Words similar to brainstem
Example sentences for: brainstem
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2. The highest density of fibers and cell bodies containing neurokinin was generally observed in the dorsal part of the human brainstem.
Thus, the anti-NKB antibody (IHC 7357) showed the following crossreactivities: 100% for NKB, 2% for physalaemin, 1% for eledoisin, 0.6% for kassinin, 0.2% for substance P, 0.1% for NKA and 0% for neuropeptide K. Moreover, in the nuclei of the human brainstem in which NKB was observed, the density of the immunoreactivity for NKB was lesser than that found in the same nuclei for NKA (see and compare Figs.
6B; 10A; 11A,11B), since the distribution of NKB is much less widespread in the human brainstem, in comparison with the distribution found for NKA(personal observation obtained after using a very specific rabbit anti-NKB antibody from Peninsula).
Our data are in agreement with previous results described in the rat brainstem, using radioimmunoassay techniques [ 29 30 ] . Thus, these latter authors found higher levels of NKA and lower levels of NKB in both the midbrain and the medulla oblongata of the rat [ 30 ] . In both regions of the human brainstem, we observed a high density of NK-ir structures.
However, for example, we found NK-ir structures (the antibody used in this study principally recognizes NKA)(see specificity of the antiserum in Methods) in the human brainstem in the lateral cuneate nucleus and in the pyramidal tract, in which no SP-ir structure has been described in humans [ 24 25 26 27 ] . It is known that both neuropeptides, SP and NKA, are derived from the same precursor.
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