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https://www.readbyqxmd.com/read/28340268/is-differential-expression-of-p16ink4a-based-on-the-classification-of-uterine-smooth-muscle-tumors-associated-with-a-different-prognosis-a-meta-analysis
#1
H Y Cao, S Yang, S Wang, L Y Deng, J Y Lou
We conducted a meta-analysis to examine p16INK4a expression in uterine smooth muscle tumors (USMTs). Although the prognostic value of tumor suppressor p16INK4a has been elucidated in a variety of cancers and precancerous lesions, its role in USMTs is not well established. We searched PubMed, Web of Science, and Embase for publication son p16INK4a expression in USMTs. Strict inclusion and exclusion criteria were imposed. Risk ratios (RRs) with 95% confidence intervals (95%CIs) were calculated to assess the strength of association...
March 22, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28339690/automated-classification-of-eligibility-criteria-in-clinical-trials-to-facilitate-patient-trial-matching-for-specific-patient-populations
#2
Kevin Zhang, Dina Demner-Fushman
Objective: To develop automated classification methods for eligibility criteria in ClinicalTrials.gov to facilitate patient-trial matching for specific populations such as persons living with HIV or pregnant women. Materials and Methods: We annotated 891 interventional cancer trials from ClinicalTrials.gov based on their eligibility for human immunodeficiency virus (HIV)-positive patients using their eligibility criteria. These annotations were used to develop classifiers based on regular expressions and machine learning (ML)...
February 19, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28339459/functional-classification-of-dna-variants-by-hybrid-minigenes-identification-of-30-spliceogenic-variants-of-brca2-exons-17-and-18
#3
Eugenia Fraile-Bethencourt, Beatriz Díez-Gómez, Valeria Velásquez-Zapata, Alberto Acedo, David J Sanz, Eladio A Velasco
Mutation screening of the breast cancer genes BRCA1 and BRCA2 identifies a large fraction of variants of uncertain clinical significance (VUS) whose functional and clinical interpretations pose a challenge for genomic medicine. Likewise, an increasing amount of evidence indicates that genetic variants can have deleterious effects on pre-mRNA splicing. Our goal was to investigate the impact on splicing of a set of reported variants of BRCA2 exons 17 and 18 to assess their role in hereditary breast cancer and to identify critical regulatory elements that may constitute hotspots for spliceogenic variants...
March 24, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28335504/diagnosis-of-breast-cancer-tissues-using-785-nm-miniature-raman-spectrometer-and-pattern-regression
#4
Qingbo Li, Can Hao, Zhi Xu
For achieving the development of a portable, low-cost and in vivo cancer diagnosis instrument, a laser 785 nm miniature Raman spectrometer was used to acquire the Raman spectra for breast cancer detection in this paper. However, because of the low spectral signal-to-noise ratio, it is difficult to achieve high discrimination accuracy by using the miniature Raman spectrometer. Therefore, a pattern recognition method of the adaptive net analyte signal (NAS) weight k-local hyperplane (ANWKH) is proposed to increase the classification accuracy...
March 19, 2017: Sensors
https://www.readbyqxmd.com/read/28335082/reporting-of-mitotic-rate-in-cutaneous-melanoma-a-study-using-the-national-cancer-data-base
#5
Patrick D Lorimer, Emily C Benham, Kendall Walsh, Yimei Han, Meghan R Forster, Terry Sarantou, Richard L White, Joshua S Hill
BACKGROUND: The seventh edition of the American Joint Commission on Cancer staging manual (AJCC7, published 2009), updated thin cutaneous melanoma staging protocols with the incorporation of mitotic rate (MR). In these patients, higher MR is associated with decreased survival. This study utilizes the National Cancer Data Base (NCDB) to evaluate MR reporting since AJCC7. METHODS: The NCDB was queried for patients with primary cutaneous melanoma from 1998 to 2013...
