keyword
MENU ▼
Read by QxMD icon Read
search

fibrosis imaging

keyword
https://www.readbyqxmd.com/read/28448052/an-in-vitro-organ-culture-model-of-the-murine-intervertebral-disc
#1
Jennifer W Liu, Kevin H Lin, Christian Weber, Sameer Bhalla, Sean Kelso, Kaixi Wang, Simon Y Tang
Intervertebral disc (IVD) degeneration is a significant contributor to low back pain. The IVD is a fibrocartilaginous joint that serves to transmit and dampen loads in the spine. The IVD consists of a proteoglycan-rich nucleus pulposus (NP) and a collagen-rich annulus fibrosis (AF) sandwiched by cartilaginous end-plates. Together with the adjacent vertebrae, the vertebrae-IVD structure forms a functional spine unit (FSU). These microstructures contain unique cell types as well as unique extracellular matrices...
April 11, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28444420/periportal-lymphatic-system-on-post-hepatobiliary-phase-gd-eob-dtpa-enhanced-mr-imaging-in-normal-subjects-and-patients-with-chronic-hepatitis-c
#2
Yasunari Yamada, Shunro Matsumoto, Hiromu Mori, Ryo Takaji, Maki Kiyonaga, Naoki Hijiya, Rika Tanoue, Kenichiro Tomonari, Shuichi Tanoue, Norio Hongo, Masayuki Ohta, Masataka Seike, Masafumi Inomata, Kazunari Murakami, Masatsugu Moriyama
PURPOSE: We sought to evaluate visualization of periportal lymphatics and lymph nodes (lymphatic system) on Gd-EOB-DTPA-enhanced magnetic resonance (MR) images using a fat-suppressed T2-weighted sequence with 3-dimensional (3D) volume isotropic turbo spin echo acquisition (VISTA) at 3.0 T in normal subjects and patients with chronic hepatitis C. METHODS: MR imaging was performed in 254 subjects between June 2013 and May 2016. After applying inclusion and exclusion criteria, the final population was 31 normal subjects and 34 patients with chronic hepatitis C...
April 25, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28444133/increased-collagen-within-the-transverse-tubules-in-human-heart-failure
#3
David J Crossman, Xin Shen, Mia Jüllig, Michelle Munro, Yufeng Hou, Martin Middleditch, Darshan Shrestha, Amy Li, Sean Lal, Cristobal G Dos Remedios, David Baddeley, Peter N Ruygrok, Christian Soeller
Aims: In heart failure transverse-tubule (t-tubule) remodelling disrupts calcium release, and contraction. T-tubules in human failing hearts exhibit increased labelling by wheat germ agglutinin (WGA), a lectin that binds to the dystrophin-associated glycoprotein complex. We hypothesized changes in this complex may explain the increased WGA labelling and contribute to t-tubule remodelling in the failing human heart. In this study we sought to identify the molecules responsible for this increased WGA labelling...
April 20, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28442443/real-time-imaging-of-mechanically-and-chemically-induced-atp-release-in-human-lung-fibroblasts
#4
Kota Takahashi, Satoru Ito, Kishio Furuya, Shuichi Asano, Masahiro Sokabe, Yoshinori Hasegawa
Extracellular adenosine 5'-triphosphate (ATP) acts as an inflammatory mediator of pulmonary fibrosis. We investigated the effects of mechanical and chemical stimuli on ATP release from primary normal human lung fibroblasts. We visualized the ATP release from fibroblasts in real time using a luminescence imaging system while acquiring differential interference contrast cell images with infrared optics. Immediately following a single uniaxial stretch for 1 s, ATP was released from a certain population of cells and spread to surrounding spaces...
April 22, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28442120/american-gastroenterological-association-institute-technical-review-on-the-role-of-elastography-in-chronic-liver-diseases
#5
Siddharth Singh, Andrew J Muir, Douglas T Dieterich, Yngve T Falck-Ytter
Chronic liver diseases (CLDs), due to chronic hepatitis C; hepatitis B; nonalcoholic fatty liver diseases (NAFLD); and alcoholic liver disease, are a leading cause of morbidity and mortality globally. Early identification of patients with cirrhosis at high risk of progression to liver-related complications may facilitate timely care and improve outcomes. With risks and misclassification associated with invasive tests, such as liver biopsy, noninvasive imaging modalities for liver fibrosis assessment have gained popularity...
