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https://www.readbyqxmd.com/read/29609516/a-systematic-review-of-positron-emission-tomography-of-tau-amyloid-beta-and-neuroinflammation-in-chronic-traumatic-encephalopathy-the-evidence-to-date
#1
Bern Lee, MacKenzie Leavitt, Charles Bernick, Gabriel Leger, Gil Rabinovici, Sarah Banks
Chronic Traumatic Encephalopathy (CTE) is associated with pathological changes, yet detecting these changes during life has proven elusive. Positron Emission Tomography (PET) offers the potential for identifying such pathology. Few studies have been completed to-date and their approaches and results have been diverse. It was the objective of this review to systematically examine relevant research using ligands for PET that bind to identified pathology in CTE. We focused on identification of patterns of binding and addressing gaps in knowledge of PET imaging for CTE...
April 2, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29581670/effects-of-chin-tuck-exercise-using-neckline-slimmer-device-on-suprahyoid-and-sternocleidomastoid-muscle-activation-in-healthy-adults
#2
Jong-Hoon Moon, Jin-Hwa Jung, Suk-Chan Hahm, Kyoung-Sim Jung, Hye Rim Suh, Hwi-Young Cho
[Purpose] This study investigated the effect of chin tuck exercise (CTE) using a neckline slimmer device on suprahyoid (SH) and sternocleidomastoid (SCM) muscle activation in healthy adults. [Subjects and Methods] We measured activation of the SH and SCM muscles using surface electromyography in 20 healthy adults during head lift exercise (HLE) and CTE using a neckline slimmer device. The order of exercises was randomized and the mean and peak values of each muscle's activation were assessed. [Results] During the CTE using a neckline slimmer device, SH activation was significantly greater and SCM activation was significantly lower than during the HLE...
March 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29568656/emotional-lability-as-a-unique-presenting-sign-of-suspected-chronic-traumatic-encephalopathy
#3
Shauna H Yuan, Sonya G Wang
Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease caused by head trauma. Diagnosis of this disease is difficult as reliable biomarkers have not been established and often this clinical entity is underappreciated with poor recognition of its clinical presentations (Lenihan and Jordan, 2015). The definitive diagnosis of CTE is determined by identification of neurofibrillary tangles in the perivascular space around the sulci in postmortem tissue (McKee et al., 2015). However, performing brain biopsies searching for neurofibrillary tangles is not a feasible option for early diagnosis...
2018: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/29562422/-predictive-value-of-the-grace-discharge-score-on-the-long-term-out-of-hospital-coronary-thrombotic-events-after-implantation-of-drug-eluting-stents
#4
X Y Zhao, J X Li, X F Tang, Y Xian, J J Xu, Y Song, L Jiang, L J Xu, J Chen, Y Zhang, L Song, L J Gao, Z Gao, J Zhang, Y Wu, S B Qiao, Y J Yang, R L Gao, B Xu, J Q Yuan
Objective: To evaluate the predictive value of GRACE discharge score on the long-term out-of-hospital coronary thrombotic events (CTE) after percutaneous coronary intervention (PCI) with drug-eluting stents. Methods: Present study was a prospective, observational, single center study. 10 724 consecutive patients underwent PCI in Fuwai Hospital between January and December 2013 were included, stents were implanted with conventional method. After PCI, patients were prescribed aspirin 100 mg once daily indefinitely, and either clopidogrel 75 mg once daily or ticagrelor 90 mg twice daily for at least 1 year...
March 24, 2018: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29561422/the-combination-of-a-reduction-in-contrast-agent-dose-with-low-tube-voltage-and-an-adaptive-statistical-iterative-reconstruction-algorithm-in-ct-enterography-effects-on-image-quality-and-radiation-dose
#5
Cui Feng, Di Zhu, Xianlun Zou, Anqin Li, Xuemei Hu, Zhen Li, Daoyu Hu
To investigate the subjective and quantitative image quality and radiation exposure of CT enterography (CTE) examination performed at low tube voltage and low concentration of contrast agent with adaptive statistical iterative reconstruction (ASIR) algorithm, compared with conventional CTE.One hundred thirty-seven patients with suspected or proved gastrointestinal diseases underwent contrast enhanced CTE in a multidetector computed tomography (MDCT) scanner. All cases were assigned to 2 groups. Group A (n = 79) underwent CT with low tube voltage based on patient body mass index (BMI) (BMI < 23 kg/m, 80 kVp; BMI ≥ 23 kg/m, 100 kVp) and low concentration of contrast agent (270 mg I/mL), the images were reconstructed with standard filtered back projection (FBP) algorithm and 50% ASIR algorithm...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29558794/clustering-triggered-emission-and-persistent-room-temperature-phosphorescence-of-sodium-alginate
#6
Xueyu Dou, Qing Zhou, Xiaohong Chen, Yeqiang Tan, Xin He, Ping Lu, Kunyan Sui, Ben Zhong Tang, Yongming Zhang, Wang Zhang Yuan
Nonconventional biomacromolecular luminogens have attracted extensive interests due to their fundamental importance and potential applications in diverse areas. To explore novel luminogens and moreover to gain deeper insights into their emission mechanism, we study the emission behaviors of sodium alginate (SA), a natural anionic polysaccharide composed of mannuronic (M) and guluronic acids (G). We find that the luminescence from aqueous SA solutions exhibits distinct concentration enhanced emission and aggregation-induced emission (AIE) characteristics...
