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Opioids in Post-stroke Pain: A Systematic Review and Meta-Analysis
Conclusions: The limited number of the included studies and their heterogeneity in terms of study design do not support the efficacy of opioids in post-stroke pain and in pain-related outcomes. Large double-blind randomized clinical trials with objective assessment of pain and related symptoms are needed to further investigate this topic.
Source: Frontiers in Pharmacology - November 27, 2020 Category: Drugs & Pharmacology Source Type: research

Effects of Adjuvant Analgesics on Cerebral Ischemia-Induced Mechanical Allodynia.
Abstract Central post-stroke pain (CPSP), a potential sequela of stroke, is classified as neuropathic pain. Although we recently established a CPSP-like model in mice, the effects of adjuvant analgesics as therapeutic drugs for neuropathic pain in this model are unknown. Hence, the aim of the present study was to assess the usefulness of our model by evaluating the effects of adjuvant analgesics used for treating neuropathic pain in this mouse model of CPSP. Male ddY mice were subjected to 30 min of bilateral carotid artery occlusion (BCAO). The development of hind paw mechanical allodynia was measured after BCA...
Source: Biological and Pharmaceutical Bulletin - May 8, 2016 Category: Drugs & Pharmacology Authors: Matsuura W, Harada S, Tokuyama S Tags: Biol Pharm Bull Source Type: research

The Risk of Ischemic Cardio- and Cerebrovascular Events Associated with Oxycodone –Naloxone and Other Extended-Release High-Potency Opioids: A Nested Case–Control Study
ConclusionsOur study does not indicate an association between oxycodone –naloxone and ischemic cardio- or cerebrovascular events. However, our findings do suggest that every change in ER HPO therapy should be conducted with caution.
Source: Drug Safety - February 12, 2017 Category: Drugs & Pharmacology Source Type: research

Connecting Metainflammation and Neuroinflammation Through the PTN-MK-RPTP β/ζ Axis: Relevance in Therapeutic Development
Conclusion The expression of the components of the PTN-MK-RPTPβ/ζ axis in immune cells and in inflammatory diseases suggests important roles for this axis in inflammation. Pleiotrophin has been recently identified as a limiting factor of metainflammation, a chronic pathological state that contributes to neuroinflammation and neurodegeneration. Pleiotrophin also seems to potentiate acute neuroinflammation independently of the inflammatory stimulus while MK seems to play different -even opposite- roles in acute neuroinflammation depending on the stimulus. Which are the functions of MK and PTN in chronic neuroi...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research

Lysophosphatidic Acid Receptor Signaling Underlying Chronic Pain and Neuroprotective Mechanisms through Prothymosin α.
Abstract For my Ph.D. research topic, I isolated endogenous morphine-like analgesic dipeptide, kyotorphin, which mediates Met-enkephalin release, and discovered kyotorphin synthetase, a putative receptor and antagonist. Furthermore, I succeeded in purifying μ-opioid receptor and functional reconstitution with purified G proteins. After receiving my full professor position at Nagasaki University in 1996, I worked on two topics of research, molecular mechanisms of chronic pain through lysophosphatidic acid (LPA) and identification and characterization of neuroprotective protein, prothymosin α. In a series of studi...
Source: Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan - November 8, 2019 Category: Drugs & Pharmacology Authors: Ueda H Tags: Yakugaku Zasshi Source Type: research