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https://www.readbyqxmd.com/read/28447851/-understanding-the-role-of-speech-production-in-reading-evidence-for-a-print-to-speech-neural-network-using-graphical-analysis-correction-to-cummine-et-al-2016
#1
(no author information available yet)
Reports an error in "Understanding the role of speech production in reading: Evidence for a print-to-speech neural network using graphical analysis" by Jacqueline Cummine, Ivor Cribben, Connie Luu, Esther Kim, Reyhaneh Bahktiari, George Georgiou and Carol A. Boliek (Neuropsychology, 2016[May], Vol 30[4], 385-397). In the article, the fifth author's name [Bakhtiari] was misspelled. The online version of this article has been corrected. (The following abstract of the original article appeared in record 2015-49069-001...
May 2017: Neuropsychology
https://www.readbyqxmd.com/read/28441215/does-low-dose-methotrexate-deserve-more-respect-from-clinicians
#2
Brent Luu, George W Rodway
Medical errors associated with low-dose methotrexate may be life-threatening. Prescribers should be cognizant of the medication's toxicities and the persistent challenges in preventing adverse events. This article reviews the properties of methotrexate and its common drug-drug interactions. Best practices from the Institute for Safe Medication Practices, aimed at reducing methotrexate errors, are highlighted.
May 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28438825/beyond-use-dating-of-lidocaine-alone-and-in-two-magic-mouthwash-preparations
#3
Loren Madden Kirk, Stacy D Brown, Yao Luu, Amanda Ogle, Jessica Huffman, Paul O Lewis
PURPOSE: Beyond-use dating (BUD) of lidocaine alone and in two "magic mouthwash" preparations stored in amber oral syringes at room temperature was determined. METHODS: Two formulations of mouthwash containing oral topical lidocaine 2% (viscous), diphenhydramine 2.5 mg/mL, and aluminum hydroxide-magnesium hydroxide-simethicone were prepared in 1:1:1 and 1:2.5:2.5 ratios, divided into 3-mL samples, and stored in unit-dose oral amber syringes. Unit-dose single-product lidocaine samples were also prepared to serve as controls and stored in oral amber syringes...
May 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28430197/g-quadruplex-organic-frameworks
#4
Yi-Lin Wu, Noah E Horwitz, Kan-Sheng Chen, Diego A Gomez-Gualdron, Norman S Luu, Lin Ma, Timothy C Wang, Mark C Hersam, Joseph T Hupp, Omar K Farha, Randall Q Snurr, Michael R Wasielewski
Two-dimensional covalent organic frameworks often π stack into crystalline solids that allow precise spatial positioning of molecular building blocks. Inspired by the hydrogen-bonded G-quadruplexes found frequently in guanine-rich DNA, here we show that this structural motif can be exploited to guide the self-assembly of naphthalene diimide and perylene diimide electron acceptors end-capped with two guanine electron donors into crystalline G-quadruplex-based organic frameworks, wherein the electron donors and acceptors form ordered, segregated π-stacked arrays...
May 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28428825/comprehensive-evaluation-of-genome-wide-5-hydroxymethylcytosine-profiling-approaches-in-human-dna
#5
Ksenia Skvortsova, Elena Zotenko, Phuc-Loi Luu, Cathryn M Gould, Shalima S Nair, Susan J Clark, Clare Stirzaker
BACKGROUND: The discovery that 5-methylcytosine (5mC) can be oxidized to 5-hydroxymethylcytosine (5hmC) by the ten-eleven translocation (TET) proteins has prompted wide interest in the potential role of 5hmC in reshaping the mammalian DNA methylation landscape. The gold-standard bisulphite conversion technologies to study DNA methylation do not distinguish between 5mC and 5hmC. However, new approaches to mapping 5hmC genome-wide have advanced rapidly, although it is unclear how the different methods compare in accurately calling 5hmC...
