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https://www.readbyqxmd.com/read/28343311/mechanistic-insight-of-platelet-apoptosis-leading-to-non-surgical-bleeding-among-heart-failure-patients-supported-by-continuous-flow-left-ventricular-assist-devices
#1
Nandan K Mondal, Tielou Li, Zengsheng Chen, Hegang H Chen, Erik N Sorensen, Si M Pham, Michael A Sobieski, Steven C Koenig, Mark S Slaughter, Bartley P Griffith, Zhongjun J Wu
Non-surgical bleeding (NSB) is the most common clinical complication in heart failure (HF) patients supported by continuous-flow left ventricular assist devices (CF-LVADs). In this study, oxidative stress and alteration of signal pathways leading to platelet apoptosis were investigated. Thirty-one HF patients supported by CF-LVADs were divided into bleeder (n = 12) and non-bleeder (n = 19) groups. Multiple blood samples were collected at pre-implant (baseline) and weekly up to 1-month post-implant. A single blood sample was collected from healthy subjects (reference)...
March 25, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28340116/platelet-transfusion-reactions-with-respect-to-transfusion-indications-a-single-center-analysis
#2
Alexander Z Feldman, Elizabeth M Staley, Lance A Williams, Huy P Pham
No abstract text is available yet for this article.
March 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28339961/increased-plasma-levels-of-human-neutrophil-peptides-and-complement-activation-markers-in-patients-with-acquired-thrombotic-thrombocytopenic-purpura
#3
Wenjing Cao, Huy P Pham, Lance A Williams, Rance Siniard, Robin Lorenz, Marisa B Marques, X Long Zhen
No abstract text is available yet for this article.
March 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28339879/high-frequency-of-mutations-in-genes-encoding-factor-viii-von-willebrand-factor-and-adamts13-in-skin-cutaneous-melanoma
#4
Zheng Ping, Huy P Pham, Lance A Williams, X Long Zhen
No abstract text is available yet for this article.
March 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28338483/prevalence-and-impact-on-weaning-of-pleural-effusion-at-the-time-of-liberation-from-mechanical-ventilation-a-multicenter-prospective-observational-study
#5
Martin Dres, Damien Roux, Tài Pham, Alexandra Beurton, Jean-Damien Ricard, Muriel Fartoukh, Alexandre Demoule
BACKGROUND: Pleural effusion is frequent in intensive care unit patients, but its impact on the outcome of weaning remains unknown. METHODS: In a prospective study performed in three intensive care units, pleural ultrasound was performed at the first spontaneous breathing trial to detect and quantify pleural effusion (small, moderate, and large). Weaning failure was defined by a failed spontaneous breathing trial and/or extubation requiring any form of ventilatory support within 48 h...
March 24, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28338063/greater-postprandial-glucose-excursions-and-inadequate-nutrient-intake-in-youth-with-type-1-diabetes-and-celiac-disease
#6
Anna Pham-Short, Kim C Donaghue, Geoffrey Ambler, Sarah Garnett, Maria E Craig
The gluten free diet (GFD) has a high glycemic index and low-fiber content, which potentially influences glycemic excursions in type 1 diabetes (T1D) and celiac disease (CD). Participants in this case-control study of youth with T1D+CD (n = 10) and T1D only (n = 7) wore blinded continuous glucose monitoring systems for six days. Blood glucose levels (BGLs) were compared between groups for each meal, including pre-meal, peak, 2-hour postprandial and time-to-peak. Participants consumed a test-breakfast of GF cereal and milk for three days and kept weighed food diaries; nutrient intake was analyzed and compared to national recommendations...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337684/capsule-commentary-on-pham-kanter-et-al-public-awareness-of-and-contact-with-physicians-who-receive-industry-payments-a-national-survey
#7
Susannah L Rose
No abstract text is available yet for this article.
