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https://www.readbyqxmd.com/read/28433630/loss-of-murc-cavin-4-induces-jnk-and-mmp-9-activity-enhancement-in-vascular-smooth-muscle-cells-and-exacerbates-abdominal-aortic-aneurysm
#1
Kotaro Miyagawa, Takehiro Ogata, Tomomi Ueyama, Takeru Kasahara, Naohiko Nakanishi, Daisuke Naito, Takuya Taniguchi, Tetsuro Hamaoka, Naoki Maruyama, Masahiro Nishi, Taizo Kimura, Hiroyuki Yamada, Hiroki Aoki, Satoaki Matoba
Abdominal aortic aneurysm (AAA) is relatively common in elderly patients with atherosclerosis. MURC (muscle-restricted coiled-coil protein)/Cavin-4 modulating the caveolae function of muscle cells is expressed in cardiomyocytes, skeletal muscle cells and smooth muscle cells. Here, we show a novel functional role of MURC/Cavin-4 in vascular smooth muscle cells (VSMCs) and AAA development. Both wild-type (WT) and MURC/Cavin-4 knockout (MURC(-/-)) mice subjected to periaortic application of CaCl2 developed AAAs...
April 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28433335/treatment-of-peripheral-arterial-disease-via-percutaneous-brachial-artery-access
#2
Randall W Franz, Christopher F Tanga, Joseph W Herrmann
OBJECTIVE: This review was conducted to evaluate the types of endovascular procedures that can be performed via brachial artery access, evaluate the access success rate, and determine the incidence of technical complications. METHODS: A retrospective 10-year record review at a tertiary facility from January 1, 2005, through June 30, 2015, was completed. Patients who underwent attempted brachial artery access were eligible for review. Outcomes intended to be evaluated included ability to access the vessel, reach an identified lesion, and perform an indicated procedure, while describing the incidence and type of complications that occurred to clarify the utility and safety of brachial artery access...
April 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28433076/identification-of-ntrk3-fusions-in-childhood-melanocytic-neoplasms
#3
Lu Wang, Klaus J Busam, Ryma Benayed, Robert Cimera, Jiajing Wang, Ryan Denley, Mamta Rao, Ruth Aryeequaye, Kerry Mullaney, Long Cao, Marc Ladanyi, Meera Hameed
Spitzoid neoplasms are a distinct group of melanocytic tumors. Genetically, they lack mutations in common melanoma-associated oncogenes. Recent studies have shown that spitzoid tumors may contain a variety of kinase fusions, including ROS1, NTRK1, ALK, BRAF, and RET fusions. We report herein the discovery of recurrent NTRK3 gene rearrangements in childhood melanocytic neoplasms with spitzoid and/or atypical features, based on genome-wide copy number analysis by single-nucleotide polymorphism array, which showed intragenic copy number changes in NTRK3...
May 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28432706/varied-pathological-and-therapeutic-response-effects-associated-with-chchd2-mutant-and-risk-variants
#4
Murni Tio, Rujing Wen, Yih Lin Lim, Zul Haikhel Bin Zukifli, Shaoping Xie, Patrick Ho, Zhidong Zhou, Tong-Wey Koh, Yi Zhao, Eng-King Tan
Mutations and polymorphic risk variant of coiled-coil-helix-coiled-coil-helix domain containing 2 (CHCHD2) have been associated with late-onset Parkinson disease. In vivo pathological evidence of CHCHD2 mutations is currently lacking. Utilizing transgenic Drosophila model, we examined the relative pathophysiologic effect of the pathogenic (c.182C>T, p.Thr61Ile and c.434G>A, p.Arg145Gln) and the risk (c.5C>T, p.Pro2Leu) CHCHD2 variants. All the transgenic models exhibited locomotor dysfunction which could be exacerbated by rotenone exposure, dopaminergic neuron degeneration, reduction in lifespan, mitochondrial dysfunction, oxidative stress and impairment in synaptic transmission...
