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https://www.readbyqxmd.com/read/28636129/the-52-nd-international-conference-on-medicinal-chemistry-rict-2016-of-the-french-medicinal-chemistry-society-sct-held-in-caen-normandy
#1
EDITORIAL
Janos Sapi, Luc Van Hijfte, Patrick Dallemagne
Outstanding Medchem in France: Guest editors Janos Sapi, Luc Van Hjfte, and Patrick Dallemagne look back at the 52(nd) International Conference on Medicinal Chemistry (RICT 2016) held in Caen, France. They discuss the history of the French Medicinal Chemistry Society (Société de Chimie Thérapeutique, SCT) and provide highlights of last year's events, including some key presentations now collected in this Special Issue.
June 21, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28635268/isotope-controlled-selectivity-by-quantum-tunneling-hydrogen-migration-versus-ring-expansion-in-cyclopropylmethylcarbenes
#2
Ashim Nandi, Dennis Gerbig, Peter R Schreiner, Weston Thatcher Borden, Sebastian Kozuch
Using the tunneling-controlled reactivity of cyclopropylmethylcar-bene, we demonstrate the viability of isotope-controlled selectivity (ICS), a novel non-classical control element of chemical reactivity where a molecular system with two conceivable products of tunneling exclusively produces one or the other, depending only on isotopic composition. Our multidimensional small-curvature tunneling (SCT) computations indicate that under cryogenic conditions, 1-methoxycyclopropylmethylcarbene shows rapid H-migration to 1-methoxy-1-vinylcyclopropane, whereas deuterium-substituted 1-methoxycyclopropyl-d3-methylcarbene undergoes ring expansion to 1-d3-methylcyclobutene...
June 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28633341/swallowing-computed-tomography-dose-estimation-in-a-phantom-study-conducted-at-various-patient-reclining-angles
#3
Masanao Kobayashi, Yasuki Asada, Kosuke Matsubara, Kazuyuki Minami, Shouichi Suzuki, Yuta Matsunaga, Tomonobu Haba, Ai Kawaguchi, Tomihiko Daioku, Hiroshi Toyama, Ryoichi Kato
Swallowing computed tomography (SCT) is a relatively new technique for the morphological and kinematic analyses of swallowing. However, no optimal scan protocols are available till date. We conducted the present SCT study to estimate the patient dose at various patient reclining positions. A RANDO phantom with a thermoluminescent dosemeter was placed on a hard Table board in a semi-reclining position at the centre and off-centre. According to predetermined scan protocols, irradiation was performed to acquire scanograms at reclining angles of 55° and 65°...
June 15, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28631269/missing-hla-c-group-1-ligand-in-patients-with-aml-and-mds-is-associated-with-reduced-risk-of-relapse-and-better-survival-after-allogeneic-stem-cell-transplantation-with-fludarabine-and-treosulfan-reduced-toxicity-conditioning
#4
Avichai Shimoni, Luca Vago, Massimo Bernardi, Ronit Yerushalmi, Jacopo Peccatori, Raffaella Greco, Noga Shem-Tov, Alessandro Lo Russo, Ivetta Danylesko, Arie Apel, Chiara Bonini, Maria Teresa Lupo Stanghellini, Arnon Nagler, Fabio Ciceri
Reduced-toxicity conditioning with fludarabine and treosulfan is a dose-intensive regimen with enhanced anti-leukemia effect and acceptable toxicity in AML/MDS. HLA-C regulates natural-killer (NK) cell function by inhibiting Killer immunoglobulin-like receptors (KIR) and is divided into C1 and C2 epitopes. The missing-ligand theory suggests that missing recipient KIR ligands drives NK-alloreactivity after SCT, in the absence of HLA-mismatch by activating unlicensed donor NK cells. We analyzed SCT outcomes in 203 patients with AML/MDS, median age 58 years, given SCT from matched-siblings (n=97) or matched-unrelated donors (n=106), using two treosulfan doses (total 36 or 42 gr/m2)...
