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https://www.readbyqxmd.com/read/28823112/miniaturized-pulsed-laser-source-for-time-domain-diffuse-optics-routes-to-wearable-devices
#1
Laura Di Sieno, Jan Nissinen, Lauri Hallman, Edoardo Martinenghi, Davide Contini, Antonio Pifferi, Juha Kostamovaara, Alberto Dalla Mora
We validate a miniaturized pulsed laser source for use in time-domain (TD) diffuse optics, following rigorous and shared protocols for performance assessment of this class of devices. This compact source (12×6  mm2) has been previously developed for range finding applications and is able to provide short, high energy (∼100  ps, ∼0.5  nJ) optical pulses at up to 1 MHz repetition rate. Here, we start with a basic level laser characterization with an analysis of suitability of this laser for the diffuse optics application...
August 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28813496/uneven-distribution-of-enamel-dentine-and-cementum-in-cheek-teeth-of-domestic-horses-equus-caballus-a-micro-computed-tomography-study
#2
Lauritz Martin Englisch, Kathrin Kostrzewa, Susan Kopke, Klaus Failing, Carsten Staszyk
BACKGROUND: Hypsodont equine cheek teeth possess large dental crowns, resting partly in the bony alveolus. Over a horse's life cheek teeth erupt continuously to compensate for occlusal wear of 3-4 mm per year. Parts of the crown initially resting in the bony alveolus become progressively exposed at the occlusal surface with time. Hitherto, it is unclear whether the typical structure of the equine occlusal surface, composed of a complex arrangement of enamel, dentin and cementum, remains constant or undergoes structural changes with age...
2017: PloS One
https://www.readbyqxmd.com/read/28811382/an-engineered-s1p-chaperone-attenuates-hypertension-and-ischemic-injury
#3
Steven L Swendeman, Yuquan Xiong, Anna Cantalupo, Hui Yuan, Nathalie Burg, Yu Hisano, Andreane Cartier, Catherine H Liu, Eric Engelbrecht, Victoria Blaho, Yi Zhang, Keisuke Yanagida, Sylvain Galvani, Hideru Obinata, Jane E Salmon, Teresa Sanchez, Annarita Di Lorenzo, Timothy Hla
Endothelial dysfunction, a hallmark of vascular disease, is restored by plasma high-density lipoprotein (HDL). However, a generalized increase in HDL abundance is not beneficial, suggesting that specific HDL species mediate protective effects. Apolipoprotein M-containing HDL (ApoM(+)HDL), which carries the bioactive lipid sphingosine 1-phosphate (S1P), promotes endothelial function by activating G protein-coupled S1P receptors. Moreover, HDL-bound S1P is limiting in several inflammatory, metabolic, and vascular diseases...
August 15, 2017: Science Signaling
https://www.readbyqxmd.com/read/28782464/nimodipine-activates-neuroprotective-signaling-events-and-inactivates-autophages-in-the-vcid-rat-hippocampus
#4
Ming Hu, Zhijuan Liu, Peiyuan Lv, Hebo Wang, Yifei Zhu, Qianqian Qi, Jing Xu, Lei Gao
BACKGROUND: Autophagy and phosphatidylinositol 3-kinase (PI3K)/Akt kinase pathways are implicated in cognitive decline associated with cerebrovascular lesions. This decline is reflected in the concept of vascular cognitive impairment and dementia (VCID). However, the underlying molecular mechanism and specific details regarding these types of cognitive deficits induced by chronic brain hypoperfusion have not been elucidated. METHODS: We designed a method to evaluate these mechanisms...