March 23, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28336516/a-novel-role-of-the-dna2-translocase-function-in-dna-break-resection
#8
Adam S Miller, James M Daley, Nhung Tuyet Pham, Hengyao Niu, Xiaoyu Xue, Grzegorz Ira, Patrick Sung
DNA double-strand break repair by homologous recombination entails nucleolytic resection of the 5' strand at break ends. Dna2, a flap endonuclease with 5'-3' helicase activity, is involved in the resection process. The Dna2 helicase activity has been implicated in Okazaki fragment processing during DNA replication but is thought to be dispensable for DNA end resection. Unexpectedly, we found a requirement for the helicase function of Dna2 in end resection in budding yeast cells lacking exonuclease 1. Biochemical analysis reveals that ATP hydrolysis-fueled translocation of Dna2 on ssDNA facilitates 5' flap cleavage near a single-strand-double strand junction while attenuating 3' flap incision...
March 23, 2017: Genes & Development
https://www.readbyqxmd.com/read/28336153/quantification-and-comparison-of-the-mechanical-properties-of-four-human-cardiac-valves
#9
Thuy Pham, Fatiesa Sulejmani, Erica Shin, Di Wang, Wei Sun
OBJECTIVE: Although having the same ability to permit unidirectional flow within the heart, the four main valves-the mitral valve (MV), aortic (AV), tricuspid (TV) and pulmonary (PV) valves-experience different loading conditions; thus, they exhibit different structural integrity from one another. Most research on heart valve mechanics have been conducted mainly on MV and AV or an individual valve, but none quantify and compare the mechanical and structural properties among the four valves from the same aged patient population whose death was unrelated to cardiovascular disease...
March 20, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28335561/optimal-power-allocation-of-relay-sensor-node-capable-of-energy-harvesting-in-cooperative-cognitive-radio-network
#10
Pham Ngoc Son, Dongsoo Har, Nam Ik Cho, Hyung Yun Kong
A cooperative cognitive radio scheme exploiting primary signals for energy harvesting is proposed. The relay sensor node denoted as the secondary transmitter (ST) harvests energy from the primary signal transmitted from the primary transmitter, and then uses it to transmit power superposed codes of the secrecy signal of the secondary network (SN) and of the primary signal of the primary network (PN). The harvested energy is split into two parts according to a power splitting ratio, one for decoding the primary signal and the other for charging the battery...
March 21, 2017: Sensors
https://www.readbyqxmd.com/read/28335435/spirobifluorene-core-based-novel-hole-transporting-materials-for-red-phosphorescence-oleds
#11
Ramanaskanda Braveenth, Hyeong Woo Bae, Quynh Pham Bao Nguyen, Haye Min Ko, Choong Hun Lee, Hyeong Jun Kim, Jang Hyuk Kwon, Kyu Yun Chai
Two new hole transporting materials, named HTM 1A and HTM 1B, were designed and synthesized in significant yields using the well-known Buchwald Hartwig and Suzuki cross- coupling reactions. Both materials showed higher decomposition temperatures (over 450 °C) at 5% weight reduction and HTM 1B exhibited a higher glass transition temperature of 180 °C. Red phosphorescence-based OLED devices were fabricated to analyze the device performances compared to Spiro-NPB and NPB as reference hole transporting materials...
March 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335304/silver-nanoparticle-embedded-thin-silica-coated-graphene-oxide-as-an-sers-substrate
#12
Xuan-Hung Pham, Eunil Hahm, Hyung-Mo Kim, Seongbo Shim, Tae Han Kim, Dae Hong Jeong, Yoon-Sik Lee, Bong-Hyun Jun
A hybrid of Ag nanoparticle (NP)-embedded thin silica-coated graphene oxide (GO@SiO₂@Ag NPs) was prepared as a surface-enhanced Raman scattering (SERS) substrate. A 6 nm layer of silica was successfully coated on the surface of GO by the physical adsorption of sodium silicate, followed by the hydrolysis of 3-mercaptopropyl trimethoxysilane. Ag NPs were introduced onto the thin silica-coated graphene oxide by the reduction of Ag⁺ to prepare GO@SiO₂@Ag NPs. The GO@SiO₂@Ag NPs exhibited a 1.8-fold enhanced Raman signal compared to GO without a silica coating...