June 19, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28630092/characterization-of-high-avidity-cytomegalovirus-specific-t-cells-with-differential-tetramer-binding-coappearing-after-allogeneic-stem-cell-transplantation
#5
Justyna Ogonek, Kriti Verma, Christian Schultze-Florey, Pavankumar Varanasi, Susanne Luther, Patrick Schweier, Wolfgang Kühnau, Gudrun Göhring, Elke Dammann, Michael Stadler, Arnold Ganser, Ulrike Koehl, Christian Koenecke, Eva M Weissinger, Lothar Hambach
CMV reactivation is a major complication after allogeneic stem cell transplantation (SCT). Immune reconstitution of CMV-specific CTLs (CMV-CTLs) is essential for virus control. During CMV-CTL monitoring using mutated HLA/CMV tetramers selectively detecting high-avidity T cells, we observed coappearance of CMV-CTLs with low (CMV tet(low) CTLs) and high tetramer binding (CMV tet(high) CTLs) in 53/115 CMV IgG(+) patients stem cell transplanted from CMV IgG(+) donors. However, the relevance of these coappearing differentially tetramer binding ("dual") CMV-CTLs was unclear...
June 19, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28617238/public-health-policy-in-support-of-insurance-coverage-for-smoking-cessation-treatments
#6
Robert Schwartz, Farzana Haji, Alexey Babayan, Christopher Longo, Roberta Ferrence
Insurance coverage for evidence-based smoking cessation treatments (SCTs) promotes uptake and reduces smoking rates. Published studies in this area are based in the US where employers are the primary source of health insurance. In Ontario, Canada, publicly funded healthcare does not cover SCTs, but it can be supplemented with employer-sponsored benefit plans. This study explores factors affecting the inclusion/exclusion of smoking cessation (SC) benefits. In total, 17 interviews were conducted with eight employers (auto, retail, banking, municipal and university industries), four health insurers, two government representatives and three advisors/consultants...
May 2017: Healthcare Policy, Politiques de Santé
https://www.readbyqxmd.com/read/28616559/gender-differences-in-the-prevalence-of-coronary-artery-tortuosity-and-its-association-with-coronary-artery-disease
#7
Joseph Chiha, Paul Mitchell, Bamini Gopinath, George Burlutsky, Pramesh Kovoor, Aravinda Thiagalingam
BACKGROUND: Little is known about the significance of severe coronary tortuosity (SCT) despite it being a relatively common finding on coronary angiography. We examined whether the presence of tortuosity was influenced by gender or cardiac risk factors. METHODS AND RESULTS: We examined 870 patients (Men = 589, Women = 281) who presented to Westmead Hospital, Sydney, Australia for invasive coronary angiography for the assessment of chest pain due to suspected CAD...
March 2017: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28613996/personal-resilience-resources-predict-post-stem-cell-transplant-cancer-survivors-psychological-outcomes-through-reductions-in-depressive-symptoms-and-meaning-making
#8
Rebecca A Campo, Lisa M Wu, Jane Austin, Heiddis Valdimarsdottir, Christine Rini
This longitudinal study examined whether posttransplant cancer survivors (N = 254, 9 months to 3 years after stem cell transplant treatment (SCT)) with greater personal resilience resources demonstrated better psychological outcomes and whether this could be attributed to reductions in depressive symptoms and/or four meaning making processes (searching for and finding reasons for one's illness; searching for and finding benefit from illness). Hierarchical linear regression analyses examined associations of survivors' baseline personal resilience resources (composite variable of self-esteem, mastery, and optimism), which occurred an average 1...
June 14, 2017: Journal of Psychosocial Oncology
https://www.readbyqxmd.com/read/28612859/kinetics-and-branching-fractions-of-the-hydrogen-abstraction-reaction-from-methyl-butenoates-by-h-atoms
#9
Xiaoyu Li, Xiaoqing You, Chung K Law, Donald G Truhlar
In order to explore the hydrogen abstraction reaction kinetics of unsaturated methyl esters by hydrogen atoms, we selected two molecules for study, in particular methyl 3-butenoate and methyl 2-butenoate, whose C[double bond, length as m-dash]C double bonds are at different locations. We first determined an accurate and efficient electronic structure method for the investigation by considering eight hydrogen abstraction reactions and comparing their barrier heights and reaction energies computed using several exchange-correlation density functionals to those obtained from CCSD(T)-F12a/jun-cc-pVTZ coupled cluster calculations...
June 14, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28611328/volumetric-analysis-of-root-filling-with-cold-lateral-compaction-obtura-ii-thermafil-and-calamus-using-spiral-computerized-tomography-an-in-vitro-study
#10
Divya Jindal, Medhavi Sharma, Deepak Raisingani, Anupama Swarnkar, Mridu Pant, Rachit Mathur
AIM: The aim of the present study is volumetric analysis of root canal filling with cold lateral compaction, Obtura II, Thermafil, and Calamus using spiral computerized tomography (SCT). MATERIALS AND METHODS: Root canals of eighty mandibular premolars were instrumented using rotary ProTaper, and the volume of the canal space was measured using spiral computerized tomography (SCT). The teeth were divided into four groups of twenty teeth each, and root canals filled by lateral compaction technique, Thermafil carriers, Obtura II, and Calamus techniques, respectively...
