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https://www.readbyqxmd.com/read/29353317/tumor-suppressor-c-rassf-proteins
#1
REVIEW
Hiroaki Iwasa, Shakhawoat Hossain, Yutaka Hata
Human genome has ten genes that are collectedly called Ras association domain family (RASSF). RASSF is composed of two subclasses, C-RASSF and N-RASSF. Both N-RASSF and C-RASSF encode Ras association domain-containing proteins and are frequently suppressed by DNA hypermethylation in human cancers. However, C-RASSF and N-RASSF are quite different. Six C-RASSF proteins (RASSF1-6) are characterized by a C-terminal coiled-coil motif named Salvador/RASSF/Hippo domain, while four N-RASSF proteins (RASSF7-10) lack it...
January 20, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29352903/isolation-fine-structure-and-morphology-studies-of-galactomannan-from-endosperm-of-gleditsia-japonica-var-delavayi
#2
Mingzhe Sun, Yumeng Li, Tianxin Wang, Yanwei Sun, Xiyuan Xu, Zesheng Zhang
The water-soluble polysaccharides extracted from endosperm of Gleditsia japonica var. delavayi seeds (EGSP) were identified as galactomannan having the M/G ratio of 2.54-2.66 and a weight average molecular weight (Mw) of 1913 kDa. The molecular structure of EGSP was determined by periodate oxidation, Smith degradation, methylation, FTIR and NMR spectroscopy. The main chain is composed of β-1,4-d-mannopyranose and the branches composed of single α-1-d-galactopyranose. We had also established a model to speculate the fine structure of galactomannan molecules and given preliminary results...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29352060/the-100-most-cited-articles-in-the-endovascular-management-of-intracranial-aneurysms
#3
Julian Maingard, Kevin Phan, Yifan Ren, Hong Kuan Kok, Vincent Thijs, Joshua A Hirsch, Michael J Lee, Ronil V Chandra, Duncan Mark Brooks, Hamed Asadi
INTRODUCTION: Endovascular interventions for intracranial aneurysms have evolved substantially over the past several decades. A citation rank list is used to measure the scientific and/or clinical impact of an article. Our objective was to identify and analyze the characteristics of the 100 most cited articles in the field of endovascular therapy for intracranial aneurysms. METHODS: We performed a retrospective bibliometric analysis between July and August 2017...
January 19, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29352057/feasibility-complications-morbidity-and-mortality-results-at-6-months-for-aneurysm-treatment-with-the-flow-re-direction-endoluminal-device-report-of-safe-study
#4
Laurent Pierot, Laurent Spelle, Jérôme Berge, Anne-Christine Januel, Denis Herbreteau, Mohamed Aggour, Michel Piotin, Alessandra Biondi, Xavier Barreau, Charbel Mounayer, Chrisanthi Papagiannaki, Jean-Paul Lejeune, Jean-Yves Gauvrit, Vincent Costalat
BACKGROUND AND PURPOSE: Flow diverters are increasingly used for the treatment of intracranial aneurysms. Evaluation of the first devices available for clinical use showed high efficacy of this treatment although safety results were worse compared with coiling or balloon-assisted coiling. The Safety and Efficacy Analysis of FRED Embolic Device in Aneurysm Treatment (SAFE) trial is a single-arm, multicenter, prospective study conducted to precisely analyze the safety and efficacy of the FRED and FRED Jr devices...
January 19, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29351942/abnormal-deep-dorsal-vein-resulting-in-veno-occlusive-erectile-dysfunction
#5
Marcus Hallerstrom, Conrad Brice von Stempel, Amr Raheem, Miles Walkden
A 59-year-old man with a 6-year history of erectile dysfunction presented to the andrology outpatient clinic. Multimodality assessment with ultrasound, MRI venography and fluoroscopic venography demonstrated an aberrant emissary vein arising from the corporal bodies causing venogenic erectile dysfunction. Selective coil embolisation of the collateral vein resulted in an almost immediate and sustained improvement in his erections.
