BASAL HIGH BLOOD-PRESSURE COSEGREGATES WITH THE LOCI ON CHROMOSOME-1 IN THE F(2)-GENERATION FROM CROSSES BETWEEN NORMOTENSIVE WISTAR-KYOTO RATS AND STROKE-PRONE SPONTANEOUSLY HYPERTENSIVE RATS

被引:35
作者
NARA, Y
NABIKA, T
IKEDA, K
SAWAMURA, M
MANO, M
ENDO, J
YAMORI, Y
机构
[1] SHIMANE MED UNIV,DEPT LAB MED,IZUMO,SHIMANE 693,JAPAN
[2] SHIMANE INST HLTH SCI,IZUMO,JAPAN
[3] KYOTO UNIV,GRAD SCH HUMAN & ENVIRONM STUDIES,KYOTO 606,JAPAN
关键词
D O I
10.1006/bbrc.1993.1972
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We investigated the linkage between high blood pressure (BP) and microsatellite genotypes in the independently produced F2 progenies between Wistar Kyoto rats (WKY) and stroke-prone spontaneously hypertensive rats (SHRSP) at the age of 2.5, 3 and 5 months before salt loading and after 2 month salt loading. In 2.5, 3 and 5 month-old male and female F2 progenies, blood pressure was significantly higher in homozygotes of the SHRSP allele at the two loci on rat chromosome 1, leukosianine (LSN) and myosin light chain (MYL2), than those of heterozygotes or WKY homozygotes. However, this strong cosegregation was attenuated after salt loading for 2 months. Basal (non salt-loaded) blood pressure strongly cosegregates with the loci on rat chromosome 1 and, therefore, putative gene(s) in this region contribute to the development of basal high blood pressure in SHRSP. © 1993 Academic Press, Inc.
引用
收藏
页码:1344 / 1351
页数:8
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