May 2017: Gastroenterology
https://www.readbyqxmd.com/read/28440736/levistilide-a-inhibits-angiogenesis-in-liver-fibrosis-via-vascular-endothelial-growth-factor-signaling-pathway
#6
Zhi-Min Zhao, Hong-Liang Liu, Xin Sun, Tao Guo, Li Shen, Yan-Yan Tao, Cheng-Hai Liu
Levistilide A (C24H28O4, molecular weight = 380.48) derived from Angelica sinensis (Danggui) has been reported to inhibit hepatic stellate cell proliferation. This study investigated the effects of levistilide A on liver fibrosis relating to angiogenesis, particularly on the characteristic change in liver sinusoidal endothelial cells. LX-2 cells were activated by TGF-β1, and the human hepatic sinusoidal endothelial cells (HHSECs) were induced by endothelial cell growth supplement. Cell viability was detected using a methylthiazoldiphenyl-tetrazolium bromide assay; F-actin was visualized through the fluorescence probe method; cell proliferation was examined using the EdU kit; antiangiogenesis activity was assessed using the tube formation assay and transgenic zebrafish model...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28439652/myocardial-extracellular-volume-fraction-quantified-by-cardiovascular-magnetic-resonance-is-increased-in-hypertension-and-associated-with-left-ventricular-remodeling
#7
Shuli Wang, Hongjie Hu, Minjie Lu, Arlene Sirajuddin, Jinghui Li, Jing An, Xiuyu Chen, Gang Yin, Tian Lan, Linlin Dai, Yan Zhang, Xiaorong Yin, Lei Song, Aimin Dang, Peter Kellman, Andrew E Arai, Shihua Zhao
OBJECTIVES: To determine whether extracellular volume fraction (ECV) quantification by cardiac magnetic resonance (CMR) can demonstrate left ventricle (LV) abnormalities and relationship between ECV and LV remodeling in hypertension (HTN) patients METHODS: ECV quantification was prospectively performed in 134 consecutive HTN patients and 97 healthy subjects. Individual and regional ECV were compared to the regions on late gadolinium enhancement (LGE) images. Statistical analysis of the relationship between LV global functional parameters and ECV was carried out using Pearson's correlation, Student's t test and multiple regressions...
April 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28439630/myriocin-treatment-of-cf-lung-infection-and-inflammation-complex-analyses-for-enigmatic-lipids
#8
Anna Caretti, Michele Vasso, Fabiola Tecla Bonezzi, Andrea Gallina, Marco Trinchera, Alice Rossi, Raffaella Adami, Josefina Casas, Monica Falleni, Delfina Tosi, Alessandra Bragonzi, Riccardo Ghidoni, Cecilia Gelfi, Paola Signorelli
Our aim was to use quantitative and qualitative analyses to gain further insight into the role of ceramide in cystic fibrosis (CF). Sphingolipid ceramide is a known inflammatory mediator, and its accumulation in inflamed lung has been reported in different types of emphysema, chronic obstructive pulmonary disease and CF. CF is caused by a mutation of the chloride channel and associated with hyperinflammation of the respiratory airways and high susceptibility to ongoing infections. We have previously demonstrated that de novo ceramide synthesis is enhanced in lung inflammation and sustains Pseudomonas aeruginosa pulmonary infection in a CF murine model...
April 24, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28435467/ultrasound-elastography-review-of-techniques-and-clinical-applications
#9
REVIEW
Rosa M S Sigrist, Joy Liau, Ahmed El Kaffas, Maria Cristina Chammas, Juergen K Willmann
Elastography-based imaging techniques have received substantial attention in recent years for non-invasive assessment of tissue mechanical properties. These techniques take advantage of changed soft tissue elasticity in various pathologies to yield qualitative and quantitative information that can be used for diagnostic purposes. Measurements are acquired in specialized imaging modes that can detect tissue stiffness in response to an applied mechanical force (compression or shear wave). Ultrasound-based methods are of particular interest due to its many inherent advantages, such as wide availability including at the bedside and relatively low cost...
2017: Theranostics
https://www.readbyqxmd.com/read/28435000/context-dependent-intravital-imaging-of-therapeutic-response-using-intramolecular-fret-biosensors
#10
REVIEW
James R W Conway, Sean C Warren, Paul Timpson
Intravital microscopy represents a more physiologically relevant method for assessing therapeutic response. However, the movement into an in vivo setting brings with it several additional considerations, the primary being the context in which drug activity is assessed. Microenvironmental factors, such as hypoxia, pH, fibrosis, immune infiltration and stromal interactions have all been shown to have pronounced effects on drug activity in a more complex setting, which is often lost in simpler two- or three-dimensional assays...
