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Neurons containing beta-endorphin in rat brain exist separately from those containing enkephalin: immunocytochemical studies.

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Bloom, F, Battenberg, E, Rossier, J, Ling, N, Guillemin, R·1978·Proceedings of the National Academy of Sciences

Abstract

Well-characterized antisera to porcine beta-endorphin were used to localize immunoreactive sites in cryostat sections of formaldehyde-fixed rat brain by indirect immunohistochemistry. Specificity was established by absorption of immune sera with synthetic peptide fragments. Specific immunoreactivity was localized to neuronal perikarya in the basal tuberal hypothalamus, and to varicose nerve fibers which were distributed to midline nuclear areas throughout the diencephalon and anterior pons. These patterns of reactivity were unaffected by preabsorption of the immune sera with millimolar concentrations of Met5- or Leu5-enkephalin or alpha-endorphin. The beta-endorphin immunoreactive structures were morphologically separate from those cells and fibers reported to react with antisera to the enkephalins. One anti-beta-endorphin serum gave additional immunoreactivity with myelinated axons in limbic cortical zones; when absorbed with purified rat myelin basic protein, only the specific patterns of immunoreactivity remained. Thus, discrete beta-endorphin-containing neuronal circuits exist in rat brain and are anatomically distinguishable from enkephalin-containing nerve cell and fiber pathways.

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Metadata

Authors
Bloom, F., Battenberg, E., Rossier, J., Ling, N., & Guillemin, R.
Venue
Proceedings of the National Academy of Sciences
Published
1978-03
Volume
75
Issue
3
Pages
1591-1595
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2039946713
Cited by
653
References
0
FWCI
24.14
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Neurons containing beta-endorphin in rat brain exist separately from those containing enkephalin: immunocytochemical studies. https://app.cochat.ai/papers/10.1073/pnas.75.3.1591
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Bloom, F., Battenberg, E., Rossier, J., Ling, N., & Guillemin, R. (1978). Neurons containing beta-endorphin in rat brain exist separately from those containing enkephalin: immunocytochemical studies. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.75.3.1591

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.