Cardiac remodeling after long-term stimulation by antibodies against the alpha1-adrenergic receptor in rats

Although autoantibodies against the alpha1-adrenergic receptor which had been found in hypertensive patients had agonist-like activity as phenylephrine, the effects of these antibodies on cardiac remodeling have not been known. In this paper, the models with agonist-like activity of antibodies to al...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 114(2005), 2 vom: 10. Feb., Seite 164-73
1. Verfasser: Zhou, Zihua (VerfasserIn)
Weitere Verfasser: Liao, Yu-Hua, Wei, Yumiao, Wei, Fen, Wang, Bin, Li, Liudong, Wang, Min, Liu, Kun
Format: Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Adrenergic alpha-1 Receptor Agonists Adrenergic alpha-Antagonists Antibodies Peptide Fragments Proto-Oncogene Proteins c-fos Proto-Oncogene Proteins c-jun Receptors, Adrenergic, alpha-1 Collagen mehr... 9007-34-5 Matrix Metalloproteinase 2 EC 3.4.24.24 Calcium SY7Q814VUP Prazosin XM03YJ541D
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245 1 0 |a Cardiac remodeling after long-term stimulation by antibodies against the alpha1-adrenergic receptor in rats 
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520 |a Although autoantibodies against the alpha1-adrenergic receptor which had been found in hypertensive patients had agonist-like activity as phenylephrine, the effects of these antibodies on cardiac remodeling have not been known. In this paper, the models with agonist-like activity of antibodies to alpha1-adrenergic receptor were made by immunized Wistar rats using synthesized peptides of alpha1A-adrenergic receptor and raised for 1 year, and the excited antibodies against the alpha1-adrenergic receptor which could elevate the free Ca2+ in isolated adult rat cardiomyocytes had been existed throughout the experiments after immunization. In immunized rats, despite that systolic blood pressure (SBP) had no difference with normal control, the hypertrophy of heart and cardiomyocytes was observed, the collagen deposition in heart interstitium increased, and c-jun expression and matrix metalloproteinase (MMP)-2 mRNA expression and activity in heart had increased. The results suggested that antibodies against the alpha1-adrenergic receptor could induce cardiac remodeling and maybe play a particular role in hypertension 
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700 1 |a Liao, Yu-Hua  |e verfasserin  |4 aut 
700 1 |a Wei, Yumiao  |e verfasserin  |4 aut 
700 1 |a Wei, Fen  |e verfasserin  |4 aut 
700 1 |a Wang, Bin  |e verfasserin  |4 aut 
700 1 |a Li, Liudong  |e verfasserin  |4 aut 
700 1 |a Wang, Min  |e verfasserin  |4 aut 
700 1 |a Liu, Kun  |e verfasserin  |4 aut 
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