April 18, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28433831/ultrasonography-of-the-transverse-movement-and-deformation-of-the-median-nerve-and-its-relationships-with-electrophysiological-severity-in-the-early-stages-of-carpal-tunnel-syndrome
#11
Donghwi Park
BACKGROUND: To date, there have been conflicting suggestions regarding theinitial pathogenesis of CTS.It has been characterized as either inflammation of the median nerve caused by compression ornon-inflammatory fibrosis of the subsynovial connective tissue (SSCT). OBJECTIVE: To investigate the initialpathogenesis of CTS, we compared the deformation and displacement of the median nerve in accordance with the electrophysiological severity between patients with CTS (via Bland`s scale) and healthy controls...
April 19, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28432469/renal-findings-in-patients-with-mulibrey-nanism
#12
Johanna Sivunen, Susann Karlberg, Jouko Lohi, Niklas Karlberg, Marita Lipsanen-Nyman, Hannu Jalanko
BACKGROUND: Mulibrey nanism (MUL) is a rare inherited disease caused by genetic defects affecting peroxisomal TRIM37 protein. MUL affects multiple organs, leading to growth retardation and early onset type 2 diabetes. We aimed to characterize the structure and function of kidneys and the urinary tract in a large cohort of Finnish MUL patients. METHODS: Ultrasound, magnetic resonance imaging (MRI), and autopsy findings of the kidneys and urinary tract from 101 MUL patients were retrospectively analyzed...
April 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28424371/comprehensive-assessmentof-cavernosography-with-320-row-dynamic-volume-ct-versus-conventional-cavernosography-in-erectile-dysfunction-patients-caused-by-venous-leakage
#13
Cheng-Cheng Xu, Yu-Ning Pan, Yi-Fan Tang, Jie Zhang, Guo-Yao Wang, Qiu-Li Huang
This study aims to investigate and compare the diagnostic and prognostic value of cavernosography with 320-row dynamic volume computed tomography (DVCT) versus conventional cavernosography in men with erectile dysfunction (ED) caused by venous leakage. A total of 174 patients diagnosed with ED were enrolled and received cavernosography with 320-row DVCT (DVCT group) and conventional cavernosography scans (control group), respectively. The diagnosis, complications and prognosis of patients were evaluated. The DVCT group provided higher-resolution images with less processing and testing time, as well as lowered does radiological agent and contrast agent compared to the control group...
April 19, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28423973/neurological-involvement-of-igg4-related-disease-description-of-a-case-and-review-of-the-literature
#14
Marco Varrassi, Camilla Gianneramo, Francesco Arrigoni, Paolo Cerrone, Patrizia Sucapane, Carmine Marini, Alessandra Splendiani
IgG4-related disease is a recently discovered pathological entity, histologically characterised by fibrosis and IgG4-positive plasma cell infiltration. This condition may virtually involve every site of the organism, with a various range of clinical presentations. The most commonly affected organ is the pancreatic gland, but it can also involve the biliary tract, salivary and lacrimal glands, kidneys, orbital tissues, lymph nodes, lungs and many others. More recently, IgG4-related disease has been demonstrated to involve, in rare cases, also the central nervous system, with a pattern mainly characterised by hypertrophic pachymeningitis...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28422840/case-report-a-female-case-of-isolated-igg4-related-sclerosing-cholangitis-mimicking-cholangiocarcinoma
#15
Jianchun Xiao, Guanqiao Li, Gang Yang, Congwei Jia, Binglu Li
RATIONALE: IgG4-related disease is a newly recognized fibroinflammatory disorder, characterized by tumefactive lesions, storiform fibrosis and IgG4-positive plasma cells infiltration. IgG4-related sclerosing cholangitis (IgG4-SC) is the most common extrapancreatic manifestation of IgG4-related disease, but it is frequently associated with autoimmune pancreatitis(AIP). Only few case was reported to be diagnosed with IgG4-SC in the absence of AIP, with a striking male preponderance. Here we report a female case of isolated IgG4 related sclerosing cholangitis mimicking cholangiocarcinoma...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28422772/can-ultrasound-imaging-predict-the-success-of-an-experimental-steatofibrosis-model
#16
Rustu Turkay, Abdurrahman Fatih Aydin, Ilknur Bingul, Canan Kucukgergin, Isin Dogan-Ekici, Elif Hocaoglu, Ercan Inci, Baris Bakir, Mujdat Uysal
Our goal was to evaluate the role of ultrasound (US) imaging in an experimental 2-hit steatofibrosis rat model. Nineteen female Sprague-Dawley rats were divided into 2 groups: control group (n = 6) and high-fat diet carbontetrachloride (HFD-CCl4) group (n = 13) that was fed with HFD for 14 weeks. Ultrasound was performed to evaluate liver steatosis. The HFD-CCl4 group rats were divided further into 2 subgroups: HFD rats with liver steatosis [US (+) group; n = 6] and without steatosis [US (-) group; n = 7]. All rats in the subgroups were administered with CCl4...
