This is cross-over, randomized clinical trial, with objective to evaluate the effects of low-dose oral hormone therapy and non-oral hormone therapy on endothelial function markers (fibrinogen, von Willebrand factor, c-reactive protein), natriuretic peptide and on anthropometric, metabolic and hormonal variables in early and healthy postmenopausal women and analyzing polymorphisms in the estrogen receptor gene and FTO polymorphisms Patients will be randomized to receive oral hormone treatment or non-oral hormone treatment The investigators hypothesis is that a different genotypes in the receptor estrogen gene and FTO may have an influences on treatment response in metabolic markers and cardiovascular risk
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
90
3 mg/day intranasal estradiol daily or 1,5 mg/day transdermal estradiol and 200 mg/day vaginal micronized progesterone for 14 days/month
oral estradiol 1mg and drospirenone 2 mg/day
Hospital de Clínicas de Porto Alegre
Porto Alegre, Rio Grande do Sul, Brazil
Polymorphisms of estrogen receptor
Influence of 4 polymorphisms (PVUII, ALUI, RSAI and BSTUI) on the effect of different treatment regimens. Change from Baseline in weight, waist circumference, BMI, systolic and diastolic blood pressure, fasting glucose, glucose at 120 min, Fasting insulin, HOMA, Cholesterol, HDL-c, LDL-c, Triglycerides, Von Willebrand Factor, Fibrinogen, Testosterone and C-reactive protein at six months.
Time frame: six months
Polymorphisms in the fat mass-and obesity-associated (FTO) gene
Influence of 2 polymorphisms (rs9939609 and rs8050136) on the effect of different treatment regimens. Change from Baseline in weight, waist circumference, BMI, systolic and diastolic blood pressure, fasting glucose, glucose at 120 min, Fasting insulin,HOMA, Cholesterol, HDL-c, LDL-c, Triglycerides, Von Willebrand Factor, Fibrinogen, Testosterone and C-reactive protein at six months.
Time frame: Six Months
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