PMID- 16806123
OWN - NLM
STAT- MEDLINE
DCOM- 20060919
LR  - 20061115
IS  - 0006-8993 (Print)
IS  - 0006-8993 (Linking)
VI  - 1102
IP  - 1
DP  - 2006 Aug 2
TI  - Sexual dimorphism in the vomeronasal system of the rabbit.
PG  - 52-62
AB  - Studies have shown that the vomeronasal system (VNS), an olfactory neural network 
      that participates in the control of reproductive physiology and behavior, is 
      sexually dimorphic in the rat. These works have also shown two main 
      characteristics of brain sexual dimorphism: (a) dimorphism appears in neural 
      networks related to reproduction and (b) it can present two morphological 
      patterns: one in which males present greater morphological measures than females 
      (male > female) and another in which the opposite is true (female > male). The 
      present work extends the hypothesis to the rabbit, as a representative species of 
      Lagomorpha. In addition, the locus coeruleus (LC), which is known to send rich 
      noradrenergic projections to VNS structures, was also studied. Sex differences 
      were found in: (a) the number of mitral, and dark and light granule cells (female 
      > male) of the accessory olfactory bulb (AOB); (b) the medial amygdala (Me) and 
      its dorsal (Med) and ventral (Mev) subdivisions, males showing greater values 
      than females in volume and number of neurons, while in the posteromedial cortical 
      amygdala (PMCo or C(3)), females show greater density of neurons than males and 
      (c) the posteromedial division of the bed nucleus of the stria terminalis (BSTMP) 
      in which males have more neurons than females. No sex differences were seen in 
      the bed nucleus of the accessory olfactory tract (BAOT) and the LC. These results 
      evidence that, as it was observed in rodents, sex differences are also seen in 
      the VNS of Lagomorpha and that these sex differences present the two 
      morphological patterns seen in Rodentia. Differences between orders are discussed 
      with respect to the species-specific physiological and behavioral peculiarities.
FAU - Segovia, Santiago
AU  - Segovia S
AD  - Departamento de Psicobiologia, UNED, c/ Juan del Rosal, Madrid, Spain.
FAU - Garcia-Falgueras, Alicia
AU  - Garcia-Falgueras A
FAU - Carrillo, Beatriz
AU  - Carrillo B
FAU - Collado, Paloma
AU  - Collado P
FAU - Pinos, Helena
AU  - Pinos H
FAU - Perez-Laso, Carmen
AU  - Perez-Laso C
FAU - Vinader-Caerols, Concepcion
AU  - Vinader-Caerols C
FAU - Beyer, Carlos
AU  - Beyer C
FAU - Guillamon, Antonio
AU  - Guillamon A
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20060627
PL  - Netherlands
TA  - Brain Res
JT  - Brain research
JID - 0045503
SB  - IM
MH  - Animals
MH  - Cell Count
MH  - Female
MH  - Male
MH  - Nerve Net/cytology/*physiology
MH  - Neurons/physiology
MH  - Olfactory Pathways/cytology/*physiology
MH  - Rabbits
MH  - *Sex Characteristics
MH  - Statistics, Nonparametric
MH  - Vomeronasal Organ/cytology/*physiology
EDAT- 2006/06/30 09:00
MHDA- 2006/09/20 09:00
CRDT- 2006/06/30 09:00
PHST- 2006/03/07 00:00 [received]
PHST- 2006/04/26 00:00 [revised]
PHST- 2006/05/01 00:00 [accepted]
PHST- 2006/06/30 09:00 [pubmed]
PHST- 2006/09/20 09:00 [medline]
PHST- 2006/06/30 09:00 [entrez]
AID - S0006-8993(06)01326-6 [pii]
AID - 10.1016/j.brainres.2006.05.017 [doi]
PST - ppublish
SO  - Brain Res. 2006 Aug 2;1102(1):52-62. doi: 10.1016/j.brainres.2006.05.017. Epub 
      2006 Jun 27.