Results 321 to 330 of about 927,905 (356)
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International Urology and Nephrology, 2013
This review mainly focuses on our understanding of spermatogenesis in physiological and pathological hypoxic condition. Real hypoxia is closely related to vascular changes and an increase in testicular temperature. Both induce a reduction in sperm count and can be related to the increase in germ cell apoptosis.
Ljubinka Jankovic Velickovic +1 more
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This review mainly focuses on our understanding of spermatogenesis in physiological and pathological hypoxic condition. Real hypoxia is closely related to vascular changes and an increase in testicular temperature. Both induce a reduction in sperm count and can be related to the increase in germ cell apoptosis.
Ljubinka Jankovic Velickovic +1 more
openaire +3 more sources
JAMA: The Journal of the American Medical Association, 1972
To the Editor.— The letter of Major Allen B. King appearing inTheJournalJune 26, 1972, on the subject of hypoxia and hypercapnia 1 from bedcovers was of particular interest to me because it suggests the probable pathophysiology underlying a type of headache that I have studied in a number of patients.
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To the Editor.— The letter of Major Allen B. King appearing inTheJournalJune 26, 1972, on the subject of hypoxia and hypercapnia 1 from bedcovers was of particular interest to me because it suggests the probable pathophysiology underlying a type of headache that I have studied in a number of patients.
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1987
Publisher Summary The essential feature of hypoxia is the cessation of oxidative phosphorylation when the mitochondrial PO2 falls below the critical level. The anaerobic pathways, in particular the glycolytic pathway, then come into play. The glycolysis is initiated under hypoxic conditions by the accumulation of adenosine diphosphate (ADP) that acts ...
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Publisher Summary The essential feature of hypoxia is the cessation of oxidative phosphorylation when the mitochondrial PO2 falls below the critical level. The anaerobic pathways, in particular the glycolytic pathway, then come into play. The glycolysis is initiated under hypoxic conditions by the accumulation of adenosine diphosphate (ADP) that acts ...
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Annals of the New York Academy of Sciences, 2009
Periods of chronic hypoxia, which can arise from numerous cardiorespiratory disorders, predispose individuals to the development of dementias, particularly Alzheimer's disease (AD). AD is characterized in part by the increased production of amyloid β peptide (Aβ), which forms the extracellular plaques by which the disease can be identified post mortem.
Chris Peers +5 more
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Periods of chronic hypoxia, which can arise from numerous cardiorespiratory disorders, predispose individuals to the development of dementias, particularly Alzheimer's disease (AD). AD is characterized in part by the increased production of amyloid β peptide (Aβ), which forms the extracellular plaques by which the disease can be identified post mortem.
Chris Peers +5 more
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1987
Many biochemical changes occur during acclimation to altitude. Some appear to be deleterious, but the increase in cytochrome-P 450 and the changes in the endoplasmic reticulum seem to be beneficial. The latter changes could reduce the capillary to oxidase gradient to compensate for the lower capillary oxygen tensions.
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Many biochemical changes occur during acclimation to altitude. Some appear to be deleterious, but the increase in cytochrome-P 450 and the changes in the endoplasmic reticulum seem to be beneficial. The latter changes could reduce the capillary to oxidase gradient to compensate for the lower capillary oxygen tensions.
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International Journal of Clinical Monitoring and Computing, 1985
The use of extensive monitoring approaches in patients with various forms of hypoxic disease has flourished extensively during the past decade. When coupled to advanced computer technology, the capacity for generation and storage of data has increased enormously. In addition to clinicians and biomedical scientists, the field has attracted engineers and
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The use of extensive monitoring approaches in patients with various forms of hypoxic disease has flourished extensively during the past decade. When coupled to advanced computer technology, the capacity for generation and storage of data has increased enormously. In addition to clinicians and biomedical scientists, the field has attracted engineers and
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1973
Microcirculation brings about the convective transport of O2 through the capillary network of the tissue. From the capillaries into the tissue O2 is transported mainly by diffusion. Within the tissue O2 reacts with cytochrome oxidase which is part of the respiratory chain. The respiratory chain is situated in the mitochondria.
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Microcirculation brings about the convective transport of O2 through the capillary network of the tissue. From the capillaries into the tissue O2 is transported mainly by diffusion. Within the tissue O2 reacts with cytochrome oxidase which is part of the respiratory chain. The respiratory chain is situated in the mitochondria.
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Cellular adaptation to hypoxia through hypoxia inducible factors and beyond
Nature Reviews Molecular Cell Biology, 2020Pearl Lee +2 more
exaly
Broadening horizons: the role of ferroptosis in cancer
Nature Reviews Clinical Oncology, 2021Xin Chen, Rui Kang, Guido Kroemer
exaly