Evidence map›Paper›PMID 27431938›Full record

ArticleBrain research2016

The transporter and permeability interactions of asymmetric dimethylarginine (ADMA) and L-arginine with the human blood-brain barrier in vitro.

Christopher P Watson, Evangelos Pazarentzos, Mehmet Fidanboylu, Beatriz Padilla, Rachel Brown, Sarah A Thomas

Open access · hybridAbstract read
In one paragraph

Article in Brain research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-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

21 citing papers in PubMed, 34 citations in OpenAlex.

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  15. Mechanisms of cognitive dysfunction in CKD.Nature reviews. Nephrology · 2020
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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

6 authors at 2 institutions in 1 country.

Christopher P WatsonKing's College London, Institute of Pharmaceutical Science, Waterloo, London, UK.
Evangelos PazarentzosImperial College London, Experimental Medicine and Toxicology Section, Division of Experimental Medicine, London, UK.
Mehmet FidanboyluKing's College London, Institute of Pharmaceutical Science, Waterloo, London, UK.
Beatriz PadillaKing's College London, Institute of Pharmaceutical Science, Waterloo, London, UK.
Rachel BrownKing's College London, Institute of Pharmaceutical Science, Waterloo, London, UK.
Sarah A ThomasKing's College London, Institute of Pharmaceutical Science, Waterloo, London, UK. Electronic address: sarah.thomas@kcl.ac.uk.
King's College London · GBImperial College London · GB

Funding

Biotechnology and Biological Sciences Research Council BB/E527098/1Biotechnology and Biological Sciences Research Council BBE527098/1Wellcome Trust 080268
6 · The paper itself

Abstract

The blood-brain barrier (BBB) is a biological firewall that carefully regulates the cerebral microenvironment by acting as a physical, metabolic and transport barrier. This selectively permeable interface was modelled using the immortalised human cerebral microvascular endothelial cell line (hCMEC/D3) to investigate interactions with the cationic amino acid (CAA) L-arginine, the precursor for nitric oxide (NO), and with asymmetric dimethylarginine (ADMA), an endogenously derived analogue of L-arginine that potently inhibits NO production. The transport mechanisms utilised by L-arginine are known but they are not fully understood for ADMA, particularly at the BBB. This is of clinical significance giving the emerging role of ADMA in many brain and cerebrovascular diseases and its potential as a therapeutic target. We discovered that high concentrations of ADMA could induce endothelial dysfunction in the hCMEC/D3s BBB permeability model, leading to an increase in paracellular permeability to the paracellular marker FITC-dextran (40kDa). We also investigated interactions of ADMA with a variety of transport mechanisms, comparing the data with L-arginine interactions. Both molecules are able to utilise the CAA transport system y(+). Furthermore, the expression of CAT-1, the best known protein from this group, was confirmed in the hCMEC/D3s. It is likely that influx systems, such as y(+)L and b(0,+), have an important physiological role in ADMA transport at the BBB. These data are not only important with regards to the brain, but apply to other microvascular endothelia where ADMA is a major area of investigation.

Indexed as

ArginineBlood-Brain BarrierCationic Amino Acid Transporter 1Cell LineCell SurvivalEnzyme InhibitorsHumansInterferon-gammaIn Vitro TechniquesNitric OxideOrnithinePermeabilityReactive Oxygen SpeciesSucroseTumor Necrosis Factor-alphaArginineCationic Amino Acid Transporter 1Enzyme InhibitorsInterferon-gammaN(G)-iminoethylornithineNitric OxideN,N-dimethylarginineOrnithineReactive Oxygen SpeciesSLC7A1 protein, humanSucroseTumor Necrosis Factor-alphaCationic amino acid transporter 1Cerebral microvasculatureGuanosine triphosphatases (GTPases)Nitric oxide

Identifiers

PMID27431938
PMCPMC5042357
OpenAlexW2508264259

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.