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ID 37722
本文ファイル
著者
Sasaki, Nobuo
キーワード
Cytosolic magnesium
Lymphocyte
Mag-fura-2
NDC
医学
抄録(英)
Recently it has been suggested that Mg deficiency may play a key role in hypertension and several cardiovascular diseases. In order to investigate the status of Mg in genetic hypertension, the cytosolic free Mg2+ concentration ([Mg2+]i) in the lymphocytes and serum concentrations of free Mg2+ and total Mg were measured in spontaneously hypertensive rats/Izumo (SHR/Izm), stroke-prone spontaneously hypertensive rats/Izumo (SHRSP/Izm), and Wistar-Kyoto rats/Izumo (WKY/Izm). In addition, the basal cytosolic free Ca2+ concentration ([Ca2+]i) was assessed in the three strains. Systolic blood pressure was highest in SHRSP/Izm and lowest in WKY/Izm. No significant differences were found in either the serum free Mg2+ concentrations or the serum total Mg concentrations among WKY/Izm, SHR/Izm, and SHRSP/Izm. [Mg2+]i in the lymphocytes was significantly higher in SHR/Izm than in WKY/Izm (254±51 versus 201±36μmol/liter, p<0.05), but the [Mg2+]i in SHRSP/Izm (211±34μmol/liter) was at the same level as in WKY/Izm. No significant correlation was found between [Mg2+]i in the lymphocytes and systolic blood pressure. Basal [Ca2+]i did not differ among the three strains. Thus, an increase in [Ca2+]i is not obligatory in all cells of genetically hypertensive rats. Mg deficiency may not exist in the intracellular or extracellular space in genetically hypertensive rats.
掲載誌名
Hiroshima Journal of Medical Sciences
48巻
1号
開始ページ
1
終了ページ
8
出版年月日
1999-03
出版者
Hiroshima University Medical Press
ISSN
0018-2052
NCID
言語
英語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
医歯薬学総合研究科
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