I maintain several research areas within behavioral pharmacology. A key line of research involves the determination of the role of ghrelin (an orexigenic peptide) on nicotine and cocaine reinforcement. A second line of research involves characterizing the impact of chronic nicotine on meal pattern and body weight in male and female rats as a function of maintenance diet. A final line of research involves social influence on opiate effects in mice (with S. Eitan). My research has been funded by NIDA (collaboration with Jack Nation) and by corporate sponsors such as Thompson Medical Company and Knoll Pharmaceutical.
Emery MA, Shawn Bates ML, Wellman PJ, Eitan S. Hydrocodone is More Effective than Morphine or Oxycodone in Suppressing the Development of Burn-Induced Mechanical Allodynia. Pain Med. 2017 Mar 18.
Emery MA, Bates ML, Wellman PJ, Eitan S. Hydrocodone, but Neither Morphine nor Oxycodone, Is Effective in Suppressing Burn-Induced Mechanical Allodynia in the Uninjured Foot Contralateral to the Burn. J Burn Care Res. 2017 Mar 13.
Emery MA, Bates ML, Wellman PJ, Eitan S. Burn injury decreases the antinociceptive effects of opioids. Behav Pharmacol. 2017 Jan 27.
Mendez IA, Carcoba L, Wellman PJ, Cepeda-Benito A. High-fat diet meal patterns during and after continuous nicotine treatment in male rats. Exp ClinPsychopharmacol. 2016 Dec;24(6):477-484.
Rodriguez JA, Fehrentz JA, Martinez J, Ben Haj Salah K, Wellman PJ. The GHR-R antagonist JMV 2959 neither induces malaise nor alters the malaise property of LiCl in the adult male rat. Physiol Behav. 2018 Jan 1;183:46-48.
Bates MLS, Emery MA, Wellman PJ, Eitan S. Inhibiting social support from massage-like stroking increases morphine dependence. Behav Pharmacol. 2017 Dec;28(8):642-647.
Bates MLS, Hofford RS, Emery MA, Wellman PJ, Eitan S. The role of the vasopressin system and dopamine D1 receptors in the effects of social housing condition on morphine reward. Drug Alcohol Depend. 2018 Jul 1;188:113-118.
Rodriguez JA, Fehrentz JA, Martinez J, Ben Haj Salah K, Wellman PJ. The GHR-R antagonist JMV 2959 neither induces malaise nor alters the malaise property of LiCl in the adult male rat.Physiol Behav. 2018 Jan 1;183:46-48.
Affiliated Research Cluster
Neuroscience. Behavioral pharmacology; feeding; drug addiction; rodent models.