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https://www.readbyqxmd.com/read/29218678/low-dose-ct-for-lung-cancer-screening-opportunities-and-challenges
#1
Hongbing Shen
Lung cancer is among the most frequently diagnosed cancers worldwide and the leading cause of cancer death in both males and females. Screening for lung cancer coupled with earlier intervention has long been studied as an approach to mortality reduction. However, minimal progress was achieved until recently, when lowdose spiral computed tomography (LDCT) screening demonstrated a 20% reduction in mortality from lung cancer in a randomized controlled trial (RCT), the National Lung Screening Trial, from the United States...
December 7, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/29218257/pulmonary-tuberculosis-versus-recurrent-chemotherapy-induced-pneumonitis-a-clinical-dilemma
#2
Gulrayz Ahmed, Muhammad W Saif
Chemotherapy-induced lung toxicity can affect pulmonary parenchyma, pleura, airways, pulmonary vascular system, mediastinum or the neuromuscular system that is responsible for respiration. Chemotherapy-induced pulmonary toxicity is a diagnosis of exclusion. When the patients with malignancies develop pulmonary toxicity such as pneumonitis and distinguishing it from alternative diseases such as infectious, thrombotic, cardiac, malignant or exacerbation of chronic lung conditions can be difficult. Moreover, such patients are often immunosuppressed, physically stressed from the underlying disease and the cancer treatment and hence, more susceptible to usual and unusual or opportunistic infections...
October 4, 2017: Curēus
https://www.readbyqxmd.com/read/29216824/use-of-a-mixed-culture-strategy-to-isolate-halophilic-bacteria-with-antibacterial-and-cytotoxic-activity-from-the-manaure-solar-saltern-in-colombia
#3
Natalia Conde-Martínez, Alejandro Acosta-González, Luis E Díaz, Edisson Tello
BACKGROUND: Water evaporation in solar salterns creates salinity gradients that promote the adaptation of microbial species to different salinities. This competitive habitat challenges the metabolic capabilities of microorganisms and promotes alterations in their production of secondary metabolites. Thus, solar salterns are a potentially important source of new natural products. In Colombia, the most important and representative solar saltern is located in Manaure (La Guajira) in the north of Colombia...
December 8, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/29214427/characterization-of-pd-l1-expression-in-chinese-non-small-cell-lung-cancer-patients-with-pten-expression-as-a-means-for-tissue-quality-screening
#4
Xu-Chao Zhang, Xu Cao, Chun Sun, Zhi Xie, Jian-Jun Guo, Jin-Ji Yang, Xue-Ning Yang, Hang-Jun Dai, Su-Chun Li, Xin-Ran Xu, Yun-Xia Zuo, Meng Chen, Hartmut Koeppen, Jing He, Astrid Kiermaier, David Shames, Gang Cheng, Yi-Long Wu
The goal of this study is to evaluate PD-L1 prevalence and its association with major clinical characteristics in Chinese non-small cell lung cancer (NSCLC) patients to inform the clinical development of anti-PD1/PD-L1 agents in this population. We used phosphatase and tensin homolog (PTEN) expression through IHC as a surrogate tissue quality marker to screen surgical NSCLC samples in tissue microarray (TMA; 172 cases) or whole-section (268 cases) format. The samples were then analyzed with a clinically validated PD-L1 IHC assay...
December 6, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29214205/simple-eye-movement-feedback-during-visual-search-is-not-helpful
#5
Trafton Drew, Lauren H Williams
Searching for targets in the visual world, or visual search, is something we all do every day. We frequently make 'false-negative' errors, wherein we erroneously conclude a target was absent when one was, in fact, present. These sorts of errors can have tremendous costs, as when signs of cancers are missed in diagnostic radiology. Prior research has characterized the cause of many of these errors as being due to failure to completely search the area where targets may be present; indeed, roughly one-third of chest nodules missed in lung cancer screening are never fixated (Drew, Võ, Olwal, Jacobson, Seltzer and Wolfe, Journal of Vision 13:3, 2013)...