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29351931/stent-assisted-coil-embolization-on-down-the-barrel-view-with-spring-shaped-microcatheter-in-patient-with-m1-ultrawide-necked-circumferential-aneurysm
#6
Hyo Sung Kwak, Jung Soo Park, Eun Jeong Koh
Herein, we describe a technique for stent-assisted coil embolization with a spring-shaped microcatheter in a patient with an M1 ultrawide-necked circumferential aneurysm in the middle cerebral artery (MCA). A 49-year-old man was referred for treatment of an incidentally detected M1 large-circumference aneurysm on magnetic resonance angiography. Subsequent digital subtraction angiography revealed an 18.2×16.5 mm ultrawide-necked circumferential aneurysm on the distal M1 portion of the left MCA, and we planned stent-assisted coil embolization using a spring-shaped microcatheter...
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29351885/repetitive-tms-to-augment-cognitive-processing-therapy-in-combat-veterans-of-recent-conflicts-with-ptsd-a-randomized-clinical-trial
#7
F Andrew Kozel, Michael A Motes, Nyaz Didehbani, Bambi DeLaRosa, Christina Bass, Caitlin D Schraufnagel, Penelope Jones, Cassie Rae Morgan, Jeffrey S Spence, Michael A Kraut, John Hart
BACKGROUND: The objective was to test whether repetitive Transcranial Magnetic Stimulation (rTMS) just prior to Cognitive Processing Therapy (CPT) would significantly improve the clinical outcome compared to sham rTMS prior to CPT in veterans with PTSD. METHODS: Veterans 18-60 years of age with current combat-related PTSD symptoms were randomized, using a 1:1 ratio in a parallel design, to active (rTMS+CPT) versus sham (sham+CPT) rTMS just prior to weekly CPT for 12-15 sessions...
December 28, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29351720/structural-interconversion-in-alzheimer-s-amyloid-%C3%AE-16-35-peptide-in-an-aqueous-solution
#8
Nelson Alves, Rafael B Frigori
Structural properties of Aβ(16-35) fragment are investigated as a model for the amyloid-β peptide excluding its coil-inducing terminals. Our Replica-Exchange Molecular Dynamics simulations using all-atoms and explicit aqueous solvation widely reduce any structural bias. The principal folding pathway shows direct conversion of coil to β-sheet, without the long proposed helix intermediates. Our PCA analysis indicates that the fragment is also intrinsically disordered, as the full amyloid-β peptide. Thus, the observed folding mechanism lacks free-energy barriers and any peaks in the thermal capacity...
January 19, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29351320/coiled-coil-formation-of-the-membrane-fusion-k-e-peptides-viewed-by-electron-paramagnetic-resonance
#9
Pravin Kumar, Martin van Son, Tingting Zheng, Dayenne Valdink, Jan Raap, Alexander Kros, Martina Huber
The interaction of the complementary K (Ac-(KIAALKE)3-GW-NH2) and E (Ac-(EIAALEK)3-GY-NH2) peptides, components of the zipper of an artificial membrane fusion system (Robson Marsden H. et al. Angew Chemie Int Ed. 2009) is investigated by electron paramagnetic resonance (EPR). By frozen solution continuous-wave EPR and double electron-electron resonance (DEER), the distance between spin labels attached to the K- and to the E-peptide is measured. Three constructs of spin-labelled K- and E-peptides are used in five combinations for low temperature investigations...
2018: PloS One
https://www.readbyqxmd.com/read/29350605/in-situ-administration-of-abciximab-for-thrombus-resolution-during-intracranial-bypass-surgery-case-report
#10
Ian A Buchanan, Brian Lee, Arun P Amar, Steven L Giannotta
Abciximab is a glycoprotein IIb/IIIa receptor antagonist that functions to prevent platelet aggregation, thus reducing thrombus initiation and propagation. It has been widely used during percutaneous endovascular interventions, such as aneurysm coil embolization, angioplasty, atherectomy, and stent placement, as both a preventative and a salvage therapy. The use of abciximab in cardiac and neurosurgical procedures has been associated with a reduced incidence of ischemic complications and a decreased need for repeated intervention...
