Does Breast Feeding Drain Women of Calcium?

Serotonin causes the lactating mammary gland to synthesize and secrete parathyroid hormone-related protein (PTHrP). Tryptophan hydroxylase 1 catalyzes the rate-limiting step in peripheral serotonin synthesis and inactivation reduced sonic hedgehog signaling in the mammary gland during lactation. http://www.medpagetoday.com/Endocrinology/GeneralEndocrinology/48422?xid=nl_mpt_DHE_2014-11-06&utm_content=&utm_medium=email&utm_campaign=DailyHeadlines&utm_source=ST&eun=g721819d0r&userid=721819&email=amydugan2%40gmail.com&mu_id=5883165&utm_term=Daily