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https://www.readbyqxmd.com/read/27922252/update-on-new-stents-and-protection-devices-for-carotid-artery-stenting-what-we-know-what-we-learnt-recently-and-what-we-need-to-know
#1
Dimitrios N Nikas, Xenofon Makos, Tomoyuki Umemoto, George Liappas, Andrea Pacchioni, Narek Zakarian, Bernhard Reimers
Carotid artery stenting (CAS) is considered an alternative option to carotid endarterectomy (CEA) for significant carotid stenosis, in both symptomatic and asymptomatic patients. Comparing to CEA, CAS offers significant advantages. The most important arise from the minimally invasive nature of the procedure, which reduces the surgical complications and adds significant comfort to the patient, without compromising the efficacy. Nowadays, CAS can achieve acute and long-term outcome results comparable to CEA, maintaining low rates of periprocedural embolic events...
December 6, 2016: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27922202/current-practices-for-screening-consent-and-care-of-related-donors-in-france-haematopoietic-stem-cell-transplantation-coordinator-nurses-perceptions
#2
A Polomeni, C Bompoint, A Gomez, E Brissot, A Ruggeri, R Belhocine, M Mohty
Haematopoietic stem cell transplantation-coordinating nurses (HSCT-CNs) play an important role in informing related donors (RDs) and in organising human leucocyte antigen (HLA) tests, pre-donation workup and stem cells collection. Our pilot study aimed to explore French HSCT-CNs' perceptions of RD care issues. Twenty-nine French HSCT adult units were sent a questionnaire on the subject of donation procedures, HSCT-CNs' data and their professional experience of related donation issues. Twenty-two HSCT-CNs returned a completed questionnaire, and 90% of HSCT units were involved to some degree in both patient and donor care...
December 6, 2016: European Journal of Cancer Care
https://www.readbyqxmd.com/read/27922195/the-neuropeptide-cortistatin-attenuates-experimental-autoimmune-myocarditis-via-inhibition-of-cardiomyogenic-t-cell-driven-inflammatory-responses
#3
Virginia Delgado-Maroto, Clara P Falo, Irene Forte-Lago, Norma Adan, Maria Morell, Elena Maganto-Garcia, Gema Robledo, Francisco O'Valle, Andrew H Lichtman, Elena Gonzalez-Rey, Mario Delgado
BACKGROUND AND PURPOSE: Myocarditis is an inflammatory and autoimmune cardiovascular disease that causes dilated myocardiopathy and is responsible of high morbidity and mortality worldwide. Cortistatin is a neuropeptide produced by neurons and cells of immune and vascular systems. Besides its action in locomotor activity and sleep, cortistatin inhibits inflammation in different experimental models of autoimmune diseases. However, its role in inflammatory cardiovascular disorders is unexplored...
December 6, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27922193/phagocytosis-of-collagen-fibrils-by-fibroblasts-in-vivo-is-independent-of-the-uparap-endo180-receptor
#4
Sara Sprangers, Niels Behrendt, Lars Engelholm, Yixuan Cao, Vincent Everts
As a crucial step in ECM remodeling, collagen degradation occurs through different processes, including both extracellular and intracellular degradation. The extracellular pathways of collagen degradation require secretion of collagenolytic proteases, whereas intracellular collagen degradation occurs in the lysosomal compartment after uptake, involving either pre-cleaved or intact fibrillar collagen. The endocytic collagen receptor uPARAP/Endo180 plays an important role in internalization of large collagen degradation products, whereas its role in the phagocytosis of fibrillar collagen has been debated...
December 6, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27922192/evidence-for-pipecolate-oxidase-in-mediating-protection-against-hydrogen-peroxide-stress
#5
Sathish Kumar Natarajan, Ezhumalai Muthukrishnan, Oleh Khalimonchuk, Justin L Mott, Donald F Becker
Pipecolate, an intermediate of the lysine catabolic pathway, is oxidized to Δ(1) -piperideine-6-carboxylate (P6C) by the flavoenzyme L-pipecolate oxidase (PIPOX). P6C spontaneously hydrolyzes to generate α-aminoadipate semialdehyde, which is then converted into α-aminoadipate acid by α-aminoadipatesemialdehyde dehydrogenase. L-pipecolate was previously reported to protect mammalian cells against oxidative stress. Here, we examined whether PIPOX is involved in the mechanism of pipecolate stress protection...
