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https://www.readbyqxmd.com/read/30050122/european-experience-and-risk-factor-analysis-of-donor-cell-derived-leukaemias-mds-following-haematopoietic-cell-transplantation
#1
Nicole Engel, Alicia Rovo, Manuela Badoglio, Myriam Labopin, Grzegorz W Basak, Yves Beguin, Denis Guyotat, Per Ljungman, Arnon Nagler, Anton Schattenberg, Thomas Schroeder, Wilfried Schroyens, Johanna Tischer, Gerard Socie, Hans-Jochem Kolb, Andre Tichelli, Nina Salooja, Rafael F Duarte
Donor cell leukaemia (DCL) is a rare complication of allogeneic haematopoietic cell transplantation (HCT). We have investigated the prevalence and outcome of donor cell haematology malignancies within centres registered with the European Society of Blood and Marrow transplantation (EBMT). We have sought to identify risk factors to shed light on the pathogenesis of DCL as a model for leukaemogenesis. DCL cases were identified by questionnaire and a follow-up questionnaire requested detailed data. Control subjects from the EBMT registry who had not developed DCL were used for a matched pair analysis to identify risk factors...
July 26, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/30032201/osdcl1a-activation-impairs-phytoalexin-biosynthesis-and-compromises-disease-resistance-in-rice
#2
Raquel Salvador-Guirao, Patricia Baldrich, Shiho Tomiyama, Yue-Ie Hsing, Kazunori Okada, Blanca San Segundo
Background and Aims: MicroRNAs (miRNAs) are small non-coding RNAs that act as post-transcriptional regulators of gene expression via sequence-specific cleavage or translational repression of target transcripts. They are transcribed as long single-stranded RNA precursors with unique stem-loop structures that are processed by a DICER-Like (DCL) ribonuclease, typically DCL1, to produce mature miRNAs. Although a plethora of miRNAs have been found to be regulated by pathogen infection in plants, the biological function of most miRNAs remains largely unknown...
July 18, 2018: Annals of Botany
https://www.readbyqxmd.com/read/30028986/effect-of-antiprotozoal-molecules-on-hypnospores-of-perkinsus-spp-parasite
#3
Sâmia Sousa Duarte, Ricardo Olímpio de Moura, Patricia Mirella da Silva
Perkinsus protozoan parasites have been associated with high mortality of bivalves worldwide, including Brazil. The use of antiproliferative drugs to treat the Perkinsosis is an unusual prophylactic strategy. However, because of their environment impact it could be used to control parasite proliferation in closed system, such as hatchery. This study evaluated the anti-Perkinsus activity potential of synthesized and commercial compounds. Viability of hypnospores of Perkinsus spp. was assessed in vitro. Cells were incubated with three 2-amino-thiophene (6AMD, 6CN, 5CN) and one acylhydrazone derivatives (AMZ-DCL), at the concentrations of 31...
July 17, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/30014461/extensive-somatosensory-and-motor-corticospinal-sprouting-occurs-following-a-central-dorsal-column-lesion-in-monkeys
#4
Karen M Fisher, Alayna Lilak, Joseph Garner, Corinna Darian-Smith
The corticospinal tract (CST) forms the major descending pathway mediating voluntary hand movements in primates, and originates from nine cortical subdivisions in the macaque. While the terminals of spared motor CST axons are known to sprout locally within the cord in response to spinal injury, little is known about the response of the other CST subcomponents. We previously reported, that following a cervical dorsal root lesion (DRL), the primary somatosensory (S1) CST terminal projection retracts to 60% of its original terminal domain, while the primary motor (M1) projection remains robust (Darian-Smith et al...
July 17, 2018: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/30007088/donor-cell-derived-acute-promyelocytic-leukemia-after-allogeneic-hematopoietic-stem-cell-transplantation
#5
Anne Bouvier, Bénédicte Ribourtout, Sylvie François, Corentin Orvain, Damien Luque Paz, Annaëlle Beucher, Alexandre Guérard, Philippe Guardiola, Valérie Ugo, Odile Blanchet, Franck Geneviève, Aline Schmidt, Mathilde Hunault-Berger
Allogeneic hematopoietic stem cell transplantation (HSCT) is the one of treatment known to cure acute myeloid leukemia (AML). Relapse of AML remains the major cause of treatment failure in patients after HSCT. In rare cases, secondary leukemia is derived from donor cells, designated as donor cell leukemia (DCL) This article is protected by copyright. All rights reserved.
