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Arutha Kulasinghe, Jian Zhou, Liz Kenny, Ian Papautsky, Chamindie Punyadeera
Circulating tumour cells (CTCs) are the metastatic precursors to distant disease in head and neck cancers (HNCs). Whilst the prognostic and predictive value of single CTCs have been well documented, the role of CTC clusters, which potentially have a higher metastatic capacity are limited. In this study, the authors used a novel straight microfluidic chip to focus and capture CTCs. The chip offers high cell recoveries with clinically relevant numbers (10⁻500 cells/mL) without the need for further purification...
January 14, 2019: Cancers
Tao Xue, Yixuan Zheng, Dan Tong, Bo Zheng, Xin Li, Tong Zhu, Qiang Zhang
Ambient exposure to fine particulate matter (PM2.5 ) is known to harm public health in China. Satellite remote sensing measurements of aerosol optical depth (AOD) were statistically associated with in-situ observations after 2013 to predict PM2.5 concentrations nationwide, while the lack of surface monitoring data before 2013 have created difficulties in historical PM2.5 exposure estimates. Hindcast approaches using statistical models or chemical transport models (CTMs) were developed to overcome this limitation, while those approaches still suffer from incomplete daily coverage due to missing AOD data or limited accuracy due to uncertainties of CTMs...
December 15, 2018: Environment International
Sibel Cetintas, Gulcin Tezcan, Berrin Tunca, Unal Egeli, Mustafa Sehsuvar Gokgoz, Gulsah Cecener
Distant organ tumor dissemination is a major cause of breast cancer-related deaths. In 2010, we analyzed the prognostic importance of the circulating tumor markers (CTM) cytokeratin (CK)19, CK20, epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2) in relation to the clinical and pathological characteristics of patients with breast cancer (BC). To assess the clinical utility of CK19, CK20 and EGFR in predicting distant metastasis and recurrence in BC, here we report 7-year follow-up results of 77 patients...
September 17, 2018: Bosnian Journal of Basic Medical Sciences
Ulas Im, Jesper Heile Christensen, Camilla Geels, Kaj Mantzius Hansen, Jørgen Brandt, Efisio Solazzo, Ummugulsum Alyuz, Alessandra Balzarini, Rocio Baro, Roberto Bellasio, Roberto Bianconi, Johannes Bieser, Augustin Colette, Gabriele Curci, Aidan Farrow, Johannes Flemming, Andrea Fraser, Pedro Jimenez-Guerrero, Nutthida Kitwiroon, Peng Liu, Uarporn Nopmongcol, Laura Palacios-Peña, Guido Pirovano, Luca Pozzoli, Marje Prank, Rebecca Rose, Ranjeet Sokhi, Paolo Tuccella, Alper Unal, Marta G Vivanco, Greg Yarwood, Christian Hogrefe, Stefano Galmarini
In the framework of the third phase of the Air Quality Model Evaluation International Initiative (AQMEII3), and as contribution to the second phase of the Hemispheric Transport of Air Pollution (HTAP2) activities for Europe and North America, the impacts of a 20 % decrease of global and regional anthropogenic emissions on surface air pollutant levels in 2010 are simulated by an international community of regional-scale air quality modeling groups, using different state-of-the-art chemistry and transport models (CTMs)...
2018: Atmospheric Chemistry and Physics
Menglin Bai, Benkui Zou, Zhendan Wang, Pang Li, Huansheng Wang, Yang Ou, Kai Cui, Jiasheng Bian, Sheng Li, Xiaobin Xu
BACKGROUND/AIMS: Detection of circulating tumor cells (CTCs) in cancer patients has diagnostic and prognostic importance. However, the clinical implications of CTC detection in patients with renal cell carcinoma (RCC) are still unclear. In this study, we investigated the clinical significance of CTCs using two detection systems, the CellSearch system (CSS) and isolation by size of epithelial tumor cells (ISET), among RCC patients. METHODS: We recruited 36 RCC patients and 22 healthy volunteers as controls...
