Results 51 to 60 of about 609 (132)

First report of toxigenic Amphidoma languida (Amphidomataceae, Dinophyceae) from the Pacific, with reference to intracellular ultrastructure and azaspiracid compounds

Phycological Research, Volume 72, Issue 4, Page 266-278, October 2024.
SUMMARY Morphology, phylogeny and azaspiracid (AZA) production of a strain of Amphidoma languida isolated from the subtropical Mexican Pacific were examined. Scanning electron microscopy showed the thecal plate arrangement of Am. languida from Mexico as Po, cp, X, 6′, 6′′, 6C, 5S, 6′′′, 2′′′′, with the prominent apical pore complex, the ventral pore on
Koyo Kuwata, David U. Hernández‐Becerril, Mayu Ozawa, Hajime Uchida, Wai Mun Lum, Kazuya Takahashi, Garry Benico, Toshiyuki Suzuki, Mitsunori Iwataki   +8 more
wiley   +1 more source

Improved Isolation Procedure for Azaspiracids from Shellfish, Structural Elucidation of Azaspiracid-6, and Stability Studies

, 2016
Azaspiracids are a group of lipophilic polyether toxins produced by the small dinoflagellate Azadinium spinosum. They may accumulate in shellfish and can result in illnesses when consumed by humans. Research into analytical methods, chemistry, metabolism,
Jane Kilcoyne (1450081), Patricia LeBlanc (2103892), Ian Burton (499385), Michael A. Quilliam (2103898), Philipp Hess (1450084), Christopher O. Miles (1288326), Ger Clancy (2103901), Adela Keogh (2103895)   +7 more
core   +1 more source

Review: Impact of food safety on global trade

Veterinary Medicine and Science, Volume 10, Issue 5, September 2024.
Food safety has become a pressing global issue due to growing health concerns. Contaminants can infiltrate the food supply chain, from agricultural production to processing and final consumption. Factors, such as improper agricultural inputs, microbial contamination in production and processing and fraudulent practices, are hindering international food
Abebe Tibebu, Habtamu Tamrat, Adane Bahiru   +2 more
wiley   +1 more source

Photodynamic therapy for cancer: mechanisms, photosensitizers, nanocarriers, and clinical studies

MedComm, Volume 5, Issue 7, July 2024.
We highlight the development and molecular mechanisms underlying the activation of photosensitizers, the challenges of PDT in tumor management, and the advantages of nanocarriers‐based PDT against cancer. Abstract Photodynamic therapy (PDT) is a temporally and spatially precisely controllable, noninvasive, and potentially highly efficient method of ...
Wanchen Zhao, Liqing Wang, Meihong Zhang, Zhiqi Liu, Chuanbin Wu, Xin Pan, Zhengwei Huang, Chao Lu, Guilan Quan   +8 more
wiley   +1 more source

Scientific opinion on marine biotoxins in shellfish in the Republic of Croatia

Food Risk Assess Europe, Volume 2, Issue 2, April 2024.
Summary Marine biotoxins are thermostable, mostly non‐protein molecules with different chemical components. According to solubility, they are divided into water‐soluble (hydrophilic) and fat‐soluble (lipophilic). The regulations of the EU and the Republic of Croatia regarding the maximum limits (ML) in live shellfish cover several groups: azaspiracids (
Brigita Hengl, Jasenka Petrić, Andrea Gross – Bošković, Ivana Ujević, Eddy Listeš, Tanja Bogdanović, Natalija Džafić, Kristina Kvrgić   +7 more
wiley   +1 more source

Elucidation of the fragmentation pathways of azaspiracids, using electrospray ionisation, hydrogen/deuterium exchange, and multiple-stage mass spectrometry

, 2003
Collision-induced dissociation (CID) mass spectra were generated for azaspiracids using electrospray ionisation (ESI), and hydrogen/deuterium (H/D) exchange was used to ascertain the number and type of replaceable hydrogens in the three predominant ...
Sierra, Mónica Díaz, Furey, Ambrose, Lehane, Mary, James, Kevin J., Hamilton, Brett   +4 more
core   +1 more source

Solid phase extraction for removal of matrix effects in lipophilic marine toxin analysis by liquid chromatography-tandem mass spectrometry [PDF]

, 2009
The potential of solid phase extraction (SPE) clean-up has been assessed to reduce matrix effects (signal suppression or enhancement) in the liquid chromatography-tandem mass spectrometry (LC¿MS/MS) analysis of lipophilic marine toxins.
Boer, J., de, Bire, Ronel, Bire, R., de Boer, J., de Boer, J.; id_orcid, Jacob de Boer, Boer, J. de, Mulder, Patrick P. J., McElhinney, A. M., Hess, Philipp, McElhinney, M., Philipp Hess, Gerssen, A., Mairead A. McElhinney, Gerssen, Arjen, Ronel Bire, Arjen Gerssen, Bire, L., de Boer, Jacob, Patrick P. J. Mulder, Mulder, P.P.J., Hess, P., McElhinney, Mairead A.   +22 more
core   +2 more sources

Mediterranean Azadinium dexteroporum (Dinophyceae) produces six novel azaspiracids and azaspiracid-35: a structural study by a multi-platform mass spectrometry approach [PDF]

, 2017
Azadinium dexteroporum is the first species of the genus described from the Mediterranean Sea and it produces different azaspiracids (AZA). The aims of this work were to characterize the toxin profile of the species and gain structural information on ...
Zingone, Adriana, DELL'AVERSANO, CARMELA, CIMINIELLO, PATRIZIA, Soprano, Vittorio, Tillmann, Urban, Percopo, Isabella, Rossi, Rachele, Krock, Bernd   +7 more
core   +1 more source

Synthesis of the C22–C40 Domain of the Azaspiracids

, 2016
An efficient synthesis of the C22–C40 domain of the azaspiracids is described. The synthetic route features a Nozaki–Hiyama–Kishi (NHK) coupling and chelation controlled Mukaiyama aldol reaction to access an acyclic intermediate and a double ...
Yong Chen (109188), Zhigao Zhang (1520167), Antony Akura Okumu (2588599), Nathaniel T. Kenton (2588602), Daniel Adu-Ampratwum (2588605), Craig J. Forsyth (1661140)   +5 more
core   +1 more source

Singlet Oxygen-Mediated Synthesis of Bis-spiroketals Found in Azaspiracids

, 2016
Conversion of a simple furan into the ABCD-ring skeleton of the azaspiracids via a singlet oxygen-initiated one-pot process has been ...
Myron Triantafyllakis (1796422), Maria Tofi (1796419), Georgios Vassilikogiannakis (1566436), Antonia Kouridaki (1796428), Tamsyn Montagnon (1796425)   +4 more
core   +1 more source