Evidence map›Paper›PMID 37084126›Full record

ArticleGlycoconjugate journal2023

Analysis of the intramolecular 1,7-lactone of N-acetylneuraminic acid using HPLC-MS: relationship between detection and stability.

Paolo La Rocca, Ivana Lavota, Marco Piccoli, Federica Cirillo, Andrea Ghiroldi, Giuseppe Ciconte, Carlo Pappone, Pietro Allevi, Paola Rota, Luigi Anastasia

Open access · hybridAbstract read
In one paragraph

Article in Glycoconjugate journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 43% 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

2 citing papers in PubMed, 1 citations in OpenAlex.

  1. A bidirectionalbioRxiv : the preprint server for biology · 2026
    Article
  2. Article
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

10 authors at 3 institutions in 1 country.

Paolo La RoccaDepartment of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, 20133, Italy.
Ivana LavotaInstitute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy.
Marco PiccoliInstitute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy.
Federica CirilloInstitute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy.
Andrea GhiroldiInstitute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy.
Giuseppe CiconteInstitute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy.
Carlo PapponeInstitute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy.
Pietro AlleviDepartment of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, 20133, Italy.
Paola RotaInstitute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy. paola.rota@unimi.it.
Luigi AnastasiaInstitute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, Milan, 20097, Italy. luigi.anastasia@hsr.it.
IRCCS Policlinico San Donato · ITUniversity of Milan · ITVita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A subclass of the sialic acid family consists of intramolecular lactones that may function as key indicators of physiological and pathological states. However, the existence of these compounds in free form is highly improbable, since they are unlikely to exist in an aqueous solution due to their lability. Current analytical method used to detect them in biological fluids has not recognized their reactivity in solution and is prone to misidentification. However, recent advances in synthetic methods for 1,7-lactones have allowed the preparation of these sialic acid derivatives as authentic reference standards. We report here the development of a new HPLC-MS method for the simultaneous detection of the 1,7-lactone of N-acetylneuraminic acid, its γ-lactone derivative, and N-acetylneuraminic acid that overcomes the limitations of the previous analytical procedure for their identification.

Indexed as

N-Acetylneuraminic AcidSialic AcidsChromatography, High Pressure LiquidLactonesLactonesN-Acetylneuraminic AcidSialic Acids1,7-lactoneHPLC–MS analysisN-acetylneuraminic acidSialic acidsγ-lactone

Identifiers

PMID37084126
PMCPMC10202997
OpenAlexW4366603590

What Socratic 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 Socratic graph.