1
|
Zhao Y, Zhao S, Kuge Y, Strauss HW, Blankenberg FG, Tamaki N. Attenuation of Apoptosis by Telmisartan in Atherosclerotic Plaques of Apolipoprotein E
−/−
Mice: Evaluation Using Technetium 99m–Annexin A5. Mol Imaging 2013. [DOI: 10.2310/7290.2012.00045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Yan Zhao
- From the Departments of Tracer Kinetics and Bioanalysis and Nuclear Medicine, Graduate School of Medicine, and Central Institute of Isotope Science, Hokkaido University, Sapporo, Japan; Department of Nuclear Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY; and Department of Pediatric Radiology, Stanford University School of Medicine, Palo Alto, CA
| | - Songji Zhao
- From the Departments of Tracer Kinetics and Bioanalysis and Nuclear Medicine, Graduate School of Medicine, and Central Institute of Isotope Science, Hokkaido University, Sapporo, Japan; Department of Nuclear Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY; and Department of Pediatric Radiology, Stanford University School of Medicine, Palo Alto, CA
| | - Yuji Kuge
- From the Departments of Tracer Kinetics and Bioanalysis and Nuclear Medicine, Graduate School of Medicine, and Central Institute of Isotope Science, Hokkaido University, Sapporo, Japan; Department of Nuclear Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY; and Department of Pediatric Radiology, Stanford University School of Medicine, Palo Alto, CA
| | - H. William Strauss
- From the Departments of Tracer Kinetics and Bioanalysis and Nuclear Medicine, Graduate School of Medicine, and Central Institute of Isotope Science, Hokkaido University, Sapporo, Japan; Department of Nuclear Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY; and Department of Pediatric Radiology, Stanford University School of Medicine, Palo Alto, CA
| | - Francis G. Blankenberg
- From the Departments of Tracer Kinetics and Bioanalysis and Nuclear Medicine, Graduate School of Medicine, and Central Institute of Isotope Science, Hokkaido University, Sapporo, Japan; Department of Nuclear Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY; and Department of Pediatric Radiology, Stanford University School of Medicine, Palo Alto, CA
| | - Nagara Tamaki
- From the Departments of Tracer Kinetics and Bioanalysis and Nuclear Medicine, Graduate School of Medicine, and Central Institute of Isotope Science, Hokkaido University, Sapporo, Japan; Department of Nuclear Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY; and Department of Pediatric Radiology, Stanford University School of Medicine, Palo Alto, CA
| |
Collapse
|
2
|
Moningka NC, Sasser JM, Croker B, Carter C, Baylis C. Protection against age-dependent renal injury in the F344xBrown Norway male rat is associated with maintained nitric oxide synthase. Mech Ageing Dev 2011; 132:1-7. [PMID: 21087620 PMCID: PMC3032044 DOI: 10.1016/j.mad.2010.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Revised: 09/29/2010] [Accepted: 10/23/2010] [Indexed: 12/12/2022]
Abstract
Age-dependent renal damage is influenced by genetic background and the Fisher344xBrown Norway (F344xBN) rat is resistant to glomerular injury. In vulnerable strains, a fall in renal nitric oxide synthase (NOS) contributes to age-dependent renal damage. Here, we investigated renal NOS in young (3 months) and old (30 months) male F344xBN to test the hypothesis that renal NOS is maintained in "protected" strains. We also examined if 6 months of renin-angiotensin system (RAS) blockade using angiotensin converting enzyme inhibition (ACEI) and angiotensin receptor blockade (ARB) provides further benefit in these "protected" old rats. Aging increased tubulointerstitial injury but glomerular sclerosis was minimal and NOS and superoxide dismutase abundance increased. There was no change in the NOS inhibitor, ADMA (asymmetric dimethylarginine) or its regulatory enzymes. RAS blockade with ARB protected against tubulointerstitial injury and increased nNOSα, but ACEI, which also increased nNOSα, had no protective effect on the tubulointerstitium. We conclude that the glomerular sclerosis-resistant aged male F344xBN rat maintains renal NOS, thus reinforcing our hypothesis that progressive glomerular injury is related to renal NOS deficiency. The tubulointerstitial injury seen with aging is reversed with 6 months of ARB but not ACEI and is not associated with renal NOS.
Collapse
Affiliation(s)
- Natasha C Moningka
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610, USA.
| | | | | | | | | |
Collapse
|