Skip to main content

Release and inactivation of opioids in the guinea pig ileum

  • Chapter
Endorphins in Mental Health Research

Abstract

The electrically stimulated myenteric plexus-longitudinal muscle (MPLM) prepara­tion is generally recognized as a reliable and sensitive bioassay for opiates and opiate-like peptides. We have recently demonstrated the release of endorphins from this preparation (Puig et al., 1977a) by using the same MPLM strip as both the source of endorphins and the bioassay to detect their opiate-like effects. We have also established the existence of cross-tolerance between the electrically induced release of endorphins and morphine (Puig et al., 1977b). Subsequently, we have studied the general characteristics of the endorphin release by investigating differ­ent parameters of electrical stimulation as well as the effects of other procedures.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Copyright information

© 1979 The contributors

About this chapter

Cite this chapter

Musacchio, J.M., Puig, M.M., Craviso, G.L. (1979). Release and inactivation of opioids in the guinea pig ileum. In: Usdin, E., Bunney, W.E., Kline, N.S. (eds) Endorphins in Mental Health Research. Palgrave Macmillan, London. https://doi.org/10.1007/978-1-349-04015-5_19

Download citation

Publish with us

Policies and ethics