January 19, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29350091/stent-assisted-coiling-of-cerebral-aneurysms-with-the-neuroform-atlas-stent
#11
Ferdi Cay, Ahmet Peker, Anıl Arat
Objectives The Neuroform Atlas stent (AS) is the smallest intracranial stent with an open-cell design. This study reports the first clinical experience with AS. Methods All intracranial aneurysms treated by stent-assisted coiling using a single AS in a single institution were retrospectively evaluated. Patient demographics, aneurysm characteristics, angles between the parent artery and stented branch, technical success, and clinical and angiographic follow-up were analyzed. Results Fifty-five consecutive aneurysms treated with AS-assisted coiling were included...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29349490/auto-aggregation-properties-of-a-novel-aerobic-denitrifier-enterobacter-sp-strain-fl
#12
Xia Wang, Qiang An, Bin Zhao, Jin Song Guo, Yuan Sheng Huang, Meng Tian
Enterobacter sp. strain FL was newly isolated from activated sludge and exhibited significant capability of auto-aggregation as well as aerobic denitrification. The removal efficiencies of NO3--N, total nitrogen (TN), and TOC by strain FL in batch culture reached 94.6, 63.9, and 72.5% in 24 h, respectively. The production of N2O and N2 in the presence of oxygen demonstrated the occurrence of aerobic denitrification. The auto-aggregation index of strain FL reached 54.3%, suggesting a high tendency that the cells would agglomerate into aggregates...
January 18, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29349438/idiopathic-internal-mammary-artery-aneurysm-in-the-setting-of-aberrant-right-subclavian-artery
#13
Tariq Almerey, Ricardo Paz-Fumagalli, Houssam Farres, Warner A Oldenburg, Albert G Hakaim
Aneurysms of the internal mammary artery are extremely rare. Immediate treatment is necessary because of the high risk of rupture that can be life-threatening. Here we describe a case of idiopathic internal mammary artery aneurysm in a 54-year-old woman in the setting of aberrant right subclavian artery. The aneurysm was successfully treated with coil embolization without complications.
December 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29349435/emergency-endovascular-coiling-of-a-ruptured-giant-splenic-artery-aneurysm
#14
Erika Wernheden, Anne-Sofie Brenøe, Saeid Shahidi
Splenic artery aneurysms (SAAs) are the third most common abdominal aneurysm. Endovascular treatment of SAAs is preferred, and coiling is the most commonly used technique. Ruptured giant (>5 cm) SAAs are usually treated with open surgery including splenectomy. We present a rare case of a ruptured 15-cm giant SAA in an 84-year-old woman treated successfully with emergency endovascular coiling. To our knowledge, this is one of the few reports of emergency endovascular treatment for ruptured giant SAA.
December 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29349428/hybrid-repair-of-a-large-pseudoaneurysm-of-the-proximal-right-subclavian-artery-in-a-marfan-patient
#15
Emma van der Weijde, Jan Albert Vos, Robin H Heijmen
A pseudoaneurysm of the proximal right subclavian artery is rare and most commonly caused by penetrating or blunt trauma. We report a case of a Marfan patient with a large iatrogenic pseudoaneurysm of the right subclavian artery, induced by a puncture lesion during central venous catheter placement for an elective endovascular thoracic aortic procedure. The patient was successfully treated with a hybrid approach, which consisted of endovascular coiling and balloon occlusion of the adjacent vessels, followed by open surgical exploration and uneventful closure of the puncture hole with the use of bovine pericardium-reinforced sutures...
