Abstract:
:Practical limitations of the patch-clamp technique when recording mechanogated membrane ion channels are considered. Mechanical overstimulation of the patch or the cell from excessive suction/pressure protocols induces morphological and functional changes. In particular, the plasma membrane becomes decoupled from the underlying cytoskeleton to form either membrane blebs (cell-attached) or ghosts (whole cell). As a consequence, a membrane ion channel may show either a decrease or an increase in its native mechanosensitivity or even acquire mechanosensitivity. The effect varies with ion channel and cell type and presumably arises because of a disruption of membrane-cytoskeleton interactions. We consider that such disruptions are a pathological consequence of excessive mechanical stress, either during or after seal formation, rather than an immutable consequence of patch-clamp recording. By careful attention to the suction/pressure protocols during sealing and throughout recording, such artifacts can be avoided.
journal_name
Annu Rev Physioljournal_title
Annual review of physiologyauthors
Hamill OP,McBride DW Jrdoi
10.1146/annurev.physiol.59.1.621subject
Has Abstractpub_date
1997-01-01 00:00:00pages
621-31eissn
0066-4278issn
1545-1585journal_volume
59pub_type
杂志文章,评审abstract::This review focuses on the role of the venous valves in the genesis of thrombus formation in venous thromboembolic disease (VTE). Clinical VTE and the evidence for the valvular origin of venous thrombosis are reviewed. Virchow's triad is then used as a framework for discussion to approach the question posed regarding ...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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journal_title:Annual review of physiology
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更新日期:2008-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:1981-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:1986-01-01 00:00:00
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journal_title:Annual review of physiology
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更新日期:2011-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.ph.58.030196.000521
更新日期:1996-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.physiol.66.032102.112534
更新日期:2004-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.physiol.60.1.385
更新日期:1998-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:2003-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.physiol.70.113006.100526
更新日期:2008-01-01 00:00:00
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journal_title:Annual review of physiology
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更新日期:2006-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.ph.51.030189.002353
更新日期:1989-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.physiol.65.092101.142243
更新日期:2003-01-01 00:00:00
abstract::The ability of fishes, amphibians, and reptiles to survive extremes of oxygen availability derives from a core triad of adaptations: profound metabolic suppression, tolerance of ionic and pH disturbances, and mechanisms for avoiding free-radical injury during reoxygenation. For long-term anoxic survival, enhanced stor...
journal_title:Annual review of physiology
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更新日期:2007-01-01 00:00:00
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journal_title:Annual review of physiology
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更新日期:2010-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:1984-01-01 00:00:00
abstract::The mammalian liver is one of the most regenerative tissues in the body, capable of fully recovering mass and function after a variety of injuries. This factor alone makes the liver unusual among mammalian tissues, but even more atypical is the widely held notion that the method of repair depends on the manner of inju...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
abstract::The cost of living can be measured as an animal's metabolic rate. Basal metabolic rate (BMR) is factorially related to other metabolic rates. Analysis of BMR variation suggests that metabolism is a series of linked processes varying in unison. Membrane processes, such as maintenance of ion gradients, are important cos...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:2000-01-01 00:00:00
abstract::The most striking characteristics of the myenteric plexus are the heterogeneity of its neuronal populations and the complexity of its organization. Myenteric neurons greatly differ in their morphological characteristics, projection patterns, and topographical arrangement within the ganglia. The discovery of histochemi...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:1988-01-01 00:00:00
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journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:2017-02-10 00:00:00
abstract::The question of respiratory factors limiting exercise has been examined in terms of possible limitations arising from the function of gas exchange, the respiratory mechanics, the energetics of the respiratory muscles, or the development of respiratory muscle fatigue. Exercise capacity is curtailed in the presence of m...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.ph.45.030183.002255
更新日期:1983-01-01 00:00:00
abstract::Nearly every cell in the kidney can volume regulate in response to a hypertonic challenge. Some are able to respond immediately to hyperosmotic media by a RVI. Other cells require stimulation prior to exposure to hyperosmolarity to demonstrate RVI. An increase of intracellular osmolytes during RVI usually occurs by an...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:1990-01-01 00:00:00
abstract::The last seven years have been exciting in the world of mucin biology. Molecular analyses of mucin genes and deduced protein structures have provided insight into structural features of mucins and tools with which to examine expression, secretion, and glycosylation, thereby enabling a better understanding of the role ...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.ph.57.030195.003135
更新日期:1995-01-01 00:00:00
abstract::The mammalian kidney is a highly complex organ that requires the precise structural arrangement of multiple cell types for effective function. The need to filter large volumes of plasma at the glomerulus followed by active reabsorption of nearly 99% of that filtrate by the tubules creates vulnerability in both compart...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
doi:10.1146/annurev.physiol.010908.163245
更新日期:2010-01-01 00:00:00
abstract::Hypoxia elicits an array of compensatory responses in animals ranging from protozoa to mammals. Central among these responses is anapyrexia, the regulated decrease of body temperature. The importance of anapyrexia lies in the fact that it reduces oxygen consumption, increases the affinity of hemoglobin for oxygen, and...
journal_title:Annual review of physiology
pub_type: 杂志文章,评审
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更新日期:2002-01-01 00:00:00