2,939 results match your criteria expression atlantic


The transcriptomic responses of Atlantic salmon (Salmo salar) to high temperature stress alone, and in combination with moderate hypoxia.

BMC Genomics 2021 Apr 12;22(1):261. Epub 2021 Apr 12.

Department of Ocean Sciences, Memorial University, St. John's, NL, A1C 5S7, Canada.

Background: Increases in ocean temperatures and in the frequency and severity of hypoxic events are expected with climate change, and may become a challenge for cultured Atlantic salmon and negatively affect their growth, immunology and welfare. Thus, we examined how an incremental temperature increase alone (Warm & Normoxic-WN: 12 → 20 °C; 1 °C week), and in combination with moderate hypoxia (Warm & Hypoxic-WH: ~ 70% air saturation), impacted the salmon's hepatic transcriptome expr\ession compared to control fish (CT: 12 °C, normoxic) using 44 K microarrays and qPCR.

Results: Overall, we identified 2894 differentially expressed probes (DEPs, FDR < 5%), that included 1111 shared DEPs, while 789 and 994 DEPs were specific to WN and WH fish, respectively. Read More

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The Analysis of Live-Attenuated Vaccine Reveals the Short-Term Upregulation of Innate and Adaptive Immune Genes in Atlantic Salmon (): An In Situ Open-Sea Cages Study.

Microorganisms 2021 Mar 29;9(4). Epub 2021 Mar 29.

Consorcio Tecnológico de Sanidad Acuícola, Ictio Biotechnologies S.A., 7500652 Santiago, Chile.

, the etiological agent of the Salmon Rickettsial Septicemia (SRS), is one the most serious health problems for the Chilean salmon industry. Typical antimicrobial strategies used against include antibiotics and vaccines, but these applications have largely failed. A few years ago, the first attenuated-live vaccine against SRS (ALPHA JECT LiVac SRS vaccine) was released to the market. Read More

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Remyelination is enhanced by Astragalus polysaccharides through inducing the differentiation of oligodendrocytes from neural stem cells in cuprizone model of demyelination.

Brain Res 2021 Mar 30;1763:147459. Epub 2021 Mar 30.

Institute of Clinical Immunology, Yue-Yang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, PR China. Electronic address:

Demyelination is the hallmark of multiple sclerosis (MS). Promoting remyelination is an important strategy to treat MS. Our previous study showed that Astragalus polysaccharides (APS), the main bioactive component of Astragalus membranaceus, could prevent demyelination in experimental autoimmune encephalomyelitis mice. Read More

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Nonhypoalbuminemic Inflammatory Bowel Disease in Dogs as Disease Model.

Inflamm Bowel Dis 2021 Mar 30. Epub 2021 Mar 30.

IECM, Oniris  (Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering), INRAE, Nantes, France.

Background: The incidence of inflammatory bowel disease (IBD) is increasing worldwide, emphasizing the need of relevant models, as dogs spontaneously affected by IBD may be, for better knowledge of the disease's physiopathology.

Methods: We studied 22 client-owned dogs suffering from IBD without protein loss and 14 control dogs. Biopsies were obtained from the duodenum, ileum, and colon. Read More

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Diapause vs. reproductive programs: transcriptional phenotypes in a keystone copepod.

Commun Biol 2021 Mar 29;4(1):426. Epub 2021 Mar 29.

Pacific Biosciences Research Center, University of Hawai'i at Mānoa, Honolulu, HI, USA.

Many arthropods undergo a seasonal dormancy termed "diapause" to optimize timing of reproduction in highly seasonal environments. In the North Atlantic, the copepod Calanus finmarchicus completes one to three generations annually with some individuals maturing into adults, while others interrupt their development to enter diapause. It is unknown which, why and when individuals enter the diapause program. Read More

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Diet and Life Stage-Associated Lipidome Remodeling in Atlantic Salmon.

J Agric Food Chem 2021 Mar 23;69(12):3787-3796. Epub 2021 Mar 23.

Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, 1430 Aas, Norway.

Salmon is an important source of long-chain highly unsaturated fatty acids (LC-HUFAs) such as 22:6-3 [docosahexaenoic acid (DHA)]. In the present study, we conducted two identical experiments on salmon in freshwater (FW) and seawater (SW) stages, with a diet switch from fish oil (high in LC-HUFA) to vegetable oil (low in LC-HUFA) and vice versa. Our aim was to investigate the diet and life stage-specific features of lipid uptake (gut), processing (liver), and deposition (muscle). Read More

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Chimeric antigen receptor engineered NK cellular immunotherapy overcomes the selection of T-cell escape variant cancer cells.

J Immunother Cancer 2021 Mar;9(3)

NIDCD, National Institutes of Health, Bethesda, Maryland, USA

Background: As heterogeneous tumors develop in the face of intact immunity, tumor cells harboring genomic or expression defects that favor evasion from T-cell detection or elimination are selected. For patients with such tumors, T cell-based immunotherapy alone infrequently results in durable tumor control.

Methods: Here, we developed experimental models to study mechanisms of T-cell escape and demonstrated that resistance to T-cell killing can be overcome by the addition of natural killer (NK) cells engineered to express a chimeric antigen receptor (CAR) targeting programmed death ligand-1 (PD-L1). Read More

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Chemogenetics drives paradigm change in the investigation of behavioral circuits and neural mechanisms underlying drug action.

Behav Brain Res 2021 May 16;406:113234. Epub 2021 Mar 16.

Department of Psychology, Tokiwa University, Mito, Ibaraki, Japan; Department of Systems Physiology, University of Ryukyus, Faculty of Medicine, Nakagami District, Okinawa, Japan. Electronic address:

Recent developments in chemogenetic approaches to the investigation of brain function have ushered in a paradigm change in the strategy for drug and behavior research and clinical drug-based medications. As the nature of the drug action is based on humoral regulation, it is a challenge to identify the neuronal mechanisms responsible for the expression of certain targeted behavior induced by drug application. The development of chemogenetic approaches has allowed researchers to control neural activities in targeted neurons through a toolbox, including engineered G protein-coupled receptors or ligand-gated ion channels together with exogenously inert synthetic ligands. Read More

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Dietary Inclusion of Black Soldier Fly () Larvae Meal and Paste Improved Gut Health but Had Minor Effects on Skin Mucus Proteome and Immune Response in Atlantic Salmon ().

Front Immunol 2021 25;12:599530. Epub 2021 Feb 25.

Department of Animal and Aquacultural Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway.

The present study investigated effects of dietary inclusion of black soldier fly larvae (BSFL) () meal and paste on gut health, plasma biochemical parameters, immune response and skin mucus proteome in pre-smolt Atlantic salmon (). The seven-week experiment consisted of seven experimental diets: a control diet based on fishmeal and plant protein (Control-1); three BSFL meal diets, substituting 6.25% (6. Read More

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February 2021

Anti-Viral microRNAs Profiling in Infectious Salmon Anemia Virus (ISAV)-Infected Atlantic Salmon Kidney (ASK) Cells.

Authors:
Sung-Suk Suh

J Nanosci Nanotechnol 2021 Jul;21(7):3673-3678

Department of Biosciences, Mokpo National University, Muan 58554, Republic of Korea.

Infectious salmon anemia virus (ISAV) is an orthomyxovirus causing fetal disease of farmed Atlantic salmon, leading to considerable financial losses farmers around the world. In the present study, we sequenced and identified microRNAs (miRNAs) from Atlantic salmon kidney (ASK) cells infected with ISAV. Based on initial experimental data derived from RNA-Seq analysis, a group of differentially expressed (DE) miRNAs from the infected ASK cells were selected for expression analysis and to identify their mRNA targets. Read More

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Oxidative Phosphorylation-Mediated E-Selectin Upregulation Is Associated With Endothelia-Monocyte Adhesion in Human Coronary Artery Endothelial Cells Treated With Sera From Patients With Kawasaki Disease.

