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https://www.readbyqxmd.com/read/29046624/designing-thin-ultrastretchable-electronics-with-stacked-circuits-and-elastomeric-encapsulation-materials
#1
Renxiao Xu, Jung Woo Lee, Taisong Pan, Siyi Ma, Jiayi Wang, June Hyun Han, Yinji Ma, John A Rogers, Yonggang Huang
Many recently developed soft, skin-like electronics with high performance circuits and low modulus encapsulation materials can accommodate large bending, stretching, and twisting deformations. Their compliant mechanics also allows for intimate, nonintrusive integration to the curvilinear surfaces of soft biological tissues. By introducing a stacked circuit construct, the functional density of these systems can be greatly improved, yet their desirable mechanics may be compromised due to the increased overall thickness...
January 26, 2017: Advanced Functional Materials
https://www.readbyqxmd.com/read/29022136/aortic-carotid-intima-media-thickness-and-flow-mediated-dilation-as-markers-of-early-atherosclerosis-in-a-cohort-of-pediatric-patients-with-rheumatic-diseases
#2
Emanuela Del Giudice, Anna Dilillo, Luciana Tromba, Giuseppe La Torre, Sara Blasi, Fabrizio Conti, Franca Viola, Salvatore Cucchiara, Marzia Duse
The aims of this study were to identify the presence of endothelial dysfunction as a marker of early atherosclerosis by measuring aortic and carotid intimal-medial thickness (aIMT and cIMT) and flow-mediated dilation (FMD) and their correlation with traditional and no traditional risk factors for atherosclerosis in children with rheumatic diseases. Thirty-nine patients (mean age 15.3 ± 5.7 years), 23 juvenile idiopathic arthritis, 9 juvenile spondyloarthropathies, 7 connective tissue diseases (mean disease duration and onset respectively 5 ± 3...
October 12, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/29016810/mir-30c-5p-regulates-macrophage-mediated-inflammation-and-pro-atherosclerosis-pathways
#3
Giulio Ceolotto, Alessandra Giannella, Mattia Albiero, Maniselvan Kuppusamy, Claudia Radu, Paolo Simioni, Katia Garlaschelli, Andrea Baragetti, Alberico Luigi Catapano, Elisabetta Iori, Gian Paolo Fadini, Angelo Avogaro, Saula Vigili de Kreutzenberg
Aims: Atherosclerosis is an inflammatory disease wherein cholesterol-loaded macrophages play a major role. MicroRNAs and microparticles propagate inflammatory pathways and are involved in cardiovascular disease. We aimed to screen and validate circulating microRNAs correlated with atherosclerosis development in humans, and to dissect the molecular mechanisms associated with atherogenesis using in vitro and in vivo approaches. Methods and results: A panel of 179 secreted microRNAs was screened in plasma samples of patients with and without atherosclerosis, and validated cross-sectionally and prospectively in patients followed for up to 11 years...
August 14, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29016632/radial-artery-neointimal-hyperplasia-after-transradial-pci-serial-optical-coherence-tomography-volumetric-study
#4
Petr Kala, Jan Kanovsky, Tereza Novakova, Roman Miklik, Otakar Bocek, Martin Poloczek, Petr Jerabek, Lenka Prymkova, Tomas Ondrus, Jiri Jarkovsky, Milan Blaha, Gary S Mintz
AIMS: Transradial catheterization (TRC) is a dominant access site for coronary catheterization and percutaneous coronary interventions (PCI) in many centers. Previous studies reported higher intimal thickness of the radial artery (RA) wall in patients with a previous history of TRC. In this investigation the aim was to assess the intimal changes of RA using the optical coherence tomography (OCT) intravascular imaging in a serial manner. METHODS AND RESULTS: 100 patients with the diagnosis of non-ST-elevation myocardial infarction (nSTEMI) treated by PCI were enrolled (6 patients were excluded from this analysis because of occluded RA at follow-up [2 patients] and insufficient quality of OCT images [4 patients])...
