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.
Paracellular pathways in the haemotrichorial placenta of the rat were studied by electron microscopy using lanthanum hydroxide as an electron dense marker. Near term placentae were dually perfused in situ, adding lanthanum to the fetal perfusate. In some placentae outflow pressure on the fetal side was elevated (between 10 and 25cm H 2 O) to promote filtration of fluid in a fetomaternal direction...
Electrical potential difference, PD, was recorded between maternal blood on one side and uterine lumen (transuterine PD), amniotic fluid (amniotic fluid PD), or vitelline blood of the fetus (maternal-fetal PD) on the other side in rats on day 21 of gestation. The values obtained are 2.4 ± 6.0 mV (mean ± s.e.), 11.3 ± 4.5 mV and 9.6 ± 4.1 mV, respectively. Maternal-fetal PD recorded over a period of...