
Similarity indices can be used to compare partitions (clusterings) of a data set. Many such indices were introduced in the
literature over the years. We are showing that out of 28 indices we were able to track, there are 22 different ones. Even
though their values differ for the same clusterings compared, after correcting for agreement attributed to chance only, their
values become similar and some of them even become equivalent. Consequently, the problem of choice of the index to be used
for comparing different clusterings becomes less important. 相似文献