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Physiol Behav


Title:Pheromones and novel male-induced pregnancy disruptions in mice: exposure to conspecifics is necessary for urine alone to induce an effect
Author(s):de Catanzaro D; Muir C; Sullivan C; Boissy A;
Address:"Department of Psychology, McMaster University, Hamilton, Ontario, Canada. DECATANZ@MCMASTER.CA"
Journal Title:Physiol Behav
Year:1999
Volume:66
Issue:1
Page Number:153 - 157
DOI: 10.1016/s0031-9384(98)00277-7
ISSN/ISBN:0031-9384 (Print) 0031-9384 (Linking)
Abstract:"Previous research indicates a role of pheromones in novel male-induced early pregnancy disruptions. Although some reports suggest that urine alone is sufficient to produce this effect, others raise procedural concerns and fail to replicate such effects. On Days 1 to 5 after insemination, female CF-1 mice had their nasal regions repeatedly painted with water, urine from males housed in isolation, or urine from males housed in proximity to females. Almost all (87.5%) of the control females delivered litters. There was a small nonsignificant reduction in proportion parturient (78.5%) among females exposed to urine of males housed without social contact. The proportion of females parturient (57.1%) after treatment with urine from males housed in proximity to females was significantly different from controls. The magnitude of the effect of socially stimulated male urine is substantially less than that recorded when males are housed directly above inseminated females separated by a wire-mesh grid. These data suggest that production of pregnancy-disrupting male pheromones is stimulated by contact with conspecifics"
Keywords:"Animals Behavior, Animal/*drug effects Female Housing, Animal Male Mice Mice, Inbred C57BL Mice, Inbred DBA Pheromones/*pharmacology Pregnancy Pregnancy, Animal/*drug effects/*physiology Social Environment Urine/*chemistry;"
Notes:"Medlinede Catanzaro, D Muir, C Sullivan, C Boissy, A eng Research Support, Non-U.S. Gov't 1999/05/01 Physiol Behav. 1999 Mar; 66(1):153-7. doi: 10.1016/s0031-9384(98)00277-7"

 
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