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https://www.readbyqxmd.com/read/29346085/performance-of-the-bioplex-2200-hiv-ag-ab-assay-for-identifying-acute-hiv-infection
#1
Susan H Eshleman, Estelle Piwowar-Manning, Mariya V Sivay, Barbara Debevec, Stephanie Veater, Laura McKinstry, Linda-Gail Bekker, Sharon Mannheimer, Robert M Grant, Margaret A Chesney, Thomas J Coates, Beryl A Koblin, Jessica M Fogel
BACKGROUND: Assays that detect HIV antigen (Ag) and antibody (Ab) can be used to screen for HIV infection. OBJECTIVES: To compare the performance of the BioPlex 2200 HIV Ag-Ab assay and two other Ag/Ab combination assays for detection of acute HIV infection. STUDY DESIGN: Samples were obtained from 24 individuals (18 from the US, 6 from South Africa); these individuals were classified as having acute infection based on the following criteria: positive qualitative RNA assay; two negative rapid tests; negative discriminatory test...
January 11, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29343988/does-breast-density-measured-through-population-based-screening-independently-increase-breast-cancer-risk-in-asian-females
#2
Boyoung Park, Hye Mi Cho, Eun Hye Lee, Seunghoon Song, Mina Suh, Kui Son Choi, Bong Joo Kang, Kyungran Ko, Ann Yi, Hae Kyoung Jung, Joo Hee Cha, Jae Kwan Jun
Purpose: The purpose of this study was to investigate the effects of breast density on breast cancer risk among women screened via a nationwide mammographic screening program. Patients and methods: We conducted a nested case-control study for a randomly selected population of 1,561 breast cancer patients and 6,002 matched controls from the National Cancer Screening Program. Breast density was measured and recorded by two independent radiologists using the Breast Imaging Reporting and Data System (BI-RADS)...
2018: Clinical Epidemiology
https://www.readbyqxmd.com/read/29341356/all-over-the-map-an-interobserver-agreement-study-of-tumor-location-based-on-the-pi-radsv2-sector-map
#3
Matthew D Greer, Joanna H Shih, Tristan Barrett, Sandra Bednarova, Ismail Kabakus, Yan Mee Law, Haytham Shebel, Maria J Merino, Bradford J Wood, Peter A Pinto, Peter L Choyke, Baris Turkbey
BACKGROUND: Prostate imaging reporting and data system version 2 (PI-RADSv2) recommends a sector map for reporting findings of prostate cancer mulitparametric MRI (mpMRI). Anecdotally, radiologists may demonstrate inconsistent reproducibility with this map. PURPOSE: To evaluate interobserver agreement in defining prostate tumor location on mpMRI using the PI-RADSv2 sector map. STUDY TYPE: Retrospective. POPULATION: Thirty consecutive patients who underwent mpMRI between October, 2013 and March, 2015 and who subsequently underwent prostatectomy with whole-mount processing...
January 17, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29339969/a-new-toolset-for-protein-expression-and-subcellular-localization-studies-in-citrus-and-its-application-to-citrus-tristeza-virus-proteins
#4
Amit Levy, Choaa El-Mochtar, Chunxia Wang, Michael Goodin, Vladimir Orbovic
Background: Transient gene expression is a powerful tool to study gene function in plants. In citrus, Agrobacterium transformation is the method of choice for transient expression studies, but this method does not work efficiently with many gene constructs, and there is a need for a more robust transient expression system in citrus leaves. Biolistic particle delivery is an alternative to Agrobacterium transformation, and in some plants, such as Arabidopsis, gives higher transformation rates in leaf tissues than Agrobacterium...
2018: Plant Methods
https://www.readbyqxmd.com/read/29338903/clinical-workflow-optimization-to-improve-4dct-reconstruction-for-toshiba-aquilion-ct-scanners
#5
P Freislederer, C Heinz, H von Zimmermann, S Gerum, F Roeder, M Reiner, M Söhn, C Belka, K Parodi
Respiratory motion remains a source of major uncertainties in radiotherapy. Respiratory correlated computed tomography (referred to as 4DCT) serves as one way of reducing breathing artifacts in 3D-CTs and allows the investigation of tumor motion over time. The quality of the 4DCT images depends on the data acquisition scheme, which in turn is dependent on the vendor. Specifically, the only way Toshiba Aquilion LB CT scanners can reconstruct 4DCTs is a cycle-based reconstruction using triggers provided by an external surrogate signal...