October 2018: International Urology and Nephrology
Ulas Im, Jørgen Brandt, Camilla Geels, Kaj Mantzius Hansen, Jesper Heile Christensen, Mikael Skou Andersen, Efisio Solazzo, Ioannis Kioutsioukis, Ummugulsum Alyuz, Alessandra Balzarini, Rocio Baro, Roberto Bellasio, Roberto Bianconi, Johannes Bieser, Augustin Colette, Gabriele Curci, Aidan Farrow, Johannes Flemming, Andrea Fraser, Pedro Jimenez-Guerrero, Nutthida Kitwiroon, Ciao-Kai Liang, Uarporn Nopmongcol, Guido Pirovano, Luca Pozzoli, Marje Prank, Rebecca Rose, Ranjeet Sokhi, Paolo Tuccella, Alper Unal, Marta Garcia Vivanco, Jason West, Greg Yarwood, Christian Hogrefe, Stefano Galmarini
The impact of air pollution on human health and the associated external costs in Europe and the United States (US) for the year 2010 are modeled by a multi-model ensemble of regional models in the frame of the third phase of the Air Quality Modelling Evaluation International Initiative (AQMEII3). The modeled surface concentrations of O3 , CO, SO2 and PM2.5 are used as input to the Economic Valuation of Air Pollution (EVA) system to calculate the resulting health impacts and the associated external costs from each individual model...
April 27, 2018: Atmospheric Chemistry and Physics
Pamela Klein, Supraja Narasimhan, Joshua D Safer
Despite increasing appreciation for the medical needs of transgender individuals, the organization of transgender medical care remains suboptimal. Transgender individuals report difficulty in finding providers who have adequate expertise in caring for transgender patients, a lack of provider cultural competence, health system barriers, and discrimination in healthcare settings. At Boston Medical Center (BMC), we sought to address these gaps within an existing academic medical center. In February 2016, BMC established a Center for Transgender Medicine and Surgery (CTMS) to provide a single address for patients to obtain transgender-specific services across a spectrum of healthcare needs...
2018: Transgender Health
Guangdong Wu, Rongrong Zhu, Yatong Li, Yupei Zhao, Menghua Dai
The significance of circulating tumor microemboli (CTMs) in patients with pancreatic ductal adenocarcinoma (PDAC) is still unknown. Thus, the present study used a epithelial cellular adhesion molecule independent subtraction and immunostaining-fluorescence in situ hybridization (SET-iFISH) platform to enumerate circulating tumor cells (CTCs) and CTMs in a total of 86 peripheral blood samples from 19 patients with PDAC. The associations between CTCs and CTMs with clinicopathologic factors and prognoses were analyzed...
May 2018: Oncology Letters
Lea Bentur, Michal Gur, Mordechai Pollak, Kamal Masarweh, Ido Solt, Moshe Bronshtein
OBJECTIVES: To evaluate and describe the spectrum and rate of congenital thoracic malformations (CTMs) diagnosed by early prenatal sonography (gestational age (GA) less than 16 weeks). METHODS: A retrospective, cross-sectional analysis of prenatal ultrasound screening tests in a community-based clinic. RESULTS: In 2001-2017, 31 261 prenatal ultrasound tests detected 31 CTMs at a gestational age of 15.2 (range, 11.6-16.0) weeks. The most common malformation was congenital pleural effusion (CPE) (15 fetuses, 0...
May 2, 2018: Journal of Maternal-fetal & Neonatal Medicine
E P Casula, L Rocchi, R Hannah, J C Rothwell
BACKGROUND: the influence of pulse width, pulse waveform and current direction on transcranial magnetic stimulation (TMS) outcomes is of critical importance. However, their effects have only been investigated indirectly with motor-evoked potentials (MEP). By combining TMS and EEG it is possible to examine how these factors affect evoked activity from the cortex and compare that with the effects on MEP. OBJECTIVE: we used a new controllable TMS device (cTMS) to vary systematically pulse width, pulse waveform and current direction and explore their effects on global and local TMS-evoked EEG response...
