Words similar to triggers
Example sentences for: triggers
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SAM domain oligomerization is the key event that triggers a variety of leukemias [ 21 ] and is therefore an attractive target for therapeutic intervention.
It has been reported before that an increased excretion of orotate in sick children may not be uncommon and that a positive allopurinol load test may indicate unrecognized mitochondrial disease, making orotic acid as a potential marker of mitochondrial dysfunction [ 35 ] . A potential link between mitochondrial cytopathies and urea cycle dysfunction has also been suggested by the findings of hypocitrullinemia in patients with neurogenic weakness, ataxia and retinitis pigmentosa (NARP) syndrome (Mendelian Inheritance in Man database *551500) caused by a T8993G mutation in mtDNA that triggers ATPase deficiency [ 36 37 ] . It was hypothesized that the NARP mutation would cause complex V deficiency in the small intestine as well, thus reducing the availability of mitochondrial ATP required for citrulline synthesis.
Cellulose acetate phthalate (CAP) is a promising microbicide candidate for prevention of infection by sexually transmitted disease (STD) pathogens, including HIV-1 [ 1 2 3 4 5 6 7 ] . CAP inactivates HIV-1 and blocks the coreceptor binding site on the virus envelope glycoprotein gp120, while leaving the site for the primary cellular receptor CD4 accessible [ 8 9 ] Soluble CD4 (sCD4) was shown to inhibit HIV-1 infection by two mechanisms: reversible blockage of virus binding to receptors, and irreversible inactivation of virus infectivity [ 10 ] . Since CAP and sCD4 bind to distinct domains on the HIV-1 envelope, it was of interest to determine whether or not these two ligands affect virus infectivity synergistically as do other combinations of anti-HIV-1 drugs and sCD4 [ 11 12 ] Binding of sCD4 leads to conformational changes in gp120 [ 13 14 15 16 17 ] . Binding of gp120 to coreceptors CXCR4 and CCR5, respectively, triggers additional conformational changes in HIV-1 envelope glycoproteins [ 18 19 ] For these reasons it was of interest to determine whether a) pretreatment of HIV-1 with sCD4 would affect subsequent binding of CAP to virus particles, and b) CAP binding to virus particles in the presence or absence of sCD4 would elicit conformational changes which could affect HIV-1 infectivity.
In 1998, an internal EPA Toxicology Working Group concluded that these triggers may not be sufficient to identify all chemicals that have the potential to produce DNT [75].
The results from RT-PCR (showing a relatively high TNF-α mRNA expression levels in untreated cells which is only slightly increased by LPS treatment) along with the immunoassay results suggest that TNF-α mRNA is constantly present in these cells, but is not translated into protein until certain triggers are provided.
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