Dorsal root ganglia (DRG), trigeminal ganglia (TG), other sensory ganglia, and autonomic ganglia may be injured by some test article classes, including anti-neoplastic chemotherapeutics, adeno-associated virus-based gene therapies, antisense oligonucleotides, nerve growth factor inhibitors, and aminoglycoside antibiotics. This article reviews ganglion anatomy, cytology, and pathology (emphasizing sensory ganglia) among common nonclinical species used in assessing product safety for such test articles (TAs). Principal histopathologic findings associated with sensory ganglion injury include neuron degeneration, necrosis, and/or loss; increased satellite glial cell and/or Schwann cell numbers; and leukocyte infiltration and/or inflammation. Secondary nerve fiber degeneration and/or glial reactions may occur in nerves, dorsal spinal nerve roots, spinal cord (dorsal and occasionally lateral funiculi), and sometimes the brainstem. Ganglion findings related to TA administration may result from TA exposure and/or trauma related to direct TA delivery into the central nervous system or ganglia. In some cases, TA-related effects may need to be differentiated from a spectrum of artifactual and/or spontaneous background changes.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1177/01926233231213851 | DOI Listing |
The peripheral nervous system has been widely implicated in pathological conditions that exhibit distinct clinical presentations in men and women, most notably in chronic pain disorders. Here, we explored this sexual dimorphism at a molecular level. We expanded the available omics landscape in the PNS to include quantitative proteomics of the human dorsal root ganglia (hDRG) and nerve.
View Article and Find Full Text PDFCell Rep
December 2024
Institute of Neuroscience, Key Laboratory of Brain Cognition and Brain-inspired Intelligence Technology, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Beijing 100049, China; Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, Shanghai 201210, China. Electronic address:
In the dorsal striatum (DS), the direct- and indirect-pathway striatal projection neurons (dSPNs and iSPNs) play crucial opposing roles in controlling actions. However, it remains unclear whether and how dSPNs and iSPNs provide distinct and specific contributions to decision-making, a process transforming sensory inputs to actions. Here, we perform causal interrogations on the roles of dSPNs and iSPNs in the posterior DS (pDS) in auditory-guided decision-making.
View Article and Find Full Text PDFLife Sci
December 2024
Department of Medical Research and Development, Research Division, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan. Electronic address:
Aims: Chronic pain is a critical public health issue that severely impacts quality of life and poses significant treatment challenges, particularly due to the risk of adverse effects associated with pharmacological therapies. The search for effective non-invasive treatment alternatives has become increasingly relevant. Low-intensity focused ultrasound (LIFU) has been identified as an effective non-invasive strategy for pain management, although the underlying mechanism remains unclear.
View Article and Find Full Text PDFCell Mol Biol (Noisy-le-grand)
November 2024
Department of Zoology, Bacha Khan University, Charsadda 24420, Khyber Pakhtunkhwa, Pakistan.
The present study aimed to examine the impact of Ricinus communis and valacyclovir (VACV) on the progression of skin lesions and pain responses in mice infected with herpes simplex virus type 1 (HSV-1). Mice were infected with HSV-1 and treated with R. communis (8, 16, or 48 mg/kg) or VACV (8, 25, or 90 mg/kg) twice daily on days 2-8 post-infection.
View Article and Find Full Text PDFArthritis Res Ther
December 2024
Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA.
Background: Osteoarthritis (OA) is a painful degenerative joint disease and a leading source of years lived with disability globally due to inadequate treatment options. Neuroimmune interactions reportedly contribute to OA pain pathogenesis. Notably, in rodents, macrophages in the DRG are associated with onset of persistent OA pain.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!