Different expression of renin-angiotensin system components in hearts of normotensive and hypertensive rats
Tissue renin-angiotensin systems are known to behave differently from the circulating renin-angiotensin system (RAS). It has already been proposed that not only the circulating RAS, but also RAS localized in the cardiac tissue plays an important role in the heart failure. The objective of this study...
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| Veröffentlicht in: | Physiological research 2001, Vol.50 (1), p.35-42 |
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| creator | Jurkovicová, D Dobesová, Z Kunes, J Krizanová, O |
| description | Tissue renin-angiotensin systems are known to behave differently from the circulating renin-angiotensin system (RAS). It has already been proposed that not only the circulating RAS, but also RAS localized in the cardiac tissue plays an important role in the heart failure. The objective of this study was to compare the gene expression of individual components of the renin-angiotensin system in hearts of normotensive and hypertensive rats. Two genetically hypertensive rat strains--spontaneously hypertensive rats (SHR) and hereditary hypertriglyceridemic rats (HTG)--were compared with Wistar-Kyoto (WKY) and Lewis (LEW) normotensive controls. In addition, developmental changes in gene expression of individual components of cardiac RAS were studied in 20-day-old fetuses, 2-day-old newborns and 3-month-old HTG and LEW rats. In our study, the angiotensinogen gene expression did not differ either among adult normotensive and hypertensive strains, or during development. In contrast, the renin gene expression was significantly increased in hearts of hypertensive compared to normotensive rats. Moreover, a 5-fold increase of renin mRNA was observed in hearts of HTG rats between day 2 and the third month of age. There was also an age-dependent increase of ACE gene expression in both HTG and LEW rats which was substantially delayed in HTG hearts. In conclusion, the results of our study suggest that overexpression of the cardiac renin gene in hypertensive strains could participate in the structural and functional changes of the heart during the development of hypertension. |
| doi_str_mv | 10.33549/physiolres.930024 |
| format | Article |
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It has already been proposed that not only the circulating RAS, but also RAS localized in the cardiac tissue plays an important role in the heart failure. The objective of this study was to compare the gene expression of individual components of the renin-angiotensin system in hearts of normotensive and hypertensive rats. Two genetically hypertensive rat strains--spontaneously hypertensive rats (SHR) and hereditary hypertriglyceridemic rats (HTG)--were compared with Wistar-Kyoto (WKY) and Lewis (LEW) normotensive controls. In addition, developmental changes in gene expression of individual components of cardiac RAS were studied in 20-day-old fetuses, 2-day-old newborns and 3-month-old HTG and LEW rats. In our study, the angiotensinogen gene expression did not differ either among adult normotensive and hypertensive strains, or during development. In contrast, the renin gene expression was significantly increased in hearts of hypertensive compared to normotensive rats. Moreover, a 5-fold increase of renin mRNA was observed in hearts of HTG rats between day 2 and the third month of age. There was also an age-dependent increase of ACE gene expression in both HTG and LEW rats which was substantially delayed in HTG hearts. In conclusion, the results of our study suggest that overexpression of the cardiac renin gene in hypertensive strains could participate in the structural and functional changes of the heart during the development of hypertension.