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https://www.readbyqxmd.com/read/28730614/synchrotron-tomographic-images-from-human-lung-adenocarcinoma-three-dimensional-reconstruction-and-histologic-correlations
#1
Eunjue Yi, Sung-Mi Han, Ji-Eun Chang, Hong-Tae Kim, Jong-Ki Kim, Seung-Jun Seo, Jin-Haeng Chung, Sanghoon Jheon
High-resolution tomographic images using synchrotron X-rays are expected to provide detailed reflection of microstructures, thereby allowing for the examination of histologic structures without destruction of the specimen. This study aims to evaluate the synchrotron tomographic images of mixed ground-glass opacity excised on 5-mm sections in comparison to pathologic examination. The Institutional Review Board of our institute approved this retrospective study, and written informed consent was obtained from each patient whose lung tissue would be used...
July 21, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28718917/proliferation-of-elastic-fibers-in-idiopathic-pulmonary-fibrosis-a-whole-slide-image-analysis-and-comparison-with-pleuroparenchymal-fibroelastosis
#2
Yoshiaki Kinoshita, Kentaro Watanabe, Hiroshi Ishii, Hisako Kushima, Masaki Fujita, Kazuki Nabeshima
BACKGROUND: We occasionally encounter patients with idiopathic pulmonary fibrosis (IPF) who have similar imaging patterns to pleuroparenchymal fibroelastosis (PPFE) in the upper lung fields but are not diagnosed as PPFE clinically. The clinicopathological features and intrapulmonary distribution of elastic fibers and collagen fibers in these patients have not been fully elucidated. METHODS: We retrospectively reviewed the medical records of patients with a clinical diagnosis of IPF and selected the consecutive patients who received autopsy or pneumonectomy for lung transplantation...
July 18, 2017: Histopathology
https://www.readbyqxmd.com/read/28681665/stimulatory-effects-of-curcumin-and-quercetin-on-posttranslational-modifications-of-p53-during-lung-carcinogenesis
#3
P Zhang, Xy Zhang
Lung cancer is responsible for increase in mortality due to cancer-related deaths, and new approaches are being explored for the betterment of the situation. In the present study, chemopreventive efficacy of curcumin and quercetin was investigated against benzo(a)pyrene (BP)-induced lung carcinogenesis. The mice were segregated into five groups, which included normal control, BP-treated, BP + curcumin-treated, BP + quercetin-treated, and BP + curcumin + quercetin-treated groups. The morphological and histological analyses of tumor nodules confirmed lung carcinogenesis22 weeks after weeks single intraperitoneal injection of BP at a dose of 100 mg/kg body weight to mice...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28669561/effects-of-icariin-on-asthma-mouse-model-are-associated-with-regulation-of-prostaglandin-d2-level
#4
J Qiao, S Sun, L Yuan, J Wang
BACKGROUND: We aimed to observe the effect of icariin on an asthma mouse model and explore the potential underlying mechanisms. METHODS: The asthma mouse model was established by ovalbumin (OVA) sensitisation and respiratory syncytial virus (RSV) infection and then treated with icariin. Airway resistance was assessed by whole body plethysmograph. In addition, pathological slides were stained with haematoxylin-eosin, and the peribronchial inflammation was observed microscopically...
June 29, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28657157/cyberknife-with-integrated-ct-on-rails-system-description-and-first-clinical-application-for-pancreas-sbrt
#5
Chrysi Papalazarou, Gijsbert J Klop, Maaike T W Milder, Johannes P A Marijnissen, Vikas Gupta, Ben J M Heijmen, Joost J M E Nuyttens, Mischa S Hoogeman
PURPOSE: This paper reports on the integration of a sliding-gantry CT-on-rails with a robotic linear accelerator. METHODS: The system consists of a SOMATOM Definition AS CT scanner (Siemens Healthcare, Forchheim, Germany) and a CyberKnife M6 FIM (Accuray, Inc., Sunnyvale, CA, USA). Additional movement programs were implemented in the robotic treatment table (RoboCouch, Accuray Inc.) to move between CT and treatment position. Acceptance testing was performed on the CT scanner according to AAPM83 guidelines, as well as safety tests for collision avoidance and electromagnetic (EM) compatibility...
