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Imaging inflammation

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https://www.readbyqxmd.com/read/28430741/utility-of-8%C3%A2-h-and-time-decay-corrected-acquisition-scintigraphy-with-in-vitro-labeled-white-blood-cells-for-the-diagnosis-of-osteoarticular-infection
#1
Edel Noriega Álvarez, Guillermo A Martínez Pimienta, Ana M Benítez Segura, María T Bajén Lázaro, Alba Rodrígez-Gasén, Julio Rodríguez-Rubio Corona, Jaime Mora Salvadó
INTRODUCTION: Except in the spine, labeled white-blood cell scintigraphy (WBCS) with image acquisition up to 24 h is the nuclear medicine test of choice for diagnosing osteoarticular infection. However, distinguishing between inflammation and infection is a challenge. OBJECTIVES: The first aim of this study was to verify earlier research studies that used 4 and 24 h time decay-corrected acquisition (TDCA) to differentiate infection from inflammation. The second aim was to analyze whether 8 h acquisition (1-day protocol) yielded similar results as 20-24 h acquisition...
April 20, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28430714/ultrasound-molecular-imaging-of-inflammation-in-mouse-abdominal-aorta
#2
Shiying Wang, Sunil Unnikrishnan, Elizabeth B Herbst, Alexander L Klibanov, Frank William Mauldin, John A Hossack
OBJECTIVES: The aim of this study was to demonstrate a new clinically translatable ultrasound molecular imaging approach, modulated acoustic radiation force-based imaging, which is capable of rapid and reliable detection of inflammation as validated in mouse abdominal aorta. MATERIALS AND METHODS: Animal studies were approved by the Institutional Animal Care and Use Committee at the University of Virginia. C57BL/6 mice stimulated with tumor necrosis factor α, or fed with a high-fat diet, were used as inflammation (MInflammation) and diet-induced obesity (DIO) (MDIO) models, respectively...
April 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28430540/demystifying-orbital-emergencies-a-pictorial-review
#3
Viet D Nguyen, Achint K Singh, Wilson B Altmeyer, Bundhit Tantiwongkosi
Imaging of the orbit plays an important role in the workup of orbital emergencies. Orbital imaging is particularly useful in the emergency department, where clinical history and physical examination may be limited or delayed until the exclusion or treatment of more life-threatening conditions. Cross-sectional orbital imaging with multidetector computed tomography (CT) and magnetic resonance (MR) imaging is commonly performed in addition to ultrasonography. In an emergent setting, CT is the preferred modality when evaluating for intraorbital foreign bodies, fractures, or calcifications within a mass lesion...
April 21, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28427923/-acute-leukemia-revealed-by-bone-magnetic-resonance-imaging-two-pediatric-case-reports
#4
C Flatrès, A Pennanéach, G Blondin, E Rivoal, S Haro, P Vic
Bone and joint pain are common causes of pediatric consultation for a variety of etiologies. The causes are mostly traumatic or infectious or have an inflammatory origin. Acute leukemia (AL) can sometimes begin with osteoarticular signs and radiological investigations such as magnetic resonance imaging (MRI) can help guide the diagnosis. We report on two cases of pediatric AL revealed by osteoarticular signs, with MRI helpful in the diagnostic procedure. In these children, the first signs were recurrent joint pain, with no blood count anomalies...
April 17, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28427379/novel-mutation-identified-in-severe-early-onset-tumor-necrosis-factor-receptor-associated-periodic-syndrome-a-case-report
#5
Suhas M Radhakrishna, Amy Grimm, Lori Broderick
BACKGROUND: Tumor Necrosis Factor Receptor-Associated Periodic Syndrome (TRAPS) is the second most common heritable autoinflammatory disease, typically presenting in pre-school aged children with fever episodes lasting 1-3 weeks. Systemic symptoms can include rash, myalgia, ocular inflammation, and serositis. CASE PRESENTATION: Here we report an unusual presentation of TRAPS in a 7 month old girl who presented with only persistent fever. She was initially diagnosed with incomplete Kawasaki Disease and received IVIG and infliximab; however, her fevers quickly recurred...
