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https://www.readbyqxmd.com/read/29785613/neuroinfections-caused-by-fungi
#1
REVIEW
Katarzyna Góralska, Joanna Blaszkowska, Magdalena Dzikowiec
BACKGROUND: Fungal infections of the central nervous system (FIs-CNS) have become significantly more common over the past 2 decades. Invasion of the CNS largely depends on the immune status of the host and the virulence of the fungal strain. Infections with fungi cause a significant morbidity in immunocompromised hosts, and the involvement of the CNS may lead to fatal consequences. METHODS: One hundred and thirty-five articles on fungal neuroinfection in PubMed, Google Scholar, and Cochrane databases were selected for review using the following search words: "fungi and CNS mycoses", CNS fungal infections", "fungal brain infections", " fungal cerebritis", fungal meningitis", "diagnostics of fungal infections", and "treatment of CNS fungal infections"...
May 21, 2018: Infection
https://www.readbyqxmd.com/read/29765415/human-recombinant-peptide-sponge-enables-novel-less-invasive-cell-therapy-for-ischemic-stroke
#2
Michiyuki Miyamoto, Kentaro Nakamura, Hideo Shichinohe, Tomohiro Yamauchi, Masaki Ito, Hisayasu Saito, Masahito Kawabori, Toshiya Osanai, Tasuku Sasaki, Kiyohiro Houkin, Satoshi Kuroda
Bone marrow stromal cell (BMSC) transplantation has the therapeutic potential for ischemic stroke. However, it is unclear which delivery routes would yield both safety and maximal therapeutic benefits. We assessed whether a novel recombinant peptide (RCP) sponge, that resembles human collagen, could act as a less invasive and beneficial scaffold in cell therapy for ischemic stroke. BMSCs from green fluorescent protein-transgenic rats were cultured and Sprague-Dawley rats were subjected to permanent middle cerebral artery occlusion (MCAo)...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29745237/association-between-progestin-only-contraceptive-use-and-cardiometabolic-outcomes-a-systematic-review-and-meta-analysis
#3
Marija Glisic, Sara Shahzad, Stergiani Tsoli, Mahmuda Chadni, Eralda Asllanaj, Lyda Z Rojas, Elizabeth Brown, Rajiv Chowdhury, Taulant Muka, Oscar H Franco
Aims The association between progestin-only contraceptive (POC) use and the risk of various cardiometabolic outcomes has rarely been studied. We performed a systematic review and meta-analysis to determine the impact of POC use on cardiometabolic outcomes including venous thromboembolism, myocardial infarction, stroke, hypertension and diabetes. Methods and results Nineteen observational studies (seven cohort and 12 case-control) were included in this systematic review. Of those, nine studies reported the risk of venous thromboembolism, six reported the risk of myocardial infarction, six reported the risk of stroke, three reported the risk of hypertension and two studies reported the risk of developing diabetes with POC use...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29691787/the-role-of-circle-of-willis-anatomy-variations-in-cardio-embolic-stroke-a-patient-specific-simulation-based-study
#4
Debanjan Mukherjee, Neel D Jani, Jared Narvid, Shawn C Shadden
We describe a patient-specific simulation based investigation on the role of Circle of Willis anatomy in cardioembolic stroke. Our simulation framework consists of medical image-driven modeling of patient anatomy including the Circle, 3D blood flow simulation through patient vasculature, embolus transport modeling using a discrete particle dynamics technique, and a sampling based approach to incorporate parametric variations. A total of 24 (four patients and six Circle anatomies including the complete Circle) models were considered, with cardiogenic emboli of varying sizes and compositions released virtually and tracked to compute distribution to the brain...
April 24, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29691259/transdermal-estradiol-for-the-management-of-refractory-uremic-bleeding
#5
Jimmy Gonzalez, Samantha Bryant, Evelyn R Hermes-DeSantis
PURPOSE: The efficacy and thrombogenicity of transdermal estradiol in the management of refractory uremic bleeding in adults are examined. SUMMARY: Platelet dysfunction from chronic kidney disease may induce uremic bleeding. This type of bleeding may involve the skin, oral and nasal mucosa, gingivae, respiratory system, and gastrointestinal or urinary tract. While the mainstay of treatment for uremic bleeding primarily involves dialysis and use of prohemostatic agents such as desmopressin and erythropoiesis-stimulating agents, certain patients may experience bleeding refractory to these interventions...
