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Zhuoyan Li, Myriam Labopin, Fabio Ciceri, Didier Blaise, Johanna Tischer, Gerhard Ehninger, M T Van Lint, Yener Koc, Stella Santarone, Edouard Forcade, Luca Castagna, Emmanuelle Polge, Audrey Mailhol, Annalisa Ruggeri, Mohamad Mohty, Bipin N Savani, Arnon Nagler
Secondary acute myeloid leukemia (sAML) traditionally has inferior outcomes compared to de novo AML. Allogeneic hematopoietic cell transplantation (HCT) is the sole potentially curative therapy. This study analyzes the outcomes for unmanipulated haploidentical HCT (haploHCT) for sAML using the EBMT aute leukemia working group (ALWP) registry. We identified 154 patients with sAML who underwent haploHCT from 2006-2016. Median age at HCT was 60 years with time from diagnosis to HCT 5 months. At transplantation, 69 patients were in first CR and 85 had active disease...
March 14, 2018: American Journal of Hematology
Gerry Q Tonkin-Hill, Leily Trianty, Rintis Noviyanti, Hanh H T Nguyen, Boni F Sebayang, Daniel A Lampah, Jutta Marfurt, Simon A Cobbold, Janavi S Rambhatla, Malcolm J McConville, Stephen J Rogerson, Graham V Brown, Karen P Day, Ric N Price, Nicholas M Anstey, Anthony T Papenfuss, Michael F Duffy
Within the human host, the malaria parasite Plasmodium falciparum is exposed to multiple selection pressures. The host environment changes dramatically in severe malaria, but the extent to which the parasite responds to-or is selected by-this environment remains unclear. From previous studies, the parasites that cause severe malaria appear to increase expression of a restricted but poorly defined subset of the PfEMP1 variant, surface antigens. PfEMP1s are major targets of protective immunity. Here, we used RNA sequencing (RNAseq) to analyse gene expression in 44 parasite isolates that caused severe and uncomplicated malaria in Papuan patients...
March 12, 2018: PLoS Biology
Naoki Asayama, Shinji Nagata, Kenjiro Shigita, Taiki Aoyama, Akira Fukumoto, Shinichi Mukai
Benign colonic anastomotic stenosis sometimes occurs after surgical resection and usually requires surgical or endoscopic dilation. Limited data are available on the effectiveness and safety of the endoscopic radial incision and cutting (RIC) method at sites other than the esophagus. The aim of this retrospective study was to investigate the effectiveness and safety of RIC dilation for severe benign anastomotic colonic stenosis. Subjects were 3 men (median age 72 years, range 65 - 76 years) who developed severe benign anastomotic stenosis after surgical resection for colorectal carcinoma and were subsequently treated by RIC dilation at Hiroshima City Asa Citizens Hospital between May 2014 and December 2016...
March 2018: Endoscopy International Open
António Gaspar, André P Lourenço, Miguel Álvares Pereira, Pedro Azevedo, Roberto Roncon-Albuquerque, Jorge Marques, Adelino F Leite-Moreira
To test whether remote ischaemic conditioning (RIC) as adjuvant to standard of care (SOC) would prevent progression towards heart failure (HF) after ST-elevation myocardial infarction (STEMI). Single-centre parallel 1:1 randomized trial (computerized block-randomization, concealed allocation) to assess superiority of RIC (3 cycles of intermittent 5 min lower limb ischaemia) over SOC in consecutive STEMI patients (NCT02313961, clinical From 258 patients randomized to RIC or SOC, 9 and 4% were excluded because of unconfirmed diagnosis and previously unrecognized exclusion criteria, respectively...
March 7, 2018: Basic Research in Cardiology
Phaik Yeong Cheah, Norbert Steinkamp, Lorenz von Seidlein, Ric N Price
BACKGROUND: The use of placebos in randomised controlled trials is a subject of considerable ethical debate. In this paper we present a set of considerations to evaluate the ethics of placebo controlled trials that includes: social value of the study; need for a randomised controlled trial and placebo; standards of care; risks of harm due to administration of placebo and the harm benefit balance; clinical equipoise; and double standards. We illustrate the application of these considerations using a case study of a large ongoing multicentre, placebo-controlled, double-blinded, randomised trial to determine primaquine anti-relapse efficacy in vivax malaria...