April 21, 2017: Human Mutation
https://www.readbyqxmd.com/read/28432566/four-new-species-of-dactylogyrus-diesing-1850-monogenea-dactylogyridae-parasitising-the-gills-of-northern-moroccan-luciobarbus-heckel-cyprinidae-morphological-and-molecular-characterisation
#5
Imane Rahmouni, Eva Řehulková, Antoine Pariselle, Ouafae Berrada Rkhami, Andrea Šimková
Four new species of Dactylogyrus Diesing, 1850 are described from the gills of three species of Luciobarbus Heckel collected from various hydrographical basins in northern Morocco: Dactylogyrus scorpius n. sp. from Luciobarbus rifensis Doadrio, Casal-Lopez & Yahyaoui; D. benhoussai n. sp. from L. moulouyensis Pellegrin; and D. varius n. sp. and D. falsiphallus n. sp. from L. maghrebensis Doadrio, Perea & Yahyaoui. The descriptions of the new species are confirmed by molecular data (partial 18S rDNA, ITS1, and partial 28S rDNA sequences)...
April 21, 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28432475/a-shinella-%C3%AE-n-acetylglucosaminidase-of-glycoside-hydrolase-family-20-displays-novel-biochemical-and-molecular-characteristics
#6
Junpei Zhou, Zhifeng Song, Rui Zhang, Caihong Chen, Qian Wu, Junjun Li, Xianghua Tang, Bo Xu, Junmei Ding, Nanyu Han, Zunxi Huang
β-N-Acetylglucosaminidases (GlcNAcases) are important for many biological functions and industrial applications. In this study, a glycoside hydrolase family 20 GlcNAcase from Shinella sp. JB10 was expressed in Escherichia coli BL21 (DE3). Compared to many GlcNAcases, the purified recombinant enzyme (rJB10Nag) exhibited a higher specificity activity (538.8 µmol min(-1) mg(-1)) or V max (1030.0 ± 82.1 µmol min(-1) mg(-1)) toward p-nitrophenyl β-N-acetylglucosaminide and N,N'-diacetylchitobiose (specificity activity of 35...
April 21, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/28432357/in-silico-drug-discovery-approach-targeting-receptor-tyrosine-kinase-like-orphan-receptor-1-for-cancer-treatment
#7
Onkar Nath, Archana Singh, Indrakant K Singh
Receptor tyrosine kinases (RTK) are important cell signaling molecules that influence many cellular processes. Receptor tyrosine kinase such as orphan receptor 1 (Ror1), a surface antigen, is a member of the RTK family of Ror, which plays a crucial role in cancers that have high-grade histology. As Ror1 has been implicated to be a potential target for cancer therapy, we selected this protein for further investigation. The secondary and tertiary structure of this protein was determined, which revealed that this protein contained three β-sheets, seven α-helices, and coils...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432000/determination-of-thiol-to-protein-ratio-and-drug-to-antibody-ratio-by-in-line-size-exclusion-chromatography-with-post-column-reaction
#8
Kenichiro Furuki, Toshimasa Toyo'oka
An in-line size-exclusion (SE) ultra-high-performance liquid chromatography (UHPLC)- 5,5-dithio-bis-(2-nitrobenzoic acid) (DTNB) method to quantify thiols in monoclonal antibodies (mAb) when manufacturing antibody-drug conjugates (ADCs) was developed. The mAbs are separated on an SE-UHPLC column and monitored with a UV detector at a wavelength of 280 nm. Eluents are channeled into a reaction coil and mixed with DTNB to form 5-thio-2-nitrobenzoic acid (TNB). Thiol concentration is calculated using absorption at 412 nm...
April 18, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28431946/relationship-between-calorimetric-profiles-and-differential-melting-curves-for-natural-dnas
#9
Chun-Ling Chang, Alexander S Fridman, Roger M Wartell, Chin-Kun Hu, Dmitri Y Lando
Many experiments demonstrate that regions with higher GC-content in natural DNAs unwind at higher temperatures adsorbing more heat than equivalently sized regions with lower GC-content. This simple observation implies that normalized calorimetric melting profiles (calorimetric cDMCs) will not be equivalent differential melting curves (DMCs). We propose simple expressions for long natural and random DNA sequences to reciprocally convert DMCs and corresponding calorimetric cDMCs. The expressions are confirmed by the Poland-Fixman-Freire method and an approach based upon mixtures of homopolymeric duplexes...
