1,869 research outputs found

    Sequenceā€Based Saudi Population Data for The SE33 Locus

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    A set of 87 reference samples collected from the population of Saudi Arabia were sequenced using the ForenSeqTM DNA Signature Prep Kit on a MiSeq FGxTM. The FASTQ files contain the sequences of the SE33 STR, but are not reported by the ForenSeqTM Universal Analysis Software (UAS). The STRait Razor software was used to recover and to report SE33 sequenceā€based data for the Saudi population. Ninety-six sequence-based alleles were recovered, most of which had previously reported motif patterns. Two unreported motif patterns found in three alleles and seven novel allele sequences were reported. We also reported a single discordance between the sequence-based data and the CE data that was due to the presence of a common TTTT deletion. SE33 had 130% more sequence-based alleles; the highest number of observed sequence variants were in alleles 27.2 and 30.2, which each had 7 sequence variants. The statistical parameters emphasize the usefulness of using the sequence-based data

    Fatty acid activated PPARĪ³ promotes tumorigenicity of prostate cancer cells by up regulating VEGF via PPAR responsive elements of the promoter.

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    In previous work, it is suggested that the excessive amount of fatty acids transported by FABP5 may facilitate the malignant progression of prostate cancer cells through a FABP5-PPARĪ³-VEGF signal transduction axis to increase angiogenesis. To further functionally characterise the FABP5-PPARĪ³-VEGF signal transduction pathway, we have, in this work, investigated the molecular mechanisms involved in its tumorigenicity promoting role in prostate cancer. Suppression of PPARĪ³ in highly malignant prostate cancer cells produced a significant reduction (up to 53%) in their proliferation rate, invasiveness (up to 89%) and anchorage-independent growth (up to 94%) in vitro. Knockdown of PPARĪ³ gene in PC3-M cells by siRNA significantly reduced the average size of tumours formed in nude mice by 99% and tumour incidence by 90%, and significantly prolonged the latent period by 3.5 fold. Results in this study combined with some previous results suggested that FABP5 promoted VEGF expression and angiogenesis through PPARĪ³ which was activated by fatty acids transported by FABP5. Further investigations showed that PPARĪ³ up-regulated VEGF expression through acting with the PPAR-responsive elements in the promoter region of VEGF gene in prostate cancer cells. Although androgen can modulate VEGF expression through Sp1/Sp3 binding site on VEGF promoter in androgen-dependent prostate cancer cells, this route, disappeared as the cells gradually lost their androgen dependency; was replaced by the FABP5-PPARĪ³-VEGF signalling pathway. These results suggested that the FABP5-PPARĪ³-VEGF signal transduction axis, rather than androgen modulated route, may be a more important novel therapeutic target for angiogenesis-suppression treatment of castration resistant prostate cancer

    Impact of Deleterious Mutations on Structure, Function and Stability of Serum/Glucocorticoid Regulated Kinase 1: A Gene to Diseases Correlation.

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    Serum and glucocorticoid-regulated kinase 1 (SGK1) is a Ser/Thr protein kinase involved in regulating cell survival, growth, proliferation, and migration. Its elevated expression and dysfunction are reported in breast, prostate, hepatocellular, lung adenoma, and renal carcinomas. We have analyzed the SGK1 mutations to explore their impact at the sequence and structure level by utilizing state-of-the-art computational approaches. Several pathogenic and destabilizing mutations were identified based on their impact on SGK1 and analyzed in detail. Three amino acid substitutions, K127M, T256A, and Y298A, in the kinase domain of SGK1 were identified and incorporated structurally into original coordinates of SGK1 to explore their time evolution impact using all-atom molecular dynamic (MD) simulations for 200Ā ns. MD results indicate substantial conformational alterations in SGK1, thus its functional loss, particularly upon T256A mutation. This study provides meaningful insights into SGK1 dysfunction upon mutation, leading to disease progression, including cancer, and neurodegeneration

