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https://www.readbyqxmd.com/read/28725989/imatinib-in-myeloid-lymphoid-neoplasms-with-eosinophilia-and-rearrangement-of-pdgfrb-in-chronic-or-blast-phase
#1
Mohamad Jawhar, Nicole Naumann, Juliana Schwaab, Herrad Baurmann, Jochen Casper, Tu-Anh Dang, Lutz Dietze, Konstanze Döhner, Annette Hänel, Bernd Lathan, Hartmut Link, Sina Lotfi, Ole Maywald, Stephan Mielke, Lothar Müller, Uwe Platzbecker, Otto Prümmer, Henrike Thomssen, Karin Töpelt, Jens Panse, Tom Vieler, Wolf-Karsten Hofmann, Torsten Haferlach, Claudia Haferlach, Alice Fabarius, Andreas Hochhaus, Nicholas C P Cross, Andreas Reiter, Georgia Metzgeroth
We evaluated clinical characteristics and outcome on imatinib of 22 patients with myeloid/lymphoid neoplasms with eosinophilia and rearrangement of PDGFRB. Median age was 49 years (range 20-80), 91% were male. Fifteen different PDGFRB fusion genes were identified. Eosinophilia was absent in 4/19 (21%) cases and only 11/19 (58%) cases had eosinophils ≥1.5×10(9)/L. On imatinib, 17/17 (100%) patients in chronic phase achieved complete hematologic remission after median 2 months (range 0-13)​. Complete cytogenetic remission and/or complete molecular remission by RT-PCR were achieved in 12/13 (92%) and 12/14 patients (86%) after median 10 (range 3-34) and 19 months (range 7-110), respectively...
July 19, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28725589/multi-parametric-magnetic-resonance-imaging-as-a-management-decision-tool
#2
REVIEW
David C Johnson, Robert E Reiter
The ability to image the prostate accurately and better characterize cancerous lesions makes multiparametric magnetic resonance imaging (mpMRI) an invaluable tool to improve management of localized prostate cancer (PCa). Improved risk stratification is warranted given the evidence of significant overtreatment of indolent PCa. mpMRI can more accurately rule out clinically significant PCa in men deciding between surveillance and definitive treatment to reduce overtreatment. mpMRI improves detection of clinically significant PCa, which helps minimize sampling error, a major limitation of the traditional diagnostic paradigm...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28723608/breastfeeding-and-the-gut-brain-axis-is-there-a-role-for-melatonin
#3
REVIEW
George Anderson, Cathy Vaillancourt, Michael Maes, Russel J Reiter
The benefits of breastfeeding over formula feed are widely appreciated. However, for many mothers breastfeeding is not possible, highlighting the need for a significant improvement in the contents of formula feed. In this article, the overlooked role of melatonin and the melatonergic pathways in breast milk and in the regulation of wider breast milk components are reviewed. There is a growing appreciation that the benefits of breastfeeding are mediated by its effects in the infant gut, with consequences for the development of the gut-brain axis and the immune system...
July 19, 2017: Biomolecular Concepts
https://www.readbyqxmd.com/read/28721826/clinical-uses-of-melatonin-in-neurological-diseases-and-mental-and-behavioural-disorders
#4
Emilio J Sánchez-Barceló, Noemi R Revilla, María D Mediavilla, Carmen Martínez-Cué, Russel J Reiter
Melatonin is a molecule with numerous properties applicable to the treatment of neurological diseases. Among these properties are the following: potent scavenger of oxygen and nitrogen reactive species, anti-inflammatory features, immuno-enhancing nature, and modulation of circadian rhythmicity. Furthermore, low concentrations of melatonin are usually found in patients with neurological diseases and mental disorders. The positive results obtained in experimental models of diverse pathologies, including diseases of the nervous system (e...
July 18, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28716051/mir-380-5p-mediated-repression-of-tep1-and-tspyl5-interferes-with-telomerase-activity-and-favours-the-emergence-of-an-alt-like-phenotype-in-diffuse-malignant-peritoneal-mesothelioma-cells
#5
Graziella Cimino-Reale, Paolo Gandellini, Francesca Santambrogio, Marta Recagni, Nadia Zaffaroni, Marco Folini
BACKGROUND: Understanding the molecular/cellular underpinnings of diffuse malignant peritoneal mesothelioma (DMPM), a fatal malignancy with limited therapeutic options, is of utmost importance for the fruitful management of the disease. In this context, we previously found that telomerase activity (TA), which accounts for the limitless proliferative potential of cancer cells, is prognostic for disease relapse and cancer-related death in DMPM patients. Consequently, the identification of factors involved in telomerase activation/regulation may pave the way towards the development of novel therapeutic interventions for the disease...
