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https://www.readbyqxmd.com/read/29342363/differential-effects-of-inhibitory-g-protein-isoforms-on-g-protein-gated-inwardly-rectifying-k-currents-in-adult-murine-atria
#1
Muriel Nobles, David Montaigne, Sonia Sebastian, Lutz Birnbaumer, Andrew Tinker
G-protein gated inwardly rectifying K+ (GIRK) channels are the major inwardly rectifying K+ currents in cardiac atrial myocytes and an important determinant of atrial electrophysiology. Inhibitory G-protein alpha subunits can both mediate activation via acetylcholine but can also supress basal currents in the absence of agonist. We studied this phenomenon using whole cell patch clamping in murine atria from mice with global genetic deletion of Gαi2, combined deletion of Gαi1/Gαi3 and littermate controls...
January 17, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29342297/an-exact-goodness-of-fit-test-based-on-the-occupancy-problems-to-study-zero-inflation-and-zero-deflation-in-biological-dosimetry-data
#2
Amanda Fernández-Fontelo, Pedro Puig, Elizabeth A Ainsbury, Manuel Higueras
The goal in biological dosimetry is to estimate the dose of radiation that a suspected irradiated individual has received. For that, the analysis of aberrations (most commonly dicentric chromosome aberrations) in scored cells is performed and dose response calibration curves are built. In whole body irradiation (WBI) with X- and gamma-rays, the number of aberrations in samples is properly described by the Poisson distribution, although in partial body irradiation (PBI) the excess of zeros provided by the non-irradiated cells leads, for instance, to the Zero-Inflated Poisson distribution...
January 12, 2018: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29342275/hot-spot-kif5a-mutations-cause-familial-als
#3
David Brenner, Rüstem Yilmaz, Kathrin Müller, Torsten Grehl, Susanne Petri, Thomas Meyer, Julian Grosskreutz, Patrick Weydt, Wolfgang Ruf, Christoph Neuwirth, Markus Weber, Susana Pinto, Kristl G Claeys, Berthold Schrank, Berit Jordan, Antje Knehr, Kornelia Günther, Annemarie Hübers, Daniel Zeller, Christian Kubisch, Sibylle Jablonka, Michael Sendtner, Thomas Klopstock, Mamede de Carvalho, Anne Sperfeld, Guntram Borck, Alexander E Volk, Johannes Dorst, Joachim Weis, Markus Otto, Joachim Schuster, Kelly Del Tredici, Heiko Braak, Karin M Danzer, Axel Freischmidt, Thomas Meitinger, Tim M Strom, Albert C Ludolph, Peter M Andersen, Jochen H Weishaupt
Heterozygous missense mutations in the N-terminal motor or coiled-coil domains of the kinesin family member 5A (KIF5A) gene cause monogenic spastic paraplegia (HSP10) and Charcot-Marie-Tooth disease type 2 (CMT2). Moreover, heterozygous de novo frame-shift mutations in the C-terminal domain of KIF5A are associated with neonatal intractable myoclonus, a neurodevelopmental syndrome. These findings, together with the observation that many of the disease genes associated with amyotrophic lateral sclerosis disrupt cytoskeletal function and intracellular transport, led us to hypothesize that mutations in KIF5A are also a cause of amyotrophic lateral sclerosis...
January 12, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29342233/quantumclone-clonal-assessment-of-functional-mutations-in-cancer-based-on-a-genotype-aware-method-for-clonal-reconstruction
#4
Paul Deveau, Leo Colmet Daage, Derek Oldridge, Virginie Bernard, Angela Bellini, Mathieu Chicard, Nathalie Clement, Eve Lapouble, Valerie Combaret, Anne Boland, Vincent Meyer, Jean-Francois Deleuze, Isabelle Janoueix-Lerosey, Emmanuel Barillot, Olivier Delattre, John Maris, Gudrun Schleiermacher, Valentina Boeva
Motivation: In cancer, clonal evolution is assessed based on information coming from single nucleotide variants and copy number alterations. Nonetheless, existing methods often fail to accurately combine information from both sources to truthfully reconstruct clonal populations in a given tumor sample or in a set of tumor samples coming from the same patient. Moreover, previously published methods detect clones from a single set of variants. As a result, compromises have to be done between stringent variant filtering (reducing dispersion in variant allele frequency estimates, VAFs) and using all biologically relevant variants...