August 7, 2017: Neurological Research
https://www.readbyqxmd.com/read/28782099/knowledge-perceptions-and-clinical-application-of-the-shortened-dental-arch-concept-among-malaysian-government-dentists
#5
Siti Kamilah Mohd Kasim, Ishak Abdul Razak, Zamros Yuzadi Mohd Yusof
AIM: To assess the knowledge and perceptions of Malaysian government dentists regarding the shortened dental arch (SDA) concept and its application in clinical practice. BACKGROUND: The SDA concept refers to a specific type of dentition with intact anterior teeth and a reduction in posterior occlusal pairs. Dentists' knowledge and perceptions of the SDA concept can influence its application in clinical practice. METHODS: A self-administered questionnaire on the SDA concept was distributed to 326 government dentists in the states of Selangor and Kuala Lumpur, Malaysia...
August 7, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28748354/pressure-directed-embolization-of-hepatic-arteries-in-a-porcine-model-using-a-temporary-occlusion-balloon-microcatheter-proof-of-concept
#6
Steven C Rose, Gregory D Halstead, Kazim H Narsinh
PURPOSE: The purpose of this project was to test the hypothesis that temporary hepatic artery balloon occlusion would favorably alter the distribution of particle emboli within the targeted and nontargeted downstream vascular compartments. MATERIALS AND METHODS: Five Yorkshire pigs underwent transfemoral placement of balloon microcatheters into selected segmental hepatic arteries. A collection catheter was surgically introduced into a downstream hepatic artery branch...
July 26, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28737565/use-of-resuscitative-endovascular-balloon-occlusion-of-the-aorta-in-a-multidisciplinary-approach
#7
Carolina Nilsson, Linda Bilos, Tal Hörer, Artai Pirouzram
The usage of resuscitative endovascular balloon occlusion of the aorta, also known as aortic balloon occlusion, is an emerging method for bleeding control as a bridge to definitive treatment in trauma management. We describe a trauma case where resuscitative endovascular balloon occlusion of the aorta was used as part of the EndoVascular hybrid Trauma and bleeding Management concept to facilitate transient hemorrhage control and thereby to permit damage control surgery. The case is an illustration of the adoption of a multidisciplinary approach...
July 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28729640/radiation-induced-liver-disease-current-understanding-and-future-perspectives
#8
REVIEW
Jieun Kim, Youngmi Jung
Although radiotherapy (RT) is used for the treatment of cancers, including liver cancer, radiation-induced liver disease (RILD) has emerged as a major limitation of RT. Radiation-induced toxicities in nontumorous liver tissues are associated with the development of numerous symptoms that may limit the course of therapy or have serious chronic side effects, including late fibrosis. Although the clinical characteristics of RILD patients have been relatively well described, the understanding of RILD pathogenesis has been hampered by a lack of reliable animal models for RILD...
July 21, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28728719/the-surgical-treatment-of-coronary-artery-occlusive-disease-modern-treatment-strategies-for-an-age-old-problem
#9
REVIEW
Thomas A Schwann
Coronary artery disease remains a formidable challenge to clinicians. Percutaneous interventions and surgical techniques for myocardial revascularization continue to improve. Concurrently, in light of emerging data, multiple practice guidelines have been published guiding clinicians in their therapeutic decisions. The multidisciplinary Heart Team concept needs to be embraced by all cardiovascular providers to optimize patient outcomes.
August 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28713744/access-osteotomy-in-the-maxillofacial-skeleton
#10
REVIEW
K Kamalpathey, Maj Gen N K Sahoo, Col P K Chattopadhyay, Maj Yuvraj Issar
Surgical accesses for the facial skeleton are based on the concept of modular osteotomies. Various techniques and combination of osteotomies facilitate access to the most inaccessible tumors of craniomaxillofacial region. Most appropriate surgical access is determined by considering size, location, extension of the tumor, and experience of the surgical team. These are primarily used for tumors in the nasopharynx or the skull base. The aim of this paper is to review surgical accesses that aid in removal of inaccessible tumors of craniomaxillofacial region with series of cases operated in the Department of Oral and Maxillofacial Surgery, Armed Forces Medical College, Pune, India, between July 2008 and June 2010...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28703572/development-of-epigallocatechin-3-gallate-encapsulated-nanohydroxyapatite-mesoporous-silica-for-therapeutic-management-of-dentin-surface
#11
Jian Yu, Hongye Yang, Kang Li, Hongyu Ren, Jinmei Lei, Cui Huang
In dental clinic, unsatisfactory management of the dentin surface after dentin exposure often leads to the occurrence of dentin hypersensitivity and caries. Current approaches can occlude the tubules on the dentin surface to relieve dentin hypersensitivity; however, the blocked tubules are generally weak in combating daily tooth erosion and abrasion. Moreover, cariogenic bacteria, such as Streptococcus mutans, produce biofilm on the dentin surface, causing caries and compromising the tubules' sealing efficacy...
