196,194 research outputs found
Efficient removal of hospital pathogens from hard surfaces by a combined use of bacteriophages and probiotics: potential as sanitizing agents [Corrigendum]
No full textD’Accolti M, Soffritti I, Piffanelli M, Bisi M, Mazzacane S, Caselli E. Infect Drug Resist. 2018;11:1015–1026. Page 1018, Bacteriophages section, the text “All bacteriophages used in this study were obtained from Eliava Institute (Staphylococcal phage and Pyophage; GA, USA)” should read “All bacteriophages used in this study were obtained from Eliava Institute (Staphylococcal phage and Pyophage; Tbilisi, Georgia)”. Read the original article 
Cloning and analysis of a cDNA coding for the bifunctional dihydrofolate reductase-thymidylate synthase of Daucus carota
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REGULATION OF PROGESTERONE-RECEPTOR GENE-EXPRESSION
No full textThe levels of progesterone receptor (PR) mRNA, PR protein, and [3H]R5020 binding activity were measured in parallel experiments conducted on a T47D subline expressing the estrogen receptor. A significant increase of PR mRNA levels could be detected within 6 h of exposure of the cells to estradiol (10-8 M). The changes in mRNA, however, did not lead to any variation of PR protein levels of [3H]R5020 binding activity. A parallel analysis of PR mRNA and [3H]R5020 binding was then performed in a series of tumor biopsies. In estrogen receptor-positive and PR-positive tissues a correlation among the two values was found. It is postulated that the above mentioned data could reflect the existence of a difference in the mechanisms controlling the numerous steps of the PR synthesis in the various hormone-responsive tissues. This variability could allow an organ-specific response to the cyclic changes of circulating hormone
Genome scan of Kenyan Themeda triandra populations by AFLP markers reveals a complex genetic structure and hints for ongoing environmental selection
No full textAbstractTropical and subtropical rangeland systems provide core ecosystem services for the welfare of human populations that rely on readiness and quality of forage resources. However, forage species are still widely overlooked by molecular biology studies. In the present study, we employ 366 AFLP markers to provide the first description of the genetic landscape of three Kenyan populations of Themeda triandra Forssk., a key wild grass forage species. By including Australian T. triandra accessions and other closely related species in a molecular phylogeny, we provide a first evaluation of the relationships existing between African and Australian germplasm. Genetic diversity, population genetic structure and recombination rates in Kenyan T. triandra populations were investigated in detail. GPS coordinates of each sampled population were used to retrieve meteorological data at specific locations, and environmental factors likely contributing to T. triandra genetic differentiation were taken into consideration using a correlative approach based on outlier loci distribution. The use of molecular markers unveiled some previously unknown aspects about the biology of T. triandra, namely: i) African and Australian T. triandra genotypes analyzed in this study are genetically undistinguishable, ii) sexual recombination of Kenyan T. triandra is likely to play a major role in its reproduction, and iii) environmental characteristics of the collection sites are correlated with the allelic distribution of a limited set of loci under selection
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
Different patterns of induction of FGF-2, FGF-1 and BDNF mRNAs during kindling epileptogenesis in the rat
No full textNeurotrophic factors (NTF) play important roles in the developing and in the adult brain. NTF involvement in neuronal plasticity is suggested by the modulation of NTF expression patterns in different physiological and pathological situations and by the effects they produce in the adult brain (e.g. axonal sprouting induction and neuroprotection). We used the RNAase protection assay to investigate the expression patterns of some NTFs during amygdala kindling, an animal model of epilepsy in which 'pathological' neuronal plasticity appears to occur. After a single kindling stimulation, fibroblast growth factor-2 (FGF-2) mRNA levels were increased in the hippocampus, the cortex and the hypothalamus, whereas they were not significantly altered in the thalamus and the striatum. A single stimulation did not alter fibroblast growth factor-1 (FGF-1) and brain-derived neurotrophic factor (BDNF) gene expression. Fully kindled animals, left unstimulated for a week, did not exhibit any alteration in..
Evaluation and comparison of the analytical performances of two RIA kits for the assay of atrial natriuretic peptides (ANP)
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