2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/28424276/thrombin-induced-podocyte-injury-is-protease-activated-receptor-dependent
#6
Ruchika Sharma, Amanda P Waller, Shipra Agrawal, Katelyn J Wolfgang, Hiep Luu, Khurrum Shahzad, Berend Isermann, William E Smoyer, Marvin T Nieman, Bryce A Kerlin
Nephrotic syndrome is characterized by massive proteinuria and injury of specialized glomerular epithelial cells called podocytes. Studies have shown that, whereas low-concentration thrombin may be cytoprotective, higher thrombin concentrations may contribute to podocyte injury. We and others have demonstrated that ex vivo plasma thrombin generation is enhanced during nephrosis, suggesting that thrombin may contribute to nephrotic progression. Moreover, nonspecific thrombin inhibition has been shown to decrease proteinuria in nephrotic animal models...
April 19, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28424264/identification-of-a-multienzyme-complex-for-glucose-metabolism-in-living-cells
#7
Casey L Kohnhorst, Minjoung Kyoung, Miji Jeon, Danielle L Schmitt, Erin L Kennedy, Julio Ramirez, Syrena M Bracey, Bao Tran Luu, Sarah J Russell, Songon An
Sequential metabolic enzymes in glucose metabolism have long been hypothesized to form multienzyme complexes that regulate glucose flux in living cells. However, it has been challenging to directly observe these complexes and their functional roles in living systems. In this work, we have used wide-field and confocal fluorescence microscopy to investigate the spatial organization of metabolic enzymes participating in glucose metabolism in human cells. We provide compelling evidence that human liver-type phosphofructokinase 1 (PFKL), which catalyzes a bottleneck step of glycolysis, forms various sizes of cytoplasmic clusters in human cancer cells, independent of protein expression levels and of the choice of fluorescent tags...
April 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28407387/gigging-benzene
#8
Quang H Luu, Tobias Fiedler, John A Gladysz
Go Aggies! Go Chemikers! The word "gig" applies to a multipronged metal tool for hunting frogs and fish. It constitutes part of a rallying cry, "gig 'em" that inspires Texas A&M Aggies to victory in athletic and academic competitions. This Highlight examines recent victories in the C....._ C cleavage of benzene made possible by a four-pronged iridium gig that yields a "spring-loaded" norbornadiene-like structure with significant ring strain.
April 13, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28404920/noncanonical-wnt-signaling-plays-an-important-role-in-modulating-canonical-wnt-regulated-stemness-proliferation-and-terminal-differentiation-of-hepatic-progenitors
#9
Jiaming Fan, Qiang Wei, Junyi Liao, Yulong Zou, Dongzhe Song, Dongmei Xiong, Chao Ma, Xue Hu, Xiangyang Qu, Liqun Chen, Li Li, Yichun Yu, Xinyi Yu, Zhicai Zhang, Chen Zhao, Zongyue Zeng, Ruyi Zhang, Shujuan Yan, Tingting Wu, Xingye Wu, Yi Shu, Jiayan Lei, Yasha Li, Wenwen Zhang, Rex C Haydon, Hue H Luu, Ailong Huang, Tong-Chuan He, Hua Tang
The liver provides vital metabolic, exocrine and endocrine functions in the body as such pathological conditions of the liver lead to high morbidity and mortality. The liver is highly regenerative and contains facultative stem cells that become activated during injury to replicate to fully recover mass and function. Canonical Wnt/β-catenin signaling plays an important role in regulating the proliferation and differentiation of liver progenitor cells during liver regeneration. However, possible roles of noncanonical Wnts in liver development and regeneration remain undefined...
