Results 41 to 50 of about 123,796 (172)

NdYAG laser treatment of a glomus tympanicum tumour [PDF]

, 1993
Glomus tympanicum tumours are highly vascular tumours of the middle ear. Their removal by conventional surgical methods requires an extensive procedure in many cases, often with ossicular disarticulation to allow adequate exposure prior to the 'chaotic ...
Grant, HR, Bown, SG, Robinson, PJ
core  

Pulmonary arterial mechanoreceptors mediate sustained sympathoexcitation during high altitude hypoxia in humans

Experimental Physiology, EarlyView.
Abstract Sympathetic nervous system activation is a hallmark of high‐altitude hypoxia, yet the afferent mechanisms remain incompletely defined. We examined the relative contributions of pulmonary arterial mechanoreceptors and carotid chemoreceptors – two excitatory pathways co‐activated by hypoxia – to sustained sympathoexcitation at altitude.
Michiel T. Ewalts, Lydia L. Simpson, Jack S. Talbot, Elliott J. Jenkins, Travis D. Gibbons, Connor A. Howe, Lauren E. Maier, Emily R. Vanden Berg, Alex M. Williams, Philip N. Ainslie, Samuel J. Oliver, Craig D. Steinback, Mike Stembridge, Jonathan P. Moore   +13 more
wiley   +1 more source

A Rare Cause of Red Tympanic Membrane: Jugular Bulb Diverticulum

Ear, Nose & Throat Journal, 2023
Significance Statement Pulsatile tinnitus with erythematous tympanic membrane mass suggests vascular pathologies such as dural arteriovenous fistula, glomus tympanicum, or aberrant carotid artery. Jugular bulb aneurysmatic diverticulum is rare but should
Boon Chin Te MRCSed, Kai Ping Ong MD, Izny Hafiz Zainon MS (ORL-HNS)   +2 more
doaj   +1 more source

Cellular basis of learning and memory in the carotid body

Frontiers in Synaptic Neuroscience, 2022
The carotid body is the primary peripheral chemoreceptor in the body, and critical for respiration and cardiovascular adjustments during hypoxia.
Olivia M. S. Gold, Emma N. Bardsley, Anna P. Ponnampalam, Audrys G. Pauza, Julian F. R. Paton   +4 more
doaj   +1 more source

Elevated carotid body tonic activity contributes to ventilatory acclimatization and de‐acclimatization to high altitude at rest and during exercise

The Journal of Physiology, EarlyView.
Abstract figure legend Participants spent 13 days at high altitude (3800 m), where the reduced inspired oxygen pressure (↓PiO2$ \downarrow {P_{{\mathrm{i}}{{\mathrm{O}}_2}}}$) which elicited ventilatory acclimatization and increased inhibition of ventilation by transient hyperoxia (ΔV̇E$\Delta {\dot V_{\mathrm{E}}}$).
Ayechew A. Getu, L. Madden Brewster, Travis D. Gibbons, James D. Anholm, Michael Stembridge, Philip N. Ainslie, Jay M. J. R. Carr   +6 more
wiley   +1 more source

Endovascular treatment with angioplasty or stenting versus endarterectomy in patients with carotid artery stenosis in the Carotid And Vertebral Artery Transluminal Angioplasty Study (CAVATAS): long-term follow-up of a randomised trial [PDF]

, 2009
Endovascular treatment (angioplasty with or without stenting) is an alternative to carotid endarterectomy for carotid artery stenosis but there are scarce long-term efficacy data showing that it prevents stroke.
Mccollum, Charles, Sandercock, Peter, Ederle, Jörg, Gaines, Peter A., Martin M Brown, Sandercock, P, Cavatas Investigators,, Jonathan D Beard, Brown, Martin M., Venables, Graham S, Beard, Jonathan D., Markus, Hugh S, Dobson, Joanna, Graham S Venables, Andrew Clifton, Featherstone, RL, Bonati, Leo H., Venables, Graham S., Gaines, Peter A, Roland L Featherstone, Brown, MM, Peter Sandercock, Markus, HS, Peter A Gaines, Venables, GS, Bonati, LH, CAVATAS Investigators, Joanna Dobson, Dobson, J, Gaines, PA, Bonati, Leo H, Hugh S Markus, Clifton, Andrew, Beard, JD, Beard, Jonathan D, Brown, Martin M, Clifton, A, Featherstone, Roland L., ?, ?, Sellar, Robin, Jörg Ederle, Ederle, J, Featherstone, Roland L, Markus, Hugh S., Leo H Bonati   +44 more
core   +1 more source

Carotid body tumor imaging: MRI, ultrasound, and elastography with surgical management

Radiology Case Reports
A carotid body tumor is an uncommon tumor that develops from the carotid body. Carotid body tumor, also called paraganglioma, is often benign in nature and mostly found in the neck.
Devyansh Nimodia, MBBS, Shivali V. Kashikar, MD, Pratapsingh Hanuman Parihar, MD, Vadlamudi Nagendra, MBBS, Sakshi Dudhe, MBBS   +4 more
doaj   +1 more source

Breathing irregularities and postnatal hypoxaemia in an experimental model of essential hypertension

The Journal of Physiology, EarlyView.
Abstract figure legend Neonatal spontaneously hypertensive rats (SHRs) exhibit inherent respiratory dysfunction in early life, including oscillatory breathing patterns and apnoeic events that cause oxygen desaturation and brain hypoxia, in addition to an impaired hypoxic ventilatory response.
Beatriz N. Vieira, Letícia R. Mendes, Sarah G. Mariano, Isabela P. Leirão, Emilson D. Pereira‐Junior, Milede H. Saraiva Paes, Pedro L. Katayama, Daniel B. Zoccal   +7 more
wiley   +1 more source

Transduction mechanisms in carotid body: glomus cells, putative neurotransmitters, and nerve endings

, 1980
Carotid body chemoreceptors are activated by low PO2, high PCO2, acidity, increased temperature, and tonicity. These receptors are important in homeostasis and mediate their reflex effects on the CNS through sensory discharges of the carotid (sinus ...
S. J. Fidone, C. Eyzaguirre
core   +1 more source

Molecular markers from the mitochondrial genome of arbuscular mycorrhizal fungi (Glomeromycota) : evolutionary dynamics and application [PDF]

, 2010
The arbuscular mycorrhizal fungi (AMF) are obligate biotrophic symbionts with a key role in ecosystem functioning by their main contribution to plant mineral nutrient uptake. A fragment of the mitochondrial large subunit gene of ribosomal RNA (mtLSU) has
Thiéry, Odile
core   +1 more source