Results 21 to 30 of about 6,521 (224)

Measurement of Microcystin Activity in Human Plasma Using Immunocapture and Protein Phosphatase Inhibition Assay

Toxins, 2022
Microcystins are toxic chemicals generated by certain freshwater cyanobacteria. These chemicals can accumulate to dangerous levels during harmful algal blooms.
Brady R. Cunningham, Rebekah E. Wharton, Christine Lee, Mike A. Mojica, Logan C. Krajewski, Shirley C. Gordon, Adam M. Schaefer, Rudolph C. Johnson, Elizabeth I. Hamelin   +8 more
doaj   +1 more source

First report of detection of microcystins in farmed mediterranean mussels Mytilus galloprovincialis in Thermaikos gulf in Greece

Journal of Biological Research - Thessaloniki, 2021
Background Microcystins are emerging marine biotoxins, produced by potentially toxic cyanobacteria. Their presence has been reported in aquatic animals in Greek freshwater, while data are few in marine environments.
Maria P. Kalaitzidou, Christina I. Nannou, Dimitra A. Lambropoulou, Konstantinos V. Papageorgiou, Alexandros M. Theodoridis, Vangelis K. Economou, Ioannis A. Giantsis, Panagiotis G. Angelidis, Spyridon K. Kritas, Evanthia J. Petridou   +9 more
doaj   +1 more source

Simultaneous Removal of the Freshwater Bloom-Forming Cyanobacterium Microcystis and Cyanotoxin Microcystins via Combined Use of Algicidal Bacterial Filtrate and the Microcystin-Degrading Enzymatic Agent, MlrA

Microorganisms, 2021
Freshwater cyanobacterial blooms (e.g., Microcystis blooms) constitute a major global environmental problem because of their risks to public health and aquatic ecological systems.
Suqin Wang, Siyu Yang, Jun Zuo, Chenlin Hu, Lirong Song, Nanqin Gan, Peng Chen   +6 more
doaj   +1 more source

Chirality in microcystins [PDF]

Journal of the American Society for Mass Spectrometry, 1994
A new method has been developed to identify the isomers of amino acids by derivatization of the corresponding standards with 1-fluoro-2,4-dinitrophenyl-5-L-alanine amide (Marfey's reagent or FDAA) and analysis of the diastereomeric derivatives by a liquid chromatography-thermospray mass spectrometry technique.
openaire   +2 more sources

A Review of Common Cyanotoxins and Their Effects on Fish

Toxics, 2023
Global warming and human-induced eutrophication drive the occurrence of various cyanotoxins in aquatic environments. These metabolites reveal diversified mechanisms of action, encompassing cyto-, neuro-, hepato-, nephro-, and neurotoxicity, and pose a ...
Halina Falfushynska, Nadiia Kasianchuk, Eduard Siemens, Eliana Henao, Piotr Rzymski   +4 more
doaj   +1 more source

High ecological and human health risks from microcystins in vegetable fields in southern China

Environment International, 2019
Frequent cyanobacterial blooms in the eutrophic waters produce a variety of toxins such as the monocyclic heptapeptide microcystins, greatly harming aquatic ecosystems and human health.
Lei Xiang, Yan-Wen Li, Bai-Lin Liu, Hai-Ming Zhao, Hui Li, Quan-Ying Cai, Ce-Hui Mo, Ming-Hung Wong, Qing X. Li   +8 more
doaj   +1 more source

Microcystin-Detoxifying Recombinant Saccharomyces cerevisiae Expressing the mlrA Gene from Sphingosinicella microcystinivorans B9

Microorganisms, 2023
Contamination of water by microcystins is a global problem. These potent hepatotoxins demand constant monitoring and control methods in potable water. Promising approaches to reduce contamination risks have focused on natural microcystin biodegradation ...
Fernando de Godoi Silva, Daiane Dias Lopes, Ronald E. Hector, Maikon Thiago do Nascimento, Tatiana de Ávila Miguel, Emília Kiyomi Kuroda, Gisele Maria de Andrade de Nóbrega, Ken-Ichi Harada, Elisa Yoko Hirooka   +8 more
doaj   +1 more source

An efficient and affordable laboratory method to produce and sustain high concentrations of microcystins by Microcystis aeruginosa

MethodsX, 2019
Microcystis aeruginosa is a cosmopolitan cyanobacteria that continues to jeopardize freshwater ecosystem services by releasing the hepatotoxin microcystin, which can, in some cases, cause death to aquatic fauna and even humans.
René S. Shahmohamadloo, Xavier Ortiz Almirall, Claire Holeton, Richard Chong-Kit, David G. Poirier, Satyendra P. Bhavsar, Paul K. Sibley   +6 more
doaj   +1 more source

Microcystins-Loaded Aged Nanoplastics Provoke a Metabolic Shift in Human Liver Cells

, 2023
Studies concerning the toxicity of pollutant-loaded nanoplastics (NPs) toward humans are still in their infancy. Here, we evaluated the adsorption of microcystins (MCs) by pristine and aged polystyrene nanoplastics (PSNPs), prepared MCs-loaded aged PSNPS
Muhammad Salam, Yixin He, Ai Shen (7257017), Hong Li (20183), Yongchuan Yang, Muhammad Salam (4377403), Yixin He (466799), Mengzi Liu (16545960), Hong Li, Yanyan Wei (306548), Yongchuan Yang (732593), Yanyan Wei, Mengzi Liu, Ai Shen   +13 more
core   +1 more source

Differential effects of nitrate and ammonium on the growth of algae and microcystin production by nitrogen-fixing Nostoc sp. and non-nitrogen-fixing Microcystis aeruginosa

Water Science and Technology, 2023
Cyanotoxins produced by cyanobacteria are a significant threat to human health. However, their responses to nitrogen (N) supplies could differ between N-fixing and non-N-fixing species, which has been poorly understood.
Ning Yang, Zipeng Li, Zhengyu Wu, Xianhua Liu, Yiyan Zhang, Tao Sun, Xuejun Wang, Yingxin Zhao, Yindong Tong   +8 more
doaj   +1 more source