July 14, 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29987916/on-the-mechanism-of-the-reactivity-of-1-3-dialkylimidazolium-salts-under-basic-to-acidic-conditions-a-combined-kinetic-and-computational-study
#6
Daniel Rico Del Cerro, Raúl Mera-Adasme, Alistair W T King, Jesus E Perea-Buceta, Sami Heikkinen, Tapio Hase, Dage Sundholm, Kristiina Wähälä
Comprehensive spectroscopic kinetic studies illustrate an alternative mechanism for the traditional free-carbene intermediated H/D exchange reaction of 1,3-dialkylimidazolium salts under neutral (D2 O) and acidic conditions (DCl/D2 O 35 wt % solution). The deuteration of high purity [bmim]Cl in D2 O is studied at different temperatures, in absence of catalyst or impurities, to yield an activation energy. DFT transition-state modelling, of a small water cluster and [bmim] cation, also yields an activation energy which strongly supports the proposed mechanism...
July 10, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29986902/effects-of-dry-needling-on-post-stroke-spasticity-motor-function-and-stability-limits-a-randomised-clinical-trial
#7
Zacarías Sánchez-Mila, Jaime Salom-Moreno, César Fernández-de-Las-Peñas
OBJECTIVE: To determine the effects of inclusion of deep dry needling into a treatment session following the Bobath concept on spasticity, motor function and postural control after a stroke. METHODS: 26 patients who had suffered a stroke were randomly assigned to one of two treatment groups: Bobath only, or Bobath plus dry needling. Both groups received a session including strengthening, stretching and reconditioning exercises following the principles of the Bobath concept...
July 9, 2018: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/29978836/decellularized-corneal-lenticule-embedded-compressed-collagen-toward-a-suturable-collagenous-construct-for-limbal-reconstruction
#8
Hyeonjun Hong, Man-Il Huh, Sang Min Park, Kyoung-Pil Lee, Hong Kyun Kim, Dong Sung Kim
Recently, compressed collagen has attracted much attention as a potential alternative for a limbal epithelial stem cell (LESC) carrier to treat limbal stem cell deficiency (LSCD), in that it can provide mechanically improved collagen fibrillar structures compared to conventional collagen hydrogel. However, its clinical efficacy as an LESC carrier has not yet been studied through in vivo transplantation due to limited mechanical strength that cannot withstand a force induced by surgical suturing and low resistance to enzymatic degradation...
July 23, 2018: Biofabrication
https://www.readbyqxmd.com/read/29948127/dicer-like-and-rna-dependent-rna-polymerase-gene-family-identification-and-annotation-in-the-cultivated-solanum-tuberosum-and-its-wild-relative-s-commersonii
#9
Salvatore Esposito, Riccardo Aversano, Vincenzo D'Amelia, Clizia Villano, Daniela Alioto, Marie Mirouze, Domenico Carputo
We provide advances in DCL and RDR gene diversity in Solanaceae. We also shed light on DCL and RDR gene expression in response to cold stress. DICER-like (DCL) and RNA-dependent RNA polymerase (RDR) genes form the core components to trigger small non-coding RNA (ncRNA) production. In spite of this, little is known about the two gene families in non-model plant species. As their genome sequences are now available, the cultivated potato (Solanum tuberosum) and its cold-tolerant wild relative Solanum commersonii offer a valuable opportunity to advance our understanding of the above genes...
June 9, 2018: Planta
https://www.readbyqxmd.com/read/29923618/antimicrobial-photodynamic-therapy-as-an-adjunct-for-clinical-partial-removal-of-deciduous-carious-tissue-a-minimally-invasive-approach
#10
Pâmela O Ornellas, Leonardo S Antunes, Paula C Motta, Caroline Mendonça, Helvécio Póvoa, Karla Fontes, Natalia Iorio, Lívia A A Antunes
This study aimed to evaluate the use of antimicrobial photodynamic therapy (aPDT) as an adjunct for minimally invasive treatment (partial removal of carious tissue-PRCT) of deciduous carious tissue evaluating its efficacy in reducing microorganisms. For that, a clinical study was design including children with deciduous molars with active deep caries lesions (DCL). PRCT was performed and remaining dentin was treated with 100 μg mL-1 methylene blue solution (5 min) and than irradiated with a low power laser emitting red light (InGaAIP-indium gallium aluminum phosphide; λ = 660 nm; 100 mW; 300 J cm-2 ; 90 s; 9 J)...