2017: Cognitive Research: Principles and Implications
https://www.readbyqxmd.com/read/29214064/bronchoscopy-for-the-diagnosis-of-peripheral-lung-lesions
#6
REVIEW
Samjot Singh Dhillon, Kassem Harris
Peripheral pulmonary lesions (PPLs) are generally considered as lesions in the peripheral one-third of the lung although a precise definition and radiographic anatomical landmarks separating central and peripheral lesion does not yet exist. The radiographic detection of such lesions has increased significantly with the adoption of lung cancer screening programs. These lesions are not directly visible by regular flexible bronchoscopes as they are usually distal to the lobar and segmental bronchi. Traditionally, depending on location and clinical stage at presentation, these lesions were typically sampled by computerized tomography (CT) guided needle or surgical biopsy although some centers also used ultrasound and fluoroscopy guided percutaneous needle biopsy...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29212284/systematic-review-and-critique-of-circulating-mirnas-as-biomarkers-of-stage-i-ii-non-small-cell-lung-cancer
#7
REVIEW
Francesca Moretti, Paola D'Antona, Emanuele Finardi, Marco Barbetta, Lorenzo Dominioni, Albino Poli, Elisabetta Gini, Douglas M Noonan, Andrea Imperatori, Nicola Rotolo, Maria Cattoni, Paola Campomenosi
Selected circulating microRNAs (miRNAs) have been suggested for non-invasive screening of non-small cell lung cancer (NSCLC), however the numerous proposed miRNA signatures are inconsistent. Aiming to identify miRNAs suitable specifically for stage I-II NSCLC screening in serum/plasma samples, we searched the databases "Pubmed", "Medline", "Scopus", "Embase" and "WOS" and systematically reviewed the publications reporting quantitative data on the efficacy [sensitivity, specificity and/or area under the curve (AUC)] of circulating miRNAs as biomarkers of NSCLC stage I and/or II...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29211316/the-efficacy-of-prostate-specific-antigen-screening-impact-of-key-components-in-the-erspc-and-plco-trials
#8
Harry J de Koning, Roman Gulati, Sue M Moss, Jonas Hugosson, Paul F Pinsky, Christine D Berg, Anssi Auvinen, Gerald L Andriole, Monique J Roobol, E David Crawford, Vera Nelen, Maciej Kwiatkowski, Marco Zappa, Marcos Luján, Arnauld Villers, Tiago M de Carvalho, Eric J Feuer, Alex Tsodikov, Angela B Mariotto, Eveline A M Heijnsdijk, Ruth Etzioni
BACKGROUND: The European Randomized Study of Screening for Prostate Cancer (ERSPC) demonstrated that prostate-specific antigen (PSA) screening significantly reduced prostate cancer mortality (rate ratio, 0.79; 95% confidence interval, 0.69-0.91). The US Prostate, Lung, Colorectal, and Ovarian (PLCO) trial indicated no such reduction but had a wide 95% CI (rate ratio for prostate cancer mortality, 1.09; 95% CI, 0.87-1.36). Standard meta-analyses are unable to account for key differences between the trials that can impact the estimated effects of screening and the trials' point estimates...
December 6, 2017: Cancer
https://www.readbyqxmd.com/read/29210751/chronic-obstructive-pulmonary-disease-and-lung-cancer-inter-relationships
#9
Abhishek Biswas, Hiren J Mehta, Erik E Folch
PURPOSE OF REVIEW: Chronic obstructive pulmonary disease (COPD) is a well established risk factor for lung cancer. Newer studies reveal a myriad of other mechanisms, some proven and some putative, which may contribute to their association. RECENT FINDINGS: There is an ever-growing bundle of evidence that suggests a close association between persistent chronic inflammation and lung cancer. A few potential targets of genetic susceptibility locus for COPD and lung cancer have been suggested...
November 27, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29210523/activities-of-11-azaartemisinin-and-n-sulfonyl-derivatives-against-neospora-caninum-and-comparative-cytotoxicities
#10
Rozanne Harmse, Ho Ning Wong, Frans J Smit, Joachim Müller, Andrew Hemphill, David D N'Da, Richard K Haynes
Neosporosis caused by the apicomplexan parasite Neospora caninum is an economically important disease that induces abortion in dairy and beef cattle. There are no vaccines or drugs available on the market for control or treatment of the disease in bovines. The peroxide artemisinin and its derivatives used clinically for treatment of malaria are active against N. caninum and other apicomplexan parasites. We have now evaluated the activities of the readily accessible and chemically robust 11-azaartemisinin 5 and selected N-sulfonyl derivatives prepared as described in the accompanying paper against N...
