The relationship between oxytocin and human sexual response is unclear. At least two non-controlled studies have found increases in plasma oxytocin at orgasm – in both men and women.1718 The authors of one of these studies speculated that oxytocin’s effects on muscle contractibility may facilitate sperm and egg transport.19 Murphy et al. (1987), studying men, found that oxytocin levels were raised throughout sexual arousal and there was no acute increase at orgasm.20 A more recent study of men found an increase in plasma oxytocin immediately after orgasm, but only in a portion of their sample that did not reach statistical significance. The authors noted that these changes “may simply reflect contractile properties on reproductive tissue.”21
Provide a record of any correspondence between ASADA staff and the World Anti-Doping Authority containing the keywords:  "Thymosin", "Thymosin Beta 4", "TB-500", "TB500", "TB4" or "Thymomodulin" between June 2011 and September 2013. Provide audit logs showing the date upon which Thymosin Beta 4 was published as a banned substance on the check your substances website. Provide a log of all receipts (provided online or by telephone) given to athletes in response to requests containing the keywords "Thymosin", "Thymosin Beta 4", "TB-500", "TB500", "TB4" or "Thymomodulin" between June 2011 and September 2013.
The cornea is the outer thin layer of epithelial cells protecting the eye. After wounding, timely resurfacing of the cornea with new cells is critical, to prevent loss of normal function and loss of vision. Corneal epithelial healing occurs in stages, with cells migrating, dividing and differentiating. Therapies for corneal injury are limited. Therefore, the recent finding that Tb4 promotes corneal wound repair in animal models offers hope for a therapeutic product that will improve the clinical outcome of patients with injured corneas.

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Down syndrome. Some research shows that giving 5-HTP to infants with Down syndrome might improve muscle and activity. Other research shows that it does not improve muscle or development when taken from infancy until 3-4 years of age. Research also shows that taking 5-HTP along with conventional prescription drugs does improve development, social skills, or language skills.