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https://www.readbyqxmd.com/read/28241147/earth-s-first-stable-continents-did-not-form-by-subduction
#1
Tim E Johnson, Michael Brown, Nicholas J Gardiner, Christopher L Kirkland, R Hugh Smithies
The geodynamic environment in which Earth's first continents formed and were stabilized remains controversial. Most exposed continental crust that can be dated back to the Archaean eon (4 billion to 2.5 billion years ago) comprises tonalite-trondhjemite-granodiorite rocks (TTGs) that were formed through partial melting of hydrated low-magnesium basaltic rocks; notably, these TTGs have 'arc-like' signatures of trace elements and thus resemble the continental crust produced in modern subduction settings. In the East Pilbara Terrane, Western Australia, low-magnesium basalts of the Coucal Formation at the base of the Pilbara Supergroup have trace-element compositions that are consistent with these being source rocks for TTGs...
February 27, 2017: Nature
https://www.readbyqxmd.com/read/28229634/biochemical-characterization-of-the-native-%C3%AE-carbonic-anhydrase-purified-from-the-mantle-of-the-mediterranean-mussel-mytilus-galloprovincialis
#2
Rosa Perfetto, Sonia Del Prete, Daniela Vullo, Giovanni Sansone, Carmela Barone, Mosè Rossi, Claudiu T Supuran, Clemente Capasso
A α-carbonic anhydrase (CA, EC 4.2.1.1) has been purified and characterized biochemically from the mollusk Mytilus galloprovincialis. As in most mollusks, this α-CA is involved in the biomineralization processes leading to the precipitation of calcium carbonate in the mussel shell. The new enzyme had a molecular weight of 50 kDa, which is roughly two times higher than that of a monomeric α-class enzyme. Thus, Mytilus galloprovincialis α-CA is either a dimer, or similar to the Tridacna gigas CA described earlier, may have two different CA domains in its polypeptide chain...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28229118/petechial-purpuric-and-ecchymotic-presentation-of-cutaneous-cryptococcus-in-mantle-cell-lymphoma
#3
Christie D Kimball, Allison Cruse, Lauren Craig, Joy King, Stephen Helms, Julie Wyatt, Jeremy Jackson, Robert Brodell
No abstract text is available yet for this article.
January 2017: JAAD Case Reports
https://www.readbyqxmd.com/read/28224655/rna-seq-analysis-of-transcriptional-change-in-the-freshwater-mussel-elliptio-complanata-after-environmentally-relevant-sodium-chloride-exposure
#4
Laura S Robertson, Heather S Galbraith, Deborah Iwanowicz, Carrie J Blakeslee, R Scott Cornman
To identify potential biomarkers of salt stress in a freshwater sentinel species, we examined transcriptional responses of the common mussel Elliptio complanata to controlled NaCl exposures. RNA-Seq of mantle tissue identified 481 transcripts differentially expressed in adult mussels exposed to 2 ppt NaCl (1.2 ppt chloride) for seven days, of which 290 had non-overlapping intervals. Differentially expressed gene categories included ion and transmembrane transport, oxidoreductase activity, maintenance of protein folding, and amino acid metabolism...
February 22, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28224402/assessment-of-correlation-between-early-and-late-efficacy-endpoints-to-identify-potential-surrogacy-relationships-in-non-hodgkin-lymphoma-a-literature-based-meta-analysis-of-108-phase-ii-and-phase-iii-studies
#5
Rui Zhu, Dan Lu, Yu-Waye Chu, Akiko Chai, Michelle Green, Nancy Zhang, Jin Yan Jin
Correlations between early and late efficacy endpoints were assessed to identify potential surrogate endpoints for overall survival (OS) or progression-free survival (PFS) with clinical trial-level data in three non-Hodgkin lymphoma (NHL) subtypes: diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), and mantle cell lymphoma (MCL). One hundred and eight phase II-III trials (129 trial arms) in DLBCL, FL, and MCL were identified and included in the database. Correlations between efficacy endpoints were analyzed using weighted linear regression and Pearson's coefficient of determination (R (2))...
