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https://www.readbyqxmd.com/read/28971504/relatively-favourable-outcome-after-allogeneic-stem-cell-transplantation-for-bcr-abl1-positive-aml-a-survey-from-the-acute-leukemia-working-party-of-the-european-society-for-blood-and-marrow-transplantation-ebmt
#1
Vladimir Lj Lazarevic, Myriam Labopin, Depei Wu, Ibrahim Yakoub-Agha, Anne Huynh, Per Ljungman, Nicolaas Schaap, Jan J Cornelissen, Natacha Maillard, Pietro Pioltelli, Tobias Gedde-Dahl, Stig Lenhoff, Mohamed Houhou, Jordi Esteve, Mohamad Mohty, Arnon Nagler
The aim of the study was to assess the role of allogeneic stem cell transplantation (SCT) in patients diagnosed with BCR-ABL1-positive acute myeloid leukemia (AML). Fifty-seven patients (median age, 48 years, range: 19-67) with BCR-ABL1 positive AML undergoing SCT were identified. The majority of the patients (70%) received a TKI before the transplant. At SCT 48 patients were in CR (45 in CR1), while 9 patients were transplanted in a more advanced stage of the disease. MRD was negative (BCR-ABL1/ABL<10(4) ) at time of SCT in 36...
October 3, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28952164/linear-decline-of-corrected-platelet-count-increment-within-24%C3%A2-hours-after-platelet-transfusion-in-haematological-patients-a-prospective-observational-study
#2
Sigurdur Benediktsson, Vladimir Lazarevic, Lars Nilsson, Jens Kjeldsen-Kragh, Ulf Schött, Thomas Kander
OBJECTIVES: The aim of this study was to prospectively explore the detailed longitudinal development of platelet increments in patients with chemotherapy-induced bone marrow aplasia during the first 24 hours after platelet transfusion. METHODS: Patients admitted to the Haematology department during 7 months, and fulfilled inclusion criteria were divided into 4 groups: Group 1, patients with acute leukaemia; Group 2, patients after autologous stem cell transplantation (SCT); Group 3, patients after allogeneic SCT; and Group 4, patients given platelet transfusion prior to intervention...
September 26, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28941464/glutamic-acid-as-enhancer-of-protein-synthesis-kinetics-in-hepatocytes-from-old-rats
#3
V Y Brodsky, L A Malchenko, N N Butorina, D S Lazarev Konchenko, N D Zvezdina, T K Dubovaya
Dense cultures of hepatocytes from old rats (~2 years old, body weight 530-610 g) are different from similar cultures of hepatocytes from young rats by the low amplitude of protein synthesis rhythm. Addition of glutamic acid (0.2, 0.4, or 0.6 mg/ml) into the culture medium with hepatocytes of old rats resulted in increase in the oscillation amplitudes of the protein synthesis rhythm to the level of young rats. A similar action of glutamic acid on the protein synthesis kinetics was observed in vivo after feeding old rats with glutamic acid...
August 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28930150/detection-of-bacterial-pathogens-from-broncho-alveolar-lavage-by-next-generation-sequencing
#4
Stefano Leo, Nadia Gaïa, Etienne Ruppé, Stephane Emonet, Myriam Girard, Vladimir Lazarevic, Jacques Schrenzel
The applications of whole-metagenome shotgun sequencing (WMGS) in routine clinical analysis are still limited. A combination of a DNA extraction procedure, sequencing, and bioinformatics tools is essential for the removal of human DNA and for improving bacterial species identification in a timely manner. We tackled these issues with a broncho-alveolar lavage (BAL) sample from an immunocompromised patient who had developed severe chronic pneumonia. We extracted DNA from the BAL sample with protocols based either on sequential lysis of human and bacterial cells or on the mechanical disruption of all cells...
September 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28911091/a-phase-iii-trial-comparing-oral-s-1-cisplatin-and-intravenous-5-fluorouracil-cisplatin-in-patients-with-untreated-diffuse-gastric-cancer
#5
J A Ajani, M Abramov, I Bondarenko, Y Shparyk, V Gorbunova, A Hontsa, N Otchenash, M Alsina, S Lazarev, J Feliu, A Elme, V Esko, K Abdalla, U Verma, F Benedetti, T Aoyama, H Mizuguchi, L Makris, G Rosati
Background: The effect of histology-based treatment regimen on diffuse gastric adenocarcinoma has not been evaluated in clinical trials. This international phase III trial evaluated the efficacy and safety of S-1 (a contemporary oral fluoropyrimidine)/cisplatin versus 5-fluorouracil (5-FU)/cisplatin in chemotherapy-naïve patients with diffuse-type adenocarcinoma involving the gastroesophageal junction or stomach. Patients and methods: Eligibility criteria included untreated, measurable, advanced diffuse adenocarcinoma confirmed by central pathology and performance status of 0-1...
