[Relationship between sex steroids and bone density in elderly men].

Objective: To determine the relationship between serum estradiol level (ESL) and testosterone serum level (TSL) with bone mineral density (BMD) in elderly men.

Methods: Cross-sectional study including 127 healthy men aged 60 years and over. BMD of the lumbar spine and femoral neck were measured.

Adiponectin is associated with low bone mineral density in elderly men.

Objective: Recent evidence suggests that adiponectin may play a role in bone metabolism. Previous studies demonstrated that the adiponectin levels had a negative correlation with bone mineral density (BMD) in women. However, little is known about the relationship between adiponectin and BMD in men.

Effect of testosterone therapy on lumbar spine and hip mineral density in elderly men.

Objective: The aim of the present study was to analyse the effect of testosterone therapy on bone mineral density in healthy elderly men who had low levels of total testosterone.

Design: Randomized, double-blind, placebo-controlled study.

Participants: Forty-eight men over 60 years old with decreased testosterone levels (< or =320 ng/dL) comprised the study.