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https://www.readbyqxmd.com/read/29436080/fetoscopic-laser-photocoagulation-for-twin-twin-transfusion-syndrome
#1
Haruhiko Sago, Keisuke Ishii, Rika Sugibayashi, Katsusuke Ozawa, Masahiro Sumie, Seiji Wada
The aim of this study was to review fetoscopic laser photocoagulation (FLP), which ablates placental vascular anastomoses to treat twin-twin transfusion syndrome (TTTS). A review of studies reporting on the procedures, outcomes, complications and nonconventional applications of FLP for TTTS was conducted. FLP has been established as the primary treatment for monochorionic twin pregnancy associated with TTTS at 16-26 weeks. FLP is the only therapy that directly addresses the underlying pathophysiology. The recent technique modification of FLP, referred to as the 'Solomon technique', induces selective coagulation to connect the anastomoses ablation sites and has been introduced to reduce residual anastomoses...
February 13, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29435951/correction-of-huntington-s-disease-phenotype-by-genistein-induced-autophagy-in-the-cellular-model
#2
Karolina Pierzynowska, Lidia Gaffke, Aleksandra Hać, Jagoda Mantej, Natalia Niedziałek, Joanna Brokowska, Grzegorz Węgrzyn
Huntington's disease (HD) is a monogenic disorder, caused by mutations in the HTT gene which result in expansion of CAG triplets. The product of the mutated gene is misfolded huntingtin protein that forms aggregates leading to impairment of neuronal function, neurodegeneration, motor abnormalities and cognitive deficits. No effective cure is currently available for HD. Here we studied effects of genistein (trihydroxyisoflavone) on a HD cellular model consisting of HEK-293 cells transfected with a plasmid bearing mutated HTT gene...
February 12, 2018: Neuromolecular Medicine
https://www.readbyqxmd.com/read/29409124/current-developments-in-immunotherapy-in-the-treatment-of-multiple-myeloma
#3
REVIEW
Martin Köhler, Christine Greil, Michael Hudecek, Sagar Lonial, Noopur Raje, Ralph Wäsch, Monika Engelhardt
Multiple myeloma (MM) is the second most common hematologic malignancy and represents approximately 10% of all hematological neoplasms. Standard therapy consists of induction therapy followed by high-dose chemotherapy and autologous stem cell transplantation (ASCT) or, if ASCT cannot be performed, standard doublet, triplet, or quadruplet, novel agent-containing induction treatment until progression. Although MM is still regarded as mostly incurable by current standards, the development of several novel compounds, combination therapies, and immunotherapy approaches has raised great hopes about transforming MM into an indolent, chronic disease and possibly achieving a cure for individual patients...
February 6, 2018: Cancer
https://www.readbyqxmd.com/read/29357875/optimization-of-dose-distributions-of-target-volumes-and-organs-at-risk-during-stereotactic-body-radiation-therapy-for-pancreatic-cancer-with-dose-limiting-auto-shells
#4
Yangsen Cao, Xiaofei Zhu, Xiaoping Ju, Yongming Liu, Chunshan Yu, Yongjian Sun, Zhitao Dai, Xueling Guo, Huojun Zhang
BACKGROUND: To identify optimization of dose distributions of target volumes and decrease of radiation doses to normal tissues during stereotactic body radiation therapy (SBRT) for pancreatic cancer with dose-limiting auto-shells. METHODS: With the same prescription dose, dose constraints of normal organs and calculation algorithm, treatment plans of each eligible patient were re-generated with 3 shells, 5 shells and 7 shells, respectively. The prescription isodose line and beam number of each patient in 3-shell, 5-shell and 7-shell plan remained the same...