March 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28611235/improvement-in-exercise-duration-lung-function-and-well-being-in-g551d-cystic-fibrosis-patients-a-double-blind-placebo-controlled-randomised-cross-over-study-with-ivacaftor
#11
Dominic T Keating, Deirdre Edgeworth, Matthew Ellis, Brenda Button, Elyssa Williams, Denise Clark, Audrey Tierney, Stephane Heritier, Anastase Kotsimbos, John Wilson
G551D , a mutation of the cystic fibrosis transmembrane conductance regulator (CFTR) gene, results in impaired chloride channel function in cystic fibrosis (CF) with multiple end-organ manifestations. The effect of ivacaftor, a CFTR-potentiator, on exercise capacity in cystic fibrosis (CF) is unknown. Twenty G551D-CF patients were recruited to a single-centre, double-blind, placebo-controlled, 28-day crossover study of ivacaftor. Variables measured included percentage change from baseline (%Δ) of VO2max (maximal oxygen consumption, primary outcome) during cardiopulmonary exercise testing (CPET), relevant other CPET physiological variables, lung function, BMI, sweat chloride, and disease specific health related quality of life (QOL) measures (CFQ-R and Alfred Wellness (AWEscore))...
June 13, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28610635/cellular-function-reinstitution-of-offspring-red-blood-cells-cloned-from-the-sickle-cell-disease-patient-blood-post-crispr-genome-editing
#12
Jianguo Wen, Wenjing Tao, Suyang Hao, Youli Zu
BACKGROUND: Sickle cell disease (SCD) is a disorder of red blood cells (RBCs) expressing abnormal hemoglobin-S (HbS) due to genetic inheritance of homologous HbS gene. However, people with the sickle cell trait (SCT) carry a single allele of HbS and do not usually suffer from SCD symptoms, thus providing a rationale to treat SCD. METHODS: To validate gene therapy potential, hematopoietic stem cells were isolated from the SCD patient blood and treated with CRISPR/Cas9 approach...
June 13, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28604667/single-agent-gvhd-prophylaxis-with-tacrolimus-after-post-transplant-high-dose-cyclophosphamide-is-a-valid-option-for-haploidentical-transplantation-in-adults-with-hematological-malignancies
#13
A Esquirol, M J Pascual, M Ortiz, J L Piñana, C Ferra, I Garcia Cadenas, I Vilades, S Brunet, R Martino, J Sierra
Eighty-one patients with high-risk hematological malignancies received unmanipulated haploidentical stem cell transplants (haploSCT) using the same protocol at four Spanish institutions. The conditioning regimen was thiotepa, busulfan and fludarabine; following bone marrow or peripheral blood infusion. GvHD prophylaxis with high-dose cyclophosphamide on days +3 and +4, and IV tacrolimus from day +5 was administered. 62% were in complete remission, 17% had received previous allogeneic SCT and 44% had a high-very high refined disease risk index...
June 12, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28603071/evaluation-of-performance-status-and-hematopoietic-cell-transplantation-specific-co-morbidity-index-on-unplanned-admission-rates-in-patients-with-multiple-myeloma-undergoing-outpatient-autologous-stem-cell-transplantation
#14
C Obiozor, D P Subramaniam, C Divine, L Shune, A K Singh, T L Lin, S Abhyankar, G J Chen, J McGuirk, S Ganguly
Although, outpatient autologous stem cell transplant (ASCT) is safe and feasible in most instances, some patients undergoing planned outpatient transplantation for multiple myeloma (MM) will need inpatient admission for transplant related complications. We aim to evaluate the difference, if any, between outpatient and inpatient ASCT cohorts of MM patients in terms of admission rate, transplant outcome, and overall survival. We also plan to assess if hematopoietic cell transplantation-comorbidity index (HCT-CI) and Karnofsky Performance Status (KPS) could predict unplanned admissions after adjusting for confounding factors...