February 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28394352/spatial-heterogeneity-in-medulloblastoma
#10
A Sorana Morrissy, Florence M G Cavalli, Marc Remke, Vijay Ramaswamy, David J H Shih, Borja L Holgado, Hamza Farooq, Laura K Donovan, Livia Garzia, Sameer Agnihotri, Erin N Kiehna, Eloi Mercier, Chelsea Mayoh, Simon Papillon-Cavanagh, Hamid Nikbakht, Tenzin Gayden, Jonathon Torchia, Daniel Picard, Diana M Merino, Maria Vladoiu, Betty Luu, Xiaochong Wu, Craig Daniels, Stuart Horswell, Yuan Yao Thompson, Volker Hovestadt, Paul A Northcott, David T W Jones, John Peacock, Xin Wang, Stephen C Mack, Jüri Reimand, Steffen Albrecht, Adam M Fontebasso, Nina Thiessen, Yisu Li, Jacqueline E Schein, Darlene Lee, Rebecca Carlsen, Michael Mayo, Kane Tse, Angela Tam, Noreen Dhalla, Adrian Ally, Eric Chuah, Young Cheng, Patrick Plettner, Haiyan I Li, Richard D Corbett, Tina Wong, William Long, James Loukides, Pawel Buczkowicz, Cynthia E Hawkins, Uri Tabori, Brian R Rood, John S Myseros, Roger J Packer, Andrey Korshunov, Peter Lichter, Marcel Kool, Stefan M Pfister, Ulrich Schüller, Peter Dirks, Annie Huang, Eric Bouffet, James T Rutka, Gary D Bader, Charles Swanton, Yusanne Ma, Richard A Moore, Andrew J Mungall, Jacek Majewski, Steven J M Jones, Sunit Das, David Malkin, Nada Jabado, Marco A Marra, Michael D Taylor
Spatial heterogeneity of transcriptional and genetic markers between physically isolated biopsies of a single tumor poses major barriers to the identification of biomarkers and the development of targeted therapies that will be effective against the entire tumor. We analyzed the spatial heterogeneity of multiregional biopsies from 35 patients, using a combination of transcriptomic and genomic profiles. Medulloblastomas (MBs), but not high-grade gliomas (HGGs), demonstrated spatially homogeneous transcriptomes, which allowed for accurate subgrouping of tumors from a single biopsy...
May 2017: Nature Genetics
https://www.readbyqxmd.com/read/28388704/quantitative-analysis-of-the-ellipsoid-zone-intensity-in-phenotypic-variations-of-intermediate-age-related-macular-degeneration
#11
Thomas J Gin, Zhichao Wu, Sky K H Chew, Robyn H Guymer, Chi D Luu
Purpose: Reduction of the ellipsoid zone (EZ) intensity has been reported in eyes with age-related macular degeneration (AMD). This study determined whether overall EZ intensity, in retinal locations undisturbed by pathologic features, is associated with the presence of clinical features, which are known important phenotypic risk factors for disease progression, large drusen, reticular pseudodrusen (RPD), and pigmentary abnormalities. Methods: A horizontal B-scan through the foveola on spectral-domain optical coherence tomography (SD-OCT) was performed in both eyes of 75 participants with bilateral intermediate AMD and 10 age-similar control participants...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28384643/notch-signaling-augments-bmp9-induced-bone-formation-by-promoting-the-osteogenesis-angiogenesis-coupling-process-in-mesenchymal-stem-cells-mscs
#12
Junyi Liao, Qiang Wei, Yulong Zou, Jiaming Fan, Dongzhe Song, Jing Cui, Wenwen Zhang, Yunxiao Zhu, Chao Ma, Xue Hu, Xiangyang Qu, Liqun Chen, Xinyi Yu, Zhicai Zhang, Claire Wang, Chen Zhao, Zongyue Zeng, Ruyi Zhang, Shujuan Yan, Tingting Wu, Xingye Wu, Yi Shu, Jiayan Lei, Yasha Li, Hue H Luu, Michael J Lee, Russell R Reid, Guillermo A Ameer, Jennifer Moriatis Wolf, Tong-Chuan He, Wei Huang
BACKGROUND/AIMS: Mesenchymal stem cells (MSCs) are multipotent progenitors that can differentiate into several lineages including bone. Successful bone formation requires osteogenesis and angiogenesis coupling of MSCs. Here, we investigate if simultaneous activation of BMP9 and Notch signaling yields effective osteogenesis-angiogenesis coupling in MSCs. METHODS: Recently-characterized immortalized mouse adipose-derived progenitors (iMADs) were used as MSC source...