May 1, 2018: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/29649974/delayed-and-repeated-intranasal-delivery-of-bone-marrow-stromal-cells-increases-regeneration-and-functional-recovery-after-ischemic-stroke-in-mice
#6
Monica J Chau, Todd C Deveau, Xiaohuan Gu, Yo Sup Kim, Yun Xu, Shan Ping Yu, Ling Wei
BACKGROUND: Stroke is a leading cause of death and disability worldwide, yet there are limited treatments available. Intranasal administration is a novel non-invasive strategy to deliver cell therapy into the brain. Cells delivered via the intranasal route can migrate from the nasal mucosa to the ischemic infarct and show acute neuroprotection as well as functional benefits. However, there is little information about the regenerative effects of this transplantation method in the delayed phase of stroke...
April 12, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29603064/lv-function-validation-of-computer-assisted-interventional-system-for-cardiac-resyncronisation-therapy
#7
Maria Panayiotou, R James Housden, Athanasius Ishak, Alexander Brost, Christopher A Rinaldi, Benjamin Sieniewicz, Jonathan M Behar, Tanja Kurzendorfer, Kawal S Rhode
PURPOSE: Cardiac resynchronisation therapy (CRT) is an established treatment for symptomatic patients with heart failure, a prolonged QRS duration, and impaired left ventricular (LV) function; however, non-response rates remain high. Recently proposed computer-assisted interventional platforms for CRT provide new routes to improving outcomes. Interventional systems must process information in an accurate, fast and highly automated way that is easy for the interventional cardiologists to use...
March 30, 2018: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29602953/indole-3-carbinol-improves-neurobehavioral-symptoms-in-a-cerebral-ischemic-stroke-model
#8
Pankaj Paliwal, Gaurav Chauhan, Deepa Gautam, Debabrata Dash, Shashikant C U Patne, Sairam Krishnamurthy
Stroke is one of the most common causes of death worldwide and also responsible for permanent disability. Ischemic stroke has been found to affect 80% of stroke patients. Recombinant tissue plasminogen activator (rtPA) is the widely used drug for the ischemic stroke with narrow therapeutic window. Indole-3-carbinol (I3C) is a natural compound obtained from brassica species having antithrombotic activity. Middle cerebral artery occlusion (MCAO) model was used followed by reperfusion after 2 h of ischemia for the evaluation of the I3C against ischemic stroke...
March 30, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29572675/cerebral-perforating-artery-disease-characteristics-on-high-resolution-magnetic-resonance-imaging
#9
Jianye Liang, Yiyong Liu, Xiaoshuang Xu, Changzheng Shi, Liangping Luo
PURPOSE: Our aims were to evaluate the feasibility of high-resolution magnetic resonance imaging (HR-MRI) for displaying the cerebral perforating arteries in normal subjects and to discuss the value of HR-MRI for detecting the causes of infarctions in the territory of the lenticulostriate artery (LSA). METHODS: Included in this study were 31 healthy subjects and 28 patients who had infarctions in the territory supplied by the LSA. The T1-weighted imaging (T1WI), T2WI, diffusion-weighted imaging (DWI), and HR-MRI, including 3‑dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) and 3D fast spin-echo T1WI (namely CUBE T1 in GE Healthcare), were applied on a 3-Tesla scanner...
March 23, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29535675/multifunctional-roles-of-the-ventral-stream-in-language-models-advanced-segmental-quantification-in-post-stroke-aphasic-patients
#10
Jie Zhang, Xuehu Wei, Sangma Xie, Zhen Zhou, Desheng Shang, Renjie Ji, Yamei Yu, Fangping He, Yue Du, Xiangming Ye, Benyan Luo
In the dual-route language model, the dorsal pathway is known for sound-to-motor mapping, but the role of the ventral stream is controversial. With the goal of enhancing our understanding of language models, this study investigated the diffusion characteristics of candidate tracts in aphasic patients. We evaluated 14 subacute aphasic patients post-stroke and 11 healthy controls with language assessment and diffusion magnetic resonance imaging. Voxel-based lesion-symptom mapping found multiple linguistic associations for the ventral stream, while automated fiber quantification (AFQ) showed, via reduced fractional anisotropy (FA) and axial diffusivity with increased radial diffusivity (all corrected p  < 0...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29508091/current-treatment-options-headache-related-to-menopause-diagnosis-and-management
#11
REVIEW
Clinton G Lauritsen, Abigail L Chua, Stephanie J Nahas
PURPOSE OF REVIEW: Menopause is a life-changing event in numerous ways. Many women with migraine hold hope that the transition to the climacteric state will coincide with a cessation or improvement of migraine. This assumption is based mainly on common lay perceptions as well as assertions from many in the healthcare community. Unfortunately, evidence suggests this is far from the rule. Many women turn to a general practitioner or a headache specialist for prognosis and management. A natural instinct is to manipulate the offending agent, but in some cases, this approach backfires, or the concern for adverse events outweighs the desire for a therapeutic trial, and other strategies must be pursued...
