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https://www.readbyqxmd.com/read/27905601/an-atlas-of-endohedral-sc2s-cluster-fullerenes
#1
Li-Hua Gan, Rui Wu, Jian-Lei Tian, Patrick W Fowler
Structural identification is a difficult task in the study of metallofullerenes, but understanding of the mechanism of formation of these structures is a pre-requisite for new high-yield synthetic methods. Here, systematic density functional theory calculations demonstrate that metal sulfide fullerenes Sc2S@Cn have similar cage geometries from C70 to C84 and form a close-knit family of structures related by Endo-Kroto insertion/extrusion of C2 units and Stone-Wales isomerization transformations. The stabilities predicted for favoured isomers by DFT calculations are in good agreement with available experimental observations, have implications for the formation of metallofullerenes, and will aid structural identification from within the combinatorially vast pool of conceivable isomers...
December 1, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27905529/efficient-targeted-mutagenesis-of-rice-and-tobacco-genomes-using-cpf1-from-francisella-novicida
#2
Akira Endo, Mikami Masafumi, Hidetaka Kaya, Seiichi Toki
CRISPR/Cas9 systems are nowadays applied extensively to effect genome editing in various organisms including plants. CRISPR from Prevotella and Francisella 1 (Cpf1) is a newly characterized RNA-guided endonuclease that has two distinct features as compared to Cas9. First, Cpf1 utilizes a thymidine-rich protospacer adjacent motif (PAM) while Cas9 prefers a guanidine-rich PAM. Cpf1 could be used as a sequence-specific nuclease to target AT-rich regions of a genome that Cas9 had difficulty accessing. Second, Cpf1 generates DNA ends with a 5' overhang, whereas Cas9 creates blunt DNA ends after cleavage...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27903805/how-do-photosynthetic-organisms-manage-light-stress-a-tribute-to-the-late-professor-kozi-asada
#3
EDITORIAL
Jun'ichi Mano, Tsuyoshi Endo, Chikahiro Miyake
No abstract text is available yet for this article.
July 2016: Plant & Cell Physiology
https://www.readbyqxmd.com/read/27903472/-endovascular-treatment-of-poplital-artery-aneurysms-a-word-of-caution-after-long-term-follow-up
#4
Cosimo Maraglino, Gianluca Canu, Renzo Ambrosi, Franco Briolini, Riccardo Gotti, Pietro Cefalì, Fabio Calliari, Paolo Ferrero, Franco Terraneo
PURPOSE: The aim of this work was to evaluate the long-term patency of endo-grafting in the treatment of popliteal artery aneurysms (Paa) and to identify which factors may be predictor of graft occlusion. METHODS: All the patients that underwent endovascular repair of Paa were analyzed from 2006 until 2014 on the basis of symptoms, comorbidities, limb salvage and long-term patency. The predictive value of the different variables was assessed in univariate analysis for primary patency and, for factors resulted significant, a multivariate analysis was performed...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27903266/environmental-determinants-of-malaria-transmission-in-african-villages
#5
Noriko Endo, Elfatih A B Eltahir
BACKGROUND: Malaria transmission is complex, involving a range of hydroclimatological, biological, and environmental processes. The high degree of non-linearity in these processes makes it difficult to predict and intervene against malaria. This study seeks both to define a minimal number of malaria transmission determinants, and to provide a theoretical basis for sustainable environmental manipulation to prevent malaria transmission. METHODS: Using a field-tested mechanistic malaria model, HYDREMATS, a theoretical study was conducted under hypothetical conditions...
December 1, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27902248/bacillus-maritimus-sp-nov-a-novel-member-of-the-genus-bacillus-isolated-from-marine-sediment
#6
Deepika Pal, Rajendran Mathan Kumar, Navjot Kaur, Narender Kumar, Gurwinder Kaur, Nitin Kumar Singh, Srinivasan Krishnamurthi, Shanmugam Mayilraj
The taxonomic position of a Gram-stain-positive, endo-spore forming bacterium strain KS16-9T isolated from marine sediment sample collected from Kovalam, Kanyakumari coastal region of Indian Ocean, India was analyzed by a polyphasic taxonomic approach. Strain KS16-9T had typical phenotypic characteristics and chemotaxonomic features like menaquinones, fatty acids and lipids that consistent with the genus Bacillus and comparative analysis of 16S rRNA gene sequence of the strain with previously studied Bacillus type strains confirmed that the strain belongs to the genus Bacillus and is moderately related to Bacillus persicus B48T showing 98...
