Chronic in situ monitoring of the free calcium ion concentration in the uterine tubes and horns of the sheep.
1. A system was developed for the chronic implantation of Ca2+ selective electrodes in the uterine horns and tubes of ovariectomised ewe. 2. Recordings were made over a 3-week period. 3. Resting free [Ca2+] was of the order of 1 mM. 4. Progesterone increased only the uterine horn [Ca2+], whereas oestrogen caused a transient rise only in the tubal [Ca2+].
Ward
J P
JP
Division of Medicine, United Medical and Dental Schools, St Thomas' Hospital, London, UK.
Watson
P F
PF
Noakes
D E
DE
D000818:Animals; D002118:Calcium / Q000378:metabolism*; D004958:Estradiol / Q000494:pharmacology; D005187:Fallopian Tubes / Q000187:drug effects / Q000378:metabolism*; D005260:Female; D045167:Progesterone Congeners / Q000494:pharmacology; D012756:Sheep / Q000378:metabolism*; D014599:Uterus / Q000187:drug effects / Q000378:metabolism*
D045167:Progesterone Congeners; D004958:Estradiol; D002118:Calcium