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https://www.readbyqxmd.com/read/28812395/current-research-on-circular-rnas-associated-with-colorectal-cancer
#1
Penghui Wang, Xiaodong He
Representing a novel type of endogenous noncoding RNAs, circular RNAs (circRNAs) have recently gained much attention for their involvement in multiple biological processes. CircRNAs are ubiquitously expressed in eukaryotic cells and modulate gene expression by acting as sponges of microRNAs (miRNAs) or other proteins, such as RNA-binding proteins (RBPs). Due to their unique structure, circRNAs are more stable than linear RNAs. Expression profiles of circRNAs are associated with clinicopathological characteristics of colorectal cancer patients, such as differentiation, TNM classification and distant metastasis...
August 16, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28812223/prognostic-potential-of-klotho-and-sfrp1-promoter-methylation-in-head-and-neck-squamous-cell-carcinoma
#2
Abeer A Alsofyani, Rawiah A Alsiary, Alaa Samkari, Baraa T Alhaj-Hussain, Jalaluddin Azam Khan, Jaudah Al-Maghrabi, Aisha Elaimi, Mohammed H Al-Qahtani, Adel M Abuzenadah, Ashraf Dallol
Hypermethylation in the CpG island promoter regions of tumor suppressors is known to play a significant role in the development of HNSCC and the detection of which can aid the classification and prognosis of HNSCC. This study aims to profile the methylation patterns in a panel of key genes including CDKN2A, CDKN2B, KLOTHO (KL), RASSF1A, RARB, SLIT2, and SFRP1, in a group of HNSCC samples from Saudi Arabia. The extent of methylation in these genes is determined using the MethyLight assay and correlated with known clinicopathological parameters in our samples of 156 formalin-fixed and paraffin-embedded HNSCC tissues...
August 16, 2017: Journal of Applied Genetics
https://www.readbyqxmd.com/read/28812148/local-recurrence-of-squamous-cell-carcinoma-of-the-head-and-neck-after-radio-chemo-therapy-diagnostic-performance-of-fdg-pet-mri-with-diffusion-weighted-sequences
#3
Minerva Becker, Arthur D Varoquaux, Christophe Combescure, Olivier Rager, Marc Pusztaszeri, Karim Burkhardt, Bénédicte M A Delattre, Pavel Dulguerov, Nicolas Dulguerov, Eirini Katirtzidou, Francesca Caparrotti, Osman Ratib, Habib Zaidi, Christoph D Becker
PURPOSE: To determine the diagnostic performance of FDG-PET/MRI with diffusion-weighted imaging (FDG-PET/DWIMRI) for detection and local staging of head and neck squamous cell carcinoma (HNSCC) after radio(chemo)therapy. MATERIALS AND METHODS: This was a prospective study that included 74 consecutive patients with previous radio(chemo)therapy for HNSCC and in whom tumour recurrence or radiation-induced complications were suspected clinically. The patients underwent hybrid PET/MRI examinations with morphological MRI, DWI and FDG-PET...
August 15, 2017: European Radiology
https://www.readbyqxmd.com/read/28811082/correlation-between-molecular-analysis-diagnosis-according-to-the-2015-who-classification-of-unresected-lung-tumours-and-ttf1-expression-in-small-biopsies-and-cytology-specimens-from-344-non-small-cell-lung-carcinoma-patients
#4
Prudence A Russell, Toni-Maree Rogers, Benjamin Solomon, Naveed Alam, Stephen A Barnett, Vivek Rathi, Richard A Williams, Gavin M Wright, Matthew Conron
We investigated correlations between diagnosis according to the 2015 World Health Organization (WHO) classification of unresected lung tumours, molecular analysis and TTF1 expression in small biopsy and cytology specimens from 344 non-small cell lung carcinoma (NSCLC) patients. One case failed testing for EGFR, KRAS and ALK abnormalities and six had insufficient tumour for ALK testing. Overall mutation rate in 343 cases was 48% for the genes tested, with 19% EGFR, 33% KRAS and 4% BRAF mutations, and 5% ALK rearrangements detected...