Front Pediatr 2021 22;9:618267. Epub 2021 Feb 22.

Department of Cardiology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.

E-selectin is a cell adhesion molecule of the vascular endothelium that mediates leukocyte rolling in the early inflammatory responses in many diseases including Kawasaki disease (KD). Previous studies have demonstrated that the expression levels of E-selectin was significantly increased in the sera of KD patients and in endothelial cells of KD patient's autopsy. In this study, we aimed to examine E-selectin levels in endothelial cells treated with sera from KD patients and explore the underlying mechanisms. Read More

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February 2021

Adaptation and convergence in circadian-related genes in Iberian freshwater fish.

BMC Ecol Evol 2021 Mar 8;21(1):38. Epub 2021 Mar 8.

cE3c - Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal.

Background: The circadian clock is a biological timing system that improves the ability of organisms to deal with environmental fluctuations. At the molecular level it consists of a network of transcription-translation feedback loops, involving genes that activate (bmal and clock - positive loop) and repress expression (cryptochrome (cry) and period (per) - negative loop). This is regulated by daily alternations of light but can also be affected by temperature. Read More

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Nutrient Digestibility, Growth, Mucosal Barrier Status, and Activity of Leucocytes From Head Kidney of Atlantic Salmon Fed Marine- or Plant-Derived Protein and Lipid Sources.

Front Immunol 2020 19;11:623726. Epub 2021 Feb 19.

Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway.

Nutrient digestibility, growth, and mucosal barrier status of fish skin, gills, and distal intestine were studied in Atlantic salmon fed feeds based on marine or plant-derived ingredients. The barrier status was assessed by considering the expression of four mucin genes, five genes that encode antimicrobial proteins, distal intestine micromorphology, and design-based stereology of the midgut epithelium. In addition, the head kidney leukocytes were examined using flow cytometry; to understand the differences in their counts and function. Read More

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February 2021

Antenatal iron supplementation, FGF23, and bone metabolism in Kenyan women and their offspring: secondary analysis of a randomized controlled trial.

Am J Clin Nutr 2021 Mar 1. Epub 2021 Mar 1.

Wageningen University, Division of Human Nutrition and Health, P.O. Box 17, 6700 AA Wageningen, The Netherlands.

Background: Fibroblast growth factor-23 (FGF23) regulates body phosphate homeostasis primarily by increasing phosphaturia. It also acts as a vitamin D-regulating hormone. Maternal iron deficiency is associated with perturbed expression and/or regulation of FGF23 and hence might be implicated in the pathogenesis of hypophosphatemia-driven rickets in their offspring. Read More

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Resistance Training Diminishes the Expression of Exosome CD63 Protein without Modification of Plasma miR-146a-5p and cfDNA in the Elderly.

Nutrients 2021 Feb 19;13(2). Epub 2021 Feb 19.

Exercise Biochemistry Laboratory, Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, FL 33431, USA.

Aging-associated inflammation is characterized by senescent cell-mediated secretion of high levels of inflammatory mediators, such as microRNA (miR)-146a. Moreover, a rise of circulating cell-free DNA (cfDNA) is also related to systemic inflammation and frailty in the elderly. Exosome-mediated cell-to-cell communication is fundamental in cellular senescence and aging. Read More

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February 2021

PCB and TCDD derived embryonic cardiac defects result from a novel AhR pathway.

Aquat Toxicol 2021 Apr 25;233:105794. Epub 2021 Feb 25.

Department of Biology, Queens College, City University of New York, 65-30 Kissena Blvd, Queens NY 11367-1597, USA; The Graduate Center, City University of New York, 365 Fifth Avenue, New York, NY 10016, USA. Electronic address:

Polychlorinated biphenyls (PCBs) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) are environmental contaminants known to impact cardiac development, a key step in the embryonic development of most animals. To date, little is understood of the molecular mechanism driving the observed cardiac defects in exposed fishes. The literature shows PCB & TCDD derived cardiac defects are concurrent with, but not caused by, expression of cyp1A, due to activation of the aryl hydrocarbon receptor (AhR) gene activation pathway. Read More

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Chromosome level reference of Atlantic halibut Hippoglossus hippoglossus provides insight into the evolution of sexual determination systems.

