Evidence map›Paper›PMID 37976942›Full record

ArticleJournal of chromatography. B, Analytical technologies in the biomedical and life sciences2023

Analysis of D-amino acids secreted from murine islets of Langerhans using Marfey's reagent and reversed phase LC-MS/MS.

Emmanuel O Ogunkunle, Joshua J Davis, Emily L Skinner, James Thornham, Michael G Roper

Open access · greenAbstract read
In one paragraph

Article in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
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

5 authors at 1 institution in 1 country.

Emmanuel O OgunkunleDepartment of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, United States.
Joshua J DavisDepartment of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, United States.
Emily L SkinnerDepartment of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, United States.
James ThornhamProgram in Molecular Biophysics, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, United States.
Michael G RoperDepartment of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, United States; Program in Molecular Biophysics, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, United States. Electronic address: mroper@fsu.edu.
Florida State University · US

Funding

Microfluidic Devices to Determine Roles of Islet-Secreted LeptinR01DK080714 · NIDDK · FLORIDA STATE UNIVERSITY · PI ROPER, MICHAEL GABRIEL · 2008 to 2025
$5.5M
NIDDK NIH HHS R01 DK080714
6 · The paper itself

Abstract

D-amino acids (D-AAs) are important signaling molecules due to their ability to bind ionotropic N-methyl-D-aspartate receptors. D-serine (D-Ser), D-alanine (D-Ala), and D-aspartate (D-Asp) have been found individually in the endocrine portion of the pancreas, the islets of Langerhans, and/or their secretions. However, there has been no report of a comprehensive assessment of D-AAs in islet secretions. To evaluate the release of these compounds, the effectiveness of both 1-(9-fluorenyl)-ethyl chloroformate (FLEC reagent) and 1-fluoro-2,4-dinitrophenyl-5-L-alanine amide (Marfey's reagent, MR) in separation of D/L-AA enantiomeric pairs in islet-specific buffers were evaluated. MR-derivatized D/L AAs showed greater than baseline resolution (Rs ≥ 1.5) of 13 enantiomeric pairs when using a non-linear gradient and an acidic mobile phase system, while FLEC-derivatized AAs exhibited limited resolution on both biphenyl and C18 columns. The optimized MR method yielded highly reproducible separations with retention times less than 1% RSD. Excellent linearity between the analyte concentrations and response (R

Indexed as

Amino AcidsIslets of LangerhansAlanineAnimalsChromatography, High Pressure LiquidChromatography, LiquidDinitrobenzenesFluorenesGlucoseMiceStereoisomerismTandem Mass Spectrometry1-(9-fluorenyl)ethyl chloroformateAlanineAmino AcidsDinitrobenzenesFluorenesGlucoseMarfey's reagentChiral separationD-amino acidsDerivatizationIslets of LangerhansLiquid chromatographyMarfey’s reagentNMDAR

Identifiers

PMID37976942
PMCPMC10843809
OpenAlexW4388570917

What Socratic 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 Socratic graph.