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https://www.readbyqxmd.com/read/29232571/investigating-the-excited-state-optical-properties-and-origin-of-large-stokes-shift-in-benz-c-d-indole-n-heteroarene-bf2-dyes-with-ab-initio-tools
#1
Yogesh Gawale, Nagaiyan Sekar
Density Functional Theory and Time Dependent Density Functional Theory computations reveal experimental trends accurately and provide an insight into the origin of red shifted optical spectra, large Stokes shift, nonlinear optical responses and quantitative description of the singlet-triplet energy gap of recently synthesized highly fluorescent membrane permeable benz[c,d]indole N-heteroarene BF2 rigidified BBN and BBC dyes. Our results benchmark the importance of the DFT functionals and polarization functions using the accurate basis set for the calculations of excitation energies, band gaps, dipole moment, non-linear optical properties and geometrical parameters...
December 7, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29221445/study-protocol-of-hgcsg1404-snow-study-a-phase-i-ii-trial-of-combined-chemotherapy-of-s-1-nab-paclitaxel-and-oxaliplatin-administered-biweekly-to-patients-with-advanced-gastric-cancer
#2
Yasuyuki Kawamoto, Yoshito Komatsu, Satoshi Yuki, Kentaro Sawada, Tetsuhito Muranaka, Kazuaki Harada, Hiroshi Nakatsumi, Hiraku Fukushima, Atsushi Ishiguro, Masayoshi Dazai, Kazuteru Hatanaka, Michio Nakamura, Ichiro Iwanaga, Minoru Uebayashi, Susumu Sogabe, Yoshimitsu Kobayashi, Takuto Miyagishima, Kota Ono, Naoya Sakamoto, Yuh Sakata
BACKGROUND: In Japan, S-1 plus cisplatin (SP) regimen has become a standard therapy for patients with advanced gastric cancer. Moreover, the S-1 plus oxaliplatin regimen is now a standard treatment. Nab-paclitaxel was developed for chemotherapy of gastric cancer in Japanese clinical practice. Nab-paclitaxel, created with albumin-bound paclitaxel particles, has high transferability to tumour tissues and does not cause hypersensitivity reactions because of a different chemical composition compared with docetaxel and paclitaxel...
December 8, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29217780/from-transplant-to-novel-cellular-therapies-in-multiple-myeloma-emn-guidelines-and-future-perspectives
#3
Francesca Gay, Monika Engelhardt, Evangelos Terpos, Ralph Wäsch, Luisa Giaccone, Holger W Auner, Jo Caers, Martin Gramatzki, Niels van de Donk, Stefania Oliva, Elena Zamagni, Laurent Garderet, Christian Straka, Roman Hajek, Heinz Ludwig, Hermann Einsele, Meletios Dimopoulos, Mario Boccadoro, Nicolaus Kröger, Michele Cavo, Hartmut Goldschmidt, Benedetto Bruno, Pieter Sonneveld
Survival of myeloma patients has greatly improved with the use of autologous stem cell transplantation and novel agents, such as proteasome inhibitors, immunomodulatory drugs and monoclonal antibodies. Compared to bortezomib- and lenalidomide-based regimens alone, the addition of high-dose melphalan followed by autologous transplantation significantly improves progression-free survival; although an overall survival benefit was not observed in all trials. Moreover, follow-up of recent trials is still too short to show any difference in survival...
December 7, 2017: Haematologica
https://www.readbyqxmd.com/read/29199659/induction-chemotherapy-in-locally-advanced-t4b-oral-cavity-squamous-cell-cancers-a-regional-cancer-center-experience
#4
A H Rudresha, T Chaudhuri, K C Lakshmaiah, K G Babu, L Dasappa, L A Jacob, M C Suresh Babu, K N Lokesh, L K Rajeev
OBJECTIVES: The present study aimed to investigate the efficacy, toxicity, and impact of induction chemotherapy (IC) in locally advanced T4b oral cavity squamous cell cancers (OSCCs). MATERIALS AND METHODS: Patients diagnosed with locally advanced T4b OSCC from January 2013 to October 2016 at our center, who received 2-3 cycles of IC and then assessed for resectability, were reviewed retrospectively. Patients' profile, response, and toxicity of IC, resectability status, and overall survival (OS) were evaluated...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29198078/targeting-vegf-receptors-with-non-neutralizing-cyclopeptides-for-imaging-applications
#5
Luisa Calvanese, Andrea Caporale, Giuseppina Focà, Emanuela Iaccarino, Annamaria Sandomenico, Nunzianna Doti, Ivana Apicella, Giuseppina Maria Incisivo, Sandro De Falco, Lucia Falcigno, Gabriella D'Auria, Menotti Ruvo
Pharmacological strategies aimed at preventing cancer growth are in most cases paralleled by diagnostic investigations for monitoring and prognosticating therapeutic efficacy. A relevant approach in cancer is the suppression of pathological angiogenesis, which is principally driven by vascular endothelial growth factor (VEGF) or closely related factors and by activation of specific receptors, prevailingly VEGFR1 and VEGFR2, set on the surface of endothelial cells. Monitoring the presence of these receptors in vivo is henceforth a way to predict therapy outcome...
