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https://www.readbyqxmd.com/read/28319500/clinical-response-profile-of-metastatic-advanced-pulmonary-neuroendocrine-tumors-to-peptide-receptor-radionuclide-therapy-with-177lu-dotatate
#1
Rahul V Parghane, Sanjay Talole, Kumar Prabhash, Sandip Basu
OBJECTIVES: The aims of this study were to perform multiparametric response assessment of metastatic/advanced pulmonary neuroendocrine tumors (NETs) to Lu-DOTATATE peptide receptor radionuclide therapy (PRRT) (clinical, biochemical, molecular/structural imaging, and survival assessment) and to study the relationship between response, mortality, and overall survival with dual-tracer molecular imaging parameters. METHODS: Twenty-two patients (6 women, 16 men; median age, 44 years; range, 16-72 years) of histopathologically proven pulmonary NETs with metastatic/advanced disease were included and analyzed retrospectively...
March 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28319121/growth-altering-microbial-interactions-are-responsive-to-chemical-context
#2
Angela Liu, Anne M Archer, Matthew B Biggs, Jason A Papin
Microbial interactions are ubiquitous in nature, and are equally as relevant to human wellbeing as the identities of the interacting microbes. However, microbial interactions are difficult to measure and characterize. Furthermore, there is growing evidence that they are not fixed, but dependent on environmental context. We present a novel workflow for inferring microbial interactions that integrates semi-automated image analysis with a colony stamping mechanism, with the overall effect of improving throughput and reproducibility of colony interaction assays...
2017: PloS One
https://www.readbyqxmd.com/read/28318888/characterization-of-the-lung-parenchyma-using-ultrasound-multiple-scattering
#3
Kaustav Mohanty, John Blackwell, Thomas Egan, Marie Muller
The purpose of the study described here was to showcase the application of ultrasound to quantitative characterization of the micro-architecture of the lung parenchyma to predict the extent of pulmonary edema. The lung parenchyma is a highly complex and diffusive medium for which ultrasound techniques have remained qualitative. The approach presented here is based on ultrasound multiple scattering and exploits the complexity of ultrasound propagation in the lung structure. The experimental setup consisted of a linear transducer array with an 8-MHz central frequency placed in contact with the lung surface...
March 16, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28317087/imaging-and-clinicopathological-features-of-nivolumab-related-cholangitis-in-patients-with-non-small-cell-lung-cancer
#4
Hisato Kawakami, Junko Tanizaki, Kaoru Tanaka, Koji Haratani, Hidetoshi Hayashi, Masayuki Takeda, Ken Kamata, Mamoru Takenaka, Masatomo Kimura, Takaaki Chikugo, Takao Sato, Masatoshi Kudo, Akihiko Ito, Kazuhiko Nakagawa
Background Nivolumab demonstrates promising efficacy for the treatment of non-small cell lung cancer and other malignancies. The clinical benefit of nivolumab, however, may be hampered by specific immune-related adverse events (irAEs), and little is known regarding nivolumab-related cholangitis. Methods A computerized search of our clinical database identified 3 metastatic non-small cell lung cancer patients with nivolumab-related cholangitis. All patients were treated with intravenous nivolumab monotherapy (3...
March 20, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28316929/cytomegalovirus-pneumonitis-complicated-by-a-central-peribronchial-pattern-of-organising-pneumonia
#5
Maria M Cuadrado, Asia Ahmed, Ben Carpenter, Jeremy S Brown
We present five cases of cytomegalovirus (CMV) pneumonitis occurring in patients after recent T cell deplete allogeneic stem cell transplantation (AlloHSCT). These cases were complicated by an organising pneumonia (during the recovery period) with a predominantly central peribronchial pattern. All patients presented with evidence of active CMV pneumonitis which was treated successfully with anti-viral therapy but was followed by persistent severe dyspnoea, cough and hypoxia. High resolution computed tomography (HRCT) imaging showed widespread central peribronchial consolidation with traction bronchiectasis...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28315975/spatial-patterns-and-frequency-distributions-of-regional-deformation-in-the-healthy-human-lung
#6
Daniel E Hurtado, Nicolás Villarroel, Carlos Andrade, Jaime Retamal, Guillermo Bugedo, Alejandro Bruhn
Understanding regional deformation in the lung has long attracted the medical community, as parenchymal deformation plays a key role in respiratory physiology. Recent advances in image registration make it possible to noninvasively study regional deformation, showing that volumetric deformation in healthy lungs follows complex spatial patterns not necessarily shared by all subjects, and that deformation can be highly anisotropic. In this work, we systematically study the regional deformation in the lungs of eleven human subjects by means of in vivo image-based biomechanical analysis...
