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https://www.readbyqxmd.com/read/28207801/kidney-dysfunction-and-cerebral-microbleeds-in-neurologically-healthy-adults
#1
Sang Hyuck Kim, Dong Wook Shin, Jae Moon Yun, Ji Eun Lee, Jae-Sung Lim, Be Long Cho, Hyung-Min Kwon, Jin-Ho Park
INTRODUCTION: Cerebral microbleed (CMB) is a potent risk factor for overt cerebrovascular disease. Although some studies indicated the possible role of renal dysfunction as a risk factor of CMB, the findings could not be generalized. This study aimed to investigate the association between renal dysfunction and cerebral microbleed (CMB) in neurologically healthy adults. MATERIALS AND METHODS: A total of 2,518 subjects who underwent brain MRI as part of health screening were involved in the study...
2017: PloS One
https://www.readbyqxmd.com/read/28166727/whole-genome-sequencing-of-a-plasmodium-vivax-clinical-isolate-exhibits-geographical-characteristics-and-high-genetic-variation-in-china-myanmar-border-area
#2
Shen-Bo Chen, Yue Wang, Kokouvi Kassegne, Bin Xu, Hai-Mo Shen, Jun-Hu Chen
BACKGROUND: Currently in China, the trend of Plasmodium vivax cases imported from Southeast Asia was increased especially in the China-Myanmar border area. Driven by the increase in P. vivax cases and stronger need for vaccine and drug development, several P. vivax isolates genome sequencing projects are underway. However, little is known about the genetic variability in this area until now. RESULTS: The sequencing of the first P. vivax isolate from China-Myanmar border area (CMB-1) generated 120 million paired-end reads...
February 6, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28161268/source-apportionment-and-a-novel-approach-of-estimating-regional-contributions-to-ambient-pm2-5-in-haikou-china
#3
Baoshuang Liu, Tingkun Li, Jiamei Yang, Jianhui Wu, Jiao Wang, Jixin Gao, Xiaohui Bi, Yinchang Feng, Yufen Zhang, Haihang Yang
A novel approach was developed to estimate regional contributions to ambient PM2.5 in Haikou, China. In this paper, the investigation was divided into two main steps. The first step: analysing the characteristics of the chemical compositions of ambient PM2.5, as well as the source profiles, and then conducting source apportionments by using the CMB and CMB-Iteration models. The second step: the development of estimation approaches for regional contributions in terms of local features of Haikou and the results of source apportionment, and estimating regional contributions to ambient PM2...
February 1, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28157096/only-white-matter-hyperintensities-predicts-post-stroke-cognitive-performances-among-cerebral-small-vessel-disease-markers-results-from-the-tabasco-study
#4
Jeremy Molad, Efrat Kliper, Amos D Korczyn, Einor Ben Assayag, Dafna Ben Bashat, Shani Shenhar-Tsarfaty, Orna Aizenstein, Ludmila Shopin, Natan M Bornstein, Eitan Auriel
BACKGROUND: White matter hyperintensities (WMH) were shown to predict cognitive decline following stroke or transient ischemic attack (TIA). However, WMH are only one among other radiological markers of cerebral small vessel disease (SVD). OBJECTIVE: The aim of this study was to determine whether adding other SVD markers to WMH improves prediction of post-stroke cognitive performances. METHODS: Consecutive first-ever stroke or TIA patients (n = 266) from the Tel Aviv Acute Brain Stroke Cohort (TABASCO) study were enrolled...
February 1, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28145796/identification-of-neurovascular-changes-associated-with-cerebral-amyloid-angiopathy-from-subject-specific-hemodynamic-response-functions
#5
Rebecca J Williams, Bradley G Goodyear, Stefano Peca, Cheryl R McCreary, Richard Frayne, Eric E Smith, G Bruce Pike
Cerebral amyloid angiopathy (CAA) is a small-vessel disease preferentially affecting posterior brain regions. Recent evidence has demonstrated the efficacy of functional MRI in detecting CAA-related neurovascular injury, however, it is unknown whether such perturbations are associated with changes in the hemodynamic response function (HRF). Here we estimated HRFs from two different brain regions from block design activation data, in light of recent findings demonstrating how block designs can accurately reflect HRF parameter estimates while maximizing signal detection...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28143923/cerebral-microbleeds-as-predictors-of-mortality-the-framingham-heart-study
#6
José R Romero, Sarah R Preis, Alexa Beiser, Jayandra J Himali, Ashkan Shoamanesh, Philip A Wolf, Carlos S Kase, Vasan S Ramachandran, Charles DeCarli, Sudha Seshadri
BACKGROUND AND PURPOSE: Cerebral microbleeds (CMB) represent a common magnetic resonance imaging marker of cerebral small vessel disease, increasingly recognized as a subclinical marker of stroke and dementia risk. CMB detection may reflect the cumulative effect of vascular risk burden and be a marker of higher mortality. We investigated the relation of CMB to risk of death in community dwelling participants free of stroke and dementia. METHODS: We evaluated 1963 Framingham Original and Offspring Cohort participants (mean age 67 years; 54% women) with available brain magnetic resonance imaging and mortality data...
