The effect of adjuvant vitamin C after varicocele surgery on sperm quality and quantity in infertile men: a double blind placebo controlled clinical trial
Int. braz. j. urol
; 41(2): 230-238, Mar-Apr/2015. tab
Artigo
em Inglês
| LILACS
| ID: lil-748295
Biblioteca responsável:
BR1.1
ABSTRACT
Varicocele is one of the most common causes of male infertility and spontaneous pregnancy rate after varicocelectomy is only about 30%. The most important seminal antioxidant is vitamin C but recent studies about the effects of vitamin C on spermatogenesis are controversial; therefore, we decided to evaluate its role after varicocelectomy. In a double blind randomized controlled clinical trial, 115 men with infertility and clinical varicocele with abnormal semen analyses were recruited. After surgery, the intervention group received vitamin C (250 mg bid) and the control group received placebo for three months. Mean sperm count, motility, and morphology index of two semen analyses (before and after surgery) were compared between the two groups. Univariate general linear model and stepwise linear regression were used in analysis. The mean age (±SD) of participants was 27.6±5.3 years. Vitamin C group had statistically significant better normal motility (20.8 vs. 12.6, P=0.041) and morphology (23.2 vs. 10.5, P<0.001) than placebo group. Considering the values prior to surgery as covariate, vitamin C was not effective on sperm count (P=0.091); but it improved sperm motility (P=0.016) and morphology (P<0.001) even after excluding the confounding effect of age (P=0.044 and P=0.001, respectively). Vitamin C was also an independent factor in predicting motility and normal morphology after surgery. Ascorbic acid can play a role as adjuvant treatment after varicocelectomy in infertile men.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Contexto em Saúde:
Agenda de Saúde Sustentável para as Américas
/
ODS3 - Saúde e Bem-Estar
Problema de saúde:
Objetivo 9: Redução de doenças não transmissíveis
/
Meta 3.4: Reduzir as mortes prematuras devido doenças não transmissíveis
Base de dados:
LILACS
Assunto principal:
Transdução de Sinais
/
Redes Reguladoras de Genes
/
Neoplasias
Tipo de estudo:
Ensaio clínico controlado
/
Estudo prognóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Int. braz. j. urol
Assunto da revista:
Urologia
Ano de publicação:
2015
Tipo de documento:
Artigo
País de afiliação:
Irã
Instituição/País de afiliação:
Arak University of Medical Sciences/IR