Archives
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A surprising second functional effect was found in culture e
2020-10-23
A surprising second functional effect was found in culture experiments. Inclusion of LTD4 reduced the frequency of Fas receptor (CD95) expression. Once again, this effect, although modest, was reversed by a cysLT1 receptor antagonist. The biologic significance of this effect or its mechanism remaine
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In rats exposed to day of nicotine withdrawal h
2020-10-23
In rats exposed to 1 day of nicotine withdrawal (24 h after the last nicotine administration) we expected a decrease of general locomotor activity and a decrease of global striatal dopamine release, which were assessed in a previous study following 14 days of nicotine exposure and 24 h of nicotine w
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Leukotrienes themselves are implicated in the development of
2020-10-23
Leukotrienes themselves are implicated in the development of gastrointestinal ulcers, asthmas, and different inflammatory processes [18], [19]. It is noteworthy that COX isozymes and LOX share the same substrate arachidonic acid; therefore, inhibition of prostaglandins production by cyclooxygenase p
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The P H activity and
2020-10-23
The P4H activity and the large number of 4-Hyp residues that are formed, amounting to half of all the Pro residues or 10% of all residues, have been identified as having a clear role in the structure and chemistry of the triple helix [3]. The role of the rare 3-Hyp residues is less clear and is stil
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Another breakthrough towards the understanding of the mechan
2020-10-23
Another breakthrough towards the understanding of the mechanisms responsible for stress-induced relapse to drug seeking behaviour is the evidence published by the group of Wise [34] in which they show that the activation of VTA CRF2 and not CRF1 receptors is responsible for stress-mediated relapse t
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br Experimental procedures br Introduction Perfluorooctane
2020-10-23
Experimental procedures Introduction Perfluorooctane sulfonate (PFOS) is an anthropogenic compound with high thermal, chemical and biological stability, which makes it a perfect ingredient for many industrial applications (Kissa, 2001). Nevertheless, these characteristics also mean that PFOS i
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Introduction Determining how genes function together as biol
2020-10-22
Introduction Determining how genes function together as biological systems is a defining challenge of the genomic era. While genome sequences reveal the DNA blueprint of organisms, deciphering how this blueprint leads to biological function is challenging due in large part to the complexity of prot
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On the one hand levels
2020-10-22
On the one hand, levels of up to 20 nM P4 have been reported for a cyprinid species, Labeo rohita, in summer (Suresh et al., 2008). Similarly, P4 concentrations in tilapia, Oreochromis mossambicus, were found to range up to 27 nM (Cornish, 1998). Nevertheless in sturgeon P4 levels of approximately 3
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In this work we fabricated a kind of
2020-10-22
In this work, we fabricated a kind of multifunctional nanoparticles, based on HAuNS coated by chitosan-stearic APY29 copolymer (CSO-SA), which was employed frequently to form micelles for hydrophobic drug delivery in our previous work [21], [22]. The nanoparticles can encapsulate DiR efficiently, a
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An important focus of the present study has been
2020-10-22
An important focus of the present study has been the interaction of HUVECs with extracellular matrix in the regulation of angiogenesis. Matrigel is a gelatinous protein extract secreted by Engelbreth–Holm–Swarm mouse sarcoma cells, and is considered to be a good model of the extracellular matrix (Kl
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Our results showed that in elastase induced AAA TGF
2020-10-22
Our results showed that in elastase-induced AAA, TGF-β neutralization finely tunes macrophage phenotype. Note that several studies have already addressed the role of M1 markers, such as IL-6 and IL-1β, or M2 markers, including IL-10 and TGF-β.4, 9, 10, 11 The expression and the role of ARG1 in AAA h
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In order to further understand the biological
2020-10-22
In order to further understand the biological significance of cell-collagen X interactions, we have examined the possibilities of involvement of other collagen receptors in cell binding to collagen X. The present study demonstrates that collagen X is a ligand for DDR2. DDR2 has been observed to bind
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Nitrocefin Proinflammatory cytokines induce ER stress in man
2020-10-22
Proinflammatory cytokines induce ER stress in many mammalian cell systems.32, 33, 34 Our results demonstrate that these cytokines also trigger ER stress in trophoblast JEG-3 cells. However, the severity of stress is likely low grade because only the PERK-EIF2A arm of the UPRER pathway was activated.
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AZD-9291 mesylate In conclusion the results obtained in this
2020-10-22
In conclusion, the results obtained in this study and those recently reported by our group (Abdel-Samad et al., 2012) clearly indicate that a dialogue indeed exists between the systems of NPY and ET-1 at the level of human endocardial endothelial cells, since these cells, whether isolated from the r
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Additionally both in vitro and in vivo
2020-10-22
Additionally, both in vitro and in vivo studies showed that a Ca2+ influx is closely related to apoptosis (Rizzuto et al., 2003). Calmodulin (CaM) is a multifunctional intermediate calcium-binding messenger protein expressed in all eukaryotic cells, which senses intracellular calcium levels by bindi