The susceptibility of Arvicanthis niloticus, Mastomys huberti, Mastomys erythroleucus and Mus musculus was studied to assess the capacity of these rodents to transmit Schistosoma mansoni. The susceptibility was determined by the percentage of adult schistosomes recovered, the number of eggs per gramme of faeces, the viability of these eggs and the capacity of the rodents to maintain the life cy...

Colorectal cancer (CRC) has a complex etiology resulting from the combination of multiple genetic and environmental factors, each with small effects. Interactions among susceptibility modifier loci make many of the loci difficult to detect in human genome-wide association studies. Previous analyses in mice have used classical inbred strains, which share large portions of their genomes due to co...

Five species of skin mites from Psorergatidae family have been found in four rodent species (Apodemus flavicollis, A. sylvaticus, Mus musculus, Myodes glareolus) coming from northern part of Poland. Three species (Psorergates microti, P. musculinus, P. simplex) appeared to be new ones for the fauna of Poland. Moreover A. sylvaticus and M. glareolus are a new hosts for P. apodemi, P. muricola, P...

Mammalian genomes are densely populated with long duplicated sequences. In this paper, we demonstrate the existence of doublets, short duplications between 25 and 100 bp, distinct from previously described repeats. Each doublet is a pair of exact matches, separated by some distance. The distribution of these intermatch distances is strikingly nonrandom. An unexpectedly high number of doublets h...

Field efficacy studies using three anticoagulant rodenticides were conducted on House mice, Mus musculus under a variety of conditions in 35 apartmental buildings scattered over four boroughs of New York metropolitan area. Percent control successes and relative efficacies of various rodenticides and their formulations were determined by recording pre and post control census for about four years...

Consomic C57BL/6 males, carrying either the Mus musculus muscu/us-derived C57BL/6 Y chromosome or the Mus musculus domesticus-derived Poschiavinus Y chromosome, were outcrossed to females of the inbred strains C3H/Bi and CXBH/By and to females of the random bred strain MFl/Ola. In a study at 12.5 days post coitum, gonads of XY and XY fetuses were assessed for the presence of testicular cords. I...

Deer mice, or Peromyscus maniculatus, are an emerging model system for use in biomedicine. P. maniculatus are similar in appearance to laboratory mice, Mus musculus, but are more closely related to hamsters than to Mus. The laboratory strains of Peromyscus have captured a high degree of the genetic variability observed in wild populations, and are more similar to the genetic variability observe...