July 17, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28715373/new-methods-to-study-gustatory-coding
#6
Alejandra Boronat-García, Sam Reiter, Kui Sun, Mark Stopfer
The sense of taste allows animals to detect chemicals in the environment, giving rise to behaviors critical for survival. When Gustatory Receptor Neurons (GRNs) detect tastant molecules, they encode information about the identity and concentration of the tastant as patterns of electrical activity that then propagate to follower neurons in the brain. These patterns constitute internal representations of the tastant, which then allow the animal to select actions and form memories. The use of relatively simple animal models has been a powerful tool to study basic principles in sensory coding...
June 29, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28714401/chemical-consequences-of-radioactive-decay-and-their-biological-implications
#7
Onofre T DeJesus
The chemical effects of radioactive decay arise from (1) transmutation, (2) formation of charged daughter nuclei, (3) recoil of the daughter nuclei, (4) electron "shakeoff" phenomenon and (5) vacancy cascade in decays via electron capture and internal conversion. This review aims to reiterate what has been known for a long time regarding the chemical consequences of radioactive decay and gives a historical perspective to the observations that led to their elucidation. The energetics of the recoil process in each decay mode is discussed in relation to the chemical bond between the decaying nucleus and the parent molecule...
July 14, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28713845/impact-of-phonons-on-dephasing-of-individual-excitons-in-deterministic-quantum-dot-microlenses
#8
Tomasz Jakubczyk, Valentin Delmonte, Sarah Fischbach, Daniel Wigger, Doris E Reiter, Quentin Mermillod, Peter Schnauber, Arsenty Kaganskiy, Jan-Hindrik Schulze, André Strittmatter, Sven Rodt, Wolfgang Langbein, Tilmann Kuhn, Stephan Reitzenstein, Jacek Kasprzak
Optimized light-matter coupling in semiconductor nanostructures is a key to understand their optical properties and can be enabled by advanced fabrication techniques. Using in situ electron beam lithography combined with a low-temperature cathodoluminescence imaging, we deterministically fabricate microlenses above selected InAs quantum dots (QDs), achieving their efficient coupling to the external light field. This enables performing four-wave mixing microspectroscopy of single QD excitons, revealing the exciton population and coherence dynamics...
December 21, 2016: ACS Photonics
https://www.readbyqxmd.com/read/28711932/the-pan-bcl-2-blocker-obatoclax-gx15-070-and-the-pi3-kinase-mtor-inhibitor-bez235-produce-cooperative-growth-inhibitory-effects-in-all-cells
#9
Gabriele Stefanzl, Daniela Berger, Sabine Cerny-Reiterer, Katharina Blatt, Gregor Eisenwort, Wolfgang R Sperr, Gregor Hoermann, Karin Lind, Alexander W Hauswirth, Peter Bettelheim, Heinz Sill, Junia V Melo, Ulrich Jäger, Peter Valent
Acute lymphoblastic leukemia (ALL) is characterized by leukemic expansion of lymphoid blasts in hematopoietic tissues. Despite improved therapy only a subset of patients can be cured. Therefore, current research is focusing on new drug-targets. Members of the BCL-2 family and components of the PI3-kinase/mTOR pathway are critically involved in the regulation of growth and survival of ALL cells. We examined the effects of the pan-BCL-2 blocker obatoclax and the PI3-kinase/mTOR-inhibitor BEZ235 on growth and survival of ALL cells...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28710303/intrapartum-spontaneous-pneumomediastinum-and-surgical-emphysema-hamman-s-syndrome-in-a-30-year-old-woman-with-asthma
#10
Divya Bharathi Nagarajan, Malinga Dilhan Ratwatte, John Mathews, Mateen Siddiqui
The authors report a case of a 30-year-old nulliparous woman with a prior medical history of asthma who developed intrapartum pneumomediastinum with surgical emphysema during the second stage of labour. She was managed conservatively with supportive care and there was complete resolution of symptoms within 4 days. Clinical and radiological findings were consistent with Hamman's syndrome (spontaneous pneumomediastinum). This case reiterates the possibility of childhood asthma or a family history of asthma as being an associated risk factor for Hamman's syndrome and reminds us of the need to distinguish such clinical findings from more important and potentially life-threatening conditions such as oesophageal rupture, pulmonary embolism and aortic dissection that can present with similar findings...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28710256/anatomic-and-molecular-imaging-in-prostate-cancer
#11
Eric T Miller, Amirali Salmasi, Robert E Reiter
Prostate cancer is characterized by a complex set of heterogeneous disease states. This review aims to describe how imaging has been studied within each specific state. As physicians transition into an era of precision medicine, multiparametric magnetic resonance imaging (mpMRI) is proving to be a powerful tool leading the way for a paradigm shift in the diagnosis and management of localized prostate cancer. With further research and development, molecular imaging modalities will likely change the way we approach recurrent and metastatic disease...
