Publications by authors named "John Bucci"

Microbes in marine sediments constitute a large percentage of the global marine ecosystem and function to maintain a healthy food web. In continental shelf habitats such as the Gulf of Maine (GoM), relatively little is known of the microbial community abundance, biodiversity, and natural product potential. This report is the first to provide a time-series assessment (2017-2020) of the sediment microbial structure in areas open and closed to fishing within the Stellwagen Bank National Marine Sanctuary (SBNMS).

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Understanding the marine sediment microbial community structure is of increasing importance to microbiologists since little is known of the diverse taxonomy that exists within this environment. Quantifying microbial species distribution patterns within marine sanctuaries is necessary to address conservation requirements. The objectives of this study were to characterize the relative abundance and biodiversity of metagenome samples of the sediment microbial community in the Stellwagen Bank National Marine Sanctuary (SBNMS).

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Stellwagen Bank National Marine Sanctuary (SBNMS) in the Gulf of Maine is a historic fishing ground renowned for remarkable productivity. Biodiversity conservation is a key management priority for SBNMS and yet data on the diversity of microorganisms, both prokaryotic and eukaryotic, is lacking. This study utilized next generation sequencing to characterize sedimentary communities within SBNMS at three sites over two seasons.

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Article Synopsis
  • Climate change is changing marine life, with ocean acidification negatively impacting organisms like Pacific oysters, while seagrasses like eelgrass benefit from increased carbon for photosynthesis.
  • Co-culturing juvenile oysters with eelgrass showed that under high pCO conditions, eelgrass thrived and experienced less disease severity, although oysters did not show significant mass increase.
  • In further experiments, exposure to pathogens altered eelgrass's defensive compounds, and while high pCO decreased eelgrass disease severity, the presence of oysters did not significantly affect pathogen loads or disease outcomes.
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Early detection of colorectal cancer (CRC) is key to reducing associated mortality. Despite the importance of early detection, approximately 40% of individuals in the United States between the ages of 50-75 have never been screened for CRC. The low compliance with colonoscopy and fecal-based screening may be addressed with a non-invasive alternative such as a blood-based test.

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Water quality impairment by fecal waste in coastal watersheds is a public health issue. The present study provided evidence for the use of a mitochondrial (mtDNA) marker to detect animal fecal sources in surface water. The accurate identification of fecal pollution is based on the notion that fecal microorganisms preferentially inhabit a host animal's gut environment.

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Studies on Huntington's disease (HD) demonstrated altered immune response in HD gene carriers. Using multiplexing immunoassay, we simultaneously investigated seven cytokines in secretomes of microglia and blood monocytes, cerebrospinal fluid (CSF) and serum collected from transgenic HD minipigs at pre-symptomatic disease stage. Decline in IFNα and IL-10 was observed in CSF and secretome of microglia whilst elevated IL-8 and IL-1β levels were secreted by microglia.

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New biomarkers for type 2 diabetes mellitus (T2DM) may aid diagnosis, drug development or clinical treatment. Evidence is increasing for the adaptive immune system's role in T2DM and suggests the presence of unidentified autoantibodies. While high-density protein microarrays have emerged as a useful technology to identify possible novel autoantigens in autoimmune diseases, its application in T2DM has lagged.

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