Results 41 to 50 of about 762,411 (211)

Chlamydia pneumoniae in atherosclerotic middle cerebral artery [PDF]

, 2001
Background and Purpose—Atherosclerotic middle cerebral arteries are frequent sites of thrombosis, leading to stroke. Previous studies have suggested a role for Chlamydia pneumoniae in the pathogenesis of atherosclerosis.
Virók, Dezső, Intzédy, László, Burián, Katalin, Iványi, Béla, Gönczöl, Éva, Karai, László, Kis, Zoltán, Szabó, Árpád   +7 more
core   +1 more source

Closed cranial window rodent model for investigating hemodynamic response to elevated intracranial pressure

Animal Models and Experimental Medicine, 2021
Background Elevated intracranial pressure (ICP) occurs in several physiological and pathological conditions, yet long‐term sequellae are not common, which implies that blood flow is preserved above ischemic thresholds.
Matt T. Oberdier, James F. Antaki, Alexander Kharlamov, Stephen C. Jones   +3 more
doaj   +1 more source

Genetic Risk, Vascular Function, and Subjective Cognitive Complaints Predict Objective Cognitive Function in Healthy Older Adults: Results From the Brain in Motion Study

Frontiers in Integrative Neuroscience, 2020
Aging is associated with subjective memory complaints. Approximately half of those with subjective memory complaints have objective cognitive impairment.
Amanda V. Tyndall, Amanda V. Tyndall, R. Stewart Longman, R. Stewart Longman, R. Stewart Longman, Tolulope T. Sajobi, Tolulope T. Sajobi, Tolulope T. Sajobi, Jillian S. Parboosingh, Jillian S. Parboosingh, Lauren L. Drogos, Lauren L. Drogos, Margie H. Davenport, Margie H. Davenport, Gail A. Eskes, Gail A. Eskes, David B. Hogan, David B. Hogan, David B. Hogan, David B. Hogan, Michael D. Hill, Michael D. Hill, Michael D. Hill, Marc J. Poulin, Marc J. Poulin, Marc J. Poulin, Marc J. Poulin, Marc J. Poulin   +27 more
doaj   +1 more source

Extreme deepening of the Atlantic overturning circulation during deglaciation [PDF]

, 2010
Glacial terminations during the late Pleistocene epoch are associated with changes in insolation. They are also punctuated by millennial-scale climate shifts, characterized by a weakening and subsequent strengthening of the Atlantic meridional ...
Skinner, L. C., Barker, S., Diz, P., Vautravers, Maryline J., Diz Ferreiro, Paula, Barker, Stephen, Gregor Knorr, Vautravers, M. J., Maryline J. Vautravers, Paula Diz, Skinner, Luke C., Vautravers, Maryline. J., Luke C. Skinner, Diz, Paula, Stephen Barker, Knorr, Gregor   +15 more
core   +2 more sources

Influence of blood pressure on internal carotid artery blood flow during combined propofol-remifentanil and thoracic epidural anesthesia

Journal of Anaesthesiology Clinical Pharmacology, 2022
Background and Aims: Anesthesia often reduces mean arterial pressure (MAP) to a level that may compromise cerebral blood flow. We evaluated whether phenylephrine treatment of anesthesia-induced hypotension affects internal carotid artery (ICA) blood flow
Niels D Olesen, Astrid H Egesborg, Hans-Jørgen Frederiksen, Carl-Christian Kitchen, Lars B Svendsen, Niels V Olsen, Niels H Secher   +6 more
doaj   +1 more source

Cerebrovascular Variants in Posterior Circulation [PDF]

Circulation Research, 2016
Ever since the identification of hypertension around 150 years ago, researchers have struggled to find its cause(s) with only minor successes.1 Essential, or primary, or idiopathic hypertension is historically defined as a rise in blood pressure (BP) without any known causes, which still accounts for ≈95% of all hypertension.2 Whereas multiple risk ...
Dileep R, Yavagal, Kunakorn, Atchaneeyasakul   +1 more
openaire   +2 more sources

Southern ocean circulation [PDF]

, 2005
The Discovery Investigations of the 1930s provided a compelling description of the main elements of the Southern Ocean circulation. Over the intervening years, this has been extended to include ideas on ocean dynamics based on physical principles. In the
Cunningham, S.A., Cunningham, Stuart
core   +1 more source

Evaluation of cerebrovascular reactivity in moyamoya disease using oxygen-dependent magnetic resonance imaging

iScience
Summary: Moyamoya disease (MMD) is a rare cerebrovascular disorder marked by progressive stenosis of the internal carotid arteries. Assessing cerebral hemodynamics, specifically cerebrovascular reactivity (CVR), is vital for MMD management and prognosis.
Shihao He, Xilong Wang, Hongchuan Niu, Ziqi Liu, Junze Zhang, Xiaokuan Hao, Yanru Wang, Zhenyu Zhou, Yuanli Zhao, Rong Wang   +9 more
doaj   +1 more source

Cigarette Smoking Preferentially Affects Intracranial Vessels in Young Males: A Propensity-Score Matching Analysis [PDF]

Neurointervention, 2019
Purpose Cigarette smoking (CS) is one of the major risk factors of cerebral atherosclerotic disease, however, its level of contribution to extracranial and intracranial atherosclerotic stenosis (ECAS and ICAS) was not fully revealed yet.
Yunsun Song, Dongwhane Lee, Dae Chul Suh, Joong-goo Kim, Jae Kyun Kim, Minkyu Han, Hairi Liu, Lingbo Zhao, Eun Hye Kim, Sung Chul Jung, Dong-geun Lee, Hyun Jung Koo, Min-ju Kim, Seunghee Baek, Seon Moon Hwang, Bum Joon Kim, Yeon-Jung Kim, Hong-Jun Cho, Sang Joon Kim, Sang-Beom Jeon, Jong S. Kim   +20 more
doaj   +1 more source

The application of susceptibility⁃weighted imaging in cerebral vascular disease

Chinese Journal of Contemporary Neurology and Neurosurgery, 2022
Susceptibility ⁃weighted imaging (SWI) is a type of MRI developed based on gradient echo sequence (GRE). It is extremely susceptible to paramagnetic substances.
LI Jie⁃yu, YU Lei, SUN Wei⁃ping
doaj   +1 more source