Search Results
Results 201 - 250 of 582
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Gaby, Alan - - 2010
Klotter, Jule - - 2010
Klotter, Jule - - 2010
Klotter, Jule - - 2010
Klotter, Jule - - 2010
Collin, Jonathan - - 2010
Chen, Xiaoguang - - 2010
It has been documented that chemokines can positively regulate liver regeneration at the tissue level after partial hepatectomy. However, the precise mechanism of the effects of chemokines on regeneration at the cellular level remains poorly defined. In this study, 8 cell types from rat regenerating liver at 8 recovery time ...
Navabi, Z.K. - - 2010
The Brassica B-genome species possess many valuable agronomic and disease resistance traits. To transfer traits from the B genome of B. carinata into B. napus, an interspecific cross between B. napus and B. carinata was performed and a doubled haploid (DH) population was generated from the [BC.sub.3][S.sub.3] generation. Successful production ...
Hu, Guanjing - - 2010
Transposable elements (TEs) are a major component of plant genomes. It is of particular interest to explore the potential activation of TE proliferation, especially in hybrids and polyploids, which often are associated with rapid genomic and epigenetic restructuring. Here we explore the consequences of genomic merger and doubling on copia ...
Lopez, Alicia - - 2010
Subseries Turnera comprises a polyploid complex with ploidy levels ranging from diploid (2n = 2x = 10) to octoploid (2n = 8x = 40). The use of fluorescent in situ hybridization greatly improved the knowledge of the karyotypes of Turnera species by detecting and mapping rDNA sites. Interspecific variability in ...
Virtue, S. - - 2010
Many genes express multiple transcript isoforms generated by alternative splicing of mRNA. Using real-time PCR, it is straightforward to determine the relative expression level of each isoform independently. However, it is less trivial to determine the relative proportions of different isoforms in a cDNA sample. The relative proportions of different ...
Daimon, Takaaki - - 2010
On the W chromosome of the silkworm, Bombyx mori, we found a novel piggyBac-like DNA transposon that potentially encodes an intact transposase (610 amino acid residues), which is flanked by 16-bp perfect inverted terminal repeats and a duplicated TTAA target site. Interestingly, we also identified another intact copy of this ...
La Mura, - - 2010
The Brassicaceae are targets for DNA manipulation to modify oil content and composition. However, any strategy for creating novel products using genetic modification or traditional breeding must take into account the potential for hybridization with other Brassica species, many of which are important sources of edible oils. In this study ...
Yu, G.T. - - 2010
Septoria speckled leaf blotch (SSLB), caused by Septoria passerinii, is one of the most important foliar diseases of barley (Hordeum vulgare L.) in North America. The primary problem caused by this disease is substantial yield loss. The objective of this study was to determine the chromosomal location of SSLB resistance ...
Garg, A. - - 2010
Selector proteins are transcription factors that coordinate the formation and identity of organs and appendages. The proper formation of these tissues requires the selector proteins to regulate the expression of a large set of genes. Many selector proteins are involved in regulating multiple developmental processes, yet it is not completely ...
Dhanoa, M.S. - - 2010
Supplementary information relevant to structural relationship regression in biology as discussed by McArdle (1988; Can. J. Zool. 66(11): 2329-2339) is presented. Although McArdle presented both linear and multiple linear regression models, we limit our comment to the linear model only. McArdle's eq. 2 is corrected. Deming's alternative form of the ...
Soria-Valles, C. - - 2010
The subterranean blind mole rats of the superspecies Spalax ehrenbergi (Nehring, 1898) have developed several strategies to cope with changing concentrations of underground oxygen. Such an atmosphere induces the generation of reactive oxygen species that can cause oxidative damage without proper control. To understand how S. ehrenbergi appear to be ...
Proppe, D.S. - - 2010
The acoustic adaptation hypothesis predicts that bird vocalizations will be structured to optimize their transmission through native vegetation. In cases where communication with distant individuals is needed, optimal transmission implies maximal propagation. In other cases, vocal signals are intended for nearby conspecifics and optimal transmission may be only a few ...