April 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28431661/hwang-jh-do-ys-park-kb-chung-hh-park-hs-hyun-d-embolization-of-congenital-renal-arteriovenous-malformations-using-ethanol-and-coil-depending-on-angiographic-types-j-vasc-interv-radiol-2017-28-64-70
#10
(no author information available yet)
No abstract text is available yet for this article.
May 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28431148/truncated-orf1-proteins-can-suppress-line-1-retrotransposition-in-trans
#11
Mark Sokolowski, May Chynces, Dawn deHaro, Claiborne M Christian, Victoria P Belancio
Long interspersed element 1 (L1) is an autonomous non-LTR retroelement that is active in mammalian genomes. Although retrotranspositionally incompetent and functional L1 loci are present in the same genomes, it remains unknown whether non-functional L1s have any trans effect on mobilization of active elements. Using bioinformatic analysis, we identified over a thousand of human L1 loci containing at least one stop codon in their ORF1 sequence. RNAseq analysis confirmed that many of these loci are expressed...
April 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28430966/decreased-thromboembolic-stroke-but-not-atherosclerosis-or-vascular-remodeling-in-mice-with-rock2-deficient-platelets
#12
Nikola Sladojevic, Goo Taeg Oh, Hyung-Hwan Kim, Lea M Beaulieu, Hervé Falet, Karol Kaminski, Jane E Freedman, James K Liao
Aims: Rho-associated coiled-coil containing kinase (ROCK)-2 is an important mediator of the actin cytoskeleton. Because changes in the actin cytoskeleton are critical for platelet function, we hypothesized that ROCK2 in platelets will play important role in thrombosis and can be potentially a target for therapeutic intervention in thromboembolic stroke. Methods and Results: We generated platelet-specific ROCK2-deficient mice (ROCK2 Plt-/- ) from conditional ROCK2 fl°x/fl°x and platelet factor (PF)-4-Cre transgenic mice...
April 14, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28428520/-prevention-of-spinal-cord-ischemia-during-thoracic-endovascular-aortic-repair
#13
Shinya Takahashi, Taijiro Sueda
Spinal cord ischemia(SCI) has been devastating complication of endovascular thoracic and thoracoabdominal aortic repair. Spinal cord blood supply arises from not only segmental artery, subclavian artery, hypogastric artery and these branches, but also perivertebral vasculature and paravertebral muscle and small arterial network, and risk factors of SCI were multifactorial. There are several adjuncts/strategies which are utilized to minimize the incidence of SCI: cerebrospinal fluid drainage, perioperative management of high mean arterial pressure, intraoperative evoked potential monitoring, and staged thoracoabdominal aortic repair...
April 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28428101/all-wired-up-migration-of-endovascular-coils-to-the-common-bile-duct
#14
Juan E Corral, Timothy A Woodward, Frank J Lukens
No abstract text is available yet for this article.