June 28, 2017: Medical Physics
https://www.readbyqxmd.com/read/28643736/the-pitfalls-in-cytology-diagnosis-of-poorly-differentiated-neuroendocrine-carcinoma-of-lung-and-their-treatment-response
#6
Debarshi Saha, Ankit Kumar, Sourjya Banerjee, M Nirupama, H B Sridevi, Priya Garg, Flora D Lobo
CONTEXT: Lung is the most common site of small cell carcinoma (SCLC) - a poorly differentiated neuroendocrine carcinoma (PDNEC). SCLC comprises 15-20% of the invasive cancers of the lung. AIM: This study was conducted to appraise the accuracy and pitfalls of the diagnosis of PDNEC on cytology along with treatment responses if available. SETTINGS AND DESIGN: Retrospective study for 2 years yielded 21 cases on cytology. SUBJECTS AND METHODS: Slides of fine-needle aspiration of lymph nodes, the tumor, bronchial brush, and bronchoalveolar lavage specimens were used...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28631533/u-can-a-prospective-longitudinal-collection-of-biomaterials-and-clinical-information-from-adult-cancer-patients-in-sweden
#7
Bengt Glimelius, Beatrice Melin, Gunilla Enblad, Irina Alafuzoff, Anna Beskow, Håkan Ahlström, Anna Bill-Axelson, Helgi Birgisson, Ove Björ, Per-Henrik Edqvist, Tony Hansson, Thomas Helleday, Per Hellman, Kerstin Henriksson, Göran Hesselager, Magnus Hultdin, Michael Häggman, Martin Höglund, Håkan Jonsson, Chatarina Larsson, Henrik Lindman, Ingrid Ljuslinder, Stephanie Mindus, Peter Nygren, Fredrik Pontén, Katrine Riklund, Richard Rosenquist, Fredrik Sandin, Jochen M Schwenk, Roger Stenling, Karin Stålberg, Peter Stålberg, Christer Sundström, Camilla Thellenberg Karlsson, Bengt Westermark, Anders Bergh, Lena Claesson-Welsh, Richard Palmqvist, Tobias Sjöblom
BACKGROUND: Progress in cancer biomarker discovery is dependent on access to high-quality biological materials and high-resolution clinical data from the same cases. To overcome current limitations, a systematic prospective longitudinal sampling of multidisciplinary clinical data, blood and tissue from cancer patients was therefore initiated in 2010 by Uppsala and Umeå Universities and involving their corresponding University Hospitals, which are referral centers for one third of the Swedish population...
June 20, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28622180/a-prospective-study-of-loose-tissue-fragments-in-non-small-cell-lung-cancer-resection-specimens-an-alternative-view-to-spread-through-air-spaces
#8
Hans Blaauwgeers, Douglas Flieder, Arne Warth, Alexander Harms, Kim Monkhorst, Birgit Witte, Erik Thunnissen
The World Health Organization Classification of Lung Tumors considers "Spread Through Air Spaces" a form of invasion in lung adenocarcinoma. The recently described spread of free-floating cell clusters during lung specimen sectioning, otherwise known as "Spread Through A Knife Surface," represents an ex vivo artifact. The purpose of this study was to prospectively investigate the presence and frequency of these free-floating tumor cell clusters in surgically resected lung cancer specimens and their possible relation to gross examination procedures...
June 15, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28622179/paucicellular-fibrointimal-proliferation-characterizes-pediatric-pulmonary-vein-stenosis-clinicopathologic-analysis-of-213-samples-from-97-patients
#9
Alexandra E Kovach, Philip M Magcalas, Christina Ireland, Kerry McEnany, Andre M Oliveira, Mark W Kieran, Christopher W Baird, Kathy Jenkins, Sara O Vargas
Pulmonary vein stenosis (PVS) is a luminal narrowing of extrapulmonary pulmonary veins. In pediatric patients, it arises following repair of congenital heart disease, particularly anomalous pulmonary venous return; in lung disease, especially prematurity; and rarely in isolation. The etiology is unknown and the course often fatal without lung transplantation. We hypothesized that systematic clinicopathologic review of pediatric PVS could provide further pathogenic insight. We included patients who underwent first resection of pulmonary venous tissue for symptomatic PVS at our pediatric referral center from 1995 to 2014...