January 12, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29341884/acute-stress-persistently-alters-locus-coeruleus-function-and-anxiety-like-behavior-in-adolescent-rats
#5
Olga Borodovitsyna, Matthew D Flamini, Daniel J Chandler
Stress is a physiological state characterized by altered neuroendocrine signaling, behavioral arousal, and anxiety. Chronic or traumatic stress may predispose individuals for multiple somatic and psychiatric illnesses. The locus coeruleus (LC) is a major node in the stress response that integrates input from multiple stress responsive neural circuits and releases norepinephrine throughout the central nervous system to promote vigilance and anxiety. Many mood disorders associated with prior stress are characterized by chronically altered noradrenergic signaling, yet the long-term impact of an acute stressor on LC function is not clear...
January 13, 2018: Neuroscience
https://www.readbyqxmd.com/read/29341430/tuberculosis-vaccines-opportunities-and-challenges
#6
REVIEW
Bingdong Zhu, Hazel M Dockrell, Tom H M Ottenhoff, Thomas G Evans, Ying Zhang
Tuberculosis (TB) is a serious disease around the world. Bacillus Calmette-Guérin (BCG) is the only TB vaccine licensed for use in human beings, and is effective in protecting infants and children against severe miliary and meningeal TB. However, BCG's protective efficacy is variable in adults. Novel TB vaccine candidates being developed include whole-cell vaccines (recombinant BCG (rBCG), attenuated Mycobacterium tuberculosis, killed M. tuberculosis or Mycobacterium vaccae), adjuvanted protein subunit vaccines, viral vector-delivered subunit vaccines, plasmid DNA vaccines, RNA-based vaccines etc...
January 17, 2018: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29341227/pet-radiometals-for-antibody-labeling
#7
Eduardo Aluicio-Sarduy, Paul A Ellison, Todd E Barnhart, Weibo Cai, Robert Jerry Nickles, Jonathan W Engle
Recent advances in molecular characterization of tumors have made possible the emergence of new types of cancer therapies where the traditional cytotoxic drugs and nonspecific chemotherapy can be complemented with targeted molecular therapies. One of the main revolutionary treatments is the use of monoclonal antibodies (mAbs) that selectively target the disseminated tumor cells while sparing normal tissues. mAbs and related therapeutics can be efficiently radiolabeled with a wide range of radionuclides to facilitate preclinical and clinical studies...
January 17, 2018: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29341194/generation-of-red-drum-sciaenops-ocellatus-hematology-reference-intervals-with-a-focus-on-identified-outliers
#8
Kendal E Harr, Kristina Deak, Steven A Murawski, Drury R Reavill, Ryan A Takeshita
BACKGROUND: The Deepwater Horizon (DWH) oil spill in 2010 released millions of barrels of crude oil into the northern Gulf of Mexico, exposing numerous species of animals to the toxic components of oil. A comprehensive assessment of morbidity and mortality caused by DWH oil exposure was undertaken by the DWH Natural Resource Damage Trustees to characterize ecosystem damages. OBJECTIVES: This study aimed to characterize normal hematologic RIs in red drum fish with blood cell descriptions, and to demonstrate the importance of identifying and removing outliers when generating RI...
January 17, 2018: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/29340699/long-term-expression-of-glomerular-genes-in-diabetic-nephropathy
#9
Dominik Chittka, Bernhard Banas, Laura Lennartz, Franz Josef Putz, Kathrin Eidenschink, Sebastian Beck, Thomas Stempfl, Christoph Moehle, Simone Reichelt-Wurm, Miriam C Banas
Background: Although diabetic nephropathy (DN) is the most common cause for end-stage renal disease in western societies, its pathogenesis still remains largely unclear. A different gene pattern of diabetic and healthy kidney cells is one of the probable explanations. Numerous signalling pathways have emerged as important pathophysiological mechanisms for diabetes-induced renal injury. Methods: Glomerular cells, as podocytes or mesangial cells, are predominantly involved in the development of diabetic renal lesions...