January 12, 2018: Zeitschrift Für Medizinische Physik
https://www.readbyqxmd.com/read/29338316/retroareolar-masses-and-intraductal-abnormalities-detected-on-screening-ultrasound-can-biopsy-be-avoided
#6
Yang Guo, Madhavi Raghu, Melissa Durand, Regina Hooley
OBJECTIVE: To investigate the malignancy rate of retroareolar masses and intraductal abnormalities discovered in asymptomatic women during screening whole breast ultrasound (US-S) and determine if biopsy can be avoided. METHODS: This is a HIPAA compliant retrospective study. Our radiology electronic medical records were searched for the phrases "retroareolar mass" or "intraductal mass" combined with "screening whole breast ultrasound" performed between 10/1/2009 to 5/30/2015...
January 17, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29334970/digital-media-based-health-intervention-on-the-promotion-of-women-s-physical-activity-a-quasi-experimental-study
#7
Nooshin Peyman, Majid Rezai-Rad, Hadi Tehrani, Mahdi Gholian-Aval, Mohammad Vahedian-Shahroodi, Hamid Heidarian Miri
BACKGROUND: Technological advances have caused poor mobility and lower physical activity among humankind. This study was conducted to assess the impact of a digital media-based (multi-media, internet, and mobile phone) health intervention on promotion of women's physical activity. METHODS: In this quasi-experimental study, 360 women were divided into case and control groups. The digital media-based educational intervention was conducted in two months in the case group electronically, using mail and Internet and telephone platforms...
January 15, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29334761/regulation-of-cancer-and-cancer-related-genes-via-nad
#8
Tanveer Sharif, Emma Martell, Cathleen Dai, Mohammad Ghassemi-Rad, Barry Kennedy, Patrick Lee, Shashi Gujar
SIGNIFICANCE: NAD+ is an essential redox cofactor in cellular metabolism and has emerged as an important regulator of a wide spectrum of disease conditions, most notably, cancers. As such, various strategies targeting NAD+ synthesis in cancers are in clinical trials. Recent Advances: Being a substrate required for the activity of various enzyme families, especially sirtuins and poly(ADP-ribose) polymerases, NAD+-mediated signaling plays an important role in gene expression, calcium release, cell cycle progression, DNA repair and cell proliferation...
January 15, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29332512/rape-aggression-defense-unique-self-efficacy-benefits-for-survivors-of-sexual-trauma
#9
Caitlin M Pinciotti, Holly K Orcutt
Self-defense training is consistently linked to psychological benefits for survivors of sexual trauma, yet little is known about how training may uniquely benefit survivors compared with their nonsurvivor peers enrolled in the same course. Path analysis was used to examine how history of sexual trauma impacts pre- and post-training scores on three domains of self-efficacy using a national sample of Rape Aggression Defense (RAD) participants. All participants reported significant increases in self-efficacy domains, and sexual trauma history significantly predicted pre-training interpersonal self-efficacy and post-training self-defense self-efficacy, suggesting that self-defense training confers benefits for survivors above and beyond benefits for other participants...
June 1, 2017: Violence Against Women
https://www.readbyqxmd.com/read/29332027/phyllodes-tumors-of-the-breast-clinicopathological-analysis-of-106-cases-from-a-single-institution
#10
Boubacar Efared
BACKGROUND: Phyllodes tumors (PT) are uncommon biphasic tumors, accounting for less than 1% of all breast primary neoplasms. They form a wide variety of tumors ranging from benign to malignant. Several histological features are used to grade PT into 3 categories: benign (grade I), borderline (grade II) and malignant (grade III) tumors. The aim of our study was to analyse histolopathological, radiological and clinical features of PT from an experience of a single center. METHODS: It was a retrospective study including 106 patients diagnosed with phyllodes tumors on surgical specimens at the department of pathology, of Hassan II university hospital (Fez, Morocco), from 2009 to 2016...
