Oxidative and nitrosative stress in ammonia neurotoxicity

M Skowrońska, J Albrecht - Neurochemistry International, 2013 - Elsevier
Increased ammonia accumulation in the brain due to liver dysfunction is a major contributor
to the pathogenesis of hepatic encephalopathy (HE). Fatal outcome of rapidly progressing …

Signaling factors in the mechanism of ammonia neurotoxicity

MD Norenberg, KV Rama Rao, AR Jayakumar - Metabolic brain disease, 2009 - Springer
Mechanisms involved in hepatic encephalopathy (HE) still remain poorly understood. It is
generally accepted that ammonia plays a major role in this disorder, and that astrocytes …

Oxidative stress in the pathogenesis of hepatic encephalopathy

MD Norenberg, AR Jayakumar, KV Rama Rao - Metabolic brain disease, 2004 - Springer
The pathogenesis of hepatic encephalopathy (HE) remains elusive. While it is clear that
ammonia is the likely toxin and that astrocytes are the main target of its neurotoxicity …

Glutamine as a mediator of ammonia neurotoxicity: a critical appraisal

J Albrecht, M Zielińska, MD Norenberg - Biochemical pharmacology, 2010 - Elsevier
Ammonia is a major neurotoxin implicated in hepatic encephalopathy (HE). Here we discuss
evidence that many aspects of ammonia toxicity in HE-affected brain are mediated by …

Interaction of oxidative stress, astrocyte swelling and cerebral ammonia toxicity

D Häussinger, B Görg - Current opinion in clinical nutrition & …, 2010 - journals.lww.com
Oxidative/nitrosative stress and a low-grade cerebral edema as key events in the
pathogenesis of ammonia toxicity and hepatic encephalopathy may offer potential new …

Glutamine: a Trojan horse in ammonia neurotoxicity

J Albrecht, MD Norenberg - Hepatology, 2006 - journals.lww.com
Mechanisms involved in hepatic encephalopathy still remain to be defined. Nonetheless, it is
well recognized that ammonia is a major factor in its pathogenesis, and that the astrocyte …

Osmotic and oxidative/nitrosative stress in ammonia toxicity and hepatic encephalopathy

B Görg, F Schliess, D Häussinger - Archives of biochemistry and biophysics, 2013 - Elsevier
Hepatic encephalopathy (HE) is a neuropsychiatric complication of acute or chronic liver
failure. Currently, HE in cirrhotic patients is seen as a clinical manifestation of a low grade …

Mechanisms of ammonia-induced astrocyte swelling

MD Norenberg, KVR Rao, AR Jayakumar - Metabolic brain disease, 2005 - Springer
Astrocyte swelling represents the major factor responsible for the brain edema associated
with fulminant hepatic failure (FHF). The edema may be of such magnitude as to increase …

Combined effects of ammonia and manganese on astrocytes in culture

AR Jayakumar, KVR Rao, P Kalaiselvi… - Neurochemical …, 2004 - Springer
Ammonia has been strongly implicated in the pathogenesis of hepatic encephalopathy (HE),
and astrocytes appear to be the primary target of ammonia neurotoxicity. Recent work has …

Ammonia toxicity: from head to toe?

S Dasarathy, RP Mookerjee, V Rackayova… - Metabolic brain …, 2017 - Springer
Ammonia is diffused and transported across all plasma membranes. This entails that
hyperammonemia leads to an increase in ammonia in all organs and tissues. It is known that …