June 20, 2018: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29920230/do-predictive-relationships-exist-between-postural-control-and-falls-efficacy-in-unilateral-transtibial-prosthesis-users
#11
Cleveland T Barnett, Natalie Vanicek, David F Rusaw
OBJECTIVE: To assess whether variables from a postural control test relate to and predict falls efficacy in prosthesis users. DESIGN: Twelve-month within and between subjects repeated measures design. Participants performed the Limits of Stability (LOS) test protocol at study baseline and at 6-month follow-up. Participants also completed the Falls Efficacy Scale-International (FES-I) questionnaire, reflecting the fear of falling, and reported the number of falls monthly between study baseline and 6-month follow-up, and additionally at 9- and 12-month follow-ups...
June 16, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29867989/pd-l1-may-mediate-t-cell-exhaustion-in-a-case-of-early-diffuse-leishmaniasis-caused-by-leishmania-l-amazonensis
#12
Daniel Holanda Barroso, Sarah De Athayde Couto Falcão, Jorgeth de Oliveira Carneiro da Motta, Laís Sevilha Dos Santos, Gustavo Henrique Soares Takano, Ciro Martins Gomes, Cecília Beatriz Fiuza Favali, Beatriz Dolabela de Lima, Raimunda Nonata Ribeiro Sampaio
Introduction: Diffuse cutaneous leishmaniasis (DCL) is a rare disease form associated with Leishmania (L.) amazonensis in South America. It represents the "anergic" pole of American Tegumentary Leishmaniasis, and the explanation for its resistance to treatment remains elusive. We aimed to study some possible immunological mechanisms involved in the poor DCL treatment response by evaluating some cell surface molecules obtained from a patient with DCL by flow cytometry. Case presentation: A 65-year-old DCL patient who initially failed to respond to the standard treatment for the disease showed vacuolated macrophages filled with amastigotes in lesion biopsy, and L ...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29794477/evidence-based-deep-carious-lesion-management-from-concept-to-application-in-everyday-clinical-practice
#13
Sophie Doméjean, Brigitte Grosgogeat
This chapter aims to discuss the way dental practitioners manage deep carious lesions (DCL) in routine practice and the barriers and incentives/facilitators to changes in accepted practice. In concert with the philosophy of minimal intervention dentistry, the concept of quaternary prevention (actions taken to prevent overtreatment and reduce harm to the patient) emerges in dentistry. This can be applied to carious tissue removal (CTR) in DCL given the risks associated with this procedure (high risk of pulp exposure, pulpal complications, tooth substance loss, and unsuccessful invasive, expensive outcomes)...
2018: Monographs in Oral Science
https://www.readbyqxmd.com/read/29770488/an-efficient-and-facile-synthesis-of-deuterium-labeled-anticancer-agent-bendamustine-hydrochloride
#14
Baomin Liu, Hui Qin, Yinsheng Zhang
Bendamustine hydrochloride is an alkylating agent that was developed for the treatment of various human cancers. The stable isotope-labeled bendamustine was required to support clinic studies. An effective and operationally simple method for the synthesis of [D6 ] bendamustine hydrochloride was developed using DCl as a catalyst and D2 O as a deuterium source. Under the present condition, regioselectively deuterated bendamustine hydrochloride with high deuterium incorporation is achieved.
May 17, 2018: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29767422/reduction-triggered-transformation-of-disulfide-containing-micelles-at-chemically-tunable-rates
#15
Zhengyu Deng, Shuai Yuan, Ronald X Xu, Haojun Liang, Shiyong Liu
A dilemma exists between the circulation stability and cargo release/mass diffusion at desired sites when designing delivery nanocarriers and in vivo nanoreactors. Reported herein are disulfide-crosslinked (DCL) micelles exhibiting reduction-triggered switching of crosslinking modules and synchronized hydrophobic-to-hydrophilic transition. Tumor cell targeted DCL micelles undergo cytoplasmic milieu triggered disulfide cleavage and self-immolative decaging reactions at chemically adjustable rates, generating primary amine moieties...
