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Articles 1 - 7 of 7
Full-Text Articles in Life Sciences
Bridging The Translational Gap Between Rodent And Human Pain Research, Tayler Diane Sheahan
Bridging The Translational Gap Between Rodent And Human Pain Research, Tayler Diane Sheahan
Arts & Sciences Electronic Theses and Dissertations
The treatment of chronic pain is an immense clinical and societal burden rooted in the ineffectiveness and adverse side effects of existing analgesics. Extensive efforts have been directed towards the development of novel pain therapies with maximal efficacy and minimal unwanted effects; however, putative therapeutic targets identified in preclinical rodent models rarely translate in clinical trials. The poor translational record of basic pain research findings has been attributed, in part, to the use of suboptimal rodent pain models and behavioral endpoints used to assess putative analgesics, as well as differences in the pharmacological profiles of rodents and humans. The work …
Methylglyoxal Requires Ac1 And Trpa1 To Produce Pain And Spinal Neuron Activation, Ryan B. Griggs, Don E. Laird, Renee R. Donahue, Weisi Fu, Bradley K. Taylor
Methylglyoxal Requires Ac1 And Trpa1 To Produce Pain And Spinal Neuron Activation, Ryan B. Griggs, Don E. Laird, Renee R. Donahue, Weisi Fu, Bradley K. Taylor
Physiology Faculty Publications
Methylglyoxal (MG) is a metabolite of glucose that may contribute to peripheral neuropathy and pain in diabetic patients. MG increases intracellular calcium in sensory neurons and produces behavioral nociception via the cation channel transient receptor potential ankyrin 1 (TRPA1). However, rigorous characterization of an animal model of methylglyoxal-evoked pain is needed, including testing whether methylglyoxal promotes negative pain affect. Furthermore, it remains unknown whether methylglyoxal is sufficient to activate neurons in the spinal cord dorsal horn, whether this requires TRPA1, and if the calcium-sensitive adenylyl cyclase 1 isoform (AC1) contributes to MG-evoked pain. We administered intraplantar methylglyoxal and then evaluated …
Complement 3a Receptor In Dorsal Horn Microglia Mediates Pronociceptive Neuropeptide Signaling, Suzanne Doolen, Jennifer Cook, Maureen Riedl, Kelley Kitto, Shinichi Kohsaka, Christopher N. Honda, Carolyn A. Fairbanks, Bradley K. Taylor, Lucy Vulchanova
Complement 3a Receptor In Dorsal Horn Microglia Mediates Pronociceptive Neuropeptide Signaling, Suzanne Doolen, Jennifer Cook, Maureen Riedl, Kelley Kitto, Shinichi Kohsaka, Christopher N. Honda, Carolyn A. Fairbanks, Bradley K. Taylor, Lucy Vulchanova
Physiology Faculty Publications
The complement 3a receptor (C3aR1) participates in microglial signaling under pathological conditions and was recently shown to be activated by the neuropeptide TLQP‐21. We previously demonstrated that TLQP‐21 elicits hyperalgesia and contributes to nerve injury‐induced hypersensitivity through an unknown mechanism in the spinal cord. Here we determined that this mechanism requires C3aR1 and that microglia are the cellular target for TLQP‐21. We propose a novel neuroimmune signaling pathway involving TLQP‐21‐induced activation of microglial C3aR1 that then contributes to spinal neuroplasticity and neuropathic pain. This unique dual‐ligand activation of C3aR1 by a neuropeptide (TLQP‐21) and an immune mediator (C3a) represents a …
The Potential For Sentience In Fishes, Jay R. Stauffer Jr.
The Potential For Sentience In Fishes, Jay R. Stauffer Jr.
Animal Sentience
Balcombe’s book is filled with information on the biology, behavior, and life history of fishes. I do not agree with all his premises. I am still somewhat perplexed about the discussion of whether fish feel pain; I am not sure whether the distinction between nociception and pain makes any difference. Overall, however, his treatment of the principles of both natural and sexual selection is comprehensive and accurate, and has greatly increased my knowledge and awareness of the biology, ethology, and potential for sentience in fishes. In summary, this work has exposed me to new ideas about how to examine fishes …
The “Precautionary Principle” – A Work In Progress, Shelley Adamo
The “Precautionary Principle” – A Work In Progress, Shelley Adamo
Animal Sentience
The target article by Birch illustrates the practical difficulties with the “Animal Sentience Precautionary Principle” (ASPP) while presenting potential solutions. However, the ASPP will be difficult to use without guidelines detailing how evidence of sentience should be assessed. Moreover, extrapolating conclusions found for a single species to all species within an Order is problematic. Finally, I recommend that Birch demonstrate his ASPP framework using a controversial test case to help show how it could be used in real-world situations.
Assessing Negative And Positive Evidence For Animal Pain, Robert W. Elwood
Assessing Negative And Positive Evidence For Animal Pain, Robert W. Elwood
Animal Sentience
Jonathan Birch suggests that we should take one well-conducted study that produces results consistent with the idea of pain as being sufficient to invoke the animal sentience precautionary principle. Here, I consider how to balance negative and positive results from such studies using examples from my own work. I also consider which criteria of pain might provide strong inference about pain and which may prove to be weaker.
Imaging Pain And Brain Plasticity: A Longitudinal Structural Imaging Study, James Hart Bishop
Imaging Pain And Brain Plasticity: A Longitudinal Structural Imaging Study, James Hart Bishop
Graduate College Dissertations and Theses
Chronic musculoskeletal pain is a leading cause of disability worldwide yet the mechanisms of chronification and neural responses to effective treatment remain elusive. Non-invasive imaging techniques are useful for investigating brain alterations associated with health and disease. Thus the overall goal of this dissertation was to investigate the white (WM) and grey matter (GM) structural differences in patients with musculoskeletal pain before and after psychotherapeutic intervention: cognitive behavioral therapy (CBT). To aid in the interpretation of clinical findings, we used a novel porcine model of low back pain-like pathophysiology and developed a post-mortem, in situ, neuroimaging approach to facilitate translational …