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- Publisher Website: 10.1111/j.1440-1681.2005.04307.x
- Scopus: eid_2-s2.0-33644975207
- PMID: 16445578
- WOS: WOS:000234715900014
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Article: Differential induction of adrenomedullin, interleukins and tumour necrosis factor-α by lipopolysaccharide in rat tissues in vivo
Title | Differential induction of adrenomedullin, interleukins and tumour necrosis factor-α by lipopolysaccharide in rat tissues in vivo |
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Authors | |
Keywords | Adrenal Cytokines Endotoxin Kidney Liver Spleen |
Issue Date | 2005 |
Publisher | Blackwell Publishing Asia. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CEP |
Citation | Clinical And Experimental Pharmacology And Physiology, 2005, v. 32 n. 12, p. 1110-1118 How to Cite? |
Abstract | 1. The aim of the present study was to determine the temporal changes in tissue adrenomedullin (AM) and cytokine contents and cytokine and preproAM mRNA levels in the kidney, liver, adrenal gland and spleen of lipopolysaccharide (LPS)-treated rats. 2. Rats were injected with LPS (10 mg/kg, i.p.). Radioimmunoassay and solution hybridization-RNase protection assays were used to follow the changes in AM and its mRNA levels, respectively; ELISA and reverse transcription-polymerase chain reaction were used to follow the changes in cytokines and their mRNA levels, respectively. 3. In the kidney, the preproAM mRNA levels were increased 1 and 3 h after LPS treatment, whereas AM levels were decreased at 3 h. Interleukin (IL)-6 and IL-1β levels were increased at 3 and 6 h, respectively. 4. The preproAM mRNA levels were elevated in the liver 3 h after LPS injection. Concentrations of tumour necrosis factor (TNF)-α and IL-1β were increased at l and 6 h, respectively. 5. There were no changes in the levels of either preproAM mRNA or AM in the adrenal gland and the spleen. In the spleen, TNF-α levels were elevated at 1 and 3 h after LPS injection and IL-1β was elevated at 1 and 6 h after LPS injection, whereas in the adrenal gland IL-1β was elevated at 6 h after injection. 6. The mRNA levels of the three cytokines were elevated at all three time intervals examined in the kidney, liver, adrenal gland and spleen, with the exception that TNF-α mRNA was not elevated in the adrenal gland at 6 h after LPS injection and IL-1β mRNA was not elevated in the spleen at 3 and 6 h. 7. The plasma concentrations of TNF-α were increased at 1 and 3 h after LPS injection, whereas plasma concentration of IL-1β and IL-6 were elevated at 3 and 6 h for both. 8. The present results suggest that the biosynthesis and secretion of AM may be differentially regulated in various tissues of rats injected with LPS and that AM may interact with cytokines during inflammation. © 2005 Blackwell Publishing Asia Pty Ltd. |
Persistent Identifier | http://hdl.handle.net/10722/91552 |
ISSN | 2023 Impact Factor: 2.4 2023 SCImago Journal Rankings: 0.610 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Li, YY | en_HK |
dc.contributor.author | Wong, LY | en_HK |
dc.contributor.author | Cheung, BM | en_HK |
dc.contributor.author | Hwang, IS | en_HK |
dc.contributor.author | Tang, F | en_HK |
dc.date.accessioned | 2010-09-17T10:21:15Z | - |
dc.date.available | 2010-09-17T10:21:15Z | - |
dc.date.issued | 2005 | en_HK |
dc.identifier.citation | Clinical And Experimental Pharmacology And Physiology, 2005, v. 32 n. 12, p. 1110-1118 | en_HK |
dc.identifier.issn | 0305-1870 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/91552 | - |
dc.description.abstract | 1. The aim of the present study was to determine the temporal changes in tissue adrenomedullin (AM) and cytokine contents and cytokine and preproAM mRNA levels in the kidney, liver, adrenal gland and spleen of lipopolysaccharide (LPS)-treated rats. 2. Rats were injected with LPS (10 mg/kg, i.p.). Radioimmunoassay and solution hybridization-RNase protection assays were used to follow the changes in AM and its mRNA levels, respectively; ELISA and reverse transcription-polymerase chain reaction were used to follow the changes in cytokines and their mRNA levels, respectively. 