2007
DOI: 10.1113/jphysiol.2006.116061
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Myoglobin translational diffusion in rat myocardium and its implication on intracellular oxygen transport

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Cited by 54 publications
(59 citation statements)
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“…Variants in Mb oxygen affinity also affect the oxygen transport role of Mb. Under normoxic conditions, Mb mutants with a lower oxygen affinity function better at oxygen transport, but under hypoxic conditions, high affinity Mb mutants are advantageous (Lin et al, 2007b;. Increased oxygen affinity could maintain oxygen transport in hypoxic muscle when convective oxygen transport is low, providing greater efficiency (greater fractional extraction) in extracting oxygen from low P O2 arterial blood.…”
Section: Globin Adaptation To Hypoxiamentioning
confidence: 99%
See 1 more Smart Citation
“…Variants in Mb oxygen affinity also affect the oxygen transport role of Mb. Under normoxic conditions, Mb mutants with a lower oxygen affinity function better at oxygen transport, but under hypoxic conditions, high affinity Mb mutants are advantageous (Lin et al, 2007b;. Increased oxygen affinity could maintain oxygen transport in hypoxic muscle when convective oxygen transport is low, providing greater efficiency (greater fractional extraction) in extracting oxygen from low P O2 arterial blood.…”
Section: Globin Adaptation To Hypoxiamentioning
confidence: 99%
“…Because variations in Mb oxygen affinity have a greater effect on oxygen storage and transport when P O2 is low, hypoxic conditions provide the primary selective pressure to preserve Mb function . Recent models of Mb oxygen storage and transport (Lin et al, 2007b; suggest that under conditions of muscular hypoxia, high Mb concentrations and Mb with high oxygen affinity are advantageous for both storage and transport of oxygen.…”
Section: Globin Adaptation To Hypoxiamentioning
confidence: 99%
“…However, many creatures have an inadequate Mb O 2 reservoir to buffer against hypoxemia or ischemia (Chung and Jue, 1996). Even though in vitro evidence supports the theory of Mb-facilitated O 2 diffusion, recent translational diffusion measurements have not determined a Mb mobility sufficient to confer a significant contribution to the O 2 flux in rat myocardium or skeletal muscle (Lin et al, 2007b;Papadopoulos et al, 2001). However, because of its high concentration, Mb appears to have a predominant role in facilitating O 2 diffusion in seal myocytes (Lin et al, 2007a;Ponganis et al, 2008).…”
Section: Introductionmentioning
confidence: 99%
“…ст. (Lin et al, 2007;Gros et al, 2010). Поскольку базовое PO 2 в медленном МВ колеблется вокруг 10 мм рт.…”
Section: роль миоглобина при адаптации к гипоксииunclassified
“…Поскольку названный механизм играет все возрастающую роль по мере приближения нагрузки к максимуму, то его усиление способствует увеличению длительности мышечной работы на уровне аэробно-анаэробного перехода (АнП) и выше. Если мобилизация Mb меха-низма в МВ по сравнению с кардиомиоцитами (Lin et al, 2007) запускается при меньшей гипоксии, то это может быть дополнительным объяснением эффек-тивности использования тренировочной стратегии ЖВ+ТН, а также других комбинаций варьирования воздействия гипоксией в различных вариантах тре-нировочных программ, которые изложены в обзоре (Millet et al, 2010). Эти закономерности дают воз-можность тренеру, варьируя высотами над уровнем моря или сочетаниями FiO 2 , которые приготовлены специальными устройствами, целенаправленно воздействовать на локомоторные мышцы или сер-дечнососудистую систему спортсмена.…”
Section: роль миоглобина при адаптации к гипоксииunclassified