January 22, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29353237/beyond-motor-neurons-expanding-the-clinical-spectrum-in-kennedy-s-disease
#5
REVIEW
Raquel Manzano, Gianni Sorarú, Christopher Grunseich, Pietro Fratta, Emanuela Zuccaro, Maria Pennuto, Carlo Rinaldi
Kennedy's disease, or spinal and bulbar muscular atrophy (SBMA), is an X-linked neuromuscular condition clinically characterised by weakness, atrophy and fasciculations of the limb and bulbar muscles, as a result of lower motor neuron degeneration. The disease is caused by an abnormally expanded triplet repeat expansions in the ubiquitously expressed androgen receptor gene, through mechanisms which are not entirely elucidated. Over the years studies from both humans and animal models have highlighted the involvement of cell populations other than motor neurons in SBMA, widening the disease phenotype...
January 20, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29330561/salvage-therapy-post-pomalidomide-based-regimen-in-relapsed-refractory-myeloma
#6
Guillemette Fouquet, Lionel Karlin, Margaret Macro, Denis Caillot, Murielle Roussel, Bertrand Arnulf, Brigitte Pegourie, Marie Odile Petillon, Claire Mathiot, Cyrille Hulin, Brigitte Kolb, Anne-Marie Stoppa, Sabine Brechiniac, Philippe Rodon, Mamoun Dib, Mourad Tiab, Valentine Richez, Carla Araujo, Marc Wetterwald, Laurent Garderet, Bruno Royer, Aurore Perrot, Lotfi Benboubker, Olivier Decaux, Martine Escoffre-Barbe, Jean Paul Fermand, Philippe Moreau, Hervé Avet-Loiseau, Michel Attal, Thierry Facon, Xavier Leleu
The combination of pomalidomide and low-dose dexamethasone (Pom-Dex) has proved effective and safe in patients with end-stage relapsed/refractory multiple myeloma (RRMM), otherwise characterized by a very poor outcome. MM remains an incurable disease with unavoidable relapses, and the outcome after pomalidomide is still dismal. However, some patients demonstrate prolonged survival even beyond pomalidomide therapy.We sought to analyze the treatment of RRMM patients following Pom-Dex therapy and the response and survival after this next treatment line...
January 12, 2018: Annals of Hematology
https://www.readbyqxmd.com/read/29325609/the-cag-polyglutamine-repeat-diseases-a-clinical-molecular-genetic-and-pathophysiologic-nosology
#7
Colleen A Stoyas, Albert R La Spada
Throughout the genome, unstable tandem nucleotide repeats can expand to cause a variety of neurologic disorders. Expansion of a CAG triplet repeat within a coding exon gives rise to an elongated polyglutamine (polyQ) tract in the resultant protein product, and accounts for a unique category of neurodegenerative disorders, known as the CAG-polyglutamine repeat diseases. The nine members of the CAG-polyglutamine disease family include spinal and bulbar muscular atrophy (SBMA), Huntington disease, dentatorubral pallidoluysian atrophy, and six spinocerebellar ataxias (SCA 1, 2, 3, 6, 7, and 17)...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29319078/excitation-energies-singlet-triplet-energy-gaps-spin-orbit-matrix-elements-and-heavy-atom-effects-in-boimpys-as-possible-photosensitizers-for-photodynamic-therapy-a-computational-investigation
#8
Bruna Clara De Simone, Gloria Mazzone, Nino Russo, Emilia Sicilia, Marirosa Toscano
Bis(borondifluoride)-8-imidazodipyrromethene (BOIMPY) based molecules show interesting photophysical properties. We have undertaken a computational study at DFT and TDDFT levels of theory with the aim of verifying if the non-fluorescent BOIMPYs meet those properties necessary to be proposed as potential photosensitizers for photodynamic therapy (PDT). In particular, we have computed the absorption wavelengths, the singlet-triplet energy gaps and the spin-orbit matrix elements. The effect of halogen atom substitution (Br, I), in different amounts and positions in the BOIMPY skeleton, on the photophysical properties, has been elucidated...
