Niall P Murphy

Title(s)Adjunct Professor, Psychiatry and Biobehavioral Sciences
SchoolMedicine
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    Neurochemical bases for changes in decision-making across the lifespan
    NIH R01AG045380Aug 1, 2014 - May 31, 2020
    Role: Co-Principal Investigator
    Cafeteria diet-induced dysregulation of food seeking: neurochemical bases
    NIH R01DK098709May 1, 2014 - Apr 30, 2018
    Role: Co-Principal Investigator
    Placebos as insights into intersections of pain and reward in a preclinical model
    NIH R21DA027570Sep 30, 2009 - Aug 31, 2012
    Role: Co-Principal Investigator
    Peptide Biomarkers of drug exposure: from brain microdialysate to plasma
    NIH R21DA027499Sep 1, 2009 - Aug 31, 2012
    Role: Co-Principal Investigator

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Junk Food Exposure Disrupts Selection of Food-Seeking Actions in Rats. Front Psychiatry. 2018; 9:350. Kosheleff AR, Araki J, Tsan L, Chen G, Murphy NP, Maidment NT, Ostlund SB. PMID: 30166974; PMCID: PMC6106797.
      View in: PubMed   Mentions: 6  
    2. Pattern of access determines influence of junk food diet on cue sensitivity and palatability. Appetite. 2018 04 01; 123:135-145. Kosheleff AR, Araki J, Hsueh J, Le A, Quizon K, Ostlund SB, Maidment NT, Murphy NP. PMID: 29248689; PMCID: PMC5817006.
      View in: PubMed   Mentions: 3     Fields:    Translation:Animals
    3. Sex-specific enhancement of palatability-driven feeding in adolescent rats. PLoS One. 2017; 12(7):e0180907. Marshall AT, Liu AT, Murphy NP, Maidment NT, Ostlund SB. PMID: 28708901; PMCID: PMC5510835.
      View in: PubMed   Mentions: 7     Fields:    Translation:Animals
    4. Effects of decreased dopamine transporter levels on nigrostriatal neurons and paraquat/maneb toxicity in mice. Neurobiol Aging. 2017 03; 51:54-66. Richter F, Gabby L, McDowell KA, Mulligan CK, De La Rosa K, Sioshansi PC, Mortazavi F, Cely I, Ackerson LC, Tsan L, Murphy NP, Maidment NT, Chesselet MF. PMID: 28038352; PMCID: PMC5292275.
      View in: PubMed   Mentions: 8     Fields:    Translation:AnimalsCells
    5. Parsing the hedonic and motivational influences of nociceptin on feeding using licking microstructure analysis in mice. Behav Pharmacol. 2016 09; 27(6):516-27. Mendez IA, Maidment NT, Murphy NP. PMID: 27100061; PMCID: PMC4965319.
      View in: PubMed   Mentions: 4     Fields:    Translation:AnimalsCells
    6. Microglia disrupt mesolimbic reward circuitry in chronic pain. J Neurosci. 2015 Jun 03; 35(22):8442-50. Taylor AM, Castonguay A, Taylor AJ, Murphy NP, Ghogha A, Cook C, Xue L, Olmstead MC, De Koninck Y, Evans CJ, Cahill CM. PMID: 26041913; PMCID: PMC4452552.
      View in: PubMed   Mentions: 51     Fields:    Translation:AnimalsCells
    7. Involvement of Endogenous Enkephalins and β-Endorphin in Feeding and Diet-Induced Obesity. Neuropsychopharmacology. 2015 Aug; 40(9):2103-12. Mendez IA, Ostlund SB, Maidment NT, Murphy NP. PMID: 25754760; PMCID: PMC4613613.
      View in: PubMed   Mentions: 13     Fields:    Translation:Animals
    8. Exogenous and evoked oxytocin restores social behavior in the Cntnap2 mouse model of autism. Sci Transl Med. 2015 Jan 21; 7(271):271ra8. Peñagarikano O, Lázaro MT, Lu XH, Gordon A, Dong H, Lam HA, Peles E, Maidment NT, Murphy NP, Yang XW, Golshani P, Geschwind DH. PMID: 25609168; PMCID: PMC4498455.
      View in: PubMed   Mentions: 106     Fields:    Translation:HumansAnimalsCells
    9. Dynamic measurement of extracellular opioid activity: status quo, challenges, and significance in rewarded behaviors. ACS Chem Neurosci. 2015 Jan 21; 6(1):94-107. Murphy NP. PMID: 25585132.
      View in: PubMed   Mentions: 7     Fields:    Translation:HumansAnimalsCells
    10. Correlation between ventral striatal catecholamine content and nociceptive thresholds in neuropathic mice. J Pain. 2014 Aug; 15(8):878-85. Taylor AM, Murphy NP, Evans CJ, Cahill CM. PMID: 25052072; PMCID: PMC4136541.
