Evidence map›Paper›PMID 36662217›Full record

ArticleMarine drugs2023

Paralytic Shellfish Toxins in the Gastropod

Miriam Seguel, Carlos Molinet, Manuel Díaz, Gonzalo Álvarez, Carlos García, Andrés Marín, María Olga Millanao, Patricio A Díaz

Open access · goldAbstract read
In one paragraph

Article in Marine drugs, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 41% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Miriam SeguelCentro Regional de Análisis de Recursos y Medio Ambiente (CERAM), Universidad Austral de Chile, Puerto Montt 5480000, Chile.
Carlos MolinetInstituto de Acuicultura, Programa de Investigación Pesquera, Universidad Austral de Chile, Los Pinos S/N, Puerto Montt 5480000, Chile.ORCID 0000-0003-3702-0526
Manuel DíazInstituto de Acuicultura, Programa de Investigación Pesquera, Universidad Austral de Chile, Los Pinos S/N, Puerto Montt 5480000, Chile.
Gonzalo ÁlvarezFacultad de Ciencias del Mar, Departamento de Acuicultura, Universidad Católica del Norte, Larrondo 12181, Coquimbo 1780000, Chile.ORCID 0000-0001-5812-1559
Carlos GarcíaLaboratorio de Toxinas Marinas, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile.ORCID 0000-0001-7594-2156
Andrés MarínCentro de Estudios del Desarrollo Regional y Políticas Públicas (CEDER), Universidad de Los Lagos, Osorno 5290000, Chile.ORCID 0000-0003-4338-7260
María Olga MillanaoBadinotti Group-Chile, Ruta 226, km 9.2, El Tepual, Puerto Montt 5480000, Chile.
Patricio A DíazCentro i~mar & CeBiB, Universidad de Los Lagos, Casilla 557, Puerto Montt 5480000, Chile.ORCID 0000-0002-9403-8151
Austral University of Chile · CLUniversidad de Los Lagos · CLUniversidad Católica del Norte · CLUniversity of Chile · CL

Funding

Ministry of Health, Chile ID757-77-LE17
6 · The paper itself

Abstract

Harmful algal blooms of toxin-producing microalgae are recurrent in southern Chile. Paralytic shellfish poisoning (PSP) outbreaks pose the main threat to public health and the fishing industry in the Patagonian fjords. This study aims to increase understanding of the individual and spatial variability of PSP toxicity in the foot of Concholepas concholepas, Chile’s most valuable commercial benthic invertebrate species, extracted from the Guaitecas Archipelago in Chilean Patagonia. The objective is to determine the effect of pigment removal and freezing during the detoxification process. A total of 150 specimens (≥90 mm length) were collected from this area. The live specimens were transferred to a processing plant, where they were measured and gutted, the foot was divided into two equal parts, and pigment was manually removed from one of these parts. The PSP toxicity of each foot (edible tissue) was determined by mouse bioassay (MBA) and high-performance liquid chromatography with fluorescence detection and postcolumn oxidation (HPLC-FLD PCOX). The individual toxicity per loco, as the species is known locally, varied from <30 to 146 μg STX diHCL eq 100 g−1 (CV = 43.83%) and from 5.96 to 216.3 μg STX diHCL eq 100 g−1 (CV = 34.63%), using MBA and HPLC, respectively. A generalized linear model showed a negative relation between individual weight and toxicity. The toxicological profile showed a dominance of STX (>95%), neoSTX and GTX2. The removal of pigment produced a reduction in PSP toxicity of up to 90% and could represent a good detoxification tool moving forward. The freezing process in the muscle with pigment did not produce a clear pattern. There is a significant reduction (p < 0.05) of PSP toxicity via PCOX but not MBA. Furthermore, the study discusses possible management and commercialization implications of the findings regarding small-scale fisheries.

Indexed as

GastropodaShellfish PoisoningAnimalsChromatography, High Pressure LiquidMarine ToxinsMiceSaxitoxinShellfishMarine ToxinsSaxitoxinChilean Patagoniaharmful algal bloomsHPLC-FLD PCOXlocoMBAparalytic shellfish toxinspigment

Identifiers

PMID36662217
PMCPMC9866859
OpenAlexW4313826636

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.