{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T19:47:35Z","timestamp":1791920855022,"version":"4.3.4"},"reference-count":97,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2021,8,28]],"date-time":"2021-08-28T00:00:00Z","timestamp":1630108800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pharmaceuticals"],"abstract":"<jats:p>Pain is one of the most disabling symptoms of several clinical conditions. Neurobiologically, it is classified as nociceptive, inflammatory, neuropathic and dysfunctional. Opioids and nonsteroidal anti-inflammatory drugs (NSAIDs) are conventionally prescribed for the treatment of pain. Long-term administration of opioids results in the loss of analgesic efficacy, leading to increased dosage, tolerance, and addiction as the main drawbacks of their use, while the adverse effects of NSAIDs include gastric ulcer formation, intestinal bleeding, acute kidney injury, and hepatotoxicity. Lactoferrin is an iron-binding, anti-inflammatory glycoprotein that displays analgesic activities associated, in part, by interacting with the low-density lipoprotein receptor-related protein (LRP), which may result in the regulation of the DAMP\u2013TRAF6\u2013NF\u03baB, NO\u2013cGMP\u2013ATP K+-sensitive channel and opioid receptor signaling pathways. This review summarizes and discusses for the first time the analgesic effects of lactoferrin and its presumable mechanisms based on pre-clinical trials. Given its anti-nociceptive and anti-inflammatory properties, lactoferrin may be used as an adjunct to enhance the efficacy and to decrease the tolerogenic effects of canonical therapeutic drugs prescribed for pain treatment.<\/jats:p>","DOI":"10.3390\/ph14090868","type":"journal-article","created":{"date-parts":[[2021,8,31]],"date-time":"2021-08-31T04:07:28Z","timestamp":1630382848000},"page":"868","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Lactoferrin and Its Potential Impact for the Relief of Pain: A Preclinical Approach"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5664-4831","authenticated-orcid":false,"given":"Beatriz","family":"God\u00ednez-Chaparro","sequence":"first","affiliation":[{"name":"Departamento de Sistemas Biol\u00f3gicos, Universidad Aut\u00f3noma Metropolitana Unidad Xochimilco, Calzada del Hueso No. 1100, Ciudad de M\u00e9xico 04960, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fabiola","family":"Guzm\u00e1n-Mej\u00eda","sequence":"additional","affiliation":[{"name":"Departamento de Sistemas Biol\u00f3gicos, Universidad Aut\u00f3noma Metropolitana Unidad Xochimilco, Calzada del Hueso No. 1100, Ciudad de M\u00e9xico 04960, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0040-0958","authenticated-orcid":false,"given":"Maria Elisa","family":"Drago-Serrano","sequence":"additional","affiliation":[{"name":"Departamento de Sistemas Biol\u00f3gicos, Universidad Aut\u00f3noma Metropolitana Unidad Xochimilco, Calzada del Hueso No. 1100, Ciudad de M\u00e9xico 04960, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"569","DOI":"10.1097\/AAP.0b013e3181b4c517","article-title":"Pain: Friend or foe? 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