Evidence map›Paper›PMID 28699698›Full record

ArticleJournal of cellular and molecular medicine2017

Reduced dosing and liability in methadone maintenance treatment by targeting oestrogen signal for morphine addiction.

Yao-Chang Chiang, Ruey-Yun Wang, Chieh-Liang Huang, Shue-Hwa Chen, Wen-Jing Ho, Hsien-Yuan Lane, Ing-Kang Ho, Hwei-Ting Yang, Wen-Lung Ma

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 25% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  10. PharmVar GeneFocus: CYP2B6.Clinical pharmacology and therapeutics · 2021
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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

9 authors at 2 institutions in 1 country.

Yao-Chang ChiangCenter for Drug Abuse and Addiction, Brain Disease Research Center, China Medical University, Taichung, Taiwan.
Ruey-Yun WangCenter for Drug Abuse and Addiction, Brain Disease Research Center, China Medical University, Taichung, Taiwan.
Chieh-Liang HuangCenter for Drug Abuse and Addiction, Brain Disease Research Center, China Medical University, Taichung, Taiwan.
Shue-Hwa ChenSex Hormone Research Center, China Medical University Hospital, Taichung, Taiwan.
Wen-Jing HoSex Hormone Research Center, China Medical University Hospital, Taichung, Taiwan.
Hsien-Yuan LaneCenter for Drug Abuse and Addiction, Brain Disease Research Center, China Medical University, Taichung, Taiwan.
Ing-Kang HoCenter for Drug Abuse and Addiction, Brain Disease Research Center, China Medical University, Taichung, Taiwan.
Hwei-Ting YangGraduate Institution of Clinical Medical Science, China Medical University, Taichung, Taiwan.
Wen-Lung MaCenter for Drug Abuse and Addiction, Brain Disease Research Center, China Medical University, Taichung, Taiwan.ORCID http://orcid.org/0000-0002-5571-3302
China Medical University · TWAsia University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methadone maintenance treatment (MMT) is the major tapering therapy for morphine addictive patients. There have gender differences reported in response to MMT. This study discovered that the estrogen-response element single nucleotide polymorphism (ERE-SNP; rs16974799, C/T) of cytochrome 2B6 gene (cyp2b6; methadone catabolic enzyme) responded differently to MMT dosing. Oestradiol was associated with high MMT dosing, high enantiomer (R- or S-) of 2-ethylidene-1,5-dimethyl-3,3-dipheny-pyrrolidine (EDDP; methadone metabolite) to methadone ratio and increased drug-seeking behaviour, implicating oestradiol-CYP-EDDP/methadone axis decreasing MMT efficacy. In mouse model, oestrogen mitigates methadone antinociceptive response, facilitates methadone catabolism and up-regulates methadone-associated metabolizing enzymes. Oestrogen also ablates chronic methadone administration-induced rewarding response. Mechanism dissection revealed the CC genotype of CYP2B6-ERE-SNP exerts higher ERE sequence alignment score, higher estrogenic response as compared to TT genotype. At last, preclinical study via targeting estrogen signal that tamoxifen (TMX; selective estrogen receptor modulator, SERM) could facilitate the tolerance phase rewarding response of methadone. Strikingly, TMX also reduces tapering/abstinence phases methadone liability in mice. In conclusion, this study demonstrates altering methadone metabolism through targeting estrogen signals might be able to free morphine addictive patients from the addiction of opioid replacement therapy. Therefore, the add-on therapy clinical trial introducing SERM in MMT regimen is suggested.

Indexed as

AdultAnimalsCytochrome P-450 CYP2B6EstradiolEstrogen AntagonistsFemaleGene Expression RegulationHumansMaleMethadoneMiceMice, Inbred C57BLMorphine DependenceOpiate Substitution TreatmentOvariectomyPolymorphism, Single Nucleotide2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidineCYP2B6 protein, humanCytochrome P-450 CYP2B6EstradiolEstrogen AntagonistsMethadonePyrrolidinesTamoxifenestrogenmethadone maintenance treatmentopiate addictiontamoxifen

Identifiers

PMID28699698
PMCPMC5706516
OpenAlexW2734586326

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.