March 18, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28315949/-89-zr-onartuzumab-pet-imaging-of-c-met-receptor-dynamics
#7
Martin Pool, Anton G T Terwisscha van Scheltinga, Arjan Kol, Danique Giesen, Elisabeth G E de Vries, Marjolijn N Lub-de Hooge
PURPOSE: c-MET and its ligand hepatocyte growth factor are often dysregulated in human cancers. Dynamic changes in c-MET expression occur and might predict drug efficacy or emergence of resistance. Noninvasive visualization of c-MET dynamics could therefore potentially guide c-MET-directed therapies. We investigated the feasibility of (89)Zr-labelled one-armed c-MET antibody onartuzumab PET for detecting relevant changes in c-MET levels induced by c-MET-mediated epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor erlotinib resistance or heat shock protein-90 (HSP90) inhibitor NVP-AUY-922 treatment in human non-small-cell lung cancer (NSCLC) xenografts...
March 19, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28315041/positive-pressure-ventilation-in-a-patient-with-a-right-upper-lobar-bronchocutaneous-fistula-right-upper-bronchus-occlusion-using-the-cuff-of-a-left-sided-double-lumen-endobronchial-tube
#8
Chieko Omori, Hiroaki Toyama, Yusuke Takei, Yutaka Ejima, Masanori Yamauchi
In patients with a bronchocutaneous fistula, positive pressure ventilation leads to air leakage and potential hypoxemia. A male patient with a right upper bronchocutaneous fistula was scheduled for esophageal reconstruction. His preoperative chest computed tomography image revealed aeration in the right middle and lower lobe, a large bulla in the left upper lobe, and pleural effusion and pneumonia in the left lower lobe. Therefore, left one-lung ventilation was considered to result in hypoxemia. Before anesthesia induction, the bronchocutaneous fistula was covered with gauze and film to prevent air leakage...
March 17, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28314540/technological-advances-shed-light-on-left-ventricular-cardiac-disturbances-in-cystic-fibrosis
#9
REVIEW
Zahra N Sayyid, Zachary M Sellers
Cystic fibrosis (CF), the most common autosomal recessive lethal disease in Caucasians, causes chronic pulmonary disease and can lead to cor pulmonale with right ventricular dysfunction. The presence of the cystic fibrosis transmembrane conductance regulator (CFTR) in cardiac myocardia has prompted debate regarding possible defective ion channel-induced cardiomyopathy. Clinical heart disease in CF is considered rare and is restricted to case reports. It has been unclear if this is due to the lack of physiological importance of CFTR in the heart, the relatively short lifespan of those with CF, or a technical inability to detect subclinical disease...
March 14, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28314258/antimetastatic-efficacy-of-the-combination-of-caffeine-and-valproic-acid-on-an-orthotopic-human-osteosarcoma-cell-line-model-in-nude-mice
#10
Kentaro Igarashi, Kei Kawaguchi, Tasuku Kiyuna, Takashi Murakami, Norio Yamamoto, Katsuhiro Hayashi, Hiroaki Kimura, Shinji Miwa, Hiroyuki Tsuchiya, Robert M Hoffman
AIM: We have previously reported that caffeine can enhance chemotherapy efficacy of bone and soft tissue sarcoma via cell-cycle perturbation. Valproic acid has histone deacetylase (HDAC) inhibitory activity. We have also reported the anti-tumor efficacy of combination treatment with caffeine and valproic acid against osteosarcoma primary tumors in a cell-line orthotopic mouse model. MATERIALS AND METHODS: In this study, we performed combination treatment of caffeine and valproic acid on osteosarcoma cell lines in vitro and in spontaneous and experimental lung metastasis mouse models of osteosarcoma...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28306727/biodistribution-and-pet-imaging-of-pharmacokinetics-of-manganese-in-mice-using-manganese-52
#11
A Lake Wooten, Tolulope A Aweda, Benjamin C Lewis, Rebecca B Gross, Suzanne E Lapi
Manganese is essential to life, and humans typically absorb sufficient quantities of this element from a normal healthy diet; however, chronic, elevated ingestion or inhalation of manganese can be neurotoxic, potentially leading to manganism. Although imaging of large amounts of accumulated Mn(II) is possible by MRI, quantitative measurement of the biodistribution of manganese, particularly at the trace level, can be challenging. In this study, we produced the positron-emitting radionuclide 52Mn (t1/2 = 5.6 d) by proton bombardment (Ep<15 MeV) of chromium metal, followed by solid-phase isolation by cation-exchange chromatography...