Costantini, David - - 2010
Oxidative stress has been suggested to be affected by the growth and developmental period of animals, hence it may play an important role in the trade-off between growth and self-maintenance. In this study, I analysed the effects of two different diet regimes (high-quality diet, HQD; low-quality diet, LQD) on growth ...
Bessler, Scott - - 2010
Specific dynamic action (SDA), the cumulative energy expended on digestion and assimilation, can contribute significantly to individual daily energy expenditure (DEE). The Common Garter Snake (Thamnophis sirtalis (L., 1758)) is a widely distributed generalist predator that could experience considerable variation in SDA and hence the contribution of SDA to DEE. ...
Jacquin, Lisa - - 2010
Reproduction management of natural popsulations can have long-term consequences that have to be examined to avoid unwanted side effects. Management policies of urban Pigeons (Columba livia Gmelin, 1789) include the set up of public Pigeon houses that aim at limiting hatching rate by egg removal. However, long-term consequences of this ...
Foster, K.L. - - 2010
Aquatic flight is the primary locomotor mode for many animals, including penguins and other diving birds, turtles, and fishes, where labriform and rajiform swimming have been the focus of much interest. However, despite its interesting phylogenetic placement, little is known about the aquatic flight of the sister lineage to the ...
Becker, Nina - - 2010
Fluctuations in food availability may result in drastic changes of main dietary habits in some animals despite the lack of adaptations to alternative food types. We compared feeding efficiency between the nectarivorous bat Glossophaga commissarisi Gardner, 1962 (Phyllostomidae) that switches during nectar shortages to frugivory and the specialized frugivore Carollia ...
Guderley, Helga - - 2010
Evolutionary explanations of the adaptive value of animal characteristics are often expressed in energetic terms, but unless they are accompanied by demonstrations of limited energy availability, they remain speculative. In this review, we argue that metabolic power budgeting provides easily testable mechanisms through which energetically efficient attributes could become adaptive. ...
Liang, Faquan - - 2010
Endothelin is a potent vasoconstrictor often up-regulated in hypertension. Endothelin vasoconstriction is mediated via the G-protein coupled endothelin A ([ET.sub.A]) receptor present on vascular smooth muscle. Endothelin receptor antagonists (ERAs) have been shown to antagonize ET-induced vasoconstriction. We describe the primary pharmacology of darusentan, a propanoic acid based ERA currently ...
Meoli, David - - 2010
Endothelin 1 (ET-1) is an endogenous peptide that promotes vasoconstriction, endothelial and smooth muscle cell (SMC) proliferation, and fibrosis. ET-1 receptor antagonists are an important treatment strategy for pulmonary arterial hypertension, but less effective in systemic vascular disease. This observation suggests a special role for ET-1 in the pulmonary circulation. ...
Avedanian, Levon - - 2010
Using immunofluorescence and real 3-D confocal microscopy, our results showed the presence of ET-1, [ET.sub.A], and [ET.sub.B] receptors in isolated human aortic vascular endothelial cells (hVECs). The level of the peptide and its receptors was significantly higher in the nucleus (including the nuclear envelope membranes) than in the cytosol (including ...
Rufanova, Victoriya - - 2010
The guanine nucleotide exchange factor C3G is one of the mediators of endothelin-1 (ET-1) intracellular signaling cascades and is vital for kidney development and homeostasis. The aim of the current study was to analyze the specificity of ET-1-induced signaling via C3G in rat glomerular mesangial cells (GMC) and to investigate ...
Whyteside, A.R. - - 2010
Plasma concentrations of the mitogenic peptide endothelin-1 (ET-1) are significantly elevated in men with metastatic prostate cancer (PC). ET-1 also contributes to the transition of hormonally regulated androgen-dependent PC to androgen-independent disease. ET-1 is generated from big-ET-1 by endothelin-converting enzyme (ECE-1). ECE-1 is present in PC cell lines and primary ...
Cianfrocca, Roberta - - 2010
The contribution of the endothelin-1 (ET-1)/ET A receptor ([ET.sub.A]R) axis in tumor growth and progression is investigated in many tumor types, including ovarian carcinoma. In ovarian cancer cells, ET-1 acts as an autocrine growth factor selectively through the [ET.sub.A]R triggering the concomitant activation of multiple pathways. In these cells, the ...