April 20, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28425467/hyperpolarized-13-c-spectroscopic-evaluation-of-oxidative-stress-in-a-rodent-model-of-steatohepatitis
#6
David M Wilson, Valentina Di Gialleonardo, Zhen J Wang, Valerie Carroll, Cornelius Von Morze, Andrew Taylor, Victor Sai, Mark VanCriekinge, Robert Bok, Michael A Ohliger, Kayvan R Keshari
Nonalcoholic fatty liver disease (NAFLD) has become highly prevalent, now considered the most common liver disease in the western world. Approximately one-third of patients with NASH develop non-alchoholic steatohepatitis (NASH), histologically defined by lobular and portal inflammation, and accompanied by marked oxidative stress. Patients with NASH are at increased risk for cirrhosis and hepatocellular carcinoma, and diagnosis currently requires invasive biopsy. In animal models of NASH, particularly the methionine-choline deficient (MCD) model, profound changes are seen in redox enzymes and key intracellular antioxidants...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424764/diffusion-tensor-imaging-colour-mapping-threshold-for-identification-of-ventilation-induced-brain-injury-after-intrauterine-inflammation-in-preterm-lambs
#7
Dhafer M Alahmari, Beatrice Skiöld, Samantha K Barton, Ilias Nitsos, Courtney McDonald, Suzanne L Miller, Valerie Zahra, Robert Galinsky, Qizhu Wu, Michael John Farrell, Timothy J Moss, Stuart B Hooper, James T Pearson, Graeme R Polglase
PURPOSE: The aim of this study is to examine whether advanced magnetic resonance imaging (MRI) techniques can detect early brain injury caused by intrauterine inflammation and inappropriate initial respiratory support in preterm lambs. HYPOTHESIS: Neuropathology caused by intrauterine inflammation is exacerbated by mechanical ventilation at birth and is detectable with advanced MRI techniques. METHODS: Pregnant ewes received intra-amniotic lipopolysaccharide (LPS) 7 days prior to delivery at ~125 days of gestation (85% of gestation), whereupon lambs were delivered and randomised to receive an injurious (LPS + INJ, n = 6) or protective (LPS + PROT, n = 6) ventilation strategy...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28424654/emerging-approaches-for-validating-and-managing-multiple-sclerosis-relapse
#8
REVIEW
Elizabeth A Mills, Ali Mirza, Yang Mao-Draayer
The autoimmune disease multiple sclerosis (MS) is characterized by relapses in the majority of patients. A definitive clinical diagnosis of relapse in MS can be complicated by the presence of an infection or comorbid disorder. In this mini-review, we describe efforts to develop enhanced imaging techniques and biomarker detection as future tools for relapse validation. There is emerging evidence of roles for meningeal inflammation, sex hormones, comorbid metabolic or mood disorders, and a dysregulated immune profile in the manifestation and severity of relapse...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28424613/the-relationship-between-cerebral-small-vessel-disease-hippocampal-volume-and-cognitive-functioning-in-patients-with-copd-an-mri-study
#9
Fiona A H M Cleutjens, Rudolf W H M Ponds, Martijn A Spruit, Saartje Burgmans, Heidi I L Jacobs, Ed H B M Gronenschild, Julie Staals, Frits M E Franssen, Jeanette B Dijkstra, Lowie E G W Vanfleteren, Paul A Hofman, Emiel F M Wouters, Daisy J A Janssen
The neural correlates of cognitive impairment in chronic obstructive pulmonary disease (COPD) are not yet understood. Structural brain abnormalities could possibly be associated with the presence of cognitive impairment through cigarette smoke, inflammation, vascular disease, or hypoxemia in these patients. This study aimed to investigate whether macrostructural brain magnetic resonance imaging (MRI) features of cerebral small vessel disease (SVD) and hippocampal volume (HCV) are related to cognitive performance in patients with COPD...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28424320/trpa1-expression-and-its-functional-activation-in-rodent-cortex
#10
Ehsan Kheradpezhouh, Julian M C Choy, Vincent R Daria, Ehsan Arabzadeh
TRPA1 is a non-selective cation channel involved in pain sensation and neurogenic inflammation. Although TRPA1 is well established in a number of organs including the nervous system, its presence and function in the mammalian cortex remains unclear. Here, we demonstrate the expression of TRPA1 in rodent somatosensory cortex through immunostaining and investigate its functional activation by whole-cell electrophysiology, Ca(2+) imaging and two-photon photoswitching. Application of TRPA1 agonist (AITC) and antagonist (HC-030031) produced significant modulation of activity in layer 5 (L5) pyramidal neurons in both rats and mice; AITC increased intracellular Ca(2+) concentrations and depolarized neurons, and both effects were blocked by HC-030031...
