MORIMOTO Satoshi    Department   School of Medicine(Tokyo Women's Medical University Adachi Medical Center), School of Medicine    Position   Professor
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Sympathetic activation and contribution of genetic factors in hypertension with neurovascular compression of the rostral ventrolateral medulla.
掲載誌名	正式名：Journal of hypertension 略　 称：J Hypertens ISSNコード：02636352/02636352
掲載区分	国外
巻・号・頁	17(11),pp.1577-82
著者・共著者	Morimoto S†*, Sasaki S, Itoh H, Nakata T, Takeda K, Nakagawa M, Furuya S, Naruse S, Fukuyama R, Fushiki S
担当区分	筆頭著者,責任著者
発行年月	1999/11
概要	OBJECTIVE:The rostral ventrolateral medulla is an important center for the regulation of sympathetic and cardiovascular activities. Reportedly, neurovascular compression of the rostral ventrolateral medulla may be causally related to essential hypertension. We aimed to determine the mechanism behind elevated blood pressure in hypertensive patients with compression of the rostral ventrolateral medulla and to investigate whether genetic factors contribute to the etiology of hypertension with compression.DESIGN AND METHODS:The study included 56 patients with essential hypertension and 25 normotensive individuals. With the use of magnetic resonance imaging, the essential hypertension group was subdivided into hypertension with compression and without compression groups. We compared plasma levels of hormones that raise blood pressure and family histories of hypertension between the two hypertension groups and the normotension group.RESULTS:Plasma norepinephrine levels, but not plasma renin activity, aldosterone, epinephrine, or vasopressin levels, were significantly higher in the hypertension with compression group (389+/-53 pg/ml) than in the hypertension without compression group (217+/-38, P<0.05) or in the normotension group (225+/-30, P<0.05). The percentage of individuals who had two hypertensive parents was significantly higher in the hypertension with compression group (39.4%) than in the hypertension without compression group (13.0%, P<0.05) or in the normotension group (8.0%, P<0.01).CONCLUSIONS:These results indicate that neurovascular compression of the rostral ventrolateral medulla might be, at least in part, causally related to essential hypertension by increasing sympathetic nerve activity. They also suggest that genetic factors might contribute to the etiology of hypertension with neurovascular compression.
DOI	10.1097/00004872-199917110-00011
PMID	10608471