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https://www.readbyqxmd.com/read/28335193/facile-synthesis-of-gd-functionalized-gold-nanoclusters-as-potential-mri-ct-contrast-agents
#1
Wenjun Le, Shaobin Cui, Xin Chen, Huanhuan Zhu, Bingdi Chen, Zheng Cui
Multi-modal imaging plays a key role in the earlier detection of disease. In this work, a facile bioinspired method was developed to synthesize Gd-functionalized gold nanoclusters (Gd-Au NCs). The Gd-Au NCs exhibit a uniform size, with an average size of 5.6 nm in dynamic light scattering (DLS), which is a bit bigger than gold clusters (3.74 nm, DLS), while the fluorescent properties of Gd-Au NCs are almost the same as that of Au NCs. Moreover, the Gd-Au NCs exhibit a high longitudinal relaxivity value (r1) of 22...
April 9, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335088/further-characterization-of-computed-tomographic-and-clinical-features-for-staging-and-prognosis-of-idiopathic-pulmonary-fibrosis-in-west-highland-white-terriers
#2
Florence Thierry, Ian Handel, Gawain Hammond, Lesley G King, Brendan M Corcoran, Tobias Schwarz
Idiopathic pulmonary fibrosis is an interstitial lung disease of unknown etiology resulting in progressive interstitial fibrosis, with a known predilection in West Highland white terriers. In humans, computed tomography (CT) is a standard method for providing diagnostic and prognostic information, and plays a major role in the idiopathic pulmonary fibrosis staging process. Objectives of this retrospective, analytical, cross-sectional study were to establish descriptive criteria for reporting CT findings and test correlations among CT, clinical findings and survival time in West Highland white terriers with idiopathic pulmonary fibrosis...
March 23, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28334949/mycoplasma-hominis-ureaplasma-urealyticum-and-chlamydia-trachomatis-respiratory-colonization-in-malaysian-preterm-infants
#3
Khuen Foong Ng, Kah Kee Tan, Mi-Chelle Chok, Nurul Zamil Mohd Muzzamil, Pauline Choo, Umathevi Paramasivam, Marlindawati Mohd Ali, Jun Yan Goh, Wan Ying Gan
This prospective observational study aims to determine the incidence, predictors and clinical features of Mycoplasma hominis (MH), Ureaplasma urealyticum (UU) and Chlamydia trachomatis (CT) respiratory colonization in infants <37 weeks of gestation. A total of 200 preterm newborns admitted to a tertiary center in Malaysia between 2013 and 2015 for increased breathing effort had their respiratory secretions tested for these bacteria by polymerase chain reaction. Fifteen of the 200 (7.5%) infants were detected to have these organisms in their respiratory tracts...
March 2, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28334940/aav9-delivered-bispecific-nanobody-attenuates-amyloid-burden-in-the-gelsolin-amyloidosis-mouse-model
#4
Adriaan Verhelle, Nisha Nair, Inge Everaert, Wouter Van Overbeke, Lynn Supply, Olivier Zwaenepoel, Cindy Peleman, Jo Van Dorpe, Tony Lahoutte, Nick Devoogdt, Wim Derave, Marinee K Chuah, Thierry Vanden Driessche, Jan Gettemans
Gelsolin amyloidosis is a dominantly inherited, incurable type of amyloidosis. A single point mutation in the gelsolin gene (G654A is most common) results in the loss of a Ca2+  binding site in the second gelsolin domain. Consequently, this domain partly unfolds and exposes an otherwise buried furin cleavage site at the surface. During secretion of mutant plasma gelsolin consecutive cleavage by furin and MT1-MMP results in the production of 8 and 5 kDa amyloidogenic peptides. Nanobodies that are able to (partly) inhibit furin or MT1-MMP proteolysis have previously been reported...
February 21, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334894/minimal-activity-low-dose-pet-ct-a-problem-solving-tool-for-uncertain-pulmonary-pet-findings-without-correlative-ct-lesions
#5
Falk Gühne, Robert Drescher, Martin Freesmeyer
No abstract text is available yet for this article.