October 12, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27901044/fatty-acid-metabolic-reprogramming-via-mtor-mediated-inductions-of-ppar%C3%AE-directs-early-activation-of-t-cells
#7
Mulki Angela, Yusuke Endo, Hikari K Asou, Takeshi Yamamoto, Damon J Tumes, Hirotake Tokuyama, Koutaro Yokote, Toshinori Nakayama
To fulfil the bioenergetic requirements for increased cell size and clonal expansion, activated T cells reprogramme their metabolic signatures from energetically quiescent to activated. However, the molecular mechanisms and essential components controlling metabolic reprogramming in T cells are not well understood. Here, we show that the mTORC1-PPARγ pathway is crucial for the fatty acid uptake programme in activated CD4(+) T cells. This pathway is required for full activation and rapid proliferation of naive and memory CD4(+) T cells...
November 30, 2016: Nature Communications
https://www.readbyqxmd.com/read/27900528/the-thermophilic-biomass-degrading-fungus-thielavia-terrestris-co3bag1-produces-a-hyperthermophilic-and-thermostable-%C3%AE-1-4-xylanase-with-exo-and-endo-activity
#8
Yolanda García-Huante, Maribel Cayetano-Cruz, Alejandro Santiago-Hernández, Claudia Cano-Ramírez, Rodolfo Marsch-Moreno, Jorge E Campos, Guillermo Aguilar-Osorio, Claudia G Benitez-Cardoza, Sergio Trejo-Estrada, María Eugenia Hidalgo-Lara
A hyperthermophilic and thermostable xylanase of 82 kDa (TtXynA) was purified from the culture supernatant of T. terrestris Co3Bag1, grown on carboxymethyl cellulose (CMC), and characterized biochemically. TtXynA showed optimal xylanolytic activity at pH 5.5 and at 85 °C, and retained more than 90% of its activity at a broad pH range (4.5-10). The enzyme is highly thermostable with a half-life of 23.1 days at 65 °C, and active in the presence of several metal ions. Circular dichroism spectra strongly suggest the enzyme gains secondary structures when temperature increases...
November 29, 2016: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/27900527/should-all-patients-with-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy-undergo-epicardial-catheter-ablation
#9
Andreas Müssigbrodt, Elena Efimova, Helge Knopp, Livio Bertagnolli, Nikolaos Dagres, Sergio Richter, Daniela Husser, Andreas Bollmann, Gerhard Hindricks, Arash Arya
BACKGROUND: Epicardial radiofrequency catheter ablation is currently considered as the therapeutic option of choice in patients with arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) and recurrent ventricular tachycardia (VT). We hypothesised that inducibility of VT may guide the ablation strategy and thereby affect long-term results. Additional epicardial ablation was only performed if VT were still inducible after thorough endocardial ablation. METHODS: The objective was to examine an inducibility-guided ablation approach by comparing the long-term results between endocardial and epi-endocardial radiofrequency catheter ablation of VT in a large cohort of patients with ARVD/C...
November 30, 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/27900087/doublet-chemotherapy-with-cisplatin-and-pemetrexed-is-associated-with-a-favorable-outcome-in-patients-with-advanced-non-squamous-non-small-cell-lung-cancer-who-are-eligible-for-bevacizumab-and-maintenance-therapy
#10
Kazuhisa Nakashima, Haruyasu Murakami, Shota Omori, Kazushige Wakuda, Akira Ono, Hirotsugu Kenmotsu, Tateaki Naito, Masahiro Endo, Toshiaki Takahashi
The previous AVAPERL trial demonstrated that induction therapy with first-line cisplatin (CDDP), pemetrexed (PEM) and bevacizumab (BEV), followed by continuation maintenance therapy with PEM+BEV, improved the progression-free survival (PFS) and overall survival (OS) compared with BEV alone (median PFS, 10.2 vs. 6.6 months and median OS, 19.8 vs. 15.9 months, respectively) in patients with advanced non-squamous non-small-cell lung cancer (non-Sq NSCLC). However, those findings were based on selected patients who were eligible for BEV and maintenance therapy...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27899777/-physical-activity-in-patients-with-gastrointestinal-cancer-undergoing-outpatient-chemotherapy