</description><identifier>ISSN: 0862-8408</identifier><identifier>EISSN: 1802-9973</identifier><identifier>DOI: 10.33549/physiolres.930024</identifier><identifier>PMID: 11300225</identifier><language>eng</language><publisher>Czech Republic</publisher><subject>Angiotensinogen - genetics ; Animals ; Gene Expression ; Hypertension - genetics ; Hypertension - metabolism ; Hypertriglyceridemia - genetics ; Hypertriglyceridemia - metabolism ; Male ; Myocardium - chemistry ; Myocardium - metabolism ; Polymerase Chain Reaction ; Rats ; Rats, Inbred Lew ; Rats, Inbred SHR ; Rats, Inbred WKY ; Renin - genetics ; Renin-Angiotensin System - genetics ; Reverse Transcriptase Polymerase Chain Reaction ; RNA, Messenger - analysis</subject><ispartof>Physiological research, 2001, Vol.50 (1), p.35-42</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-d4aae271f07abdd464b46794cbcb0755003992911efb6aa26a54b335754dcd363</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,4010,27902,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11300225$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Jurkovicová, D</creatorcontrib><creatorcontrib>Dobesová, Z</creatorcontrib><creatorcontrib>Kunes, J</creatorcontrib><creatorcontrib>Krizanová, O</creatorcontrib><title>Different expression of renin-angiotensin system components in hearts of normotensive and hypertensive rats</title><title>Physiological research</title><addtitle>Physiol Res</addtitle><description>Tissue renin-angiotensin systems are known to behave differently from the circulating renin-angiotensin system (RAS). It has already been proposed that not only the circulating RAS, but also RAS localized in the cardiac tissue plays an important role in the heart failure. The objective of this study was to compare the gene expression of individual components of the renin-angiotensin system in hearts of normotensive and hypertensive rats. Two genetically hypertensive rat strains--spontaneously hypertensive rats (SHR) and hereditary hypertriglyceridemic rats (HTG)--were compared with Wistar-Kyoto (WKY) and Lewis (LEW) normotensive controls. In addition, developmental changes in gene expression of individual components of cardiac RAS were studied in 20-day-old fetuses, 2-day-old newborns and 3-month-old HTG and LEW rats. In our study, the angiotensinogen gene expression did not differ either among adult normotensive and hypertensive strains, or during development. In contrast, the renin gene expression was significantly increased in hearts of hypertensive compared to normotensive rats. Moreover, a 5-fold increase of renin mRNA was observed in hearts of HTG rats between day 2 and the third month of age. There was also an age-dependent increase of ACE gene expression in both HTG and LEW rats which was substantially delayed in HTG hearts. In conclusion, the results of our study suggest that overexpression of the cardiac renin gene in hypertensive strains could participate in the structural and functional changes of the heart during the development of hypertension.</description><subject>Angiotensinogen - genetics</subject><subject>Animals</subject><subject>Gene Expression</subject><subject>Hypertension - genetics</subject><subject>Hypertension - metabolism</subject><subject>Hypertriglyceridemia - genetics</subject><subject>Hypertriglyceridemia - metabolism</subject><subject>Male</subject><subject>Myocardium - chemistry</subject><subject>Myocardium - metabolism</subject><subject>Polymerase Chain Reaction</subject><subject>Rats</subject><subject>Rats, Inbred Lew</subject><subject>Rats, Inbred SHR</subject><subject>Rats, Inbred WKY</subject><subject>Renin - genetics</subject><subject>Renin-Angiotensin System - genetics</subject><subject>Reverse Transcriptase Polymerase Chain Reaction</subject><subject>RNA, Messenger - analysis</subject><issn>0862-8408</issn><issn>1802-9973</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkMtOwzAQRS0EoqXwAyyQV-xS_EpcL1F5SpXYwDpykgkNJHbwpIj8PYYUsZrR1bl3cQg552wpZarMVb8dsfFtAFwayZhQB2TOV0wkxmh5SOZslYlkpdhqRk4Q3yKhmZbHZMb5Dy7SOXm_aeoaAriBwlcfl-Kgo76mMWpcYt1r4wdw2DiKIw7Q0dJ3vXexgDSGW7AhfrHgfOgm9BOodRXdjj2EvyDYAU_JUW1bhLP9XZCXu9vn9UOyebp_XF9vklIqOSSVshaE5jXTtqgqlalCZdqosigLptOUMWmMMJxDXWTWisymqohCdKqqspKZXJDLabcP_mMHOORdgyW0rXXgd5hrzRRXSkVQTGAZPGKAOu9D09kw5pzlv4rzf8X5pDiWLvbru6KD6r-ydyq_AchLfYo</recordid><startdate>2001</startdate><enddate>2001</enddate><creator>Jurkovicová, D</creator><creator>Dobesová, Z</creator><creator>Kunes, J</creator><creator>Krizanová, O</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>2001</creationdate><title>Different