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https://www.readbyqxmd.com/read/28431186/unfractionated-heparin-versus-low-molecular-weight-heparins-for-avoiding-heparin-induced-thrombocytopenia-in-postoperative-patients
#1
REVIEW
Daniela R Junqueira, Liliane M Zorzela, Edson Perini
BACKGROUND: Heparin-induced thrombocytopenia (HIT) is an adverse drug reaction presenting as a prothrombotic disorder related to antibody-mediated platelet activation. It is a paradoxical immune reaction resulting in thrombin generation in vivo, which leads to a hypercoagulable state and the potential to initiate venous or arterial thrombosis. A number of factors are thought to influence the incidence of HIT including the type and preparation of heparin (unfractionated heparin (UFH) or low molecular weight heparin (LMWH)) and the heparin-exposed patient population, with the postoperative patient population at higher risk...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28430877/the-accessible-chromatin-landscape-during-conversion-of-human-embryonic-stem-cells-to-trophoblast-by-bmp4
#2
Yajun Liu, Dewu Ding, Hongde Liu, Xiao Sun
Human embryonic stem cells (hESC) exposed to the growth factor bone morphogenic protein 4 (BMP4) in the absence of FGF2 have been used as a model to study the development of placental development. However, little is known about the cis-regulatory mechanisms underlying this important process. In this study, we used the public available chromatin accessibility data of hESC H1 cells and BMP4-induced trophoblast (TB)cell lines to identify DNase I hypersensitive sites (DHSs) in the two cell lines, as well as the transcription factor binding sites within the DHSs...
April 18, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28429382/technical-note-direct-measurement-of-clinical-mammographic-x-ray-spectra-using-a-cdte-spectrometer
#3
Josilene C Santos, Alessandra Tomal, Tânia A Furquim, Agnes M F Fausto, Maria S Nogueira, Paulo R Costa
PURPOSE: To introduce and evaluate a method developed for the direct measurement of mammographic x-ray spectra using a CdTe spectrometer. The assembly of a positioning system and the design of a simple and customized alignment device for this application is described. METHODS: A positioning system was developed to easily and accurately locate the CdTe detector in the x-ray beam. Additionally, an alignment device to line up the detector with the central axis of the radiation beam was designed...
April 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/28429190/study-on-environmental-indices-and-heat-tolerance-tests-in-hair-sheep
#4
L Seixas, C B de Melo, A M Menezes, A F Ramos, G R Paludo, V Peripolli, C B Tanure, J B G Costa Junior, C McManus
The ability to predict the effects of climatic factors on animals and their adaptability is important for livestock production. The aim of the present study was to analyze whether existing indices are suitable for evaluating heat stress in Santa Ines and Morada Nova sheep, which are locally adapted hair sheep breeds from northeastern Brazil, and if the limits used to classify thermal stress are suitable for these breeds. Therefore, climatic, physiological, and physical parameters, as well as thermographic images, were collected in 26 sheep, 1 1/2 years old, from two genetic groups (Santa Ines 12 males and 4 females; Morada Nov...
April 20, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28428527/-treatment-strategy-for-complicated-acute-type-b-aortic-dissection-in-the-thoracic-endovascular-aortic-repair-era
#5
Norihisa Karube, Keiji Uchida, Shinichi Suzuki, Munetaka Masuda
Our treatment strategy for acute type B aortic dissection (ABAD) included complicated type is as follows. Indications of thoracic endovascular aortic repair (TEVAR) for ABAD are rupture and organ ischemia, and TEVAR has been the 1st line central repair therapy since January 2009 in our institution. At the time of TEVAR for ruptured communicating type ABAD, we usually seal the proximal entry tear and cover the existing range of hematoma at descending aorta. Procedures for ABAD with malperfusion should be changed according to the patient's condition such as branch vessel obstructions either dynamic type or static type...