      View in: PubMed   Mentions: 11     Fields:    Translation:Animals
    11. The redistribution of Drosophila vesicular monoamine transporter mutants from synaptic vesicles to large dense-core vesicles impairs amine-dependent behaviors. J Neurosci. 2014 May 14; 34(20):6924-37. Grygoruk A, Chen A, Martin CA, Lawal HO, Fei H, Gutierrez G, Biedermann T, Najibi R, Hadi R, Chouhan AK, Murphy NP, Schweizer FE, Macleod GT, Maidment NT, Krantz DE. PMID: 24828646; PMCID: PMC4019805.
      View in: PubMed   Mentions: 16     Fields:    Translation:AnimalsCells
    12. Targeted expression of μ-opioid receptors in a subset of striatal direct-pathway neurons restores opiate reward. Nat Neurosci. 2014 Feb; 17(2):254-61. Cui Y, Ostlund SB, James AS, Park CS, Ge W, Roberts KW, Mittal N, Murphy NP, Cepeda C, Kieffer BL, Levine MS, Jentsch JD, Walwyn WM, Sun YE, Evans CJ, Maidment NT, Yang XW. PMID: 24413699; PMCID: PMC4008330.
      View in: PubMed   Mentions: 49     Fields:    Translation:AnimalsCells
    13. Operant assays for assessing pain in preclinical rodent models: highlights from an orofacial assay. Curr Top Behav Neurosci. 2014; 20:121-45. Murphy NP, Mills RH, Caudle RM, Neubert JK. PMID: 25103871.
      View in: PubMed   Mentions: 6     Fields:    Translation:HumansAnimals
    14. Targeted deletion of the mouse α2 nicotinic acetylcholine receptor subunit gene (Chrna2) potentiates nicotine-modulated behaviors. J Neurosci. 2013 May 01; 33(18):7728-41. Lotfipour S, Byun JS, Leach P, Fowler CD, Murphy NP, Kenny PJ, Gould TJ, Boulter J. PMID: 23637165; PMCID: PMC3831006.
      View in: PubMed   Mentions: 29     Fields:    Translation:Animals
    15. Decreased consumption of sweet fluids in μ opioid receptor knockout mice: a microstructural analysis of licking behavior. Psychopharmacology (Berl). 2013 Sep; 229(1):105-13. Ostlund SB, Kosheleff A, Maidment NT, Murphy NP. PMID: 23568577; PMCID: PMC3742650.
      View in: PubMed   Mentions: 19     Fields:    Translation:Animals
    16. Aldehyde dehydrogenase inhibition as a pathogenic mechanism in Parkinson disease. Proc Natl Acad Sci U S A. 2013 Jan 08; 110(2):636-41. Fitzmaurice AG, Rhodes SL, Lulla A, Murphy NP, Lam HA, O'Donnell KC, Barnhill L, Casida JE, Cockburn M, Sagasti A, Stahl MC, Maidment NT, Ritz B, Bronstein JM. PMID: 23267077; PMCID: PMC3545765.
      View in: PubMed   Mentions: 76     Fields:    Translation:HumansAnimalsCells
    17. Dispensable, redundant, complementary, and cooperative roles of dopamine, octopamine, and serotonin in Drosophila melanogaster. Genetics. 2013 Jan; 193(1):159-76. Chen A, Ng F, Lebestky T, Grygoruk A, Djapri C, Lawal HO, Zaveri HA, Mehanzel F, Najibi R, Seidman G, Murphy NP, Kelly RL, Ackerson LC, Maidment NT, Jackson FR, Krantz DE. PMID: 23086220; PMCID: PMC3527243.
      View in: PubMed   Mentions: 24     Fields:    Translation:Animals
    18. Affective taste responses in the presence of reward- and aversion-conditioned stimuli and their relationship to psychomotor sensitization and place conditioning. Behav Brain Res. 2013 Jan 01; 236(1):289-294. Cagniard B, Murphy NP. PMID: 22940019.
      View in: PubMed   Mentions: 4     Fields:    Translation:Animals
    19. Placebo-induced analgesia in an operant pain model in rats. Pain. 2012 Oct; 153(10):2009-2016. Nolan TA, Price DD, Caudle RM, Murphy NP, Neubert JK. PMID: 22871471; PMCID: PMC3445785.
      View in: PubMed   Mentions: 22     Fields:    Translation:HumansAnimals
    20. Extracellular dopamine levels in striatal subregions track shifts in motivation and response cost during instrumental conditioning. J Neurosci. 2011 Jan 05; 31(1):200-7. Ostlund SB, Wassum KM, Murphy NP, Balleine BW, Maidment NT. PMID: 21209205; PMCID: PMC3078720.
      View in: PubMed   Mentions: 40     Fields:    Translation:AnimalsCells
    21. The nociceptin/orphanin FQ system as a target for treating alcoholism. CNS Neurol Disord Drug Targets. 2010 Mar; 9(1):87-93. Murphy NP. PMID: 20201819.
      View in: PubMed   Mentions: 8     Fields:    Translation:HumansAnimalsCells
    22. Enkephalins, dynorphins, and beta-endorphin in the rat dorsal horn: an immunofluorescence colocalization study. J Comp Neurol. 2009 Nov 01; 517(1):51-68. Marvizón JC, Chen W, Murphy N. PMID: 19711397; PMCID: PMC2924145.