January 10, 2018: Breast Disease
https://www.readbyqxmd.com/read/29330514/a-comparison-of-static-and-dynamic-cerebral-autoregulation-during-mild-whole-body-cold-stress-in-individuals-with-and-without-cervical-spinal-cord-injury-a-pilot-study
#11
Jan W van der Scheer, Yoshi-Ichiro Kamijo, Christof A Leicht, Philip J Millar, Manabu Shibasaki, Victoria L Goosey-Tolfrey, Fumihiro Tajima
STUDY DESIGN: Experimental study. OBJECTIVES: To characterize static and dynamic cerebral autoregulation (CA) of individuals with cervical spinal cord injury (SCI) compared to able-bodied controls in response to moderate increases in mean arterial pressure (MAP) caused by mild whole-body cold stress. SETTING: Japan METHODS: Five men with complete autonomic cervical SCI (sustained > 5 y) and six age-matched able-bodied men participated in hemodynamic, temperature, catecholamine and respiratory measurements for 60 min during three consecutive stages: baseline (10 min; 33 °C water through a thin-tubed whole-body suit), mild cold stress (20 min; 25 °C water), and post-cold recovery (30 min; 33 °C water)...
January 12, 2018: Spinal Cord
https://www.readbyqxmd.com/read/29330432/developing-genome-wide-snps-and-constructing-an-ultrahigh-density-linkage-map-in-oil-palm
#12
Bin Bai, Le Wang, Ying Jun Zhang, May Lee, Rahmadsyah Rahmadsyah, Yuzer Alfiko, Bao Qing Ye, Sigit Purwantomo, Antonius Suwanto, Nam-Hai Chua, Gen Hua Yue
Oil palm (Elaeis guineensis Jacq.) is the leading oil-producing crops and the most important edible oil resource worldwide. DNA markers and genetic linkage maps are essential resources for marker-assisted selection to accelerate genetic improvement. We conducted RAD-seq on an Illumina NextSeq500 to discover genome-wide SNPs, and used the SNPs to construct a linkage map for an oil palm (Tenera) population derived from a cross between a Deli Dura and an AVROS Pisifera. The RAD-seq produced 1,076 million single-end reads across the breeding population containing 155 trees...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330001/in-bore-3-0-t-magnetic-resonance-imaging-guided-transrectal-targeted-prostate-biopsy-in-a-repeat-biopsy-population-diagnostic-performance-complications-and-learning-curve
#13
Alexander Friedl, Jenifer Schneeweiss, Sabina Sevcenco, Klaus Eredics, Thomas Kunit, Martin Susani, Danijel Kivaranovic, Edith Eisenhuber-Stadler, Lukas Lusuardi, Clemens Brössner, Wolfgang Schima
OBJECTIVE: To evaluate the diagnostic performance and complication rate of the in-bore magnetic resonance imaging-guided transrectal targeted prostate biopsy (MRGB) in a repeat biopsy population on basis of a nearly four year learning curve (2014-2017). MATERIALS AND METHODS: A total of 142 consecutive males with a history of previous biopsies and persistent suspicion of prostate cancer (PCa) due to prostate specific antigen (PSA) elevation initially underwent MRGB in the case of prostate imaging reporting and data system (PI-RADS) 3-5 lesions...
January 9, 2018: Urology
https://www.readbyqxmd.com/read/29329265/multiple-octave-spanning-vibration-sensing-based-on-simultaneous-vector-demodulation-of-499-fizeau-interference-signals-from-identical-ultra-weak-fiber-bragg-gratings-over-2-5-km
#14
Yi Li, Li Qian, Ciming Zhou, Dian Fan, Qiannan Xu, Yandong Pang, Xi Chen, Jianguan Tang
Multi-point vibration sensing at the low frequency range of 0.5-100 Hz is of vital importance for applications such as seismic monitoring and underwater acoustic imaging. Location-resolved multi-point sensing using a single fiber and a single demodulation system can greatly reduce system deployment and maintenance costs. We propose and demonstrate the demodulation of a fiber-optic system consisting of 500 identical ultra-weak Fiber Bragg gratings (uwFBGs), capable of measuring the amplitude, frequency and phase of acoustic signals from 499 sensing fibers covering a total range of 2...
