نتایج جستجو برای: glomerulus
تعداد نتایج: 2389 فیلتر نتایج به سال:
We used single-sensillum recordings to characterize male Heliothis subflexa antennal olfactory receptor neuron physiology in response to compounds related to their sex pheromone. The recordings were then followed by cobalt staining in order to trace the neurons' axons to their glomerular destinations in the antennal lobe. Receptor neurons responding to the major pheromone component, (Z)-11-hexa...
It is unknown how neuronal connections are specified in the olfactory system. To define rules of connectivity in this system, we investigated whether the projection of sensory neurons from the olfactory epithelium to the olfactory bulb is topographically ordered. By backtracking with 1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI), we find that neurons projecting into a...
The interval coding hypothesis suggests that the processing that occurs, due to odor exposure, inside an olfactory bulb glomerulus work to create an interval code over the concentration range, so that different principal cells respond the strongest to different parts of that range. The goal of this project was to investigate the interval coding hypothesis with respect to function and biological...
The olfactory system permits animals to recognize and discriminate a vast number of different odorous molecules. This sensitivity is achieved by the selective expression of a single odorant receptor, specific to a small subset of the universe of odors, in each olfactory sensory neuron [1,2]. The topography of synaptic connections at the first relay in the olfactory system is organized according...
The arachidonate signaling pathways comprise prostanoids formed by cyclooxygenases, EETs, and HETEs formed by cytochrome P-450 (CYP) enzymes and HETEs and leukotrienes generated by lipoxygenases. Whereas the intrarenal localization of cyclooxygenases and of some CYP enzymes along the nephron has already been determined, the localization of lipoxygenases and leukotriene-forming enzymes together ...
Many animals depend on pheromone communication for successful mating. Sex pheromone in insects is usually released by females to attract males. In American cockroaches, the largest glomerulus (B-glomerulus) in the male antennal lobe (first-order olfactory center) processes the major component of sex pheromone. Using intracellular recordings combined with fine neuroanatomical techniques, we prov...
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