July 14, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28709001/ciliary-hedgehog-signaling-restricts-injury-induced-adipogenesis
#12
Daniel Kopinke, Elle C Roberson, Jeremy F Reiter
Injured skeletal muscle regenerates, but with age or in muscular dystrophies, muscle is replaced by fat. Upon injury, muscle-resident fibro/adipogenic progenitors (FAPs) proliferated and gave rise to adipocytes. These FAPs dynamically produced primary cilia, structures that transduce intercellular cues such as Hedgehog (Hh) signals. Genetically removing cilia from FAPs inhibited intramuscular adipogenesis, both after injury and in a mouse model of Duchenne muscular dystrophy. Blocking FAP ciliation also enhanced myofiber regeneration after injury and reduced myofiber size decline in the muscular dystrophy model...
July 13, 2017: Cell
https://www.readbyqxmd.com/read/28708271/melatonin-protects-against-the-pathological-cardiac-hypertrophy-induced-by-transverse-aortic-constriction-through-activating-pgc-1%C3%AE-in-vivo-and-in-vitro-studies
#13
Mengen Zhai, Zhenhua Liu, Bin Zhang, Lin Jing, Buying Li, Kaifeng Li, Xiuju Chen, Meng Zhang, Bo Yu, Kai Ren, Yang Yang, Wei Yi, Jian Yang, Jincheng Liu, Dinghua Yi, Hongliang Liang, Zhenxiao Jin, Russel J Reiter, Weixun Duan, Shiqiang Yu
Melatonin, a circadian molecule secreted by the pineal gland, confers a protective role against cardiac hypertrophy induced by hyperthyroidism, chronic hypoxia and isoproterenol. However, its role against pressure overload-induced cardiac hypertrophy and the underlying mechanisms remain elusive. In this study, we investigated the pharmacological effects of melatonin on pathological cardiac hypertrophy induced by transverse aortic constriction (TAC). Male C57BL/6 mice underwent TAC or sham surgery at day 0 and were then treated with melatonin (20 mg/kg/day, via drinking water) for 4 or 8 weeks...
July 14, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28708219/one-year-efficacy-and-safety-of-0-1-cyclosporine-a-cationic-emulsion-in-the-treatment-of-severe-dry-eye-disease
#14
Christophe Baudouin, Maite Sainz de la Maza, Mourad Amrane, Jean-Sébastien Garrigue, Dahlia Ismail, Francisco C Figueiredo, Andrea Leonardi
PURPOSE: The SANSIKA study evaluated the efficacy/safety of 0.1% (1 mg/mL) cyclosporine A cationic emulsion (CsA CE) for treating dry eye disease (DED) with severe keratitis. The double-masked phase demonstrated that CsA CE was effective in reducing corneal damage and ocular surface inflammation, and was well-tolerated over 6 months. Here we report efficacy and safety findings of SANSIKA's open-label extension (OLE). METHODS: In this multicenter, double-masked, phase III study, patients with severe DED (corneal fluorescein staining [CFS] grade 4, modified Oxford scale) were randomized to once-daily CsA CE (Ikervis®) or its vehicle for 6 months, followed by 6-month open-label, once-daily CsA CE (CsA CE/CsA CE and vehicle/CsA CE groups)...