September 2018: Brain Stimulation
Yu Rang Park, Young Jo Yoon, HaYeong Koo, Soyoung Yoo, Chang-Min Choi, Sung-Ho Beck, Tae Won Kim
BACKGROUND: Clinical trials pose potential risks in both communications and management due to the various stakeholders involved when performing clinical trials. The academic medical center has a responsibility and obligation to conduct and manage clinical trials while maintaining a sufficiently high level of quality, therefore it is necessary to build an information technology system to support standardized clinical trial processes and comply with relevant regulations. OBJECTIVE: The objective of the study was to address the challenges identified while performing clinical trials at an academic medical center, Asan Medical Center (AMC) in Korea, by developing and utilizing a clinical trial management system (CTMS) that complies with standardized processes from multiple departments or units, controlled vocabularies, security, and privacy regulations...
April 24, 2018: Journal of Medical Internet Research
Catarina Teige, Giovanna Mollo, Rebecca Millman, Nicola Savill, Jonathan Smallwood, Piers L Cornelissen, Elizabeth Jefferies
Distinct neural processes are thought to support the retrieval of semantic information that is (i) coherent with strongly-encoded aspects of knowledge, and (ii) non-dominant yet relevant for the current task or context. While the brain regions that support readily coherent and more controlled patterns of semantic retrieval are relatively well-characterised, the temporal dynamics of these processes are not well-understood. This study used magnetoencephalography (MEG) and dual-pulse chronometric transcranial magnetic stimulation (cTMS) in two separate experiments to examine temporal dynamics during the retrieval of strong and weak associations...
June 2018: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
Wen Xu, Bo Shang, Yansen Xu, Xiangyang Yuan, Anthony J Dore, Yuanhong Zhao, Raia-Silvia Massad, Zhaozhong Feng
The stomatal compensation point of ammonia (χs ) is a key factor controlling plant-atmosphere NH3 exchange, which is dependent on the nitrogen (N) supply and varies among plant species. However, knowledge gaps remain concerning the effects of elevated atmospheric N deposition and ozone (O3 ) on χs for forest species, resulting in large uncertainties in the parameterizations of NH3 incorporated into atmospheric chemistry and transport models (CTMs). Here, we present leaf-scale measurements of χs for hybrid poplar clone '546' (Populusdeltoides cv...
July 2018: Environmental Pollution
Alexcia Camila Braun, Celso Abdon Lopes de Mello, Marcelo Corassa, Emne Ali Abdallah, Ana Cláudia Urvanegia, Vanessa Silva Alves, Bianca C T C P Flores, Mônica Díaz, Ulisses Ribaldo Nicolau, Virgilio Souza E Silva, Vinicius Calsavara, Patrizia Paterlini-Brechót, Ludmilla Thomé Domingos Chinen
INTRODUCTION: Soft tissue Sarcomas (STS) are rare malignances, with high mortality rates. Half of patients develop metastasis. The presence of isolated Circulating Tumor Cells (CTCs) and Circulating Tumor Microemboli (CTM) in the blood may be early markers of tumor invasion. Epidermal Growth Factor (EGF) family receptors can also influence this process. OBJECTIVES: to quantify CTCs and identify CTM as well as the EGF Receptor (EGFR) protein expression in these cells and correlate with clinical outcome in metastatic STS...
June 3, 2018: Cancer Biology & Therapy
Martin Sommer, Matteo Ciocca, Raffaella Chieffo, Paul Hammond, Andreas Neef, Walter Paulus, John C Rothwell, Ricci Hannah
BACKGROUND: Biphasic pulses produced by most commercially available TMS machines have a cosine waveform, which makes it difficult to study the interaction between the two phases of stimulation. OBJECTIVE: We used a controllable pulse TMS (cTMS) device delivering quasi-rectangular pulse outputs to investigate whether monophasic are more effective than biphasic pulses. METHODS: Temporally symmetric ("biphasic") or highly asymmetric ("monophasic") charge-balanced biphasic stimuli were used to target the hand area of motor cortex in the anterior-posterior (AP) or posterior-anterior (PA) initial current direction...
May 2018: Brain Stimulation
Po-Ying Yeh, Yih-Ruey Chen, Chien-Fang Wang, Ying-Chih Chang
To efficiently isolate maximal quantity of circulating tumor cells (CTCs) and circulating tumor cell microembolis (CTMs) from patient blood by antibody coated microfluidics, a multifunctional, pegylated polyamidoamine-dendrimers conjugated supported lipid bilayer surface construct was proposed to enhance accessibility of antibody molecules to the antigen molecules on target CTCs. The combination of a hydrated, stretchable dendrimer and a laterally mobile supported lipid bilayer (SLB) provide attached antibody molecules with 2...