    An evaluation of the SureID 23comp Human Identification Kit for kinship testing

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    Short tandem repeat (STR) profiling has been routinely used in kinship testing since the introduction of commercial kits in the mid-1990s. While 15 to 23 STR loci normally give definitive results in simple kinship testing, additional loci are sometimes required to resolve complex cases. The SureID 23comp Human Identification Kit, recently released by Health Gene Technologies (China), multiplexes amelogenin and 22 autosomal STRs, 17 of which are non-CODIS STRs. This enables the profiling of 38ā€“40 loci when used in conjunction with widely used commercial kits. In this study, the kit was evaluated for kinship applications as a supplementary STR kit following the minimum criteria for validation recommended by the European Network of Forensic Science Institutes (ENFSI) and the Scientific Working Group on DNA Analysis Methods (SWGDAM) using 500 samples. Performance was comparable with other commercial kits demonstrating: repeatability and reproducibility; precision (maximum s.d. 0.1048ā€‰nt); accuracy, all alleles were within Ā±0.41ā€‰nt compared to the actual sizes; heterozygous peak balances at all loci >68%; stutter ratios ranged from 3.8% to 16.15%; full profiles were generated with 125ā€‰pg DNA (95.12% of alleles at 62ā€‰pg),; and we found 100% concordance over 5 common STRs with the GlobalFiler kit

    A Feynman integral in Lifshitz-point and Lorentz-violating theories in R<sup>D</sup> ā؁ R<i><sup>m</sup></i>

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    We evaluate a 1-loop, 2-point, massless Feynman integralĀ ID,m(p,q) relevant for perturbative field theoretic calculations in strongly anisotropicĀ d=D+mĀ dimensional spaces given by the direct sum RD ā؁ Rm . Our results are valid in the whole convergence region of the integral for generic (noninteger) codimensionsĀ DĀ andĀ m. We obtain series expansions ofĀ ID,m(p,q) in terms of powers of the variableĀ X:=4p2/q4, whereĀ p=|p|,Ā q=|q|, p Š„ RD, q Š„ Rm, and in terms of generalised hypergeometric functionsĀ 3F2(āˆ’X), whenĀ X&lt;1. These are subsequently analytically continued to the complementary regionĀ Xā‰„1. The asymptotic expansion in inverse powers ofĀ X1/2Ā is derived. The correctness of the results is supported by agreement with previously known special cases and extensive numerical calculations

    Single Nucleotide Polymorphisms in the PRDX3 and RPS19 and Risk of HPV Persistence and Cervical Precancer/Cancer

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    Host genetic factors might affect the risk of progression from infection with carcinogenic human papillomavirus (HPV), the etiologic agent for cervical cancer, to persistent HPV infection, and hence to cervical precancer and cancer.We assessed 18,310 tag single nucleotide polymorphisms (SNPs) from 1113 genes in 416 cervical intraepithelial neoplasia 3 (CIN3)/cancer cases, 356 women with persistent carcinogenic HPV infection (median persistence of 25 months) and 425 randomly selected women (non-cases and non-HPV persistent) from the 10,049 women from the Guanacaste, Costa Rica HPV natural history cohort. For gene and SNP associations, we computed age-adjusted odds ratio and p-trend. Three comparisons were made: 1) association with CIN3/cancer (compared CIN3/cancer cases to random controls), 2) association with persistence (compared HPV persistence to random controls), and 3) progression (compared CIN3/cancers with HPV-persistent group). Regions statistically significantly associated with CIN3/cancer included genes for peroxiredoxin 3 PRDX3, and ribosomal protein S19 RPS19. The single most significant SNPs from each gene associated with CIN3/cancer were PRDX3 rs7082598 (P(trend)<0.0001), and RPS19 rs2305809 (P(trend)=0.0007), respectively. Both SNPs were also associated with progression.These data suggest involvement of two genes, RSP19 and PRDX3, or other SNPs in linkage disequilibrium, with cervical cancer risk. Further investigation showed that they may be involved in both the persistence and progression transition stages. Our results require replication but, if true, suggest a role for ribosomal dysfunction, mitochondrial processes, and/or oxidative stress, or other unknown function of these genes in cervical carcinogenesis

    Smart homes and their users:a systematic analysis and key challenges

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    Published research on smart homes and their users is growing exponentially, yet a clear understanding of who these users are and how they might use smart home technologies is missing from a field being overwhelmingly pushed by technology developers. Through a systematic analysis of peer-reviewed literature on smart homes and their users, this paper takes stock of the dominant research themes and the linkages and disconnects between them. Key findings within each of nine themes are analysed, grouped into three: (1) views of the smart home-functional, instrumental, socio-technical; (2) users and the use of the smart home-prospective users, interactions and decisions, using technologies in the home; and (3) challenges for realising the smart home-hardware and software, design, domestication. These themes are integrated into an organising framework for future research that identifies the presence or absence of cross-cutting relationships between different understandings of smart homes and their users. The usefulness of the organising framework is illustrated in relation to two major concerns-privacy and control-that have been narrowly interpreted to date, precluding deeper insights and potential solutions. Future research on smart homes and their users can benefit by exploring and developing cross-cutting relationships between the research themes identified
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