2017: PloS One
https://www.readbyqxmd.com/read/28987961/the-effect-of-genetic-variants-affecting-nk-cell-function-on-cardiovascular-health-and-the-burden-on-cmv
#5
Shelley Waters, Silvia Lee, Jacquita S Affandi, Ashley Irish, Patricia Price
Renal transplant recipients (RTR) display high burdens of cytomegalovirus (CMV) and accelerated cardiovascular change. NK cells can control CMV and may contribute to vascular pathologies. Polymorphisms in genes encoding the inhibitory receptor LILRB1 and its ligand HLA-G, and the activating receptor NKG2C may illuminate the role of NK cells in vascular health and CMV immunity. We assessed 81 healthy adults and 82 RTR >2 years after transplantation. RTR had higher humoral and T-cell responses to CMV, and impaired vascular health...
October 5, 2017: Human Immunology
https://www.readbyqxmd.com/read/28987784/peritoneal-pre-conditioning-reduces-macrophage-marker-expression-in-collagen-containing-engineered-vascular-grafts
#6
Mozhgan Shojaee, Kristin B Wood, Lisa K Moore, Chris A Bashur
Engineered vascular grafts have shown promise as arteriovenous shunts, but they have not yet progressed to clinical trials for coronary arteries <4 mm in diameter such as the coronary arteries. Control over initial biomaterial properties and remodeling are necessary to generate viable grafts. In this study, we blended collagen with a synthetic material, poly(ε-caprolactone), to modulate the post-grafting inflammatory response while avoiding aneurysmal-like dilation and failure that can occur with pure collagen grafts...
October 5, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28953214/clinical-trials-in-menopause
#7
Kathryn I Marko, James A Simon
OBJECTIVE: Clinical trials in menopause have undergone much scrutiny over the years. This has led to significant shifts in the treatment of symptomatic menopause and a substantial impact on women. We aim to delineate the key studies contributing to this controversy and highlight new directions specifically related to menopausal hormone therapy (HT) and vascular disease risk. METHODS: We performed a search of sentinel studies delineating the risks and benefits of HT in otherwise healthy postmenopausal women...
September 25, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28950870/per-os-colchicine-administration-in-cholesterol-fed-rabbits-triglycerides-lowering-effects-without-affecting-atherosclerosis-progress
#8
Vaios Vasileios Kaminiotis, George Agrogiannis, Panagiotis Konstantopoulos, Vasiliki Androutsopoulou, Laskarina Maria Korou, Ioannis S Vlachos, Ismene A Dontas, Despina Perrea, Dimitrios C Iliopoulos
BACKGROUND: Atherosclerosis is a chronic inflammatory disease that is promoted, among others, by pro-inflammatory cytokines such as IL-1β and IL-18 produced by NLRP 3 inflammasome. Development of atherosclerotic lesions is also affected by leptin. Furthermore, inflammasome's action is interfered with other inflammatory diseases, like diabetes. On the other hand, colchicine is reported to act as anti-inflammatory agent inhibiting inflammasome's action and stabilizing atherosclerotic lesions...
September 26, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28937379/nasal-angiomyolipoma-report-of-two-cases-of-an-extremely-rare-entity
#9
Mohammed Abdul Aleem, Ather Fatima, P Kumudachalam, Ramya Priyadarshini
Nasal angiomyolipoma (AML) are extremely rare tumors and so far <15 cases have been reported in the literature, and this is the first instance that Nasal AML is reported from India. We report two cases of AML arising in the nasal cavity described in 60-year-old male and 50-year-old female patient. Grossly, they were well circumscribed, lobulated masses, and microscopically, they were composed of an intimate mixture of mature fat, smooth muscle cells, and thick-walled varying sized blood vessels. Immunoexpression pattern and histopathology were characteristic...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28935983/model-based-vascular-elastography-improves-the-detection-of-flow-induced-carotid-artery-remodeling-in-mice
#10
Vyacheslav A Korshunov, Hexuan Wang, Rifat Ahmed, Deanne M Mickelsen, Qian Zhou, Chen Yan, Marvin M Doyley
Increased arterial thickness measured with ultrasound correlates with future cardiovascular events, but conventional ultrasound imaging techniques cannot distinguish between intima, media, or atherosclerotic plaque in the carotid artery. In this work, we evaluated how well vascular elastography can detect intimal changes in a mouse model of carotid remodeling. We ligated the left external and internal branches of the carotid artery of male FVB mice and performed sham operations for 2 weeks. High-resolution ultrasound imaging accurately detected lower blood velocities and low blood volume flow in the carotid arteries after ligation in FVB mice...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28932820/reduced-arterial-elasticity-due-to-surgical-skeletonization-is-ameliorated-by-abluminal-peg-hydrogel
#11
Karyn G Robinson, Rebecca A Scott, Anne M Hesek, Edward J Woodford, Wafa Amir, Thomas A Planchon, Kristi L Kiick, Robert E Akins
Arteries for bypass grafting are harvested either with neighboring tissue attached or as skeletonized vessels that are free of surrounding tissue. There are significant benefits to skeletonization, but reports suggest that skeletonized vessels may develop structural defects and are at risk for atherosclerosis. We investigated the specific short-term effects of skeletonization on carotid artery biomechanics and microanatomy in a rabbit model. Six carotid arteries were surgically skeletonized. To support healing, three of these received polyethylene glycol hydrogel injected along their exterior surfaces...
