نتایج جستجو برای: transient hyperammonemia

تعداد نتایج: 128011  

2017
Ayman M Mahmoud Sultan Alqahtani Sarah I Othman Mousa O Germoush Omnia E Hussein Gadh Al-Basher Jong Seong Khim Maha A Al-Qaraawi Hanan M Al-Harbi Abdulmannan Fadel Ahmed A Allam

Hyperammonemia is a serious complication of liver disease and may lead to encephalopathy and death. This study investigated the effects of Commiphora molmol resin on oxidative stress, inflammation, and hematological alterations in ammonium chloride- (NH4Cl-) induced hyperammonemic rats, with an emphasis on the glutamate-NO-cGMP and Nrf2/ARE/HO-1 signaling pathways. Rats received NH4Cl and C. mo...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2005
Tetsu Kawaguchi Saul W Brusilow Richard J Traystman Raymond C Koehler

Glutamine has been shown to influence endothelial-dependent relaxation and nitric oxide production in vitro, possibly by limiting arginine availability, but its effects in vivo have not been well studied. Hyperammonemia is a pathophysiological condition in which glutamine is elevated and contributes to depressed CO(2) reactivity of cerebral arterioles. We tested the hypothesis that acute hypera...

Journal: :Molecular therapy : the journal of the American Society of Gene Therapy 2011
Sharon C Cunningham Cindy Y Kok Allison P Dane Kevin Carpenter Eddy Kizana Philip W Kuchel Ian E Alexander

Urea cycle defects presenting early in life with hyperammonemia remain difficult to treat and commonly necessitate liver transplantation. Gene therapy has the potential to prevent hyperammonemic episodes while awaiting liver transplantation, and possibly also to avert the need for transplantation altogether. Ornithine transcarbamylase (OTC) deficiency, the most prevalent urea cycle disorder, pr...

2017
Cecilia Maldonado Natalia Guevara Alicia Silveira Pietro Fagiolino Marta Vázquez

Valproic acid is a broad-spectrum anticonvulsant that has also gained attention in the psychiatric setting. With respect to safety, valproic acid may induce a seemingly rare condition, hyperammonemia, which can induce a wide variety of symptoms ranging from irritability to coma. The proposed mechanism of hyperammonemia involves depletion of carnitine and overproduction of a toxic metabolite, 4-...

Journal: :Chest 2007
Alison S Clay Bryan E Hainline

Patients experiencing acute elevations of ammonia present to the ICU with encephalopathy, which may progress quickly to cerebral herniation. Patient survival requires immediate treatment of intracerebral hypertension and the reduction of ammonia levels. When hyperammonemia is not thought to be the result of liver failure, treatment for an occult disorder of metabolism must begin prior to the co...

2010
N Ah Mew E Daikhin R McCarter I Payan I Nissim M Yudkoff M Tuchman Gonzalo Arboleda Nelson Ramírez Claudia Guevara Diego Forero Luis Carlos Morales Juan J. Yunis Humberto Arboleda

N-Carbamylglutamate Accelerates Ureagenesis in Patients with Hyperammonemia N Ah Mew, E Daikhin, R McCarter, I Payan, I Nissim, M Yudkoff, M Tuchman Children's Research Institute, Children's National Medical Center, Washington, DC, Children's Hospital of Philadelphia, Philadelphia, PA The urea cycle is responsible for nitrogen regulation and balance in humans. Disruption of normal urea cycle fu...

Journal: :Nihon Naika Gakkai Zasshi 2000

2015
Agata Widera

Recently, Ghallab and colleagues have identified a novel strategy to reduce hyper-ammonemia in mice (Ghallab et al., 2015). The authors reduced blood ammonia concentrations by infusing a cocktail of glutamate dehydrogenase and its cofactors alpha-ketoglutarate and NADPH. This approach may be clinically relevant, because therapy of hyperammonemia is challenging (Levesque et al., 1999; Enns et al...

Journal: :Pediatric Neurology Briefs 1992

Journal: :Laboratory Medicine 2005

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