ArticleBMC cancer2021
Effects of dezocine on morphine tolerance and opioid receptor expression in a rat model of bone cancer pain.
Article in BMC cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- TRPV1 channel antagonist capsazepine alleviates morphine tolerance and morphine-induced neurotoxicity by preventing mitochondrial damage and apoptosis: an in vivo and in vitro study.Naunyn-Schmiedeberg's archives of pharmacology · 2025Article
- Effect of Dezocine and Dexmedetomidine as Adjuvants in Ropivacaine for Incision Subcutaneous Infiltration Anesthesia on Incision Healing in Diabetic Rats.Brain and behavior · 2025Article
- Revisiting dezocine for opioid use disorder: A narrative review of its potential abuse liability.CNS neuroscience & therapeutics · 2024Review
- Administration of flurbiprofen axetil and dezocine for the postoperative analgesia in patients with non‑small cell lung cancer: A randomized, controlled study.Oncology letters · 2024Article
- The effect of cannabinoid type 2 receptor agonist on morphine tolerance.IBRO neuroscience reports · 2024Review
- The analgesic effects of dezocine in rats with chronic constriction injuries.Experimental animals · 2023Article
- Epigenetic Modulation of Opioid Receptors by Drugs of Abuse.International journal of molecular sciences · 2022Review
- Dezocine Has the Potential to Regulate the Clinical and Biological Features of Tumors.Drug design, development and therapy · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundClinically, the coadministration of opioids to enhance antinociception and decrease tolerance has attracted increasing research attention. We investigated the effects of dezocine, a mu- and kappa-opioid receptor agonist/antagonist, on morphine tolerance and explored the involvement of opioid receptor expression in a rat model of bone cancer pain.
methodsThermal nociceptive thresholds were measured after the subcutaneous injection of morphine (10 mg/kg) alone or combined with dezocine (10 or 1 mg/kg) for 7 consecutive days. Real-time PCR and western blot analysis were used to examine opioid receptor expression in the periaqueductal gray (PAG) and spinal cord.
resultsThe analgesic effect was significantly decreased after 4 days of morphine administration. We observed that low-dose dezocine significantly attenuated morphine tolerance without reducing the analgesic effect of morphine. Low-dose dezocine coadministration significantly reversed the downregulated expression of mu (MOR) and delta (DOR) opioid receptors in the PAG and the upregulated expression of kappa (KOR) and DOR in the spinal cord induced by morphine. Moreover, low-dose dezocine coadministered with morphine significantly inhibited KOR expression in both the PAG and spinal cord.
conclusionsThe combination of low-dose dezocine with morphine may prevent or delay the development of morphine tolerance in a rat model of bone cancer pain. The regulation of opioid receptor expression in the PAG and spinal cord may be part of the mechanism.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.