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Brain Res. 1990 Sep 3;526(2):333-7.

Somatostatin-28-like immunoreactivity in the rat olfactory bulb.

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Department of Biological Science, Florida State University, Talahassee 32306.


Using an immunoperoxidase technique, somatostatin-28-like immunoreactive (LIR) neurons were observed in the main and accessory olfactory bulb (MOB and AOB) of adult rats. In the MOB, a restricted population of periglomerular cells in the glomerular layer, some superficial short-axon cells in the juxtaglomerular layer, and some deep short-axon cells in the granule cell layer were IR. The periglomerular and the superficial short-axon cells were stained so well that they looked like Golgi-impregnated specimens. In the AOB, a very small population of small neurons in the glomerular layer, a very few medium-sized and large neurons in the external plexiform layer, and some neurons in the granule cell layer, which seem to be corresponding to the deep short-axon cells in the MOB, were IR. The present results have revealed that different morphological types of bulbar neurons are somatostatin-28-LIR; they also indicate neurochemical differences between the MOB and AOB.

[Indexed for MEDLINE]

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