March 20, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29548080/diffuse-correlation-tomography-in-the-transport-regime-a-theoretical-study-of-the-sensitivity-to-brownian-motion
#7
Ugo Tricoli, Callum M Macdonald, Turgut Durduran, Anabela Da Silva, Vadim A Markel
Diffuse correlation tomography (DCT) uses the electric-field temporal autocorrelation function to measure the mean-square displacement of light-scattering particles in a turbid medium over a given exposure time. The movement of blood particles is here estimated through a Brownian-motion-like model in contrast to ordered motion as in blood flow. The sensitivity kernel relating the measurable field correlation function to the mean-square displacement of the particles can be derived by applying a perturbative analysis to the correlation transport equation (CTE)...
February 2018: Physical Review. E
https://www.readbyqxmd.com/read/29533096/chronic-traumatic-encephalopathy-in-sports-a-historical-and-narrative-review
#8
Gary Solomon
My objectives are to review: 1) a brief history of sport-related concussion (SRC) and chronic traumatic encephalopathy (CTE), 2) the evolution of CTE in American professional football, 3) the data regarding SRC/CTE as they relate to depression and suicide, 4) the data on the neurocognitive effects of subconcussion/repetitive head trauma (with emphases on heading the ball in soccer and early exposure to football), 5) the evidence related to SRC and neurodegenerative diseases, 6) the published studies of CTE, 7) the NINDS neuropathological criteria for CTE, 8) public beliefs about SRC/CTE, and 9) the scientific questions regarding CTE...
March 13, 2018: Developmental Neuropsychology
https://www.readbyqxmd.com/read/29531407/preparing-for-local-labor-curricular-stratification-across-local-economies-in-the-united-states
#9
April Sutton
I investigate how the educational demands of local labor markets shape high school course offerings and student course taking. Using the Education Longitudinal Study of 2002 linked to the U.S. Census 2000, I focus on local economic variation in the share of jobs that do not demand a bachelor's degree. I find that schools in local labor markets with higher concentrations of subbaccalaureate jobs devote a larger share of their course offerings to career and technical education (CTE) courses and a smaller share to advanced college-preparatory courses compared to schools in labor markets with lower concentrations of subbaccalaureate jobs, even net of school resources...
April 2017: Sociology of Education
https://www.readbyqxmd.com/read/29524492/functional-roles-of-c-terminal-extension-cte-of-salt-dependent-peptidase-activity-of-the-natrialba-magadii-extracellular-protease-nep
#10
Alyne Marem, Debora N Okamoto, Lilian C G Oliveira, Diego M Ruiz, Roberto A Paggi, Marcia Y Kondo, Iuri E Gouvea, Maria A Juliano, Rosana E de Castro, Luiz Juliano, Marcelo Y Icimoto
Nep (Natrialba magadii extracellular protease) is a halolysin-like peptidase secreted by the haloalkaliphilic archaeon Natrialba magadii. Many extracellular proteases have been characterized from archaea to bacteria as adapted to hypersaline environments retaining function and stability until 4.0 M NaCl. As observed in other secreted halolysins, this stability can be related to the presence of a C-terminal extension (CTE) sequence. In the present work, we compared the biochemical properties of recombinant Nep protease with the truncated form at the 134 amino acids CTE (Nep∆CTE), that was more active in 4 M NaCl than the non-truncated wild type enzyme...
