Evaluation of the effect of isoflavona on the cervico-vaginal epithelium and symptoms of Menopause / Avaliação do efeito da isoflavona sobre o epitélio cérvico-vaginal e sintomas da menopausa

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The lack of estrogens characterizes postmenopausal condition and is associated with pathological conditions and symptoms, including atrophic vaginites, osteoporosis and cardiovascular disease. Hormone replacement therapy is recommended for postmenopausal women but there are contraindications and side effects. There are many alternative therapy researches in order to alleviate these symptoms. Soy isoflavone has hormonal effects in postmenopausal women, by binding a common phenolic structure to estrogens receptors. The aim of this study focusing isoflavone, extracted from soy beans Glycine max, was to evaluate the effects of isofavone on vaginal cytology, vaginal maturation index (M.I.), maturation value (M.V.), vaginal microbiota and menopausal symptoms. This study involved 49 postmenopausal women, a randomized double blind placebo controlled. The first group of 23 women was treated with 40 mg/day capsule of placebo (caseyne) and the second group of 26 women was treated with 40 mg/day capsule of isoflavone. Urine and vaginal samples for 3 slides: colpocytogram, wet sample colpocytogram, Gram-stained smears was taken at baseline and after treatment in order to determine M.I., M.V., vaginal microbiological findings and colpocytologic findings. Study participants answered an in-person interview with questions in order to determine menopausal symptoms, complains, menopause perception, sexual life, general health to determine, for instance the Kuppermann menopausal index (KMI) at baseline, every month and after six-months of treatment. The M.I. from traditional colpocytogram reduced significantly the parabasal cells (P=0,003), increased significantly the percentage of Superficial Cianophilic cells (P=0,006), there was a tendence of increasing the Superficial Eosinofilic cells (P=0,18). From wet sample colpocytogram, similar results were obtained: reduced significantly the parabasal cells (P=0,004), increased significantly the percentage of Superficial Cianophilic cells (P=0,008) there was a tendence of increasing the Superficial Eosinofilic cells (P=0,18).. In urocytogram, the results obtained were: reduced significantly the parabasal cells (P=0,008), increased significantly the percentage of Superficial Cianophilic cells (P=0,013), increase of Superficial Eosinofilic cells (P=0,002). For placebo group there were no significative changes. The Maturation Value, M.V. increased significtively (P=0,007) in traditional colpocytogram; in wet sample colpocytogram (P=0,004) and in urocytogram (P=0,0008), comparing with placebo was observed significant decrease (P=0,02) for M.V. After treatment with isoflavone there was significative increase of Döederlein bacillus (P=0,005), decrease of 19,3% in cases of bacterial vaginosis (Nugent score) and decrease of others pathogenic microbial agents. The symptoms decreased significatively in woman treated with placebo and decreased significatively in women treated with isoflavone.

ASSUNTO(S)

isoflavone cervical-vaginal cytology menopause isoflavona menopausa sintomas da menopausa symptoms of menopause citologia cérvico-vaginal

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