January 31, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28130469/small-vessel-disease-burden-in-cerebral-amyloid-angiopathy-without-symptomatic-hemorrhage
#7
Gregoire Boulouis, Andreas Charidimou, Michael J Jessel, Li Xiong, Duangnapa Roongpiboonsopit, Panagiotis Fotiadis, Marco Pasi, Alison Ayres, M Emily Merrill, Kristin M Schwab, Jonathan Rosand, M Edip Gurol, Steven M Greenberg, Anand Viswanathan
OBJECTIVE: Cerebral amyloid angiopathy (CAA) is a common age-related small vessel disease (SVD). Patients without intracerebral hemorrhage (ICH) typically present with transient focal neurologic episodes (TFNEs) or cognitive symptoms. We sought to determine if SVD lesion burden differed between patients with CAA first presenting with TFNEs vs cognitive symptoms. METHODS: A total of 647 patients presenting either to a stroke department (n = 205) or an outpatient memory clinic (n = 442) were screened for eligibility...
January 27, 2017: Neurology
https://www.readbyqxmd.com/read/28129602/titanium-alloy-modified-with-anti-biofouling-zwitterionic-polymer-to-facilitate-formation-of-bio-mineral-layer
#8
Miku Nishida, Tadashi Nakaji-Hirabayashi, Hiromi Kitano, Yoshiyuki Saruwatari, Kazuyoshi Matsuoka
The surface of a titanium (Ti) alloy was modified with a self-assembled monolayer of poly(ethylene glycol) methacrylate phosphate (Phosmer PE). A zwitterionic monomer (carboxymethyl betaine, CMB) could be copolymerized with the surface-bound Phosmer PE due to a flexible linker between the Ti alloy surface and a methacryloyl group of Phosmer PE. The poly(CMB) (PCMB)-modified Ti alloy plate exhibited strong suppression of protein adsorption and cell adhesion, and induced approximately twice the amount of calcium (Ca(2+)) deposition as compared to the unmodified Ti alloy plate...
January 17, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28107655/discrimination-between-naphthacene-and-triphenylene-using-cellulose-tris-4-methylbenzoate-and-cellulose-tribenzoate-a-computational-study
#9
Yusuke Murakami, Tohru Shibata, Kazuyoshi Ueda
The mechanisms of naphthacene and triphenylene discrimination using commercially available cellulose tris(4-methylbenzoate) (CMB) and cellulose tribenzoate (CB) chiral stationary phases were investigated using molecular mechanics calculations. Naphthacene and triphenylene could be separated by liquid chromatography on CMB and CB, with triphenylene being eluted earlier than naphthacene on both phases. However, the corresponding separation factor is much larger for CMB than for CB. The docking of these polycyclic aromatic hydrocarbons to the above polymers suggested that the most important sites of CMB and CB for interacting with these hydrocarbons are located at equivalent positions, featuring a space surrounded by main chain glucose units and benzoyl side chains...
February 1, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28088807/posterior-versus-anterior-circulation-stroke-in-young-adults-a-comparative-study-of-stroke-aetiologies-and-risk-factors-in-stroke-among-young-fabry-patients-sifap1
#10
Bettina von Sarnowski, Ulf Schminke, Ulrike Grittner, Christian Tanislav, Tobias Böttcher, Michael G Hennerici, Turgut Tatlisumak, Jukka Putaala, Manfred Kaps, Franz Fazekas, Christian Enzinger, Arndt Rolfs, Christof Kessler
BACKGROUND: Although 20-30% of all strokes occur in the posterior circulation, few studies have explored the characteristics of patients with strokes in the posterior compared to the anterior circulation so far. Especially data on young patients is missing. METHODS: In this secondary analysis of data of the prospective multi-centre European sifap1 study that investigated stroke and transient ischemic attack (TIA) patients aged 18-55 years, we compared vascular risk factors, stroke aetiology, presence of white matter hyperintensities (WMH) and cerebral microbleeds (CMB) between patients with ischaemic posterior circulation stroke (PCS) and those having suffered from anterior circulation stroke (ACS) based on cerebral MRI...