August 12, 2017: Pathology
https://www.readbyqxmd.com/read/28810909/a-multi-center-randomized-controlled-open-label-trial-evaluating-the-effects-of-eosinophil-guided-corticosteroid-sparing-therapy-in-hospitalised-patients-with-copd-exacerbations-the-cortico-steroid-reduction-in-copd-cortico-cop-study-protocol
#5
Pradeesh Sivapalan, Mia Moberg, Josefin Eklöf, Julie Janner, Jørgen Vestbo, Rasmus Rude Laub, Andrea Browatzki, Karin Armbruster, Jon Torgny Wilcke, Niels Seersholm, Ulla Møller Weinreich, Ingrid Louise Titlestad, Helle Frost Andreassen, Charlotte Suppli Ulrik, Uffe Bødtger, Thyge Lynghøj Nielsen, Ejvind Frausing Hansen, Jens Ulrik Stæhr Jensen
BACKGROUND: The most commonly applied treatment for acute exacerbations of chronic obstructive pulmonary disease (AECOPD) is a 5-day course of high-dose systemic corticosteroids. However, this treatment has not been shown to reduce mortality and can potentially have serious side effects. Recent research has shown that, presumably, only a subgroup of COPD patients identifieable by blood eosinophil count benefit from a rescue course of prednisolone. By applying a biomarker-guided strategy, the aim of this study is to determine whether it is possible to reduce the use of systemic corticosteroids in AECOPD without influencing the outcome...
August 15, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28810294/-morphologic-features-of-fallopian-tubal-epithelium-in-pelvic-high-grade-serous-carcinoma
#6
R J Zhao, Y Y Wang, Z Li, K Y Wu, L F Kong, W X Zheng
Objective: To study the pathologic features of fallopian tubal epithelium in patients with pelvic high-grade serous carcinoma (HGSC), to investigate its role in pelvic serous carcinogenesis and to reclassify the primary site of HGSC based on recently proposed criteria. Methods: The fallopian tubes in 58 cases of pelvic HGSC (54 cases of ovarian primary, 3 cases of tubal primary, 1 case of peritoneum) and 25 cases of pelvic non-HGSC (5 cases of ovarian low-grade serous cancer, 9 cases of endometrioid cancer, and 11 cases of clear cell ovary carcinoma) were collected from June 2015 to December 2016, and serially examined under light microscope (SEE-FIM protocol)...
August 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28809630/aplikace-plazmy-obohacen%C3%A3-o-trombocyty-a-leukocyty-k-later%C3%A3-ln%C3%A3-mu-epikondylu-humeru
#7
P Walder, L Paša, L Pavliska
PURPOSE OF THE STUDY The aim of the study was to evaluate the safety and efficacy of the application of platelet- and leukocyte-rich plasma (L-PRP) in the treatment of lateral humeral epicondyle (ERH) as compared to the administration of corticosteroid therapy. MATERIAL AND METHODS It was a prospective, double-blind and randomized clinical trial. It included a total of 25 cases of ERH in 23 patients aged 18 to 60 years. They were divided into two arms: L-PRP arm with 10 cases and corticosteroid arm with 15 cases...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28808428/a-comparison-of-concurrent-cisplatin-versus-cetuximab-with-radiotherapy-in-locally-advanced-head-and-neck-cancer-a-bi-institutional-analysis
#8
William A Stokes, Whitney A Sumner, Kiersten L Breggren, John T Rathbun, David Raben, Jessica D McDermott, Gregory Gan, Sana D Karam
AIM: To present our experience comparing cisplatin- and cetuximab-based radiotherapy for locally-advanced head and neck squamous cell carcinoma. BACKGROUND: The comparative effectiveness of cisplatin-based chemoradiotherapy (CRT) versus cetuximab-based bioradiotherapy (BRT) for locally-advanced head and neck squamous cell carcinoma (LAHNSCC) continues to be explored. MATERIALS AND METHODS: Outcomes of LAHNSCC patients treated with CRT (125) or BRT (34) at two institutions were compared retrospectively, with attention to overall survival (OS), cancer-specific survival (CSS), locoregional control (LRC), and distant control (DC)...