      View in: PubMed   Mentions: 24     Fields:    Translation:AnimalsCells
    23. Accumbal dopamine and serotonin activity throughout acquisition and expression of place conditioning: correlative relationships with preference and aversion. Eur J Neurosci. 2009 Mar; 29(5):1015-26. Weitemier AZ, Murphy NP. PMID: 19245370.
      View in: PubMed   Mentions: 14     Fields:    Translation:Animals
    24. Enhanced nicotine sensitivity in nociceptin/orphanin FQ receptor knockout mice. Neuropharmacology. 2009 Apr; 56(5):896-904. Sakoori K, Murphy NP. PMID: 19371589.
      View in: PubMed   Mentions: 13     Fields:    Translation:Animals
    25. Endogenous nociceptin modulates diet preference independent of motivation and reward. Physiol Behav. 2009 Apr 20; 97(1):1-13. Koizumi M, Cagniard B, Murphy NP. PMID: 19138695.
      View in: PubMed   Mentions: 11     Fields:    Translation:Animals
    26. Expression of morphine-conditioned place preference is more vulnerable than naloxone-conditioned place aversion to disruption by nociceptin in mice. Neurosci Lett. 2008 Oct 03; 443(2):108-12. Sakoori K, Murphy NP. PMID: 18662746.
      View in: PubMed   Mentions: 5     Fields:    Translation:Animals
    27. Endogenous nociceptin (orphanin FQ) suppresses basal hedonic state and acute reward responses to methamphetamine and ethanol, but facilitates chronic responses. Neuropsychopharmacology. 2008 Mar; 33(4):877-91. Sakoori K, Murphy NP. PMID: 17522627.
      View in: PubMed   Mentions: 21     Fields:    Translation:Animals
    28. Lack of evidence of a role for the neurosteroid allopregnanolone in ethanol-induced reward and c-fos expression in DBA/2 mice. Brain Res. 2006 Jun 13; 1094(1):107-18. Murphy NP, Sakoori K, Okabe C. PMID: 16750178.
      View in: PubMed   Mentions: 4     Fields:    Translation:Animals
    29. Maintenance of conditioned place preferences and aversion in C57BL6 mice: effects of repeated and drug state testing. Behav Brain Res. 2005 May 07; 160(1):34-43. Sakoori K, Murphy NP. PMID: 15836898.
      View in: PubMed   Mentions: 10     Fields:    Translation:Animals
    30. Nociceptin/orphanin FQ, hedonic state and the response to abused drugs. Nihon Shinkei Seishin Yakurigaku Zasshi. 2004 Oct; 24(5):295-8. Murphy NP. PMID: 15658507.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    31. Short-term effects of the nociceptin receptor antagonist Compound B on the development of methamphetamine sensitization in mice: a behavioral and c-fos expression mapping study. Brain Res. 2004 Aug 13; 1017(1-2):1-12. Okabe C, Murphy NP. PMID: 15261093.
      View in: PubMed   Mentions: 3     Fields:    Translation:Animals
    32. The NOP (ORL1) receptor antagonist Compound B stimulates mesolimbic dopamine release and is rewarding in mice by a non-NOP-receptor-mediated mechanism. Br J Pharmacol. 2004 Sep; 143(1):53-62. Koizumi M, Sakoori K, Midorikawa N, Murphy NP. PMID: 15289286; PMCID: PMC1575267.
      View in: PubMed   Mentions: 7     Fields:    Translation:AnimalsCells
    33. Exogenous, but not endogenous nociceptin modulates mesolimbic dopamine release in mice. J Neurochem. 2004 Apr; 89(1):257-63. Koizumi M, Midorikawa N, Takeshima H, Murphy NP. PMID: 15030410.
      View in: PubMed   Mentions: 13     Fields:    Translation:Animals
    34. Central administration of nociceptin/orphanin FQ blocks the acquisition of conditioned place preference to morphine and cocaine, but not conditioned place aversion to naloxone in mice. Psychopharmacology (Berl). 2004 Mar; 172(2):129-36. Sakoori K, Murphy NP. PMID: 14624329.
      View in: PubMed   Mentions: 41     Fields:    Translation:Animals
    35. Heroin-induced locomotion and mesolimbic dopamine release is unchanged in mice lacking the ORL.1 receptor gene. Brain Res. 2002 Oct 25; 953(1-2):276-80. Murphy NP, Lam HA, Chen Z, Pintar JE, Maidment NT. PMID: 12384262.
      View in: PubMed   Mentions: 4     Fields:    Translation:Animals
    36. Rat ventral midbrain dopamine neurons express the orphanin FQ/nociceptin receptor ORL-1. Neuroreport. 2002 Jul 02; 13(9):1137-40. Maidment NT, Chen Y, Tan AM, Murphy NP, Leslie FM. PMID: 12151756.
      View in: PubMed   Mentions: 20     Fields:    Translation:AnimalsCells
    37. Orphanin FQ/nociceptin blocks acquisition of morphine place preference. Brain Res. 1999 Jun 19; 832(1-2):168-70. Murphy NP, Lee Y, Maidment NT. PMID: 10375664.
      View in: PubMed   Mentions: 57     Fields:    Translation:Animals
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