December 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29348045/supplementary-motor-area-primary-motor-cortex-facilitation-in-younger-but-not-older-adults
#16
Peta E Green, Michael C Ridding, Keith D Hill, John G Semmler, Peter D Drummond, Ann-Maree Vallence
Growing evidence implicates a decline in white matter integrity in the age-related decline in motor control. Functional neuroimaging studies show significant associations between functional connectivity in the cortical motor network, including the supplementary motor area (SMA), and motor performance. Dual-coil transcranial magnetic stimulation studies show facilitatory connections between SMA and the primary motor cortex (M1) in younger adults. Here, we investigated whether SMA-M1 facilitation is affected by age and whether the strength of SMA-M1 facilitation is associated with bilateral motor control...
December 29, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29347429/collapse-transition-in-polymer-models-with-multiple-monomers-per-site-and-multiple-bonds-per-edge
#17
Nathann T Rodrigues, Tiago J Oliveira
We present results from extensive Monte Carlo simulations of polymer models where each lattice site can be visited by up to K monomers and no restriction is imposed on the number of bonds on each lattice edge. These multiple monomer per site (MMS) models are investigated on the square and cubic lattices, for K=2 and 3, by associating Boltzmann weights ω_{0}=1, ω_{1}=e^{β_{1}}, and ω_{2}=e^{β_{2}} to sites visited by 1, 2, and 3 monomers, respectively. Two versions of the MMS models are considered for which immediate reversals of the walks are allowed (RA) or forbidden (RF)...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346724/structural-and-biophysical-characterization-of-human-extl3-domain-organisation-glycosylation-and-solution-structure
#18
Wael Awad, Sven Kjellstrom, Gabriel Svensson Birkedal, Katrin Mani, Derek Thomas Logan
Heparan sulfate proteoglycans are proteins substituted with one or more heparan sulfate (HS) polysaccharides, found in abundance at cell surfaces. HS chains influence the activity of many biologically important molecules involved in cellular communication and signaling. The exostosin (EXT) proteins are glycosyltransferases in the Golgi apparatus that assemble HS chains on HSPGs. The EXTL3 enzyme mainly works as an initiator in HS biosynthesis. In this work, human lumenal N-glycosylated EXTL3 (EXTL3ΔN) was cloned, expressed in human embryonic kidney cells and purified...
January 18, 2018: Biochemistry
https://www.readbyqxmd.com/read/29345991/collapse-transitions-of-proteins-and-the-interplay-among-backbone-sidechain-and-solvent-interactions
#19
Alex S Holehouse, Rohit V Pappu
Proteins can collapse into compact globules or form expanded, solvent-accessible, coil-like conformations. Additionally, they can fold into well-defined three-dimensional structures or remain partially or entirely disordered. Recent discoveries have shown that the tendency for proteins to collapse or remain expanded is not intrinsically coupled to their ability to fold. These observations suggest that proteins do not have to form compact globules in aqueous solutions. They can be intrinsically disordered, collapsed, or expanded, and even form well-folded, elongated structures...
January 18, 2018: Annual Review of Biophysics
https://www.readbyqxmd.com/read/29344717/multiple-enlarged-aneurysms-in-primary-racemose-hemangioma-of-the-bronchial-artery-successful-prophylactic-transcatheter-arterial-embolization-using-n-butyl-2-cyanoacrylate-and-coils
#20
Atsushi Saiga, Toshihiko Sugiura, Takashi Higashide, Satoshi Tsuchiya, Akira Nishiyama, Yoshihiro Kubota, Takuro Horikoshi, Takashi Uno
An asymptomatic 48-year-old man presented with multiple aneurysms in a primary racemose hemangioma of the right bronchial artery. Bronchial arteriography revealed a tortuous artery with four fusiform aneurysms of varying sizes and aneurysmal dilatation with marked thrombus formation in the long segment of the distal portion. Because the tip of catheter could not pass beyond the aneurysmal dilatation, we performed balloon-occluded embolization using a mixture of N-butyl-2-cyanoacrylate (NBCA) and iodized oil...
January 17, 2018: Cardiovascular and Interventional Radiology
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