Sentence examples for by an exogenous source from inspiring English sources

Studies utilizing a co-infection model or an inducible ICP0 expression model provide contradictory evidence regarding the ability of ICP0 to block IRF3 activation by an exogenous source [35], [37].

To determine whether the induction of an IL-2 signaling cascade in CD8+ T cells was sufficient to account for the effects of CD4 help in the onset of autoimmune diabetes in InsHA mice, we sought to substitute HNT CD4+ T cells by an exogenous source of IL-2.

This notion is supported by the fact that apical dominance is maintained if an excised apex is replaced by an exogenous source of auxin.

The goal of regenerative medicine is to exploit these cells either by transplanting them from an exogenous source or by activating endogenous stem cells pharmacologically.

Also the recombination defect in SPO11 mutants can be partially rescued by production of DSBs from an exogenous source such as ionizing radiation (Loidl and Mochizuki, 2009).

Even in well-defined organisms, detected metabolites may not derive from the classical pathways, as metabolites may be imported from an exogenous source, produced biosynthetically by one or more pathways, or derived from different sources in different compartments within the same cell.

In each instance, estradiol found in the conditioned yeast culture medium originated from an exogenous source and was not synthesized by the yeast.

Neal (1997) used proxies for geographic proximity to Catholic schools as an exogenous source of variation in attendance at these high schools by estimating its effect on test scores.

These data suggest that reproductive steroid levels may have been altered by increased hepatic enzyme activity, and the presence of vitellogenic males indicates that an exogenous source of estrogen was present in the Escambia River.

By further performing the Rnr3 R-SGA screen in the presence of MMS (an exogenous source of DNA damage), we aimed to isolate genome maintenance factors that function specifically in tolerance of MMS damage.

The addition of NO3− as an exogenous source of N, the addition of labile C sources, used by heterotrophic microorganisms, and a WFPS > 60% (except for three of the present treatments) favour denitrification (Davidson, 1991).