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https://www.readbyqxmd.com/read/29222812/spheroid-type-of-al-amyloid-deposition-associated-with-colonic-adenocarcinoma-a-case-report-with-literature-review
#1
Moon Joo Kim, Zulfia McCroskey, Yingchao Piao, Anna Belcheva, Luan Truong, Paul J Kurtin, Jae Y Ro
We report a colonic adenocarcinoma associated with diffuse submucosal deposition of a peculiar spheroid-type amyloid identified in the colon, terminal ileum, and appendix. A 65-year-old woman with past medical histories of hypertension, and chronic obstructive pulmonary disease, presented to the emergency room with cramping abdominal pain and nausea. A computed tomography (CT) scan of abdomen showed right colonic volvulus. Emergency right hemicolectomy was performed. The specimen showed colonic adenocarcinoma with focal submucosal invasion (pT1) arising from a villotubular adenoma...
December 8, 2017: Pathology International
https://www.readbyqxmd.com/read/29222784/methods-for-quantitative-analysis-of-axonal-cargo-transport
#2
Matias Alloatti, Luciana Bruno, Tomas L Falzone
Neurons rely on complex axonal transport mechanisms that mediate the intracellular dynamics of proteins, vesicles, and mitochondria along their high polarized structure. The fast improvement of live imaging techniques of fluorescent cargos allowed the identification of the diverse motion properties of different transported molecules. These properties arise as the result of molecular interactions between many players involved in axonal transport. Motor proteins, microtubule tracks, cargo association, and even axonal viscosity contribute to the proper axonal dynamics of different cargos...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29222688/comparison-of-qualitative-and-quantitative-ct-and-mri-parameters-for-monitoring-of-longitudinal-spine-involvement-in-patients-with-multiple-myeloma
#3
M Horger, J Fritz, W M Thaiss, H Ditt, K Weisel, M Haap, Christopher Kloth
PURPOSE: To compare qualitative and quantitative computed tomography (CT) and magnetic resonance imaging (MRI) parameters for longitudinal disease monitoring of multiple myeloma (MM) of the axial skeleton. MATERIALS AND METHODS: We included 31 consecutive patients (17 m; mean age 59.20 ± 8.08 years) with MM, who underwent all baseline (n = 31) and at least one or more (n = 47) follow-up examinations consisting of multi-parametric non-enhanced whole-body MRI (WBMRI) and non-enhanced whole-body reduced-dose thin-section MDCT (NEWBMDCT) between 06/2013 and 09/2016...
December 8, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29222685/prediction-of-outcome-using-pretreatment-18f-fdg-pet-ct-and-mri-radiomics-in-locally-advanced-cervical-cancer-treated-with-chemoradiotherapy
#4
François Lucia, Dimitris Visvikis, Marie-Charlotte Desseroit, Omar Miranda, Jean-Pierre Malhaire, Philippe Robin, Olivier Pradier, Mathieu Hatt, Ulrike Schick
PURPOSE: The aim of this study is to determine if radiomics features from 18fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) and magnetic resonance imaging (MRI) images could contribute to prognoses in cervical cancer. METHODS: One hundred and two patients (69 for training and 33 for testing) with locally advanced cervical cancer (LACC) receiving chemoradiotherapy (CRT) from 08/2010 to 12/2016 were enrolled in this study. 18F-FDG PET/CT and MRI examination [T1, T2, T1C, diffusion-weighted imaging (DWI)] were performed for each patient before CRT...
December 9, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29222677/diagnostic-evaluation-of-magnetization-transfer-and-diffusion-kurtosis-imaging-for-prostate-cancer-detection-in-a-re-biopsy-population
#5
Tristan Barrett, Mary McLean, Andrew N Priest, Edward M Lawrence, Andrew J Patterson, Brendan C Koo, Ilse Patterson, Anne Y Warren, Andrew Doble, Vincent J Gnanapragasam, Christof Kastner, Ferdia A Gallagher
OBJECTIVE: To evaluate diffusion kurtosis imaging (DKI) and magnetisation transfer imaging (MTI) compared to standard MRI for prostate cancer assessment in a re-biopsy population. METHODS: Thirty-patients were imaged at 3 T including DKI (Kapp and Dapp) with b-values 150/450/800/1150/1500 s/mm2 and MTI performed with and without MT saturation. Patients underwent transperineal biopsy based on prospectively defined MRI targets. Receiver-operating characteristic (ROC) analyses assessed the parameters and Wilcoxon-signed ranked test assessed relationships between metrics...