Boesen, Erika - - 2010
Endothelin (ET) receptor antagonists are antihypertensive and renoprotective in angiotensin II (AngII)-induced hypertension if administered when AngII infusion commences, but their effects on established hypertension are poorly understood. We therefore tested the effects of intervening with an [ET.sub.A] (ABT-627) or [ET.sub.B] (A-192621) receptor antagonist after establishing hypertension with AngII (65 ...
Spinella, Francesca - - 2010
The molecular mechanisms involved in lymphangiogenesis were unknown until recently. We previously demonstrated that the endothelin-1 (ET-1) axis stimulates lymphatic endothelial cells (LEC) and lymphatic vessels to grow and invade. Here we further investigated the effect of ET-1 on lymphatic vessels and evaluated whether ET-1 actions result in the functional ...
Weil, Brian - - 2010
Short sleep duration is associated with increased cardiovascular disease (CVD) morbidity. Endothelial vasomotor dysfunction represents a potential mechanism contributing to the increased CVD risk associated with habitual short sleep duration. Endothelin (ET)-1 is a potent vasoconstrictor peptide that is associated with endothelial vasomotor dysfunction and increased CVD risk. Currently, there ...
Li, Weiguo - - 2010
Diabetes increases the risk of as well as poor outcome after stroke. Matrix metalloprotease (MMP) activation disrupts blood-brain barrier integrity after cerebral ischemia. We have previously shown that type 2 diabetes promotes remodeling of middle cerebral arteries (MCA) characterized by increased media/lumen (M/L) ratio and MMP activity in an endothelin ...
Kang, Julie - - 2010
Formation of a compound leaf requires the involvement of multiple factors, including KNOX1 gene expression. To further characterize simple and complex tomato leaf mutants, we analyzed their morphology and development by assessing: leaf phenotypes, primary leaf morphogenesis, expression of the class I KNOX gene LeT6, and meristematic activity of the ...
Treberg, Michael - - 2010
Density-dependent regulation in plants may occur at the level of the entire community and may differ in magnitude and direction at different life history stages such as germination, survival and growth, and under different abiotic conditions. We constructed semi-natural communities of boreal forest understory species planting 10 of the most ...
Johnson, R.C. - - 2010
Seed transfer zones ensure that germplasm selected for restoration is suitable and sustainable in diverse environments. In this study, seed zones were developed for mountain brome (Bromus carinatus Hook. & Arn.) in the Blue Mountains of northeastern Oregon and adjoining Washington. Plants from 148 Blue Mountain seed source locations were ...
Ancheta, Justin - - 2010
Halophytic plants may experience joint, and potentially interacting, effects of salinity and herbivory on their survival and reproduction. We investigated the impacts of salinity and (simulated) herbivory on fitness in the Gulf of St. Lawrence Aster (Symphyotrichum laurentianum (Fernald) Nesom; Asteraceae). In natural populations, this species experiences varying soil salinity ...
de Menezes, Ivandilson Pessoa - - 2010
Moco cotton (Gossypium hirsutum L. race marie-galante (Watt) Hutch.) is a potential source of valuable alleles for breeding programs, mainly because of its great adaptability to semi-arid conditions. With the aim of quantifying moco cotton genetic variability, 187 plants collected in the northeast of Brazil were evaluated using 12 microsatellite ...
Araki, Kiwako - - 2010
Based on 13 years of monitoring, the fates of individuals and contributions of size and age to demography through the life-history from seedling to flower were investigated in a monocarpic perennial herb, Cardiocrinum cordatum (Thunb.) Makino var. glehnii (F. Schmidt) H. Hara. Of 6155 seedlings, 5264 (85.5%) and 852 (13.8%) ...
Stecconi, Marina - - 2010
Variations in the architecture and axis structure of different growth forms of Nothofagus pumilio (Poepp. et Endl.) Krasser (Nothofagaceae) were studied along an altitudinal gradient. We evaluated the primary growth and branching pattern of annual shoots belonging to the main axis categories (trunk, main branches, and secondary (short) branches) of ...
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