June 15, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28603647/multicentric-study-of-endobronchial-ultrasound-transbronchial-needle-aspiration-for-lung-cancer-staging-in-italy
#10
Nicola Rotolo, Andrea Imperatori, Mario Nosotti, Luigi Santambrogio, Alessandro Palleschi, Lorenzo Dominioni, Giorgio Crosta, Pierfranco Foccoli, Gianluca Pariscenti, Eliseo Passera, Luigi Bortolotti, Giovanni Falezza, Maurizio Infante, Elisa Daffrè, Maria Cattoni, Lorenzo Rosso
BACKGROUND: Multi-institutional studies of endobronchial-ultrasound transbronchial needle aspiration (EBUS-TBNA) for mediastinal staging in lung cancer are scarce. It is unclear if the high diagnostic performance of EBUS-TBNA reported by experts' guidelines can be generally achieved. METHODS: This is a retrospective study performed in five tertiary referral centers of thoracic surgery in Italy, to assess the EBUS-TBNA diagnostic performance in patients with non-small cell lung cancer (NSCLC)...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28572686/use-of-patterned-collagen-coated-slides-to-study-normal-and-scleroderma-lung-fibroblast-migration
#11
Bahja Ahmed Abdi, Henry Lopez, Sarah Karrar, Elisabetta Renzoni, Athol Wells, Angela Tam, Oseme Etomi, J Justin Hsuan, George R Martin, Xu Shiwen, Christopher P Denton, David Abraham, Richard Stratton
Systemic sclerosis (SSc) is a spreading fibrotic disease affecting the skin and internal organs. We aimed to model pathogenic fibroblast migration in SSc in order to identify enhancing factors, measure the effect of migrating cells on underlying extracellular matrix (ECM) and test possible therapeutic inhibitors. Novel patterned collagen substrates were used to investigate alignment and migration of skin and lung fibroblasts from SSc patients and healthy controls. Normal lung but not skin fibroblasts consistently elongated and aligned with underlying collagen and migrated dependent on PDGF or serum...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28572122/chemotherapy-for-pulmonary-large-cell-neuroendocrine-carcinomas-does-the-regimen-matter
#12
Jules L Derks, Robert Jan van Suylen, Erik Thunnissen, Michael A den Bakker, Harry J Groen, Egbert F Smit, Ronald A Damhuis, Esther C van den Broek, Ernst-Jan M Speel, Anne-Marie C Dingemans
Pulmonary large cell neuroendocrine carcinoma (LCNEC) is rare. Chemotherapy for metastatic LCNEC ranges from small cell lung carcinoma (SCLC) regimens to nonsmall cell lung carcinoma (NSCLC) chemotherapy regimens. We analysed outcomes of chemotherapy treatments for LCNEC.The Netherlands Cancer Registry and Netherlands Pathology Registry (PALGA) were searched for patients with stage IV chemotherapy-treated LCNEC (2003-2012). For 207 patients, histology slides were available for pathology panel review. First-line platinum-based combined chemotherapy was clustered as "NSCLC-t", comprising gemcitabine, docetaxel, paclitaxel or vinorelbine; "NSCLC-pt", with pemetrexed treatment only; and "SCLC-t", consisting of etoposide chemotherapy...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28557526/molecular-profiling-of-malignant-pleural-effusion-in-metastatic-non-small-cell-lung-carcinoma-the-effect-of-preanalytical-factors
#13
Jamal Carter, James Adam Miller, David Feller-Kopman, David Ettinger, David Sidransky, Zahra Maleki
RATIONALE: Non-small-cell lung cancer (NSCLC)-associated malignant pleural effusions (MPEs) are sometimes the only available specimens for molecular analysis. OBJECTIVES: This study evaluates diagnostic yield of NSCLC-associated MPE, its adequacy for molecular profiling and the potential influence of MPE volume/cellularity on the analytic sensitivity of our assays. METHODS: Molecular results of 50 NSCLC-associated MPE cases during a 5-year period were evaluated...
July 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28557070/color-and-power-doppler-sonography-for-pneumothorax-detection
#14
John R Richards, Julianne M Awrey, Sarah E Medeiros, John P McGahan
The use of B- and M-mode sonography for detection of pneumothorax has been well described and studied. It is now widely incorporated by sonographers, emergency physicians, trauma surgeons, radiologists, and critical care specialists worldwide. Lung sonography can be performed rapidly at the bedside or in the prehospital setting. It is more sensitive, specific, and accurate than plain chest radiography. The use of color and power Doppler sonography as an adjunct to B- and M-mode imaging for detection of pneumothorax has been described in a small number of studies and case reports but is much less widely known or used...
May 30, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28544679/sima-a-simplified-migration-assay-for-analyzing-neutrophil-migration
#15
Markus Weckmann, Tim Becker, Gyde Nissen, Martin Pech, Matthias V Kopp
In lung inflammation, neutrophils are the first leukocytes migrating to an inflammatory site, eliminating pathogens by multiple mechanisms. The term "migration" describes several stages of neutrophil movement to reach the site of inflammation, of which the passage of the interstitium and basal membrane of the airway are necessary to reach the site of bronchial inflammation. Currently, several methods exist (e.g., Boyden Chamber, under-agarose assay, or microfluidic systems) to assess neutrophil mobility. However, these methods do not allow for parameterization on single cell level, that is, the individual neutrophil pathway analysis is still considered challenging...
