Publications by authors named "Barak Dror"

Background: Assessments of gaze direction (eye movements), pupil size, and the pupillary light reflex (PLR) are critical for neurological examination and neuroscience research and constitute a powerful tool in diverse clinical settings ranging from critical care through endocrinology and drug addiction to cardiology and psychiatry. However, current bedside pupillometry is typically intermittent, qualitative, manual, and limited to open-eye cases, restricting its use in sleep medicine, anesthesia, and intensive care.

Methods: We combined short-wave infrared (SWIR, ~0.

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Article Synopsis
  • Flavobacteria can metabolize complex organic compounds and move uniquely, often found in plant root microbiomes; however, reasons for their abundance are unclear.
  • Both studied flavobacterial strains expanded colonies on various polysaccharides, with pectin notably boosting growth on solid surfaces, while pectin monomers did not.
  • Analyses indicated that pectin significantly activated proteins related to carbohydrate metabolism, implying a link between certain operons for glycan uptake and the growth of flavobacteria, suggesting pectin aids both in expansion on plants and as a carbon source.
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Polyketides (PKs) and nonribosomal peptides (NRPs) are two microbial secondary metabolite (SM) families known for their variety of functions, including antimicrobials, siderophores, and others. Despite their involvement in bacterium-bacterium and bacterium-plant interactions, root-associated SMs are largely unexplored due to the limited cultivability of bacteria. Here, we analyzed the diversity and expression of SM-encoding biosynthetic gene clusters (BGCs) in root microbiomes by culture-independent amplicon sequencing, shotgun metagenomics, and metatranscriptomics.

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Excessive use of antimicrobials in aquaculture is concerning, given possible environmental ramifications and the potential contribution to the spread of antimicrobial resistance (AR). In this study, we explored seasonal abundance of antimicrobial resistance genes and bacterial community composition in the water column of an intensive aquaculture pond stocked with Silver Carp () prophylactically treated with sulfamethoprim (25% sulfadiazine; 5% trimethoprim), relative to an adjacent unstocked reservoir. Bacterial community composition was monitored using high-throughput sequencing of 16S gene amplicons in eight sampling profiles to determine seasonal dynamics, representing principal stages in the fish fattening cycle.

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During nonventilated storage of carrots, CO gradually accumulates to high levels and causes modifications in the carrot's microbiome toward dominance of and The lactic acid bacterium secretes a slimy exudate over the surface of the carrots. The objective of this study was to characterize the slime components and the potential cause for its secretion under high CO levels. A proteomic analysis of the exudate revealed bacterial glucosyltransferases as the main proteins, specifically, dextransucrase.

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Long-term storage and transport of post-harvest carrots (Daucus carota L.) require a low-temperature, high-relative-humidity environment, usually with low ventilation. Following long-term storage, a slimy exudate (oozing) often appears on the carrots, leading to severe spoilage.

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