March 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28334942/epidemiological-analysis-of-childhood-cancer-in-japan-based-on-population-based-cancer-registries-1993-2009
#6
Hiroyuki Ishihara, Yuko Ohno, Makoto Fujii, Junichi Hara, Midori Soda
Background: There are few recent data on trends in childhood cancer incidence using population-based cancer registries in Japan. Methods: This study comprised 6110 reported cases of patients aged 0-14 years who were diagnosed as having primary cancer between 1993 and 2009. We chose cancer registries of seven prefectures, according to the international cancer registry standard of fewer than 10% death certificate only cases among cancer registries in Japan. We analyzed population-based cancer registration data in the seven prefectures between 1993 and 2009...
March 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28334622/improving-survival-prognostication-of-gastroenteropancreatic-neuroendocrine-neoplasms-revised-staging-criteria
#7
Jacob A Martin, Richard R P Warner, Juan P Wisnivesky, Michelle Kang Kim
PURPOSE: Current staging criteria for gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs), while useful, have limitations. In this study, we used a population-based registry to evaluate the prognostic utility of the current staging systems and assess whether evidence-based modifications can improve survival predictions. METHODS: We identified patients with confirmed GEP-NENs from the Surveillance, Epidemiology and End Results registry. We assigned tumour-node-metastasis status according to American Joint Committee on Cancer and European Neuroendocrine Tumor Society criteria...
March 20, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28334584/delayed-workup-of-rectal-bleeding-in-adult-primary-care-examining-process-of-care-failures
#8
Saul N Weingart, Elena M Stoffel, Daniel C Chung, Thomas D Sequist, Ruth I Lederman, Stephen R Pelletier, Helen M Shields
BACKGROUND: Although delayed colorectal cancer diagnoses figure prominently in medical malpractice claims, little is known about the quality of primary care clinicians' workup of rectal bleeding. METHODS: In this study, 438 patients were identified using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes for rectal bleeding, hemorrhoids, and blood in the stool at 10 Boston adult primary care practices. Following nurse chart abstraction, physician reviewers assessed the overall quality of care and key care processes...
January 2017: Joint Commission Journal on Quality and Patient Safety
https://www.readbyqxmd.com/read/28333258/anal-neoplasia-in-inflammatory-bowel-disease-classification-proposal-epidemiology-carcinogenesis-and-risk-management-perspectives
#9
Andrew Wisniewski, Jean-Francois Fléjou, Laurent Siproudhis, Laurent Abramowitz, Magali Svrcek, Laurent Beaugerie
Patients with inflammatory bowel disease (IBD) may develop, similarly to individuals from general population, rare cases of HPV-related anal canal squamous cell carcinoma (SCC) and their intra-epithelial precursor lesions, as well as very rare cases of anal canal adenocarcinoma. Patients with chronic perianal Crohn's disease (CD) are at substantial risk of developing SCC or adenocarcinoma from the fistula-lining epithelium, as well as SCC or adenocarcinoma arising from chronic anorectal ulcerations or strictures...
March 10, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28332199/investigating-the-feasibility-of-classifying-breast-microcalcifications-using-photon-counting-spectral-mammography-a-simulation-study
#10
Bahaa Ghammraoui, Stephen J Glick
PURPOSE: A dual-energy material decomposition method using photon-counting spectral mammography was investigated as a non-invasive diagnostic approach to differentiate between Type I calcifications, consisting of calcium oxalate dihydrate or weddellite compounds that are more often associated with benign lesions, and Type II calcifications containing hydroxyapatite that are predominantly associated with malignant tumors. METHODS: The study was carried out by numerical simulation to assess the feasibility of the proposed approach...