Mol Ecol Resour 2021 Mar 2. Epub 2021 Mar 2.

Biology Department, Dalhousie University, Halifax, NS, Canada.

Changes in the genetic mechanisms that control sexual determination have occurred independently across the tree of life, and with exceptional frequency in teleost fishes. To investigate the genomic changes underlying the evolution of sexual determination, we sequenced a chromosome-level genome, multitissue transcriptomes, and reduced representation population data for the Atlantic halibut (Hippoglossus hippoglossus), which has an XY/XX sex determination mechanism and has recently diverged (0.9-3. Read More

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Identifying facial expressions in dogs: A replication and extension study.

Behav Processes 2021 Feb 27;186:104371. Epub 2021 Feb 27.

Harvard University & University of Florida, United States.

This study replicated and extended previous research (Bloom & Friedman, 2013) indicating that humans can correctly identify emotional expressions in photographs of dog faces when tested with one breed (i.e., a Malinois). Read More

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February 2021

Administration of a recombinant ALDH7A1 (rA7) indicates potential regulation of the metabolite and immunology pathways in Atlantic salmon infected with Aeromonas salmonicida.

J Fish Dis 2021 Mar 1. Epub 2021 Mar 1.

College of Marine Technology and Environment, Dalian Ocean University, Dalian, China.

The bacterium Aeromonas salmonicida is the pathogen responsible for furunculosis, which is a serious disease of salmonids. This disease has a significant economic impact on the economic benefits of the global salmon farming industry. However, the pathogenesis of this disease in fish is still unknown. Read More

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Transcriptome Profiling of Long Non-coding RNAs During the Atlantic Salmon Smoltification Process.

Mar Biotechnol (NY) 2021 Apr 27;23(2):308-320. Epub 2021 Feb 27.

Interdisciplinary Center for Aquaculture Research (INCAR), University of Concepción, Concepción, Chile.

For salmon aquaculture, one of the most critical phase is the parr-smolt transformation. Studies around this process have mainly focused on physiological changes and the Na/K-ATPase activity during the osmoregulatory activity. However, understanding how the salmon genome regulates the parr-smolt transformation, specifically the molecular mechanisms involved, remains uncovered. Read More

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Genomic divergence and differential gene expression between crustacean ecotypes across a marine thermal gradient.

Mar Genomics 2021 Feb 23:100847. Epub 2021 Feb 23.

Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, University of Johannesburg, Auckland Park 2006, South Africa. Electronic address:

Environmental gradients between marine biogeographical provinces separate distinct faunal communities. However, the absence of absolute dispersal barriers allows numerous species to occur on both sides of such boundaries. While the regional populations of such widespread species are often morphologically indistinguishable from each other, genetic evidence suggests that they represent unique ecotypes, and likely even cryptic species, that may be uniquely adapted to their local environment. Read More

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February 2021

The Atlantic salmon whole blood transcriptome and how it relates to major locus maturation genotypes and other tissues.

Mar Genomics 2021 Apr 31;56:100809. Epub 2020 Jul 31.

Organismal and Evolutionary Biology Research Programme, University of Helsinki, Finland. Electronic address:

The Atlantic salmon (Salmo salar) is important to many ecosystems and local economies and has therefore become the focus of a broad range of research questions that have benefited from the availability of high-quality genomic resources. Albeit gene expression studies have been extensive for this species, the transcriptome information for Atlantic salmon whole blood has been lacking. A transcriptome of Atlantic salmon blood would be a valuable resource for future studies, especially those wishing to take non-lethal samples. Read More

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Transkingdom network analysis provides insight into host-microbiome interactions in Atlantic salmon.

Comput Struct Biotechnol J 2021 29;19:1028-1034. Epub 2021 Jan 29.

Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, 1432 Ås, Norway.

Background: The Atlantic salmon gut constitutes an intriguing system for studying host-microbiota interactions due to the dramatic environmental change salmon experiences during its life cycle. Yet, little is known about the role of interactions in this system and there is a general deficit in computational methods for integrative analysis of omics data from host-microbiota systems.

Methods: We developed a pipeline to integrate host RNAseq data and microbial 16S rRNA amplicon sequencing data using weighted correlation network analysis. Read More

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January 2021

Targeted Top-Down Mass Spectrometry for the Characterization and Tissue-Specific Functional Discovery of Crustacean Hyperglycemic Hormones (CHH) and CHH Precursor-Related Peptides in Response to Low pH Stress.

J Am Soc Mass Spectrom 2021 Feb 19. Epub 2021 Feb 19.

Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706, United States.

Crustacean hyperglycemic hormones (CHHs) are a family of neuropeptides that were discovered in multiple tissues in crustaceans, but the function of most isoforms remains unclear. Functional discovery often requires comprehensive qualitative profiling and quantitative analysis. The conventional enzymatic digestion method has several limitations, such as missing post-translational modification (PTM) information, homology interference, and incomplete sequence coverage. Read More

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February 2021

The Late Miocene Rifian corridor as a natural laboratory to explore a case of ichnofacies distribution in ancient gateways.

Sci Rep 2021 Feb 18;11(1):4198. Epub 2021 Feb 18.

Department of Earth Sciences, Royal Holloway University of London, Egham, TW20 0EX, Surrey, UK.

Oceanic gateways have modulated ocean circulation and have influenced climatic variations throughout the Earth´s history. During the late Miocene (7.8-7. Read More

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February 2021

LINE retrotransposons characterize mammalian tissue-specific and evolutionarily dynamic regulatory regions.

Genome Biol 2021 Feb 18;22(1):62. Epub 2021 Feb 18.

European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK.

Background: To investigate the mechanisms driving regulatory evolution across tissues, we experimentally mapped promoters, enhancers, and gene expression in the liver, brain, muscle, and testis from ten diverse mammals.

Results: The regulatory landscape around genes included both tissue-shared and tissue-specific regulatory regions, where tissue-specific promoters and enhancers evolved most rapidly. Genomic regions switching between promoters and enhancers were more common across species, and less common across tissues within a single species. Read More

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February 2021

Hepatic gene expression profiling of OPFR exposed Atlantic cod (Gadus morhua) liver revealed altered cholesterol biosynthesis and lipid metabolism.

Environ Toxicol Chem 2021 Feb 16. Epub 2021 Feb 16.

Norwegian Institute of Air Research (NILU), The Fram Centre Norway.

Since the phasing out and eventual ban on the production of organohalogen flame retardants, the use of organophosphate flame retardants (OPFRs) has increased rapidly. This has led to the detection of OPFRs in various environments including the Arctic. Two of the most prevalent OPFRs found in the Arctic are the tris 2-chloropropy phosphate (TCPP), and the 2-ethyldiphenyl phosphate (EHDPP). Read More

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February 2021

Genome sequencing analysis identifies new loci associated with Lewy body dementia and provides insights into its genetic architecture.