January 14, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28076478/liver-transplantation-for-carcinoma-hepatocellular-in-s%C3%A3-o-paulo-414-cases-by-the-milan-brazil-criteria
#11
Gustavo Pilotto D Sá, Fernando P P Vicentine, Alcides A Salzedas-Netto, Carla Adriana Loureiro de Matos, Luiz R Romero, Dario F P Tejada, Paulo Celso Bosco Massarollo, Gaspar J Lopes-Filho, Adriano M Gonzalez
Background: The criterion of Milan (CM) has been used as standard for indication of liver transplantation (LTx) for hepatocellular carcinoma (HCC) worldwide for nearly 20 years. Several centers have adopted criteria expanded in order to increase the number of patients eligible to liver transplantation, while maintaining good survival rates. In Brazil, since 2006, the criterion of Milan/Brazil (CMB), which disregards nodules <2 cm, is adopted, including patients with a higher number of small nodules...
November 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/28063711/fine-particulates-over-south-asia-review-and-meta-analysis-of-pm2-5-source-apportionment-through-receptor-model
#12
Nandita Singh, Vishnu Murari, Manish Kumar, S C Barman, Tirthankar Banerjee
Fine particulates (PM2.5) constitute dominant proportion of airborne particulates and have been often associated with human health disorders, changes in regional climate, hydrological cycle and more recently to food security. Intrinsic properties of particulates are direct function of sources. This initiates the necessity of conducting a comprehensive review on PM2.5 sources over South Asia which in turn may be valuable to develop strategies for emission control. Particulate source apportionment (SA) through receptor models is one of the existing tool to quantify contribution of particulate sources...
January 4, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28062861/incidence-locations-and-longitudinal-course-of-cerebral-microbleeds-in-european-moyamoya
#13
Holger Wenz, Ralf Wenz, Máté Maros, Gregory Ehrlich, Mansour Al-Zghloul, Christoph Groden, Alex Förster
BACKGROUND AND PURPOSE: Cerebral microbleeds (cMBs) have previously been linked with especially high incidence in Asian patients with moyamoya together with high tendency to bleed. This, presumably, is characteristic of patients with moyamoya. Herein, we, therefore, investigate retrospectively the frequency, location, and longitudinal course of cMBs in a large German cohort. METHODS: We included all patients with moyamoya who underwent standard magnetic resonance imaging, including T2*-weighted images, in our department between 1998 and 2015...
January 6, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28058837/talarazines-a-e-noncytotoxic-iron-iii-chelators-from-an-australian-mud-dauber-wasp-associated-fungus-talaromyces-sp-cmb-w045
#14
Pabasara Kalansuriya, Michelle Quezada, Breno P Espósito, Robert J Capon
Chemical analysis of an Australian mud dauber wasp-associated fungus, Talaromyces sp. (CMB-W045), yielded five new coprogen siderophores, talarazines A-E (1-5), together with dimerumic acid (6), desferricoprogen (7), and elutherazine B (8). Structures inclusive of absolute configuration were assigned on the basis of detailed spectroscopic analysis and application of the C3 Marfey's method. We report on the noncytotoxic Fe(III) chelation properties of 1-8 and demonstrate that biosynthesis is regulated by available Fe(III) in culture media...
January 6, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28027966/sequence-motifs-associated-with-paternal-transmission-of-mitochondrial-dna-in-the-horse-mussel-modiolus-modiolus-bivalvia-mytilidae
#15
Brent M Robicheau, Sophie Breton, Donald T Stewart
In the majority of metazoans paternal mitochondria represent evolutionary dead-ends. In many bivalves, however, this paradigm does not hold true; both maternal and paternal mitochondria are inherited. Herein, we characterize maternal and paternal mitochondrial control regions of the horse mussel, Modiolus modiolus (Bivalvia: Mytilidae). The maternal control region is 808bp long, while the paternal control region is longer at 2.3kb. We hypothesize that the size difference is due to a combination of repeated duplications within the control region of the paternal mtDNA genome, as well as an evolutionarily ancient recombination event between two sex-associated mtDNA genomes that led to the insertion of a second control region sequence in the genome that is now transmitted via males...