September 22, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334947/protocadherin-19-pcdh19-interacts-with-paraspeckle-protein-nono-to-co-regulate-gene-expression-with-estrogen-receptor-alpha-er%C3%AE
#13
Duyen H Pham, Chuan Tan, Claire C Homan, Kristy Kolc, Mark Corbett, Dale McAninch, Archa Fox, Paul Thomas, Raman Kumar, Jozef Gecz
De novo and inherited mutations of X-chromosome cell adhesion molecule protocadherin 19 (PCDH19) cause frequent, highly variable epilepsy, autism, cognitive decline and behavioural problems syndrome. Intriguingly, hemizygous null males are not affected while heterozygous females are, contradicting established X-chromosome inheritance. The disease mechanism is not known. Cellular mosaicism is the likely driver. We have identified p54nrb/NONO, a multifunctional nuclear paraspeckle protein with known roles in nuclear hormone receptor gene regulation, as a PCDH19 protein interacting partner...
March 17, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28333021/a-phase-1-2-trial-of-a-combination-of-paclitaxel-and-trastuzumab-with-daily-irradiation-or-paclitaxel-alone-with-daily-irradiation-after-transurethral-surgery-for-noncystectomy-candidates-with-muscle-invasive-bladder-cancer-trial-nrg-oncology-rtog-0524
#14
M Dror Michaelson, Chen Hu, Huong T Pham, Douglas M Dahl, Chin Lee-Wu, Gregory P Swanson, Jacqueline Vuky, R Jeffrey Lee, Luis Souhami, Brian Chang, Asha George, Howard Sandler, William Shipley
PURPOSE: Bladder preservation therapy is an effective treatment for muscle-invasive urothelial carcinoma (UC). In this study we treated noncystectomy candidates with daily radiation and weekly paclitaxel for 7 weeks. Patients whose tumors showed her2/neu overexpression were additionally treated with weekly trastuzumab. METHODS AND MATERIALS: Sixty-eight evaluable patients were treated with radiation therapy and either paclitaxel + trastuzumab (group 1) or paclitaxel alone (group 2)...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28332769/oleanane-type-saponins-from-glochidion-hirsutum-and-their-cytotoxic-activities
#15
Nguyen Van Thang, Vu Kim Thu, Nguyen Xuan Nhiem, Duong Thi Dung, Tran Hong Quang, Bui Huu Tai, Hoang Le Tuan Anh, Pham Hai Yen, Nguyen Thi Thanh Ngan, Nguyen Huy Hoang, Phan Van Kiem
Five new oleanane-type saponins, hirsutosides A-E, were isolated from the leaves of Glochidion hirsutum (Roxb.) Voigt. Their structures were elucidated as 21β-benzoyloxy-3β,16β,23,28-tetrahydroxyolean-12-ene 3-O-β-D-glucopyranoside (1), 21β-benzoyloxy-3β,16β,23,28-tetrahydroxyolean-12-ene 3-O-β-D-glucopyranosyl-(1→3)-β-D-glucopyranoside (2), 21β-benzoyloxy-3β,16β,23,28-tetrahydroxyolean-12-ene 3-O-6-acetyl-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranoside (3), 21β-benzoyloxy-3β,16β,23,28-tetrahydroxyolean-12-ene 3-O-β-D-glucopyranosyl-(1→3)-α-L-arabinopyranoside (4), and 21β-benzoyloxy-3β,16β,23-trihydroxyolean-12-ene-28-al 3-O-β-D-glucopyranosyl-(1→3)-α-L-arabinopyranoside (5)...
March 23, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28332438/quantitative-structure-activity-relationship-analysis-and-virtual-screening-studies-for-identifying-hdac2-inhibitors-from-known-hdac-bioactive-chemical-libraries
#16
H Pham-The, G Casañola-Martin, K Diéguez-Santana, N Nguyen-Hai, N T Ngoc, L Vu-Duc, H Le-Thi-Thu
Histone deacetylases (HDAC) are emerging as promising targets in cancer, neuronal diseases and immune disorders. Computational modelling approaches have been widely applied for the virtual screening and rational design of novel HDAC inhibitors. In this study, different machine learning (ML) techniques were applied for the development of models that accurately discriminate HDAC2 inhibitors form non-inhibitors. The obtained models showed encouraging results, with the global accuracy in the external set ranging from 0...