January 10, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29314348/theoretical-insights-into-the-switch-off-on-1o2-photosensitization-in-chemicontrolled-photodynamic-therapy
#9
Jenny Pirillo, Gloria Mazzone, Nino Russo
Density functional theory (DFT) and time dependent DFT (TD-DFT) calculations were carried out for recently reported BODIPY-based photosensitizers (PSs) that can be activated by reactive oxygen species (ROS) to generate 1O2 specifically in target tissues. In order to assess the applicability of the compounds as activatable PSs (a-PSs) in photodynamic therapy (PDT), we investigated absorption wavelengths, singlet-triplet energy gaps and spin-orbit matrix elements for the radiationless transition, Sn→Tm. A TD-DFT qualitative analysis indicated that only a Br-substituted BODIPY derivative with chromanol ring of -tocopherol linked by methylene can work as an a-PS...
January 4, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29274109/improved-photophysical-and-photochemical-properties-of-thiopheneethoxy-substituted-metallophthalocyanines-on-immobilization-onto-gold-speckled-silica-nanoparticles
#10
Edith Dube, David O Oluwole, Tebello Nyokong
This work reports on the synthesis of tetrakis-[(thiophineethoxy) phthalocyaninato] indium(II) chloride (3). The photophysical behaviour of complex 3 was compared to that of the Zn derivative (tetrakis-[(thiophineethoxy) phthalocyaninato] zinc(II) (complex 2)). The compounds were interacted with gold-speckled silica (GSS) nanoparticles via Au-S self assembly to afford the conjugates (2-GSS and 3-GSS). The photophysicochemical behaviour of the compounds and their conjugates were assessed. The conjugates afforded a decrease in fluorescence quantum yields and lifetimes with improved triplet and singlet oxygen quantum yields in comparison to complexes 2 and 3 alone...
December 22, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29249822/phase-i-ii-trial-of-the-oral-regimen-ixazomib-pomalidomide-and-dexamethasone-in-relapsed-refractory-multiple-myeloma
#11
A Krishnan, P Kapoor, J M Palmer, N-C Tsai, S Kumar, S Lonial, M Htut, C Karanes, N Nathwani, M Rosenzweig, F Sahebi, G Somlo, L Duarte, J F Sanchez, D Auclair, S J Forman, J G Berdeja
In this phase I/II trial, a triplet regimen of ixazomib (Ixa: 3 or 4 mg), pomalidomide (Pom: 4 mg), and dexamethasone (Dex: 40 mg) was administered to 32 lenalidomide-refractory multiple myeloma (MM) patients; 31 were evaluable for response and toxicity. At dose level 1 (DL1, 3 mg Ixa), 1/3 patients experienced grade 3 fatigue, grade 3 lung infection, grade 4 neutropenia, and grade 4 thrombocytopenia; all were considered dose limiting. Per 3+3 phase I design, an additional 3 patients were enrolled to DL1, with no further dose limiting toxicity (DLT)...
December 18, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29243224/palbociclib-synergizes-with-braf-and-mek-inhibitors-in-treatment-na%C3%A3-ve-melanoma-but-not-after-the-development-of-braf-inhibitor-resistance
#12
Claire A Martin, Carleen Cullinane, Laura Kirby, Shatha Abuhammad, Emily J Lelliott, Kelly Waldeck, Richard J Young, Natalie Brajanovski, Donald P Cameron, Rachael Walker, Elaine Sanij, Gretchen Poortinga, Ross D Hannan, Richard B Pearson, Rodney J Hicks, Grant A McArthur, Karen E Sheppard
Increased CDK4 activity occurs in the majority of melanomas and CDK4/6 inhibitors in combination with BRAF and MEK inhibitors are currently in clinical trials for the treatment of melanoma. We hypothesize that the timing of the addition of CDK4/6 inhibitors to the current BRAF and MEK inhibitor regime will impact on the efficacy of this triplet drug combination. The efficacy of BRAF, MEK and CDK4/6 inhibitors as single agents and in combination were assessed in human BRAF mutant cell lines that were treatment naïve, BRAF inhibitor tolerant or had acquired resistance to BRAF inhibitors...
December 15, 2017: International Journal of Cancer. Journal International du Cancer
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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