March 20, 2017: Gene
https://www.readbyqxmd.com/read/28004242/targeted-myocardial-delivery-of-gdf11-gene-rejuvenates-the-aged-mouse-heart-and-enhances-myocardial-regeneration-after-ischemia-reperfusion-injury
#16
Guo-Qing Du, Zheng-Bo Shao, Jie Wu, Wen-Juan Yin, Shu-Hong Li, Jun Wu, Richard D Weisel, Jia-Wei Tian, Ren-Ke Li
Ischemic cardiac injury is the main contributor to heart failure, and the regenerative capacity of intrinsic stem cells plays an important role in tissue repair after injury. However, stem cells in aged individuals have reduced regenerative potential and aged tissues lack the capacity to renew. Growth differentiation factor 11 (GDF11), from the activin-transforming growth factor β superfamily, has been shown to promote stem cell activity and rejuvenation. We carried out non-invasive targeted delivery of the GDF11 gene to the heart using ultrasound-targeted microbubble destruction (UTMD) and cationic microbubble (CMB) to investigate the ability of GDF11 to rejuvenate the aged heart and improve tissue regeneration after injury...
January 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/27936213/radiologic-histopathologic-correlation-of-cerebral-microbleeds-using-pre-mortem-and-post-mortem-mri
#17
Sven Haller, Marie-Louise Montandon, François Lazeyras, Max Scheffler, Stephan Meckel, Francois R Herrmann, Panteleimon Giannakopoulos, Enikö Kövari
INTRODUCTION: Cerebral microbleeds (CMB), also known as cerebral microhemorrhages, are small areas of susceptibility on brain magnetic resonance imaging (MRI), that are increasingly detected due to the higher availability of high-field MRI systems and dedicated pulse sequences. The prevalence of CMBs increases in cases with cognitive decline. The current investigation assessed the poorly investigated radiologic-histopathologic correlation of CMBs on MRI. METHODS: The local ethical committee approved the current investigation...
2016: PloS One
https://www.readbyqxmd.com/read/27905358/-do-cerebral-microbleeds-increase-the-risk-of-hemorrhagic-complications-of-thrombolytic-therapy
#18
T A Polyakova, A V Arablinsky, O S Levin
The role of the cerebral microbleeds (CMB) as a potential predictor of hemorrhagic complications of thrombolytic therapy is discussed. CMB are small perivascular hemosiderin deposits in the brain detected by magnetic resonance imaging in gradient echo T2* or SWI sequences. They are associated (along with leukoaraiosis or lacunes) with cerebral microangiopathies. Most often CMB are associated with hypertensive arteriopathy (the main cause of CMB localization) or cerebral amyloid angiopathy (the main cause of cerebral CMB)...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27905355/-cerebral-microbleeds-in-cerebrovascular-and-neurodegenerative-diseases-with-cognitive-impairment
#19
T A Polyakova, O S Levin
AIM: To study a role of cerebral microbleeds (CMB) in the diagnosis of main cerebrovascular and neurodegenerative diseases with cognitive impairment. MATERIAL AND METHODS: CMB were studied in 120 patients with Alzheimer's disease (AD), dementia with Lewy bodies (DLB) and vascular dementia using 1.5T MRI in T2 * gradient echo. An impact of CMB on cognitive functions and the relationship with signs of vascular and neurodegenerative lesions of the brain were studied as well...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27898582/antithrombotic-therapy-in-patients-with-cerebral-microbleeds
#20
Duncan Wilson, David J Werring
PURPOSE OF REVIEW: Cerebral microbleeds (CMBs) are a radiological marker of cerebral small vessel disease corresponding to small haemosiderin foci identified by blood-sensitive MRI. CMBs are common in older community populations, and in individuals with ischaemic stroke or transient ischaemic attack (TIA), and intracerebral haemorrhage (ICH). We summarize how CMBs might contribute to assessing the future risk of ischaemic stroke and ICH to inform antithrombotic (antiplatelet or anticoagulant) decisions...
February 2017: Current Opinion in Neurology
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