September 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28877841/cognitive-behaviour-therapy-for-health-anxiety-in-medical-patients-champ-a-randomised-controlled-trial-with-outcomes-to-5-years
#6
Peter Tyrer, Paul Salkovskis, Helen Tyrer, Duolao Wang, Michael J Crawford, Simon Dupont, Sylvia Cooper, John Green, David Murphy, Georgina Smith, Sharandeep Bhogal, Shaeda Nourmand, Valentina Lazarevic, Gemma Loebenberg, Rachel Evered, Stephanie Kings, Antoinette McNulty, Yvonne Lisseman-Stones, Sharon McAllister, Kofi Kramo, Jessica Nagar, Steven Reid, Rahil Sanatinia, Katherine Whittamore, Gemma Walker, Aaron Philip, Hilary Warwick, Sarah Byford, Barbara Barrett
BACKGROUND: Health anxiety is an under-recognised but frequent cause of distress that is potentially treatable, but there are few studies in secondary care. OBJECTIVE: To determine the clinical effectiveness and cost-effectiveness of a modified form of cognitive-behaviour therapy (CBT) for health anxiety (CBT-HA) compared with standard care in medical outpatients. DESIGN: Randomised controlled trial. SETTING: Five general hospitals in London, Middlesex and Nottinghamshire...
September 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28862297/synthesis-antimicrobial-activity-and-in-silico-studies-on-thymol-esters
#7
Jelena Lazarević, Ana Kolarević, Aleksandra Đorđević, Gordana Stojanović, Andrija Šmelcerović, Pierangela Ciuffreda, Enzo Santaniello
Derivatisation of parent structure in terpenoids often results in enhancement of biological activity of newly obtained compounds. Thymol, a naturally occurring phenol biosynthesized through the terpene pathway, is a well known biocide with strong antimicrobial attributes and diverse therapeutic activities. We have aimed our study on a single modification of phenolic functionality in thymol in order to obtain a small focused library of twenty thymyl esters, ten of which were new compounds. All compounds were involved in in vitro antimicrobial testing...
September 2017: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/28846586/performance-testing-of-selected-types-of-electronic-personal-dosimeters-in-x-and-gamma-radiation-fields
#8
Nikola Kržanović, Miloš Živanović, Olivera Ciraj-Bjelac, Đorđe Lazarević, Sandra Ćeklić, Srboljub Stanković
Electronic personal dosimeters (EPDs) are increasingly being used alongside conventional thermoluminescent dosimeters to measure the dose of legal record in terms of personal dose equivalent. Therefore, it is of great importance to execute performance tests of these dosimeters in photon fields of various energies and at various angles of incidence. This testing is done in order to simulate the behavior of these dosimeters in realistic multidirectional polyenergetic ionizing radiation fields. Tests of accuracy, linearity, energy response, and angular response have been performed on 10 EPDs from multiple manufacturers...
October 2017: Health Physics
https://www.readbyqxmd.com/read/28807496/cd4-effector-t-cell-differentiation-is-controlled-by-il-15-that-is-expressed-and-presented-in-trans
#9
Adam T Waickman, Davinna L Ligons, SuJin Hwang, Joo-Young Park, Vanja Lazarevic, Noriko Sato, Changwan Hong, Jung-Hyun Park
T cells are both producers and consumers of cytokines, and autocrine cytokine signaling plays a critical role in T cell immunity. IL-15 is a homeostatic cytokine for T cells that also controls inflammatory immune responses. An autocrine role of T cell-derived IL-15, however, remains unclear. Here we examined IL-15 expression and signaling upon effector T cell differentiation in mice, and, surprisingly, found that CD4 T cells did not express IL-15. CD4 T cells lacked Il15 gene reporter activity, did not contain IL-15 transcripts, and did not produce IL-15Rα, the proprietary IL-15 receptor required for IL-15 trans-presentation...