February 21, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28222652/results-from-the-belgian-mantle-cell-lymphoma-registry
#6
Vibeke Vergote, Ann Janssens, Marc André, Christophe Bonnet, Vanessa Van Hende, Eric Van Den Neste, Koen Van Eygen, Marie Maerevoet, Delphine Pranger, Wilfried Schroyens, Sarah Debussche, Vincent Maertens, Karolien Beel, Jan Lemmens, Charlotte Caron, Vanessa Delrieu, Isabelle Van Den Broeck, Gaetan Vanstraelen, Caroline Jacquy, Liesbeth Schauvlieghe, Hade De Samblanx, Vincent Madoe, Stef Meers, Dominique Boulet, Gregor Verhoef, Achiel Van Hoof
INTRODUCTION: Mantle cell lymphoma is a B-cell non-Hodgkin's lymphoma characterized by a t(11;14), resulting in overexpression of cyclin D1. Conventional chemotherapy obtains frequent (but short) remissions, leading to a poor median overall survival (OS) of 3-5 years. To obtain more information about the prevalence and current treatment of Mantle cell lymphoma (MCL) in Belgium, we collected data in a Belgian registry of MCL. MATERIALS AND METHODS: All Belgian MCL patients, t(11;14) and/or cyclin D1 positive, seen in hematology departments over a one-year period (April 2013-March 2014) were included...
February 22, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28221764/correlation-of-bandgap-reduction-with-inversion-response-in-si-gesn-high-k-metal-stacks
#7
Christian Schulte-Braucks, Keyvan Narimani, Stefan Glass, Nils von den Driesch, Jean-Michel Hartmann, Zoran Ikonic, Valeri V Afanas'ev, Qing-Tai Zhao, Siegfried Mantl, Dan Buca
The bandgap tunability of (Si)GeSn group IV semiconductors opens a new era in Si-technology. Depending on the Si/Sn contents, direct and indirect bandgaps in the range of 0.4 eV to 0.8 eV can be obtained, offering a broad spectrum of both photonic and low power electronic applications. In this work, we systematically studied capacitance-voltage characteristics of high-k/metal gate stacks formed on GeSn and SiGeSn alloys with Sn-contents ranging from 0 to 14 at.% and Si-contents from 0 to 10 at.% particularly focusing on the minority carrier inversion response...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28219226/-effects-of-13-cis-retinoic-acid-combined-with-interferon-%C3%AE-2b-in-mantle-cell-lymphoma-cell-lines-jeko-1-in-vitro
#8
Z B Liu, J J Wen, C G Xu
Objectives: To explore the effects of 13-cis-retinoic acid (13cRA) alone or combined with interferonα-2b (IFNα-2b) for the inhibition of cell growth and apoptosis induction of mantle cell lymphoma cell lines Jeko-1 cells. Methods: Jeko-1 cells were treated by different concentrations of 13cRA alone or combined with IFN-α2b. CCK-8 was used to measure the inhibition effects by different treatments. Cell cycles were analyzed by flow cytometry. Effects on apoptosis were assessed by staining of Annexin Ⅴ/PI...
January 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28217141/primary-orbital-mantle-cell-lymphoma-flow-cytometric-immunophenotyping-as-an-adjunct-to-fine-needle-aspiration-cytology-for-diagnosis
#9
Sangeeta Verma, Nalini Gupta, Satyawati Mohindra, Manupdesh Singh Sachdeva, Arvind Rajwanshi
No abstract text is available yet for this article.
2017: CytoJournal
https://www.readbyqxmd.com/read/28216664/iron-isotopic-fractionation-between-silicate-mantle-and-metallic-core-at-high-pressure
#10
Jin Liu, Nicolas Dauphas, Mathieu Roskosz, Michael Y Hu, Hong Yang, Wenli Bi, Jiyong Zhao, Esen E Alp, Justin Y Hu, Jung-Fu Lin
The +0.1‰ elevated (56)Fe/(54)Fe ratio of terrestrial basalts relative to chondrites was proposed to be a fingerprint of core-mantle segregation. However, the extent of iron isotopic fractionation between molten metal and silicate under high pressure-temperature conditions is poorly known. Here we show that iron forms chemical bonds of similar strengths in basaltic glasses and iron-rich alloys, even at high pressure. From the measured mean force constants of iron bonds, we calculate an equilibrium iron isotope fractionation between silicate and iron under core formation conditions in Earth of ∼0-0...