April 17, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28427972/endovascular-treatment-of-complex-distal-posterior-cerebral-artery-aneurysms-with-the-pipeline-embolization-device
#15
Paul Mazaris, Tapan Mehta, Mohammed Hussain, Violiza Inoa, Justin Singer, Gary Spiegel, Inam Kureshi, Martin Ollenschleger
INTRODUCTION: The purpose of our study is to assess the safety and efficacy of the Pipeline Embolization Device (PED) for endovascular treatment of complex, distal posterior cerebral artery (PCA) aneurysms. METHODS: We conducted a retrospective review of patients who underwent endovascular treatment of complex PCA aneurysms with PED from November 2012 to December 2015. A total of 4 patients were identified and treated. 12 month angiographic and clinical follow-up was available for all patients...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28427565/analyzing-the-effect-of-v66m-mutation-in-bdnf-in-causing-mood-disorders-a-computational-approach
#16
P Sneha, D Thirumal Kumar, Sugandhi Saini, Kreeti Kajal, R Magesh, R Siva, C George Priya Doss
Mental disorders or mood disorders are prevalent globally irrespective of region, race, and ethnic groups. Of the types of mood disorders, major depressive disorder (MDD) and bipolar disorder (BPD) are the most prevalent forms of psychiatric condition. A number of preclinical studies emphasize the essential role of brain-derived neurotrophic factor (BDNF) in the pathophysiology of mood disorders. Additionally, BDNF is the most common growth factor in the central nervous system along with their essential role during the neural development and the synaptic elasticity...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28425679/soft-interactions-and-volume-exclusion-by-polymeric-crowders-can-stabilize-or-destabilize-transient-structure-in-disordered-proteins-depending-on-polymer-concentration
#17
Farai I Rusinga, David D Weis
The effects of macromolecular crowding on the transient structure of intrinsically disordered proteins is not well-understood. Crowding by biological molecules inside cells could modulate transient structure and alter IDP function. Volume exclusion theory and observations of structured proteins suggest that IDP transient structure would be stabilized by macromolecular crowding. Amide hydrogen exchange (HX) of IDPs in highly concentrated polymer solutions would provide valuable insights into IDP transient structure under crowded conditions...
April 20, 2017: Proteins
https://www.readbyqxmd.com/read/28424572/functional-sensitivity-of-2d-simultaneous-multi-slice-echo-planar-imaging-effects-of-acceleration-on-g-factor-and-physiological-noise
#18
Nick Todd, Oliver Josephs, Peter Zeidman, Guillaume Flandin, Steen Moeller, Nikolaus Weiskopf
Accelerated data acquisition with simultaneous multi-slice (SMS) imaging for functional MRI studies leads to interacting and opposing effects that influence the sensitivity to blood oxygen level-dependent (BOLD) signal changes. Image signal to noise ratio (SNR) is decreased with higher SMS acceleration factors and shorter repetition times (TR) due to g-factor noise penalties and saturation of longitudinal magnetization. However, the lower image SNR is counteracted by greater statistical power from more samples per unit time and a higher temporal Nyquist frequency that allows for better removal of spurious non-BOLD high frequency signal content...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28424284/a-novel-type-of-polyhedral-viruses-infecting-hyperthermophilic-archaea
#19
Ying Liu, Sonoko Ishino, Yoshizumi Ishino, Gérard Pehau-Arnaudet, Mart Krupovic, David Prangishvili
Encapsidation of genetic material into polyhedral particles is one of the most common structural solutions employed by viruses infecting hosts in all three domains of life. Here, we describe a new virus of hyperthermophilic archaea, Sulfolobus polyhedral virus 1 (SPV1), which condenses its circular double-stranded DNA genome in a manner not previously observed for other known virus. The genome complexed with virion proteins is wound up sinusoidally into a spherical coil which is surrounded by an envelope and further encased by an outer polyhedral capsid apparently composed of the 20 kDa virion protein...
April 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28422092/hierarchical-assembly-of-centriole-subdistal-appendages-via-centrosome-binding-proteins-ccdc120-and-ccdc68
#20
Ning Huang, Yuqing Xia, Donghui Zhang, Song Wang, Yitian Bao, Runsheng He, Junlin Teng, Jianguo Chen
In animal cells, the centrosome is the main microtubule-organizing centre where microtubules are nucleated and anchored. The centriole subdistal appendages (SDAs) are the key structures that anchor microtubules in interphase cells, but the composition and assembly mechanisms of SDAs are not well understood. Here, we reveal that centrosome-binding proteins, coiled-coil domain containing (CCDC) 120 and CCDC68 are two novel SDA components required for hierarchical SDA assembly in human cells. CCDC120 is anchored to SDAs by ODF2 and recruits CEP170 and Ninein to the centrosome through different coiled-coil domains at its N terminus...
April 19, 2017: Nature Communications
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