Evidence map›Paper›PMID 30976410›Full record

ArticleClinical kidney journal2019

Vitamin D, bone alkaline phosphatase and parathyroid hormone in healthy subjects and haemodialysed patients from West Africa: impact of reference ranges and parathyroid hormone generation assays on the KDIGO guidelines.

Etienne Cavalier, Eric Sagou Yayo, Marie-Laure Attoungbre-Hauhouot, Jean-Louis Konan, Carine Yao-Yapo, Dagui Monnet, Appolinaire Gnionsahé, Jean-Claude Souberbielle, Pierre Delanaye

Open access · goldAbstract read
In one paragraph

Article in Clinical kidney journal, 2019. 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
0.6field-weighted citation impact, top 33% 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, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. 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

9 authors at 5 institutions in 3 countries.

Etienne CavalierDepartment of Clinical Chemistry, University of Liège, CHU de Liège, Liège, Belgium.
Eric Sagou YayoDépartement de Biochimie, UFR Sciences Pharmaceutiques et Biologiques, University Felix Houphouet Boigny, Abidjan, Côte d'Ivoire.
Marie-Laure Attoungbre-HauhouotDépartement de Biochimie, UFR Sciences Pharmaceutiques et Biologiques, University Felix Houphouet Boigny, Abidjan, Côte d'Ivoire.
Jean-Louis KonanDépartement de Biochimie, UFR Sciences Pharmaceutiques et Biologiques, University Felix Houphouet Boigny, Abidjan, Côte d'Ivoire.
Carine Yao-YapoDépartement de Biochimie, UFR Sciences Pharmaceutiques et Biologiques, University Felix Houphouet Boigny, Abidjan, Côte d'Ivoire.
Dagui MonnetDépartement de Biochimie, UFR Sciences Pharmaceutiques et Biologiques, University Felix Houphouet Boigny, Abidjan, Côte d'Ivoire.
Appolinaire GnionsahéService d'Hémodialyse Publique de Côte d'Ivoire, Abidjan, Côte d'Ivoire.
Jean-Claude SouberbielleLaboratoire d'Explorations Fonctionnelles, Hôpital Necker-Enfants Malades, Paris, France.
Pierre DelanayeDepartment of Nephrology, Dialysis and Transplantation, University of Liège, CHU de Liège, Liège, Belgium.ORCID 0000-0002-1480-5761
Institut Universitaire d'Abidjan · CISociété de Développement des Forêts · CIUniversity of Liège · BEHôpital Necker-Enfants Malades · FRUniversité Félix Houphouët-Boigny · CI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Kidney Disease: Improving Global Outcomes (KDIGO) guidelines recommend targets based on multiples of the upper limit of normal (ULN) of parathyroid hormone (PTH) concentration. However, the ULN has not always been correctly established by manufacturers. While it is known that the ULN is supposed to be higher in African Americans than in Caucasians, it is largely unknown in Africans.

methodsWe established the ULN of PTH concentration in a population of 240 healthy Ivorians using second- and third-generation PTH assays before and after supplementation with 100 000 IU of cholecalferol. We measured the levels of PTH, bone alkaline phosphatase, 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D in 100 haemodialysed Ivorian patients.

resultsThe prevalence of vitamin D deficiency in Ivory Coast is low. The ULN obtained using the third-generation PTH assay was similar to that obtained in Caucasians but was higher when PTH was measured using the second-generation PTH assay. According to the KDIGO guidelines, ∼20% of the haemodialysed patients were below twice the ULN and 30% were above nine times the ULN. Approximately 25% of the patients were even >12 times the ULN. We observed a discrepancy in the results between the two PTH assays (14%) that was relatively more important than what we observed from previous studies in Caucasians using the same strategy.

conclusionsWe found a low prevalence of vitamin D deficiency in a tropical country like Ivory Coast. We also established the PTH reference range, which could prove useful for the follow-up of haemodialysed patients, particularly for the large number of patients suffering from secondary hyperparathyroidism who are at high risk of adverse bone events.

Indexed as

bone alkaline phosphatasehaemodialysisparathyroid hormonereference rangevitamin D

Identifiers

PMID30976410
PMCPMC6452202
OpenAlexW2891379470

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.