Evidence map›Paper›PMID 36430602›Full record

ReviewInternational journal of molecular sciences2022

The Impact of P-Glycoprotein on Opioid Analgesics: What's the Real Meaning in Pain Management and Palliative Care?

Flaminia Coluzzi, Maria Sole Scerpa, Monica Rocco, Diego Fornasari

Open access · goldAbstract readReview
In one paragraph

Review in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.5field-weighted citation impact, top 8% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Associations ofPharmaceuticals (Basel, Switzerland) · 2026
    Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Reversing Morphine Induced Tolerance: Insights Into Cetirizine and Green Tea Extract Efficacy.Current therapeutic research, clinical and experimental · 2025
    Article
  13. Article
  14. Opioid system and related ligands: from the past to future perspectives.Journal of anesthesia, analgesia and critical care · 2024
    Review
  15. Opioid Use and Gut Dysbiosis in Cancer Pain Patients.International journal of molecular sciences · 2024
    Review
  16. Article
  17. Review
  18. Review
  19. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Flaminia ColuzziDepartment Medical and Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, 04100 Latina, Italy.ORCID 0000-0001-7184-5519
Maria Sole ScerpaUnit of Anaesthesia, Intensive Care, and Pain Medicine, Sant'Andrea University Hospital, 00189 Rome, Italy.
Monica RoccoUnit of Anaesthesia, Intensive Care, and Pain Medicine, Sant'Andrea University Hospital, 00189 Rome, Italy.ORCID 0000-0001-8380-3607
Diego FornasariDepartment of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, 20129 Milan, Italy.
Sapienza University of Rome · ITUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Opioids are widely used in cancer and non-cancer pain management. However, many transporters at the blood-brain barrier (BBB), such as P-glycoprotein (P-gp, ABCB1/MDR1), may impair their delivery to the brain, thus leading to opioid tolerance. Nonetheless, opioids may regulate P-gp expression, thus altering the transport of other compounds, namely chemotherapeutic agents, resulting in pharmacoresistance. Other kinds of painkillers (e.g., acetaminophen, dexamethasone) and adjuvant drugs used for neuropathic pain may act as P-gp substrates and modulate its expression, thus making pain management challenging. Inflammatory conditions are also believed to upregulate P-gp. The role of P-gp in drug-drug interactions is currently under investigation, since many P-gp substrates may also act as substrates for the cytochrome P450 enzymes, which metabolize a wide range of xenobiotics and endobiotics. Genetic variability of the ABCB1/MDR1 gene may be accountable for inter-individual variation in opioid-induced analgesia. P-gp also plays a role in the management of opioid-induced adverse effects, such as constipation. Peripherally acting mu-opioid receptors antagonists (PAMORAs), such as naloxegol and naldemedine, are substrates of P-gp, which prevent their penetration in the central nervous system. In our review, we explore the interactions between P-gp and opioidergic drugs, with their implications in clinical practice.

Indexed as

Analgesics, OpioidATP Binding Cassette Transporter, Subfamily B, Member 1Pain ManagementAnalgesicsATP Binding Cassette Transporter, Subfamily BDrug ToleranceHumansPalliative CareAnalgesicsAnalgesics, OpioidATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily B, Member 1ATP-binding cassettesblood brain barrierchronic paindrug-drug interactionsinflammationneuropathic painopioidsPAMORAsP-glycoproteinpolymorphisms

Identifiers

PMID36430602
PMCPMC9695906
OpenAlexW4309153919

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.