2017: PloS One
https://www.readbyqxmd.com/read/28306214/the-prognostic-value-of-early-radiographic-response-in-children-and-adolescents-with-embryonal-rhabdomyosarcoma-stage-iv-metastases-confined-to-the-lungs-a-report-from-the-cooperative-weichteilsarkom-studiengruppe-cws
#12
Monika Sparber-Sauer, Thekla von Kalle, Guido Seitz, Tobias Dantonello, Monika Scheer, Marc Münter, Joerg Fuchs, Ruth Ladenstein, Stefan S Bielack, Thomas Klingebiel, Ewa Koscielniak
BACKGROUND: Patients with metastatic rhabdomyosarcoma (RMS) have a poor prognosis apart from children with embryonal RMS whose metastases are confined to the lungs (PRME). The prognostic significance of response in patients with metastatic disease is still unknown and optimal treatment remains to be defined. METHODS: Patient-, tumor- and treatment-related factors of patients with PRME treated on multiple prospective trials of the Cooperative Weichteilsarkom Studiengruppe (CWS) (1981-2013) were analyzed with a focus on response to induction chemotherapy...
March 17, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28304255/neurocysticercosis-in-a-rhesus-macaque-macaca-mulatta
#13
Jessica M Johnston, Cecilia D Dyer, Susan Madison-Antenucci, Kimberly Am Mergen, Christin L Veeder, Angela K Brice
An 8-y-old, intact, male rhesus macaque (Macaca mulatta) was sedated to undergo MRI in preparation for the implantation of cranial hardware. During imaging, 9 focal lesions were noted in the brain and musculature of the head. The lesions were hyperechoic with hypoechoic rims. The animal was deemed inappropriate for neuroscience research, and euthanasia was elected. Gross examination revealed multiple round, thick-walled, fluid-filled cysts (diameter, approximately 0.5 cm) in multiple tissues: one each in the left caudal lung lobe, left masseter muscle, and the dura overlying the brain and 8 throughout the gray and white matter of the brain parenchyma...
December 1, 2016: Comparative Medicine
https://www.readbyqxmd.com/read/28304223/metastatic-clival-chordoma-a-case-report-of-multiple-extraneural-metastases-following-resection-and-proton-beam-radiotherapy-in-a-5-year-old-boy
#14
Martin J Rutkowski, Harjus S Birk, Matthew D Wood, Arie Perry, Theodore Nicolaides, Christopher P Ames, Nalin Gupta
The authors report the case of a 5-year-old boy in whom extraneural metastases developed 5 years after he underwent an occipitocervical fusion and transoral approach to treat a clival chordoma without local recurrence. Following primary resection, the patient's postoperative course was complicated by recurrent meningitis secondary to CSF leak, which responded to antibiotics, and communicating hydrocephalus, for which a ventriculoperitoneal shunt was placed. The patient then underwent postoperative proton beam radiotherapy...
March 17, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28303733/bi-parametric-magnetic-resonance-imaging-applied-to-obstetrics
#15
Lucia Manganaro, Valeria Vinci, Antonella Giancotti, Sandro Gerli, Denis A Cozzi, Teresa Pusiol, Michele Scialpi, Luca Roncati
Foetal magnetic resonance imaging (MRI) plays an increasingly important role in the diagnosis of foetal abnormalities. Over the years, we have successfully applied bi-parametric MRI (bp-MRI) to the following obstetric conditions: (1) neurologic vascular diseases; (2) assessment of lung parenchyma maturation; (3) renal pathologies, such as polycystic kidney, suspected renal infarction, unilateral or bilateral renal agenesis; (4) placental pathologies, as twin-twin transfusion syndrome or placenta accreta; (5) benignant and malignant congenital tumours or cysts of the liver, such as haemangioendothelioma, hepatoblastoma or metastatic neuroblastoma, of the kidney (e...