June 2017: Bioengineering & Translational Medicine
https://www.readbyqxmd.com/read/28923972/small-genome-symbiont-underlies-cuticle-hardness-in-beetles
#12
Hisashi Anbutsu, Minoru Moriyama, Naruo Nikoh, Takahiro Hosokawa, Ryo Futahashi, Masahiko Tanahashi, Xian-Ying Meng, Takashi Kuriwada, Naoki Mori, Kenshiro Oshima, Masahira Hattori, Manabu Fujie, Noriyuki Satoh, Taro Maeda, Shuji Shigenobu, Ryuichi Koga, Takema Fukatsu
Beetles, representing the majority of the insect species diversity, are characterized by thick and hard cuticle, which plays important roles for their environmental adaptation and underpins their inordinate diversity and prosperity. Here, we report a bacterial endosymbiont extremely specialized for sustaining beetle's cuticle formation. Many weevils are associated with a γ-proteobacterial endosymbiont lineage Nardonella, whose evolutionary origin is estimated as older than 100 million years, but its functional aspect has been elusive...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923645/comparison-of-segmental-versus-longitudinal-intravascular-ultrasound-analysis-for-pediatric-cardiac-allograft-vasculopathy
#13
M A Kuhn, M Burch, R E Chinnock, M J Fenton
Intravascular ultrasound (IVUS) has been routinely used in some centers to investigate cardiac allograft vasculopathy in pediatric heart transplant recipients. We present an alternative method using more sophisticated imaging software. This study presents a comparison of this method with an established standard method. All patients who had IVUS performed in 2014 were retrospectively evaluated. The standard technique consisted of analysis of 10 operator-selected segments along the vessel. Each study was re-evaluated using a longitudinal technique, taken at every third cardiac cycle, along the entire vessel...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28910193/lifestyle-markers-predict-cognitive-function
#14
Steven C Masley, Richard Roetzheim, Gwendolyn Clayton, Angela Presby, Kelley Sundberg, Lucas V Masley
OBJECTIVE: Rates of mild cognitive impairment and Alzheimer's disease are increasing rapidly. None of the current treatment regimens for Alzheimer's disease are effective in arresting progression. Lifestyle choices may prevent cognitive decline. This study aims to clarify which factors best predict cognitive function. METHODS: This was a prospective cross-sectional analysis of 799 men and women undergoing health and cognitive testing every 1 to 3 years at an outpatient center...
September 14, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28859681/factors-affecting-affect-cardiovascular-health-in-indonesian-hiv-patients-beginning-art
#15
Birry Karim, Ika Praseya Wijaya, Rizky Rahmaniyah, Ibnu Ariyanto, Shelley Waters, Riwanti Estiasari, Patricia Price
BACKGROUND: We present a small longitudinal study of how demographic factors and persistent burdens of HIV and cytomegalovirus (CMV) influence cardiovascular health in young adults beginning ART in an inner-city clinic in Jakarta, Indonesia. METHODS: ART-naïve HIV patients [n = 67; aged 31 (19 to 48) years] were enrolled in the JakCCANDO Project. Echocardiography and carotid Doppler ultrasonography were performed before ART (V0) and after 3, 6, and 12 months (V3-12)...
