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https://www.readbyqxmd.com/read/28430133/nuclear-molecular-imaging-strategies-in-immune-checkpoint-inhibitor-therapy
#1
REVIEW
Kasper F Guldbrandsen, Helle W Hendel, Seppo W Langer, Barbara M Fischer
Immune checkpoint inhibitor therapy (ICT) is a new treatment strategy developed for the treatment of cancer. ICT inhibits pathways known to downregulate the innate immune response to cancer cells. These drugs have been shown to be effective in the treatment of a variety of cancers, including metastatic melanoma and lung cancer. Challenges in response evaluation of patients in ICT have risen as immune related side effects and immune cell infiltration may be confused with progressive disease. Furthermore, the timing of the evaluation scan may be challenged by relatively slow responses...
April 21, 2017: Diagnostics
https://www.readbyqxmd.com/read/28406427/ten-important-considerations-for-ovarian-cancer-screening
#2
REVIEW
Edward J Pavlik
The unique intricacies of ovarian cancer screening and perspectives of different screening methods are presented as ten considerations that are examined. Included in these considerations are: (1) Deciding on the number of individuals to be screened; (2) Anticipating screening group reductions due to death; (3) Deciding on the duration and frequency of screening; (4) Deciding on an appropriate follow-up period after screening; (5) Deciding on time to surgery when malignancy is suspected; (6) Deciding on how screen-detected ovarian cancers are treated and by whom; (7) Deciding on how to treat the data of enrolled participants; (8) Deciding on the most appropriate way to assign disease-specific death; (9) Deciding how to avoid biases caused by enrollments that attract participants with late-stage disease who are either symptomatic or disposed by factors that are genetic, environmental or social; and (10) Deciding whether the screening tool or a screening process is being tested...
April 13, 2017: Diagnostics
https://www.readbyqxmd.com/read/28397778/salivary-il-8-il-6-and-tnf-%C3%AE-as-potential-diagnostic-biomarkers-for-oral-cancer
#3
REVIEW
Haafsa Arshad Sahibzada, Zohaib Khurshid, Rabia Sannam Khan, Mustafa Naseem, Khalid Mahmood Siddique, Maria Mali, Muhammad Sohail Zafar
Saliva has been useful as a liquid biopsy for the diagnosis of various oral or systemic diseases, and oral squamous cell carcinoma (OSCC) is no exception. While its early detection and prevention is important, salivary cytokines expression, specifically of Interleukin-8 (IL-8), Interleukin-6 (IL-6) and Tumor necrosis factor (TNF-α), does contribute to the pathogenesis of cancer and these cytokines serve as potential biomarkers. Their excessive production plays a role in cancer progression and establishment of angiogenesis...
April 9, 2017: Diagnostics
https://www.readbyqxmd.com/read/28375169/an-assessment-of-early-response-to-targeted-therapy-via-molecular-imaging-a-pilot-study-of-3-deoxy-3-18-f-fluorothymidine-positron-emission-tomography-18-f-flt-pet-ct-in-prostate-adenocarcinoma
#4
Kalevi Kairemo, Gregory C Ravizzini, Homer A Macapinlac, Vivek Subbiah
Fluorothymidine is a thymidine analog labeled with fluorine-18 fluorothymidine for positron emission tomography ((18)F-FLT-PET) imaging. Thymidine is a nucleic acid that is used to build DNA. Fluorine-18 fluorothymidine ((18)F-FLT) utilizes the same metabolic pathway as does thymidine but has a very low incidence of being incorporated into the DNA (<1%). (18)F-FLT-PET could have a role in the evaluation of response to targeted therapy. We present here a pilot study where we investigated cellular metabolism and proliferation in patients with prostate cancer before and after targeted therapy...
