Results 41 to 50 of about 531 (150)

Aging enhances autonomic support of blood pressure in women

open access: yes, 2014
The autonomic nervous system plays a central role in both acute and chronic blood pressure regulation in humans. The activity of the sympathetic branch of the autonomic nervous system is positively associated with peripheral resistance, an important ...
Eisenach, John H   +7 more
core   +1 more source

Pyramidal tract responses (PTR) during hypoxia and hypotension.

open access: yes, 1976
In rats with unilateral carotid artery ligation pyramidal tract responses were studied during hypoxia and during trimethaphan-induced hypotension. Observations on EEG activity during hypoxia suggest that unilateral carotid artery ligation produces a more
W C Wiederholt, R Sutter
core   +1 more source

Evidence that autonomic mechanisms contribute to the adaptive increase in insulin secretion during dexamethasone-induced insulin resistance in humans.

open access: yes, 2008
AIMS/HYPOTHESIS: This study examined whether autonomic mechanisms contribute to adaptively increased insulin secretion in insulin-resistant humans, as has been proposed from studies in animals.
Ahrén, Bo
core   +2 more sources

Increased sympathetic activation in idiopathic orthostatic intolerance: role of systemic adrenoreceptor sensitivity

open access: yes, 2002
Idiopathic orthostatic intolerance (OI) is characterized by adrenergic symptoms with standing. Changes in central sympathetic tone or in adrenoreceptor sensitivity could contribute to this syndrome.
Shannon, J.R.   +4 more
core   +1 more source

Autonomic Mediation of Glucagon Secretion During Insulin-Induced Hypoglycemia in Rhesus Monkeys [PDF]

open access: yes, 1996
Autonomic activation mediates the majority of the increase of glucagon secretion during insulin-induced hypoglycemia in several species including dogs, mice, and rats.
Havel, Peter J, Valverde, Celia
core   +1 more source

Effects of some pharmacologic agents on cold tolerance of dogs

open access: yes, 1962
Eight unanesthetized, shaved dogs were studied in 32 experiments for their thermal and metabolic responses to 90 min of exposure to 6 C during peripheral vasoconstriction (metaraminol bitartrate, 0.3 mg/kg), peripheral vasodilatation (trimethaphan ...
Clark M. Blatteis
core   +1 more source

Preserved functional autonomic phenotype in adult mice overexpressing moderate levels of human alpha-synuclein in oligodendrocytes [PDF]

open access: yes, 2014
Mice overexpressing human alpha-synuclein in oligodendrocytes (MBP1-alpha-syn) recapitulate some key functional and neuropathological features of multiple system atrophy (MSA).
Diedrich, A.   +9 more
core   +1 more source

Catechol-O-methyltransferase and blood pressure in humans

open access: yes, 2002
BACKGROUND: Whether catechol-O-methyltransferase (COMT), the enzyme that metabolizes extraneuronal norepinephrine, contributes to blood pressure regulation in humans is unknown METHODS AND RESULTS: We studied incremental doses of the COMT inhibitor ...
Arnold, G.   +10 more
core   +1 more source

The Effects of Trimethaphan on Responses of the Cardiovascular System During Endotracheal Intubation

open access: yes, 1979
의학과/석사[영문] [한글] 전신마취 하에서 직접 후두경삽입과 기관내 삽관은 정상환자에서 심혈관계에 자극을 가 하여서 동맥혈압과 심박동수의 증가를 가져오는데(Reid 및 Brace 1940: Burstein 등 1950 : King 등 1951: Take-shima등 1964: Forbes 및 Dally 1970) 이는 기도의 기계적 자극에 위한 경부의 원심성 교감신경섬유의 기능항진으로 인해 일어난다고 하며(Tomori 및 Widdi ...
백상기
core  

Changes in Pial Vessel Diameter during Hemorrhagic or Drug-induced Hypotension in the Cat [PDF]

open access: yes, 1983
Changes in pial vessel diameter during hypotension induced by hemorrhage, trimethaphan, or nitropusside were studied in 21 cats anesthetized with halothane (0.9%, end-tidal).
Akimoto, Yonei
core  

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