Evidence map›Paper›PMID 30854556›Full record

ArticleThe international journal of neuropsychopharmacology2019

One-Year Treatment with Olanzapine Depot in Female Rats: Metabolic Effects.

Kari M Ersland, Lene S Myrmel, Even Fjære, Rolf K Berge, Lise Madsen, Vidar M Steen, Silje Skrede

Open access · goldAbstract read
In one paragraph

Article in The international journal of neuropsychopharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 18% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

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  6. Research progress in the correlation between SREBP/PCSK9 pathway and lipid metabolism disorders induced by antipsychotics.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2023
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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

7 authors at 4 institutions in 2 countries.

Kari M ErslandThe Norwegian Centre for Mental Disorders Research (NORMENT), Department of Clinical Science, University of Bergen, Norway.
Lene S MyrmelInstitute of Marine Research, Bergen, Norway.
Even FjæreInstitute of Marine Research, Bergen, Norway.
Rolf K BergeThe Lipid Research Group, Section for Medical Biochemistry, Department of Clinical Science, University of Bergen, Bergen, Norway.
Lise MadsenInstitute of Marine Research, Bergen, Norway.
Vidar M SteenThe Norwegian Centre for Mental Disorders Research (NORMENT), Department of Clinical Science, University of Bergen, Norway.
Silje SkredeThe Norwegian Centre for Mental Disorders Research (NORMENT), Department of Clinical Science, University of Bergen, Norway.
Haukeland University Hospital · NONorwegian Institute of Marine Research · NOUniversity of Bergen · NOUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAntipsychotic drugs can negatively affect the metabolic status of patients, with olanzapine as one of the most potent drugs. While patients are often medicated for long time periods, experiments in rats typically run for 1 to 12 weeks, showing olanzapine-related weight gain and increased plasma lipid levels, with transcriptional upregulation of lipogenic genes in liver and adipose tissue. It remains unknown whether metabolic status will deteriorate with time.

methodsTo examine long-term metabolic effects, we administered intramuscular long-acting injections of olanzapine (100 mg/kg BW) or control substance to female rats for up to 13 months.

resultsExposure to olanzapine long-acting injections led to rapid weight gain, which was sustained throughout the experiment. At 1, 6, and 13 months, plasma lipid levels were measured in separate cohorts of rats, displaying no increase. Hepatic transcription of lipid-related genes was transiently upregulated at 1 month. Glucose and insulin tolerance tests indicated insulin resistance in olanzapine-treated rats after 12 months.

conclusionOur data show that the continuous increase in body weight in response to long-term olanzapine exposure was accompanied by surprisingly few concomitant changes in plasma lipids and lipogenic gene expression, suggesting that adaptive mechanisms are involved to reduce long-term metabolic adverse effects of this antipsychotic agent in rats.

Indexed as

Adipose TissueAnimalsAnimals, Outbred StrainsAntipsychotic AgentsBlood GlucoseFemaleGlucose Tolerance TestInjections, IntramuscularInsulinInsulin ResistanceLipidsLiverOlanzapineRandom AllocationRats, Sprague-DawleyTime FactorsAntipsychotic AgentsBlood GlucoseInsulinLipidsOlanzapinediabeteslong-termolanzapineratweight gain

Identifiers

PMID30854556
PMCPMC6499254
OpenAlexW2921881983

What Socratic holds

Textmetadata
LicenceCC BY-NC
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 Socratic graph.