Evidence map›Paper›PMID 29305823›Full record

ArticlePharmaceutical research2018

Semi-Mechanistic Population Pharmacokinetic Modeling of L-Histidine Disposition and Brain Uptake in Wildtype and Pht1 Null Mice.

Xiao-Xing Wang, Yang-Bing Li, Meihua R Feng, David E Smith

Abstract read
In one paragraph

Article in Pharmaceutical research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 36% 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

4 citing papers in PubMed, 9 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.

Xiao-Xing WangDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan, 48109-1065, USA.
Yang-Bing LiDepartment of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, Michigan, 48109, USA.
Meihua R FengDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan, 48109-1065, USA.
David E SmithDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, 428 Church Street, Ann Arbor, Michigan, 48109-1065, USA. smithb@med.umich.edu.
University of Michigan–Ann Arbor · US

Funding

Novel Transport and Activation Strategy to Improve the Bioavailability of Targeted ProdrugsR01GM115481 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI AMIDON, GORDON L, SMITH, DAVID E · 2015 to 2018
$1.7M
NIGMS NIH HHS R01 GM115481NIGMS NIH HHS R01GM115481
6 · The paper itself

Abstract

purposeTo develop a semi-mechanistic population pharmacokinetic (PK) model to quantitate the disposition kinetics of L-histidine, a peptide-histidine transporter 1 (PHT1) substrate, in the plasma, cerebrospinal fluid and brain parenchyma of wildtype (WT) and Pht1 knockout (KO) mice.

methodsL-[

resultsThe PK profile of L-His was best described by a four-compartment model. A more rapid uptake of L-His in brain parenchyma was observed in WT mice due to PHT1-mediated uptake, a process characterized by a Michaelis-Menten component (V

conclusionsA semi-mechanistic population PK model was successfully developed, for the first time, to quantitatively characterize the disposition kinetics of L-His in brain under in vivo conditions. This model may prove a useful tool in predicting the uptake of L-His, and possibly other PHT1 peptide/mimetic substrates, for drug delivery to the brain.

Indexed as

AnimalsBiological TransportBlood-Brain BarrierBody FluidsBrainHistidineHumansKineticsMembrane Transport ProteinsMice, Inbred C57BLMice, KnockoutModels, BiologicalParenchymal TissueTissue DistributionHistidineMembrane Transport ProteinsSlc15a4 protein, mousebrain parenchymaL-histidinemicePHT1population pharmacokinetics

Identifiers

PMID29305823
PMCPMC5826761
OpenAlexW2781811963

What OpenQuestion holds

Textmetadata
LicenceTDM
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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.