December 2, 2017: Amino Acids
https://www.readbyqxmd.com/read/29189851/plasmon-mediated-cancer-phototherapy-the-combined-effect-of-thermal-and-photodynamic-processes
#6
Loredana Ricciardi, Lucie Sancey, Giovanna Palermo, Roberto Termine, Antonio De Luca, Elisabeta I Szerb, Iolinda Aiello, Mauro Ghedini, Giuseppe Strangi, Massimo La Deda
A nanoplatform for simultaneous cellular imaging, and photodynamic and photothermal therapies has been designed and realized by embedding a purposely synthesized highly luminescent water soluble iridium(iii) compound into gold core-silica shell nanoparticles. These multifunctionalities arise mainly from the photophysical properties of the cyclometalated complex: (i) the heavy atom promotes, through excited triplet state formation, energy transfer processes towards molecular oxygen, with the generation of 1O2 (photodynamic effect); (ii) the overlap of the iridium(iii) complex emission band with the plasmonic resonance of gold nanostructures allows excitation energy transfer towards the metallic core (photothermal effect); (iii) the remarkable iridium(iii) complex luminescence feature, which is preserved despite energy transfer processes, makes the whole system an efficient luminescent bio-probe (imaging)...
November 30, 2017: Nanoscale
https://www.readbyqxmd.com/read/29164478/excited-state-and-non-linear-optical-properties-of-nir-absorbing-%C3%AE-thiophene-fused-bf2-azadipyrromethene-dyes-computational-investigation
#7
Yogesh Gawale, Lydia Rhyman, Mohamed I Elzagheid, Ponnadurai Ramasami, Nagaiyan Sekar
Density functional theory and time-dependent density functional theory computations were used to understand the electronic and photophysical parameters of NIR β-thiophene-fused BF2-azadipyrromethene dyes. The computed data are in good agreement with those obtained experimentally and they provide insights into the origin of red shifted optical spectra compared to the parent aza-BODIPY, low Stokes shift, non-linear optical responses and quantitative description of the singlet-triplet energy gap. The resultant decrease in the HOMO - LUMO energy gap is responsible for the red shift...
November 21, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/29146097/descriptive-study-of-current-therapeutic-practices-clinical-reproductive-findings-and-incidence-of-pregnancy-loss-in-intensively-managed-thoroughbred-mares
#8
B V Rose, M Firth, B Morris, J M Roach, D C Wathes, K L P Verheyen, A M de Mestre
Therapeutic practices in equine reproductive medicine have dramatically evolved over the last 20 years but current usage is not described. The aims of this study were to provide a description of medication use and clinical findings of reproductive examinations alongside measures of reproductive efficiency in thoroughbreds. A prospective cohort study was conducted in the 2013 and 2014 breeding seasons. Mare and stallion details, information on veterinary interventions and findings of reproductive ultrasound scans were collected using questionnaires and entered into a custom-designed Microsoft Access database...
November 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29143893/the-role-of-systemic-therapy-in-resectable-gastric-and-gastro-oesophageal-junction-cancer
#9
REVIEW
Elizabeth Cartwright, David Cunningham
Approximately 20% of patients with cancer of the stomach or gastro-oesophageal junction (GOJ) present with resectable disease. Long-term outcome after surgery alone in these patients is poor, and a combined treatment approach is the standard of care. The two approaches to managing patients with cancer of the GOJ are perioperative chemotherapy or preoperative chemoradiotherapy. Based upon the most recent evidence, patients treated with a perioperative approach and deemed suitable for a triplet regimen should be considered for pre- and post-operative FLOT (5-fluorouracil [5-FU], leucovorin, oxaliplatin and docetaxel) and those suitable for a doublet regimen should be considered for a fluoropyrimidine/platinum combination such as capecitabine and oxaliplatin...
November 16, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/29100169/the-next-era-of-treatment-for-hormone-receptor-positive-her2-negative-advanced-breast-cancer-triplet-combination-based-endocrine-therapies
#10
REVIEW
Javier Cortés, Seock-Ah Im, Esther Holgado, Jose M Perez-Garcia, Peter Schmid, Mariana Chavez-MacGregor
Until recently, the standard of care for hormone receptor-positive (HR+) breast cancer was single-agent endocrine therapy, which aims to prevent estrogen receptor signaling. This therapeutic strategy has extended survival without the toxicity associated with chemotherapy, but primary endocrine therapy resistance is common, and secondary resistance develops over time. Adjunct downstream inhibition of the cyclin-dependent kinase (CDK)4/6 pathway, intended to delay and prevent endocrine therapy resistance, has further extended progression-free survival in patients receiving endocrine therapy; however, resistance still eventually develops in these patients...