March 6, 2018: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/29500223/protective-effects-of-the-angiotensin-ii-at-2-receptor-agonist-compound-21-in-ischemic-stroke-a-nose-to-brain-delivery-approach
#12
Douglas M Bennion, Chad H Jones, Alex N Dang, Jacob Isenberg, Justin T Graham, Lena Lindblad, Oliver Domenig, Michael F Waters, Marko Poglitsch, Colin Sumners, Ulrike Muscha Steckelings
Significant neuroprotective effects of angiotensin II type 2 (AT2 ) receptor (AT2 receptor) agonists in ischemic stroke have been previously demonstrated in multiple studies. However, the routes of agonist application used in these pre-clinical studies, direct intracerebroventricular (ICV) and systemic administration, are unsuitable for translation into humans; in the latter case because AT2 receptor agonists are blood-brain barrier (BBB) impermeable. To circumvent this problem, in the current study we utilized the nose-to-brain (N2B) route of administration to bypass the BBB and deliver the selective AT2 receptor agonist Compound 21 (C21) to naïve rats or rats that had undergone endothelin 1 (ET-1)-induced ischemic stroke...
March 15, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29492574/autoregulating-cerebral-tissue-selfishly-exploits-collateral-flow-routes-through-the-circle-of-willis
#13
Flora A Kennedy McConnell, Stephen J Payne
OBJECTIVE: Ischemic stroke is a leading cause of death and disability. Autoregulation and collateral blood flow through the circle of Willis both play a role in preventing tissue infarction. A steady-state model of the cerebral arterial network was used to investigate the interaction of these mechanisms when autoregulation is impaired ipsilateral to an occluded artery. MATERIALS AND METHODS: Twelve structural variants of the circle of Willis were modelled with left internal carotid artery occlusion and coupled with (1) a passive model of the cerebral vascular bed, (2) a steady-state model of an autoregulating cerebral vascular bed, and (3) a model in which the contralateral hemisphere autoregulates and the ipsilateral hemisphere does not...
2018: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/29491140/geographic-modeling-to-quantify-the-impact-of-primary-and-comprehensive-stroke-center-destination-policies
#14
Michael T Mullen, William Pajerowski, Steven R Messé, C Crawford Mechem, Judy Jia, Michael Abboud, Guy David, Brendan G Carr, Roger Band
BACKGROUND AND PURPOSE: We evaluated the impact of a primary stroke center (PSC) destination policy in a major metropolitan city and used geographic modeling to evaluate expected changes for a comprehensive stroke center policy. METHODS: We identified suspected stroke emergency medical services encounters from 1/1/2004 to 12/31/2013 in Philadelphia, PA. Transport times were compared before and after initiation of a PSC destination policy on 10/3/2011. Geographic modeling estimated the impact of bypassing the closest hospital for the closest PSC and for the closest comprehensive stroke center...
April 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29490052/transcatheter-aortic-valve-implantation-and-off-pump-coronary-artery-bypass-surgery-an-effective-hybrid-procedure-in-selected-patients
#15
Benedikt Mayr, Christian Firschke, Magdalena Erlebach, Sabine Bleiziffer, Markus Krane, Michael Joner, Ulf Herold, Christian Nöbauer, Rüdiger Lange, Marcus-André Deutsch
OBJECTIVES: Simultaneous surgical off-pump coronary revascularization and transcatheter aortic valve implantation (TAVI) as a hybrid procedure may be a therapeutic option for patients with a TAVI indication who are not suitable for percutaneous coronary intervention and for patients who have an indication for combined surgical aortic valve implantation and coronary artery bypass grafting but present with a porcelain aorta. Early outcomes of these patients are analysed in this study. METHODS: From February 2011 to April 2017, hybrid TAVI/off-pump coronary artery bypass (OPCAB) was performed in 12 (60%) patients, hybrid TAVI/minimally invasive direct coronary artery bypass in 6 (30%) patients and staged TAVI/OPCAB in 2 (10%) patients...
