{"id":"https://openalex.org/W1970538166","doi":"https://doi.org/10.1111/j.1460-9568.2004.03284.x","title":"Co\u2010localization of endomorphin\u20102 and substance P in primary afferent nociceptors and effects of injury: a light and electron microscopic study in the rat","display_name":"Co\u2010localization of endomorphin\u20102 and substance P in primary afferent nociceptors and effects of injury: a light and electron microscopic study in the rat","publication_year":2004,"publication_date":"2004-04-01","ids":{"openalex":"https://openalex.org/W1970538166","doi":"https://doi.org/10.1111/j.1460-9568.2004.03284.x","mag":"1970538166","pmid":"https://pubmed.ncbi.nlm.nih.gov/15078552"},"language":"en","primary_location":{"id":"doi:10.1111/j.1460-9568.2004.03284.x","doi":"https://doi.org/10.1111/j.1460-9568.2004.03284.x","is_oa":false,"landing_page_url":"https://doi.org/10.1111/j.1460-9568.2004.03284.x","pdf_url":null,"source":{"id":"https://openalex.org/S171130801","display_name":"European Journal of Neuroscience","issn_l":"0953-816X","issn":["0953-816X","1460-9568"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-c","doyens","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"European Journal of Neuroscience","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5075448432","display_name":"Katarina Sanderson Nydahl","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I180670191","display_name":"University of California, San Francisco","ror":"https://ror.org/043mz5j54","country_code":"US","type":"education","lineage":["https://openalex.org/I180670191"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Katarina Sanderson Nydahl","raw_affiliation_strings":["Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA","Department of Physiology, University of California San Francisco, San Francisco, CA 94143, USA","W.M. Keck Center for Integrative Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]},{"raw_affiliation_string":"Department of Physiology, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]},{"raw_affiliation_string":"W.M. Keck Center for Integrative Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091173504","display_name":"Kate Skinner","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I180670191","display_name":"University of California, San Francisco","ror":"https://ror.org/043mz5j54","country_code":"US","type":"education","lineage":["https://openalex.org/I180670191"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kate Skinner","raw_affiliation_strings":["Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA","W.M. Keck Center for Integrative Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]},{"raw_affiliation_string":"W.M. Keck Center for Integrative Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014886042","display_name":"David J. Julius","orcid":"https://orcid.org/0000-0002-6365-4867","observed_orcids":["https://orcid.org/0000-0002-6365-4867"]},"institutions":[{"id":"https://openalex.org/I180670191","display_name":"University of California, San Francisco","ror":"https://ror.org/043mz5j54","country_code":"US","type":"education","lineage":["https://openalex.org/I180670191"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"David Julius","raw_affiliation_strings":["Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA 94143, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5007740596","display_name":"Allan I. Basbaum","orcid":"https://orcid.org/0000-0002-1710-6333","observed_orcids":["https://orcid.org/0000-0002-1710-6333"]},"institutions":[{"id":"https://openalex.org/I180670191","display_name":"University of California, San Francisco","ror":"https://ror.org/043mz5j54","country_code":"US","type":"education","lineage":["https://openalex.org/I180670191"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Allan I. Basbaum","raw_affiliation_strings":["Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA","Department of Physiology, University of California San Francisco, San Francisco, CA 94143, USA","W.M. Keck Center for Integrative Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]},{"raw_affiliation_string":"Department of Physiology, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]},{"raw_affiliation_string":"W.M. Keck Center for Integrative Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA","institution_ids":["https://openalex.org/I180670191"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I180670191"],"apc_list":{"value":3560,"currency":"USD","value_usd":3560},"apc_paid":null,"fwci":3.9025,"has_fulltext":false,"cited_by_count":66,"citation_normalized_percentile":{"value":0.92657258,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"19","issue":"7","first_page":"1789","last_page":"1799"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10196","display_name":"Pain Mechanisms and Treatments","score":0.8026999831199646,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10196","display_name":"Pain Mechanisms and Treatments","score":0.8026999831199646,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10814","display_name":"Neuropeptides