Naloxone activation of μ-opioid receptors mutated at a histidine residue lining the opioid binding cavity

CE Spivak, CL Beglan, BK Seidleck, LD Hirshbein… - Molecular …, 1997 - ASPET
The μ-opioid receptor is the principal site of action in the brain by which morphine, other
opiate drugs of abuse, and endogenous opioid peptides effect analgesia and alter mood. A …

Fluorescein-labeled naloxone binding to mu opioid receptors on live Chinese hamster ovary cells using confocal fluorescent microscopy

BW Madsen, CL Beglan, CE Spivak - Journal of neuroscience methods, 2000 - Elsevier
A general method of confocal laser scanning microscopy was used to demonstrate specific
binding of fluorescein-labeled naloxone (FNAL, 10–50 nM) to stably transfected mu opioid …

Co-treatment with MK-801 potentiates naloxone-predpitated morphine withdrawal in the isolated spinal cord of the neonatal rat

JA Bell, CL Beglan - European journal of pharmacology, 1995 - Elsevier
The effects of acute and chronic administration of (MK-801; [(+)-5-methyl-10,11-dihydro-5H-dibenzo[a,d]cyclo-hepten-5,10-imine
hydrogen maleate) were assessed on morphine …

Diffusion delays and unstirred layer effects at monolayer cultures of Chinese hamster ovary cells: radioligand binding, confocal microscopy, and mathematical …

CE Spivak, M Oz, CL Beglan, RI Shrager - Cell biochemistry and …, 2006 - Springer
Cells grown in monolayer culture offer a convenient system for binding and other experiments
under conditions that preserve the complexity of the living state. Kinetics experiments, …

Interaction of ascorbic acid with the neurotoxic effects of NMDA and sodium nitroprusside

JA Bell, CL Beglan, ED London - Life sciences, 1995 - Elsevier
We have previously shown that ascorbic acid (AA) protects cortical neurons in culture from
the toxic effects of NMDA. In the present study, we examined the interactions of AA with …

MK-801 blocks the expression but not the development of tolerance to morphine in the isolated spinal cord of the neonatal rat

JA Bell, CL Beglan - European journal of pharmacology, 1995 - Elsevier
This study investigated the role of (MK-801; [(+)-5-methyl-10,11-dihydro-5H-dibenzo[a, d]-cyclo-hepten-5,10-imine
hydrogen maleate) in the development and expression of tolerance to …

β‐Funaltrexamine, a gauge for the recognition site of wildtype and mutant H297Q μ‐opioid receptors

CE Spivak, CL Beglan, C Zöllner, CK Surratt - Synapse, 2003 - Wiley Online Library
The antagonist β‐funaltrexamine (β‐FNA), known to bind covalently to μ‐opioid receptors
by a two‐step, doubly discriminating sequence, was used as a sensitive gauge to compare …

Kinetics of recovery from opioids at wild‐type and mutant μ opioid receptors expressed in Xenopus oocytes

CE Spivak, CL Beglan - Synapse, 2000 - Wiley Online Library
To investigate a previous observation that classical antagonists behave as agonists at mutant
H297N and H297Q μ opioid receptors, we compared the kinetics of recovery from opioids …

Kinetics of β‐funaltrexamine binding to wild‐type and mutant μ‐opioid receptors expressed in Chinese hamster ovary cells

CE Spivak, CL Beglan - Synapse, 2004 - Wiley Online Library
The two‐stage reaction whereby the antagonist β‐funaltrexamine (β‐FNA) binds covalently
to μ opioid receptors makes it a highly discriminating probe into the tertiary structure of the …

Working with Women in Probation:'Will You, Won't You, Will You, Won't You, Won't You Join the Dance?'

L Gelsthorpe - What Works in Offender Compliance: International …, 2013 - Springer
This chapter addresses a number of issues pertaining to the supervision of female offenders
and ‘compliance’, looking in particular at evidence on gendered aspects of work with …