December 8, 2017: European Radiology
https://www.readbyqxmd.com/read/29222663/magnetic-ethylene-diamine-functionalized-graphene-oxide-as-novel-sorbent-for-removal-of-lead-and-cadmium-ions-from-wastewater-samples
#6
Mahdi Ghorbani, Alireza Shams, Orkideh Seyedin, Nahid Afshar Lahoori
In this paper, magnetic ethylene diamine-functionalized graphene oxide (MDFGO) as a novel sorbent was synthesized and applied for removal of Pb(II) and Cd(II) from real wastewater samples. The morphology and molecular structure of MDFGO were studied by different analytical methods. The effective parameters in adsorption efficiency of Pb(II) and Cd(II) were studied and optimized using experimental design. Under the optimal condition, the effective parameters including pH, sorbent dosage, shaking rate, and adsorption time were 6...
December 8, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29222587/gastrointestinal-manifestation-of-immunoglobulin-g4-related-disease-clarification-through-a-multicenter-survey
#7
Kenji Notohara, Terumi Kamisawa, Kazushige Uchida, Yoh Zen, Mitsuhiro Kawano, Satomi Kasashima, Yasuharu Sato, Masahiro Shiokawa, Takeshi Uehara, Hajime Yoshifuji, Hiroko Hayashi, Koichi Inoue, Keisuke Iwasaki, Hiroo Kawano, Hiroyuki Matsubayashi, Yukitoshi Moritani, Katsuhiko Murakawa, Yoshio Oka, Masatoshi Tateno, Kazuichi Okazaki, Tsutomu Chiba
BACKGROUND: Several reports on immunoglobulin (Ig)G4-related disease (IgG4-RD) with gastrointestinal involvement (IgG4-related gastrointestinal disease; IgG4-GID) have been published, although this entity has not been fully established clinicopathologically. Thus, we carried out a multicenter survey. METHODS: Patients with possible IgG4-GID who underwent resection were collected. Histologic slides were reevaluated, and eight cases with diffuse lymphoplasmacytic infiltration but without numerous neutrophils, granulations or epithelioid granulomas were further analyzed...
December 8, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/29222511/dynamics-of-transformation-from-platinum-icosahedral-nanoparticles-to-larger-fcc-crystal-at-millisecond-time-resolution
#8
Wenpei Gao, Jianbo Wu, Aram Yoon, Ping Lu, Liang Qi, Jianguo Wen, Dean J Miller, James C Mabon, William L Wilson, Hong Yang, Jian-Min Zuo
Atomic motion at grain boundaries is essential to microstructure development, growth and stability of catalysts and other nanostructured materials. However, boundary atomic motion is often too fast to observe in a conventional transmission electron microscope (TEM) and too slow for ultrafast electron microscopy. Here, we report on the entire transformation process of strained Pt icosahedral nanoparticles (ICNPs) into larger FCC crystals, captured at 2.5 ms time resolution using a fast electron camera. Results show slow diffusive dislocation motion at nm/s inside ICNPs and fast surface transformation at μm/s...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222500/long-term-outcomes-in-survivors-of-epidemic-influenza-a-h7n9-virus-infection
#9
Jiajia Chen, Jie Wu, Shaorui Hao, Meifang Yang, Xiaoqing Lu, Xiaoxiao Chen, Lanjuan Li
Patients who survive influenza A (H7N9) virus infection are at risk of physical and psychological complications of lung injury and multi-organ dysfunction. However, there were no prospectively individualized assessments of physiological, functional and quality-of-life measures after hospital discharge. The current study aims to assess the main determinants of functional disability of these patients during the follow-up. Fifty-six influenza A (H7N9) survivors were investigated during the 2-year after discharge from the hospital...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222494/the-consequences-of-replacing-wildlife-with-livestock-in-africa
#10
Gareth P Hempson, Sally Archibald, William J Bond
The extirpation of native wildlife species and widespread establishment of livestock farming has dramatically distorted large mammal herbivore communities across the globe. Ecological theory suggests that these shifts in the form and the intensity of herbivory have had substantial impacts on a range of ecosystem processes, but for most ecosystems it is impossible to quantify these changes accurately. We address these challenges using species-level biomass data from sub-Saharan Africa for both present day and reconstructed historical herbivore communities...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222427/exceptional-increase-in-the-creep-life-of-magnesium-rare-earth-alloys-due-to-localized-bond-stiffening
#11
Deep Choudhuri, Srivilliputhur G Srinivasan, Mark A Gibson, Yufeng Zheng, David L Jaeger, Hamish L Fraser, Rajarshi Banerjee
