• Filter By:
• Specialty
• Source
• Condition
• Cancer
• Infectious Disease
• Drug
• Training
• Management
• Procedure
• Therapy
• Vaccine
• Nutrition
• Country

Intranasal Losartan Decreases Perivascular Beta Amyloid, Inflammation, and the Decline of Neurogenesis in Hypertensive Rats
AbstractThe contribution of the local angiotensin receptor system to neuroinflammation, impaired neurogenesis, and amyloid beta (A β) accumulation in Alzheimer’s disease (AD) and in hypertension is consistent with the remarkable neuroprotection provided by angiotensin receptor blockers (ARBs) independent of their blood pressure-lowering effect. Considering the causal relationship between hypertension and AD and that targetin g cerebrovascular pathology with ARBs does not necessarily require their systemic effects, we tested intranasal losartan in the rat model of chronic hypertension (spontaneously hypertensive stroke-p...
Source: Neurotherapeutics - February 22, 2019 Category: Neurology Source Type: research

Hemilingual Angioedema after Thrombolysis in a Patient on an Angiotensin II Receptor Blocker
We report a case of a 60-year-old male presenting with hyperacute ischemic stroke developing hemilingual edema after thrombolysis. He was previously maintained on an angiotensin II receptor blocker (ARB), losartan. The swelling resolved over 2 days with immediate administration of intravenous steroids and antihistamine drugs.
Source: Journal of Stroke and Cerebrovascular Diseases - February 13, 2019 Category: Neurology Authors: Jose Danilo Bengzon Diestro, Lady Scarlette Pacsi Sedano, Nikolai Gil Diwa Reyes, Maria Cristina Zarsadias San Jose Tags: Case Report Source Type: research

Commonalities in epileptogenic processes from different acute brain insults: Do they translate?
Summary The most common forms of acquired epilepsies arise following acute brain insults such as traumatic brain injury, stroke, or central nervous system infections. Treatment is effective for only 60%‐70% of patients and remains symptomatic despite decades of effort to develop epilepsy prevention therapies. Recent preclinical efforts are focused on likely primary drivers of epileptogenesis, namely inflammation, neuron loss, plasticity, and circuit reorganization. This review suggests a path to identify neuronal and molecular targets for clinical testing of specific hypotheses about epileptogenesis and its prevention or...
Source: Epilepsia - December 1, 2017 Category: Neurology Authors: Pavel Klein, Raymond Dingledine, Eleonora Aronica, Christophe Bernard, Ingmar Bl ümcke, Detlev Boison, Martin J. Brodie, Amy R. Brooks‐Kayal, Jerome Engel, Patrick A. Forcelli, Lawrence J. Hirsch, Rafal M. Kaminski, Henrik Klitgaard, Katja Kobow, Danie Tags: CRITICAL REVIEW AND INVITED COMMENTARY Source Type: research

Systolic Blood Pressure Control and Mortality After Stroke in Hypertensive Patients Clinical Sciences
Conclusions— Lower achieved SBP (<144 mm Hg) is associated with a significantly increased risk of cardiovascular and all-cause mortality after initial stroke in hypertensive patients during short-term follow-up. Further study is required to determine ideal SBP goals after stroke. Clinical Trial Registration— URL: http://clinicaltrials.gov/. Unique identifier: NCT00338260.
Source: Stroke - July 27, 2015 Category: Neurology Authors: Okin, P. M., Kjeldsen, S. E., Devereux, R. B. Tags: Cerebrovascular disease/stroke, Epidemiology Clinical Sciences Source Type: research

BMP signaling modulation attenuates cerebral arteriovenous malformation formation in a vertebrate model
Journal of Cerebral Blood Flow & Metabolism advance online publication, July 23 2014. doi:10.1038/jcbfm.2014.134 Author: Brian P Walcott
Source: Journal of Cerebral Blood Flow - July 23, 2014 Category: Neurology Authors: Brian P Walcott Tags: arteriovenous malformation losartan medical therapy stroke zebrafish Source Type: research

Losartan prevents acquired epilepsy via TGF‐β signaling suppression
Abstract Objective: Acquired epilepsy is frequently associated with structural lesions following trauma, stroke and infections. While seizures are often difficult to treat, there is no clinically applicable strategy to prevent the development of epilepsy in patients at risk. We have recently shown that vascular injury is associated with activation of albumin‐mediated transforming growth factor β (TGF‐β) signaling, and followed by local inflammatory response and epileptiform activity ex vivo. Here we investigated albumin‐mediated TGF‐β signaling and tested the efficacy of blocking the TGF‐β pathway in preventi...
Source: Annals of Neurology - February 1, 2014 Category: Neurology Authors: Guy Bar‐Klein, Luisa P. Cacheaux, Lyn Kamintsky, Ofer Prager, Itai Weissberg, Karl Schoknecht, Paul Cheng, Soo Young Kim, Lydia Wood, Uwe Heinemann, Daniela Kaufer, Alon Friedman Tags: Research Article Source Type: research

Roles of Hypertension in the Rupture of Intracranial Aneurysms Basic Sciences
Conclusions— Normalization of blood pressure after aneurysm formation prevented aneurysmal rupture in mice. In addition, we found that the inhibition of the local renin–angiotensin system independent from the reduction of blood pressure can prevent aneurysmal rupture.
Source: Stroke - January 27, 2014 Category: Neurology Authors: Tada, Y., Wada, K., Shimada, K., Makino, H., Liang, E. I., Murakami, S., Kudo, M., Kitazato, K. T., Nagahiro, S., Hashimoto, T. Tags: Cerebrovascular disease/stroke, Animal models of human disease, Cerebral Aneurysm, AVM, & Subarachnoid hemorrhage, Other Stroke Treatment - Medical Basic Sciences Source Type: research

Crosstalk between the angiotensin and endothelin-system in the cerebrovasculature.
Abstract Investigations have shown a multifactorial process as cause for the poor outcome after subarachnoid hemorrhage (SAH), including inflammation, early brain injury, cortical spreading depression, lack of cerebral autoregulation and the cerebral vasospasm (CVS) itself. Losartan may have a beneficial effect after SAH - preventing CVS, restoring cerebral autoregulation, reducing inflammation and early brain injury. Also some data is available for an AT1-receptor-upregulation and upregulated gene expression after subarachnoid hemorrhage, but the functional role of angiotensin on the cerebrovascular contractility...
Source: Current Neurovascular Research - August 30, 2013 Category: Neurology Authors: Konczalla J, Wanderer S, Mrosek J, Schuss P, Platz J, Güresir E, Seifert V, Vatter H Tags: Curr Neurovasc Res Source Type: research

Multimodal Imaging in Rats Reveals Impaired Neurovascular Coupling in Sustained Hypertension Basic Sciences
Conclusions— Impaired neurovascular coupling in the SHR evolves upon sustained hypertension. Antihypertensive monotherapy using verapamil or losartan is not sufficient to abolish this functional impairment. These deficits in neurovascular coupling in response to sustained hypertension might contribute to accelerate progression of neurodegenerative diseases in chronic hypertension.
Source: Stroke - June 24, 2013 Category: Neurology Authors: Calcinaghi, N., Wyss, M. T., Jolivet, R., Singh, A., Keller, A. L., Winnik, S., Fritschy, J.-M., Buck, A., Matter, C. M., Weber, B. Tags: Animal models of human disease, Brain Circulation and Metabolism, Other imaging Basic Sciences Source Type: research