March 17, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28301997/hepatocellular-carcinoma-in-the-cirrhotic-liver-evaluation-using-computed-tomography-and-magnetic-resonance-imaging
#16
Mehmet Coskun
Hepatocellular carcinoma is the fifth most common tumor in patients worldwide and the third most common cause of cancer-related death, after lung and stomach cancer. Cirrhosis of the liver is the strongest predisposing factor for hepatocellular carcinoma, with approximately 80% of cases of hepatocellular carcinoma developing in a cirrhotic liver. The annual incidence of hepatocellular carcinoma is 2.0% to 6.6% in patients with cirrhosis compared with 0.4% in patients without cirrhosis. The 5-year survival rates of patients undergoing curative therapies for hepatocellular carcinoma, including liver transplant, hepatic resection, and percutaneous ablative techniques, range between 40% and 75%...
March 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28301584/diagnostic-accuracy-and-added-value-of-dual-energy-subtraction-radiography-compared-to-standard-conventional-radiography-using-computed-tomography-as-standard-of-reference
#17
Katharina Martini, Marco Baessler, Stephan Baumueller, Thomas Frauenfelder
PURPOSE: To retrospectively evaluate diagnostic performance of dual-energy subtraction radiography (DESR) for interpretation of chest radiographs compared to conventional radiography (CR) using computed tomography (CT) as standard of reference. MATERIAL AND METHODS: A total of 199 patients (75 female, median age 67) were included in this institutional review board (IRB)-approved clinical trial. All patients were scanned in posteroanterior and lateral direction with dual-shot DE-technique...
2017: PloS One
https://www.readbyqxmd.com/read/28301537/dedifferentiated-chondrosarcoma-radiological-features-prognostic-factors-and-survival-statistics-in-23-patients
#18
Chenglei Liu, Yan Xi, Mei Li, Qiong Jiao, Huizhen Zhang, Qingcheng Yang, Weiwu Yao
BACKGROUND: Dedifferentiated chondrosarcoma is a rare, highly malignant tumor with a poor survival. There are many confusing issues concerning the imaging feature that can facilitate early diagnosis and the factors that might be related to outcomes. METHODS: Twenty-three patients with dedifferentiated chondrosarcoma confirmed by pathology were retrospectively reviewed from 2008 to 2015. The patients' clinical information, images from radiographs (n = 17), CT (n = 19), and MRI (n = 17), histological features, treatment and prognosis were analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28301535/quantitative-assessment-of-pulmonary-alveolar-proteinosis-pap-with-ultra-dose-ct-and-correlation-with-pulmonary-function-tests-pfts
#19
Xin Sui, Qianni Du, Kai-Feng Xu, Xinlun Tian, Lan Song, Xiao Wang, Xiaoli Xu, Zixing Wang, Yuyan Wang, Jun Gu, Wei Song, Zhengyu Jin
BACKGROUND: The purpose of this study was to investigate whether ultra-low-dose chest computed tomography (CT) can be used for visual assessment of CT features in patients with pulmonary alveolar proteinosis (PAP) and to evaluate the relationship between the quantitative analysis of the ultra-low-dose CT scans and the pulmonary function tests (PFTs). METHODS: Thirty-eight patients (mean [SD] age, 44.47 [12.28] years; 29 males, 9 females) with PAP were enrolled and subjected to two scans each with low-dose CT (reference parameters: 120 kV and 50 mAs) and ultra-low-dose CT (reference parameters, 80 kV, 25 mAs)...
2017: PloS One
https://www.readbyqxmd.com/read/28301261/a-radiolabeled-fully-human-antibody-to-human-aspartyl-asparaginyl-%C3%AE-hydroxylase-is-a-promising-agent-for-imaging-and-therapy-of-metastatic-breast-cancer
#20
Ekaterina Revskaya, Zewei Jiang, Alfred Morgenstern, Frank Bruchertseifer, Muctarr Sesay, Susan Walker, Steven Fuller, Michael S Lebowitz, Claudia Gravekamp, Hossein A Ghanbari, Ekaterina Dadachova
There is a need for novel effective and safe therapies for metastatic breast cancer based on targeting tumor-specific molecular markers of cancer. Human aspartyl (asparaginyl) β-hydroxylase (HAAH) is a highly conserved enzyme that hydroxylates epidermal growth factor-like domains in transformation-associated proteins and is overexpressed in a variety of cancers, including breast cancer. A fully human monoclonal antibody (mAb) PAN-622 has been developed to HAAH. In this study, they describe the development of PAN-622 mAb as an agent for imaging and radioimmunotherapy of metastatic breast cancer...
March 2017: Cancer Biotherapy & Radiopharmaceuticals
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