J Mol Neurosci
Department of Anestyesiology, HuiZhou Municipal Central Hospital, No. 41, Eling North Road, Huizhou City, Guangdong Province, 516001, China.
Published: May 2022
Morphine is generally used to treat chronic pain in clinic. But long-term use of morphine can inevitably induce analgesic tolerance and hyperalgesia. Caveolin-1 is reported to affect morphine-mediated signaling transduction. However, the action mechanism of morphine-induced analgesic tolerance is still unknown. In this study, morphine-induced analgesic tolerance model was established in Sprague-Dawley rats. The effects of Caveolin-1 blocking on neuroinflammation and ERK/c-JUN pathway were then explored. Morphine can remarkably elevate the expression level of Caveolin-1. Based on paw withdrawal latency behavior test, we found that Caveolin-1 blocking can effectively attenuate morphine-induced analgesic tolerance and neuroinflammation. Activation of ERK/c-JUN significantly reversed the above influences caused by Caveolin-1 blocking. Taken together, blocking of Caveolin-1 can attenuate morphine-induced inflammation and analgesic tolerance through inhibiting NLRP3 inflammasome and ERK/c-JUN pathway.
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http://dx.doi.org/10.1007/s12031-022-01989-w | DOI Listing |
Proc Natl Acad Sci U S A
January 2025
Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405.
Dysregulation of GABAergic inhibition is associated with pathological pain. Consequently, enhancement of GABAergic transmission represents a potential analgesic strategy. However, therapeutic potential of current GABA agonists and modulators is limited by unwanted side effects.
View Article and Find Full Text PDFEur J Obstet Gynecol Reprod Biol
December 2024
Ruth and Bruce Rappaport, Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel; Department of Obstetrics and Gynecology, Carmel Medical Center, Haifa, Israel.
Introduction: The rising prevalence of pelvic organ prolapse (POP) in the aging population underscores the need to reevaluate treatment options. This study examines obliterative procedures, specifically colpocleisis performed with (CH) and without (C) concomitant vaginal hysterectomy, as management strategies for frail, non-sexually active elderly patients with advanced prolapse.
Methods: This retrospective study analyzed data from patients who underwent either colpocleisis with concomitant vaginal hysterectomy (CH) or colpocleisis alone (C) at our institution between 2006 and 2020.
JCO Oncol Pract
January 2025
Division of Medical Oncology, Yonsei Cancer Center, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
Purpose: Patient-controlled analgesia (PCA) has been considered for managing cancer pain; however, limited research has been conducted on optimizing continuous infusion rates with PCA. This study aimed to evaluate the efficacy and safety of a method that optimizes background infusion (BI) alongside PCA for titrating intravenous (IV) morphine in managing cancer-related pain.
Methods: Forty-four patients with solid tumors who could not manage pain with oral or transdermal opioid analgesics were randomly assigned in a 1:1 ratio to receive IV morphine through PCA or the conventional method.
Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
December 2024
Department of Nursing, Guizhou Provincial People's Hospital, Guiyang 550004, Guizhou, China. Corresponding author: Yao Huan, Email:
Objective: To investigate the current status and influencing factors of feeding intolerance (FI) during enteral nutrition (EN) in intensive care unit (ICU) patients.
Methods: A retrospective case-control study was conducted, including patients from two ICU wards of a tertiary hospital in Guizhou Province from July 2019 to December 2022. Clinical data were collected using a self-designed data collection form, including general information [age, gender, acute physiology and chronic health evaluation II (APACHE II)], clinical treatment (mechanical ventilation, mild hypothermia therapy), medication use (vasoactive drugs, glucocorticoids, analgesics, sedatives), EN implementation (types of EN fluids, EN methods, tube feeding rate), EN tolerance, and blood glucose status.
J Opioid Manag
January 2025
Harvard Medical School; MGH/Harvard Center for Addiction Medicine, Massachusetts General Hospital; Addiction Leadership, Charlestown Community Health Care Center for Pain Management; HOME BASE Veterans and Family Care, Boston, Massachusetts.
Buprenorphine was synthesized in the 1960s as a result of a search for a safe and effective opioid analgesic. Present formulations of buprenorphine are approved for the treatment of both acute and chronic pain. Its long duration of action, high affinity, and partial agonism at the µ-opioid receptor have established it as a mainstay treatment for opioid use disorder (OUD).
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