April 4, 2017: Diagnostics
https://www.readbyqxmd.com/read/28368298/ovarian-cancer-incidence-corrected-for-oophorectomy
#5
Lauren A Baldwin, Quan Chen, Thomas C Tucker, Connie G White, Robert N Ore, Bin Huang
Current reported incidence rates for ovarian cancer may significantly underestimate the true rate because of the inclusion of women in the calculations who are not at risk for ovarian cancer due to prior benign salpingo-oophorectomy (SO). We have considered prior SO to more realistically estimate risk for ovarian cancer. Kentucky Health Claims Data, International Classification of Disease 9 (ICD-9) codes, Current Procedure Terminology (CPT) codes, and Kentucky Behavioral Risk Factor Surveillance System (BRFSS) Data were used to identify women who have undergone SO in Kentucky, and these women were removed from the at-risk pool in order to re-assess incidence rates to more accurately represent ovarian cancer risk...
April 1, 2017: Diagnostics
https://www.readbyqxmd.com/read/28335512/symptoms-relevant-to-surveillance-for-ovarian-cancer
#6
Robert M Ore, Lauren Baldwin, Dylan Woolum, Erika Elliott, Christiaan Wijers, Chieh-Yu Chen, Rachel W Miller, Christopher P DeSimone, Frederick R Ueland, Richard J Kryscio, John R van Nagell, Edward J Pavlik
To examine how frequently and confidently healthy women report symptoms during surveillance for ovarian cancer. A symptoms questionnaire was administered to 24,526 women over multiple visits accounting for 70,734 reports. A query of reported confidence was included as a confidence score (CS). Chi square, McNemars test, ANOVA and multivariate analyses were performed. 17,623 women completed the symptoms questionnaire more than one time and >9500 women completed it more than one four times for >43,000 serially completed questionnaires...
March 20, 2017: Diagnostics
https://www.readbyqxmd.com/read/28335472/detecting-breast-cancer-with-a-dual-modality-device
#7
Kamila Padia, Tania S Douglas, Lydia L Cairncross, Roland V Baasch, Christopher L Vaughan
Although mammography has been the gold standard for the early detection of breast cancer, if a woman has dense breast tissue, a false negative diagnosis may occur. Breast ultrasound, whether hand-held or automated, is a useful adjunct to mammography but adds extra time and cost. The primary aim was to demonstrate that our second-generation Aceso system, which combines full-field digital mammography (FFDM) and automated breast ultrasound (ABUS) in a single platform, is able to produce improved quality images that provide clinically meaningful results...
March 18, 2017: Diagnostics
https://www.readbyqxmd.com/read/28282907/complications-from-surgeries-related-to-ovarian-cancer-screening
#8
Lauren A Baldwin, Edward J Pavlik, Emma Ueland, Hannah E Brown, Kelsey M Ladd, Bin Huang, Christopher P DeSimone, John R van Nagell, Frederick R Ueland, Rachel W Miller
The aim of this study was to evaluate complications of surgical intervention for participants in the Kentucky Ovarian Cancer Screening Program and compare results to those of the Prostate, Lung, Colorectal and Ovarian Cancer Screening trial. A retrospective database review included 657 patients who underwent surgery for a positive screen in the Kentucky Ovarian Cancer Screening Program from 1988-2014. Data were abstracted from operative reports, discharge summaries, and office notes for 406 patients. Another 142 patients with incomplete records were interviewed by phone...
March 8, 2017: Diagnostics
https://www.readbyqxmd.com/read/28282875/a-perspective-on-ovarian-cancer-biomarkers-past-present-and-yet-to-come
#9
Frederick R Ueland
The history of biomarkers and ultrasonography dates back over more than 50 years. The present status of biomarkers used in the context of ovarian cancer is addressed. Attention is given to new interpretations of the etiology of ovarian cancer. Cancer antigen 125 (CA125) and multivariate index assays (Ova1, Risk of Ovarian Malignancy Algorithm, Overa) are biomarker-driven considerations that are presented. Integration of biomarkers into ovarian cancer diagnostics and screening are presented in conjunction with ultrasound...
March 8, 2017: Diagnostics
https://www.readbyqxmd.com/read/28282847/psychological-and-behavioral-impact-of-participation-in-ovarian-cancer-screening
#10
REVIEW
Michael A Andrykowski
Evaluation of costs and benefits associated with cancer screening should include consideration of any psychological and behavioral impact associated with screening participation. Research examining the psychological and behavioral impact of screening asymptomatic women for ovarian cancer (OC) was considered. Research has focused upon potential negative psychological (e.g., distress) and behavioral (e.g., reduced future screening participation) impact of false positive (FP) OC test results. Results suggest FP OC screening results are associated with greater short-term OC-specific distress...