and Animal Physiology","score":0.18950000405311584,"subfield":{"id":"https://openalex.org/subfields/2804","display_name":"Cellular and Molecular Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11204","display_name":"Ion Channels and Receptors","score":0.004999999888241291,"subfield":{"id":"https://openalex.org/subfields/2809","display_name":"Sensory Systems"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/endomorphin-2","display_name":"endomorphin-2","score":1.0},{"id":"https://openalex.org/keywords/substance-p","display_name":"substance P","score":0.9990000128746033},{"id":"https://openalex.org/keywords/primary-afferent-nociceptors","display_name":"primary afferent nociceptors","score":0.921999990940094},{"id":"https://openalex.org/keywords/dorsal-root-ganglia","display_name":"dorsal root ganglia","score":0.9380000233650208},{"id":"https://openalex.org/keywords/spinal-cord-dorsal-horn","display_name":"dorsal horn","score":0.9739999771118164},{"id":"https://openalex.org/keywords/mu-opioid-receptor","display_name":"mu-opioid receptor","score":0.890999972820282},{"id":"https://openalex.org/keywords/colocalization","display_name":"colocalization","score":0.6380000114440918},{"id":"https://openalex.org/keywords/vanilloid-receptor-1","display_name":"vanilloid receptor 1","score":0.7310000061988831},{"id":"https://openalex.org/keywords/sciatic-nerve-axotomy","display_name":"sciatic nerve axotomy","score":0.8320000171661377},{"id":"https://openalex.org/keywords/dense-core-vesicles","display_name":"dense core vesicles","score":0.7720000147819519}],"concepts":[{"id":"https://openalex.org/C2776533618","wikidata":"https://www.wikidata.org/wiki/Q411041","display_name":"Substance P","level":4,"score":0.7610371112823486},{"id":"https://openalex.org/C2776281502","wikidata":"https://www.wikidata.org/wiki/Q1395415","display_name":"Dorsal root ganglion","level":3,"score":0.6172605156898499},{"id":"https://openalex.org/C172659308","wikidata":"https://www.wikidata.org/wiki/Q412542","display_name":"Nociceptor","level":4,"score":0.604130744934082},{"id":"https://openalex.org/C2779683492","wikidata":"https://www.wikidata.org/wiki/Q792615","display_name":"Axotomy","level":3,"score":0.5830897688865662},{"id":"https://openalex.org/C2780775167","wikidata":"https://www.wikidata.org/wiki/Q9606","display_name":"Spinal cord","level":2,"score":0.5716463327407837},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.4993259906768799},{"id":"https://openalex.org/C2909382400","wikidata":"https://www.wikidata.org/wiki/Q9606","display_name":"Lumbar Spinal Cord","level":3,"score":0.4803118109703064},{"id":"https://openalex.org/C35866371","wikidata":"https://www.wikidata.org/wiki/Q6005502","display_name":"Immunocytochemistry","level":2,"score":0.4573284387588501},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.4352279305458069},{"id":"https://openalex.org/C118303440","wikidata":"https://www.wikidata.org/wiki/Q419968","display_name":"Neuropeptide","level":3,"score":0.424530565738678},{"id":"https://openalex.org/C15490471","wikidata":"https://www.wikidata.org/wiki/Q2734305","display_name":"Nociception","level":3,"score":0.4176226258277893},{"id":"https://openalex.org/C151077648","wikidata":"https://www.wikidata.org/wiki/Q324076","display_name":"Dynorphin","level":5,"score":0.4163247346878052},{"id":"https://openalex.org/C170493617","wikidata":"https://www.wikidata.org/wiki/Q208467","display_name":"Receptor","level":2,"score":0.40532806515693665},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.34962642192840576},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.3405911922454834},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.2814195156097412},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.27573955059051514},{"id":"https://openalex.org/C529278444","wikidata":"https://www.wikidata.org/wiki/Q47273","display_name":"Central nervous system","level":2,"score":0.2589641809463501},{"id":"https://openalex.org/C88016717","wikidata":"https://www.wikidata.org/wiki/Q417189","display_name":"Opioid peptide","level":4,"score":0.20156461000442505},{"id":"https://openalex.org/C2781063702","wikidata":"https://www.wikidata.org/wiki/Q427523","display_name":"Opioid","level":3,"score":0.1740724742412567},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.057918429374694824}],"mesh":[{"descriptor_ui":"D000344","descriptor_name":"Afferent Pathways","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D000818","descriptor_name":"Animals","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005727","descriptor_name":"Ganglia, Spinal","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D005727","descriptor_name":"Ganglia, Spinal","qualifier_ui":"Q000648","qualifier_name":"ultrastructure","is_major_topic":false},{"descriptor_ui":"D006023","descriptor_name":"Glycoproteins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D007150","descriptor_name":"Immunohistochemistry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D007381","descriptor_name":"Intermediate