June 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28603070/clinical-utility-of-quantitative-pcr-for-chimerism-and-engraftment-monitoring-after-allogeneic-stem-cell-transplantation-for-hematologic-malignancies
#15
Müberra Ahci, Karin Stempelmann, Ulrike Buttkereit, Pietro Crivello, Mirko Trilling, Andreas Heinold, Nina Kristin Steckel, Michael Koldehoff, Peter A Horn, Dietrich W Beelen, Katharina Fleischhauer
Although quantitative PCR (qPCR) has been explored for chimerism monitoring after allogeneic stem cell transplantation (SCT), evidence regarding its clinical utility compared to standard short tandem repeat (STR) is still limited. We retrospectively studied commercial qPCR and STR chimerism with respective positivity thresholds of 0.1% and 1%, in 359 peripheral blood (PB) and 95 bone marrow (BM) samples from 30 adult patients after first HLA-matched SCT for myeloid malignancies or acute lymphatic leukemia. Concordance between the two methods was 79...
June 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28601677/impact-of-stem-cell-graft-on-early-viral-infections-and-immune-reconstitution-after-allogeneic-transplantation-in-adults
#16
Marina Illiaquer, Berthe-Marie Imbert-Marcille, Thierry Guillaume, Lucie Planche, Marie Rimbert, Céline Bressollette-Bodin, Amandine Le Bourgeois, Pierre Peterlin, Alice Garnier, Claire Le Houerou, Philippe Moreau, Mohamad Mohty, Patrice Chevallier
BACKGROUND: Viral infections are well-known complications after allogeneic stem cell transplant (allo-SCT). OBJECTIVES: We compared prospectively incidences of DNAemia and active infections (AI) for five opportunistic viruses (Human Herpesvirus 6 (HHV-6), Epstein-Barr virus (EBV), BK polyomavirus (BKPyV), Cytomegalovirus (CMV) and Adenovirus (ADV)) and kinetics of immune reconstitution (IR) in adults receiving either double umbilical cord blood (dUCB group) or unrelated peripheral blood stem cell (uPBSC group) allo-SCT after a reduced-intensity conditioning (RIC) regimen...
May 31, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28598565/atypical-teratoid-rhabdoid-tumors-in-children-treated-with-multimodal-therapies-the-necessity-of-upfront-radiotherapy-after-surgery
#17
Jeongshim Lee, Dong-Seok Kim, Jung Woo Han, Chang-Ok Suh
BACKGROUND: Atypical teratoid/rhabdoid tumor (ATRT) is a rare malignant pediatric brain tumor with a dismal prognosis. We evaluated the efficacy of multimodal therapy in children with ATRT. PROCEDURE: Nine children diagnosed with cranial ATRT, who received multimodal therapy between 2005 and 2014, including surgical resection followed by radiotherapy (RT), systemic chemotherapy (CT), and high-dose chemotherapy/stem cell transplantation (HDCT/SCT), were analyzed retrospectively...
June 9, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28598058/successful-treatment-of-bk-virus-hemorrhagic-cystitis-hc-post-allogenic-hematopoietic-stem-cell-transplantation-with-low-dose-cidofovir
#18
R Arora, Jasmita, M Singh, A Garg, M Gupta, N Gupta
BK virus (BKV) hemorrhagic cystitis (HC) is a serious cause of morbidity and mortality after allogeneic hematopoietic SCT (allo-HSCT) in patients with hematological malignancies. Around half of allogenic HSCT patients present with BKV viruria at some point after HSCT; about 5-40% of these patients subsequently develop active HC. Supportive care including bladder irrigation, blood transfusions and symptomatic pain management remains the mainstay of therapy; the acyclic nucleoside analogue cidofovir is currently the front-line drug for BKV-HC treatment...
May 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28592761/acute-lymphoblastic-leukemia-pathophysiology-and-current-therapy
#19
Kiyotoshi Imai
Acute lymphoblastic leukemia (ALL) is seen in both children and adults, but its incidence peaks between 2 and 5 years and also increases in the older population. Although most children can be cured, the prognosis of adults with ALL remains poor. Recent identification of novel genetic alterations and sequence mutations has contributed to the elucidation of the pathogenesis of ALL. The World Health Organization classification was revised in 2016. ALL was included within the subgroup of myeloid neoplasms and acute leukemia...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28587634/sinapic-acid-or-its-derivatives-interfere-with-abscisic-acid-homeostasis-during-arabidopsis-thaliana-seed-germination
#20
Baodi Bi, Jingliang Tang, Shuang Han, Jinggong Guo, Yuchen Miao
BACKGROUND: Sinapic acid and its esters have broad functions in different stages of seed germination and plant development and are thought to play a role in protecting against ultraviolet irradiation. To better understand the interactions between sinapic acid esters and seed germination processes in response to various stresses, we analyzed the role of the plant hormone abscisic acid (ABA) in the regulation of sinapic acid esters involved in seed germination and early seedling growth...
June 6, 2017: BMC Plant Biology
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