Publication Details:
Journal or Publication Title:
Հայաստանի կենսաբանական հանդես =Biological Journal of Armenia
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Title:
The influence of NG-hydroxy-L-arginine on the activity of the urea cycle enzymes
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Contributor(s):
Պատ․ խմբ․՝ Մ․ Գ․ Թումանյան (1948) ; Գ․ Հ․ Բաբաջանյան (1949-1954) ; Հ․ Գ․ Բատիկյան (1954-1977) ; Գլխ․ խմբ․՝ Է․ Գ․ Աֆրիկյան (1978-2007) ; Է․ Ս․ Գևորգյան (2008-2023) ; Ա․ Ա․ Առաքելյան (2023-)
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Uncontrolled Keywords:
Ջավրուշյան Հ. Գ. ; Джаврушян А. Г. ; Urea cycle ; NG-hydroxy ; L-arginine ; nitric oxide ; arginase
Coverage:
Abstract:
Between the relationship of NOS (NO-synthase) and arginase in complicated and peculiar metabolic pathway of L-arginine there are many undiscovered points up till now. The aim of our study was to investigate the influence of NG-hydroxy-L-arginine (NOHA) on the activity of urea cycle enzymes in vitro. Studies have shown that NOHA decreases the activity of all the urea cycle enzymes in liver, except ureotelic arginase, and increases the activity of argininosuccinate synthase and argininosuccinatelyase in brain and kidney. Our results show that the influence of NOHA on various organs in a different way is a new revelation in the pathway of L-arginine. We show that NOHA performs an important role in the metabolism of urea cycle metabolites (ornithine, citrulline and arginine) in different tissues.
Place of publishing:
Երևան