January 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29339753/efficient-isolation-on-vero-dogslamtag-cells-and-full-genome-characterization-of-dolphin-morbillivirus-dmv-by-next-generation-sequencing
#10
Simone Peletto, Claudio Caruso, Francesco Cerutti, Paola Modesto, Cristina Biolatti, Alessandra Pautasso, Carla Grattarola, Federica Giorda, Sandro Mazzariol, Walter Mignone, Loretta Masoero, Cristina Casalone, Pier Luigi Acutis
The Dolphin Morbillivirus (DMV) genome from the first Mediterranean epidemic (1990-'92) is the only cetacean Morbillivirus that has been completely sequenced. Here, we report the first application of next generation sequencing (NGS) to morbillivirus infection of aquatic mammals. A viral isolate, representative of the 2006-'08 Mediterranean epidemic (DMV_IZSPLV_2008), efficiently grew on Vero.DogSLAMtag cells and was submitted to whole genome characterization by NGS. The final genome length was 15,673 nucleotides, covering 99...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339746/zika-virus-in-salivary-glands-of-five-different-species-of-wild-caught-mosquitoes-from-mexico
#11
Darwin Elizondo-Quiroga, Aarón Medina-Sánchez, Jorge M Sánchez-González, Kristen Allison Eckert, Erendira Villalobos-Sánchez, Antonio Rigoberto Navarro-Zúñiga, Gustavo Sánchez-Tejeda, Fabián Correa-Morales, Cassandra González-Acosta, Carlos F Arias, Susana López, Rosa María Del Ángel, Victoria Pando-Robles, Armando E Elizondo-Quiroga
Zika virus (ZIKV) is a mosquito-borne pathogen, and Aedes aegypti has been identified as the main vector of the disease. Other mosquito species in the Aedes and Culex genera have been suggested to have the potential for being competent vectors based on experimental exposition of mosquitoes to an infectious blood meal containing ZIKV. Here, we report the isolation in cell culture of ZIKV obtained from different body parts of wild-caught female mosquitoes (Ae. aegypti, Ae. vexans, Cx. quinquefasciatus, Cx. coronator, and Cx...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339538/e6-protein-expressed-by-high-risk-hpv-activates-super-enhancers-of-the-egfr-and-c-met-oncogenes-by-destabilizing-the-histone-demethylase-kdm5c
#12
Xiaohua Chen, Jun Xian Loo, Xin Shi, Wenjun Xiong, Yong Guo, Haiqiang Ke, Mingkun Yang, Yanping Jiang, Siyu Xia, Min Zhao, Shan Zhong, ChunJiang He, Li Fu, Feng Li
The high-risk (HR) human papillomaviruses (HPV) are causative agents of anogenital tract dysplasia and cancers and a fraction of head and neck cancers. The HR HPV E6 oncoprotein possesses canonical oncogenic functions, such as p53 degradation and telomerase activation. It is also capable of stimulating expression of several oncogenes, but the molecular mechanism underlying these events are poorly understood. Here we provide evidence that HPV16 E6 physically interacts with histone H3K4 demethylase KDM5C, resulting in its degradation in an E3 ligase E6AP- and proteasome-dependent manner...
January 16, 2018: Cancer Research
https://www.readbyqxmd.com/read/29339488/ultrafast-imaging-of-cell-elasticity-with-optical-microelastography
#13
Pol Grasland-Mongrain, Ali Zorgani, Shoma Nakagawa, Simon Bernard, Lia Gomes Paim, Greg Fitzharris, Stefan Catheline, Guy Cloutier
Elasticity is a fundamental cellular property that is related to the anatomy, functionality, and pathological state of cells and tissues. However, current techniques based on cell deformation, atomic force microscopy, or Brillouin scattering are rather slow and do not always accurately represent cell elasticity. Here, we have developed an alternative technique by applying shear wave elastography to the micrometer scale. Elastic waves were mechanically induced in live mammalian oocytes using a vibrating micropipette...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339428/mucosal-infections-and-invasive-potential-of-nonencapsulated-streptococcus-pneumoniae-are-enhanced-by-oligopeptide-binding-proteins-alic-and-alid
#14
Jessica L Bradshaw, Haley R Pipkins, Lance E Keller, James K Pendarvis, Larry S McDaniel
Nonencapsulated Streptococcus pneumoniae (NESp) is an emerging human pathogen that colonizes the nasopharynx and is associated with noninvasive diseases such as otitis media (OM), conjunctivitis, and nonbacteremic pneumonia. Since capsule expression was previously thought to be necessary for establishment of invasive pneumococcal disease (IPD), serotype-specific polysaccharide capsules are targeted by currently licensed pneumococcal vaccines. Yet, NESp expressing oligopeptide binding proteins AliC and AliD have been isolated during IPD...
January 16, 2018: MBio
https://www.readbyqxmd.com/read/29339259/perturbations-of-the-gut-microbiome-genes-in-infants-with-atopic-dermatitis-according-to-feeding-type
#15
Min-Jung Lee, Mi-Jin Kang, So-Yeon Lee, Eun Lee, Kangjin Kim, Sungho Won, Dong In Suh, Kyung Won Kim, Youn Ho Sheen, Kangmo Ahn, Bong-Soo Kim, Soo-Jong Hong
BACKGROUND: Perturbations of the infant gut microbiota can shape the development of the immune system and link to the risk of allergic diseases. OBJECTIVE: To understand the role of the gut microbiome in atopic dermatitis, the metagenome of the infant gut microbiome was analyzed according to feeding types. METHODS: The composition of gut microbiota was analyzed in fecal samples from 129 infants (6-month-old) by pyrosequencing, including 66 healthy infants and 63 infants with atopic dermatitis...