July 16, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29761676/planned-re-laparotomy-in-a-non-trauma-setting-a-single-center-experience
#16
Yehuda Hershkovitz, Itamar Ashkenazi, Zahar Shapira, Oded Zmora, Igor Jeroukhimov
BACKGROUND: Damage control laparotomy (DCL) is the widely accepted procedure of choice in management of severely injured trauma patient. It has been implemented in non-trauma-related surgical pathology in the last decade. OBJECTIVES: To evaluate our experience with planned re-laparotomy (PRL) in non-trauma patients and compare it to other reports. METHODS: Charts of all patients admitted to Assaf Harofeh Medical Center who underwent PRL for non-trauma-related abdominal pathology during a 6 year period were reviewed...
May 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29747753/dehydrocostus-lactone-a-sesquiterpene-from-saussurea-lappa-clarke-suppresses-allergic-airway-inflammation-by-binding-to-dimerized-translationally-controlled-tumor-protein
#17
Haejun Pyun, Unwoo Kang, Eun Kyoung Seo, Kyunglim Lee
BACKGROUND: We previously reported that the biologically active form of histamine releasing factor (HRF) is dimerized translationally controlled tumor protein (dTCTP) which is involved in a number of allergic diseases. HYPOTHESIS/PURPOSE: Hoping that agents that modulate dTCTP may provide new therapeutic targets to allergic inflammatory diseases, we screened a library of natural products for substances that inhibit dTCTP. One such inhibitor we found was dehydrocostus lactone (DCL), a natural sesquiterpene present in rhizome of Saussurea lappa Clarke, the subject of this study...
April 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29723133/antipyrimidine-effects-of-five-different-pyrimidine-de-novo-synthesis-inhibitors-in-three-head-and-neck-cancer-cell-lines
#18
Godefridus J Peters
The pyrimidine de novo nucleotide synthesis consists of 6 sequential steps. Various inhibitors against these enzymes have been developed and evaluated in the clinic for their potential anticancer activity: acivicin inhibits carbamoyl-phosphate-synthase-II, N-(phosphonacetyl)-L- aspartate (PALA) inhibits aspartate-transcarbamylase, Brequinar sodium and dichloroallyl-lawsone (DCL) inhibit dihydroorotate-dehydrogenase, and pyrazofurin (PF) inhibits orotate-phosphoribosyltransferase. We compared their growth inhibition against 3 cell lines from head-and-neck-cancer (HEP-2, UMSCC-14B and UMSCC-14C) and related the sensitivity to their effects on nucleotide pools...
May 3, 2018: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/29690568/mycoviruses-as-triggers-and-targets-of-rna-silencing-in-white-mold-fungus-sclerotinia-sclerotiorum
#19
Pauline Mochama, Prajakta Jadhav, Achal Neupane, Shin-Yi Lee Marzano
This study aimed to demonstrate the existence of antiviral RNA silencing mechanisms in Sclerotinia sclerotiorum by infecting wild-type and RNA-silencing-deficient strains of the fungus with an RNA virus and a DNA virus. Key silencing-related genes were disrupted to dissect the RNA silencing pathway. Specifically, dicer genes ( dcl-1, dcl-2 , and both dcl-1 / dcl-2 ) were displaced by selective marker(s). Disruption mutants were then compared for changes in phenotype, virulence, and susceptibility to virus infections...
April 22, 2018: Viruses
https://www.readbyqxmd.com/read/29685615/effectiveness-and-safety-of-continuous-neuromuscular-blockade-in-trauma-patients-with-an-open-abdomen-a-follow-up-study
#20
Susan E Smith, Susan E Hamblin, Oscar D Guillamondegui, Oliver L Gunter, Bradley M Dennis
BACKGROUND: Neuromuscular blocking agents (NMBA) have been associated with decreased time to fascial closure following damage control laparotomy (DCL). Changes in resuscitation over the last decade bring this practice into question. METHODS: A retrospective cohort study of adults who underwent DCL between 2009 and 2015 was conducted at an ACS-verified level 1 trauma center. The study group (NMBA+) received continuous NMBA within 24 h of DCL. Data collected included demographics, resuscitative fluids, mortality, and complications...
April 18, 2018: American Journal of Surgery
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