PMID- 11480848 OWN - NLM STAT- MEDLINE DCOM- 20011213 LR - 20170214 IS - 0961-2033 (Print) IS - 0961-2033 (Linking) VI - 10 IP - 7 DP - 2001 TI - Hyperactivity in a mouse model of the antiphospholipid syndrome. PG - 496-9 AB - In the antiphospholipid syndrome (APS), antibodies to a complex of phospholipids and beta2-glycoprotein I (beta2-GPI) are associated with recurrent thromboembolic events, spontaneous abortions, thrombocytopenia and central nervous system (CNS) disturbances. Animals immunized with beta2-GPI develop the systemic manifestations of APS but the involvement of the (CNS) in these animals has not been studied. The objective of the present study was to examine mice with induced experimental APS for behavioral changes. Female Balb/C mice were immunized once with beta2-GPI in complete Freund's adjuvant (CFA) or with CFA alone. Four months after immunization the mice were tested in the staircase apparatus and the following two variables were measured: (1) number of rears: and (2) number of stairs climbed by the mice. Immunization with beta2-GPI resulted in elevated levels of circulating anti-negatively charged phospholipids and anti-beta2-GPI antibodies. The APS mice exhibited hyperactive behavior as reflected by more frequent rears (P < 0.023) and higher number of stairs climbed (P < 0.019) by the mice in 3 min. This simple test demonstrated that experimental APS animals are significantly hyperactive and may serve as a marker for CNS involvement in this model. FAU - Katzav, A AU - Katzav A AD - Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv, Israel. FAU - Pick, C G AU - Pick CG FAU - Korczyn, A D AU - Korczyn AD FAU - Oest, E AU - Oest E FAU - Blank, M AU - Blank M FAU - Shoenfeld, Y AU - Shoenfeld Y FAU - Chapman, J AU - Chapman J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Lupus JT - Lupus JID - 9204265 RN - 0 (Autoantibodies) RN - 0 (Glycoproteins) RN - 0 (beta 2-Glycoprotein I) SB - IM MH - Animals MH - Antiphospholipid Syndrome/immunology/*psychology MH - Autoantibodies/biosynthesis MH - Female MH - Glycoproteins/immunology MH - Immunization MH - Mice MH - Mice, Inbred BALB C MH - *Motor Activity MH - beta 2-Glycoprotein I EDAT- 2001/08/02 10:00 MHDA- 2002/01/05 10:01 CRDT- 2001/08/02 10:00 PHST- 2001/08/02 10:00 [pubmed] PHST- 2002/01/05 10:01 [medline] PHST- 2001/08/02 10:00 [entrez] AID - 10.1191/096120301678416060 [doi] PST - ppublish SO - Lupus. 2001;10(7):496-9. doi: 10.1191/096120301678416060.