February 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28214598/three-stats-are-involved-in-the-regulation-of-the-expression-of-antimicrobial-peptides-in-the-triangle-sail-mussel-hyriopsis-cumingii
#11
Yun-Jia Dai, Kai-Min Hui, Ying-Hao Zhang, Yan Liu, Yu-Qing Wang, Li-Juan Zhao, Li Lin, Lian-Qin Chai, Shun Wei, Jiang-Feng Lan
Janus kinase (Jak) and signal transducers and activators of transcription (STAT) signaling pathway is associated in antiviral and antibacterial immune response. Previous studies primarily investigated the function of STATs in mammals. For most invertebrates, only one STAT was found in each species, such as STAT92E was found in Drosophila melanogaster. The studies, which focus on the functional difference between various STATs in the same species of invertebrate, are limited. In the present study, three STATs (HcSTAT1, HcSTAT2 and HcSTAT3) were identified in triangle shell pearl mussel, Hyriopsis cumingii...
February 16, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28211459/gravitational-body-forces-focus-north-american-intraplate-earthquakes
#12
Will Levandowski, Mark Zellman, Rich Briggs
Earthquakes far from tectonic plate boundaries generally exploit ancient faults, but not all intraplate faults are equally active. The North American Great Plains exemplify such intraplate earthquake localization, with both natural and induced seismicity generally clustered in discrete zones. Here we use seismic velocity, gravity and topography to generate a 3D lithospheric density model of the region; subsequent finite-element modelling shows that seismicity focuses in regions of high-gravity-derived deviatoric stress...
February 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28209503/lymphoma-of-the-eyelid-an-international-multicenter-retrospective-study
#13
Frederik Holm Svendsen, Peter Kristian Rasmussen, Sarah E Coupland, Bita Esmaeli, Paul T Finger, Gerardo F Graue, Hans E Grossniklaus, Santosh G Honavar, Jwu Jin Khong, Penelope A McKelvie, Kaustubh Mulay, Elisabeth Ralfkiaer, Lene Dissing Sjö, Geeta K Vemuganti, Bradley A Thuro, Jeremy Curtin, Steffen Heegaard
PURPOSE: To document subtype-specific clinical features of lymphoma of the eyelid, and their effect on patient outcome. DESIGN: Retrospective observational case series. METHODS: Patient data were collected from 7 international eye cancer centers from January 1st 1980 through December 31st 2015. The cases included primary and secondary lymphomas affecting the eyelid. Overall survival, disease-specific survival (DSS), and progression-free survival were the primary end points...
February 13, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28208145/carfilzomib-inhibits-constitutive-nf-%C3%AE%C2%BAb-activation-in-mantle-cell-lymphoma-b-cells-and-leads-to-the-induction-of-apoptosis
#14
Yong-Li Zhang, Matthew Ho Zhi Guang, Hui-Qin Zhuo, Xiang-Hui Min, Qin Yao, Ai-Qi Gu, Sheng-Hua Wu, Dai-Bo Zhang, Jing-Yuan Lu, Yan Chen, Yu-Han Chen, Ke-Jie Zhang
Mantle cell lymphoma (MCL) remains incurable and new treatments are needed, especially in the relapsed/refractory setting. We therefore investigated the effects of carfilzomib, a novel, long-acting, second-generation proteasome inhibitor, in MCL cells. Eight established MCL cell lines and freshly isolated primary MCL cells were treated with carfilzomib. Cell proliferation was assessed by a 3H-thymidine incorporation assay. Cell apoptosis was evaluated by flow cytometry with annexin V and propidium iodide. Electrophoresis mobility shift (EMSA), Western blot, and luciferase assays were used to analyze NF-κB activation and related signaling proteins...
February 17, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28205354/mini-review-a-unique-case-of-crescentic-c3-glomerulonephritis
#15
Dharmenaan Palamuthusingam, Murty Mantha, Kimberley Oliver, Ketan Bavishi, Shyam Dheda
Kidney involvement is an under-recognized complication of non-Hodgkin lymphomas. They occur in a variety of mechanisms and differ widely in their clinical presentation. We take this opportunity to report a case of a 65 year-old man who developed a rapidly progressive glomerulonephritis within days after completing his first cycle of R-CHOP (Rituximab, Cyclophosphamide, Doxorubicin, Vincristine, Prednisolone) chemotherapy for newly diagnosed mantle cell lymphoma. He was odematous, hypertensive, oliguric with nephrotic range proteinuria and an active urine sediment...