August 11, 2017: Cytokine
https://www.readbyqxmd.com/read/28805812/t-bet-dependent-nkp46-innate-lymphoid-cells-regulate-the-onset-of-th17-induced-neuroinflammation
#10
Brandon Kwong, Rejane Rua, Yuanyuan Gao, John Flickinger, Yan Wang, Michael J Kruhlak, Jinfang Zhu, Eric Vivier, Dorian B McGavern, Vanja Lazarevic
The transcription factor T-bet has been associated with increased susceptibility to systemic and organ-specific autoimmunity, but the mechanism by which T-bet expression promotes neuroinflammation remains unknown. In this study, we demonstrate a cardinal role of T-bet-dependent NKp46(+) innate lymphoid cells (ILCs) in the initiation of CD4(+) TH17-mediated neuroinflammation. Loss of T-bet specifically in NKp46(+) ILCs profoundly impaired the ability of myelin-reactive TH17 cells to invade central nervous system (CNS) tissue and protected the mice from autoimmunity...
October 2017: Nature Immunology
https://www.readbyqxmd.com/read/28798333/clinical-metagenomics-of-bone-and-joint-infections-a-proof-of-concept-study
#11
Etienne Ruppé, Vladimir Lazarevic, Myriam Girard, William Mouton, Tristan Ferry, Frédéric Laurent, Jacques Schrenzel
Bone and joint infections (BJI) are severe infections that require a tailored and protracted antibiotic treatment. Yet, the diagnostic based on culturing samples lacks sensitivity, especially for hardly culturable bacteria. Metagenomic sequencing could potentially address those limitations. Here, we assessed the performances of metagenomic sequencing on 24 BJI samples for the identification of pathogens and the prediction of their antibiotic susceptibility. For monomicrobial samples in culture (n = 8), the presence of the pathogen was confirmed by metagenomics in all cases...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28762187/the-choroid-plexus-is-a-key-cerebral-invasion-route-for-t-cells-after-stroke
#12
Gemma Llovera, Corinne Benakis, Gaby Enzmann, Ruiyao Cai, Thomas Arzberger, Alireza Ghasemigharagoz, Xiang Mao, Rainer Malik, Ivana Lazarevic, Sabine Liebscher, Ali Ertürk, Lilja Meissner, Denis Vivien, Christof Haffner, Nikolaus Plesnila, Joan Montaner, Britta Engelhardt, Arthur Liesz
Neuroinflammation contributes substantially to stroke pathophysiology. Cerebral invasion of peripheral leukocytes-particularly T cells-has been shown to be a key event promoting inflammatory tissue damage after stroke. While previous research has focused on the vascular invasion of T cells into the ischemic brain, the choroid plexus (ChP) as an alternative cerebral T-cell invasion route after stroke has not been investigated. We here report specific accumulation of T cells in the peri-infarct cortex and detection of T cells as the predominant population in the ipsilateral ChP in mice as well as in human post-stroke autopsy samples...
July 31, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28685687/modulators-of-acetylcholinesterase-activity-from-alzheimer-s-disease-to-anti-cancer-drugs
#13
Tamara Lazarević-Pašti, Andreja Leskovac, Tatjana Momić, Sandra Petrović, Vesna Vasić
BACKGROUND: Acetylcholinesterase (AChE) is involved in the termination of impulse transmission by rapid hydrolysis of the neurotransmitter acetylcholine in numerous cholinergic pathways in the central and peripheral nervous systems. The enzyme inactivation leads to acetylcholine accumulation, hyperstimulation of nicotinic and muscarinic receptors, and disrupted neurotransmission. Hence, acetylcholinesterase inhibitors, interacting with the enzyme as their primary target, are applied as relevant drugs for different neurodegenerative diseases (such as Alzheimer's and Parkinson's) as well as toxins...
July 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28679062/clinical-metagenomics-for-the-diagnostic-of-hospital-acquired-infections-promises-and-hurdles
#14
Stéphane Emonet, Vladimir Lazarevic, Jérôme Pugin, Jacques Schrenzel, Etienne Ruppé
No abstract text is available yet for this article.
July 5, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28670574/corrigendum-interaction-of-bacteroides-fragilis-toxin-with-outer-membrane-vesicles-reveals-new-mechanism-of-its-secretion-and-delivery
#15
Natalya B Zakharzhevskaya, Vladimir B Tsvetkov, Anna A Vanyushkina, Anna M Varizhuk, Daria V Rakitina, Victor V Podgorsky, Innokentii E Vishnyakov, Daria D Kharlampieva, Valentin A Manuvera, Fedor V Lisitsyn, Elena A Gushina, Vassili N Lazarev, Vadim M Govorun
[This corrects the article on p. 2 in vol. 7, PMID: 28144586.].
