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Autoantibodies cause nociceptive sensitization in a mouse model of degenerative osteoarthritis.
Pain
December 2024
Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States.
Previous preclinical and translational studies suggest that tissue trauma related to bony fracture and intervertebral disk disruption initiates the formation of pronociceptive antibodies that support chronic musculoskeletal pain conditions. This study tested this hypothesis in the monosodium iodoacetate (MIA) mouse model of osteoarthritis (OA) and extended the findings using OA patient samples. Monosodium iodoacetate was injected unilaterally into the knees of male and female wild-type (WT) and muMT mice (lacking B cells) to induce articular cartilage damage.
View Article and Find Full Text PDF7--Carboxylic Acid-Substituted 3--Alkyl Difluoroquercetin; An Aztreonam-Potentiating Agent Against Carbapenemase-Producing Through Simultaneous Inhibition of Metallo-β-Lactamase and Efflux Pump.
Antibiotics (Basel)
December 2024
Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea.
Previously, we reported that 3--alkyl difluoroquercetins (di-F-Q) potentiates the antimicrobial activity of aztreonam (ATM) against metallo-β-lactamase (MBL)-producing through simultaneous inhibition of MBLs and efflux pumps. However, the ATM-potentiating activity of the 3--alkyl di-F-Q was observed only at high and potentially toxic concentrations (32 mg/L). As both MBLs and efflux pumps reside in the periplasm of Gram-negative bacteria, their inhibitors should accumulate in the periplasmic space.
View Article and Find Full Text PDFTruncated TrkB: The predominant TrkB Isoform in Nociceptors.
bioRxiv
December 2024
Center for Pain Therapeutics and Addiction Research, School of Dentistry, University of Texas Health San Antonio, Texas, 78229, USA.
Truncated TrkB (TrkBT1), traditionally considered a dominant-negative regulator of full-length TrkB (TrkBTK+), remains poorly understood in peripheral sensory neurons, particularly nociceptors. Furthermore, sensory neuronal TrkB expression and function has been traditionally associated with non-nociceptive neurons, particularly Aδ low-threshold mechanoreceptors. This study challenges prevailing assumptions by demonstrating that TrkBT1 is the predominant TrkB isoform expressed in sensory neurons and plays a functional role in modulating neuronal activity.
View Article and Find Full Text PDFPain in rheumatoid arthritis: Emerging role of high mobility group box 1 protein-HMGB1.
Life Sci
February 2025
Agroprocessing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address:
Rheumatoid arthritis (RA) is a chronic inflammatory disease where pain, driven by both inflammatory and non-inflammatory processes, is a major concern for patients. This pain can persist even after joint inflammation subsides. High mobility group box-1 (HMGB1) is a non-histone-DNA binding protein located in the nucleus that plays a key role in processes such as DNA transcription, recombination, and replication.
View Article and Find Full Text PDFAssessing the Effectiveness of Student-generated Scenario-based Questions as a Tool for Active Learning.
Int J Appl Basic Med Res
November 2024
Department of Physiology, Smt. NHL Municipal Medical College, Ahmedabad, Gujarat, India.
Background: Active learning is not new as an educational philosophy and its benefits over passive learning modes are well known. In a competency-based framework, active learning is one of the key thrust areas. However, across the globe studies have shown that its implementation is wrought with challenges and limitations.
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