March 22, 2017: Medical Physics
https://www.readbyqxmd.com/read/28331884/accuracy-assessment-and-characterization-of-x-ray-coded-aperture-coherent-scatter-spectral-imaging-for-breast-cancer-classification
#11
Manu N Lakshmanan, Joel A Greenberg, Ehsan Samei, Anuj J Kapadia
Although transmission-based x-ray imaging is the most commonly used imaging approach for breast cancer detection, it exhibits false negative rates higher than 15%. To improve cancer detection accuracy, x-ray coherent scatter computed tomography (CSCT) has been explored to potentially detect cancer with greater consistency. However, the 10-min scan duration of CSCT limits its possible clinical applications. The coded aperture coherent scatter spectral imaging (CACSSI) technique has been shown to reduce scan time through enabling single-angle imaging while providing high detection accuracy...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28331824/volume-versus-diameter-assessment-of-small-pulmonary-nodules-in-ct-lung-cancer-screening
#12
REVIEW
Daiwei Han, Marjolein A Heuvelmans, Matthijs Oudkerk
Currently, lung cancer screening by low-dose chest CT is implemented in the United States for high-risk persons. A disadvantage of lung cancer screening is the large number of small-to-intermediate sized lung nodules, detected in around 50% of all participants, the large majority being benign. Accurate estimation of nodule size and growth is essential in the classification of lung nodules. Currently, manual diameter measurements are the standard for lung cancer screening programs and routine clinical care. However, European screening studies using semi-automated volume measurements have shown higher accuracy and reproducibility compared to diameter measurements...
February 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28331793/texture-analysis-of-abnormal-cell-images-for-predicting-the-continuum-of-colorectal-cancer
#13
Ahmad Chaddad, Camel Tanougast
Abnormal cell (ABC) is a markedly heterogeneous tissue area and can be categorized into three main types: benign hyperplasia (BH), carcinoma (Ca), and intraepithelial neoplasia (IN) or precursor cancerous lesion. In this study, the goal is to determine and characterize the continuum of colorectal cancer by using a 3D-texture approach. ABC was segmented in preprocessing step using an active contour segmentation technique. Cell types were analyzed based on textural features extracted from the gray level cooccurrence matrices (GLCMs)...
2017: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/28328000/cdx2-prognostic-value-in-stage-ii-iii-resected-colon-cancer-is-related-to-cms-classification
#14
C Pilati, J Taieb, R Balogoun, L Marisa, A de Reyniès, P Laurent-Puig
Caudal-type homeobox transcription factor 2 (CDX2) is involved in colon cancer (CC) oncogenesis and has been proposed as a prognostic biomarker in patients with stage II or III CC. We analyzed CDX2 expression in a series of 469 CC typed for the new international consensus molecular subtype (CMS) classification, and we confirmed results in a series of 90 CC. Here, we show that lack of CDX2 expression is only present in the mesenchymal subgroup (CMS4) and in MSI-immune tumors (CMS1) and not in CMS2 and CMS3 colon cancer...
February 27, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28327973/modeling-individual-and-relative-accuracy-of-screening-tools-in-geriatric-oncology
#15
C A Bellera, F Artaud, M Rainfray, P L Soubeyran, S Mathoulin-Pélissier
Background: Classification probabilities reflect to what degree a screening test represents the true disease state and include true positive (TPF) and false positive fractions (FPF). With two tests, one can compare TPF and FPF using relative probabilities which offer advantages in terms of interpretation and statistical modeling. Our objective was to highlight how individual and relative TPF and FPF can be easily estimated and compared within a regression modeling framework. This allows the modeling of tests' accuracy while adjusting for multiple covariates, and thus provides valuable information in addition to the crude TPF and FPF...
February 21, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28327938/targeting-the-fibroblast-growth-factor-receptor-2-in-gastric-cancer-promise-or-pitfall
#16
C Hierro, M Alsina, M Sánchez, V Serra, J Rodon, J Tabernero
Gastric cancer is the third leading cause of death from cancer worldwide. Systemic chemotherapy remains the mainstay therapeutic option for this poor prognosis cancer. Trastuzumab, the epidermal growth factor receptor 2 (ERBB2 or HER2)-antibody, is the only biological agent approved for the molecularly-selected population of HER2-positive gastric cancer patients. Over the last decade, several groups have been working for deepening into the molecular characterization of gastric cancer, shedding some light into the heterogeneity of this tumour...