April 4, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28369979/population-pharmacokinetics-of-nusinersen-in-the-cerebral-spinal-fluid-and-plasma-of-pediatric-patients-with-spinal-muscular-atrophy-following-intrathecal-administrations
#13
Kenneth T Luu, Daniel A Norris, Rudy Gunawan, Scott Henry, Richard Geary, Yanfeng Wang
Nusinersen is an antisense oligonucleotide intended for the treatment of spinal muscular atrophy. The pharmacokinetics of nusinersen, following intrathecal administrations, in the cerebrospinal fluid (CSF) and plasma of 72 pediatric patients (3 months to 17 years) with spinal muscular atrophy across 5 clinical trials was analyzed via population-based modeling. With sparse data in the CSF and profile data in the plasma, a linear 4-compartment model simultaneously described the time-concentration profiles in both matrices...
March 29, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28363640/sphingosine-1-phosphate-prevents-egress-of-hematopoietic-stem-cells-from-liver-to-reduce-fibrosis
#14
Andrew King, Diarmaid D Houlihan, Dean Kavanagh, Debashis Haldar, Nguyet Luu, Andrew Owen, Shankar Suresh, Nwe Ni Than, Gary Reynolds, Jasmine Penny, Henry Sumption, Prakash Ramachandran, Neil C Henderson, Neena Kalia, Jon Frampton, David H Adams, Philip N Newsome
BACKGROUND & AIMS: There is growing interest in the use of bone marrow cells to treat liver fibrosis, however little is known about their anti-fibrotic efficacy or the identity of their effector cell(s). Sphingosine-1-phosphate (S1P) mediates egress of immune cells from the lymphoid organs into the lymphatic vessels; we investigated its role in the response of hematopoietic stem cells (HSC) to liver fibrosis in mice. METHODS: Purified (c-kit+/sca1+/lin-) hematopoietic stem cells (HSC) were repeatedly infused into mice undergoing fibrotic liver injury...
March 28, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28362329/bench-top-fabrication-of-an-all-pdms-microfluidic-electrochemical-cell-sensor-integrating-micro-nanostructured-electrodes
#15
Sokunthearath Saem, Yujie Zhu, Helen Luu, Jose Moran-Mirabal
In recent years, efforts in the development of lab-on-a-chip (LoC) devices for point-of-care (PoC) applications have increased to bring affordable, portable, and sensitive diagnostics to the patients' bedside. To reach this goal, research has shifted from using traditional microfabrication methods to more versatile, rapid, and low-cost options. This work focuses on the benchtop fabrication of a highly sensitive, fully transparent, and flexible poly (dimethylsiloxane) (PDMS) microfluidic (μF) electrochemical cell sensor...
March 31, 2017: Sensors
https://www.readbyqxmd.com/read/28351842/minute-myocardial-injury-as-measured-by-high-sensitive-troponin-t-serum-levels-predicts-the-response-to-intracoronary-infusion-of-bone-marrow-derived-mononuclear-cells-in-patients-with-stable-chronic-post-infarction-heart-failure-insights-from-the-topcare-chd
#16
Brigitte Luu, David M Leistner, Eva Herrmann, Florian H Seeger, Joerg Honold, Stephan Fichtlscherer, Andreas M Zeiher, Birgit Assmus
Rationale: Cell-based therapies are a promising option in patients with chronic post-infarction heart failure (ICM). However, the responses following intracoronary infusion of autologous bone marrow-derived mononuclear cells (BMC) are heterogeneous, which may be related to impaired cell retention in patients with ICM. Ischemic injury is associated with upregulation of prototypical chemoattractant cytokines mediating retention and homing of circulating cells. The development of ultrasensitive tests to measure troponin-T serum levels (hs-TnT) revealed the presence of ongoing minute myocardial injury even in patients with stable ICM...