December 6, 2017: ChemMedChem
https://www.readbyqxmd.com/read/29208441/european-position-statement-on-lung-cancer-screening
#11
REVIEW
Matthijs Oudkerk, Anand Devaraj, Rozemarijn Vliegenthart, Thomas Henzler, Helmut Prosch, Claus P Heussel, Gorka Bastarrika, Nicola Sverzellati, Mario Mascalchi, Stefan Delorme, David R Baldwin, Matthew E Callister, Nikolaus Becker, Marjolein A Heuvelmans, Witold Rzyman, Maurizio V Infante, Ugo Pastorino, Jesper H Pedersen, Eugenio Paci, Stephen W Duffy, Harry de Koning, John K Field
Lung cancer screening with low-dose CT can save lives. This European Union (EU) position statement presents the available evidence and the major issues that need to be addressed to ensure the successful implementation of low-dose CT lung cancer screening in Europe. This statement identified specific actions required by the European lung cancer screening community to adopt before the implementation of low-dose CT lung cancer screening. This position statement recommends the following actions: a risk stratification approach should be used for future lung cancer low-dose CT programmes; that individuals who enter screening programmes should be provided with information on the benefits and harms of screening, and smoking cessation should be offered to all current smokers; that management of detected solid nodules should use semi-automatically measured volume and volume-doubling time; that national quality assurance boards should be set up to oversee technical standards; that a lung nodule management pathway should be established and incorporated into clinical practice with a tailored screening approach; that non-calcified baseline lung nodules greater than 300 mm3, and new lung nodules greater than 200 mm3, should be managed in multidisciplinary teams according to this EU position statement recommendations to ensure that patients receive the most appropriate treatment; and planning for implementation of low-dose CT screening should start throughout Europe as soon as possible...
December 2017: Lancet Oncology
https://www.readbyqxmd.com/read/29207642/crosstalk-in-competing-endogenous-rna-network-reveals-the-complex-molecular-mechanism-underlying-lung-cancer
#12
Xiang Jin, Yinghui Guan, Hui Sheng, Yang Liu
We investigated the transcriptional mechanism underlying lung cancer development. RNA sequencing analysis was performed on blood samples from lung cancer cases and healthy controls. Differentially expressed microRNAs (miRNAs), circular RNAs (circRNAs), mRNAs (genes), and long non-coding RNAs (lncRNA) were identified, followed by pathway enrichment analysis. Based on miRNA target interactions, a competing endogenous network was established and significant nodes were screened. Differentially expressed transcriptional factors were retrieved from the TRRUST database and the transcriptional factor regulatory network was constructed...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29204733/comparative-nutritional-and-mycochemical-contents-biological-activities-and-lc-ms-screening-of-tuber-from-new-recipe-cultivation-technique-with-wild-type-tuber-of-tiger-s-milk-mushroom-of-species-lignosus-rhinocerus
#13
Nor Azreen Mohd Jamil, Noraswati Mohd Nor Rashid, Mohamad Hasril Abd Hamid, Norasfaliza Rahmad, Jameel R Al-Obaidi
Tiger's milk mushroom is known for its valuable medicinal properties, especially the tuber part. However, wild tuber is very hard to obtain as it grows underground. This study first aimed to cultivate tiger's milk mushroom tuber through a cultivation technique, and second to compare nutritional and mycochemical contents, antioxidant and cytotoxic activities and compound screening of the cultivated tuber with the wild tuber. Results showed an increase in carbohydrate content by 45.81% and protein content by 123...
December 4, 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/29204651/whole-exome-sequencing-in-adults-with-chronic-kidney-disease-a-pilot-study
#14
Sneh Lata, Maddalena Marasa, Yifu Li, David A Fasel, Emily Groopman, Vaidehi Jobanputra, Hila Rasouly, Adele Mitrotti, Rik Westland, Miguel Verbitsky, Jordan Nestor, Lindsey M Slater, Vivette D'Agati, Marcin Zaniew, Anna Materna-Kiryluk, Francesca Lugani, Gianluca Caridi, Luca Rampoldi, Aditya Mattoo, Chad A Newton, Maya K Rao, Jai Radhakrishnan, Wooin Ahn, Pietro A Canetta, Andrew S Bomback, Gerald B Appel, Corinne Antignac, Glen S Markowitz, Christine K Garcia, Krzysztof Kiryluk, Simone Sanna-Cherchi, Ali G Gharavi
Background: The utility of whole-exome sequencing (WES) for the diagnosis and management of adult-onset constitutional disorders has not been adequately studied. Genetic diagnostics may be advantageous in adults with chronic kidney disease (CKD), in whom the cause of kidney failure often remains unknown. Objective: To study the diagnostic utility of WES in a selected referral population of adults with CKD. Design: Observational cohort. Setting: A major academic medical center...