August 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28697751/influence-of-functional-dentition-on-satisfaction-with-oral-health-and-impacts-on-daily-performance-among-brazilian-adults-a-population-based-cross-sectional-study
#12
Loliza Luiz Figueiredo Houri Chalub, Raquel Conceição Ferreira, Andréa Maria Duarte Vargas
BACKGROUND: Dental esthetics, chewing and speech should be preserved in a dentition denominated functional and are closely related to satisfaction with oral health (SOH), impacts caused by oral problems and have a possible association with Oral Health-Related Quality of Life. Thus, the purpose of the present study was to investigate the influence of different concepts of functional dentition (FD) on both SOH and impacts on daily performance (IDP) among Brazilian adults. METHODS: A cross-sectional study was conducted with 9564 adults (35-44 years)...
July 11, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28689986/quaternion-based-study-of-angular-velocity-of-the-cardiac-vector-during-myocardial-ischaemia
#13
Pablo Daniel Cruces, Pedro David Arini
BACKGROUND: Early detection of acute ischaemia through non-invasive methods remains a challenge in health research. Ischaemic condition caused by a decrease in the blood supply in a cardiac region induces hypoxia and metabolic abnormalities that contribute to the electrical instability of the heart and to the development of slow conduction in damaged tissue. METHODS: Herein, a percutaneous transluminal coronary angiography (PTCA) is considered as a model of supply ischaemia...
June 30, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28689342/superselective-transvenous-embolization-with-onyx-and-n-bca-for-vein-of-galen-aneurysmal-malformations-with-restricted-transarterial-access-safety-efficacy-and-technical-aspects
#14
Kirill Orlov, Anton Gorbatykh, Vadim Berestov, Timur Shayakhmetov, Dmitry Kislitsin, Pavel Seleznev, Nikolay Strelnikov
PURPOSE AND METHODS: Superselective transvenous embolization (TVE) with liquid embolic agents is a new concept in treatment of vein of Galen aneurysmal malformations (VGAM). We performed ten sessions of TVE in VGAM patients with restricted transarterial access. In this paper, we assessed clinical and angiographic outcomes of the proposed treatment and discussed three different TVE techniques with regard to morphology of the shunt and outflow tract. Safety and avoidance-of-complication tips were also discussed...
July 8, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28674513/isolated-striatocapsular-infarcts-after-endovascular-treatment-of-acute-proximal-middle-cerebral-artery-occlusions-prevalence-enabling-factors-and-clinical-outcome
#15
Johannes Kaesmacher, Thomas Huber, Manuel Lehm, Claus Zimmer, Kathleen Bernkopf, Silke Wunderlich, Tobias Boeckh-Behrens, Nathan W Manning, Justus F Kleine
BACKGROUND: Striatocapsular infarcts (SCIs) are defined as large subcortical infarcts involving the territory of more than one lenticulostriate artery. SCI without concomitant ischemia in the more distal middle cerebral artery (MCA) territory [isolated SCI (iSCI)] has been described as a rare infarct pattern. The purpose of this study was to assess the prevalence of iSCI in patients treated with endovascular thrombectomy (ET), to evaluate baseline and procedural parameters associated with this condition, and to describe the clinical course of iSCI patients...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28673870/fluorescence-lifetime-imaging-ophthalmoscopy
#16
REVIEW
Chantal Dysli, Sebastian Wolf, Mikhail Y Berezin, Lydia Sauer, Martin Hammer, Martin S Zinkernagel
Imaging techniques based on retinal autofluorescence have found broad applications in ophthalmology because they are extremely sensitive and noninvasive. Conventional fundus autofluorescence measures fluorescence intensity of retinal fluorophores. It mainly derives its signal from lipofuscin at the level of the retinal pigment epithelium. Fundus autofluorescence, however, can not only be characterized by the spatial distribution of the fluorescence intensity or emission spectrum, but also by a characteristic fluorescence lifetime function...