July 1, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28705063/postoperative-ct-of-the-midfacial-skeleton-after-trauma-review-of-normal-appearances-and-common-complications
#15
Michael J Reiter, Ryan B Schwope, Jared M Theler
OBJECTIVE: The objective of this article is to describe the CT appearance of the midfacial skeleton after surgical repair of posttraumatic Le Fort, nasoorbitoethmoidal (NOE), and frontal sinus fractures. Several of the more commonly encountered complications will also be described. CONCLUSION: Surgery after midfacial trauma is aimed at restoring both form and function. Knowledge of the principal tenets of Le Fort, NOE, and frontal sinus fracture repair is vital for radiologists to accurately assess the adequacy of treatment on postoperative CT and provide meaningful reports for the surgeon...
July 13, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28704851/melatonin-and-neonatal-sepsis-a-promising-antioxidant-adjuvant-agent
#16
Gabriella D'Angelo, Lucia Marseglia, Russel J Reiter, Giuseppe Buonocore, Eloisa Gitto
No abstract text is available yet for this article.
July 13, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28701189/stromal-derived-factor-1-mediates-the-lung-regenerative-effects-of-mesenchymal-stem-cells-in-a-rodent-model-of-bronchopulmonary-dysplasia
#17
Joel Reiter, Shelley Drummond, Ibrahim Sammour, Jian Huang, Victoria Florea, Polliana Dornas, Joshua M Hare, Claudia O Rodrigues, Karen C Young
BACKGROUND: Mesenchymal stem cells (MSCs) attenuate lung injury in experimental models of bronchopulmonary dysplasia (BPD). Stromal derived factor-1 (SDF-1), a chemokine secreted by MSCs, modulates angiogenesis and stem cell recruitment. Here we tested the hypothesis that SDF-1 mediates MSC protective effects in experimental BPD by modulating angiogenesis. METHODS: SDF-1 was knocked down in MSCs using lentiviral vectors carrying anti-SDF-1 short hairpin RNA (MSC-SDF KD)...
July 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28701049/insane-acquittees-and-insane-convicts-the-rationalization-of-policy-in-nineteenth-century-connecticut
#18
Lawrence B Goodheart
A current situation in Connecticut of whether a violent insane acquittee should be held in a state prison or psychiatric facility raises difficult issues in jurisprudence and medical ethics. Overlooked is that the present case of Francis Anderson reiterates much of the debate over rationalization of policy during the formative nineteenth century. Contrary to theories of social control and state absolutism, governance in Connecticut was largely episodic, indecisive and dilatory over much of the century. The extraordinary urban and industrial transformation at the end of the Gilded Age finally forced a coherent response in keeping with longstanding legal and medical perspectives...
July 1, 2017: History of Psychiatry
https://www.readbyqxmd.com/read/28698599/genes-and-molecular-pathways-underpinning-ciliopathies
#19
REVIEW
Jeremy F Reiter, Michel R Leroux
Motile and non-motile (primary) cilia are nearly ubiquitous cellular organelles. The dysfunction of cilia causes diseases known as ciliopathies. The number of reported ciliopathies (currently 35) is increasing, as is the number of established (187) and candidate (241) ciliopathy-associated genes. The characterization of ciliopathy-associated proteins and phenotypes has improved our knowledge of ciliary functions. In particular, investigating ciliopathies has helped us to understand the molecular mechanisms by which the cilium-associated basal body functions in early ciliogenesis, as well as how the transition zone functions in ciliary gating, and how intraflagellar transport enables cargo trafficking and signalling...
July 12, 2017: Nature Reviews. Molecular Cell Biology
https://www.readbyqxmd.com/read/28695961/apolipoprotein-c-i-mediates-wnt-ctnnb1-signaling-during-neural-border-formation-and-is-required-for-neural-crest-development
#20
Chika Yokota, Carolina Åstrand, Shuji Takahashi, Daniel W Hagey, Jan M Stenman
In vertebrates, the neural crest and placodes originate in the neural border, which is located between the neural plate and epidermal ectoderm. The neural crest and placodes give rise to a vast array of cell types. Formation of neural crest is a multi-step process, in which Wnt signals are used reiteratively, but it is currently not clear if a Wnt signal is required for neural border formation. Here, we have identified apolipoprotein C-I (apoc1) in a screen for genes regulated by Wnt/Ctnnb1 signaling in late blastula stage Xenopus tropicalis embryos...
2017: International Journal of Developmental Biology
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