January 12, 2018: Sensors
https://www.readbyqxmd.com/read/29328445/the-effects-of-interleukin-2-and-rad-p53-as-a-treatment-for-glioblastoma
#15
Hai-Bo Qiao, Jia Li, Lian-Jie Lv, Ben-Jin Nie, Peng Lu, Feng Xue, Zhi-Ming Zhang
Interleukin 2 (IL-2) is an anti-cancer cytokine that stimulates T cell propagation, triggering innate and adaptive immunity. IL-2 has been used for cancer therapy and has achieved curative effects. Recombinant adenovirus p53 injection (rAd‑p53) is a gene therapeutic agent that may improve the prognosis of patients with glioblastoma (GBM). In the present study, the effect of combined IL‑2 and rAd‑p53 treatment was studied. The ability of IL‑2 to stimulate immunoregulation and the ability of p53 to induce apoptosis for GBM was researched in the GBM tumor model...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328331/directional-torsion-and-temperature-discrimination-based-on-a-multicore-fiber-with-a-helical-structure
#16
Hailiang Zhang, Zhifang Wu, Perry Ping Shum, Xuguang Shao, Ruoxu Wang, Xuan Quyen Dinh, Songnian Fu, Weijun Tong, Ming Tang
We propose and experimentally demonstrate a directional torsion sensor based on a Mach-Zehnder interferometer formed in a multicore fiber (MCF) with a ~570-μm-long helical structure (HS). The HS was fabricated into the MCF by simply pre-twisting and then heating with a CO2 laser splicing system. This device shows the capability of directional torsion measurement from -17.094 rad/m to 15.669 rad/m with the sensitivity of ~0.118 nm/(rad/m). Moreover, since the multiple interferences respond differently to torsion and temperature simultaneously, the temperature cross-sensitivity of the proposed sensor can be eliminated effectively...
January 8, 2018: Optics Express
https://www.readbyqxmd.com/read/29325321/-preliminary-applicability-evaluation-of-prostate-imaging-reporting-and-data-system-version-2-diagnostic-score-in-3-0t-multi-parameters-magnetic-resonance-imaging-combined-with-prostate-specific-antigen-density-for-prostate-cancer
#17
M Z Zuo, W L Zhao, C G Wei, C Y Zhang, R Wen, Y F Gu, M J Li, Y Y Zhang, J F Wu, X Li, J K Shen
Objective: To investigate the preliminary applicability of Prostate Imaging Reporting and Data System version 2 (PI-RADS v2) score in the condition of 3.0T multi-parametric magnetic resonance imaging (Mp-MRI) combined with clinical classic indicators for the diagnosis of prostate cancer (PCa). Methods: The clinical and MRI materials of 247 patients of suspicious prostate disease treated in Second Affiliated Hospital of Soochow University from June 2015 to November 2016 were analyzed retrospectively, including 110 cases with PCa and 137 cases without cancer...
December 19, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29325077/integrating-restriction-site-associated-dna-sequencing-rad-seq-with-morphological-cladistic-analysis-clarifies-evolutionary-relationships-among-major-species-groups-of-bee-orchids
#18
Richard M Bateman, Gábor Sramkó, Ovidiu Paun
Background and Aims: Bee orchids (Ophrys) have become the most popular model system for studying reproduction via insect-mediated pseudo-copulation and for exploring the consequent, putatively adaptive, evolutionary radiations. However, despite intensive past research, both the phylogenetic structure and species diversity within the genus remain highly contentious. Here, we integrate next-generation sequencing and morphological cladistic techniques to clarify the phylogeny of the genus...
January 9, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29319344/clinical-performance-metrics-of-3d-stereoscopic-digital-mammography-compared-with-2d-digital-mammography-observer-study
#19
Akiko Daidoji, Takatoshi Aoki, Seiichi Murakami, Mari Miyata, Masami Fujii, Takefumi Katsuki, Yuzuru Inoue, Yuko Tashima, Yoshika Nagata, Keiji Hirata, Fumihiro Tanaka, Yukunori Korogi
OBJECTIVE: To assess the clinical performance of three-dimensional stereoscopic digital mammography (3DsDM) compared with two-dimensional digital mammography (2DDM) for breast lesion diagnosis with jackknife free-response receiver operating characteristics (JAFROC) observer study. METHODS: Forty pairs of standard-dose 2DDM and their 3DsDM images were used for an observer performance study. A total of 18 lesions were identified as the reference standard of actionable breast lesions (BI-RADS category 3 or more) by 2 breast radiologists...
January 10, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29318354/li-rads-a-glimpse-into-the-future
#20
REVIEW
Claude B Sirlin, Ania Z Kielar, An Tang, Mustafa R Bashir
This article provides a glimpse into the future of the Liver Imaging Reporting and Data System (LI-RADS), discussing the immediate and long-term plans for its continuing improvement and expansion. To complement the Core and Essentials components of the latest version of LI-RADS, a comprehensive manual will be released soon, and it will include technical recommendations, management guidance, as well as reporting instructions and templates. In this article, we briefly review the process by which LI-RADS has been developed until now, a process guided by a variable combination of data, expert opinion, and desire for congruency with other diagnostic systems in North America...
January 9, 2018: Abdominal Radiology
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