Evidence map›Paper›PMID 27186105›Full record

ArticleJournal of experimental pharmacology2011

Role of calcium in morphine dependence and naloxone-precipitated withdrawal in mice.

Vikas Seth, Prerna Upadhyaya, Vijay Moghe, Mushtaq Ahmad

Open access · goldAbstract read
In one paragraph

Article in Journal of experimental pharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.4field-weighted citation impact, top 47% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Vikas SethDepartment of Pharmacology, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India.
Prerna UpadhyayaDepartment of Pharmacology, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India.
Vijay MogheDepartment of Pharmacology, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India.
Mushtaq AhmadDepartment of Pharmacology, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India.
Gandhi Medical College & Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo explore the role of calcium in morphine withdrawal syndrome using various agents affecting calcium levels in cytoplasm.

methodsMice were rendered dependent on morphine by subcutaneous injection of morphine, and withdrawal was induced 4 hours later by injecting the opioid antagonist, naloxone. Mice were observed for 30 minutes for signs of withdrawal, ie, characteristic jumping, hyperactivity, urination, and diarrhea. Various calcium channel blockers were injected intraperitoneally 30 minutes before naloxone to evaluate their influence on the severity of the withdrawal syndrome. We also tested the effect of combination levodopa-carbidopa pretreatment and its interaction with a selective alpha-1 blocker, terazosin, on naloxone-precipitated withdrawal in mice acutely dependent on morphine.

resultsA significant dose-dependent attenuation of naloxone-induced morphine withdrawal syndrome was observed with calcium channel blockers, ie, verapamil 20 mg/kg (P < 0.05) and diltiazem 30 mg/kg (P < 0.01). Combination levodopa-carbidopa pretreatment facilitated the morphine withdrawal syndrome, and this was found to be blocked by terazosin, although not to a statistically significant (P > 0.05) extent.

conclusionThe results indicate that calcium plays an important role in the genesis of morphine dependence and withdrawal, and suggest the usefulness of calcium channel blockers in the management of morphine withdrawal syndrome.

Indexed as

calcium channel blockersdiltiazemlevodopa-carbidopa combinationnifedipineopioid abstinenceverapamil

Identifiers

PMID27186105
PMCPMC4863299
OpenAlexW2042796908

What OpenQuestion holds

Textmetadata
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.