Results 41 to 50 of about 397,909 (400)

Significance of Metabolite Ratios in the Interpretation of Segmental Hair Testing Results—Differentiation of Single from Chronic Morphine Use in a Case Series

open access: yesMetabolites, 2021
In morphine intoxication cases, forensic toxicologists are frequently confronted with the question of if the individual was opioid-tolerant or opioid-naïve, which can be investigated by hair analysis. However, interpretation of results can be challenging.
Milena M. Madry   +4 more
doaj   +1 more source

Amniotic-Fluid Ingestion Enhances\ud Morphine Analgesia During Morphine\ud Tolerance and Withdrawal in Rats [PDF]

open access: yes, 1991
Ingestion of placenta and amniotic fluid has been shown to enhance opioid-mediated analgesia in rats produced by morphine injection. footshock, vaginal/cervical stimulation, and during late pregnancy.
Doerr, Jean C., Kristal, Dr. Mark B.
core  

Delta Opioid Receptors within the Cortico‐Thalamic Circuitry Underlie Hyperactivity Induced by High‐Dose Morphine

open access: yesAdvanced Science, EarlyView.
Morphine activates the excitatory cingulate cortex–intermediate rostrocaudal division of zona incerta (Cg‐ZIm) pathway to drive hyperlocomotion in mice. Inhibiting the Cg‐ZIm pathway attenuates both acute and chronic morphine‐induced hyperlocomotion, while its activation mimics morphine's motor effects.
Chun‐Yue Li   +13 more
wiley   +1 more source

Resveratrol reverses morphine-induced neuroinflammation in morphine-tolerant rats by reversal HDAC1 expression

open access: yesJournal of the Formosan Medical Association, 2016
We previously showed that subsequent intrathecal (i.t.) injection of resveratrol (30 μg) significantly reverses morphine-evoked neuroinflammation in morphine-tolerant rats. The present study examined the underlying mechanism.
Ru-Yin Tsai   +4 more
doaj   +1 more source

M3 muscarinic acetylcholine receptor facilitates the endocytosis of mu opioid receptor mediated by morphine independently of the formation of heteromeric complexes [PDF]

open access: yes, 2017
Morphine inefficiency to induce the internalization of mu opioid (MOP) receptors observed in numerous experimental models constitutes a paradigm of G-protein coupled receptor (GPCR) functional selectivity.
Alvarez-Curto, Elisa   +2 more
core   +1 more source

Morphine promotes cancer stem cell properties, contributing to chemoresistance in breast cancer

open access: yesOncoTarget, 2015
Morphine is an opioid analgesic drug commonly used for pain relief in cancer patients. Here, we report that morphine enhances the mammosphere forming capacity and increases the expression of stemness-related transcription factors Oct4, Sox2 and Nanog ...

semanticscholar   +1 more source

Astrocytic PCBP1 Suppresses Ferroptosis to Restore Glutamatergic Homeostasis and Mitigate Stress‐Induced Depression in Male Mice

open access: yesAdvanced Science, EarlyView.
This study demonstrates that polyC‐RNA‐binding protein 1 (PCBP1) in ventral hippocampal astrocytes modulates depressive‐like behaviors by regulating glutathione peroxidase 4‐mediated ferroptosis and synaptic glutamatergic transmission. PCBP1 overexpression intervention in the chronic unpredictable mild stress model rescues behavioral deficits ...
Jinyu Zhang   +15 more
wiley   +1 more source

Morphine hyperalgesia gated through microglia-mediated disruption of neuronal Cl− homeostasis

open access: yesNature Neuroscience, 2013
A major unresolved issue in treating pain is the paradoxical hyperalgesia produced by the gold-standard analgesic morphine and other opiates. We found that hyperalgesia-inducing treatment with morphine resulted in downregulation of the K+-Cl− co ...
F. Ferrini   +16 more
semanticscholar   +1 more source

Efficacy of Local Bupivacaine Injection of Postoperative Pain in Endoscopic Sinus Surgery

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Regional anesthesia is effective in alleviating postoperative pain and reducing the requirement for systemic pain medications. However, optimal postoperative pain management in endoscopic sinus surgery (ESS) remains challenging.
Wiracha Leewannapasai   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy