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available br Author Contributions br Funding Canadian Instit
2020-11-27
Author Contributions Funding Canadian Institutes of Health Research, operating grant NMD-83126 and the internal funding from the National Research Council Canada, Charlottetown, PE, Canada. Disclosure Statement Acknowledgements Introduction Cholesterol is an essential structural comp
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Chk and Chk are functionally redundant protein kinases
2020-11-27
Chk1 and Chk2 are functionally redundant protein kinases that respond to checkpoint signals emanating from the phosphatidylinositol 3-kinase family members ATM (ataxia-telangiectasia mutated) and ATR (Ataxia-telangiectasia and Rad-3 related). A concerted research effort has revealed many mechanistic
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The underlying mechanisms of how progesterone
2020-11-27
The underlying mechanisms of how progesterone prolongs pregnancy, although not completely understood, are thought to have to do with reduction in uterine contractility, antimicrobial protein up-regulation, immunosuppression, and inflammatory inhibition. Specific to preterm PROM, progesterone has bee
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As expected the nortestosterone derived
2020-11-27
As expected, the 19-nortestosterone-derived progestins tested were moderate agonists of hAR (C), with EC50s ranging from 2 to 10nM, however all were less potent than the endogenous ligand DHT by at least a factor of 6, with relative potencies ranging from 0.0301 to 0.164. This is in agreement with p
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Oxidative stress is associated with
2020-11-27
Oxidative stress is associated with elevated levels of intracellular reactive oxygen species (ROS) generation which then causes DNA damage and the death of cells (Miyata et al., 2017). Generation of ROS affects main signaling pathways in cells associated with tumorigenesis: mitogen activated protein
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In rodent models the loss
2020-11-27
In rodent models, the loss of estrogens through ovariectomy has been shown to promote the development of intracranial aneurysms. Conversely, the administration of an fty receptor beta agonist restores its protective effect, but is abolished with the introduction of a nitric oxide synthase inhibitor
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br Pathophysiology of premature ovarian failure By the
2020-11-27
Pathophysiology of premature ovarian failure By the age of 40 years, 1% of women spontaneously develop POF [18]. The normal menopause occurs at an average age of 51 years [19] and results from ovarian follicle depletion [20], whereas POF is a heterogeneous disorder and can result from either foll
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In summary we have identified a series of
2020-11-27
In summary, we have identified a series of amides as ERRγ agonists with suitable potency for further development. Our SAR studies of this chemotype identified SR19881 as the most potent full agonist of ERRγ with an EC=0.39 μM in a binding assay and an EC=4.7 μM in a cell-based assay. SR19881 was als
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Increased leukocyte trafficking and infiltration of the vasc
2020-11-27
Increased leukocyte trafficking and infiltration of the vascular wall are thought to provide a key stimulus for SMC activation and subsequent neointima formation in response to vascular injury [19], [20]. The essential trigger regulating the accumulation of leukocytes in the vessel wall is the upreg
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It is without doubt that
2020-11-27
It is without doubt that the vagina plays a significant role in the perception of coital stimulation leading to sexual arousal and, finally, orgasm. In response to sensory stimulation, relaxation of vaginal vascular and nonvascular smooth muscle occurs, resulting in an increase in local blood flow a
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High concentrations of kC may also arise
2020-11-27
High concentrations of 7kC may also arise from dietary intake of processed cholesterol-rich food, likely favoring or worsening inflammatory bowel disease (IBD) [5,13]. Furthermore, IBD has been associated with a dysregulation of colonic 11β-HSD expression, exhibiting increased 11β-HSD1 and decreased
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Intriguingly one E residue may serve as a molecular gate
2020-11-27
Intriguingly, one E2 residue may serve as a molecular ‘gate’ to allow the C-terminus of ubiquitin to access the closed E2~Ub conformations favorable for ubiquitin transfer. This residue, Asp87 in UbcH5 family members, resides on one side of the opening that leads to the active site Cys (Fig. 4D). In
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Many studies have found that
2020-11-27
Many studies have found that there is an aberrant DNA methylation in the imprinting control region of development-related genes in the spermatozoa of oligozoospermic men (Kobayashi et al, 2007, Marques et al, 2004, Marques et al, 2008), which most likely results from expressional changes in the DNMT
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br Phenotypic responses alkylation induced cell death and mu
2020-11-27
Phenotypic responses: alkylation-induced cell death and mutagenesis E. coli alkB mutants were isolated in a screen for strains specifically sensitive to the cytotoxicity of MMS but not UV-irradiation. This was the first indication that the AlkB protein is a primary cellular defence against alkyla
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STRING protein interactions were used to highlight enzymes
2020-11-26
STRING protein interactions were used to highlight enzymes directly associated with DHODH (Fig. 10) (Szklarczyk et al., 2015). The reported protein-protein associations are primarily within the de novo nucleotide synthesis pathways (CAD, carbamoyl phosphate synthetase 1, uridine monophosphate synthe
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