expression of renin-angiotensin system components in hearts of normotensive and hypertensive rats</title><author>Jurkovicová, D ; Dobesová, Z ; Kunes, J ; Krizanová, O</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-d4aae271f07abdd464b46794cbcb0755003992911efb6aa26a54b335754dcd363</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Angiotensinogen - genetics</topic><topic>Animals</topic><topic>Gene Expression</topic><topic>Hypertension - genetics</topic><topic>Hypertension - metabolism</topic><topic>Hypertriglyceridemia - genetics</topic><topic>Hypertriglyceridemia - metabolism</topic><topic>Male</topic><topic>Myocardium - chemistry</topic><topic>Myocardium - metabolism</topic><topic>Polymerase Chain Reaction</topic><topic>Rats</topic><topic>Rats, Inbred Lew</topic><topic>Rats, Inbred SHR</topic><topic>Rats, Inbred WKY</topic><topic>Renin - genetics</topic><topic>Renin-Angiotensin System - genetics</topic><topic>Reverse Transcriptase Polymerase Chain Reaction</topic><topic>RNA, Messenger - analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jurkovicová, D</creatorcontrib><creatorcontrib>Dobesová, Z</creatorcontrib><creatorcontrib>Kunes, J</creatorcontrib><creatorcontrib>Krizanová, O</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Physiological research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jurkovicová, D</au><au>Dobesová, Z</au><au>Kunes, J</au><au>Krizanová, O</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Different expression of renin-angiotensin system components in hearts of normotensive and hypertensive rats</atitle><jtitle>Physiological research</jtitle><addtitle>Physiol Res</addtitle><date>2001</date><risdate>2001</risdate><volume>50</volume><issue>1</issue><spage>35</spage><epage>42</epage><pages>35-42</pages><issn>0862-8408</issn><eissn>1802-9973</eissn><abstract>Tissue renin-angiotensin systems are known to behave differently from the circulating renin-angiotensin system (RAS). It has already been proposed that not only the circulating RAS, but also RAS localized in the cardiac tissue plays an important role in the heart failure. The objective of this study was to compare the gene expression of individual components of the renin-angiotensin system in hearts of normotensive and hypertensive rats. Two genetically hypertensive rat strains--spontaneously hypertensive rats (SHR) and hereditary hypertriglyceridemic rats (HTG)--were compared with Wistar-Kyoto (WKY) and Lewis (LEW) normotensive controls. In addition, developmental changes in gene expression of individual components of cardiac RAS were studied in 20-day-old fetuses, 2-day-old newborns and 3-month-old HTG and LEW rats. In our study, the angiotensinogen gene expression did not differ either among adult normotensive and hypertensive strains, or during development. In contrast, the renin gene expression was significantly increased in hearts of hypertensive compared to normotensive rats. Moreover, a 5-fold increase of renin mRNA was observed in hearts of HTG rats between day 2 and the third month of age. There was also an age-dependent increase of ACE gene expression in both HTG and LEW rats which was substantially delayed in HTG hearts. In conclusion, the results of our study suggest that overexpression of the cardiac renin gene in hypertensive strains could participate in the structural and functional changes of the heart during the development of hypertension.</abstract><cop>Czech Republic</cop><pmid>11300225</pmid><doi>10.33549/physiolres.930024</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Angiotensinogen - genetics Animals Gene Expression Hypertension - genetics Hypertension - metabolism Hypertriglyceridemia - genetics Hypertriglyceridemia - metabolism Male Myocardium - chemistry Myocardium - metabolism Polymerase Chain Reaction Rats Rats, Inbred Lew Rats, Inbred SHR Rats, Inbred WKY Renin - genetics Renin-Angiotensin System - genetics Reverse Transcriptase Polymerase Chain Reaction RNA, Messenger - analysis |
| title | Different expression of renin-angiotensin system components in hearts of normotensive and hypertensive rats |
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