April 19, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28422310/adult-onset-cystic-fibrosis-liver-disease-diagnosis-and-characterization-of-an-underappreciated-entity
#17
Christopher Koh, Sasan Sakiani, Pallavi Surana, Xiongce Zhao, Jason Eccleston, David E Kleiner, David Herion, T Jake Liang, Jay H Hoofnagle, Milica Chernick, Theo Heller
BACKGROUND & AIMS: Cystic fibrosis liver disease (CFLD), a leading cause of death in cystic fibrosis (CF), is mostly described in pediatric populations. Adult-onset CFLD lacks sufficient characterization and diagnostic tools. METHODS: A cohort of CF patients without CFLD during childhood were followed for up to 38 years with serologic testing, imaging, and noninvasive fibrosis markers. Historical CFLD diagnostic criteria were compared with a newly proposed CFLD criteria...
April 19, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28421350/preoperative-imaging-evaluation-of-pancreatic-pathologies-for-the-objective-prediction-of-pancreatic-fistula-after-pancreaticoduodenectomy
#18
REVIEW
Yoshitsugu Tajima, Yasunari Kawabata, Noriyuki Hirahara
In performing pancreaticoduodenectomy (PD) or when conducting clinical trials involving PD procedure, a universal platform for predicting the risk of postoperative pancreatic fistula (POPF) is indispensable. In this article, the most significant imaging studies that focused on the objective preoperative assessment of pancreatic pathologies in association with the occurrence of POPF after PD were reviewed. Several recently developed imaging modalities can objectively predict the occurrence of POPF after PD by assessing the elasticity, fibrosis, and fatty infiltration of the pancreas...
April 18, 2017: Surgery Today
https://www.readbyqxmd.com/read/28420436/autophagy-mediates-the-beneficial-effect-of-hypoxic-preconditioning-on-bone-marrow-mesenchymal-stem-cells-for-the-therapy-of-myocardial-infarction
#19
Zheng Zhang, Chao Yang, Mingzhi Shen, Ming Yang, Zhitao Jin, Liping Ding, Wei Jiang, Junke Yang, Haixu Chen, Feng Cao, Taohong Hu
BACKGROUND: Stem cell therapy has emerged as a promising therapeutic strategy for myocardial infarction (MI). However, the poor viability of transplanted stem cells hampers their therapeutic efficacy. Hypoxic preconditioning (HPC) can effectively promote the survival of stem cells. The aim of this study was to investigate whether HPC improved the functional survival of bone marrow mesenchymal stem cells (BM-MSCs) and increased their cardiac protective effect. METHODS: BM-MSCs, isolated from Tg(Fluc-egfp) mice which constitutively express both firefly luciferase (Fluc) and enhanced green fluorescent protein (eGFP), were preconditioned with HPC (1% O2) for 12 h, 24 h, 36 h, and 48 h, respectively, followed by 24 h of hypoxia and serum deprivation (H/SD) injury...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28419866/o-aminobenzoyl-s-nitrosoglutathione-a-fluorogenic-cell-permeable-pseudo-substrate-for-s-nitrosoglutathione-reductase
#20
Bei Lei Sun, Lisa Palmer, Shagufta Rehman Alam, Itunuoluwa Adekoya, Kathleen Brown-Steinke, Ammasi Periasamy, Bulent Mutus
S-nitrosoglutathione reductase (GSNOR) is a multifunctional enzyme. It can catalyze NADH-dependent reduction of S-nitrosoglutathione (GSNO); as well as NAD(+)-dependent oxidation of hydroxymethylglutathione (HMGSH; an adduct formed by the spontaneous reaction between formaldehyde and glutathione). While initially recognized as the enzyme that is involved in formaldehyde detoxification, increasing amount of evidence has shown that GSNOR also plays a significant role in nitric oxide mediated signaling through its modulation of protein S-nitrosothiol signaling...
April 15, 2017: Free Radical Biology & Medicine
keyword
keyword
105248
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"