<prompt> Estrogen administration in a menopausal woman increase the:Gonadotropin secretionLDL cholesterolMuscle massBone mass  <response>: Postmenopausal women run a high-risk fr fracture of bones due to osteoporosis. PTH and IL-1 are involved. Estrogen prevents osteoporosis by inhibiting postdoc mastic activity and inhibits release of IL-1 by monocytes.Increases absorption of calcium from the gut stimulates calcitonin secretion from C cells of thyroid and increases 1,25-dihydroxyvitamin D. All these lead to increased bone mineralisation 