December 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29052093/emerging-small-molecule-approaches-to-enhance-the-antimyeloma-benefit-of-proteasome-inhibitors
#11
James J Driscoll, Magen Brailey
Multiple myeloma (MM) is a clonal plasma cell malignancy which, despite recent treatment advances, remains incurable in the vast majority of the over 118,000 patients in the USA afflicted with this disease. Treatment of MM has dramatically improved in the past decade with the introduction of new drugs into therapeutic strategies in both the frontline and relapse settings that has led to a significant improvement in the median overall survival (OS). These drugs have been incorporated into clinical guidelines and transformed the treatment approach to MM...
October 19, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/29043514/efficacy-of-a-triplet-and-doublet-based-chemotherapy-as-first-line-therapy-in-patients-with-her2-negative-metastatic-gastric-cancer-a-retrospective-analysis-from-the-clinical-practice
#12
Maria Maddalena Laterza, Luca Pompella, Angelica Petrillo, Giuseppe Tirino, Annalisa Pappalardo, Michele Orditura, Teresa Troiani, Fortunato Ciardiello, Natale Di Martino, Ferdinando De Vita
The best choice of chemotherapy regimen for patients with metastatic gastric cancer is still debated. Although several studies support a superior efficacy of a triplet chemotherapy regimen over a doublet-based regimen, the magnitude of this benefit appears small and accompanied by an increased toxicity. Based on this background, we evaluated the outcome of patients with HER2-negative metastatic gastric cancer (mGC) who received in the clinical practice a triplet or doublet regimen as first-line therapy. A total of 165 patients (pts) with HER2-negative mGC treated outside of clinical trials at our department with FOLFOX-4 or ECX from 2012 and 2015 were included in our retrospective analysis: FOLFOX-4: 86 pts; ECX: 79 pts...
October 17, 2017: Medical Oncology
https://www.readbyqxmd.com/read/29038850/a-triplet-combination-with-capecitabine-oxaliplatin-irinotecan-xeloxiri-plus-cetuximab-as-first-line-therapy-for-patients-with-metastatic-colorectal-cancer-a-dose-escalation-study
#13
Yasushi Sato, Masahiro Hirakawa, Hiroyuki Ohnuma, Minoru Takahashi, Tetsuro Okamoto, Koichi Okamoto, Hiroshi Miyamoto, Naoki Muguruma, Tomohisa Furuhata, Ichiro Takemasa, Junji Kato, Tetsuji Takayama
PURPOSE: The addition of cetuximab to triplet chemotherapy can increase treatment efficacy for patients with metastatic colorectal cancer (mCRC). We explored the dose-limiting toxicity and feasibility of a triweekly capecitabine, oxaliplatin, irinotecan, plus cetuximab (XELOXIRI plus cetuximab) regimen in patients with wild-type KRAS mCRC. METHODS: Patients received oxaliplatin (100 mg/m(2), day 1), capecitabine (1700 mg/m(2) per day from day 2 to 15), irinotecan (100, 120, and 150 mg/m(2) for dose levels 1, 2, 3, respectively, on day 1), and cetuximab (400 mg/m(2), day 1 and, thereafter, 250 mg/m(2) every week), repeated every 3 weeks...
October 16, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28991441/electrochemical-spectroscopic-and-1-o2-sensitization-characteristics-of-synthetically-accessible-linear-tetrapyrrole-complexes-of-palladium-and-platinum
#14
Andrea M Potocny, Allen J Pistner, Glenn P A Yap, Joel Rosenthal
The synthesis, electrochemistry, and photophysical characterization of a 10,10-dimethyl-5,15-bis(pentafluorophenyl)biladiene (DMBil1) linear tetrapyrrole supporting Pd(II) or Pt(II) centers is presented. Both of these nonmacrocyclic tetrapyrrole platforms are robust and easily prepared via modular routes. X-ray diffraction experiments reveal that the Pd[DMBil1] and Pt[DMBil1] complexes adopt similar structures and incorporate a single Pd(II) and Pt(II) center, respectively. Additionally, electrochemical experiments revealed that both Pd[DMBil1] and Pt[DMBil1] can undergo two discrete oxidation and reduction processes...