#11
Megumi Iwakoshi, Tetsuya Tsuji, Hiromasa Takaishi, Yasuo Hamamoto, Tsunehiro Takahashi, Takashi Endo, Yuko Kitagawa, Meigen Liu
PURPOSE: To determine factors affecting physical activity in outpatients with gastrointestinal cancer. METHODS: This observational study applied the International Physical Activity Questionnaire(IPAQ)to identify factors affecting physical activity in outpatients(male, n=51; female, n=24; mean age, 64.2±10.2 years)with gastrointestinal cancer undergoing chemotherapy. Relationships between the main outcome measures, total weekly physical activity score(TPA)and total weekly energy expenditure(TEE), and patient background factors were analyzed...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/27899748/cannabinoid-type-2-receptor-drives-neurogenesis-and-improves-functional-outcome-after-stroke
#12
Isabel Bravo-Ferrer, María I Cuartero, Juan G Zarruk, Jesús M Pradillo, Olivia Hurtado, Víctor G Romera, Javier Díaz-Alonso, Juan M García-Segura, Manuel Guzmán, Ignacio Lizasoain, Ismael Galve-Roperh, María A Moro
BACKGROUND AND PURPOSE: Stroke is a leading cause of adult disability characterized by physical, cognitive, and emotional disturbances. Unfortunately, pharmacological options are scarce. The cannabinoid type-2 receptor (CB2R) is neuroprotective in acute experimental stroke by anti-inflammatory mechanisms. However, its role in chronic stroke is still unknown. METHODS: Stroke was induced by permanent middle cerebral artery occlusion in mice; CB2R modulation was assessed by administering the CB2R agonist JWH133 ((6aR,10aR)-3-(1,1-dimethylbutyl)-6a,7,10,10a-tetrahydro-6,6,9-trimethyl-6H-dibenzo[b,d]pyran) or the CB2R antagonist SR144528 (N-[(1S)-endo-1,3,3-trimethylbicyclo-[2...
November 29, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27899424/genetic-architecture-of-sporadic-frontotemporal-dementia-and-overlap-with-alzheimer-s-and-parkinson-s-diseases
#13
Raffaele Ferrari, Yunpeng Wang, Jana Vandrovcova, Sebastian Guelfi, Aree Witeolar, Celeste M Karch, Andrew J Schork, Chun C Fan, James B Brewer, Parastoo Momeni, Gerard S Schellenberg, William P Dillon, Leo P Sugrue, Christopher P Hess, Jennifer S Yokoyama, Luke W Bonham, Gil D Rabinovici, Bruce L Miller, Ole A Andreassen, Anders M Dale, John Hardy, Rahul S Desikan
BACKGROUND: Clinical, pathological and genetic overlap between sporadic frontotemporal dementia (FTD), Alzheimer's disease (AD) and Parkinson's disease (PD) has been suggested; however, the relationship between these disorders is still not well understood. Here we evaluated genetic overlap between FTD, AD and PD to assess shared pathobiology and identify novel genetic variants associated with increased risk for FTD. METHODS: Summary statistics were obtained from the International FTD Genomics Consortium, International PD Genetics Consortium and International Genomics of AD Project (n>75 000 cases and controls)...
November 29, 2016: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/27896408/is-routine-prophylactic-cholecystectomy-necessary-during-gastrectomy-for-gastric-cancer
#14
Jun Kimura, Chikara Kunisaki, Ryo Takagawa, Hirochika Makino, Michio Ueda, Mitsuyoshi Ota, Mari Oba, Takashi Kosaka, Hirotoshi Akiyama, Itaru Endo
BACKGROUND: Performing routine prophylactic cholecystectomy during gastrectomy in gastric cancer patients has been controversial. The frequency of cholelithiasis, cholecystitis, and cholangitis after gastrectomy has not been reported for large patient populations, so we carried out this retrospective study to aid the assessment of the necessity for prophylactic cholecystectomy. METHODS: This retrospective study reviewed 969 patients with gastric cancer who underwent distal gastrectomies with Billroth I reconstructions (DG) or total gastrectomies with Roux-en-Y reconstructions (TG), preserving the gallbladder, between January 2000 and May 2012...
