Timothy J. Muris is a former Chairman, Federal Trade Commission, and presently a Foundation Professor of Law, George Mason University, and of Counsel, O’Melveny & Myers, LLP. Bilal Sayyed is a Counsel at O’Melveny & Myers, LLP. This article revises the comment of Timothy J. Muris and Bilal Sayyed, Three Key Principles for Revising the Horizontal Merger Guidelines, Submitted to the Federal Trade...

Intestinal dwelling parasites have evolved closely with the complex intestinal microbiota of their host, but the significance of the host microbiota for metazoan pathogens and the role of their own intestinal microbiota are still not fully known. We have found that the parasitic nematode Trichuris muris acquired a distinct intestinal microbiota from its host, which was required for nematode fit...

Corticosteroid therapy is known to be hazardous in patients with occult infection but the mechanism by which the host parasite relationship is altered by steroids is not known. We have used an intestinal protozoal parasite, Giardia muris, to examine the effects of corticosteroids on the number of parasites in the intestine in the course of a primary infection. A single injection of cortisone ac...

In previous work (1), the authors have demonstrated that minute splenic autoplastic transplants made 7 weeks prior to splenectomy protect a large percentage of splenectomized rats against Bartonella muris anemia. A comparative histological study of the transplants of protected and unprotected rats revealed a regeneration of the pulp cells in the protected rats, and an exhaustion destruction of ...

To reinvestigate the taxonomy of [Actinobacillus] muris, 474 strains, mainly from mice and rats, were characterized by phenotype and 130 strains selected for genotypic characterization by 16S rRNA and partial rpoB gene sequencing. The type strain was further investigated by whole-genome sequencing. Phylogenetic analysis of the DNA sequences showed one monophyletic group with intragroup similari...

Mycoplasma are the smallest free–living organisms which can grow on artificial media. Although some Mycoplasma are normal commensals, others are proven pathogens of respiratory and urogenital tracts.In this survey, 221 collected samples of 121 patients with urogenital infections (54.7%) and 100 patients with respiratory infections (45.3%) were examined. These patients were either referred to or...

Incidences of infection-related cancers are on the rise in developing countries where the prevalence of intestinal nematode worm infections are also high. Trichuris muris (T. muris) is a murine gut-dwelling nematode that is the direct model for human T. trichiura, one of the major soil-transmitted helminth infections of humans. In order to assess whether chronic infection with T. muris does ind...

It is well established that homeostasis of the intestinal epithelium becomes dysregulated during gastrointestinal helminth infection and is under immune control. An increase in both enterocyte proliferation and the subsequent generation of crypt hyperplasia are hallmarks of chronic infection with Trichuris muris, a large intestinal dwelling nematode. The effect of this parasitic infection on ap...

INTRODUCTION Suppressor of cytokine signaling 3 (SOCS3) is a tumour suppressor, limiting intestinal epithelial cell (IEC) proliferation in acute inflammation, and tumour growth, but little is known regarding its role in mucosal homeostasis. Resistance to the intestinal helminth Trichuris muris relies on an "epithelial escalator" to expel the parasite. IEC turnover is restricted by parasite-indu...