Densovirus associated with sea-star wasting disease and mass mortality

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Densovirus associated with sea-star wasting disease and mass mortality.

Populations of at least 20 asteroid species on the Northeast Pacific Coast have recently experienced an extensive outbreak of sea-star (asteroid) wasting disease (SSWD). The disease leads to behavioral changes, lesions, loss of turgor, limb autotomy, and death characterized by rapid degradation ("melting"). Here, we present evidence from experimental challenge studies and field observations tha...

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Decreased Temperature Facilitates Short-Term Sea Star Wasting Disease Survival in the Keystone Intertidal Sea Star Pisaster ochraceus

An extensive 2013 mass mortality event along the West Coast of North America due to Sea Star Wasting Disease (SSWD) has affected at least 20 species of sea stars. Among environmental factors potentially contributing to the timing of the current outbreak, increased coastal water temperatures are hypothesized to have contributed to previous and current outbreaks of SSWD. With a laboratory experim...

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Left ventricular mass correlates with lean body mass in patients with disease-associated wasting

Dear Editor, The key feature of disease-associated malnutrition, or cachexia, is muscle wasting [1]. However, an efficient tool for the assessment of skeletal muscularity in daily practice is not available yet [2]. We recently demonstrated that left ventricular mass (LVM) as measured by echocardiography reflects nutritional status in patients with systemic sclerosis [3]. Similarly to skeletal m...

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Up in Arms: Immune and Nervous System Response to Sea Star Wasting Disease

Echinoderms, positioned taxonomically at the base of deuterostomes, provide an important system for the study of the evolution of the immune system. However, there is little known about the cellular components and genes associated with echinoderm immunity. The 2013-2014 sea star wasting disease outbreak is an emergent, rapidly spreading disease, which has led to large population declines of ast...

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Sea Star Wasting Disease in Asterias forbesi along the Atlantic Coast of North America

As keystone species, sea stars serve to maintain biodiversity and species distribution through trophic level interactions in marine ecosystems. Recently, Sea Star Wasting Disease (SSWD) has caused widespread mass mortality in several sea star species from the Pacific Coast of the United States of America (USA) and Asterias forbesi on the Atlantic Coast. A densovirus, named Sea Star associated D...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2014

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.1416625111