Several recent papers report spectacular, and unexpected, order of magnitude improvement in creep life of alloys upon adding small amounts of elements like zinc. This microalloying effect raises fundamental questions regarding creep deformation mechanisms. Here, using atomic-scale characterization and first principles calculations, we attribute the 600% increase in creep life in a prototypical Mg-rare earth (RE)-Zn alloy to multiple mechanisms caused by RE-Zn bonding-stabilization of a large volume fraction of strengthening precipitates on slip planes, increase in vacancy diffusion barrier, reduction in activated cross-slip, and enhancement of covalent character and bond strength around Zn solutes along the c-axis of Mg...
December 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/29222307/secondary-cns-relapse-in-diffuse-large-b-cell-lymphoma-defining-high-risk-patients-and-optimization-of-prophylaxis-strategies
#12
REVIEW
Kerry J Savage
Despite improvement in survival in diffuse large B-cell lymphoma (DLBCL) with the introduction of rituximab, central nervous system (CNS) relapse continues to represent a clinical challenge. A number of studies have evaluated clinical risk factors in an attempt to identify high-risk patients to direct CNS staging investigations and consider prophylaxis strategies. The CNS International Prognostic Index is a robust and reproducible risk model that can identity patients at high risk of CNS relapse, but its specificity remains limited...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222271/optimizing-therapy-for-mantle-cell-lymphoma
#13
REVIEW
Peter Martin
Most people with mantle cell lymphoma (MCL) present with diffuse adenopathy and benefit from early initiation of rituximab and high-dose cytarabine- or bendamustine-based therapies. Some patients, however, present with primarily nonnodal disease that can follow either an indolent or a rapidly progressive, treatment-resistant clinical course. Rarely, patients present with explosive disease that can be challenging to manage and often involves the central nervous system. New agents with improved therapeutic indices facilitate treatment while maintaining quality of life, but also present new complications at the time of treatment failure...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222270/primary-mediastinal-b-cell-lymphoma-biology-and-evolving-therapeutic-strategies
#14
REVIEW
Kieron Dunleavy
Primary mediastinal B-cell lymphoma (PMBCL) is recognized as a distinct clinicopathologic entity that predominantly affects adolescents and young adults and is more common in female subjects. Although PMBCL is considered to be a subtype of diffuse large B-cell lymphoma, its clinical, morphologic, and biological characteristics overlap significantly with those of nodular sclerosing Hodgkin lymphoma (NSHL). Over the past few years, the shared biology of these 2 entities has been highlighted in several studies, and mediastinal gray zone lymphoma, with features intermediate between PMBCL and NSHL, has been recognized as a unique molecular entity...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222268/tailoring-front-line-therapy-in-diffuse-large-b-cell-lymphoma-who-should-we-treat-differently
#15
REVIEW
Andrew Davies
Although there have been significant insights into the biology of diffuse large B-cell lymphoma (DLBCL) over recent years, progress in our therapeutic approach has been disappointing over the same timeframe. This is not for want of trying. In 2017, R-CHOP (rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone) remains the "gold standard," despite all of our insights into cell-of-origin and other subgroups. We have traditionally used clinical risk factors to tailor our therapies and have tested intensification of chemotherapy with little success...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222131/low-dose-anthracycline-and-risk-of-heart-failure-in-a-pharmacokinetic-model-of-human-myocardium-exposure-analog-specificity-and-role-of-secondary-alcohol-metabolites
#16
Emanuela Salvatorelli, Pierantonio Menna, Massimo Chello, Elvio Covino, Giorgio Minotti
Cumulative doses of doxorubicin and other antitumor anthracyclines may cause heart failure (HF). Cardiotoxicity is determined by cardiac exposure to anthracyclines and to more toxic secondary alcohol metabolites that are formed inside cardiomyocytes or diffuse from the bloodstream. Concerns exist that HF might be caused by cumulative anthracycline doses that were thought to be safe. Patients with gain-of-function polymorphism of carbonyl reductase 3 (CBR3), which converts anthracyclines to secondary alcohol metabolites, would be at a higher risk of HF...