February 26, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29480050/pharmacokinetics-and-brain-penetration-study-of-chlorogenic-acid-in-rats
#16
Gaurav Kumar, Pankaj Paliwal, Sumedha Mukherjee, Nishant Patnaik, Sairam Krishnamurthy, Ranjana Patnaik
1. The present study is designed to investigate the brain distribution and plasma pharmacokinetics profiles of chlorogenic acid (CGA) after intranasal administration in Charles-Foster rats to evaluate whether the CGA molecules are transported directly via the nose-to-brain path. 2. The CGA is administered intravenously (IV) and intranasally (IN) at the dose of 10 mg/kg. Further, its concentration in the plasma, cerebrospinal fluid (CSF) and the whole brain is analyzed by HPLC-UV method. 3. The study observes that CGA is rapidly absorbed in plasma with tmax of 1 min similar to IV route after IN administration...
March 21, 2018: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/29462049/suprasternal-transcatheter-aortic-valve-replacement-in-patients-with-marginal-femoral-access
#17
Andy C Kiser, Thomas G Caranasos, Mark D Peterson, David M Holzhey, Philipp Kiefer, L Wiley Nifong, Michael A Borger
OBJECTIVE: Recently, the PARTNER 2A trial reported results of transcatheter aortic valve replacement versus surgical aortic valve replacement in 2032 intermediate-risk patients at 2 years. Two hundred thirty-six patients (24%) required an access route other than transfemoral. Compared with transfemoral and surgical aortic valve replacement, nontransfemoral transcatheter aortic valve replacement was associated with a numerically higher rate of death and disabling stroke at 30 days. This underscores the need for a better alternative surgical approach for patients with marginal femoral access...
January 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29459391/los-angeles-motor-scale-to-identify-large-vessel-occlusion-prehospital-validation-and-comparison-with-other-screens
#18
RANDOMIZED CONTROLLED TRIAL
Ali Reza Noorian, Nerses Sanossian, Kristina Shkirkova, David S Liebeskind, Marc Eckstein, Samuel J Stratton, Franklin D Pratt, Robin Conwit, Fiona Chatfield, Latisha K Sharma, Lucas Restrepo, Miguel Valdes-Sueiras, May Kim-Tenser, Sidney Starkman, Jeffrey L Saver
BACKGROUND AND PURPOSE: Prehospital scales have been developed to identify patients with acute cerebral ischemia (ACI) because of large vessel occlusion (LVO) for direct routing to Comprehensive Stroke Centers (CSCs), but few have been validated in the prehospital setting, and their impact on routing of patients with intracranial hemorrhage has not been delineated. The purpose of this study was to validate the Los Angeles Motor Scale (LAMS) for LVO and CSC-appropriate (LVO ACI and intracranial hemorrhage patients) recognition and compare the LAMS to other scales...
March 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29446315/left-ventricular-volume-analysis-as-a-basic-tool-to-describe-cardiac-function
#19
Peter L M Kerkhof, Tatiana Kuznetsova, Rania Ali, Neal Handly
The heart is often regarded as a compression pump. Therefore, determination of pressure and volume is essential for cardiac function analysis. Traditionally, ventricular performance was described in terms of the Starling curve, i.e., output related to input. This view is based on two variables (namely, stroke volume and end-diastolic volume), often studied in the isolated (i.e., denervated) heart, and has dominated the interpretation of cardiac mechanics over the last century. The ratio of the prevailing coordinates within that paradigm is termed ejection fraction (EF), which is the popular metric routinely used in the clinic...
March 1, 2018: Advances in Physiology Education
https://www.readbyqxmd.com/read/29442850/single-stroke-synthesis-of-tin-sulphide-oxide-nanocomposites-within-engineering-thermoplastic-and-their-humidity-response
#20
Dattatraya Adkar, Parag Adhyapak, Uttamrao Mulik, Sandesh Jadkar, Katia Vutova, Dinesh Amalnerkar
SnS nanostructured materials have attracted enormous interest due to their important properties and potential application in low cost solar energy conversion systems and optical devices. From the perspective of SnS based device fabrication, we offer single-stroke in-situ technique for the generation of Sn based sulphide and oxide nanostructures inside the polymer network via polymer-inorganic solid state reaction route. In this method, polyphenylene sulphide (PPS)-an engineering thermoplastic-acts as chalcogen source as well as stabilizing matrix for the resultant nano products...
May 1, 2018: Journal of Nanoscience and Nanotechnology
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