• Adenosine is a ubiquitous homeostatic purine nucleoside that

  2024-07-24

  

  Adenosine is a ubiquitous homeostatic purine nucleoside that accumulates extracellularly in response to metabolic stresses such as hypoxia and inflammation. Activation of either G protein-coupled adenosine receptors (ARs; A1R, A2AR, A2BR, and A3R) by extracellular adenosine can modulate cell signali

• Despite these efforts to prevent

  2024-07-24

  

  Despite these efforts to prevent oxidative metabolic degradation, and showed only marginal improvements in metabolic stability and still exhibited high plasma clearances as shown in . High molecular weight as well as relative high log values could be contributing factors to the poor PK profiles of

• To date the modes of actions of pharmaceuticals in humans

  2024-07-24

  

  To date, the modes of actions of pharmaceuticals in humans and mammals are well-known (Fent et al., 2006), whereas knowledge of aquatic organisms, particularly invertebrates, is limited. This is problematic as these contaminants/pollutants have potentially harmful effects on wildlife organisms that

• Based on the observation that

  2024-07-24

  

  Based on the observation that antipsychotic drugs increase 5-HT1A–D2 heteromerization level (Łukasiewicz et al., 2016), we set out to compare the effect of paroxetine to that of risperidone. Paroxetine, a potent SSRI, is very effective in the treatment of depression and anxiety disorders, e.g., gene

• Several dehidropregnenolone derivatives functionalized at C

  2024-07-24

  

  Several 16-dehidropregnenolone derivatives functionalized at C3, C4, C5 and C6 (Fig. 7) were prepared and evaluated as 5α-reductase inhibitors bearing in mind that after the formation of an enzyme-steroid complex a nucleophilic portion of the enzyme attacks the double bond of the steroid through Mic

• br Results br Discussion Although they do not

  2024-07-24

  

  Results Discussion Although they do not have protein-coding capacity, lncRNAs make up a large part of the transcripts of the genome, and they play fundamental roles in carcinogenesis and osteosarcoma progression through regulation of tumor proliferation and metastasis. These lncRNAs include MA

• Aurora A overexpression is also related to the

  2024-07-24

  

  Aurora-A overexpression is also related to the activation of NF-κB, a potent anti-apoptotic effector that may play a role in preventing apoptosis in cancer 74 [18]. These data show that we are still at the beginning of unraveling the complex mechanism by which these gene products and proteins inte

• The activity of an enzyme may be regulated allosterically as

  2024-07-24

  

  The activity of an enzyme may be regulated allosterically as well as transcriptionally. We have consistently studied REMS deprivation (REMSD) associated NA mediated allosteric regulation of Na-K ATPase activity in neurons and glia in vivo and in vitro (Amar and Mallick, 2015; Amar et al., 2016; Bask

• Regulators of the DDR have therefore become attractive targe

  2024-07-24

  

  Regulators of the DDR have therefore become attractive targets for cancer therapy primarily through two potential approaches. First, to be used as chemo- or radiosensitisers to increase the effectiveness of standard genotoxic treatments and to help prevent or overcome the development of resistance.

• br ASK in multiple sclerosis and optic neuritis Multiple

  2024-07-24

  

  ASK1 in multiple sclerosis and optic neuritis Multiple sclerosis (MS), a chronic inflammatory demyelinating disease of the central nervous system (CNS), is the most common neurological disease among young adults in the United States and Europe (Dutta and Trapp, 2011). Although MS primarily affect

• Based on its kinetic parameters and

  2024-07-24

  

  Based on its kinetic parameters and quaternary structure, R. pycnus arginase is a typical ureotelic L-arginase [2]. The Km value of the enzyme was lower than other arginases from other organisms (Table 2), including S. cerevisiae (15.7mM), B. anthracis (10mM), B. caldovelox (3.4mM), human liver (2.3

• Although the role of apelin

  2024-07-23

  

  Although the role of apelin and APJ receptor in cardiovascular functions has been well-elucidated, little is known for the effect of the central apelinergic system on gastrointestinal (GI) functions. In mice, it has been found previously that central exogenous apelin-13 decreased gastric emptying (G

• br Conclusion We present here the

  2024-07-23

  

  Conclusion We present here the first comprehensive analysis of B-Raf-induced transcriptional activation in insulinoma cells. The B-Raf-induced signaling cascade targets the c-Fos and the c-Jun genes. Both gene products are constituents of the AP-1 transcription factor. The phosphatases MKP-1 and

• In addition to peroxyl radicals the most

  2024-07-23

  

  In addition to peroxyl radicals, the most found radical forms in biological systems, some of assays took into account other free radicals such as superoxide anion, hydroxyl, hydrogen peroxide, singlet oxygen and peroxynitrite. ORAC procedure was also modified using different radical sources such as

• AMP activated protein kinase AMPK is composed of

  2024-07-23

  

  AMP-activated protein kinase (AMPK) is composed of α-, β-, and γ-subunits [17,18]. Phosphorylation of α-subunit at Thr-172 residue is essential for AMPK activation [17,18]. The serine/threonine kinase coordinates metabolic pathways in response to energy supply and demand [17,18]. Studies have shown

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