1. Special issue dedicated to Dr. Eric J. Simon

   Announcement 21 March 2013 Pages: 1271 - 1271

2. Special issue dedicated to Dr. Eric J. Simon

   • Huda Akil

   Foreword 21 March 2013 Pages: 1273 - 1275

3. Functional analysis of cloned opioid receptors in transfected cell lines

   • Elemer T. Piros
   • Tim G. Hales
   • Chris J. Evans

   Stimulatory Effects of Opioids 21 March 2013 Pages: 1277 - 1285

4. Application of the message-address concept to the docking of naltrexone and selective naltrexone-derived opioid antagonists into opioid receptor models

   • Thomas G. Metzger
   • M. Germana Paterlini
   • David M. Ferguson

   Stimulatory Effects of Opioids 21 March 2013 Pages: 1287 - 1294

5. Sensitivity of opioid receptor binding to N-substituted maleimides and methanethiosulfonate derivatives

   • M. S. Shahrestanifar
   • R. D. Howells

   Stimulatory Effects of Opioids 21 March 2013 Pages: 1295 - 1299

6. [³⁵S]GTPγS binding: A tool to evaluate functional activity of a cloned opioid receptor transiently expressed in COS cells

   • Katia Befort
   • Lina Tabbara
   • Brigitte L. Kieffer

   Stimulatory Effects of Opioids 21 March 2013 Pages: 1301 - 1307

7. Sigma₁ binding in a human neuroblastoma cell line

   • Jennifer Ryan-Moro
   • Chih-Cheng Chien
   • Gavril W. Pasternak

   Stimulatory Effects of Opioids 21 March 2013 Pages: 1309 - 1314

8. μ Opiate receptor immunoreactivity in rat central nervous system

   • Akiyoshi Moriwaki
   • Jia-Bei Wang
   • George R. Uhl

   Anatomy of Opioid Receptors 21 March 2013 Pages: 1315 - 1331

9. Laminar distribution of the multiple opioid receptors in the human cerebral cortex

   • Jacob M. Hiller
   • Li-Qun Fan

   Anatomy of Opioid Receptors 21 March 2013 Pages: 1333 - 1345

10. Modulatory effects of Gs-coupled excitatory opioid receptor functions on opioid analgesia, tolerance, and dependence

    • Stanley M. Crain
    • Ke-Fei Shen

    Simulatory EfFects of Opioids 21 March 2013 Pages: 1347 - 1351

11. Stimulatory effects of opioids on transmitter release and possible cellular mechanisms: Overview and original results

    • Yosef Sarne
    • Anat Fields
    • Mikhal Gafni

    Simulatory EfFects of Opioids 21 March 2013 Pages: 1353 - 1361

12. Use of a μ-antisense oligodeoxynucleotide as a μ opioid receptor noncompetitive antagonist in vivo

    • Xiao-Hong Chen
    • Lee-Yuan Liu-Chen
    • Martin W. Adler

    Physiology and Behavior 21 March 2013 Pages: 1363 - 1368

13. Cyclazocine revisited

    • Sydney Archer
    • Stanley D. Glick
    • Jean M. Bidlack

    Physiology and Behavior 21 March 2013 Pages: 1369 - 1373

14. Effects of opioids on the immune system

    • Sabita Roy
    • Horace H. Loh

    Physiology and Behavior 21 March 2013 Pages: 1375 - 1386

15. Rats rapidly develop tolerance to the locomotor-inhibiting effects of the novel neuropeptide orphanin FQ

    • Darragh P. Devine
    • Larry Taylor
    • Huda Akil

    Physiology and Behavior 21 March 2013 Pages: 1387 - 1396

16. Association of enkephalin catabolism inhibitors and CCKB antagonists: A potential use in the management of pain and opioid addiction

    • Bernard P. Roques
    • Florence Noble

    Physiology and Behavior 21 March 2013 Pages: 1397 - 1410

17. Mu opioid receptor mRNA in nucleus accumbens is elevated following dopamine receptor activation

    • Anahit V. Azaryan
    • Barbara J. Clock
    • Brain M. Cox

    Reward/Drug Abuse Mechanisms 21 March 2013 Pages: 1411 - 1415

18. Morphine-induced increase in D-1 receptor regulated signal transduction in rat striatal neurons and its facilitation by glucocorticoid receptor activation: Possible role in behavioral sensitization

    • Anton N. M. Schoffelmeer
    • Pieter Voorn
    • Guno H. K. Tjon

    Reward/Drug Abuse Mechanisms 21 March 2013 Pages: 1417 - 1423

19. Psychomotor stimulant- and opiate-induced c-fos mRNA expression patterns in the rat forebrain: Comparisons between acute drug treatment and a drug challenge in sensitized animals

    • Eileen J. Curran
    • Huda Akit
    • Stanley J. Watson

    Reward/Drug Abuse Mechanisms 21 March 2013 Pages: 1425 - 1435

20. Reinforcement processes in opiate addiction: A homeostatic model

    • Gery Schulteis
    • George F. Koob

    Reward/Drug Abuse Mechanisms 21 March 2013 Pages: 1437 - 1454

21. Feeding, drug abuse, and the sensitization of reward by metabolic need

    • Kenneth D. Carr

    Reward/Drug Abuse Mechanisms 21 March 2013 Pages: 1455 - 1467

22. Opioid receptors: Some perspectives from early studies of their role in normal physiology, stress responsivity, and in specific addictive diseases

    • Mary Jeanne Kreek

    Reward/Drug Abuse Mechanisms 21 March 2013 Pages: 1469 - 1488