Role of Glucocorticosteroid Hormones on the Levels of Rat Liver Carbamoylphosphate Synthase (Ammonia) and Arginase Activity during Ontogenesis

Neonatology ◽  
1980 ◽  
Vol 37 (3-4) ◽  
pp. 113-137 ◽  
Author(s):  
W.H. Lamers ◽  
P.G. Mooren
Keyword(s):  
Rat Liver ◽  
Arginase Activity

Role of nitric oxide in hepatic and pulmonary injury following ischemia-reperfusion of rat liver

2003 ◽  
Vol 124 (4) ◽  
pp. A719-A720
Author(s):  
Yuji Takamatsu ◽  
Kazuo Shimada ◽  
Koji Yamaguchi ◽  
Kazuo Chijiiwa ◽  
Masao Tanaka
Keyword(s):  
Nitric Oxide ◽  
Rat Liver ◽  
Ischemia Reperfusion ◽  
Pulmonary Injury

scholarly journals Role of hepatic lipase in the uptake and processing of chylomicron remnants in rat liver.

1994 ◽  
Vol 35 (4) ◽  
pp. 709-720
Author(s):  
S Shafi ◽  
S E Brady ◽  
A Bensadoun ◽  
R J Havel
Keyword(s):  
Rat Liver ◽  
Hepatic Lipase ◽  
Chylomicron Remnants

scholarly journals Arginase Activity in Eisenia andrei Coelomocytes: Function in the Earthworm Innate Response

2021 ◽  
Vol 22 (7) ◽  
pp. 3687
Author(s):  
Joanna Homa ◽  
Alina Klosowska ◽  
Magdalena Chadzinska
Keyword(s):  
Immune Response ◽  
Wound Healing ◽  
Arginase Activity ◽  
Eisenia Andrei ◽  
Heavy Metals Ions ◽  
First Time ◽  
Important Marker

Arginase is the manganese metalloenzyme catalyzing the conversion of l-arginine to l-ornithine and urea. In vertebrates, arginase is involved in the immune response, tissue regeneration, and wound healing and is an important marker of alternative anti-inflammatory polarization of macrophages. In invertebrates, data concerning the role of arginase in these processes are very limited. Therefore, in the present study, we focused on the changes in arginase activity in the coelomocytes of Eisenia andrei. We studied the effects of lipopolysaccharide (LPS), hydrogen peroxide (H2O2), heavy metals ions (e.g., Mn2+), parasite infection, wound healing, and short-term fasting (5 days) on arginase activity. For the first time in earthworms, we described arginase activity in the coelomocytes and found that it can be up-regulated upon in vitro stimulation with LPS and H2O2 and in the presence of Mn2+ ions. Moreover, arginase activity was also up-regulated in animals in vivo infected with nematodes or experiencing segment amputation, but not in fasting earthworms. Furthermore, we confirmed that the activity of coelomocyte arginase can be suppressed by l-norvaline. Our studies strongly suggest that similarly to the vertebrates, also in the earthworms, coelomocyte arginase is an important element of the immune response and wound healing processes.

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