• Enhanced arginase activity and the resultant decreases in L

  2024-08-06

  

  Enhanced arginase activity and the resultant decreases in L-arginine levels can also impair T cell mediated immune function and allow tumor growth by limiting the supply of L-arginine needed for the formation of cytotoxic levels of NO by iNOS [10]. Increased arginase expression/activity may also lim

• br Introduction Hepatocellular carcinoma HCC is an aggressiv

  2024-08-06

  

  Introduction Hepatocellular carcinoma (HCC) is an aggressive and malignant cancer detected in clinical practice, as it is the third key reason of tumor-related deaths worldwide, with > 800, 000 mortalities every year (Torre et al., 2015). Current treatments for HCC are surgical therapy, liver tra

• Several strategies have been employed

  2024-08-06

  

  Several strategies have been employed to design and engineer peptide biosensors of kinase activity, which are quite different from the strategies developed to generate genetically encoded KARs. In all cases, 4sc receptor induces changes in the spectral properties of the fluorophore(s) incorporated

• The specific functions of ERs and AR underline

  2024-08-06

  

  The specific functions of ERs and AR underline their crucial roles during different phases of spermatogenesis. Their deregulation could affect numerous downstream targets, thereby, disrupting spermatogenesis and male fertility. Various studies have shown that estrogen-like chemicals in the environme

• Introduction Alzheimer s disease AD is a complex

  2024-08-06

  

  Introduction Alzheimer's disease (AD) is a complex neurological disorder characterized by a progressive dementia resulting from synapse failure (Selkoe, 2002, Tanzi, 2005). The amyloid hypothesis maintains that the pivotal event in AD is the production of amyloid-β (Aβ) peptides following the prote

• br Materials and met http www

  2024-08-06

  

  Materials and methods Results The values for body weight are shown in Fig. 1. Body weight was measured every day. The body weight of the young mice in the control (i.e. no-stress) group was not significantly different from that of the young mice in the stress group. However, the middle-aged mi

• br Conflict of interest br Introduction Colorectal cancer CR

  2024-08-06

  

  Conflict of interest Introduction Colorectal cancer (CRC) is one of the major cause of tumor-related morbidity and mortality worldwide. Poor prognosis and consequences of its metastatic spread make CRC the second most common cause of cancer-related deaths in western countries [1]. Apart from o

• Ginsenosides are the major bioactive constituents of

  2024-08-06

  

  Ginsenosides are the major bioactive constituents of the Panax ginseng root, which contain many types of ginsenosides including Rb1, Rg1, Rc, and Rg3. The ginsenoside Rb1 appears to be the most abundant of the bioactive ginsenosides [15]. Rb1 exhibits antiinflammatory, anticarcinogenic, and antioxid

• Liaohe River situates in the

  2024-08-06

  

  Liaohe River situates in the southwestern part of Northeast China and flows through Liaoning Province. Due to the rapid urbanization and industrialization, Liaohe River has become one of the most polluted rivers in China. Multitudinous organic pollutants that can induce toxicity to organisms such as

• Since the cloning of ARs

  2024-08-06

  

  Since the cloning of ARs in the beginning of the 1990s, the efforts to characterize them have led to the accumulation of a substantial amount of experimental data. Decades of site-directed mutagenesis (SDM; Box 1) studies, in combination with pharmacological data and computational modeling, have pav

• chenodeoxycholic acid A key step in the

  2024-08-06

  

  A key step in the ADAR reaction is the formation of the adenosine covalent hydrate with a tetrahedral center at C6. The nucleoside analog 8-azanebularine (box in Fig. 6), with its relatively high propensity to form a covalent hydrate, is useful as an adenosine replacement in ADAR2 substrates to trap

• Using our infection assays we also explored

  2024-08-05

  

  Using our infection assays, we also explored whether low-pH compartments were required for the entry of ZIKVs in mammalian cells. Lysosomotropic agents such as ammonium chloride, chloroquine and Bafilomycin A1, strongly inhibited the ability of ZIKVs to enter mammalian cells. Our results are in agre

• Another important question concerns the mechanism

  2024-08-05

  

  Another important question concerns the mechanism by which a polyubiquitinated substrate is released from the Cdc48 complex and passed on to downstream components, such as the proteasome. There are at least three proposed models. In the first, a ubiquitinated substrate is transferred by ubiquitin-bi

• Crystal structures were obtained of sulfonamide and amide

  2024-08-05

  

  Crystal structures were obtained of sulfonamide 18 and amide 19 as a derivative of amide 36 (Fig. 7A and B). The precise rotameric orientation of amide 36 was of significant interest to understand the compound's interaction with the protein. As it would be difficult to assign the rotomer of 36, the

• Circulating adrenal derived stress hormones epinephrine and

  2024-08-05

  

  Circulating adrenal-derived stress hormones, epinephrine and corticosterone mediate their tissue effects through adrenergic (AR; α and β) and glucocorticoid (GR) receptors. AR are widely distributed throughout the body and although epinephrine is a prototypical agonist for all types of AR, the selec

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