March 8, 2017: Diagnostics
https://www.readbyqxmd.com/read/28273857/improving-the-quality-of-diagnostic-studies-evaluating-point-of-care-tests-for-acute-hiv-infections-problems-and-recommendations
#11
Megan Smallwood, Nitika Pant Pai
The diagnosis of acute human immunodeficiency virus (HIV) infection (AHI) plays a unique role in preventing the spread of HIV and ending the epidemic. Acutely infected individuals are thought to contribute substantially to forward transmissions of HIV; however, diagnosing AHI in resource-limited settings has proven to be a challenge. While fourth generation antigen-antibody combination assays have been successful in high-resource settings, rapid point of care (POC) versions of these assays have yet to demonstrate high sensitivity to detect AHI...
March 4, 2017: Diagnostics
https://www.readbyqxmd.com/read/28257098/subtypes-of-ovarian-cancer-and-ovarian-cancer-screening
#12
REVIEW
Masafumi Koshiyama, Noriomi Matsumura, Ikuo Konishi
Ovarian cancer is the foremost cause of gynecological cancer death in the developed world, as it is usually diagnosed at an advanced stage. In this paper we discuss current issues, the efficacy and problems associated with ovarian cancer screening, and compare the characteristics of ovarian cancer subtypes. There are two types of ovarian cancer: Type I carcinomas, which are slow-growing, indolent neoplasms thought to arise from a precursor lesion, which are relatively common in Asia; and Type II carcinomas, which are clinically aggressive neoplasms that can develop de novo from serous tubal intraepithelial carcinomas (STIC) and/or ovarian surface epithelium and are common in Europe and the USA...
March 2, 2017: Diagnostics
https://www.readbyqxmd.com/read/28257064/a-pilot-study-into-the-association-between-oral-health-status-and-human-papillomavirus-16-infection
#13
Charles Xiaohang Sun, Nigel Bennett, Peter Tran, Kai Dun Tang, Yenkai Lim, Ian Frazer, Lakshman Samaranayake, Chamindie Punyadeera
BACKGROUND: Over the next 20 years, oropharyngeal cancers (OPC) will represent the majority of head and neck cancers (HNCs) in the United States. It is estimated that human papillomavirus (HPV) may account for as much as 70% to 80% of OPCs in North America and in certain parts of Europe. It is hence crucial to understand the disease risk factors and natural history of oral HPV infections. We hypothesized that poor oral health (by measures such as poor oral hygiene and periodontal disease) leads to a higher degree of oral HPV-16 infections within a patient cohort from a dental school clinic...
March 1, 2017: Diagnostics
https://www.readbyqxmd.com/read/28212290/defining-clinical-response-criteria-and-early-response-criteria-for-precision-oncology-current-state-of-the-art-and-future-perspectives
#14
Vivek Subbiah, Hubert H Chuang, Dhiraj Gambhire, Kalevi Kairemo
In this era of precision oncology, there has been an exponential growth in the armamentarium of genomically targeted therapies and immunotherapies. Evaluating early responses to precision therapy is essential for "go" versus "no go" decisions for these molecularly targeted drugs and agents that arm the immune system. Many different response assessment criteria exist for use in solid tumors and lymphomas. We reviewed the literature using the Medline/PubMed database for keywords "response assessment" and various known response assessment criteria published up to 2016...
February 15, 2017: Diagnostics
https://www.readbyqxmd.com/read/28216571/multivariate-feature-selection-of-image-descriptors-data-for-breast-cancer-with-computer-assisted-diagnosis
#15
Carlos E Galván-Tejada, Laura A Zanella-Calzada, Jorge I Galván-Tejada, José M Celaya-Padilla, Hamurabi Gamboa-Rosales, Idalia Garza-Veloz, Margarita L Martinez-Fierro
Breast cancer is an important global health problem, and the most common type of cancer among women. Late diagnosis significantly decreases the survival rate of the patient; however, using mammography for early detection has been demonstrated to be a very important tool increasing the survival rate. The purpose of this paper is to obtain a multivariate model to classify benign and malignant tumor lesions using a computer-assisted diagnosis with a genetic algorithm in training and test datasets from mammography image features...
