Abstract:
:The regulation of female reproductive behaviors may involve memories of male pheromone signatures, formed in part by neural circuitry involving the olfactory bulb and hippocampus. These neural structures are the principal sites of adult neurogenesis; however, previous studies point to their independent regulation by sensory and physiological stimuli. Here we report that the pheromones of dominant (but not subordinate) males stimulate neuronal production in both the olfactory bulb and hippocampus of female mice, which are independently mediated by prolactin and luteinizing hormone, respectively. Neurogenesis induced by dominant-male pheromones correlates with a female preference for dominant males over subordinate males, whereas blocking neurogenesis with the mitotic inhibitor cytosine arabinoside eliminated this preference. These results suggest that male pheromones are involved in regulating neurogenesis in both the olfactory bulb and hippocampus, which may be important for female reproductive success.
journal_name
Nat Neuroscijournal_title
Nature neuroscienceauthors
Mak GK,Enwere EK,Gregg C,Pakarainen T,Poutanen M,Huhtaniemi I,Weiss Sdoi
10.1038/nn1928subject
Has Abstractpub_date
2007-08-01 00:00:00pages
1003-11issue
8eissn
1097-6256issn
1546-1726pii
nn1928journal_volume
10pub_type
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