Evidence map›Paper›PMID 25355712›Full record

ArticleJournal of diabetes science and technology2014

Effects of hemoglobin variants on hemoglobin a1c values measured using a high-performance liquid chromatography method.

Mercedes Lorenzo-Medina, Silvia De-La-Iglesia, Paloma Ropero, Patricia Nogueira-Salgueiro, Jesus Santana-Benitez

Open access · bronzeAbstract read
In one paragraph

Article in Journal of diabetes science and technology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

22 citing papers in PubMed, 47 citations in OpenAlex.

  1. Trial
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  11. Vulgarin, a Sesquiterpene Lactone fromInternational journal of molecular sciences · 2022
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  16. CE-HPLC Derived P2 and P3-Peaks in Health and in Hb D-Punjab and HbE States.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2021
    Article
  17. Effect of olive leaves extract on the antidiabetic effect of glyburide for possible herb-drug interaction.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2019
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Mercedes Lorenzo-MedinaDepartment of Clinical Chemistry, Hospital Universitario de Gran Canaria Doctor Negrin, Las Palmas de Gran Canaria, Spain mlormed@gmail.com.
Silvia De-La-IglesiaDepartment of Hematology, Hospital Universitario de Gran Canaria Doctor Negrin, Las Palmas de Gran Canaria, Spain.
Paloma RoperoDepartment of Hematology, Hospital Clinico San Carlos, Madrid, Spain.
Patricia Nogueira-SalgueiroDepartment of Clinical Chemistry, Hospital Universitario de Gran Canaria Doctor Negrin, Las Palmas de Gran Canaria, Spain.
Jesus Santana-BenitezDepartment of Clinical Chemistry, Hospital Universitario de Gran Canaria Doctor Negrin, Las Palmas de Gran Canaria, Spain.
Hospital Universitario de Gran Canaria Doctor Negrín · ESHospital Clínico San Carlos · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hemoglobin A1c (HbA1c) is routinely used to monitor long-term glycemic control and for diagnosing diabetes mellitus. However, hemoglobin (Hb) gene variants/modifications can affect the accuracy of some methods. The potential effect of Hb variants on HbA1c measurements was investigated using a high-performance liquid chromatography (HPLC) method compared with an immunoturbimetric assay. Fasting plasma glucose (FPG) and HbA1c levels were measured in 42 371 blood samples. Samples producing abnormal chromatograms were further analyzed to characterize any Hb variants. Fructosamine levels were determined in place of HbA1c levels when unstable Hb variants were identified. Abnormal HPLC chromatograms were obtained for 160 of 42 371 samples. In 26 samples HbS was identified and HbA1c results correlated with FPG. In the remaining 134 samples HbD, Hb Louisville, Hb Las Palmas, Hb N-Baltimore, or Hb Porto Alegre were identified and HbA1c did not correlate with FPG. These samples were retested using an immunoturbidimetric assay and the majority of results were accurate; only 3 (with the unstable Hb Louisville trait) gave aberrant HbA1c results. Hb variants can affect determination of HbA1c levels with some methods. Laboratories should be aware of Hb variants occurring locally and choose an appropriate HbA1c testing method.

Indexed as

Blood GlucoseChromatography, High Pressure LiquidDiabetes MellitusGlycated HemoglobinHemoglobins, AbnormalHumansBlood GlucoseGlycated Hemoglobinhemoglobin A1c protein, humanHemoglobins, Abnormaldiabetesdiagnosisglycated hemoglobinHbA1c

Identifiers

PMID25355712
PMCPMC4455477
OpenAlexW2143073138

What OpenQuestion holds

Textmetadata
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.