April 2017: Open Biology
https://www.readbyqxmd.com/read/28424185/very-long-chain-%C3%AF-3-fatty-acid-supplements-and-adipose-tissue-functions-a-randomized-controlled-trial
#11
Kazanna C Hames, Maria Morgan-Bathke, Debra A Harteneck, Lendia Zhou, John D Port, Ian R Lanza, Michael D Jensen
Background: Increased omega-3 (n-3) fatty acid consumption is reported to benefit patients with metabolic syndrome, possibly due to improved adipose tissue function.Objective: We tested the effects of high-dose, very-long-chain ω-3 fatty acids on adipose tissue inflammation and insulin regulation of lipolysis.Design: A double-blind, placebo-controlled study compared 6 mo of 3.9 g eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)/d (4.2 g total ω-3/d; n = 12) with a placebo (4.2 g oleate/d; n = 9) in insulin-resistant adults...
April 19, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28423237/assessment-of-vascular-response-to-bioss-lim-c-%C3%A2-stents-vs-orsiro-%C3%A2-stents-in-the-porcine-coronary-artery-model
#12
Jacek Bil, Robert J Gil, Tomasz Pawlowski, Krzysztof P Milewski
AIMS: The optimal treatment strategy for coronary bifurcation lesions is still unknown. The aim of the study was to assess applicability of the new cobalt-chromium version of the sirolimus-eluting dedicated bifurcation BiOSS(®) LIM C stent in comparison with regular sirolimus-eluting Orsiro(®)  stent in a porcine coronary model. METHODS: A total of 13 BiOSS(®) LIM C stents and 6 Orsiro(®) stents were implanted in normal non-atherosclerotic porcine straight coronary arteries of six animals using 1...
April 19, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28422672/aiimds-an-integrated-framework-of-automatic-idiopathic-inflammatory-myopathy-diagnosis-for-muscle
#13
Manish Sapkota, Fujun Liu, Yuanpu Xie, Hai Su, Fuyong Xing, Lin Yang
Idiopathic Inflammatory Myopathy (IIM) is a common skeletal muscle disease that relates to weakness and inflammation of muscle. Early diagnosis and prognosis of different types of IIMs will guide the effective treatment. Interpretation of digitized images of the cross section muscle biopsy, which is currently done manually, provides the most reliable diagnostic information. With the increasing volume of images, the management and manual interpretation of the digitized muscle images suffer from low efficiency and high interobserver variabilities...
April 13, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28422070/one-year-follow-up-risk-assessment-in-skh-1-mice-and-wounds-treated-with-an-argon-plasma-jet
#14
Anke Schmidt, Thomas von Woedtke, Jan Stenzel, Tobias Lindner, Stefan Polei, Brigitte Vollmar, Sander Bekeschus
Multiple evidence in animal models and in humans suggest a beneficial role of cold physical plasma in wound treatment. Yet, risk assessment studies are important to further foster therapeutic advancement and acceptance of cold plasma in clinics. Accordingly, we investigated the longterm side effects of repetitive plasma treatment over 14 consecutive days in a rodent full-thickness ear wound model. Subsequently, animals were housed for 350 days and sacrificed thereafter. In blood, systemic changes of the proinflammatory cytokines interleukin 1β and tumor necrosis factor α were absent...