December 8, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29222007/current-concepts-in-pathogenesis-diagnosis-and-management-of-smoking-related-interstitial-lung-diseases
#17
REVIEW
Anupam Kumar, Sujith V Cherian, Robert Vassallo, Eunhee S Yi, Jay H Ryu
Tobacco exposure results in various changes to the airways and lung parenchyma. While emphysema represents the more common injury pattern, in some individuals, cigarette smoke injures alveolar epithelial and other lung cells resulting in diffuse infiltrates and parenchymal fibrosis. Smoking can trigger interstitial injury patterns mediated via recruitment and inappropriate persistence of myeloid and other immune cells including eosinophils. As our understanding of the role of cigarette smoke constituents in triggering lung injury continues to evolve, so does our recognition of the spectrum of smoking-related interstitial lung changes...
December 5, 2017: Chest
https://www.readbyqxmd.com/read/29221992/active-mediated-transport-of-chloramphenicol-and-thiamphenicol-in-a-calu-3-lung-epithelial-cell-model
#18
S N Nurbaeti, J C Olivier, C Adier, S Marchand, W Couet, J Brillault
Pulmonary administration enables high local concentrations along with limited systemic side-effects, but not all ATB could be good candidates. In this perspective, diffusion of the ATB chloramphenicol (CHL) and thiamphenicol (THA) through the lung has been evaluated to re-assess their potential for pulmonary administration. The apparent permeability (Papp) was evaluated with the Calu-3 cell model. Influence of drug transporters was assessed with the PSC-833, MK-571, and KO-143 inhibitors. The influence of CHL and THA on the cell uptake of rhodamin123 and fluorescein was also evaluated...
December 5, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29221965/diffusion-kurtosis-imaging-of-a-human-nasopharyngeal-carcinoma-xenograft-model-initial-experience-with-pathological-correlation
#19
Jing Zhong, Peng Shi, Yunbin Chen, Rongfang Huang, Youping Xiao, Xiang Zheng, Dechun Zheng, Li Peng
PURPOSE: The aim of this study was to investigate the relationship between diffusion kurtosis imaging (DKI)-related parameters and pathological measures using human nasopharyngeal carcinoma (NPC) xenografts in a nude mouse model. MATERIALS AND METHODS: Twenty-six BALB/c-nu nude mice were divided into two groups that were injected with two different nasopharyngeal squamous cell carcinoma cell lines (CNE1 and CNE2). DK magnetic resonance (MR) imaging was performed on a 3...
December 5, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29221964/inflammatory-hepatic-adenomas-characterization-with-hepatobiliary-mri-contrast-agents
#20
James F Glockner, Christine U Lee, Taofic Mounajjed
PURPOSE: To characterize the MRI appearance of inflammatory hepatic adenomas using hepatobiliary contrast agents. MATERIALS AND METHODS: MRI was performed using hepatobiliary contrast agents (3 with gadobenate dimeglumine and 24 with gadoxetic acid) in 27 patients with immunohistochemistry-confirmed diagnosis of inflammatory hepatic adenoma. The appearance of the lesions on T2 and diffusion-weighted images, pre-gadolinium T1-weighted images, dynamic post-gadolinium images, and hepatobiliary phase images was assessed...
December 5, 2017: Magnetic Resonance Imaging
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