March 6, 2018: BMC Medical Ethics
Laura K Rusie, Carlos Orengo, Diane Burrell, Arthi Ramachandran, Magda Houlberg, Kristin Keglovitz, David Munar, John A Schneider
PrEP retention in care (RIC) is critical to HIV elimination. We reviewed all Howard Brown PrEP patient (n=5,583) from 2012-2017. Among those with 12 months of follow-up, 43% remained in care, yet only 15% had 4/4 quarters with a PrEP visit. Insurance status and comorbidities were drivers of RIC.
March 1, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Basema Balasiny, Matthew D Rolfe, Claire Vine, Charlene Bradley, Jeffrey Green, Jeff Cole
Synthesis of the Escherichia coli YtfE protein, also known as RIC, for the repair of damaged iron centres, is highly induced during anaerobic growth under conditions of nitrosative stress. How YtfE repairs nitrosative damage remains unclear. Contrary to previous reports, we show that strains defective in YtfE that lack the high-affinity NO reductase activity of the hybrid cluster protein (Hcp) are less sensitive to nitrosative stress than isogenic ytfE+ strains, which are extremely sensitive. Evidence that this sensitivity is due to YtfE-dependent release of NO into the cytoplasm includes: relief of growth inhibition by PTIO (2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide), which degrades NO; relief of nitrosative stress by deletion of narG encoding the nitrate reductase that is the major source of NO from nitrite; partial suppression of nitrosative stress due to loss of Hcp function by a further mutation in ytfE; YtfE-dependent loss of aconitase and fumarase activities in the absence of Hcp; and YtfE-dependent relief of NsrR repression of the hcp promoter in response to cytoplasmic NO...
March 1, 2018: Microbiology
Eugene McCloskey, Helena Johansson, Nicholas C Harvey, Lee Shepstone, Elizabeth Lenaghan, Ric Fordham, Ian Harvey, Amanda Howe, Cyrus Cooper, Shane Clarke, Neil Gittoes, Alison Heawood, Richard Holland, Tarnya Marshall, Terence W O'Neill, Tim J Peters, Niamh Redmond, David Torgerson, John A Kanis
The SCreening for Osteoporosis in Older women for the Prevention of fracture [SCOOP] study was a community-based screening intervention, in women aged 70 to 85 years in the UK. In the screening arm, licensed osteoporosis treatments were recommended in women identified to be at high risk of hip fracture using the FRAX risk assessment tool (including BMD measurement). In the control arm, standard care was provided. Screening led to a 28% reduction in hip fractures over 5 years. In this planned post hoc analysis, we wished to examine for interactions between screening effectiveness on fracture outcome (any, osteoporotic and hip fractures) on the one hand and baseline FRAX 10-year probability of hip fracture on the other...
February 26, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
Simona Sestili, Myriam Labopin, Annalisa Ruggeri, Andrea Velardi, Fabio Ciceri, Johan Maertens, Lothar Kanz, Franco Aversa, Philippe Lewalle, Donald Bunjes, Mohamad Mohty, Arnon Nagler
BACKGROUND: T-cell-depleted, haploidentical transplantations (haplos) are commonly offered to patients who have high-risk, acute leukemia in the absence of a human leukocyte antigen (HLA) full-matched donor. METHODS: To determine the effect of transplantation period, the authors divided 308 adults with de novo, acute leukemia who underwent T-cell-depleted haplo from 2005 to 2015 into 2 groups, according the year in which they underwent transplantation (2005-2011 [n = 191] and 2012-2015 [n = 117])...