Filament Proteins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D007839","descriptor_name":"Functional Laterality","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008562","descriptor_name":"Membrane Glycoproteins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D009419","descriptor_name":"Nerve Tissue Proteins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D009475","descriptor_name":"Neurons, Afferent","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D009842","descriptor_name":"Oligopeptides","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D012584","descriptor_name":"Sciatic Nerve","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D013116","descriptor_name":"Spinal Cord","qualifier_ui":"Q000166","qualifier_name":"cytology","is_major_topic":true},{"descriptor_ui":"D013116","descriptor_name":"Spinal Cord","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D013373","descriptor_name":"Substance P","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D015415","descriptor_name":"Biomarkers","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015740","descriptor_name":"Calcitonin Gene-Related Peptide","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D016253","descriptor_name":"Microscopy, Immunoelectron","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D016900","descriptor_name":"Neurofilament Proteins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D017207","descriptor_name":"Rats, Sprague-Dawley","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D018345","descriptor_name":"Mice, Knockout","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D019771","descriptor_name":"Axotomy","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D020671","descriptor_name":"Posterior Horn Cells","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D020671","descriptor_name":"Posterior Horn Cells","qualifier_ui":"Q000648","qualifier_name":"ultrastructure","is_major_topic":false},{"descriptor_ui":"D037102","descriptor_name":"Lectins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D048429","descriptor_name":"Cell Size","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D051379","descriptor_name":"Mice","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D051381","descriptor_name":"Rats","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D053675","descriptor_name":"Versicans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D064531","descriptor_name":"Peripherins","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1111/j.1460-9568.2004.03284.x","doi":"https://doi.org/10.1111/j.1460-9568.2004.03284.x","is_oa":false,"landing_page_url":"https://doi.org/10.1111/j.1460-9568.2004.03284.x","pdf_url":null,"source":{"id":"https://openalex.org/S171130801","display_name":"European Journal of Neuroscience","issn_l":"0953-816X","issn":["0953-816X","1460-9568"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-c","doyens","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"European Journal of Neuroscience","raw_type":"journal-article"},{"id":"pmid:15078552","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/15078552","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The European journal of neuroscience","raw_type":"Comparative Study"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.8371999859809875,"display_name":"Good health and well-being"}],"study_designs":[],"awards":[{"id":"https://openalex.org/G2159851533","display_name":"SPINAL MECHANISMS OF OPIOID ANALGESIA AND TOLERANCE","funder_award_id":"2r01da008377-06","funder_id":"https://openalex.org/F4320332161","funder_display_name":"National Institutes of Health"},{"id":"https://openalex.org/G2677438300","display_name":null,"funder_award_id":"DE 08973","funder_id":"https://openalex.org/F4320337365","funder_display_name":"National Institute of Dental and Craniofacial Research"},{"id":"https://openalex.org/G3171153777","display_name":null,"funder_award_id":"DA 08377","funder_id":"https://openalex.org/F4320337347","funder_display_name":"National Institute on Drug Abuse"},{"id":"https://openalex.org/G726581290","display_name":null,"funder_award_id":"NS 14627","funder_id":"https://openalex.org/F4320337359","funder_display_name":"National Institute of Neurological Disorders and Stroke"}],"funders":[{"id":"https://openalex.org/F4320307115","display_name":"Bristol-Myers Squibb","ror":"https://ror.org/00gtmwv55"},{"id":"https://openalex.org/F4320322327","display_name":"Knut och Alice Wallenbergs Stiftelse","ror":"https://ror.org/004hzzk67"},{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"},{"id":"https://openalex.org/F4320332622","display_name":"University of California, San Francisco","ror":"https://ror.org/043mz5j54"},{"id":"https://openalex.org/F4320337347","display_name":"National Institute on Drug Abuse","ror":"https://ror.org/00fq5cm18"},{"id":"https://openalex.org/F4320337359","display_name":"National Institute of Neurological Disorders and