400 research outputs found

    The Effect of Alcohol Prep Pads and Blood Drop Number On Capillary Blood Glucose Values

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    Capillary blood glucose monitoring is a common nursing procedure. However, no consensus exists regarding which drop of blood to test (drop 1 vs. drop 2) and whether using alcohol pads to prepare the fingertip affects blood glucose values. The purpose of this study was to evaluate the impact of these factors and contribute to the development of evidence-based nursing protocols for capillary blood glucose monitoring. A quantitative, quasi-experimental study was conducted in a laboratory at the University of New Hampshire. 96 volunteers were randomly assigned to one of three groups. Each group underwent a pair of capillary blood glucose tests to determine the impact of alcohol prep pads and blood drop number. Data was analyzed using paired t-tests and ANOVA. Results showed that neither alcohol prep pads alone nor blood drop number alone affect blood glucose results. However, when an alcohol prep pad was used, values from blood drop 1 were a mean of 2.1 mg/dL (Std. Dv. = 5.03) less than blood drop 2 (p = .042). This difference is clinically insignificant and would not likely affect patient care. These findings indicate that it is not necessary to wipe away the first drop of blood, even when 70% isopropyl alcohol is used for skin preparation. Further research needs to be done to confirm these results

    The Effect of Alcohol Prep Pads and Blood Drop Number On Capillary Blood Glucose Values

    Get PDF
    Capillary blood glucose monitoring is a common nursing procedure. However, no consensus exists regarding which drop of blood to test (drop 1 vs. drop 2) and whether using alcohol pads to prepare the fingertip affects blood glucose values. The purpose of this study was to evaluate the impact of these factors and contribute to the development of evidence-based nursing protocols for capillary blood glucose monitoring. A quantitative, quasi-experimental study was conducted in a laboratory at the University of New Hampshire. 96 volunteers were randomly assigned to one of three groups. Each group underwent a pair of capillary blood glucose tests to determine the impact of alcohol prep pads and blood drop number. Data was analyzed using paired t-tests and ANOVA. Results showed that neither alcohol prep pads alone nor blood drop number alone affect blood glucose results. However, when an alcohol prep pad was used, values from blood drop 1 were a mean of 2.1 mg/dL (Std. Dv. = 5.03) less than blood drop 2 (p = .042). This difference is clinically insignificant and would not likely affect patient care. These findings indicate that it is not necessary to wipe away the first drop of blood, even when 70% isopropyl alcohol is used for skin preparation. Further research needs to be done to confirm these results

    FlyPrimerBank: An Online Database for Drosophila melanogaster Gene Expression Analysis and Knockdown Evaluation of RNAi Reagents

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    The evaluation of specific endogenous transcript levels is important for understanding transcriptional regulation. More specifically, it is useful for independent confirmation of results obtained by the use of microarray analysis or RNA-seq and for evaluating RNA interference (RNAi)-mediated gene knockdown. Designing specific and effective primers for high-quality, moderate-throughput evaluation of transcript levels, i.e., quantitative, real-time PCR (qPCR), is nontrivial. To meet community needs, predefined qPCR primer pairs for mammalian genes have been designed and sequences made available, e.g., via PrimerBank. In this work, we adapted and refined the algorithms used for the mammalian PrimerBank to design 45,417 primer pairs for 13,860 Drosophila melanogaster genes, with three or more primer pairs per gene. We experimentally validated primer pairs for ~300 randomly selected genes expressed in early Drosophila embryos, using SYBR Green-based qPCR and sequence analysis of products derived from conventional PCR. All relevant information, including primer sequences, isoform specificity, spatial transcript targeting, and any available validation results and/or user feedback, is available from an online database (www.flyrnai.org/flyprimerbank). At FlyPrimerBank, researchers can retrieve primer information for fly genes either one gene at a time or in batch mode. Importantly, we included the overlap of each predicted amplified sequence with RNAi reagents from several public resources, making it possible for researchers to choose primers suitable for knockdown evaluation of RNAi reagents (i.e., to avoid amplification of the RNAi reagent itself). We demonstrate the utility of this resource for validation of RNAi reagents in vivo

    Leading-order QCD Analysis of Neutrino-Induced Dimuon Events

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    The results of a leading-order QCD analysis of neutrino-induced charm production are presented. They are based on a sample of 4111 \numu- and 871 \anumu-induced opposite-sign dimuon events with Eμ1,Eμ2>6 GeVE_{\mu 1},E_{\mu 2} > 6~{\rm GeV}, 355.5GeV235 5.5\,{\rm GeV^2}, observed in the CHARM~II detector exposed to the CERN wideband neutrino and antineutrino beams. The analysis yields the value of \linebreak the charm quark mass mc=1.79±0.38GeV/c2m_c=1.79\pm0.38\,{\rm GeV}/c^2 and the Cabibbo--Kobayashi--Maskawa matrix element Vcd=0.219±0.016|V_{cd}|=0.219\pm0.016. The strange quark content of the nucleon is found to be suppressed with respect to non-strange sea quarks by a factor κ=0.39±0.09\kappa =0.39\pm0.09

    Experimental search for muonic photons

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    We report new limits on the production of muonic photons in the CERN neutrino beam. The results are based on the analysis of neutrino production of dimuons in the CHARM II detector. A 90%90\% CL limit on the coupling constant of muonic photons, αμ/α<(1.5÷3.2)×106\alpha_{\mu} / \alpha < (1.5 \div 3.2) \times10^{-6} is derived for a muon neutrino mass in the range mνμ=(1020÷105)m_{\nu_{\mu}} = (10^{-20} \div 10^5) eV. This improves the limit obtained from a precision measurement of the anomalous magnetic moment of the muon (g2)μ(g-2)_\mu by a factor from 8 to 4

    Arabidopsis R2R3-MYB transcription factor AtMYB60 functions as a transcriptional repressor of anthocyanin biosynthesis in lettuce (Lactuca sativa)

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    The MYB transcription factors play important roles in the regulation of many secondary metabolites at the transcriptional level. We evaluated the possible roles of the Arabidopsis R2R3-MYB transcription factors in flavonoid biosynthesis because they are induced by UV-B irradiation but their associated phenotypes are largely unexplored. We isolated their genes by RACE-PCR, and performed transgenic approach and metabolite analyses in lettuce (Lactuca sativa). We found that one member of this protein family, AtMYB60, inhibits anthocyanin biosynthesis in the lettuce plant. Wild-type lettuce normally accumulates anthocyanin, predominantly cyanidin and traces of delphinidin, and develops a red pigmentation. However, the production and accumulation of anthocyanin pigments in AtMYB60-overexpressing lettuce was inhibited. Using RT-PCR analysis, we also identified the complete absence or reduction of dihydroflavonol 4-reductase (DFR) transcripts in AtMYB60- overexpressing lettuce (AtMYB60-117 and AtMYB60-112 lines). The correlation between the overexpression of AtMYB60 and the inhibition of anthocyanin accumulation suggests that the transcription factorAtMYB60 controls anthocyanin biosynthesis in the lettuce leaf. Clarification of the roles of the AtMYB60 transcription factor will facilitate further studies and provide genetic tools to better understand the regulation in plants of the genes controlled by the MYB-type transcription factors. Furthermore, the characterization of AtMYB60 has implications for the development of new varieties of lettuce and other commercially important plants with metabolic engineering approaches
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