April 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28427563/neuroinflammation-in-alzheimer-s-disease-the-preventive-and-therapeutic-potential-of-polyphenolic-nutraceuticals
#6
Yousef Sawikr, Nagendra Sastry Yarla, Ilaria Peluso, Mohammad Amjad Kamal, Gjumrakch Aliev, Anupam Bishayee
Brain inflammation, characterized by increased microglia and astrocyte activation, increases during aging and is a key feature of neurodegenerative diseases, such as Alzheimer's disease (AD). In AD, neuronal death and synaptic impairment, induced by amyloid-β (Aβ) peptide, are at least in part mediated by microglia and astrocyte activation. Glial activation results in the sustained production of proinflammatory cytokines and reactive oxygen species, giving rise to a chronic inflammatory process. Astrocytes are the most abundant glial cells in the central nervous system and are involved in the neuroinflammation...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28427529/primary-central-nervous-system-lymphoma
#7
REVIEW
Giovanni Citterio, Michele Reni, Gemma Gatta, Andrés José Maria Ferreri
Primary CNS lymphomas (PCNSL) represent a subgroup of malignancies with specific characteristics, aggressive course, and unsatisfactory outcome in contrast with other lymphomas comparable for tumour burden and/or histological type. Despite a high chemo- and radiosensitivity, remissions are frequently shortlasting, mainly because the blood brain-barrier limits the access of many drugs to the CNS. Moreover, survivor patients are at high risk of developing severe treatment-related toxicity, mainly disabling neurotoxicity, raising the question of how to balance therapy intensification with side-effects control...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28425261/central-line-associated-blood-stream-infections-characteristics-and-risk-factors-for-mortality-over-a-5-5-year-period
#8
Aynur Atilla, Zahide Doğanay, Hale Kefeli Çelik, Mehmet Derya Demirağ, Sırrı S Kiliç
BACKGROUND/AIM: Central line-associated bloodstream infections (CLABSIs) are associated with substantial morbidity and mortality and the infection rates vary in a wide range1397645907(high: 62.5%; low: 20%) in developing countries. We aimed to investigate the characteristics and the risk factors for mortality in patients with CLABSIs in intensive care units (ICUs) and provide the relevant data. MATERIALS AND METHODS: The electronic medical records database and file records obtained through active surveillance by an infection control committee of a hospital were screened to identify patients with CLABSIs hospitalized from January 2008 through July 2013...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424988/overcoming-chemotherapy-drug-resistance-by-targeting-inhibitors-of-apoptosis-proteins-iaps
#9
REVIEW
Rama Rathore, Jennifer E McCallum, Elizabeth Varghese, Ana-Maria Florea, Dietrich Büsselberg
Inhibitors of apoptosis (IAPs) are a family of proteins that play a significant role in the control of programmed cell death (PCD). PCD is essential to maintain healthy cell turnover within tissue but also to fight disease or infection. Uninhibited, IAPs can suppress apoptosis and promote cell cycle progression. Therefore, it is unsurprising that cancer cells demonstrate significantly elevated expression levels of IAPs, resulting in improved cell survival, enhanced tumor growth and subsequent metastasis. Therapies to target IAPs in cancer has garnered substantial scientific interest and as resistance to anti-cancer agents becomes more prevalent, targeting IAPs has become an increasingly attractive strategy to re-sensitize cancer cells to chemotherapies, antibody based-therapies and TRAIL therapy...
April 19, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28424889/quality-of-life-with-biweekly-docetaxel-and-capecitabine-in-advanced-gastro-oesophageal-cancer
#10
E A Korkeila, T Salminen, R Kallio, M Mikkola, P Auvinen, S Pyrhönen, R Ristamäki
PURPOSE: This study aimed to evaluate the feasibility and tolerability of biweekly docetaxel with capecitabine as first-line treatment in advanced gastro-oesophageal cancer. METHODS: Fifty-three patients at median age of 61 years with advanced gastric cancer were included in this prospective, non-randomized, multicentre phase II trial to receive intravenous docetaxel 50 mg/m(2) on days 1 and 15, and oral capecitabine 1250 mg/m(2) every 12 h, on days 1-7 and 15-21 of each 28-day cycle...