January 12, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29339080/prostate-cancer-disseminated-tumor-cells-are-rarely-detected-in-the-bone-marrow-of-localized-patients-undergoing-radical-prostatectomy-across-multiple-rare-cell-detection-platforms
#16
Heather J Chalfin, Stephanie A Glavaris, Paymaneh D Malihi, Jamie M Sperger, Michael A Gorin, Changxue Lu, C Rory Goodwin, Yan Chen, Emily A Caruso, Ruth Dumpit, Peter Kuhn, Joshua M Lang, Peter S Nelson, Jun Luo, Kenneth J Pienta
PURPOSE: Prostate circulating tumor cells escape into the peripheral blood and enter the bone marrow as disseminated tumor cells, representing an early step before conventionally detectable metastasis. It is unclear how frequently this occurs in localized disease, and existing detection methods rely on epithelial markers with low specificity and sensitivity. Here we employed multiple methodologies of disseminated tumor cell detection in bone marrow harvested at radical prostatectomy. MATERIALS AND METHODS: Bone marrow was harvested from 208 clinically localized patients, 16 controls, and 5 metastatic patients, with peripheral blood from 37 metastatic patients...
January 12, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29339060/quantification-of-a-recombinant-antigen-in-an-immuno-stimulatory-whole-yeast-cell-based-therapeutic-vaccine
#17
Jenny Wang, Daniel Stenzel, Ally Liu, Dengfeng Liu, Darren Brown, Alexandre Ambrogelly
Therapeutic vaccines represent an emerging class of immune-modulatory treatments for cancer, infections, and chronic diseases. One such vaccine was designed as an immune stimulator of the T cell response against HBV antigens to eliminate HBV infected cells and offer a therapeutic avenue to treat patients suffering from chronic hepatitis B infection. Whole deactivated Saccharomyces cerevisiae cells expressing a recombinant fusion of HBV X, S and Core antigens elicit T cell responses in mice and activate human T cells linked with viral clearance...
January 12, 2018: Analytical Biochemistry
https://www.readbyqxmd.com/read/29338938/distinct-met-protein-localization-associated-with-met-exon-14-mutation-types-in-patients-with-non-small-cell-lung-cancer
#18
Tian Qiu, Weihua Li, Tongtong Zhang, Puyuan Xing, Wenting Huang, Bingning Wang, Lixia Chu, Lei Guo, Xiuyun Liu, Yan Li, Jianming Ying, Junling Li
BACKGROUND: The MET gene has been recognized as a potential important therapeutic target in non-small-cell lung cancer (NSCLC). We sought to investigate the MET exon 14 mutations in a cohort of Chinese patients with NSCLC. METHODS: We tested 461 NSCLCs for MET exon 14 mutations by sequencing whole exon 14 and its flanking introns. The protein expression was determined by immunohistochemical analysis. RESULTS: In this study, we identified MET exon 14 mutations in 9 (2...
December 21, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/29338789/diagnosis-treatment-and-response-assessment-in-solitary-plasmacytoma-updated-recommendations-from-a-european-expert-panel
#19
REVIEW
J Caers, B Paiva, E Zamagni, X Leleu, J Bladé, S Y Kristinsson, C Touzeau, N Abildgaard, E Terpos, R Heusschen, E Ocio, M Delforge, O Sezer, M Beksac, H Ludwig, G Merlini, P Moreau, S Zweegman, M Engelhardt, L Rosiñol
Solitary plasmacytoma is an infrequent form of plasma cell dyscrasia that presents as a single mass of monoclonal plasma cells, located either extramedullary or intraosseous. In some patients, a bone marrow aspiration can detect a low monoclonal plasma cell infiltration which indicates a high risk of early progression to an overt myeloma disease. Before treatment initiation, whole body positron emission tomography-computed tomography or magnetic resonance imaging should be performed to exclude the presence of additional malignant lesions...
January 16, 2018: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29338778/increased-whole-blood-ffa2-gpr43-receptor-expression-is-associated-with-increased-30-day-survival-in-patients-with-sepsis
#20
Zyad J Carr, Andry Van De Louw, Graham Fehr, Jialiu D Li, Allen Kunselman, Victor Ruiz-Velasco
OBJECTIVE: Sepsis is a condition associated with a dysregulated inflammatory response to infection with significant morbidity. Recent advances have elucidated the vital role that the short chain fatty acid glycoprotein receptor 43 (FFA2/GPR43) plays in inflammatory and immunomodulatory pathways. We hypothesized that elevated whole blood GPR43 RNA expression would be associated with increased 30-day survival in patients admitted with sepsis. Patients (n = 93) admitted to the intensive care unit with the diagnosis of sepsis underwent quantitative real time PCR within 48 h of intensive care unit admission...
January 16, 2018: BMC Research Notes
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