December 6, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27922189/optimal-arac-cytotoxicity-to-aml-cells-requires-erk5-activity
#6
Ruifang Zheng, George P Studzinski
Cytarabine (AraC) has been the primary treatment agent for Acute Myeloid Leukemia (AML) in the past 30 years, but the precise mechanism of its action is not completely known. Here we assessed the role of ERK5 in AraC-induced cell death in AML cell lines HL60 and U937 using ERK5 inhibitors BIX02189 and XMD8-92. We report that inhibition of MEK5/ERK5 activity reduces AraC-induced cell death, DNA damage, the upregulated DNA damage biomarkers, and produced G2 phase cell cycle arrest. In addition, the pro-survival protein P-Bcl2 Ser70 was found to be associated with decreased AraC-induced cell death following XMD8-92 treatment, suggesting a regulatory role of ERK5 on Bcl2 phosphorylation...
December 6, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27922185/relaxin-family-peptides-structure-activity-relationship-studies
#7
REVIEW
Nitin A Patil, K Johan Rosengren, Frances Separovic, John D Wade, Ross A D Bathgate, Mohammed Akhter Hossain
The human relaxin peptide family consists of seven cystine-rich peptides, four of which are known to signal through relaxin family peptide receptors, RXFP1-4. Considering the vital roles these peptides play in physiology and various diseases, they are of considerable importance for drug discovery and development. Detailed structure-activity relationship (SAR) studies towards understanding the role of important residues in each of these peptides have been reported over the years and utilised for design of antagonists and minimised agonist variants...
December 6, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27922184/europium-iii-and-uranium-vi-complexation-by-natural-organic-matter-nom-effect-of-source
#8
Ralf Kautenburger, Jonas M Sander, Christina Hein
For the safe long-term storage of high level radioactive waste (HLW), detailed information about geo-chemical behavior of radioactive and toxic metal ions under environmental conditions is important. Natural organic matter (NOM) can play a crucial role in the immobilization or mobilization of these metal ions due to its complexation and colloid formation tendency. In this study, the complexation of europium (as chemical homologue of trivalent actinides like americium) and uranium (as main component of HLW) by ten humic acids (HA) from different sources and Suwannee NOM river extract has been analyzed...
December 6, 2016: Electrophoresis
https://www.readbyqxmd.com/read/27922171/connexins-and-pannexins-from-biology-towards-clinical-targets
#9
Paolo Meda, Jacques-Antoine Haefliger
Efficient cell communication is a prerequisite for the coordinated function of tissues and organs. In vertebrates, this communication is mediated by a variety of mechanisms, including the exchange of molecules between cells, and between cells and the extracellular medium, via membrane channels made of connexin and pannexin proteins. These channels are a necessary component of all human tissues. Here, we review the biological essentials of the connexin and pannexin families, and the roles of these proteins in the function of cells which are central to major human diseases...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27922139/are-low-sun-exposure-and-or-vitamin-d-risk-factors-for-type-1-diabetes
#10
K M Miller, P H Hart, N H de Klerk, E A Davis, R M Lucas
The global variation in type 1 diabetes (T1D) incidence rates is one of the most significant observed for any non-communicable disease. Geographical patterns in incidence suggest that low sun exposure may contribute to the wide disparity, with incidence rates generally increasing with distance from the Equator. T1D development is associated with hyperactivity of the adaptive immune system leading to autoimmune destruction of insulin-secreting pancreatic β cells. Both exposure to ultraviolet radiation (UVR) and vitamin D, with their known immunosuppressive effects, have the potential to delay or inhibit the disease...