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28667090/lentiviral-vectors-escape-innate-sensing-but-trigger-p53-in-human-hematopoietic-stem-and-progenitor-cells
#16
Francesco Piras, Michela Riba, Carolina Petrillo, Dejan Lazarevic, Ivan Cuccovillo, Sara Bartolaccini, Elia Stupka, Bernhard Gentner, Davide Cittaro, Luigi Naldini, Anna Kajaste-Rudnitski
Clinical application of lentiviral vector (LV)-based hematopoietic stem and progenitor cells (HSPC) gene therapy is rapidly becoming a reality. Nevertheless, LV-mediated signaling and its potential functional consequences on HSPC biology remain poorly understood. We unravel here a remarkably limited impact of LV on the HSPC transcriptional landscape. LV escaped innate immune sensing that instead led to robust IFN responses upon transduction with a gamma-retroviral vector. However, reverse-transcribed LV DNA did trigger p53 signaling, activated also by non-integrating Adeno-associated vector, ultimately leading to lower cell recovery ex vivo and engraftment in vivo These effects were more pronounced in the short-term repopulating cells while long-term HSC frequencies remained unaffected...
September 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28636963/t-bet-runs-interference
#17
Vanja Lazarevic, Susanne Szabo, Laurie H Glimcher
In this issue of Immunity, Iwata et al. (2017) report that the transcription factor T-bet acts as a selective repressor of the type I interferon (IFN) transcriptional program in response to IFN-γ signaling.
June 20, 2017: Immunity
https://www.readbyqxmd.com/read/28631086/nearly-a-third-of-high-grade-dysplasia-and-colorectal-cancer-is-undetected-in-patients-with-inflammatory-bowel-disease
#18
Swathi Eluri, Alyssa M Parian, Berkeley N Limketkai, Christina Y Ha, Steven R Brant, Sharon Dudley-Brown, Jonathan E Efron, Sandy G Fang, Susan L Gearhart, Michael R Marohn, Stephen J Meltzer, Safar Bashar, Brindusa Truta, Elizabeth A Montgomery, Mark G Lazarev
BACKGROUND: It is unclear whether intensive surveillance protocols have resulted in a decreased incidence of colorectal cancer (CRC) in inflammatory bowel disease (IBD). AIMS: To determine the prevalence and characteristics of IBD associated high-grade dysplasia (HGD) or CRC that was undetected on prior colonoscopy. METHODS: This is a single-center, retrospective study from 1994 to 2013. All participants had a confirmed IBD diagnosis and underwent a colectomy with either HGD or CRC found in the colectomy specimen...
June 19, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28625656/semi-automatic-volumetric-measurement-of-response-to-chemotherapy-in-lung-cancer-patients-how-wrong-are-we-using-recist
#19
Vladislav Greenberg, Irina Lazarev, Yigal Frank, Julia Dudnik, Samuel Ariad, Ilan Shelef
OBJECTIVES: Lung cancer typically starts as a near-spherical lesion, but as it grows it may acquire an irregular radiologic formation. RECIST is based on the assumption that tumors are spherical, and consequently, proportional changes of tumor volume and parallel changes in tumor diameter, and vice versa. Hence, a 30% decrease in diameter (2r) implies a 65% decrease of volume, and a 20% increase in diameter implies a 73% increase of volume. MATERIALS AND METHODS: We compared volumetric measurement based on multi-detector CT technology with calculated volume (CV) according to RECIST in a cohort of 43 patients with advanced, non-squamous cell type, lung cancer treated with a combination of platinum and pemetrexed...
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28621883/determination-of-the-serine-palmitoyl-transferase-inhibitor-myriocin-by-electrospray-and-q-trap-mass-spectrometry
#20
Giuseppe Matteo Campisi, Paola Signorelli, Jessica Rizzo, Claudio Ghilardi, Jacopo Antognetti, Anna Caretti, Jelena S Lazarevic, Enrica Strettoi, Elena Novelli, Riccardo Ghidoni, Federico Maria Rubino, Rita Paroni
Myriocin, is a potent inhibitor of serine-palmitoyl-transferase, the first and rate-determining enzyme in the sphingolipids biosynthetic pathway. This study developed, validated and applied a LC-MS/MS method to measure Myriocin in minute specimens of animal tissue. The chemical analog 14-OH-Myriocin is used as the internal standard. The two molecules are extracted from the tissue homogenate by solid-phase extraction, separated by gradient reverse-phase liquid chromatography and measured by negative ion electrospray mass spectrometry in the triple quadrupole...
June 16, 2017: Biomedical Chromatography: BMC
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