Effects of Brazilian green propolis on proteinuria and renal function in patients with chronic kidney disease: a randomized, double-blind, placebo-controlled trial

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art_SILVEIRA_Effects_of_Brazilian_green_propolis_on_proteinuria_and_2019.PDF (1.3 MB)
Citações na Scopus
73
Tipo de produção
article
Data de publicação
2019
DOI
Scopus
Web of Science
PubMed
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Título do Volume
Editora
BMC
Autores
TELES, Flavio
BERRETTA, Andressa A.
Citação
BMC NEPHROLOGY, v.20, article ID 140, 12p, 2019
Projetos de Pesquisa
Unidades Organizacionais
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Resumo
BackgroundChronic kidney disease (CKD) is a public health problem worldwide, and proteinuria is a well-established marker of disease progression in CKD patients. Propolis, a natural resin produced by bees from plant materials, has anti-inflammatory, immunomodulatory, and anti-oxidant properties, as well as having been shown to have an antiproteinuric effect in experimental CKD. The aim of this study was to evaluate the impact of Brazilian green propolis extract on proteinuria reduction and the changes in the estimated glomerular filtration rate (eGFR).MethodsThis was a randomized, double-blind, placebo-controlled study including patients with CKD caused by diabetes or of another etiology, 18-90years of age, with an eGFR of 25-70ml/min per 1.73m(2) and proteinuria (urinary protein excretion >300mg/day) or micro- or macro-albuminuria (urinary albumin-to-creatinine ratio>30mg/g or>300mg/g, respectively). We screened 148 patients and selected 32, randomly assigning them to receive 12months of Brazilian green propolis extract at a dose of 500mg/day (n=18) or 12months of a placebo (n=14).ResultsAt the end of treatment, proteinuria was significantly lower in the propolis group than in the placebo group695mg/24h (95% CI, 483 to 999) vs. 1403mg/24h (95% CI, 1031 to 1909); P=0.004independent of variations in eGFR and blood pressure, which did not differ between the groups during follow-up. Urinary monocyte chemoattractant protein-1 was also significantly lower in the propolis group than in the placebo group58pg/mg creatinine (95% CI, 36 to 95) vs. 98pg/mg creatinine (95% CI, 62 to 155); P=0.038.ConclusionsBrazilian green propolis extract was found to be safe and well tolerated, as well as to reduce proteinuria significantly in patients with diabetic and non-diabetic CKD.Trial Registration.(ClinicalTrials.gov number NCT02766036. Registered: May 9, 2016).
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URI
https://observatorio.fm.usp.br/handle/OPI/31584
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MCM
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - LIM/12
Artigos e Materiais de Revistas Científicas - ODS/03