March 2017: Nephrology
https://www.readbyqxmd.com/read/28204970/a-carbonic-anhydrase-serves-as-an-important-acid-base-regulator-in-pacific-oyster-crassostrea-gigas-exposed-to-elevated-co2-implication-for-physiological-responses-of-mollusk-to-ocean-acidification
#16
Xiudan Wang, Mengqiang Wang, Zhihao Jia, Limei Qiu, Lingling Wang, Anguo Zhang, Linsheng Song
Carbonic anhydrases (CAs) have been demonstrated to play an important role in acid-base regulation in vertebrates. However, the classification and modulatory function of CAs in marine invertebrates, especially their responses to ocean acidification remain largely unknown. Here, a cytosolic α-CA (designated as CgCAII-1) was characterized from Pacific oyster Crassostrea gigas and its molecular activities against CO2 exposure were investigated. CgCAII-1 possessed a conserved CA catalytic domain, with high similarity to invertebrate cytoplasmic or mitochondrial α-CAs...
February 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/28203581/long-term-response-and-possible-cure-of-patients-with-b-cell-malignancies-with-dose-escalated-rituximab
#17
Lauren M Jacobs, Peter H Wiernik, Janice P Dutcher, Pablo Muxi
Rituximab (R), a chimeric monoclonal antibody targeting CD20 antigen on B-cells, has become a standard of care in the treatment of B-cell malignancies, most often in conjunction with cytotoxic chemotherapy. Activity has been demonstrated in many subtypes of B-cell lymphoma, including diffuse large cell lymphoma, follicular lymphoma (FL), mantle cell lymphoma (MCL), chronic lymphocytic leukemia (CLL), lymphocyte-predominant Hodgkin lymphoma, and Waldenström macroglobulinemia (WM). Additionally, dose escalation of R as a single agent has demonstrated improved activity in previously treated/poor prognosis CLL...
January 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28203175/ibrutinib-is-effective-in-the-treatment-of-autoimmune-haemolytic-anaemia-in-mantle-cell-lymphoma
#18
Aliénor Galinier, Vincent Delwail, Mathieu Puyade
Autoimmune haemolytic anaemia (AIHA) in mantle cell lymphoma (MCL) is a rare but life-threatening complication. To date, there are no relevant data for treatment of AIHA in MCL. Ibrutinib, which has been approved for relapse/refractory MCL, is an immunomodulatory drug inhibiting Th2 activation and consequently the production of autoantibodies. We report a case of MCL with AIHA in which this form of anaemia was not controlled with the usual chemotherapy. Ibrutinib was used when MCL with AIHA relapsed, and it allowed rapid remission of AIHA and rapid discontinuation of steroid therapy...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28199309/phosphatidylinositol-3-kinase-%C3%AE-blockade-increases-genomic-instability-in-b-cells
#19
Mara Compagno, Qi Wang, Chiara Pighi, Taek-Chin Cheong, Fei-Long Meng, Teresa Poggio, Leng-Siew Yeap, Elif Karaca, Rafael B Blasco, Fernanda Langellotto, Chiara Ambrogio, Claudia Voena, Adrian Wiestner, Siddha N Kasar, Jennifer R Brown, Jing Sun, Catherine J Wu, Monica Gostissa, Frederick W Alt, Roberto Chiarle
Activation-induced cytidine deaminase (AID) is a B-cell-specific enzyme that targets immunoglobulin genes to initiate class switch recombination and somatic hypermutation. In addition, through off-target activity, AID has a much broader effect on genomic instability by initiating oncogenic chromosomal translocations and mutations involved in the development and progression of lymphoma. AID expression is tightly regulated in B cells and its overexpression leads to enhanced genomic instability and lymphoma formation...
February 15, 2017: Nature
https://www.readbyqxmd.com/read/28198399/discovery-of-the-fe-analogue-of-akimotoite-in-the-shocked-suizhou-l6-chondrite
#20
Luca Bindi, Ming Chen, Xiande Xie
We report the first natural occurrence of the Fe-analogue of akimotoite, ilmenite-structured MgSiO3, a missing phase among the predicted high-pressure polymorphs of Fe-pyroxene, with the composition (Fe(2+)0.48Mg0.37Ca0.04Na0.04Mn(2+)0.03Al0.03Cr(3+)0.01)Σ=1.00Si1.00O3. The new mineral was approved by the International Mineralogical Association (IMA 2016-085) and named hemleyite in honour of Russell J. Hemley. It was discovered in an unmelted portion of the heavily shocked L6 Suizhou chondrite closely associated to olivine, clinoenstatite and Fe-bearing pyroxene with a composition nearly identical to that of hemleyite...
February 15, 2017: Scientific Reports
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