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What can simple brains teach us about how vision works

Authors: --- --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889196784 Year: Pages: 290 DOI: 10.3389/978-2-88919-678-4 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2016-08-16 10:34:25
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Vision is the process of extracting behaviorally-relevant information from patterns of light that fall on retina as the eyes sample the outside world. Traditionally, nonhuman primates (macaque monkeys, in particular) have been viewed by many as the animal model-of-choice for investigating the neuronal substrates of visual processing, not only because their visual systems closely mirror our own, but also because it is often assumed that “simpler” brains lack advanced visual processing machinery. However, this narrow view of visual neuroscience ignores the fact that vision is widely distributed throughout the animal kingdom, enabling a wide repertoire of complex behaviors in species from insects to birds, fish, and mammals. Recent years have seen a resurgence of interest in alternative animal models for vision research, especially rodents. This resurgence is partly due to the availability of increasingly powerful experimental approaches (e.g., optogenetics and two-photon imaging) that are challenging to apply to their full potential in primates. Meanwhile, even more phylogenetically distant species such as birds, fish, and insects have long been workhorse animal models for gaining insight into the core computations underlying visual processing. In many cases, these animal models are valuable precisely because their visual systems are simpler than the primate visual system. Simpler systems are often easier to understand, and studying a diversity of neuronal systems that achieve similar functions can focus attention on those computational principles that are universal and essential. This Research Topic provides a survey of the state of the art in the use of animal models of visual functions that are alternative to macaques. It includes original research, methods articles, reviews, and opinions that exploit a variety of animal models (including rodents, birds, fishes and insects, as well as small New World monkey, the marmoset) to investigate visual function. The experimental approaches covered by these studies range from psychophysics and electrophysiology to histology and genetics, testifying to the richness and depth of visual neuroscience in non-macaque species.

Are Rodent Models Fit for Investigation of Human Obesity and Related Diseases?

Authors: --- --- --- --- et al.
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889454259 Year: Pages: 161 DOI: 10.3389/978-2-88945-425-9 Language: English
Publisher: Frontiers Media SA
Subject: Medicine (General) --- Nutrition and Food Sciences --- Internal medicine
Added to DOAB on : 2018-11-16 17:17:57
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Not only developed countries, but also most developing areas of the world, have experienced a surge in obesity prevalence over recent decades. Obesity complications are now among the leading causes of premature mortality, encompassing conditions such as coronary heart disease, stroke, and type 2 diabetes. This places a heavy burden on contemporary healthcare systems. While rodent models have limitations as experimental models of human obesity-related disease, study of rats and mice either spontaneously prone - or resistant - to obesity, or genetically engineered to illuminate underlying mechanisms has yielded key information about the metabolic defects linked to obesity, and their associated diseases. This topic includes both original research studies and reviews of the use of animal studies in specific areas of obesity-related disease. Various methodological approaches are discussed, with evaluation of the extent to which use of animal models has facilitated progress, or, conversely, has proved a cul de sac in investigation of human disease mechanisms. Consideration is also given to future strategies to use such rodent models optimally to enhance comprehension and treatment of pandemic human obesity-related diseases.

New Insights into Parvovirus Research

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ISBN: 9783039283101 / 9783039283118 Year: Pages: 342 DOI: 10.3390/books978-3-03928-311-8 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Internal medicine
Added to DOAB on : 2020-06-09 16:38:57
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Viruses in the Parvoviridae family constitute one of the most diverse and intriguing fields of research. While they all share an ssDNA genome and a small capsid, they can differ widely in structure, genome organization and expression, virus–cell interaction, and impact on the host. Exploring such diversity and unraveling the inherent complexity in these apparently simple viruses is an ongoing endeavor and commitment for the scientific community. The translational implications of research on parvoviruses are relevant. Within the family, some viruses are important human and veterinary pathogens, in need of diagnostic methods and antiviral strategies; other viruses have long been studied and engineered as tools for oncolytic therapy, or as sophisticated gene delivery vectors, and can now display their wide and expanding applicative potential. This Special Issue of Viruses collects recent contributions in the field of parvovirus research, with a focus on new insights and research on unresolved issues, as well as new approaches exploiting systemic methodologies. Evolution, structural biology, viral replication, virus–host interaction, pathogenesis and immunity, and viral oncotherapy are a selection of the topics addressed in the issue that can be of relevance to the community involved in parvovirus research and of interest to a wider audience.

Keywords

human bocavirus --- children --- acute gastroenteritis --- parvovirus --- human bocavirus 1 --- RNA-seq --- transcription profile --- human airway epithelia --- AAV2 --- adeno-associated virus --- bisulfite PCR --- CpG methylation --- DNA virus --- Parvoviridae --- telbivudine --- B19V --- circulating angiogenic cells --- apoptosis --- caspase-3 --- BIRC3 (cIAP-2) --- parvovirus --- viral metagenomics --- virus diversity --- virus phylogeny --- agricultural pests --- arthropod --- mite --- viral communities --- viral ecology --- Carnivore protoparvovirus 1 --- canine parvovirus --- feline panleukopenia virus --- NS1 --- NS2 --- sequence analysis --- evolution --- Bombyx mori bidensovirus --- RACE --- RT-qPCR --- transcription mapping --- overlapping promoters --- parvovirus --- densovirus --- single stranded DNA virus --- X-ray crystallography --- Cryo-EM --- antibody interactions --- receptor interactions --- parvovirus --- viral metagenomics --- canine chapparvovirus --- Adeno-associated virus --- AAV --- protease --- phospholipase-A2 --- PLA2 --- rodent protoparvoviruses --- oncolytic activity --- tumor microenvironment --- immunomodulation --- preclinical --- clinical trials --- B19V --- parvovirus --- uncoating --- divalent cations --- capsid stability --- genome externalization --- trafficking --- nuclear targeting --- equine parvovirus-hepatitis --- horses --- commercial horse serum --- phylogeny --- chapparvovirus --- parvovirus evolution --- endogenous viral elements --- Parvoviridae --- densovirus --- homology modeling --- new viruses --- oncolytic virus immune therapy --- rodent protoparvoviruses --- H-1PV --- combination therapies --- second generation parvovirus treatments --- parvovirus B19 --- B19V --- erythrovirus --- diagnosis --- dilated cardiomyopathy --- inflammatory cardiomyopathy --- myocarditis --- prognosis --- parvovirus B19 --- erythroid progenitor cells --- antiviral compounds --- intravenous immunoglobulin (IVIG) --- hydroxyurea --- cidofovir --- brincidofovir --- coumarin derivatives --- flavonoids --- alpaca --- virus --- Bocaparvovirus --- genome --- next-generation sequencing --- metagenomics --- parvovirus B19 --- adenoviral vector --- cell cycle arrest --- apoptosis --- anti-cancer --- insect --- Lepidoptera --- insect parvovirus --- chitin --- peritrophins --- glycans --- biocontrol --- parvovirus --- structural biology --- genetics --- oncolytic viruses --- antivirals

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