April 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28421878/cerebrovascular-injury-in-cryptococcal-meningitis
#15
Ajay Kumar Mishra, Vanjare Harshad Arvind, Divya Muliyil, Cijoy K Kuriakose, Anu Anna George, Reka Karuppusami, Ronald Albert Benton Carey, Sunithi Mani, Samuel George Hansdak
Background Cryptococcal meningitis continues to be one of the common causes of chronic central nervous system infection worldwide. Individuals with cryptococcal meningitis can occasionally present with small vessel vasculitis causing infarcts primarily in the basal ganglia, internal capsule, and thalamus. Literature regarding patterns of cerebrovascular injury among patients with cryptococcal meningitis is scanty, and outcome following these vascular involvements is unknown. Aim To study the clinical profile, imaging findings, and details of vascular territory involved among patients admitted with cryptococcal meningitis and central nervous system infarct in a tertiary care center from India...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28421362/selective-imaging-of-vascular-endothelial-growth-factor-receptor-1-and-receptor-2-in-atherosclerotic-lesions-in-diabetic-and-non-diabetic-apoe-mice
#16
Yared Tekabe, Lynne L Johnson, Krissy Rodriquez, Qing Li, Marina Backer, Joseph M Backer
PURPOSE: Plaque vulnerability is associated with inflammation and angiogenesis, processes that rely on vascular endothelial growth factor (VEGF) signaling via two receptors, VEGFR-1 and VEGFR-2. We have recently reported that enhanced uptake of scVEGF-PEG-DOTA/Tc-99m (scV/Tc) single photon emission computed tomography (SPECT) tracer that targets both VEGFR-1 and VEGFR-2, identifies accelerated atherosclerosis in diabetic relative to non-diabetic ApoE(-/-) mice. Since VEGFR-1 and VEGFR-2 may play different roles in atherosclerotic plaques, we reasoned that selective imaging of each receptor can provide more detailed information on plaque biology...
April 18, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28420646/associations-between-left-ventricular-dysfunction-and-brain-structure-and-function-findings-from-the-sabre-southall-and-brent-revisited-study
#17
Chloe M Park, Emily D Williams, Nish Chaturvedi, Therese Tillin, Robert J Stewart, Marcus Richards, Dean Shibata, Jamil Mayet, Alun D Hughes
BACKGROUND: Subclinical left ventricular (LV) dysfunction has been inconsistently associated with early cognitive impairment, and mechanistic pathways have been poorly considered. We investigated the cross-sectional relationship between LV dysfunction and structural/functional measures of the brain and explored the role of potential mechanisms. METHOD AND RESULTS: A total of 1338 individuals (69±6 years) from the Southall and Brent Revisited study underwent echocardiography for systolic (tissue Doppler imaging peak systolic wave) and diastolic (left atrial diameter) assessment...
April 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28419120/structural-and-functional-changes-in-the-microcirculation-of-lepromatous-leprosy-patients-observation-using-orthogonal-polarization-spectral-imaging-and-laser-doppler-flowmetry-iontophoresis
#18
Curt Treu, Maria das Graças Coelho de Souza, Omar Lupi, Fernando Lencastre Sicuro, Priscila Alves Maranhão, Luiz Guilherme Kraemer-Aguiar, Eliete Bouskela
Leprosy is a chronic granulomatous infection of skin and peripheral nerves caused by Mycobacterium leprae and is considered the main infectious cause of disability worldwide. Despite the several studies regarding leprosy, little is known about its effects on microvascular structure and function in vivo. Thus, we have aimed to compare skin capillary structure and functional density, cutaneous vasomotion (spontaneous oscillations of arteriolar diameter), which ensures optimal blood flow distribution to skin capillaries) and cutaneous microvascular blood flow and reactivity between ten men with lepromatous leprosy (without any other comorbidity) and ten age- and gender-matched healthy controls...
2017: PloS One
https://www.readbyqxmd.com/read/28417657/a-kissing-lesion-in-vivo-7t-evidence-of-meningeal-inflammation-in-early-multiple-sclerosis
#19
Pierre Kolber, Amgad Droby, Alard Roebroeck, Rainer Goebel, Vinzenz Fleischer, Sergiu Groppa, Frauke Zipp
BACKGROUND: The role of cortical lesions (CLs) in disease progression and clinical deficits is increasingly recognized in multiple sclerosis (MS); however the origin of CLs in MS still remains unclear. OBJECTIVE: Here, we report a para-sulcal CL detected two years after diagnosis in a relapsing-remitting MS (RRMS) patient without manifestation of clinical deficit. METHODS: Ultra-high field (7T) MR imaging using magnetization-prepared 2 rapid acquisition gradient echoes (MP2RAGE) sequence was performed...
April 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28417656/in-vivo-imaging-of-meningeal-inflammation-in-multiple-sclerosis-presence-of-evidence-or-evidence-of-presence
#20
Iris D Kilsdonk, Menno Schoonheim, Mike P Wattjes
No abstract text is available yet for this article.
April 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
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