February 22, 2018: Cancer
Gangling Chen, Mrugesh Thakkar, Christopher Robinson, Sylvain Doré
Novel and innovative approaches are essential in developing new treatments and improving clinical outcomes in patients with ischemic stroke. Remote ischemic conditioning (RIC) is a series of mechanical interruptions in blood flow of a distal organ, following end organ reperfusion, shown to significantly reduce infarct size through inhibition of oxidation and inflammation. Ischemia/reperfusion (I/R) is what ultimately leads to the irreversible brain damage and clinical picture seen in stroke patients. There have been several reports and reviews about the potential of RIC in acute ischemic stroke; however, the focus here is a comprehensive look at the differences in the three types of RIC (remote pre-, per-, and postconditioning)...
2018: Frontiers in Neurology
XingRong Shen, MengJie Diao, ManMan Lu, Rui Feng, PanPan Zhang, Tao Jiang, DeBin Wang
INTRODUCTION: Routine inpatient care (RIC) for patients with cancer forms various pathways of clinical procedures. Although most individual procedures comprising the pathways have been tested via clinical trials, little is known about the collective cost and effectiveness of the pathways as a whole. This study aims at exploring RIC pathways for patients with lung cancer from rural Anhui, China, and their determinants and economic impacts. METHODS AND ANALYSIS: The study adopts a retrospective cohort design and proceeds in five steps...
February 20, 2018: BMJ Open
Thaís Pacheco-Soares, André de Oliveira Carvalho, Jucélia da Silva Araújo, Giliane da Silva de Souza, Olga L T Machado
Ric c1, an allergenic protein from Ricinus communis , is an insect α-amylase inhibitor that has become an occupational allergen. Ric c1 can cross-react with allergens from wheat, soybean, peanut, shrimp, fish, gluten, house dust, tobacco, and air fungus, thereby amplifying the concern and risks caused by Ricinus allergens. Two continuous IgE-binding epitopes were identified in Ric c1, both containing glutamic acid residues involved in IgE-binding and allergic challenges. We produced recombinant Ric c1 (rRic c1) in Escherichia coli , using primers from foliar R...
February 14, 2018: Bioscience Reports
Viraj Pandit, Muhammad Khan, El Rasheid Zakaria, Tally M Largent-Milnes, Mohammad Hamidi, Terence O'Keeffe, Todd W Vanderah, Bellal Joseph
INTRODUCTION: While studies show that single-dose remote ischemic conditioning (RIC) improves outcomes, the effect of continuous (daily) RIC is unknown. Thus, we aimed to investigate the role of continuous-RIC on cognitive and motor function following traumatic brain injury (TBI). METHODS: We subjected 24 male C57BL mice to a cortical-controlled TBI. Two-hours after TBI the animals were randomly allocated to the RIC group (n=12) or the Sham group (n=12). RIC was induced by non-invasive external compression of the hind limb using an occlusive band (six 4-min cycles/24 hours) for consecutive 6 days...
February 14, 2018: Journal of Trauma and Acute Care Surgery
Lucia E Duinhouwer, Nick Beije, Bronno van der Holt, Anita Rijken-Schelen, Cor H Lamers, Judith Somers, Eric Braakman, Jan J Cornelissen
Umbilical cord blood stem cell transplantation (UCBT) is associated with retarded hematopoietic recovery and immune reconstitution and a high infection-related morbidity and mortality, especially after conditioning including anti-thymocyte globulin (ATG). However, data on immune recovery, incidence of infections, and outcome in double UCBT (dUCBT) recipients receiving an ATG-free reduced intensity conditioning (RIC) are lacking. In this study, recovery of lymphocyte subsets, thymopoiesis, and its association with severe infections and clinical outcome was assessed in a group of 55 recipients of a dUCBT ATG-free RIC regimen...
February 9, 2018: Bone Marrow Transplantation
Francesco Saraceni, Myriam Labopin, Rose-Marie Hamladji, Ghulam Mufti, Gerard Socié, Avichai Shimoni, Jeremy Delage, Eric Deconinck, Patrice Chevallier, Didier Blaise, Jaime Sanz, Anne Huynh, Edouard Forcade, Bipin N Savani, Mohamad Mohty, Arnon Nagler
Background: A preparatory regimen consisting of thiotepa-busulfan-fludarabine (TBF) has been associated with reduced relapse in patients with haematological malignancies after haploidentical and cord blood transplants; however, few data exist regarding TBF conditioning in sibling (MSD) and unrelated donor (URD) transplants for AML. Results: Among patients receiving a myeloablative (MAC) regimen, TBF-MAC was associated with significantly lower relapse (HR 0.47, p = 0...