December 6, 2016: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/27922133/photoluminescence-changes-of-c70-nano-submicro-crystals-induced-by-high-pressure-and-high-temperature
#11
Dedi Liu, Bingbing Liu, Bertil Sundqvist, Dapeng Dong, Zhenghua Li, Dongping Liu
Hollow C70 nano/submicro-crystals with a fcc lattice structure were treated under various high pressure and high temperature conditions. The energy band structure was visibly changed by the high pressure and high temperature treatment, and the luminescence of the treated C70 nano/submicro-crystals were tuned from the visible to the near infrared range. In-situ high pressure experiments at room temperature indicate that pressure plays a key role in the tuning of the band gap and PL properties in C70 nanocrystals, and temperature plays an important role in the formation of stable intermolecular bonds and thus to define the final red-shift of the PL peaks...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922130/the-nmda-receptor-glun2c-subunit-controls-cortical-excitatory-inhibitory-balance-neuronal-oscillations-and-cognitive-function
#12
Subhash C Gupta, Aparna Ravikrishnan, Jinxu Liu, Zhihao Mao, Ratnamala Pavuluri, Brandon G Hillman, Pauravi J Gandhi, Dustin J Stairs, Ming Li, Rajesh R Ugale, Daniel T Monaghan, Shashank M Dravid
Despite strong evidence for NMDA receptor (NMDAR) hypofunction as an underlying factor for cognitive disorders, the precise roles of various NMDAR subtypes remains unknown. The GluN2C-containing NMDARs exhibit unique biophysical properties and expression pattern, and lower expression of GluN2C subunit has been reported in postmortem brains from schizophrenia patients. We found that loss of GluN2C subunit leads to a shift in cortical excitatory-inhibitory balance towards greater inhibition. Specifically, pyramidal neurons in the medial prefrontal cortex (mPFC) of GluN2C knockout mice have reduced mEPSC frequency and dendritic spine density and a contrasting higher frequency of mIPSCs...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922126/viral-and-bacterial-co-infection-in-severe-pneumonia-triggers-innate-immune-responses-and-specifically-enhances-ip-10-a-translational-study
#13
Jonathan Hoffmann, Daniela Machado, Olivier Terrier, Stephane Pouzol, Mélina Messaoudi, Wilma Basualdo, Emilio E Espínola, Rosa M Guillen, Manuel Rosa-Calatrava, Valentina Picot, Thomas Bénet, Hubert Endtz, Graciela Russomando, Gláucia Paranhos-Baccalà
Mixed viral and bacterial infections are widely described in community-acquired pneumonia; however, the clinical implications of co-infection on the associated immunopathology remain poorly studied. In this study, microRNA, mRNA and cytokine/chemokine secretion profiling were investigated for human monocyte-derived macrophages infected in-vitro with Influenza virus A/H1N1 and/or Streptococcus pneumoniae. We observed that the in-vitro co-infection synergistically increased interferon-γ-induced protein-10 (CXCL10, IP-10) expression compared to the singly-infected cells conditions...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922125/an-er%C3%AE-agonist-induces-browning-of-subcutaneous-abdominal-fat-pad-in-obese-female-mice
#14
Yi-Fei Miao, Wen Su, Yu-Bing Dai, Wan-Fu Wu, Bo Huang, Rodrigo P A Barros, Hao Nguyen, Laure Maneix, You-Fei Guan, Margaret Warner, Jan-Åke Gustafsson
Estrogen, via estrogen receptor alpha (ERα), exerts several beneficial effects on metabolism and energy homeostasis by controlling size, enzymatic activity and hormonal content of adipose tissue. The actions of estrogen on sympathetic ganglia, which are key players in the browning process, are less well known. In the present study we show that ERβ influences browning of subcutaneous adipose tissue (SAT) via its actions both on sympathetic ganglia and on the SAT itself. A 3-day-treatment with a selective ERβ agonist, LY3201, induced browning of SAT in 1-year-old obese WT and ERα(-/-) female mice...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922122/identification-of-critical-paralog-groups-with-indispensable-roles-in-the-regulation-of-signaling-flow
#15
Dezso Modos, Johanne Brooks, David Fazekas, Eszter Ari, Tibor Vellai, Peter Csermely, Tamas Korcsmaros, Katalin Lenti
Extensive cross-talk between signaling pathways is required to integrate the myriad of extracellular signal combinations at the cellular level. Gene duplication events may lead to the emergence of novel functions, leaving groups of similar genes - termed paralogs - in the genome. To distinguish critical paralog groups (CPGs) from other paralogs in human signaling networks, we developed a signaling network-based method using cross-talk annotation and tissue-specific signaling flow analysis. 75 CPGs were found with higher degree, betweenness centrality, closeness, and 'bowtieness' when compared to other paralogs or other proteins in the signaling network...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922119/in-situ-particles-reorientation-during-magnetic-hyperthermia-application-shape-matters-twice