March 7, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28327459/preoperative-t-staging-of-potentially-resectable-esophageal-cancer-a-comparison-between-free-breathing-radial-vibe-and-breath-hold-cartesian-vibe-with-histopathological-correlation
#17
Fengguang Zhang, Jinrong Qu, Hongkai Zhang, Hui Liu, Jianjun Qin, Zhidan Ding, Yin Li, Jie Ma, Zhongxian Zhang, Zhaoqi Wang, Jianwei Zhang, Shouning Zhang, Yafeng Dong, Robert Grimm, Ihab R Kamel, Hailiang Li
PURPOSE: To compare the T staging of potentially resectable esophageal cancer using free-breathing radial VIBE (r-VIBE) and breath-hold Cartesian VIBE (C-VIBE), with pathologic confirmation of the T stage. MATERIALS AND METHODS: Fifty patients with endoscopically proven esophageal cancer and indeterminate T1/T2/T3 stage by CT scan were examined on a 3-T scanner. The MRI protocol included C-VIBE at 150 seconds post-IV contrast, immediately followed by a work-in-progress r-VIBE with identical spatial resolution (1...
March 16, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28327158/the-clinicopathological-parameters-and-prognostic-significance-of-her2-expression-in-gastric-cancer-patients-a-meta-analysis-of-literature
#18
REVIEW
Yu-Ying Lei, Jin-Yu Huang, Qiong-Rui Zhao, Nan Jiang, Hui-Mian Xu, Zhen-Ning Wang, Hai-Qing Li, Shi-Bo Zhang, Zhe Sun
BACKGROUND: Human epidermal growth factor receptor-2 (HER2) is regarded as an important and promising target in the treatment of HER2-positive breast cancers. However, the correlation of clinicopathological characteristics and prognostic significance of HER2 overexpression in gastric cancer patients remains unclear. Our aim was to clarify this issue. METHODS: Embase, PubMed, and the Cochrane Library were searched for relevant articles published up to May 2016. Outcomes of interest contained sex, age, tumor size, tumor site, tumor node metastasis (TNM) stage, distant metastasis, lymph node metastasis, Lauren's classification, differentiation grade, lymphovascular invasion, neural invasion, and multivariate analysis data for overall survival...
March 21, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28326656/skin-cancer-diagnosed-by-using-artificial-intelligence-on-clinical-images
#19
Isaäc van der Waal
In a recent Research Letter in Nature an automated classification of a few selected skin lesions has been published, using a deep convolutional neural network (CNN) (Esteva et al, 2017). Convolutional neural network is an important innovation in the field of computer vision. A popular use is for image processing, e.g. applied in face recognition. In the reported study CNN has been applied to a dataset of almost 130,000 clinical images, including some 3,000 dermoscopic images. This article is protected by copyright...
March 22, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28325607/japanese-clinical-practice-guideline-for-head-and-neck-cancer
#20
REVIEW
Ken-Ichi Nibu, Ryuichi Hayashi, Takahiro Asakage, Hiroya Ojiri, Yoshihiro Kimata, Takeshi Kodaira, Toshitaka Nagao, Torahiko Nakashima, Takashi Fujii, Hirofumi Fujii, Akihiro Homma, Kazuto Matsuura, Nobuya Monden, Takeshi Beppu, Nobuhiro Hanai, Tadaaki Kirita, Yuzuru Kamei, Naoki Otsuki, Naomi Kiyota, Sadamoto Zenda, Ken Omura, Koichi Omori, Tetsuo Akimoto, Kazuyoshi Kawabata, Seiji Kishimoto, Hiroya Kitano, Iwai Tohnai, Takashi Nakatsuka
OBJECTIVE: The first revision of "Japanese Clinical Practice Guideline for Head and Neck Cancer" was made in 2013 by the clinical practice guideline committee of Japan Society for Head and Neck Cancer, in response to the revision of the TNM classification. METHODS: 34 CQs (Clinical Questions) were newly adopted to describe the diagnosis and treatment methods currently considered most appropriate, and offered recommendation grade made by the consensus of the committee...
March 18, 2017: Auris, Nasus, Larynx
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