December 5, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/29201215/contrast-enhanced-computerized-tomography-combined-with-a-targeted-nanoparticle-contrast-agent-for-screening-for-early-phase-non-small-cell-lung-cancer
#15
Ninglu Yuan, Xiaohe Zhang, Yonghui Cao, Xiaojie Jiang, Si Zhao, Yingying Feng, Yimeng Fan, Zhitao Lu, Hongmei Gao
Non-small cell lung cancer (NSCLC) is a major cause of morbidity and mortality, and patients with NSCLC are frequently diagnosed at an advanced stage. This is primarily due to a lack of advanced and sensitive protocols for the detection of early stage NSCLC. Therefore, methods for the accurate diagnosis of early stage NSCLC are urgently required to improve survival rates. The present study investigated the use of contrast-enhanced computerized tomography (CECT) combined with a targeted nanoparticle contrast agent (TNCA) to diagnose early-stage NSCLC in a mice xenograft model...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29200968/volatile-organic-metabolites-identify-patients-with-gastric-carcinoma-gastric-ulcer-or-gastritis-and-control-patients
#16
Hongshuang Tong, Yue Wang, Yue Li, Shujuan Liu, Chunjie Chi, Desheng Liu, Lei Guo, Enyou Li, Changsong Wang
Background: Gastric cancer ranks 4th among the most common cancers worldwide, and the mortality caused by gastric cancer is 2nd only to lung cancer. Gastric cancer shows a lack of specific symptoms in its early stages. In addition, its clinical symptoms often do not match the corresponding stage. Upper gastrointestinal endoscopy with biopsy is the gold standard for the diagnosis of gastric cancer because of its high accuracy. However, this operation is invasive, patient compliance is poor, and high demands for medical staff and equipment are typical of this procedure...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29200719/anti-cancer-effects-of-polyphenolic-compounds-in-epidermal-growth-factor-receptor-tyrosine-kinase-inhibitor-resistant-non-small-cell-lung-cancer
#17
Hyungmin Jeong, Ai N H Phan, Jong-Whan Choi
Background: Polyphenolic phytochemicals are natural compounds, easily found in fruits and vegetables. Importantly, polyphenols have been intensively studied as excellent antioxidant activity which contributes to anticancer function of the natural compounds. Lung cancer has been reported to mainly account for cancer-related deaths in the world. Moreover, epidermal growth factor receptor tyrosine kinase inhibitor (TKI) resistance is one of the biggest issues in cancer treatment, especially in nonsmall cell lung cancer (NSCLC)...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29200686/an-investigation-of-bayes-algorithm-and-neural-networks-for-identifying-the-breast-cancer
#18
E Udayakumar, S Santhi, P Vetrivelan
Context: Breast cancer is a biggest threat to women. X-ray mammography is the most effective method for early detection and screening of breast cancer. It is a tough challenge for the radiologist in reading mammography since it does not provide consistent result every time. Aim: To improve the primary sign of this disease, computer-aided diagnosis schemes have been developed. Using monitor, digital images of mammography are displayed and they can be lightened or darkened before they are printed on the film...
July 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29198084/-the-impact-of-molecular-profiling-using-next-generation-sequencing-in-advanced-lung-cancer
#19
Anna Belilovski Rozenblum, Maya Ilouze, Elizabeth Dudnik, Lior Soussan-Gutman, Addie Dvir, Nir Peled
BACKGROUND: In the last decade, important advances in understanding the lung cancer cellular signal pathways have led to the designing of targeted drugs that significantly prolong survival. Recent data shows that 64% of lung adenocarcinomas harbor at least one activating driver mutation, including treatable mutations such as RET, ERBB2 (HER-2) and ROS1 gene mutations, besides the regularly screened ALK and EGFR genes. Next-Generation Sequencing (NGS) reveals more clinically meaningful genomic alterations as compared to currently used diagnostic tests...
November 2017: Harefuah
https://www.readbyqxmd.com/read/29197734/regio-and-stereoselective-synthesis-of-dispirooxindole-pyrrolocarbazole-hybrids-via-1-3-dipolar-cycloaddition-reactions-cytotoxic-activity-and-sar-studies
#20
Karunanidhi Murali, Hazel A Sparkes, Karnam Jayarampillai Rajendra Prasad
A library of novel dispiro compounds containing oxindole-pyrrolo-carbazole hybrid frame works has been synthesized in a fully regio- and stereoselective fashion by the three-component 1,3-dipolar cycloaddition of azomethineylides generated in situ from the condensation of isatins and benzylamine with 2-arylidene/heteroarylidene-2,3,4,9-tetrahydro-1H-carbazole-1-one. The structures of the compounds were established by FT-IR, 1H NMR, 13C NMR, X-ray diffraction and elemental analysis. The synthesized dispiro heterocycles have been screened for in vitro cytotoxic activity by MTT assay and displayed enviable growth inhibition on both the cancer cell lines i...
November 20, 2017: European Journal of Medicinal Chemistry
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