Stroke","ror":"https://ror.org/01s5ya894"},{"id":"https://openalex.org/F4320337365","display_name":"National Institute of Dental and Craniofacial Research","ror":"https://ror.org/004a2wv92"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W29671035","https://openalex.org/W1511198581","https://openalex.org/W1635840023","https://openalex.org/W1883044208","https://openalex.org/W1970919723","https://openalex.org/W1975262853","https://openalex.org/W1977885746","https://openalex.org/W1980410333","https://openalex.org/W1981697384","https://openalex.org/W1983233782","https://openalex.org/W1990336277","https://openalex.org/W1992169702","https://openalex.org/W1993970124","https://openalex.org/W2003404396","https://openalex.org/W2007018158","https://openalex.org/W2011973300","https://openalex.org/W2012758933","https://openalex.org/W2014042551","https://openalex.org/W2022044685","https://openalex.org/W2023551439","https://openalex.org/W2026437728","https://openalex.org/W2028833035","https://openalex.org/W2032302839","https://openalex.org/W2037175122","https://openalex.org/W2037288595","https://openalex.org/W2040923976","https://openalex.org/W2046477393","https://openalex.org/W2054706403","https://openalex.org/W2063741438","https://openalex.org/W2063936869","https://openalex.org/W2071481472","https://openalex.org/W2074011022","https://openalex.org/W2080447652","https://openalex.org/W2092657315","https://openalex.org/W2101139976","https://openalex.org/W2107705149","https://openalex.org/W2120492235","https://openalex.org/W2144448591","https://openalex.org/W2159485937","https://openalex.org/W2162769563","https://openalex.org/W2345135723","https://openalex.org/W2414686393"],"related_works":["https://openalex.org/W2611840840","https://openalex.org/W4309699486","https://openalex.org/W4288905995","https://openalex.org/W2080447652","https://openalex.org/W1983233782","https://openalex.org/W2095087647","https://openalex.org/W1975672697","https://openalex.org/W2023551439","https://openalex.org/W3176027227","https://openalex.org/W2002949730"],"abstract_inverted_index":{"Endomorphin-2":[0],"(EM2)":[1],"is":[2],"a":[3,133,145,209],"tetrapeptide":[4],"with":[5,99,117,130,144],"remarkable":[6],"affinity":[7],"and":[8,21,35,81,127,173,187,237],"selectivity":[9],"for":[10],"the":[11,15,44,62,148,155,177,218,225],"mu-opioid":[12,247],"receptor.":[13],"In":[14,67,154],"present":[16],"study,":[17],"we":[18,49,207],"used":[19],"double-fluorescence":[20],"electron":[22,180],"microscopic":[23,181],"immunocytochemistry":[24],"to":[25,87],"identify":[26],"subsets":[27],"of":[28,40,59,75,102,111,135,147,185,193,243],"EM2-expressing":[29],"neurons":[30,106],"in":[31,54,83,90,142,165,170,189,214,217],"dorsal":[32,38,46,71,103,159,196,220],"root":[33,47,72,104],"ganglia":[34,105],"spinal":[36,157],"cord":[37,158],"horn":[39,197],"adult":[41,68],"rats.":[42],"Within":[43],"lumbar":[45,156,194],"ganglia,":[48,73],"found":[50],"EM2":[51,79,139,161,186,215,238,241],"immunoreactivity":[52,80,216],"mainly":[53],"small-to-medium":[55],"size":[56,84],"neurons,":[57],"most":[58],"which":[60],"co-expressed":[61],"neuropeptide":[63],"substance":[64],"P":[65],"(SP).":[66],"rat":[69],"L4":[70],"23.9%":[74],"neuronal":[76],"profiles":[77],"contained":[78],"ranged":[82],"from":[85],"15":[86],"36":[88],"microM":[89],"diameter":[91],"(mean":[92],"24.3":[93],"+/-":[94],"4.3":[95],"microM).":[96],"Double-labelling":[97],"experiments":[98],"cytochemical":[100],"markers":[101],"showed":[107,183],"that":[108,151,224,234],"approximately":[109],"95%":[110],"EM2-immunoreactive":[112],"cell":[113],"bodies":[114],"also":[115],"label":[116,129],"SP":[118,188,236,244],"antisera,":[119],"83%":[120],"co-express":[121],"vanilloid":[122],"receptor":[123],"subtype":[124],"1/capsaicin":[125],"receptor,":[126],"17%":[128],"isolectin":[131],"B4,":[132],"marker":[134],"non-peptide":[136],"nociceptors.":[137],"Importantly,":[138],"immunostaining":[140],"persisted":[141],"mice":[143],"deletion":[146],"preprotachykinin-A":[149],"gene":[150],"encodes":[152],"SP.":[153],"horn,":[160],"expression":[162],"was":[163],"concentrated":[164],"presumptive":[166],"primary":[167,231],"afferent":[168,232],"terminals":[169],"laminae":[171],"I":[172],"outer":[174],"II.":[175],"At":[176],"ultrastructural":[178],"level,":[179],"double-labelling":[182],"co-localization":[184],"dense":[190],"core":[191],"vesicles":[192],"superficial":[195,219],"synaptic":[198],"terminals.":[199],"Finally,":[200],"2":[201],"weeks":[202],"after":[203],"sciatic":[204],"nerve":[205],"axotomy":[206],"observed":[208],"greater":[210],"than":[211],"50%":[212],"reduction":[213],"horn.":[221],"We":[222],"suggest":[223],"very":[226],"strong":[227],"anatomical":[228],"relationship":[229],"between":[230],"nociceptors":[233],"express":[235],"underlies":[239],"an":[240],"regulation":[242],"release":[245],"via":[246],"autoreceptors.":[248]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":4},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":2}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