Authors:
Ruth Chia Marya S Sabir Sara Bandres-Ciga Sara Saez-Atienzar Regina H Reynolds Emil Gustavsson Ronald L Walton Sarah Ahmed Coralie Viollet Jinhui Ding Mary B Makarious Monica Diez-Fairen Makayla K Portley Zalak Shah Yevgeniya Abramzon Dena G Hernandez Cornelis Blauwendraat David J Stone John Eicher Laura Parkkinen Olaf Ansorge Lorraine Clark Lawrence S Honig Karen Marder Afina Lemstra Peter St George-Hyslop Elisabet Londos Kevin Morgan Tammaryn Lashley Thomas T Warner Zane Jaunmuktane Douglas Galasko Isabel Santana Pentti J Tienari Liisa Myllykangas Minna Oinas Nigel J Cairns John C Morris Glenda M Halliday Vivianna M Van Deerlin John Q Trojanowski Maurizio Grassano Andrea Calvo Gabriele Mora Antonio Canosa Gianluca Floris Ryan C Bohannan Francesca Brett Ziv Gan-Or Joshua T Geiger Anni Moore Patrick May Rejko Krüger David S Goldstein Grisel Lopez Nahid Tayebi Ellen Sidransky Lucy Norcliffe-Kaufmann Jose-Alberto Palma Horacio Kaufmann Vikram G Shakkottai Matthew Perkins Kathy L Newell Thomas Gasser Claudia Schulte Francesco Landi Erika Salvi Daniele Cusi Eliezer Masliah Ronald C Kim Chad A Caraway Edwin S Monuki Maura Brunetti Ted M Dawson Liana S Rosenthal Marilyn S Albert Olga Pletnikova Juan C Troncoso Margaret E Flanagan Qinwen Mao Eileen H Bigio Eloy Rodríguez-Rodríguez Jon Infante Carmen Lage Isabel González-Aramburu Pascual Sanchez-Juan Bernardino Ghetti Julia Keith Sandra E Black Mario Masellis Ekaterina Rogaeva Charles Duyckaerts Alexis Brice Suzanne Lesage Georgia Xiromerisiou Matthew J Barrett Bension S Tilley Steve Gentleman Giancarlo Logroscino Geidy E Serrano Thomas G Beach Ian G McKeith Alan J Thomas Johannes Attems Christopher M Morris Laura Palmer Seth Love Claire Troakes Safa Al-Sarraj Angela K Hodges Dag Aarsland Gregory Klein Scott M Kaiser Randy Woltjer Pau Pastor Lynn M Bekris James B Leverenz Lilah M Besser Amanda Kuzma Alan E Renton Alison Goate David A Bennett Clemens R Scherzer Huw R Morris Raffaele Ferrari Diego Albani Stuart Pickering-Brown Kelley Faber Walter A Kukull Estrella Morenas-Rodriguez Alberto Lleó Juan Fortea Daniel Alcolea Jordi Clarimon Mike A Nalls Luigi Ferrucci Susan M Resnick Toshiko Tanaka Tatiana M Foroud Neill R Graff-Radford Zbigniew K Wszolek Tanis Ferman Bradley F Boeve John A Hardy Eric J Topol Ali Torkamani Andrew B Singleton Mina Ryten Dennis W Dickson Adriano Chiò Owen A Ross J Raphael Gibbs Clifton L Dalgard Bryan J Traynor Sonja W Scholz

Nat Genet 2021 03 15;53(3):294-303. Epub 2021 Feb 15.

Neurodegenerative Diseases Research Unit, Laboratory of Neurogenetics, National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA.

The genetic basis of Lewy body dementia (LBD) is not well understood. Here, we performed whole-genome sequencing in large cohorts of LBD cases and neurologically healthy controls to study the genetic architecture of this understudied form of dementia, and to generate a resource for the scientific community. Genome-wide association analysis identified five independent risk loci, whereas genome-wide gene-aggregation tests implicated mutations in the gene GBA. Read More

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A preliminary gene expression analysis on Paracentrotus lividus embryos exposed to UVB, Cadmium and their combination.

Aquat Toxicol 2021 Feb 3;232:105770. Epub 2021 Feb 3.

Consiglio Nazionale delle Ricerche, Istituto per la Ricerca e l'Innovazione Biomedica, Via Ugo La Malfa 153, Palermo, 90146, Italy.

Paracentrotus lividus is a Mediterranean and Eastern Atlantic sea urchin species, very sensitive to chemical and physical environmental changes and widely used in eco-toxicological studies. Here, we applied a high throughput screening approach on P. lividus embryos exposed to UVB radiation (UV), Cadmium Chloride (Cd) and their combination (Cd/UV), to deeply characterize the molecular responses adopted by embryos to cope with these stressors. Read More

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February 2021