March 28, 2017: Circulation Research
https://www.readbyqxmd.com/read/28325029/noninvasive-eeg-correlates-of-overground-and-stair-walking
#17
Justin A Brantley, Trieu Phat Luu, Recep Ozdemir, Fangshi Zhu, Anna T Winslow, Helen Huang, Jose L Contreras-Vidal
Automated walking intention detection remains a challenge in lower-limb neuroprosthetic systems. Here, we assess the feasibility of extracting motor intent from scalp electroencephalography (EEG). First, we evaluated the corticomuscular coherence between central EEG electrodes (C1, Cz, C2) and muscles of the shank and thigh during walking on level ground and stairs. Second, we trained decoders to predict the linear envelope of the surface electromyogram (EMG). We observed significant EEG-led corticomuscular coupling between electrodes and sEMG (tibialis anterior) in the high delta (3-4 Hz) and low theta (4-5 Hz) frequency bands during level walking, indicating efferent signaling from the cortex to peripheral motor neurons...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324024/thyroid-hormone-receptor-%C3%AE-controls-developmental-timing-and-regulates-the-rate-and-coordination-of-tissue-specific-metamorphosis-in-xenopus-tropicalis
#18
Luan Wen, Yuki Shibata, Dan Su, Liezhen Fu, Nga Luu, Yun-Bo Shi
Thyroid hormone (T3) receptor (TR) mediates the effects of T3 on organ metabolism and animal development. There are two TR genes, TRα and TRβ, in all vertebrates. During animal development, TRα expression is activated earlier than zygotic T3 synthesis and secretion into the plasma, implicating a developmental role of TRα both in the presence and absence of T3. Using T3-dependend amphibian metamorphosis as a model, we have previously proposed a dual functional model for TRs, in particular TRα, during development...
March 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323994/direct-regulation-of-histidine-ammonia-lyase-2-gene-by-thyroid-hormone-in-the-developing-adult-intestinal-stem-cells
#19
Nga Luu, Liezhen Fu, Kenta Fujimoto, Yun-Bo Shi
Most vertebrate organs use adult stem cells to maintain homeostasis and ensure proper repair when damaged. How such organ-specific stem cells are formed during vertebrate development is largely unexplored. We have been using the thyroid hormone (T3)-dependent amphibian metamorphosis to address this issue. Early studies in Xenopus laevis have shown that intestinal remodeling involves complete degeneration of the larval epithelium and de novo formation of adult stem cells through dedifferentiation of some larval epithelial cells...
April 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28320379/mirnas-associated-with-prostate-cancer-risk-and-progression
#20
REVIEW
Hung N Luu, Hui-Yi Lin, Karina Dalsgaard Sørensen, Olorunseun O Ogunwobi, Nagi Kumar, Ganna Chornokur, Catherine Phelan, Dominique Jones, LaCreis Kidd, Jyotsna Batra, Kosj Yamoah, Anders Berglund, Robert J Rounbehler, Mihi Yang, Sang Haak Lee, Nahyeon Kang, Seung Joon Kim, Jong Y Park, Giuliano Di Pietro
Prostate cancer is the most common malignancy among men in the US. Though considerable improvement in the diagnosis of prostate cancer has been achieved in the past decade, predicting disease outcome remains a major clinical challenge. Recent expression profiling studies in prostate cancer suggest microRNAs (miRNAs) may serve as potential biomarkers for prostate cancer risk and disease progression. miRNAs comprise a large family of about 22-nucleotide-long non-protein coding RNAs, regulate gene expression post-transcriptionally and participate in the regulation of numerous cellular processes...
March 20, 2017: BMC Urology
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