March 8, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28334858/comparison-between-neoadjuvant-chemotherapy-followed-by-surgery-and-definitive-chemoradiotherapy-for-overall-survival-in-patients-with-clinical-stage-ii-iii-esophageal-squamous-cell-carcinoma-jcog1406-a
#6
Motoo Nomura, Ken Kato, Nobutoshi Ando, Atsushi Ohtsu, Kei Muro, Hiroyasu Igaki, Tetsuya Abe, Hiroya Takeuchi, Hiroyuki Daiko, Masahiro Gotoh, Kozo Kataoka, Masashi Wakabayashi, Yuko Kitagawa
Background: Neoadjuvant chemotherapy followed by surgery (NAC-S) represents the standard treatment for patients with Stage II/III esophageal squamous cell carcinoma (ESCC) in Japan. Chemoradiotherapy (CRT) is performed in patients who refuse or have contraindications to surgery. However, randomized clinical trials that compare NAC-S with CRT have not been conducted. The aim of this study was to explore subgroups of patients undergoing CRT to identify those with survival outcomes potentially equivalent to NAC-S...
March 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28334545/-conservative-treatment-of-late-aortic-graft-infection
#7
Peter Baľa, Kamil Zeman, Renata Kološová, Ivo Pavlas, Dušan Kučera
Aortic graft infection is one of the most serious complications of aortovascular surgery. Diagnosis is based on clini-cal and radiologic findings. The emphasis is put on early diagnosis and its impact on prognosis of patients. The management should be individualized. The gold standard is surgical treatment with complete excision of the infected foreign material with debridement of the surrounding tissue and repair of vascular continuity by extra-anatomic bypass or in situ bypass with autologous femoral vein or cryopreserved arterial allografts...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28334430/radiofrequency-ablation-using-a-10-mm-target-margin-for-small-hepatocellular-carcinoma-in-patients-with-liver-cirrhosis-a-prospective-randomized-trial
#8
Mingheng Liao, Xiaofei Zhong, Jingyi Zhang, Yangyang Liu, Zexin Zhu, Hong Wu, Yong Zeng, Jiwei Huang
BACKGROUND AND OBJECTIVES: To compare 3-year clinical outcomes of radiofrequency ablation (RFA) targeting 5- or 10-mm margins for small hepatocellular carcinomas (HCCs) in cirrhotic patients. METHODS: In total, 96 cirrhotic patients with a small solitary HCC (diameter ≤3 cm) were included in this prospective trial (ChiCTRTRC-10000954). Patients were stratified by Child-Pugh class and randomly allocated into groups targeting either wide margins (≥10 mm, WM) or narrow margins (≥5 mm but <10 mm, NM)...
March 23, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28334428/discrepancy-between-ctnm-and-ptnm-staging-of-oral-cavity-cancers-and-its-prognostic-significance
#9
Nayeon Choi, Yangseop Noh, Eun Kyu Lee, Manki Chung, Chung-Hwan Baek, Kwan-Hyuck Baek, Han-Sin Jeong
INTRODUCTION: Accurate tumor-node-metastasis(TNM) staging of oral cavity cancer(OCC) is very important in the management of this dismal disease. However, stage migration from cTNM to pTNM was found in a portion of OCC patients. The objective of this study was to determine the possible causes of discrepancy between cTNM and pTNM in OCC and the clinical impacts of stage migration. METHODS: Clinical and pathological data of 252 OCC patients were retrospectively reviewed and compared each other...
March 23, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28334182/evaluation-of-different-applications-of-ethanedinitrile-c2n2-in-various-fumigation-chambers-for-control-of-monochamus-alternatus-coleoptera-cerambycidae-in-naturally-infested-logs
#10
Byung-Ho Lee, Chung-Gyoo Park, Yonglin Ren
Monochamus alternatus Hopeis is an important vector of nematode pests of timber in Korea, particularly Bursaphelenchus xylophilus (Steiner & Buhrer) Nickle. Previously, we reported that ethanedinitrile (C2N2) has the potential to replace methyl bromide and metam sodium to control M. alternatus larvae and B. xylophilus under low-temperature (<5 °C) conditions. Herein, we report on fumigation trials of C2N2 over a 3-yr period (February 2013-October 2015) conducted at higher temperatures. The trials were conducted under 24 different conditions that incorporated varying fumigation chamber types (plastic sheeting-enclosed chambers of differing construction or an ISO shipping container, interior size: 5...
