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MULTIPLE ISOLATES FROM AIDS PATIENTS: ASPECTS OF AN ANALYSIS BY A GENOTYPIC MARKER AND ANTIMICROBIAL SUSCEPTIBILITIES VARIATIONS
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Abstract
biomagnification processes. Therefore, this study aimed to assess total Hg (THg) concentrations in
S. albicaudus, a deep-water species, sampled off Southeastern Brazil and discuss ecological, reproductive,
human consumption and conservation implications. Thirty-two individuals were sampled off the coast of
Rio de Janeiro, including 13 gravid females carrying 34 embryos. Muscle THg concentrations were higher
in all sex classes compared to liver, gonads and brain. The last three, in turn, presented THg concentrations above toxic biota thresholds. Significant correlations were observed between muscle and brain
and liver, indicating systemic Hg contamination and inter-organ transport and distribution. In addition,
correlations observed between organs strongly support efficient Hg blood-brain barrier crossing and
maternal transfer. Maternal THg transfer was observed, with embryo THg also above toxic thresholds for
fish. THg levels in muscle and liver, as well as embryos, were higher compared to other Squalus species.
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