EFFECT OF L-ARGININE THERAPY ON PLASMA NO2 AND NO3 LEVELS, AND BLOOD PRESSURE IN UREMIC RABBITS
Abstract
Background: Normal kidney function is regulated by Nitric oxide (NO) and Superoxide (O2-) inthe body, and consequently controls blood pressure. Nitric Oxide promotes natriuresis anddiuresis, and therefore results in reduction of blood pressure. The objective of this study was todetermine the effect of L-arginine supplementation on blood pressure, urinary protein, nitrite andnitrate in addition to blood urea, serum creatinine and creatinine clearance in uremic rabbits.Methods: This study was carried out in the Department of Biochemistry Basic Medical SciencesInstitute, Jinnah Postgraduate Medical Centre, Karachi. A total of 48 rabbits were included in thestudy. Twenty-four of the rabbits on surgical intervention were prepared as uremic and so becamehypertensive as well. Two groups were uremic, one group was given L-arginine and the other wasremained untreated. Systolic and diastolic blood pressure was measured on week 0, week 2, week4, and week 6, while blood and urine was collected on week 0 and week 6. Results: Onsupplementation with L-arginine to uremic rabbits systolic and diastolic blood pressures weredecreased significantly. Nitrite/nitrate and urinary protein were corrected to some extent whileblood urea and serum creatinine were unaffected. Conclusion: L-arginine has a beneficial role asblood pressure lowering agent in uremic rabbits. It corrects NO2/NO3 plasma level and proteinuriawhich is indicator of renal failure.Keywords: Renal failure, uremia, L-arginine, hypertention, NO2/NO3References
Meguid El Nahas A, Bello AK. Chronic kidney disease: the
global challenge. Lancet 2005;365:331–40.
Pecoits Firho R, Lindholm B, Stenvinkel P. The malnutrition,
inflammation and atherosclerosis (MIA) syndrome: the heart
of the matter. Nephrol Dial Transplant 2002;17(Suppl
:28–31.
Ortiz PA, Hong NJ, Wang D, Garvin JL. Gene transfer of
eNOS to the thick ascending limb of eNOS-KO mice restores
the effects of L-arginine on NaCl absorption. Hypertension
;42:674–9.
Brands MW, Bell TD, Gibson B. Nitric oxide may prevent
hypertension early in diabetes by counteracting renal actions
of superoxide. Hypertension 2004;43:57–63.
Napoli C, de Nigris F, Williams-Ignarro F, Pignalosa O, Sica
V, Ignarro LJ. Nitric oxide and atherosclerosis: an update.
Nitric Oxide 2006;15:265–79.
Reyes AA, Karl I, Klahr S. Role of L-arginine in health and
in renal disease. Am J Physiol 1994;267(3 part 2):F331–46.
Brunini TM, Mendes-Ribeiro AC, Ellory JC, Mann GE.
Platelet nitric oxide synthesis in uremia and malnutrition: A
role for L-arginine supplementation in vascular protection?
Cardiovasc Res 2007;73:359–67.
Hayashi T, Juliet PA, Matsui H, Miyazaki A, Fukatsu A,
Funami J, et al. L-Citrulline and L-arginine supplementation
retards the progression of high cholesterol diet induced
atherosclerosis in rabbits. Proc Natl Acad Sci USA
;102:13681–6.
Okubo K, Hayashi K, Wakino S, Matsuda H, Kubota E,
Honda M, et al. Role of Asymmetrical Dimethylarginine in
renal microvascular endothelial dysfunction in chronic renal
failure with hypertension. Hypertens Res 2005;28:181–9.
Carlström M, Brown RD, Edlund J, Sällström J, Larsson E,
Teerlink T, et al. Role of nitric oxide deficiency in the
development of hypertension in hydronephrotic animals. Am
J Physiol Renal Physiol 2008;294:F362–70.
Baylis C. Arginine, arginine analogs and nitric oxide
production in chronic kidney disease. Nat Clin Pract Nephrol
;2:209–20.
Yannick D, D'Amours M, Lebel M, Larivière R.
Supplementation with a low dose of l-arginine reduces blood
pressure and endothelin-1 production in hypertensive uremic
rats. Naprol Dial Transplant 2001;16:746−54.
Downloads
Published
Issue
Section
License
Journal of Ayub Medical College, Abbottabad is an OPEN ACCESS JOURNAL which means that all content is FREELY available without charge to all users whether registered with the journal or not. The work published by J Ayub Med Coll Abbottabad is licensed and distributed under the creative commons License CC BY ND Attribution-NoDerivs. Material printed in this journal is OPEN to access, and are FREE for use in academic and research work with proper citation. J Ayub Med Coll Abbottabad accepts only original material for publication with the understanding that except for abstracts, no part of the data has been published or will be submitted for publication elsewhere before appearing in J Ayub Med Coll Abbottabad. The Editorial Board of J Ayub Med Coll Abbottabad makes every effort to ensure the accuracy and authenticity of material printed in J Ayub Med Coll Abbottabad. However, conclusions and statements expressed are views of the authors and do not reflect the opinion/policy of J Ayub Med Coll Abbottabad or the Editorial Board.
USERS are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access.
AUTHORS retain the rights of free downloading/unlimited e-print of full text and sharing/disseminating the article without any restriction, by any means including twitter, scholarly collaboration networks such as ResearchGate, Academia.eu, and social media sites such as Twitter, LinkedIn, Google Scholar and any other professional or academic networking site.