<prompt> In ovarian cycle increaed levels of LH are due toIncreased ProgesteroneIncreased FSHIncreased AndrogensIncreased Estrogen  <response>: Luteinising Hormone LH is a water-soluble glycoprotein of high molecular weight secreted by beta cells of the anterior pituitary glandLH surge initiated by estrogen lasts for 48 h. LH level doubles up in 2 hrs and peak plateaus for 14 hours before declining.Minimum of 75 ngml is required for ovulation 