June 30, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28662085/metabolomic-profiling-to-characterize-acute-intestinal-ischemia-reperfusion-injury
#17
Rachel G Khadaroo, Thomas A Churchill, Victor Tso, Karen L Madsen, Chris Lukowski, Saad Y Salim
Sepsis and septic shock are the leading causes of death in critically ill patients. Acute intestinal ischemia/reperfusion (AII/R) is an adaptive response to shock. The high mortality rate from AII/R is due to the severity of the disease and, more importantly, the failure of timely diagnosis. The objective of this investigation is to use nuclear magnetic resonance (NMR) analysis to characterize urine metabolomic profile of AII/R injury in a mouse model. Animals were exposed to sham, early (30 min) or late (60 min) acute intestinal ischemia by complete occlusion of the superior mesenteric artery, followed by 2 hrs of reperfusion...
2017: PloS One
https://www.readbyqxmd.com/read/28653051/posterior-indirect-adhesive-%C3%A2-restorations-updated-indications-%C3%A2-and-the-morphology-driven-%C3%A2-preparation-technique
#18
Marco Veneziani
The aim of this article is to identify the indications for adhesively cemented restorations and to provide a correct step-by-step protocol for clinicians. New cavity preparation principles are based on morphological considerations in terms of geometry (maximum profile line and inclination of cusp lines), and structure (dentin concavity and enamel convexity). In this article, we discuss previous preparation concepts that were not designed purely for adhesive restorations and were therefore not conservative enough or suitable for adhesive procedures...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28575400/enhancing-multiplex-genome-editing-by-natural-transformation-mugent-via-inactivation-of-ssdna-exonucleases
#19
Triana N Dalia, Soo Hun Yoon, Elisa Galli, Francois-Xavier Barre, Christopher M Waters, Ankur B Dalia
Recently, we described a method for multiplex genome editing by natural transformation (MuGENT). Mutant constructs for MuGENT require large arms of homology (>2000 bp) surrounding each genome edit, which necessitates laborious in vitro DNA splicing. In Vibrio cholerae, we uncover that this requirement is due to cytoplasmic ssDNA exonucleases, which inhibit natural transformation. In ssDNA exonuclease mutants, one arm of homology can be reduced to as little as 40 bp while still promoting integration of genome edits at rates of ∼50% without selection in cis...
May 31, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28571262/evaluation-of-microleakage-with-total-etch-self-etch-and-universal-adhesive-systems-in-class-v-restorations-an-in-vitro-study
#20
Anjali Gupta, Pradeep Tavane, Pankaj Kumar Gupta, Bellam Tejolatha, Ashik Ali Lakhani, Ram Tiwari, Shruti Kashyap, Gaurav Garg
INTRODUCTION: Adhesive dentistry is overwhelmingly evolving with respect to the dental surgeon's and patient's perspective. Embracing the concept of minimally invasive dentistry which follows minimum intervention performed to produce good adhesion and tooth coloured restoration, in turn makes the newer generation bonding agents more acceptable and appropriate withstanding the demand for stable restoration. AIM: To study and compare the extent of microleakage between tooth and restoration interface in class V composite resin restorations applying one Total Etch (Adper(TM) single bond), two Self Etch (Adper(TM) SE Plus, Adper(TM) Easy One) and Universal bonding agents using dye penetration method...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
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