Search results for "rase"

An improved high yield method to obtain microsatellite genotypes from red deer antlers up to 200 years old.

2013

Analysis of DNA from older samples, such as museum specimen, is a promising approach to studying genetics of populations and ecological processes across several generations. Here, we present a method for extracting high quality nuclear DNA for microsatellite analysis from antlers of red deer (Cervus elaphus). The genotyping of individuals was based on nine microsatellite loci. Because the amount of DNA found in antlers was high, we could reduce the amount of sample and chemicals used and shorten the decalcification time in comparison to other methods. Using these methods, we obtained genotypes from antlers up to 200 years old.

The Sea Urchin sns Insulator Blocks CMV Enhancer following Integration in Human Cells

2001

Insulators are a new class of genetic elements that attenuate enhancer function directionally. Previously, we characterized in sea urchin a 265-bp-long insulator, termed sns. To test insulator activity following stable integration in human cells, we placed sns between the CMV enhancer and a tk promoter up-stream of a GFP transgene of plasmid or retroviral vectors. In contrast to controls, cells transfected or transduced with insulated constructs displayed a barely detectable fluorescence. Southern blot and PCR ruled out vector rearrangement following integration into host DNA; RNase protection confirmed the enhancer blocking activity. Finally, we demonstrate that two cis-acting sequences, p…

Stearoyl-CoA desaturase 1 coding sequences abd antisense RNA affect lipid secretion in transfected chicken LMH hepatoma cells

2000

Hepatic stearoyl CoA desaturase (SCD) activity in chickens from a fat line is higher than that of chickens from a lean line and correlates with plasma triacylglycerol concentrations. Furthermore, in these lines, the hepatic SCD1 mRNA level is positively correlated with the adipose tissue weight. To analyze the contribution of the SCD1 gene in the regulation of adiposity in the early stages of triacylglycerol secretion, SCD1 coding sequence and antisense RNA expression vectors were transfected in LMH cells. After selection, these cells were analyzed with regard to SCD1 expression and lipid secretion. The amounts of secreted triacylglycerols and phospholipids were shown to be higher in LMH ce…

Acetylcholinesterase activity in juvenileCiona intestinalis(Ascidiacea, Urochordata) after exposure to tributyltin

2012

The acetylcholinesterase (AChE) activity has been studied in 4-day post-fertilization juveniles of Ciona intestinalis exposed to tributyltin (TBT) at 10-5 M using the histochemical method of Karnovsky and Roots. Relative to vertebrate tissues and organs, the development of adult form of ascidians is interesting, because the analysis of many nuclear genes indicated that the ascidians are the closest living relatives of the vertebrates. Therefore, toxicity research using different approaches could provide data for comparative studies with vertebrates. AChE is over-expressed under chemical stress and in some diseases of vertebrates. Therefore, AChE is considered a biomarker of environmental co…

Casein kinase 2 inhibits HomolD-directed transcription by Rrn7 in Schizosaccharomyces pombe.

2014

In Schizosaccharomyces pombe, ribosomal protein gene (RPG) promoters contain a TATA analogue element called the HomolD box. The HomolD-binding protein Rrn7 forms a complex with the RNA polymerase II machinery. Despite the importance of ribosome biogenesis to cell survival, the mechanisms involved in the regulation of transcription of eukaryotic RPGs are unknown. In this study, we identified Rrn7 as a new substrate of the pleiotropic casein kinase 2 (CK2), which is a regulator of basal transcription. Recombinant Rrn7 from S. pombe, which is often used as a model organism for studying eukaryotic transcription, interacted with CK2 in vitro and in vivo. Furthermore, CK2-mediated phosphorylation…

Retinoid dynamics in chicken eye during pre- and postnatal development.

1994

Changes in the steady state level of retinols, retinaldehydes and retinyl esters in the trans and 11-cis forms and trans retinoic acid were measured in whole chicken eye during development from day 6 in ovo to day 3 post-hatch. These retinoids, quantified by different HPLC systems, were detected in this time sequence: trans-retinol and trans-retinyl esters in the first week in ovo, 11-cis-retinol in the second week. The highest level of 11-cis-retinaldehyde and 11-cis-retinyl esters was reached at the end of development in ovo; however, their levels increased further after hatching. The retinoic acid level decreased at the end of the first week, rising again at the end of the second week. T…

Analiza porównawcza wybranych frazeologizmów animalistycznych w trzech językach słowiańskich i w dwóch germańskich

2016

In the contemporary civilization, our world and that of animals merge more and more extensively, and so they are becoming increasingly dependent on each other. On the one hand, human beings - having considered themselves lords of the world - try hard to be as humane as they can towards animals, but on the other - they treat them utterly instrumentally, which is widely reflected, among others, in our languages. This particular observation has served as a basis for the present article. The article - after a concise conceptual part - presents selected fragments (about 40%) of the results of the empirical linguistic research which the author has performed in order to study qualitatively and qua…

Chemical composition, antioxidant and anticholinesterase activity of the essential oil of algerian cachrys sicula L

2021

In this work, in order to explore a new Algerian medicinal plant used in traditional medicine, the essential oil of the leaves of Cachrys sicula L. (Apiaceae) collected from Algeria, obtained by hydrodistillation, was analyzed by GC/MS. Thirty-two compounds were identified accounting for 98.6% of the total oil, which is characterized by a high content of monoterpene hydrocarbons (74.8%). The main constituents of the essential oil were β-pinene (17.9%), sabinene (17.8%), myrcene (12%), and α-pinene (11.4%). In vitro antioxidant activity of the essential oil was assayed by three methods, namely ABTS•+, metal chelating, and DPPH• assays. The antioxidant activity of the oil was higher in the AB…

Geographic variation in the warning signals of the wood tiger moth (Parasemia plantaginis; Arctiidae)

2013

Esteve Graset. Una dramaturgia interdisciplinaria. Materiales del discurso escénico en Esteve Graset

2016

Esteve Graset es uno de los artistas españoles más desconocidos y a la vez interesantes de la escena nacional e internacional de las últimas décadas. Es autor de textos, instalaciones escénicas, importantes trabajos sobre la voz humana (conciertos) y muchas producciones escénicas con actores y bailarines en las que se pone en práctica la suma de todos sus conocimientos e inquietudes. Con los materiales de sus propias representaciones organiza instalaciones en las que da vida a los objetos. Su personalidad independiente y evolutiva, su discurso como actor, director, autor, creador y pedagogo, así como la gran variedad de disciplinas artísticas que contempla su obra, y su compromiso con el ti…