September 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28807339/primary-collision-tumors-of-the-kidney-composed-of-oncocytoma-and-papillary-renal-cell-carcinoma-a-review
#9
REVIEW
Zulfia McCroskey, Sue J Sim, Andrew A Selzman, Alberto G Ayala, Jae Y Ro
BACKGROUND: There are well known cases of hybrid tumors of chromophobe renal cell carcinoma (RCC) and oncocytoma in kidney, where both tumors have the same cell of origin - intercalated cell of the collecting duct. However, collision tumors composed of neoplasms originating from different cell lineages such as oncocytoma and papillary RCC are extremely rare. Herein, we made a collective literature review of reported cases of collision tumors composed of oncocytoma and papillary RCC, adding a case that we recently experienced...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28807335/recent-updates-on-grading-and-classification-of-neuroendocrine-tumors
#10
REVIEW
Joo Young Kim, Seung-Mo Hong, Jae Y Ro
Neuroendocrine tumors (NETs) are originating from neuroendocrine cells in diffuse endocrine systems. NETs are diagnosed by characteristic histologic features and immunoprofiles. Recent 2010 WHO classification for gastroenteropancreatic NETs introduced grading system based on mitotic count and Ki-67 proliferation index. Gastroenteropancreatic NETs are classified as NET grade 1, NET grade 2, and neuroendocrine carcinoma (NET grade 3). However, the carcinoid is still used in classification of NETs of the lung and uterine cervix...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28807232/ovarian-cancer-novel-molecular-aspects-for-clinical-assessment
#11
REVIEW
Raffaele Palmirotta, Erica Silvestris, Stella D'Oronzo, Angela Cardascia, Franco Silvestris
Ovarian cancer is a very heterogeneous tumor which has been traditionally characterized according to the different histological subtypes and differentiation degree. In recent years, innovative molecular screening biotechnologies have allowed to identify further subtypes of this cancer based on gene expression profiles, mutational features, and epigenetic factors. These novel classification systems emphasizing the molecular signatures within the broad spectrum of ovarian cancer have not only allowed a more precise prognostic prediction, but also proper therapeutic strategies for specific subgroups of patients...
September 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28806822/-multiple-myeloma-current-status-in-diagnostic-testing-and-therapy
#12
Michael Kehrer, Sebastian Koob, Andreas Strauss, Dieter Christian Wirtz, Jan Schmolders
Background Multiple myeloma is a haematological blood cancer of the bone marrow and is classified by the World Health Organisation (WHO) as a plasma cell neoplasm. In multiple myeloma, normal plasma cells transform into malignant myeloma cells and produce large quantities of an abnormal immunoglobulin called monoclonal protein or M protein. This ultimately causes multiple myeloma symptoms such as bone damage or kidney problems. The annual worldwide incidence of multiple myeloma is estimated to be 6 - 7/100,000 and accounts for 1% of all cancer...
August 14, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28805002/stratification-of-astrocytes-in-healthy-and-diseased-brain
#13
Alexei Verkhratsky, Robert Zorec, Vladimir Parpura
Astrocytes, a subtype of glial cells, come in variety of forms and functions. However, overarching role of these cell is in the homeostasis of the brain, be that regulation of ions, neurotransmitters, metabolism or neuronal synaptic networks. Loss of homeostasis represents the underlying cause of all brain disorders. Thus, astrocytes are likely involved in most if not all of the brain pathologies. We tabulate astroglial homeostatic functions along with pathological condition that arise from dysfunction of these glial cells...
September 2017: Brain Pathology
https://www.readbyqxmd.com/read/28804688/pivotal-regulators-of-tissue-homeostasis-and-cancer-macrophages
#14
REVIEW
Yulei Chen, Xiaobo Zhang
Macrophages are an essential component of innate immunity and play a vital role in inflammation and host defense. Based on immunological responses, the macrophages are classified into "activated" macrophage (M1 macrophages) participating in the responses of type I helper T (Th1) cells to pathogens and "alternatively activated" macrophages (M2 macrophages) in response to interleukin (IL)-4 and IL-13. In this review, we discuss the origin, classification and function of macrophages. We also discuss the mechanisms underlying polarization of different macrophage subtypes, including transcriptional, epigenetic and post-transcriptional regulation...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28802838/identification-of-immune-correlates-of-protection-in-shigella-infection-by-application-of-machine-learning
#15
Jorge M Arevalillo, Marcelo B Sztein, Karen L Kotloff, Myron M Levine, Jakub K Simon
BACKGROUND: Immunologic correlates of protection are important in vaccine development because they give insight into mechanisms of protection, assist in the identification of promising vaccine candidates, and serve as endpoints in bridging clinical vaccine studies. Our goal is the development of a methodology to identify immunologic correlates of protection using the Shigella challenge as a model. METHODS: The proposed methodology utilizes the Random Forests (RF) machine learning algorithm as well as Classification and Regression Trees (CART) to detect immune markers that predict protection, identify interactions between variables, and define optimal cutoffs...