#16
Konstantinos Simeonidis, M Puerto Morales, Marzia Marciello, Makis Angelakeris, Patricia de la Presa, Ana Lazaro-Carrillo, Andrea Tabero, Angeles Villanueva, Oksana Chubykalo-Fesenko, David Serantes
Promising advances in nanomedicine such as magnetic hyperthermia rely on a precise control of the nanoparticle performance in the cellular environment. This constitutes a huge research challenge due to difficulties for achieving a remote control within the human body. Here we report on the significant double role of the shape of ellipsoidal magnetic nanoparticles (nanorods) subjected to an external AC magnetic field: first, the heat release is increased due to the additional shape anisotropy; second, the rods dynamically reorientate in the orthogonal direction to the AC field direction...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922115/perilipin-5-fine-tunes-lipid-oxidation-to-metabolic-demand-and-protects-against-lipotoxicity-in-skeletal-muscle
#17
Claire Laurens, Virginie Bourlier, Aline Mairal, Katie Louche, Pierre-Marie Badin, Etienne Mouisel, Alexandra Montagner, André Marette, Angelo Tremblay, John S Weisnagel, Hervé Guillou, Dominique Langin, Denis R Joanisse, Cedric Moro
Lipid droplets (LD) play a central role in lipid homeostasis by controlling transient fatty acid (FA) storage and release from triacylglycerols stores, while preventing high levels of cellular toxic lipids. This crucial function in oxidative tissues is altered in obesity and type 2 diabetes. Perilipin 5 (PLIN5) is a LD protein whose mechanistic and causal link with lipotoxicity and insulin resistance has raised controversies. We investigated here the physiological role of PLIN5 in skeletal muscle upon various metabolic challenges...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922110/%C3%AE-h2ax-53bp1-pkap-1-foci-and-their-linear-tracks-induced-by-in-vitro-exposure-to-radon-and-its-progeny-in-human-peripheral-blood-lymphocytes
#18
Defang Ding, Yaping Zhang, Jing Wang, Xufei Wang, Dunhuang Fan, Linfeng He, Xuxia Zhang, Yun Gao, Qiang Li, Honghong Chen
The biodosimetric information is critical for evaluating the human health hazards caused by radon and its progeny. Here, we demonstrated that the formation of phosphorylated histone variant H2AX (γ-H2AX), p53-binding protein 1 (53BP1) and phosphorylated KRAB-associated protein 1 (pKAP-1) foci and their linear tracks in human peripheral blood lymphocytes (HPBLs) in vitro exposed to radon and its progeny were dependent on the cumulative absorbed dose of radon exposure but was unrelated to the concentration of radon...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922103/hypothalamic-activation-is-essential-for-endotoxemia-induced-acute-muscle-wasting
#19
Kaipeng Duan, Qiyi Chen, Minhua Cheng, Chenyan Zhao, Zhiliang Lin, Shanjun Tan, Fengchan Xi, Tao Gao, Jialiang Shi, Juanhong Shen, Weiqin Li, Wenkui Yu, Jieshou Li, Ning Li
Growing evidence suggests acute skeletal muscle wasting is a key factor affecting nutritional support and prognosis in critical patients. Previously, plenty of studies of muscle wasting focused on the peripheral pathway, little was known about the central role. We tested the hypothesis whether central inflammatory pathway and neuropeptides were involved in the process. In lipopolysaccharide (LPS) treated rats, hypothalamic NF-κB pathway and inflammation were highly activated, which was accompanied with severe muscle wasting...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922098/comparison-of-432-pseudomonas-strains-through-integration-of-genomic-functional-metabolic-and-expression-data
#20
Jasper J Koehorst, Jesse C J van Dam, Ruben G A van Heck, Edoardo Saccenti, Vitor A P Martins Dos Santos, Maria Suarez-Diez, Peter J Schaap
Pseudomonas is a highly versatile genus containing species that can be harmful to humans and plants while others are widely used for bioengineering and bioremediation. We analysed 432 sequenced Pseudomonas strains by integrating results from a large scale functional comparison using protein domains with data from six metabolic models, nearly a thousand transcriptome measurements and four large scale transposon mutagenesis experiments. Through heterogeneous data integration we linked gene essentiality, persistence and expression variability...
December 6, 2016: Scientific Reports
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