March 7, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29514146/multiparametric-evaluation-predicts-different-mid-term-outcomes-in-crohn-s-disease
#11
Lucrezia Laterza, Anna Chiara Piscaglia, Laura Maria Minordi, Iolanda Scoleri, Luigi Larosa, Andrea Poscia, Fabio Ingravalle, Arianna Amato, Sergio Alfieri, Alessandro Armuzzi, Giovanni Cammarota, Antonio Gasbarrini, Franco Scaldaferri
AIM: To evaluate if a single and/or combined (clinical, endoscopic and radiological) assessment could predict clinical outcomes in Crohn's disease (CD). METHODS: We prospectively evaluated 57 CD cases who underwent both a colonoscopy and a CT-enterography (CTE). Harvey-Bradshaw Index (HBi), SES-CD (and/or Rutgeerts score) and the radiological disease activity were defined to stratify patients according to clinical, endoscopic and radiological disease activity respectively...
2018: Digestive Diseases
https://www.readbyqxmd.com/read/29489685/small-intestinal-diverticulum-with-bleeding-case-report-and-literature-review
#12
Lifang Zhao, Wei Lu, Yinping Sun, Junrong Liang, Shanshan Feng, Yongquan Shi, Qiong Wu, Jianhong Wang, Kaichun Wu
RATIONALE: Small intestinal diverticulum with bleeding is an important reason for obscure gastrointestinal bleeding (OGB) , in addition to tumor and vascular diseases. Small intestinal diverticulum with bleeding is difficult to detect by barium meal and angiographic methods and has been regarded as an important cause of obscure gastrointestinal tract bleeding in adolescents. Because of its complicated etiology and non-specific clinical manifestations, it is relatively difficult to detect small intestinal diverticulum with bleeding, especially in patients with a large amount of bleeding and hemodynamic instability...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29468152/negative-thermal-expansion-over-a-wide-temperature-range-in-fe-doped-mnnige-composites
#13
Wenjun Zhao, Ying Sun, Yufei Liu, Kewen Shi, Huiqing Lu, Ping Song, Lei Wang, Huimin Han, Xiuliang Yuan, Cong Wang
Fe-doped MnNiGe alloys were successfully synthesized by solid-state reaction. Giant negative thermal expansion (NTE) behaviors with the coefficients of thermal expansion (CTE) of -285.23 × 10-6 K-1 (192-305 K) and -1167.09 × 10-6 K-1 (246-305 K) have been obtained in Mn0.90 Fe0.10 NiGe and MnNi0.90 Fe0.10 Ge, respectively. Furthermore, these materials were combined with Cu in order to control the NTE properties. The results indicate that the absolute value of CTE gradually decreases with increasing Cu contents...
2018: Frontiers in Chemistry
https://www.readbyqxmd.com/read/29465327/improving-the-translational-potential-of-rodent-models-to-study-the-behavioral-and-pathophysiological-effects-of-repetitive-mild-traumatic-brain-injury
#14
Megan Elizabeth Huibregtse
Chronic traumatic encephalopathy (CTE) is thought to be caused by repetitive head impacts. Consequently, there is a need to develop rodent models to better understand the behavioral and pathophysiological changes of repetitive mild traumatic brain injury (rmTBI) and to determine the link between rmTBI and CTE. This Neuro Forum article reviews recent rodent rmTBI models, comparing the impact methods and outcome measures in terms of translational potential.
February 21, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29458610/warpage-characteristics-and-process-development-of-through-silicon-via-less-interconnection-technology
#15
Wen-Wei Shen, Yu-Min Lin, Sheng-Tsai Wu, Chia-Hsin Lee, Shin-Yi Huang, Hsiang-Hung Chang, Tao-Chih Chang, Kuan-Neng Chen
In this study, through silicon via (TSV)-less interconnection using the fan-out wafer-level-packaging (FO-WLP) technology and a novel redistribution layer (RDL)-first wafer level packaging are investigated. Since warpage of molded wafer is a critical issue and needs to be optimized for process integration, the evaluation of the warpage issue on a 12-inch wafer using finite element analysis (FEA) at various parameters is presented. Related parameters include geometric dimension (such as chip size, chip number, chip thickness, and mold thickness), materials' selection and structure optimization...
August 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29430480/further-characterization-of-changes-in-axial-strain-elastograms-due-to-the-presence-of-slippery-tumor-boundaries
#16
Christopher Uff, Leo Garcia, Jeremie Fromageau, Aabir Chakraborty, Neil Dorward, Jeffrey Bamber
Elastography measures tissue strain, which can be interpreted under certain simplifying assumptions to be representative of the underlying stiffness distribution. This is useful in cancer diagnosis where tumors tend to have a different stiffness to healthy tissue and has also shown potential to provide indication of the degree of bonding at tumor-tissue boundaries, which is clinically useful because of its dependence on tumor pathology. We consider the changes in axial strain for the case of a symmetrical model undergoing uniaxial compression, studied by characterizing changes in tumor contrast transfer efficiency (CTE), inclusion to background strain contrast and strain contrast generated by slip motion, as a function of Young's modulus contrast and applied strain...