3. In the kidney, the preproAM mRNA levels were increased 1 and 3 h after LPS treatment, whereas AM levels were decreased at 3 h. Interleukin (IL)-6 and IL-1β levels were increased at 3 and 6 h, respectively. 4. The preproAM mRNA levels were elevated in the liver 3 h after LPS injection. Concentrations of tumour necrosis factor (TNF)-α and IL-1β were increased at l and 6 h, respectively. 5. There were no changes in the levels of either preproAM mRNA or AM in the adrenal gland and the spleen. In the spleen, TNF-α levels were elevated at 1 and 3 h after LPS injection and IL-1β was elevated at 1 and 6 h after LPS injection, whereas in the adrenal gland IL-1β was elevated at 6 h after injection. 6. The mRNA levels of the three cytokines were elevated at all three time intervals examined in the kidney, liver, adrenal gland and spleen, with the exception that TNF-α mRNA was not elevated in the adrenal gland at 6 h after LPS injection and IL-1β mRNA was not elevated in the spleen at 3 and 6 h. 7. The plasma concentrations of TNF-α were increased at 1 and 3 h after LPS injection, whereas plasma concentration of IL-1β and IL-6 were elevated at 3 and 6 h for both. 8. The present results suggest that the biosynthesis and secretion of AM may be differentially regulated in various tissues of rats injected with LPS and that AM may interact with cytokines during inflammation. © 2005 Blackwell Publishing Asia Pty Ltd. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Blackwell Publishing Asia. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CEP | en_HK |
dc.relation.ispartof | Clinical and Experimental Pharmacology and Physiology | en_HK |
dc.subject | Adrenal | en_HK |
dc.subject | Cytokines | - |
dc.subject | Endotoxin | - |
dc.subject | Kidney | - |
dc.subject | Liver | - |
dc.subject | Spleen | - |
dc.subject.mesh | Adrenal Glands - drug effects - metabolism | en_HK |
dc.subject.mesh | Adrenomedullin | en_HK |
dc.subject.mesh | Animals | en_HK |
dc.subject.mesh | In Situ Hybridization | en_HK |
dc.subject.mesh | Interleukins - biosynthesis - blood | en_HK |
dc.subject.mesh | Kidney - drug effects - metabolism | en_HK |
dc.subject.mesh | Lipopolysaccharides - pharmacology | en_HK |
dc.subject.mesh | Liver - drug effects - metabolism | en_HK |
dc.subject.mesh | Male | en_HK |
dc.subject.mesh | Nuclease Protection Assays | en_HK |
dc.subject.mesh | Peptides - blood - metabolism | en_HK |
dc.subject.mesh | RNA - analysis - biosynthesis | en_HK |
dc.subject.mesh | RNA, Messenger - analysis - biosynthesis | en_HK |
dc.subject.mesh | Radioimmunoassay | en_HK |
dc.subject.mesh | Rats | en_HK |
dc.subject.mesh | Rats, Sprague-Dawley | en_HK |
dc.subject.mesh | Regional Blood Flow - drug effects | en_HK |
dc.subject.mesh | Reverse Transcriptase Polymerase Chain Reaction | en_HK |
dc.subject.mesh | Spleen - drug effects - metabolism | en_HK |
dc.subject.mesh | Tissue Distribution | en_HK |
dc.subject.mesh | Tumor Necrosis Factor-alpha - biosynthesis | en_HK |
dc.title | Differential induction of adrenomedullin, interleukins and tumour necrosis factor-α by lipopolysaccharide in rat tissues in vivo | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Cheung, BM:mycheung@hku.hk | en_HK |
dc.identifier.email | Tang, F:ftang@hkucc.hku.hk | en_HK |
dc.identifier.authority | Cheung, BM=rp01321 | en_HK |
dc.identifier.authority | Tang, F=rp00327 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1111/j.1440-1681.2005.04307.x | en_HK |
dc.identifier.pmid | 16445578 | - |
dc.identifier.scopus | eid_2-s2.0-33644975207 | en_HK |
dc.identifier.hkuros | 123603 | - |
dc.identifier.hkuros | 117622 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33644975207&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 32 | en_HK |
dc.identifier.issue | 12 | en_HK |
dc.identifier.spage | 1110 | en_HK |
dc.identifier.epage | 1118 | en_HK |
dc.identifier.eissn | 1440-1681 | - |
dc.identifier.isi | WOS:000234715900014 | - |
dc.publisher.place | Australia | en_HK |
dc.identifier.scopusauthorid | Li, YY=8293496300 | en_HK |
dc.identifier.scopusauthorid | Wong, LY=24476809800 | en_HK |
dc.identifier.scopusauthorid | Cheung, BM=7103294806 | en_HK |
dc.identifier.scopusauthorid | Hwang, IS=7201615103 | en_HK |
dc.identifier.scopusauthorid | Tang, F=7201979770 | en_HK |
dc.identifier.citeulike | 479744 | - |
dc.identifier.issnl | 0305-1870 | - |