نتایج جستجو برای: hypoxic stress

تعداد نتایج: 458741  

Journal: :iranian journal of child neurology 0
faik ilik* department of neurology, elbistan state hospital, kahramanmaras, turkey mustafa kemal ilik department of neurosurgery, faculty of medicine, mevlana university, konya, turkey i̇lker çoven department of neurosurgery, faculty of medicine, başkent university, konya, turkey

how to cite this article:  ilik f, ilik mk, çöven i. levatiracetam for the management of lance-adams syndrome. iran j child neurol. 2014 spring 8(2):57-59.   chronic post-hypoxic myoclonus, also known as lance-adams syndrome (las) is a neurological complication characterized by uncontrolled myoclonic jerks following cardiac arrest. in this article, clinical manifestation and symptomatic treatme...

1999
JIE LIU IRENE GINIS JOHN M. HALLENBECK Irene Ginis Maria Spatz

Liu, Jie, Irene Ginis, Maria Spatz, and John M. Hallenbeck. Hypoxic preconditioning protects cultured neurons against hypoxic stress via TNF-a and ceramide. Am. J. Physiol. Cell Physiol. 278: C144–C153, 2000.—Brief ‘‘preconditioning’’ ischemia induces ischemic tolerance (IT) and protects the animal brain from subsequent otherwise lethal ischemia. Identification of the signaling steps most proxi...

ژورنال: طب جنوب 2019
Houshdar Tehrnai , Mohammad Hassan, Mohammadpoor , Mahtab, Shahhosseini , Soraya,

Background: Many diseases, including cancer, ischemia and tumors show degrees of tissue hypoxia.Therefore, it is useful to detect tissue hypoxia with compounds that can penetrate and remain in hypoxic cells in order to diagnose cancer at early stages. Peptides with low molecular weight, susceptible to redox environment, with easier penetration into tissues and low antigenic characteristics are ...

Journal: :Biology letters 2017
Collin Teague Jacob P Youngblood Kinley Ragan Michael J Angilletta John M VandenBrooks

We used quantitative genetics to test a controversial theory of heat stress, in which animals overheat when the demand for oxygen exceeds the supply. This theory, referred to as oxygen- and capacity-limited thermal tolerance, predicts a positive genetic correlation between hypoxia tolerance and heat tolerance. We demonstrate the first genetic correlation of this kind in a model organism, Drosop...

2018
J.J. David Ho Nathan C. Balukoff Grissel Cervantes Petrice D. Malcolm Jonathan R. Krieger Stephen Lee

The eukaryotic translation initiation factor 5B (eIF5B) is a homolog of IF2, an ancient translation factor that enables initiator methionine-tRNAiMet (met-tRNAiMet) loading on prokaryotic ribosomes. While it can be traced back to the last universal common ancestor, eIF5B is curiously dispensable in modern aerobic yeast and mammalian cells. Here, we show that eIF5B is an essential element of the...

Journal: :American journal of physiology. Cell physiology 2000
J Liu I Ginis M Spatz J M Hallenbeck

Brief "preconditioning" ischemia induces ischemic tolerance (IT) and protects the animal brain from subsequent otherwise lethal ischemia. Identification of the signaling steps most proximal to the development of the IT will allow induction of the resistance to ischemia shortly after the onset of stroke. Animal studies demonstrate a key role of tumor necrosis factor-alpha (TNF-alpha) in inductio...

Journal: :Sleep 1993
Niall Steven Kenneth Sonia Rocha

Hypoxia induces profound changes in the cellular gene expression profile. The discovery of a major transcription factor family activated by hypoxia, HIF (hypoxia-inducible factor), and the factors that contribute to HIF regulation have greatly enhanced our knowledge of the molecular aspects of the hypoxic response. However, in addition to HIF, other transcription factors and cellular pathways a...

2014
Amir Mokhtari Martin Lewis

Cyanotic congenital heart disease comprises a diverse spectrum of anatomical pathologies. Common to all, however, is chronic hypoxia before these lesions are operated upon when cardiopulmonary bypass is initiated. A range of functional and structural adaptations take place in the chronically hypoxic heart, which, whilst protective in the hypoxic state, are deleterious when the availability of o...

Journal: :Cancer research 2004
Lorenzo Romero-Ramirez Hongbin Cao Daniel Nelson Ester Hammond Ann-Hwee Lee Hiderou Yoshida Kazutoshi Mori Laurie H Glimcher Nicholas C Denko Amato J Giaccia Quynh-Thu Le Albert C Koong

Hypoxia within solid tumors is a major determinant of outcome after anticancer therapy. Analysis of gene expression changes during hypoxia indicated that unfolded protein response genes were one of the most robustly induced groups of genes. In this study, we investigated the hypoxic regulation of X-box binding protein (XBP1), a major transcriptional regulator of the unfolded protein response. H...

2017
Iosifina P. Foskolou Christian Jorgensen Katarzyna B. Leszczynska Monica M. Olcina Hanna Tarhonskaya Bauke Haisma Vincenzo D’Angiolella William K. Myers Carmen Domene Emily Flashman Ester M. Hammond

Cells exposed to hypoxia experience replication stress but do not accumulate DNA damage, suggesting sustained DNA replication. Ribonucleotide reductase (RNR) is the only enzyme capable of de novo synthesis of deoxyribonucleotide triphosphates (dNTPs). However, oxygen is an essential cofactor for mammalian RNR (RRM1/RRM2 and RRM1/RRM2B), leading us to question the source of dNTPs in hypoxia. Her...

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