April 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29421973/multimodal-characterization-of-the-late-effects-of-tbi-letbi-a-methodological-overview-of-the-letbi-project
#17
Brian L Edlow, C Dirk Keene, Daniel Perl, Diego Iacono, Rebecca Folkerth, William Stewart, Christine L MacDonald, Jean Augustinack, Ramon Diaz-Arrastia, Camilo Estrada, Elissa Flannery, Wayne Gordon, Tom Grabowski, Kelly Hansen, Jeanne Hoffman, Christopher Kroenke, Eric Larson, Patricia Lee, Azma Mareyam, Jennifer A McNab, Jeanne McPhee, Allison L Moreau, Anne Renz, KatieRose Richmire, Allison Stevens, Cheuk Y Tang, Lee S Tirrell, Emily Trittschuh, Andre van der Kouwe, Ani Varjabedian, Lawrence L Wald, Ona Wu, Anastasia Yendiki, Liza Young, Lilla Zollei, Bruce Fischl, Paul K Crane, Kristen Dams-O'Connor
Epidemiological studies suggest that a single moderate-to-severe traumatic brain injury (TBI) is associated with an increased risk of neurodegenerative disease, including Alzheimer's and Parkinson's disease (AD and PD). Histopathological studies describe complex neurodegenerative pathologies in individuals exposed to single moderate-to-severe TBI or repetitive mild TBI, including chronic traumatic encephalopathy (CTE). However, the clinicopathological links between TBI and post-traumatic neurodegenerative diseases such as AD, PD, and CTE remain poorly understood...
February 8, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29421679/reinforced-carbon-fiber-laminates-with-oriented-carbon-nanotube-epoxy-nanocomposites-magnetic-field-assisted-alignment-and-cryogenic-temperature-mechanical-properties
#18
Yuxin He, Song Yang, Hu Liu, Qian Shao, Qiuyu Chen, Chang Lu, Yuanli Jiang, Chuntai Liu, Zhanhu Guo
The epoxy nanocomposites with ordered multi-walled carbon nanotubes (MWCNTs) were used to influence the micro-cracks resistance of carbon fiber reinforced epoxy (CF/EP) laminate at 77 K, Oxidized MWCNTs functionalized with Fe3O4 (Fe3O4/O-MWCNTs) with good magnetic properties were prepared by co-precipitation method and used to modify epoxy (EP) for cryogenic applications. Fe3O4/O-MWCNTs reinforced carbon fiber epoxy composites were also prepared through vacuum-assisted resin transfer molding (VARTM). The ordered Fe3O4/O-MWCNTs were observed to have effectively improved the mechanical properties of epoxy (EP) matrix at 77 K and reduce the coefficient of thermal expansion (CTE) of EP matrix...
February 3, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29400641/diagnosis-makes-a-difference-perceptions-of-older-persons-with-dementia-symptoms
#19
Jed A Diekfuss, Jessica De Larwelle, Susan H McFadden
Background/Study Context: Employing the stereotype content model and terror management theory, we examined whether stereotypes and feelings about persons with dementia vary depending on the type of dementia diagnosis and purported causes of the dementia. METHODS: Participants were randomly assigned to read one of four vignettes that depicted a man who consulted his doctor because of memory problems. All vignettes described the same symptoms and diagnostic tests, but each of four groups read a different result: all tests normal (Normal); Alzheimer's disease (AD); Wernicke-Korsakoff Syndrome (WKS) associated with alcohol abuse; and chronic traumatic encephalopathy (CTE) associated with head injuries from playing football in high school and college...
March 2018: Experimental Aging Research
https://www.readbyqxmd.com/read/29396300/traumatic-brain-injury-and-alzheimer-s-disease-the-cerebrovascular-link
#20
REVIEW
Jaime Ramos-Cejudo, Thomas Wisniewski, Charles Marmar, Henrik Zetterberg, Kaj Blennow, Mony J de Leon, Silvia Fossati
Traumatic brain injury (TBI) and Alzheimer's disease (AD) are devastating neurological disorders, whose complex relationship is not completely understood. Cerebrovascular pathology, a key element in both conditions, could represent a mechanistic link between Aβ/tau deposition after TBI and the development of post concussive syndrome, dementia and chronic traumatic encephalopathy (CTE). In addition to debilitating acute effects, TBI-induced neurovascular injuries accelerate amyloid β (Aβ) production and perivascular accumulation, arterial stiffness, tau hyperphosphorylation and tau/Aβ-induced blood brain barrier damage, giving rise to a deleterious feed-forward loop...
January 30, 2018: EBioMedicine
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