November 28, 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/27896217/adapt-recycle-and-move-on-proteostasis-and-trafficking-mechanisms-in-melanoma
#15
REVIEW
Seyma Demirsoy, Shaun Martin, Hannelore Maes, Patrizia Agostinis
Melanoma has emerged as a paradigm of a highly aggressive and plastic cancer, capable to co-opt the tumor stroma in order to adapt to the hostile microenvironment, suppress immunosurveillance mechanisms, and disseminate. In particular, oncogene- and aneuploidy-driven dysregulations of proteostasis in melanoma cells impose a rewiring of central proteostatic processes, such as the heat shock and unfolded protein responses, autophagy, and the endo-lysosomal system, to avoid proteotoxicity. Research over the past decade has indicated that alterations in key nodes of these proteostasis pathways act in conjunction with crucial oncogenic drivers to increase intrinsic adaptations of melanoma cells against proteotoxic stress, modulate the high metabolic demand of these cancer cells and the interface with other stromal cells, through the heightened release of soluble factors or exosomes...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27895378/intravesical-foreign-body-tertiary-care-center-experience-from-pakistan
#16
Hussam Uddin Soomro, Imran Jalbani, Nuzhat Faruqui
Foreign body in bladder is relatively uncommon condition with variable presentations. Literature is limited to case reports and small series from region. Therefore, we planned this study to review our experience regarding intravesical foreign body. This retrospective study was conducted at the Aga Khan University Hospital, Karachi, and comprised 14 patients having intravesical foreign bodies from March 1989 to March 2013. Demographics, presentation, mode of insertion, type of foreign body and management were noted...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27894711/survival-benefit-of-gastrectomy-for-gastric-cancer-in-patients-%C3%A2-85%C3%A2-years-old-a-retrospective-propensity-score-matched-analysis
#17
Shunji Endo, Yosuke Shimizu, Masakazu Ikenaga, Katsuya Ohta, Terumasa Yamada
BACKGROUND: The purpose of this study was to compare the long-term outcomes of patients ≥85 years old with gastric cancer who underwent curative distal gastrectomy or best supportive care alone. METHODS: Among 241 consecutive patients aged ≥85 years who were diagnosed with gastric cancer, we retrospectively examined the cases of 56 patients that were treated with curative distal gastrectomy and 55 patients that were treated with best supportive care alone...
November 25, 2016: Surgery
https://www.readbyqxmd.com/read/27893711/the-induction-of-mig6-under-hypoxic-conditions-is-critical-for-dormancy-in-primary-cultured-lung-cancer-cells-with-activating-egfr-mutations
#18
H Endo, J Okami, H Okuyama, Y Nishizawa, F Imamura, M Inoue
The biologic activity of individual cancer cells is highly heterogeneous. Hypoxia, one of the prominent features of a tumor microenvironment, is thought to be causal in generating this cellular heterogeneity. In this study, we revealed that primary lung cancer cells harboring activating epidermal growth factor receptor (EGFR) mutations generally entered a dormant state when hypoxic. We found that heterodimer formation of the ERBB family receptor tyrosine kinases (RTKs), and their subsequent downstream signaling, was diminished under hypoxic conditions, although phosphorylation of the EGFR was retained...
November 28, 2016: Oncogene
https://www.readbyqxmd.com/read/27893420/prognostic-value-of-three-dimensional-echocardiographic-right-ventricular-ejection-fraction-in-patients-with-pulmonary-arterial-hypertension
#19
Mitsushige Murata, Toshimitsu Tsugu, Takashi Kawakami, Masaharu Kataoka, Yugo Minakata, Jin Endo, Hikaru Tsuruta, Yuji Itabashi, Yuichiro Maekawa, Mitsuru Murata, Keiichi Fukuda
BACKGROUND: Right ventricular (RV) function is an independent predictor of clinical outcomes in patients with pulmonary arterial hypertension (PAH). However, it remains controversial which RV parameter should be measured as an appropriate index for the treatment of PAH. The aim of this study was to identify the most useful parameter that correlates with hemodynamics and predicts clinical outcomes in PAH. RESULTS: Most of the clinical and echocardiographic RV parameters were significantly correlated with pulmonary vascular resistance (PVR) as well as mean pulmonary arterial pressure (mPAP)...
November 22, 2016: Oncotarget
https://www.readbyqxmd.com/read/27891117/disruption-of-the-gene-encoding-endo-%C3%AE-1-4-xylanase-affects-the-growth-and-virulence-of-sclerotinia-sclerotiorum
#20
Yang Yu, Jifen Xiao, Jiao Du, Yuheng Yang, Chaowei Bi, Ling Qing
Sclerotinia sclerotiorum (Lib.) de Bary is a devastating fungal pathogen with worldwide distribution. S. sclerotiorum is a necrotrophic fungus that secretes many cell wall-degrading enzymes (CWDEs) that destroy plant's cell-wall components. Functional analyses of the genes that encode CWDEs will help explain the mechanisms of growth and pathogenicity of S. sclerotiorum. Here, we isolated and characterized a gene SsXyl1 that encoded an endo-β-1, 4-xylanase in S. sclerotiorum. The SsXyl1 expression showed a slight increase during the development and germination stages of sclerotia and a dramatic increase during infection...
2016: Frontiers in Microbiology
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