May 19, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28535501/is-the-morning-sputum-sample-superior-to-the-fresh-sputum-sample-for-the-detection-of-malignant-cells
#16
Maya S Uke, Saleem Pathuthara, Abida Shaikh, Rajiv Kumar, Shubhada Kane
INTRODUCTION: Sputum cytology is a well-established technique for the detection of lung malignancies. Generally, random or morning samples are used. OBJECTIVES: To evaluate the diagnostic yield of morning sputum and compare it with that of fresh samples. MATERIALS AND METHODS: Patients were instructed to bring a morning sputum sample to the laboratory in a clean plastic container, without any fixative and within 2-3 h of collection. Fresh sputum was then collected in the laboratory from these same patients...
2017: Acta Cytologica
https://www.readbyqxmd.com/read/28503247/reconfigurable-microfluidic-device-with-discretized-sidewall
#17
Masahiro Oono, Keisuke Yamaguchi, Amirul Rasyid, Atsushi Takano, Masato Tanaka, Nobuyuki Futai
Various microfluidic features, such as traps, have been used to manipulate flows, cells, and other particles within microfluidic systems. However, these features often become undesirable in subsequent steps requiring different fluidic configurations. To meet the changing needs of various microfluidic configurations, we developed a reconfigurable microfluidic channel with movable sidewalls using mechanically discretized sidewalls of laterally aligned rectangular pins. The user can deform the channel sidewall at any time after fabrication by sliding the pins...
May 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28498282/tumor-spread-through-air-spaces-is-an-independent-predictor-of-recurrence-free-survival-in-patients-with-resected-lung-squamous-cell-carcinoma
#18
Kyuichi Kadota, Yoshio Kushida, Naomi Katsuki, Ryou Ishikawa, Emi Ibuki, Mutsumi Motoyama, Kazuhito Nii, Hiroyasu Yokomise, Shuji Bandoh, Reiji Haba
Tumor spread through air spaces (STAS) is a newly recognized pattern of invasion in lung adenocarcinoma. However, clinical significance of STAS has not yet been characterized in lung squamous cell carcinoma. In this study, we investigated whether STAS could determine clinical outcome in Japanese patients with lung squamous cell carcinoma. We reviewed tumor slides from surgically resected lung squamous cell carcinomas (n=216). STAS was defined as tumor cells within air spaces in the lung parenchyma beyond the edge of the main tumor...
August 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28489809/cannabis-induced-bullous-lung-disease-leading-to-pneumothorax-case-report-and-literature-review
#19
Rashmi Mishra, Ravi Patel, Misbahuddin Khaja
RATIONALE: Marijuana use has been increasing in the United States among college students and young adults. Marijuana use has been associated with bullous lung disease which can lead to pneumothorax. There are other recreational drugs like methylphenidate, cocaine and heroin which have been associated with pneumothorax. PATIENT CONCERNS: We present a case of a 30-year-old man with spontaneous pneumothorax associated with marijuana use. The patient had no medical conditions and presented to the emergency room with chest pain...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28477007/tissue-recommendations-for-precision-cancer-therapy-using-next-generation-sequencing-a-comprehensive-single-cancer-center-s-experiences
#20
Minho Cho, Soomin Ahn, Mineui Hong, Heejin Bang, Michael Van Vrancken, Seungtae Kim, Jeeyun Lee, Se Hoon Park, Joon Oh Park, Young Suk Park, Ho Yeong Lim, Won Ki Kang, Jong-Mu Sun, Se Hoon Lee, Myung-Ju Ahn, Keunchil Park, Duk Hwan Kim, Seunggwan Lee, Woongyang Park, Kyoung-Mee Kim
To generate accurate next-generation sequencing (NGS) data, the amount and quality of DNA extracted is critical. We analyzed 1564 tissue samples from patients with metastatic or recurrent solid tumor submitted for NGS according to their sample size, acquisition method, organ, and fixation to propose appropriate tissue requirements.Of the 1564 tissue samples, 481 (30.8%) consisted of fresh-frozen (FF) tissue, and 1,083 (69.2%) consisted of formalin-fixed paraffin-embedded (FFPE) tissue. We obtained successful NGS results in 95...
June 27, 2017: Oncotarget
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