The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Human and rat placental tissues contain high levels of melatonin even during daytime. The alteration of placental melatonin suggests that the role of melatonin in the placenta differs from that in the pineal gland. Expression of the gene encoding AA-NAT strongly suggests that placental melatonin was synthesized in the placenta. However, the precise mechanism by which placental melatonin is regulated...