Pain
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Targeting the acidified inflammatory microenvironment with pH-sensitive opioids is a novel approach for managing visceral pain while mitigating side effects. The analgesic efficacy of pH-dependent opioids has not been studied during the evolution of inflammation, where fluctuating tissue pH and repeated therapeutic dosing could influence analgesia and side effects. Whether pH-dependent opioids can inhibit human nociceptors during extracellular acidification is unexplored. ⋯ Thus, NFEPP provides analgesia throughout the evolution of colitis with maximal activity at peak inflammation. The actions of NFEPP are restricted to acidified layers of the colon, without common side effects in normal tissues. N -(3-fluoro-1-phenethylpiperidine-4-yl)- N -phenyl propionamide could provide safe and effective analgesia during acute colitis, such as flares of ulcerative colitis.
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Although founded on the basis of the study of pain, the International Association for the Study of Pain (IASP) has actively advocated for improving pain relief and access to pain management in a variety of ways. The Global Year was launched in 2004 and has continued with a different theme each year, and "Pain Awareness Month" is held every September. ⋯ The work of IASP on the 11th version of the International Classification of Disease has ensured that chronic pain is recognized as a disease in its own right, and the establishment of the Global Alliance of Partners for Pain Advocacy Task Force recognizes the importance of engaging people with lived experience of pain in accomplishing IASP's mission. The Working Group on Global Advocacy now spearheads IASP's global efforts in capacity building to ensure that pain advocacy activities will continue to grow.