Evidence map›Paper›PMID 23319173›Full record

ArticlePharmaceutical research2013

Brain extracellular γ-hydroxybutyrate concentrations are decreased by L-lactate in rats: role in the treatment of overdoses.

Samuel A Roiko, Nisha Vijay, Melanie A Felmlee, Marilyn E Morris

Abstract read
In one paragraph

Article in Pharmaceutical research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.4field-weighted citation impact, top 23% 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

12 citing papers in PubMed, 20 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.

Samuel A RoikoDepartment of Pharmaceutical Sciences School of Pharmacy and Pharmaceutical Sciences, State University of New York, Buffalo, Buffalo, New York 14214-8033, USA.
Nisha Vijay
Melanie A Felmlee
Marilyn E Morris
University at Buffalo, State University of New York · US

Funding

Gamma-Hydroxybutyrate: Toxicokinetics, Toxicodynamics and Treatment StrategiesR01DA023223 · NIDA · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI MORRIS, MARILYN E · 2008 to 2016
$3.0M
NIDA NIH HHS DA023223NIDA NIH HHS R01 DA023223
6 · The paper itself

Abstract

purposeL-lactate represents a potential treatment for GHB overdose by inhibiting GHB renal reabsorption mediated by monocarboxylate transporters. Our objective was to assess the dose-dependence of L-lactate treatment, with and without D-mannitol, on GHB toxicokinetics/toxicodynamics (TK/TD).

methodsRats were administered GHB 600 mg/kg i.v. with L-lactate (low and high doses), D-mannitol, or L-lactate (low dose) with D-mannitol. GHB-induced sleep time and GHB plasma, urine and brain extracellular fluid (ECF) concentrations (by LC/MS/MS) were determined. The effect of L-lactate and D-mannitol on the uptake and efflux of GHB was assessed in rat brain endothelial RBE4 cells.

resultsL-lactate treatment increased GHB renal clearance from 1.4 ± 0.1 ml/min/kg (control) to 2.4 ± 0.2 and 4.7 ± 0.5 ml/min/kg after low and high doses, respectively, and reduced brain ECF AUC values to 65 and 25% of control. Sleep time was decreased from 137 ± 12 min (control) to 91 ± 16 and 55 ± 5 min (low and high L-lactate, respectively). D-mannitol did not alter GHB TK/TD and did not alter L-lactate's effects on GHB TK/TD. L-lactate, but not D-mannitol, inhibited GHB uptake, and increased GHB efflux from RBE4 cells.

conclusionsL-lactate decreases plasma and brain ECF concentrations of GHB, decreasing sedative/hypnotic effects.

Indexed as

AnimalsBrainCell LineDrug OverdoseHumansHypnotics and SedativesLactic AcidMaleMannitolPermeabilityRatsRats, Sprague-DawleySleepSodium OxybateHypnotics and SedativesLactic AcidMannitolSodium Oxybate

Identifiers

PMID23319173
PMCPMC3618608
OpenAlexW2013234705

What OpenQuestion holds

Textmetadata
LicenceTDM
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.