The mammalian accessory olfactory system is specialized for the detection of chemicals that identify kin and conspecifics. Vomeronasal sensory neurons (VSNs) residing in the vomeronasal organ project axons to the accessory olfactory bulb (AOB), where they form synapses with principal neurons known as mitral cells. The organization of this projection is quite precise and is believed to be essent...

We introduce a hypothesis which presumes that damage to the vomeronasal organ during a Le Fort I osteotomy of the maxilla for the purpose of orthognathic surgical treatment of congenital or acquired jaw deformities affects the patient's social life in terms of the selection of mates and establishment of relationships. The vomeronasal organ is chemosensory for pheromones, and thus registers unco...

In the olfactory bulb of adult rodents, local interneurons are constantly replaced by immature precursors derived from the subventricular zone. Whether any olfactory sensory process specifically relies on this cell renewal remains largely unclear. By using the well known model of mating-induced imprinting to avoid pregnancy block, which requires accessory olfactory bulb (AOB) function, we demon...

Female-emitted pheromonal inputs possess an intrinsic rewarding value for conspecific males, promoting approach and investigation of the potential mating partner. In mice these inputs are detected mainly by the vomeronasal organ (VNO) and the main olfactory epithelium (MOE). We investigated the role of VNO-mediated inputs in experience-dependent plasticity of reproductive responses. We applied ...

Illuminating the molecular identity and regulation of early progenitor cells in the olfactory sensory epithelium represents an important challenge in the field of neural development. We show in both mouse and zebrafish that the winged helix transcription factor Foxg1 is expressed in an early progenitor population of the olfactory placode. In the mouse, Foxg1 is first expressed throughout the ol...

BACKGROUND Burkholderia pseudomallei, the causative agent of melioidosis, is generally considered to be acquired via inhalation of dust or water droplets from the environment. In this study, we show that infection of the nasal mucosa is potentially an important portal of entry in melioidosis. METHODS After intranasal inoculation of mice, infection was monitored by bioluminescence imaging and ...

Male South Indian gerbils (T. indica cuvieri), both adults and weanlings, were olfactory bulbectomized (OBX) and changes in male reproductive behaviour were assessed. Consequent to OBX, majority of the adult males failed to ejaculate, and courtship behaviour has also been considerably reduced. All OBX weanlings were rendered incapable of ejaculation. However, maturational parameters, and organ ...

Effect of exposure to constant light (CL), blinding and olfactory bulbectomy (OBX) on reproduction of adult and weanling female Tatera indica cuvieri was investigated. In adult females, CL induced changes in estrus cyclicity. Weanlings subjected to CL showed reduced ovarian weight. Blinding did not bring about changes in estrus cyclicity and reproductive organ weight (ovary and uterus) of eithe...

it is not known whether the instincts of wild horses have remained strong during their centuries of domestication. knowledge of this matter would give riders the opportunity to know more about the behavior of horses and consequently about safety for both horses and riders. in this current research, we studied the behavior of fifteen caspian miniature horses of different ages and sexes using sti...

in order to examine the effect of the quantity of nitrogen fertilizer and bush density on vegetative and productive function of henna medicinal plant (lawsonia inermis)  factorial experimentation in the form of block plan was carried in three stages in agriculture research center in south of kerman  province in corp of 2012. the first factor containing nitrogen fertilizer in 4 levels including ...