April 20, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28424220/gababr-induced-egfr-transactivation-promotes-migration-of-human-prostate-cancer-cells
#11
Shuai Xia, Cong He, Yini Zhu, Suyun Wang, Huiping Li, Zhongling Zhang, Xinnong Jiang, Jianfeng Liu
G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs) act in concert to regulate cell growth, proliferation, survival, and migration. Metabotropic GABAB receptor (GABABR) is the GPCR for the main inhibitory neurotransmitter GABA in the central nervous system. Increased expression of GABABR has been detected in human cancer tissues and cancer cell lines, but the role of GABABR in these cells is controversial and the underlying mechanism remains poorly understood. Here, we investigated whether GABABR hijacks RTK signaling to modulate the fates of human prostate cancer cells...
April 19, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28423949/intranasal-chitosan-g-hp%C3%AE-cd-nanoparticles-of-efavirenz-for-the-cns-targeting
#12
Aarti Belgamwar, Shagufta Khan, Pramod Yeole
Incompetence of antiretrovirals (ARV) in complete eradication of HIV from the CNS is the biggest issue in neuro-AIDS treatment. The ineffectiveness is largely due to the poor penetration of ARV. Hence, the present study is attempted to enhance the CNS uptake of efavirenz (EFV) by designing intranasal EFV nanoparticles (EFV-NPs). EFV-NPs were fabricated using chitosan-g-HPβCD by ionic gelation method and optimized using quadratic response surface methodology (RSM) employing two-factor, five-level circumscribed central composite design...
April 19, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28423840/discovering-central-practitioners-in-a-medical-discussion-forum-using-semantic-web-analytics
#13
Enayat Rajabi, Syed Sibte Raza Abidi
The aim of this paper is to investigate semantic web based methods to enrich and transform a medical discussion forum in order to perform semantics-driven social network analysis. We use the centrality measures as well as semantic similarity metrics to identify the most influential practitioners within a discussion forum. The centrality results of our approach are in line with centrality measures produced by traditional SNA methods, thus validating the applicability of semantic web based methods for SNA, particularly for analyzing social networks for specialized discussion forums...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28423413/human-perception-of-subresolution-fineness-of-dense-textures-based-on-image-intensity-statistics
#14
Masataka Sawayama, Shin'ya Nishida, Mikio Shinya
We are surrounded by many textures with fine dense structures, such as human hair and fabrics, whose individual elements are often finer than the spatial resolution limit of the visual system or that of a digitized image. Here we show that human observers have an ability to visually estimate subresolution fineness of those textures. We carried out a psychophysical experiment to show that observers could correctly discriminate differences in the fineness of hair-like dense line textures even when the thinnest line element was much finer than the resolution limit of the eye or that of the display...
April 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28422832/two-year-result-of-intravitreal-bevacizumab-for-diabetic-macular-edema-using-treat-and-extend-protocol
#15
Masahiko Sugimoto, Atsushi Ichio, Takayasu Nunome, Mineo Kondo
To determine the efficacy of the treat and extend (TAE) protocol with intravitreal bevacizumab (IVB) for managing diabetic macular edema (DME).Retrospective, single-center study.For this retrospective study, 42 eyes of 42 patients were initially treated with 3 consecutive monthly IVB injections (loading phase), after which they were selected for different additional therapies. For the TAE protocol, the baseline treatment interval was selected to be 8 weeks and was sequentially lengthened by 2 weeks if the central macular thickness (CMT) was <300 μm at 2 consecutive examinations...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28422440/blood-parameters-of-preterm-neonates-postnatal-evolution-according-to-gestational-age
#16
P Roudil, C Vasselon, B Trombert-Paviot, C Berger, H Patural
INTRODUCTION: The blood count provides qualitative and quantitative essential information on bloodlines. Reference hematologic parameters have been established in children and neonates, but few data are available regarding the premature population during the first month of life. The main objective of this study was to establish normative values for blood parameters for premature infants born between 26 and <37 weeks of gestation, during the first month of life, taking into account gestational and postnatal age and treatments that can impact the threshold values...