March 2017: SAR and QSAR in Environmental Research
https://www.readbyqxmd.com/read/28331062/hypoxia-inducible-factor-1%C3%AE-activation-improves-renal-oxygenation-and-mitochondrial-function-in-early-chronic-kidney-disease
#17
Joanna L Thomas, Hai Pham, Ying Li, Elanore Hall, Guy A Perkins, Sameh S Ali, Hemal H Patel, Prabhleen Singh
Pathophysiology of chronic kidney disease (CKD) is driven by alterations in surviving nephrons to sustain renal function with ongoing nephron loss. Oxygen supply-demand mismatch, due to hemodynamic adaptations, with resultant hypoxia, plays an important role in the pathophysiology in early CKD. We sought to investigate the underlying mechanisms of this mismatch. We utilized the subtotal nephrectomy (STN) model of CKD to investigate the alterations in renal oxygenation linked to sodium (Na) transport and mitochondrial function in the surviving nephrons...
March 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28329682/the-swi-snf-protein-pbrm1-restrains-vhl-loss-driven-clear-cell-renal-cell-carcinoma
#18
Amrita M Nargund, Can G Pham, Yiyu Dong, Patricia I Wang, Hatice U Osmangeyoglu, Yuchen Xie, Omer Aras, Song Han, Toshinao Oyama, Shugaku Takeda, Chelsea E Ray, Zhenghong Dong, Mathieu Berge, A Ari Hakimi, Sebastien Monette, Carl L Lekaye, Jason A Koutcher, Christina S Leslie, Chad J Creighton, Nils Weinhold, William Lee, Satish K Tickoo, Zhong Wang, Emily H Cheng, James J Hsieh
PBRM1 is the second most commonly mutated gene after VHL in clear cell renal cell carcinoma (ccRCC). However, the biological consequences of PBRM1 mutations for kidney tumorigenesis are unknown. Here, we find that kidney-specific deletion of Vhl and Pbrm1, but not either gene alone, results in bilateral, multifocal, transplantable clear cell kidney cancers. PBRM1 loss amplified the transcriptional outputs of HIF1 and STAT3 incurred by Vhl deficiency. Analysis of mouse and human ccRCC revealed convergence on mTOR activation, representing the third driver event after genetic inactivation of VHL and PBRM1...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28329476/pregnancy-associated-morphea-a-case-report-and-literature-review
#19
Anh Khoa Pham, Bhaskar Srivastava, April Deng
Morphea, also known as localized scleroderma, is arare fibrosing disorder of the skin, the pathogenesisof which is incompletely understood. It is thought,however, to involve interplay of genetic dispositionand triggering environmental factors, such asinfections and autoimmunity. Pregnancy as a potentialtrigger has only been reported in four cases. Herein,we present a patient who developed morphea of thebreasts during pregnancy, which rapidly resolvedwith a normal delivery. Our patient was distinct fromsome of the reported patients because her conditionwas tightly correlated with her pregnancy, as judgingby rapid resolution after delivery...
January 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328992/prediction-based-association-control-scheme-in-dense-femtocell-networks
#20
Nak Woon Sung, Ngoc-Thai Pham, Thong Huynh, Won-Joo Hwang, Ilsun You, Kim-Kwang Raymond Choo
The deployment of large number of femtocell base stations allows us to extend the coverage and efficiently utilize resources in a low cost manner. However, the small cell size of femtocell networks can result in frequent handovers to the mobile user, and consequently throughput degradation. Thus, in this paper, we propose predictive association control schemes to improve the system's effective throughput. Our design focuses on reducing handover frequency without impacting on throughput. The proposed schemes determine handover decisions that contribute most to the network throughput and are proper for distributed implementations...
2017: PloS One
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