August 31, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28852075/localization-and-orientation-of-xanthophylls-in-a-lipid-bilayer
#16
Wojciech Grudzinski, Lukasz Nierzwicki, Renata Welc, Emilia Reszczynska, Rafal Luchowski, Jacek Czub, Wieslaw I Gruszecki
Xanthophylls (polar carotenoids) play diverse biological roles, among which are modulation of the physical properties of lipid membranes and protection of biomembranes against oxidative damage. Molecular mechanisms underlying these functions are intimately related to the localization and orientation of xanthophyll molecules in lipid membranes. In the present work, we address the problem of localization and orientation of two xanthophylls present in the photosynthetic apparatus of plants and in the retina of the human eye, zeaxanthin and lutein, in a single lipid bilayer membrane formed with dimyristoylphosphatidylcholine...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28845985/hairy-uniform-permanently-ligated-hollow-nanoparticles-with-precise-dimension-control-and-tunable-optical-properties
#17
Yihuang Chen, Di Yang, Young Jun Yoon, Xinchang Pang, Zewei Wang, Jaehan Jung, Yanjie He, Yeu Wei Harn, Ming He, Shuguang Zhang, Guangzhao Zhang, Zhiqun Lin
The ability to tailor the size and shape of nanoparticles (NPs) enables the investigation into the correlation between these parameters and optical, optoelectronic, electrical, magnetic, and catalytic properties. Despite several effective approaches available to synthesize NPs with a hollow interior, it remains challenging to have a general strategy for creating a wide diversity of high-quality hollow NPs with different dimensions and compositions on demand. Herein, we report on a general and robust strategy to in situ crafting of monodisperse hairy hollow noble metal NPs by capitalizing on rationally designed amphiphilic star-like triblock copolymers as nanoreactors...
September 11, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28810593/carotid-atherosclerosis-promotes-the-progression-of-alzheimer-s-disease-a-three-year-prospective-study
#18
Jing Xiang
Although cerebrovascular diseases have been considered as risk factors for cognitive decline and dementia, the associations between atherosclerosis and Alzheimer's disease (AD) have not been fully examined and remain controversial. The aim of this three-year prospective study was to investigate whether arotid artery atherosclerosis accelerates cognitive impairment in AD patients. The association of carotid intimal medial thickness (IMT) with prospective trajectories of cognitive function was assessed among 521 patients with light to moderate AD, and 437 AD patients were followed up annually for 3 years...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28786501/angiogenesis-on-coronary-angiography-is-a-marker-for-accelerated-cardiac-allograft-vasculopathy-as-assessed-by-intravascular-ultrasound
#19
Richard Cheng, Evan P Kransdorf, Janet Wei, Jignesh K Patel, Jon A Kobashigawa, Babak Azarbal
BACKGROUND: Errant neovascularization and coronary artery fistulae (CAF) are frequently observed after cardiac transplantation. The relationship between angiographic neovascularization/CAF and coronary plaque progression is unknown. METHODS: Angiography and intravascular ultrasound were routinely performed at 4-6 weeks and 1-yr post-transplant. Pts were divided into three groups: no angiographic angiogenesis (Group 1), neovascularization only (Group 2), and CAF (Group 3)...
August 8, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28763875/-a-clinical-study-on-the-effect-of-nattokinase-on-carotid-artery-atherosclerosis-and-hyperlipidaemia
#20
N N Ren, H J Chen, Y Li, G W Mcgowan, Y G Lin
Objective: To evaluate the efficacy of oral nattokinase (NK) in the reduction of common carotid artery intimal medial thickness (CCA-IMT) and carotid artery plaque size and in lowering blood lipids, and to explore the underlying mechanism of actions of NK and its potential clinical use. Methods: All enrolled patients were from the Out-Patient Clinic of the Department of TCM at the 3(rd) Affiliated Hospital of Sun Yat-sen University. Using randomised picking method, all patients were randomly assigned to one of two groups, NK and Statin (ST) group...
July 11, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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