March 3, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334078/relationships-between-morphologic-and-functional-patterns-in-the-polymicrogyric-cortex
#11
Matteo Lenge, Carmen Barba, Domenico Montanaro, Gayane Aghakhanyan, Francesca Frijia, Renzo Guerrini
Polymicrogyria is a malformation of cortical folding and layering underlying different cognitive and neurological manifestations. The polymicrogyric cortex has heterogeneous morphofunctional patterns, qualitatively described at magnetic resonance imaging (MRI) by variable severity gradients and functional activations. We investigated the link between abnormal cortical folding and cortical function in order to improve surgical planning for patients with polymicrogyria and intractable epilepsy. We performed structural and functional MRI on 14 patients with perisylvian polymicrogyria and adopted surface-based methods to detect alterations of cortical thickness (CT) and local gyrification index (LGI) compared with normal cortex (30 age-matched subjects)...
February 18, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28334010/automated-assessment-of-bone-changes-in-cross-sectional-micro-ct-studies-of-murine-experimental-osteoarthritis
#12
Patricia Das Neves Borges, Tonia L Vincent, Massimo Marenzana
OBJECTIVE: The degradation of articular cartilage, which characterises osteoarthritis (OA), is usually paired with excessive bone remodelling, including subchondral bone sclerosis, cysts, and osteophyte formation. Experimental models of OA are widely used to investigate pathogenesis, yet few validated methodologies for assessing periarticular bone morphology exist and quantitative measurements are limited by manual segmentation of micro-CT scans. The aim of this work was to chart the temporal changes in periarticular bone in murine OA by novel, automated micro-CT methods...
2017: PloS One
https://www.readbyqxmd.com/read/28333782/the-normal-adult-human-internal-auditory-canal-a-volumetric-multidetector-computed-tomography-study
#13
Fahad Essbaiheen, Tarek Hegazi, Lorne Rosenbloom
OBJECTIVE: The purpose of this study was to demonstrate that volumetric analysis of multidetector computed tomography (CT) images can be used to calculate the volume of the adult human internal auditory canal (IAC) reproducibly, and to describe the range of normal IAC volumes in the adult population with subgroup analysis of sex, age, and laterality. BACKGROUND: Previous studies of the IAC have typically used measurements in two dimensions or by using casts of cadavers to measure IAC volumes...
March 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28333548/utility-of-pet-ct-after-cryoablation-for-early-identification-of-local-tumor-progression-in-osseous-metastatic-disease
#14
Ann T Packard, Stephen M Broski, Matthew R Callstrom, Thomas D Atwell, Grant D Schmit, John J Schmitz, Jonathan M Morris, Christopher H Hunt, A Nicholas Kurup
OBJECTIVE: The purpose of this study is to evaluate the utility of combined PET/CT for the detection of early local tumor progression after cryoablation of bone metastases. MATERIALS AND METHODS: A retrospective single-institution review revealed 61 consecutive patients with 80 separate bone metastases treated with cryoablation who were evaluated with a preablation PET/CT and at least two postablation PET/CT examinations between September 2007 and July 2015. Patients were excluded if they had local therapy or pathologic fracture after ablation...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333543/corrosive-induced-carcinoma-of-esophagus-esophagographic-and-ct-findings
#15
Seung Yeon Noh, Hyun Jin Kim, Hyun Joo Lee, Seong Ho Park, Jong Seok Lee, Ah Young Kim, Hyun Kwon Ha
OBJECTIVE: The purpose of this study was to evaluate the esophagographic and CT findings of corrosive esophageal cancer. MATERIALS AND METHODS: The records of all patients who presented with corrosive esophageal strictures at one institution between June 1989 and April 2015 were retrospectively identified. The search yielded the records of 15 patients with histopathologically proven esophageal cancer. Esophagograms (13 patients) and chest CT images (14 patients) were interpreted independently by two reviewers...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333541/extracolonic-findings-at-screening-ct-colonography-prevalence-benefits-challenges-and-opportunities
