Effect of experimental limbic epilepsy on the estrus cycle and reproductive success in rats

Epilepsia
J MellanbyC Hitchen

Abstract

Epilepsy was induced in female rats by the injection of tetanus toxin (5 mouse LD50) unilaterally into the ventral hippocampus under anesthesia. During the 2-4 weeks that the rats exhibited intermittent spontaneous convulsions, daily vaginal smear tests showed that their estrous cycle was interrupted. In control rats such interruption only occurred for just a few days after the operation. Investigation of mating behavior, on the first night of proestrus, which occurred after 7 weeks from the operation, showed that there were fewer mounts, intromissions or ejaculations from the males, which were caged with previously epileptic animals. These females produced slightly smaller litters than their controls and there was a marked failure of their young to thrive in comparison with those of the control females. This failure appeared to be related to relatively high "stress" levels in the general laboratory environment. The impairment of reproductive success only lasted about 3 months after the original induction of epilepsy since subsequent litters to the same animals thrived normally.

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Citations

Jul 1, 1994·Pharmacology, Biochemistry, and Behavior·E L van LuijtelaarF J van der Staay
Mar 1, 1995·Seizure : the Journal of the British Epilepsy Association·J P Leach, M J Brodie
Sep 1, 1996·Seizure : the Journal of the British Epilepsy Association·G R UllalS K Shankar
Aug 6, 2003·Epilepsy & Behavior : E&B·Andrew G HerzogDonald L Schomer
Feb 1, 2003·Epilepsia·P Satishchandra
Apr 22, 1999·European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies·J BauerC E Elger
Jan 2, 2008·Epilepsy & Behavior : E&B·Stephen C Heinrichs, Edward B Bromfield
Nov 5, 2003·Annals of Neurology·Andrew G HerzogDonald L Schomer
Feb 13, 2013·Epilepsia·Tathiana A AlvarengaMonica L Andersen
Mar 15, 2015·Seizure : the Journal of the British Epilepsy Association·Erik TaubøllSigrid Svalheim
Sep 14, 2000·Seizure : the Journal of the British Epilepsy Association·J BauerC E Elger
Jan 10, 2017·Brain Research·Zsolt KovácsÁrpád Dobolyi
Mar 23, 2018·Journal of Obstetrics and Gynaecology : the Journal of the Institute of Obstetrics and Gynaecology·Gökhan ArtaşAlparslan Akyol
Sep 22, 2020·Systems Biology in Reproductive Medicine·Elif Erdem GuzelIbrahim Enver Ozan

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