Publications by authors named "L Pallares Ferreres"

Article Synopsis
  • Pufferfish, known for being highly toxic due to neurotoxins like tetrodotoxins and paralytic shellfish toxins, poses a serious risk to human health and has caused many poisoning incidents.
  • A study analyzed tissue extracts from two pufferfish species collected from the Spanish Mediterranean, revealing no toxicity in Sphoeroides pachygaster but significant toxicity in the liver of Lagocephalus lagocephalus specimens.
  • High-performance liquid chromatography analysis confirmed the presence of paralytic shellfish toxins, particularly saxitoxin and decarbamoylsaxitoxin, in L. lagocephalus, highlighting a food safety concern due to the potential risks associated with consuming this toxic fish in the region. *
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Thrombotic microangiopathy (TMA), characterized by microangiopathic hemolytic anemia, thrombocytopenia, and multisystem organ dysfunction, is a life-threatening disease. Patients with TMA who do not exhibit a severe ADAMTS-13 deficiency (defined as a disintegrin-like and metalloprotease with thrombospondin type 1 motif no. 13 activity ≥10%: TMA-13n) continue to experience elevated mortality rates.

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Paralytic shellfish poisoning (PSP) episodes cause important economic impacts due to closure of shellfish production areas in order to protect human health. These closures, if are frequent and persistent, can seriously affect shellfish producers and the seafood industry, among others. In this study, we have developed an alternative processing method for bivalves with PSP content above the legal limit, which allows reducing toxicity to acceptable levels.

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Article Synopsis
  • Rapid immunoassay methods have been developed to detect diarrhetic shellfish poisoning (DSP) toxins in seawater, essential for protecting public health and the shellfish industry.* ! -
  • These assays specifically target okadaic acid (OA) and two related toxins, achieving a detection limit of about 1 ng OA equiv./mL in seawater, and have been tested on samples from Catalan harbors and the Galician Rias.* ! -
  • Findings show that OA levels in seawater correlate with Dinophysis cell counts, but with a delay of 1-2 weeks, indicating that these immunoassays could serve as effective, high-throughput monitoring tools for DSP toxins.* !
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Solid-phase extraction (SPE) combined with liquid chromatography electrospray mass spectrometry (LC-(ESI)MS) was used to determine 16 non-ionic and anionic surfactants in different environmental water samples at ng L(-1) levels. The proposed method is sensitive and simple and has good linear range and detection limits (less than 50 ng L(-1)) for most compound classes. The effect of ion suppression was studied in aqueous matrices from several treatment plants-including urban and industrial wastewater treatment plants (WWTPs), drinking-water treatment plants (DWTPs) and seawater desalination plants (SWDPs)-and it was considered when quantifying our samples.

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