February 14, 2017: Diagnostics
https://www.readbyqxmd.com/read/28134750/exploring-the-case-for-a-global-alliance-for-medical-diagnostics-initiative
#16
REVIEW
Melissa L Mugambi, Kara M Palamountain, Jim Gallarda, Paul K Drain
In recent years, the private and public sectors have increased investments in medical diagnostics for low- and middle-income countries (LMICs). Despite these investments, numerous barriers prevent the adoption of existing diagnostics and discourage the development and introduction of new diagnostics in LMICs. In the late 1990s, the global vaccine community had similar challenges, as vaccine coverage rates stagnated and the introduction of new vaccines was viewed as a distraction to delivering existing vaccines...
January 26, 2017: Diagnostics
https://www.readbyqxmd.com/read/28117682/salivary-diagnostics-point-of-care-diagnostics-of-mmp-8-in-dentistry-and-medicine
#17
REVIEW
Nilminie Rathnayake, Dirk-Rolf Gieselmann, Anna Maria Heikkinen, Taina Tervahartiala, Timo Sorsa
Human saliva is an easily accessible biological fluid and contains a variety of disease-related biomarkers, which makes it a potential diagnostic medium. The clinical use of salivary/oral fluid biomarkers to identify oral and systemic conditions requires the development of non-invasive screening and diagnostic technologies, and is among the main goals of oral fluid researchers. The analysis of the disease-specific oral and systemic biomarkers in saliva and oral fluids (i.e., mouth-rinse, gingival crevicular fluid (GCF) and peri-implantitis sulcular fluid (PISF)) is demanding...
January 20, 2017: Diagnostics
https://www.readbyqxmd.com/read/28106717/air-embolism-diagnosis-clinical-management-and-outcomes
#18
Colin J McCarthy, Sasan Behravesh, Sailendra G Naidu, Rahmi Oklu
Air embolism is a rare but potentially fatal complication of surgical procedures. Rapid recognition and intervention is critical for reducing morbidity and mortality. We retrospectively characterized our experience with air embolism during medical procedures at a tertiary medical center. Electronic medical records were searched for all cases of air embolism over a 25-year period; relevant medical and imaging records were reviewed. Sixty-seven air embolism cases were identified; the mean age was 59 years (range, 3-89 years)...
January 17, 2017: Diagnostics
https://www.readbyqxmd.com/read/28106714/a-promising-future-for-prostate-cancer-diagnostics
#19
EDITORIAL
Stephen J Assinder, Vanitha Bhoopalan
It has been estimated that globally there is a death attributable to prostate cancer every four minutes. As life expectancy in all world regions increases, so too incidence of this disease of the ageing male will increase. For many men diagnosis occurs after presentation with symptoms of altered urinary dynamics. Unfortunately, these changes, whilst also associated with benign disease, are evident quite late in the aetiology of prostate cancer. Early detection provides for better management and prognosis. This Special Issue provides an up to date view of the advances made towards early diagnosis and prognosis...
January 17, 2017: Diagnostics
https://www.readbyqxmd.com/read/28075337/implementation-of-point-of-care-diagnostics-in-rural-primary-healthcare-clinics-in-south-africa-perspectives-of-key-stakeholders
#20
Tivani P Mashamba-Thompson, Ngcwalisa A Jama, Benn Sartorius, Paul K Drain, Rowan M Thompson
INTRODUCTION: Key stakeholders' involvement is crucial to the sustainability of quality point-of-care (POC) diagnostics services in low-and-middle income countries. The aim of this study was to explore key stakeholder perceptions on the implementation of POC diagnostics in rural primary healthcare (PHC) clinics in South Africa. METHOD: We conducted a qualitative study encompassing in-depth interviews with multiple key stakeholders of POC diagnostic services for rural and resource-limited PHC clinics...
January 8, 2017: Diagnostics
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