Volume 59, Issue 4, Pages (April 2001)

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Volume 59, Issue 4, Pages 1274-1282 (April 2001) Increased expression of atrial natriuretic peptide in the kidney of rats with bilateral ureteral obstruction Soo Wan Kim, Jongun Lee, Jong Wook Park, Jung Hee Hong, Hyun Kook, Chan Choi, Ki Chul Choi Kidney International Volume 59, Issue 4, Pages 1274-1282 (April 2001) DOI: 10.1046/j.1523-1755.2001.0590041274.x Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 1 Representative fluorographs showing ethidium bromide-stained agarose gels containing reverse transcription-polymerase chain reaction (RT-PCR) products of atrial natriuretic peptide (ANP), natriuretic peptide receptor-A (NPR-A), and NPR-C. (A) RT-PCR products using decreasing amounts of competitive reference standard (CRS)-DNA. (B) Examples determining cDNA concentration. The point of equal density (ratio = 1) was regarded as the concentration of wild-type cDNA. Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 2 Correlation between urinary ANP and (A) sodium or (B) volume excretion in control and experimental rats. Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 3 Expression of ANP mRNA in rats with bilateral ureteral obstruction (BUO), and BUO rats with their obstructions released and then measurements taken four (BUR-4), and 24 hours (BUR-24) later. Each column represents the mean ± SEM of six rats. ***P < 0.001 vs. control. Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 4 Expression of NPR-A mRNA in BUO, BUR-4, and BUR-24 rats. Each column represents the mean ± SEM of six rats. **P < 0.01 vs. control. Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 5 Expression of NPR-C mRNA in BUO, BUR-4, and BUR-24. Each column represents mean ± SEM of six rats. ***P < 0.001 vs. control. Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 6 Autoradiographic localization of 125I-ANP binding sites in control and BUO kidneys. Frozen sections were incubated with 125I-ANP (200 pmol/L). Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 7 Specific 125I-ANP binding in the (A) glomerulus and (B) papilla. Symbols are: (○) control; (•) BUO. (Inset) Representative Scatchard plot. Abbreviations are: B/F, bound/free; B, bound. Each point represents mean ± SEM of eight experiments. Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 8 cGMP production in response to ANP in the glomerulus in (A) BUO, (B) BUR-4, and (C) BUR-24 rats. Symbols are: (○) controls; (•) BUO or BUR. Each point represents mean ± SEM of eight experiments. *P < 0.05; **P < 0.01; ***P < 0.001 vs. control. Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions

Figure 9 cGMP production in response to ANP in the papilla in (A) BUO, (B) BUR-4, and (C) BUR-24. Symbols are: (○) controls; (•) BUO or BUR. Each point represents mean ± SEM of eight experiments. *P < 0.05; **P < 0.01; ***P < 0.001 vs. control. Kidney International 2001 59, 1274-1282DOI: (10.1046/j.1523-1755.2001.0590041274.x) Copyright © 2001 International Society of Nephrology Terms and Conditions