February 12, 2018: Biomacromolecules
Michael S Clark, Felix E Diehn, Jared T Verdoorn, Vance T Lehman, Greta B Liebo, Jonathan M Morris, Kent R Thielen, John T Wald, Neeraj Kumar, Patrick H Luetmer
PURPOSE: A recently identified and treatable cause of spontaneous intracranial hypotension (SIH) is cerebrospinal fluid (CSF)-venous fistula, and a recently described computed tomography myelogram (CTM) finding highly compatible with but not diagnostic of this entity is the hyperdense paraspinal vein sign. We aimed to retrospectively measure the prevalence of the hyperdense paraspinal vein sign on CTMs in SIH patients without dural CSF leak, in comparison with control groups. METHODS: Three CTM groups were identified: 1) SIH study group, which included dural CSF leak-negative standard CTMs performed for SIH, with early and delayed imaging; 2) Early control CTMs, which were performed for indications other than SIH, with imaging shortly after intrathecal contrast administration; 3) Delayed control CTMs, which included delayed imaging...
January 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
Longwen Yan, Xiaoquan Ji, Shaodong Song, Fan Xia, Yuan Xu, Jiruo Ye, Min Jiang, Wenjin Chen, Tengfei Sun, Shaoyong Liang, Fei Ling, Rui Ma, Mei Huang, Hongpeng Qu, Xianming Song, Deliang Yu, Zhongbin Shi, Yi Liu, Qingwei Yang, Min Xu, Xuru Duan, Yong Liu
The stability and performance of tokamak plasmas are routinely limited by various magneto-hydrodynamic instabilities, such as neoclassical tearing modes (NTMs). This paper presents a rather simple method to control the NTMs in real time (RT) on a tokamak, including the control principle of a feedback approach for RT suppression and stabilization for the NTMs. The control system combines Mirnov, electron cyclotron emission, and soft X-ray diagnostics used for determining the NTM positions. A methodology for fast detection of 2/1 or 3/2 NTM positions with 129 × 129 grid reconstruction is elucidated...
November 2017: Review of Scientific Instruments
Hee-Yeon Jung, Sook Jin Seong, Ji-Young Choi, Jang-Hee Cho, Sun-Hee Park, Chan-Duck Kim, Young-Ran Yoon, Hyung-Kee Kim, Seung Huh, Se-Hee Yoon, Jong Soo Lee, Yong-Lim Kim
BACKGROUND: Immunosuppression non-adherence in kidney transplant recipients (KTRs) not only increases the risk of medical intervention due to acute rejection and graft loss but burdens the socioeconomic system in the form of increased healthcare costs. An aggressive preemptive effort by healthcare professionals, geared to ensure adherence to immunosuppressants in KTRs, is significant and imperative. METHODS/DESIGN: This study was designed as a prospective, open-label, multicenter, randomized controlled study aimed at evaluating the efficacy and stability of an information and communication technology (ICT)-based centralized monitoring system in boosting medication adherence in KTRs...
October 16, 2017: Trials
Patrícia Rodrigues Orsi, Fernanda Cruz Landim-Alvarenga, Luis Antônio Justulin, Ramon Kaneno, Marjorie de Assis Golim, Daniela Carvalho Dos Santos, Camila Fernanda Zorzella Creste, Eunice Oba, Leandro Maia, Benedito Barraviera, Rui Seabra Ferreira
BACKGROUND: The injection of mesenchymal stem cells (MSCs) directly into the bone of osteoporotic (OP) patients for rapid recovery has been studied worldwide. Scaffolds associated with MSCs are used to maintain and avoid cell loss after application. A unique heterologous fibrin sealant (HFS) derived from snake venom was evaluated for the cytotoxicity of its main components and as a three-dimensional biological scaffold for MSCs to repair a critical femur defect in osteoporotic rats. METHODS: The cytotoxicity of HFS was assessed using a 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazoliumbromide (MTT) assay and transmission electron microscopy...
September 29, 2017: Stem Cell Research & Therapy
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