January 9, 2018: Oncotarget
Ric N Price, Nicholas J White
No abstract text is available yet for this article.
February 5, 2018: Lancet Infectious Diseases
Sang-Bing Ong, Khairunnisa Katwadi, Xiu-Yi Kwek, Nur Izzah Ismail, Sang-Ging Ong, Kroekkiat Chinda, Derek J Hausenloy
New treatments are required to improve clinical outcomes in patients with acute myocardial infarction (AMI), for reduction of myocardial infarct (MI) size and preventing heart failure. Following AMI, acute ischemia/reperfusion injury (IRI) ensues, resulting in cardiomyocyte death and impaired cardiac function. Emerging studies have implicated a fundamental role for non-coding RNAs (microRNAs [miRNA], and more recently long non-coding RNAs [lncRNA]) in the setting of acute myocardial IRI. Areas covered: In this article, we discuss the roles of miRNAs and lncRNAs as potential biomarkers and therapeutic targets for the detection and treatment of AMI, review their roles as mediators and effectors of cardioprotection, particularly in the settings of interventions such as ischemic pre- and post-conditioning (IPC & IPost) as well as remote ischemic conditioning (RIC), and highlight future strategies for targeting ncRNAs to reduce MI size and prevent heart failure following AMI...
February 8, 2018: Expert Opinion on Therapeutic Targets
Lisa M Crisalli, Joanne T Hinkle, Christopher C Walling, Mary Sell, Noelle V Frey, Elizabeth O Hexner, Alison W Loren, Selina M Luger, Edward A Stadtmauer, David L Porter, Ran Reshef
Allogeneic hematopoietic stem cell transplantation (HSCT) with reduced intensity conditioning (RIC) offers a curative option for patients with hematologic malignancies who are unable to undergo myeloablative conditioning, but its success is limited by high rates of relapse. Several studies have suggested a role for T-cell doses in peripheral blood stem-cell grafts in RIC HSCT. Since T-cell dose is typically not known until after the collection, and apheresis blood volume is easily modifiable, we hypothesized that higher donor apheresis blood volumes would improve transplant outcomes through an effect on graft composition...
February 2, 2018: Biology of Blood and Marrow Transplantation
Waldemar Schrimpf, Veerle Lemmens, Nick Smisdom, Marcel Ameloot, Don C Lamb, Jelle Hendrix
Raster image cross-correlation spectroscopy (ccRICS) can be used to quantify the interaction affinities between diffusing molecules by analyzing the fluctuations between two-color confocal images. Spectral crosstalk compromises the quantitative analysis of ccRICS experiments, limiting multicolor implementations to dyes with well-separated emission spectra. Here, we remove this restriction by introducing raster spectral image correlation spectroscopy (RSICS), which employs statistical filtering based on spectral information to quantitatively separate signals of fluorophores during spatial correlation analysis...
February 2, 2018: Methods: a Companion to Methods in Enzymology
David D Kim, Donna J Lang, Ric M Procyshyn, Melissa L Woodward, Kai Kaufman, Randall F White, William G Honer, Darren E R Warburton
Studies show that individuals with schizophrenia have impaired cardiovascular fitness (i.e., low peak aerobic power (VO2peak)). It is speculated that antipsychotics with adverse cardiovascular and metabolic profiles, in particular clozapine, have a significant impact on VO2peak. In this cross-sectional study, we examined whether exposure to clozapine was associated with further reduced VO2peak compared with non-clozapine antipsychotics. Thirty participants with chronic schizophrenia or schizoaffective disorder were divided into clozapine and non-clozapine groups...
January 17, 2018: Psychiatry Research
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