Evidence map›Paper›PMID 24934760›Full record

Observational studyInternational journal of clinical pharmacy2014

Proteinuria in adults with sickle-cell disease: the role of hydroxycarbamide(hydroxyurea) as a protective agent.

Geraldo B Silva Junior, Ana Patrícia F Vieira, Amanda X Couto Bem, Marília P Alves, Gdayllon C Meneses, Alice M C Martins, Sonia M H A Araújo, Alexandre V Libório, Elizabeth F Daher

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in International journal of clinical pharmacy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 2 pooled it
1.3field-weighted citation impact, top 20% 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

6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Interventions for chronic kidney disease in people with sickle cell disease.The Cochrane database of systematic reviews · 2023
    Pooled it
  3. Review
  4. Management of Kidney Disease with Sickle Cell Disease.Journal of the American Society of Nephrology : JASN · 2025
    Review
  5. Article
  6. 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 2 institutions in 1 country.

Geraldo B Silva JuniorDepartment of Internal Medicine, School of Medicine, Federal University of Ceará, Rua Vicente Linhares, 1198, Fortaleza, Ceará, CEP 60135-270, Brazil, geraldobezerrajr@yahoo.com.br.
Ana Patrícia F Vieira
Amanda X Couto Bem
Marília P Alves
Gdayllon C Meneses
Alice M C Martins
Sonia M H A Araújo
Alexandre V Libório
Elizabeth F Daher
Universidade Federal do Ceará · BRUniversidade de Fortaleza · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRenal abnormalities are often seen in sickle cell disease (SCD).

objectiveTo investigate the role of hydroxycarbamide as a protective agent in sickle cell nephropathy.

settingPatients with SCD followed at a Hematology outpatients clinic.

methodsProspective study with 26 SCD patients. Renal function evaluation was performed and a comparison between patients and control group was done. Patients using hydroxycarbamide were compared to those not taking this drug.

main outcome measureEffect of hydroxycarbamide on renal function.

resultsPatients mean age was 32.1 ± 9.9 years, and 16 (61 %) were males. Glomerular hyperfiltration was found in nine patients with SCD (34.6 %). GFR < 60 mL/min/1.73 m² was observed in three cases (11.5 %). Microalbuminuria (30-300 mg/day) was found in seven cases (27 %) and macroalbuminuria (>300 mg/dia) in one patient (3.8 %). All patients had urinary concentrating deficit, and inability to acidify urine was found in ten cases (38.4 %). The comparison of patients according to the use of hydroxycarbamide showed lower levels of serum creatinine in those using the drug (0.6 ± 0.1 vs. 0.8 ± 0.3 mg/dL, p = 0.03), as well as lower levels of 24 h-proteinuria (226 ± 16 vs. 414 ± 76 mg/dL, p = 0.0001), but not microalbuminuria (79 ± 15 vs. 55 ± 86 mg/dL, p = 0.35).

conclusionSCD is associated with important renal abnormalities. Hydroxycarbamide seems to protect kidney function in SCD by decreasing proteinuria but not microalbuminuria.

Indexed as

AdultAnemia, Sickle CellAntisickling AgentsBrazilCohort StudiesFemaleGlomerular Filtration BarrierGlomerular Filtration RateHospitals, UniversityHumansHydrogen-Ion ConcentrationHydroxyureaKidneyKidney Concentrating AbilityMaleMiddle AgedAntisickling AgentsHydroxyurea

Identifiers

PMID24934760
OpenAlexW1976453408

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.