#16
B Dustin Pooler, David H Kim, Perry J Pickhardt
OBJECTIVE: Extracolonic findings at screening CT colonography (CTC) represent imaging findings incidentally detected outside the colon and rectum. Confusion regarding rates reported in the literature fuels controversy over the relative benefits versus harms of extracolonic findings. CONCLUSION: From an evidence-based approach, this article reviews the prevalence and benefits of and challenges raised by extracolonic findings, as well as opportunities to further leverage the effect of screening CTC...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333020/-18-f-choline-positron-emission-tomography-computed-tomography-and-multiparametric-magnetic-resonance-imaging-for-the-detection-of-early-local-recurrence-of-prostate-cancer-initially-treated-by-radiation-therapy-comparison-with-systematic-3-dimensional-transperineal
#17
Salim Kanoun, Paul Walker, Jean-Marc Vrigneaud, Edouard Depardon, Vincent Barbier, Olivier Humbert, Morgan Moulin, Gilles Créhange, Luc Cormier, Romaric Loffroy, François Brunotte, Alexandre Cochet
PURPOSE: To compare the diagnostic performance of (18)F-fluorocholine positron emission tomography/computed tomography (FCH-PET/CT), multiparametric prostate magnetic resonance imaging (mpMRI), and a combination of both techniques for the detection of local recurrence of prostate cancer initially treated by radiation therapy. METHODS AND MATERIALS: This was a retrospective, single-institution study of 32 patients with suspected prostate cancer recurrence who underwent both FCH-PET/CT and 3T mpMRI within 3 months of one another for the detection of recurrence...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28332867/age-related-changes-in-thoracic-skeletal-geometry-of-elderly-females
#18
Sven A Holcombe, Stewart C Wang, James B Grotberg
OBJECTIVE: Both females and the elderly have been identified as vulnerable populations with increased injury and mortality risk in multiple crash scenarios. Particularly in frontal impacts, older females show higher risk to the chest and thorax than their younger or male counterparts. Thoracic geometry plays a role in this increase, and this study aims to quantify key parts of that geometry in a way that can directly inform human body models that incorporate the concept of person age...
March 23, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28332731/undiagnosed-pancreatic-exocrine-insufficiency-and-chronic-pancreatitis-in-functional-gi-disorder-patients-with-diarrhea-or-abdominal-pain
#19
N J Talley, G Holtmann, N Q Nguyen, P R Gibson, P Bampton, M Veysey, J Wong, S Philcox, N Koloski, L Bunby, M Jones
BACKGROUND & AIMS: A previous UK study showed that 6.1% of patients with diarrhea-predominant IBS (IBS-D) had evidence of severe pancreatic exocrine insufficiency (PEI), but these findings need replication. We aimed to identify the prevalence of PEl based on faecal elastase stool testing in consecutive outpatients presenting with chronic unexplained abdominal pain and/or diarrhea and/or IBS-D. METHODS: Patients aged over 40 years presenting to hospital outpatient clinics from 6 sites within Australia with unexplained abdominal pain and/or diarrhea for at least 3 months and/or IBS-D were studied...
March 23, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28332669/multiple-imaging-and-excellent-anticancer-efficiency-of-an-upconverting-nanocarrier-mediated-by-single-near-infrared-light
#20
Yan Wang, Guixin Yang, Yanli Wang, Yanping Zhao, Haizhi Jiang, Yuyan Han, Piaoping Yang
It is difficult to meet the requirements of clinical diagnosis through a single imaging technique. Similarly, satisfactory therapy efficacy is also hard to achieve by a single therapeutic modality. It is therefore highly desirable and interesting to simultaneously achieve multimodal imaging and therapies in one single structure. In this study, we developed a core-shell-satellite NaGdF4:Yb,Er,Mn,Co@mSiO2-CuS structure using up-conversion luminescent (UCL) NaGdF4:Yb,Er,Mn,Co as the core, mesoporous silica as the layer, and the photoactive CuS nanoparticles as the satellites...
March 23, 2017: Nanoscale
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