Evidence map›Paper›PMID 25119682›Full record

ArticlePediatric nephrology (Berlin, Germany)2015

Hypervitaminosis A is prevalent in children with CKD and contributes to hypercalcemia.

Baheerathi Manickavasagar, Andrew J McArdle, Pallavi Yadav, Vanessa Shaw, Marjorie Dixon, Rune Blomhoff, Graeme O' Connor, Lesley Rees, Sarah Ledermann, William Van't Hoff and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Pediatric nephrology (Berlin, Germany), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 pooled it
0.7field-weighted citation impact, top 30% 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, 3 syntheses or guidelines pooled it, 46 citations in OpenAlex.

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  14. Hypervitaminosis A in Pediatric Patients With Advanced Chronic Kidney Disease.Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation · 2022
    Article
  15. Article
  16. Article
  17. Refractory hypercalcemia owing to vitamin A toxicity in a 4-year-old boy.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2020
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  18. Article
  19. Oxidative Stress in Hemodialysis Pediatric Patients.Open access Macedonian journal of medical sciences · 2019
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  20. 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

11 authors at 2 institutions in 2 countries.

Baheerathi ManickavasagarDepartment of Dietetics, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom.
Andrew J McArdle
Pallavi Yadav
Vanessa Shaw
Marjorie Dixon
Rune Blomhoff
Graeme O' Connor
Lesley Rees
Sarah Ledermann
William Van't Hoff
Rukshana Shroff
Great Ormond Street Hospital for Children NHS Foundation Trust · GBUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVitamin A accumulates in renal failure, but the prevalence of hypervitaminosis A in children with predialysis chronic kidney disease (CKD) is not known. Hypervitaminosis A has been associated with hypercalcemia. In this study we compared dietary vitamin A intake with serum retinoid levels and their associations with hypercalcemia.

methodsWe studied the relationship between vitamin A intake, serum retinoid levels, and serum calcium in 105 children with CKD stages 2-5 on dialysis and posttransplant. Serum retinoid measures included retinol (ROH), its active retinoic acid (RA) metabolites [all-trans RA (at-RA) and 13-cis RA] and carrier proteins [retinol-binding protein-4 (RBP4) and transthyretin (TTR)]. Dietary vitamin A intake was assessed using a food diary.

resultsTwenty-five children were in CKD 2-3, 35 in CKD 4-5, 23 on dialysis and 22 posttransplant; 53 % had vitamin A intake above the Reference Nutrient Intake (RNI) value. Children receiving supplemental feeds compared with diet alone had higher vitamin A intake (p = 0.02) and higher serum ROH (p < 0.001). Notably, increased ROH was seen as early as CKD stage 2. For every 10 ml/min/1.73 m(2) fall in estimated glomerular filtration rate (eGFR), there was a 13 % increase in ROH. RBP4 levels were increased in CKD 3-5 and dialysis patients. The lowest ratios of ROH:RBP4 were seen in dialysis compared with CKD 2-3 (p = 0.03), suggesting a relative increase in circulating RBP4. Serum ROH, RBP4 and at-RA were associated with serum calcium. On multivariable analysis RBP4 levels and alfacalcidol dose were significant predictors of serum calcium (model R (2) 32 %) in dialysis patients.

conclusionsHypervitaminosis A is seen in early CKD, with highest levels in children on supplemental feeds compared with diet alone. Serum retinoid levels significantly predict hypercalcemia.

Indexed as

AdolescentChildChild, PreschoolChromatography, High Pressure LiquidDietFemaleHumansHypercalcemiaHypervitaminosis AInfantMaleRenal Insufficiency, Chronic

Identifiers

PMID25119682
PMCPMC4282719
OpenAlexW2045559513

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Registered trials

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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.