August 9, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28802501/myeloid-neoplasms
#16
REVIEW
Antonio Subtil
The classification of myeloid neoplasms has undergone major changes and currently relies heavily on genetic abnormalities. Cutaneous manifestations of myeloid neoplasms may be the presenting sign of underlying bone marrow disease. Dermal infiltration by neoplastic cells may occur in otherwise normal skin or in sites of cutaneous inflammation. Leukemia cutis occasionally precedes evidence of blood and/or bone marrow involvement (aleukemic leukemia cutis).
September 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/28801374/myeloid-sarcoma-in-a-patient-with-myelodysplastic-syndrome-associated-with-del-5q-case-report-and-literature-review
#17
Josh A Showalter, Nidhi Tandon, Bihong Zhao, Guilin Tang, Nghia D Nguyen, L Jeffrey Medeiros
OBJECTIVE: Myeloid sarcoma (MS) is defined in the World Health Organization classification as a tumor mass consisting of myeloblasts with or without maturation and involving any anatomic site other than the bone marrow. We present a case of MS developing in a patient with 5q- myelodysplastic syndrome (MDS) and review the relevant literature. METHODS: A 77-year-old woman with recent diagnosis of MDS associated with del(5q) presented with symptoms and signs attributable to a mass involving the T8 vertebra...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28800727/a-phased-snp-based-classification-of-sickle-cell-anemia-hbb-haplotypes
#18
Elmutaz M Shaikho, John J Farrell, Abdulrahman Alsultan, Hatem Qutub, Amein K Al-Ali, Maria Stella Figueiredo, David H K Chui, Lindsay A Farrer, George J Murphy, Gustavo Mostoslavsky, Paola Sebastiani, Martin H Steinberg
BACKGROUND: Sickle cell anemia causes severe complications and premature death. Five common β-globin gene cluster haplotypes are each associated with characteristic fetal hemoglobin (HbF) levels. As HbF is the major modulator of disease severity, classifying patients according to haplotype is useful. The first method of haplotype classification used restriction fragment length polymorphisms (RFLPs) to detect single nucleotide polymorphisms (SNPs) in the β-globin gene cluster. This is labor intensive, and error prone...
August 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28800344/automatic-computer-aided-analysis-algorithms-and-system-for-adrenal-tumors-on-ct-images
#19
Hanchao Chai, Yi Guo, Yuanyuan Wang, Guohui Zhou
BACKGROUND: The adrenal tumor will disturb the secreting function of adrenocortical cells, leading to many diseases. Different kinds of adrenal tumors require different therapeutic schedules. OBJECTIVE: In the practical diagnosis, it highly relies on the doctor's experience to judge the tumor type by reading the hundreds of CT images. METHODS: This paper proposed an automatic computer aided analysis method for adrenal tumors detection and classification...
August 4, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28800310/nephroblastoma-overexpressed-gene-expression-and-its-prognostic-implications-of-clinical-outcomes-in-renal-cell-carcinoma-patients
#20
Hongbin Shi, Jianping Yu, Jie Li
BACKGROUND: The nephroblastoma overexpressed gene (NOV) expressions in tissues and organs has become abnormal during tumorigenesis and progression. This study intended to investigate the correlation between clinical outcomes and NOV expression in renal cell carcinoma (RCC) patients. METHODS: Fifty RCC patients who attended the hospital from January 2013 to January 2015 were enrolled in this study. NOV expression in cancerous tissues and adjacent non-cancerous renal tissues of RCC patients were detected by immunohistochemistry (IHC)...
July 31, 2017: Cancer Biomarkers: Section A of Disease Markers
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