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Amyotrophic lateral sclerosis (ALS) most likely results from a multifactorial gene-environment interaction. Strenuous physical activity and occupational exposures have been suggested to play a role, and an abnormal response to hypoxia has been proposed in ALS pathogenesis. To test the hypothesis of
The clinical course of the degenerative motor neuron disorder amyotrophic lateral sclerosis (ALS) is closely related to hypoxia. The normal response to hypoxia involves two pathways in particular: the hypoxia inducible factor 1α (HIF-1α) pathway (which notably controls the synthesis of vascular
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder of upper and lower motorneurons, leading to death in 3 to 5 years. Respiratory insufficiency and hypoxemia are closely linked during the clinical course of ALS. Chronic respiratory insufficiency and hypoxemia generally occur late in
The central nervous system (CNS) uses a significant amount of oxygen for energy production. Decreased oxygen supply due to impaired blood supply critically damages the CNS. As chronic hypoxic conditions have diverse effects via the excessive production of reactive oxygen species, protection from
Amyotrophic lateral sclerosis is a fatal neurodegenerative disease that affects motor neurons. The recruitment of autophagy (macroautophagy) and mitochondrial dysfunction are documented in amyotrophic lateral sclerosis patients and experimental models expressing mutant forms of Cu, Zn superoxide
We investigated the mechanisms underlying abnormal vascular endothelial growth factor (VEGF) production in amyotrophic lateral sclerosis (ALS). We immunohistochemically studied VEGF, its receptors VEGFR1 and 2, and hypoxia-inducible factor-1α (HIF-1α) in autopsied ALS spinal cords. We also
BACKGROUND
Amyotrophic lateral sclerosis (ALS) is a devastating motor neuron disease causing paralysis and death from respiratory failure. Strategies to preserve and/or restore respiratory function are critical for successful treatment. Although breathing capacity is maintained until late in disease
Angiogenin (ANG) gene, coding for an angiogenic factor up-regulated by hypoxia and expressed in ventral horn motor neurons, is a novel candidate for the pathogenesis of amyotrophic lateral sclerosis (ALS). ALS is a fatal neurodegenerative disease characterized by the selective loss of cortical and
Animal studies have highlighted the potentially neuroprotective role of vascular endothelial growth factor (VEGF). Low levels of this growth factor have been found in the cerebrospinal fluid (CSF) of patients with amyotrophic lateral sclerosis (ALS). VEGF (and other proteins, such as erythropoietin
Genetic variations in two hypoxia-inducible angiogenic genes, VEGF and ANG, have been linked with sporadic amyotrophic lateral sclerosis (SALS). Common variations in these genes may reduce the levels or functioning of their products. VEGF and ANG belong to a larger group of angiogenic genes that are
Amyotrophic lateral sclerosis (ALS) is a fatal progressive neurodegenerative disease characterized by the selective death of motor neurons in the motor cortex, brain stem and spinal cord. Recently, missense variants in the angiogenin gene (ANG), an angiogenic factor expressed in ventral horn motor
OBJECTIVE
There is evidence of impaired cardiovascular autonomic control and reduced baroreflex sensitivity in patients with amyotrophic lateral sclerosis (ALS). A compromised baroreflex-chemoreflex interaction might result in inadequate responses to chemoreflex activation with progressive
In amyotrophic lateral sclerosis (ALS), respiratory muscle weakness causes ventilatory insufficiency and tissue hypoxia, which induces a number of metabolic pathways, and in particular increases erythropoietin (EPO) synthesis. EPO is a glycoprotein with neuroprotective properties that stimulates
To investigate the role of erythropoietin (EPO) as genetic determinant in the susceptibility to sporadic amyotrophic lateral sclerosis (SALS). We sequenced a 259-bp region spanning the 3'hypoxia-responsive element of the EPO gene in 222 Italian SALS patients and 204 healthy subjects, matched for age
A case of amyotrophic lateral sclerosis (ALS) diagnosed by sleep-disordered breathing is described. The patient's chief complaints were insomnia and nocturnal dyspnea after taking a hypnotic drug. On examination, he showed restrictive ventilatory impairment, alveolar hypoventilation and hypoxia.