November 6, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28957942/purification-and-characterization-of-a-new-highly-pure-double-virus-inactivated-von-willebrand-factor-concentrate
#15
Filippo Mori, Marcella Maddaluno, Claudio Farina
: Desmopressin-unresponsive von Willebrand disease patients are treated with substitutive therapy, with both pure von Willebrand factor (vWF) and factor VIII/vWF concentrates. We developed a new purification process, easily scalable to industrial level, to obtain a double virus inactivated highly pure vWF. VWF was purified starting from a waste fraction of already in use human plasma-derived factor VIII manufacturing procedure, using only one anionic-exchange chromatographic step. After chromatography, the product was dialyzed, lyophilized, and heat treated...
September 27, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28948001/emerging-drugs-and-combinations-to-treat-multiple-myeloma
#16
REVIEW
Alessandra Larocca, Roberto Mina, Francesca Gay, Sara Bringhen, Mario Boccadoro
In the past few years, multiple targeted therapies and immunotherapies including second generation immunomodulatory drugs (pomalidomide) and proteasome inhibitors (carfilzomib, ixazomib), monoclonal antibodies and checkpoint inhibitors were approved for the treatment of myeloma or entered advanced phases of clinical testing. These agents showed significant activity in advanced myeloma and increased the available treatment strategies. Pomalidomide is well-tolerated and effective in patients with relapsed/refractory multiple myeloma who have exhausted any possible treatment with lenalidomide and bortezomib...
September 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28925369/generation-of-a-gene-corrected-isogenic-control-ipsc-line-from-cystic-fibrosis-patient-specific-ipscs-homozygous-for-p-phe508del-mutation-mediated-by-talens-and-ssodn
#17
Sylvia Merkert, Christien Bednarski, Gudrun Göhring, Toni Cathomen, Ulrich Martin
Cystic fibrosis (CF) is a monogenetic disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene, which affects multiple organs. Human induced pluripotent stem cells (iPSCs) derived from CF patients and the generation of isogeneic gene-corrected control cell lines enable disease modelling, drug discovery or toxicological studies and therefore the development of CF patient-specific therapies. We have previously generated a hiPSC line from a CF patient homozygous for the p...
August 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28917269/triplet-folfoxiri-versus-doublet-folfox-or-folfiri-backbone-chemotherapy-as-first-line-treatment-of-metastatic-colorectal-cancer-a-systematic-review-and-meta-analysis
#18
REVIEW
Rui Pedro Marques, Gonçalo S Duarte, Carmelo Sterrantino, Helena Luna Pais, António Quintela, Ana Paula Martins, João Costa
Uncertainty exists regarding the comparative effectiveness of triplet chemotherapy (FOLFOXIRI) as backbone first-line chemotherapy for metastatic colorectal cancer (mCRC). We conducted a systematic review and meta-analysis of randomized-controlled trials (RCTs) comparing triplet versus doublet chemotherapy (FOLFOX or FOLFIRI) as first-line therapy in mCRC. Methods and reporting followed PRISMA and SAMPL guidelines. Eight RCTs were included, comprising 1732 patients. In pooled analysis, FOLFOXIRI was associated with improvements in efficacy outcomes, notably with a 25% survival increase (95%CI: 10-37%)...
October 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28900499/profiling-chemotherapy-associated-myelotoxicity-among-chinese-gastric-cancer-population-receiving-cytotoxic-conventional-regimens-epidemiological-features-timing-predictors-and-clinical-impacts
#19
Ci Zhu, Yan Wang, Xicheng Wang, Chunmei Bai, Dan Su, Bing Cao, Jianming Xu
Objectives: We aim to evaluate the epidemiological features, timing, predictors and clinical impacts of chemotherapy-associated myelotoxicity in Chinese gastric cancer population receiving six established cytotoxic conventional regimens (CF/XP, EC(O)F/EC(O)X, DC(O)F/DC(O)X, PC(O)F/PC(O)X, FOLFOX4, or mFOLFOX7/XELOX). Patients and methods: A 4-year multicenter, prospective, observational study was conducted in multiple hospitals/institutes spanning three major regions in China. A total of 1,285 patients with gastric cancer, treated with six selected regimens between 2010 and 2014 were included...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28868533/pet-based-bisbodipy-photosensitizers-for-highly-efficient-excited-triplet-state-and-singlet-oxygen-generation-tuning-photosensitizing-ability-by-dihedral-angles
#20
Xian-Fu Zhang, Xudong Yang, Baomin Xu
Herein, four covalent BODIPY heterodimers that differ by dihedral angles were shown to be highly efficient excited triplet state (T1) photosensitizers (PSs) for singlet oxygen formation with a quantum yield (ΦΔ) of up to 0.94 as compared to their respective monomers, which had only negligible ΦΔ of ca. 0.060. More interestingly, these PSs generate T1via charge recombination mechanism rather than traditional inter-system crossing. The photosensitizing ability of dimers is easily tuned by either the dihedral angle (between the two linked BODIPYs) or solvent polarity...
September 20, 2017: Physical Chemistry Chemical Physics: PCCP
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