April 19, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28420995/quantum-dots-sirna-nanoplexes-for-gene-silencing-in-central-nervous-system-tumor-cells
#17
Guimiao Lin, Ting Chen, Jinyun Zou, Yucheng Wang, Xiaomei Wang, Jiefeng Li, Qijun Huang, Zicai Fu, Yingying Zhao, Marie Chia-Mi Lin, Gaixia Xu, Ken-Tye Yong
RNA interfering (RNAi) using short interfering RNA (siRNA) is becoming a promising approach for cancer gene therapy. However, owing to the lack of safe and efficient carriers, the application of RNAi for clinical use is still very limited. In this study, we have developed cadmium sulphoselenide/Zinc sulfide quantum dots (CdSSe/ZnS QDs)-based nanocarriers for in vitro gene delivery. These CdSSe/ZnS QDs are functionalized with polyethyleneimine (PEI) to form stable nanoplex (QD-PEI) and subsequently they are used for siRNA loading which specially targets human telomerase reverse transcriptase (TERT)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28419928/design-synthesis-and-biological-evaluation-of-3-substituted-2-oxindole-hybrid-derivatives-as-novel-anticancer-agents
#18
Romeo Romagnoli, Pier Giovanni Baraldi, Filippo Prencipe, Paola Oliva, Stefania Baraldi, Maria Kimatrai Salvador, Luisa Carlota Lopez-Cara, Roberta Bortolozzi, Elena Mattiuzzo, Giuseppe Basso, Giampietro Viola
The 2-oxindole nucleus is the central core to develop new anticancer agents and its substitution at the 3-position can effect antitumor activity. Utilizing a pharmacophore hybridization approach, a novel series of antiproliferative agents was obtained by the modification of the structure of 3-substituted-2-oxindole pharmacophore by the attachment of the α-bromoacryloyl moiety, acting as a Michael acceptor, at the 5-position of 2-oxindole framework. The impact of the substituent at the 3-position of 2-oxindole core on the potency and selectivity against a panel of seven different cancer cell lines was examined...
April 13, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28419013/standardizing-best-nursing-practice-for-implanted-ports-applying-evidence-based-professional-guidelines-to-prevent-central-line-associated-bloodstream-infections
#19
Susanne B Conley, Paula Buckley, Lisa Magarace, Candace Hsieh, Lillian Vitale Pedulla
Nearly 3 million central vascular access devices (CVADs) are used in the United States each year. These devices are an important advance in health care and essential to oncology patients. However, CVADs are the most frequent cause of central line-associated bloodstream infections (CLABSIs). CLABSI can be prevented when evidence-based practices are followed consistently over time. Professional organizations establish valid standards and guidelines to guide CVAD practice. This article identifies strategies implemented at a comprehensive ambulatory cancer center to integrate professional evidence-based standards and guidelines for implanted port care into nursing practice at the point of care...
May 2017: Journal of Infusion Nursing: the Official Publication of the Infusion Nurses Society
https://www.readbyqxmd.com/read/28418856/low-density-lipoprotein-receptor-related-protein-6-is-a-novel-coreceptor-of-protease-activated-receptor-2-in-the-dynamics-of-cancer-associated-%C3%AE-catenin-stabilization
#20
Jeetendra Kumar Nag, Arun Kancharla, Myriam Maoz, Hagit Turm, Daniel Agranovich, Chhedi Lal Gupta, Beatrice Uziely, Rachel Bar-Shavit
Protease-activated receptor-2 (PAR2) plays a central role in cancer; however, the molecular machinery of PAR2-instigated tumors remains to be elucidated. We show that PAR2 is a potent inducer of β-catenin stabilization, a core process in cancer biology, leading to its transcriptional activity. Novel association of low-density lipoprotein-related protein 6 (LRP6), a known coreceptor of Frizzleds (Fz), with PAR2 takes place following PAR2 activation. The association between PAR2 and LRP6 was demonstrated employing co-immunoprecipitation, bioluminescence resonance energy transfer (BRET), and confocal microscopy analysis...
March 16, 2017: Oncotarget
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