Mark L. Roberts

TL;DR: A meta-analysis found a significant suppressive effect of testosterone on immunity, in support of the hypothesis, but this effect disappeared when the authors controlled for multiple studies on the same species, and a funnel analysis indicated that the results were robust to a publication bias.

TL;DR: A nontoxic mutant (LTK7) of the Escherichia coli heat-labile enterotoxin lacking ADP-ribosylating activity but retaining holotoxin formation was constructed by using site-directed mutagenesis and was able to bind to eukaryotic cells and acted as a mucosal adjuvant for co-administered proteins.

TL;DR: The results highlight the fact that the mechanisms that underlie variation in the avian physiological system can be modified to respond to differences between environments through selection, which adds an additional level of flexibility to the bird physiological system, which will allow it to responded to environmental circumstances.

TL;DR: It is concluded that the ompR-envZ two component regulatory system plays an important role in the regulation of Vi polysaccharide synthesis in S. typhi and that one of the environmental signals for this regulation may be osmolarity.

TL;DR: It is shown that lines of animals selected for endocrine hormonal responses differ in their "coping" styles or "personalities", and higher levels of circulating corticosterone following a mild stress result in greater exploratory behavior and greater risk taking.