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Showing 1 to 12 of 210 entries
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Subchronic toxicity of Nile tilapia with different exposure routes to .

Veterinary world

Abdel-Latif HMR, Khashaba AMA.
PMID: 28919690
Vet World. 2017 Aug;10(8):955-963. doi: 10.14202/vetworld.2017.955-963. Epub 2017 Aug 21.

BACKGROUND: Toxic cyanobacterial blooms (AIM: Three-week subchronic exposure experiment was carried out on Nile tilapia, to determine their effects on fish behavior, tissues, liver functions, antioxidant enzymes, and lipid peroxidation.MATERIALS AND METHODS: Fish were exposed to four main treatments;...

Paralytic Shellfish Toxins and Cyanotoxins in the Mediterranean: New Data from Sardinia and Sicily (Italy).

Microorganisms

Lugliè A, Giacobbe MG, Riccardi E, Bruno M, Pigozzi S, Mariani MA, Satta CT, Stacca D, Bazzoni AM, Caddeo T, Farina P, Padedda BM, Pulina S, Sechi N, Milandri A.
PMID: 29144421
Microorganisms. 2017 Nov 16;5(4). doi: 10.3390/microorganisms5040072.

Harmful algal blooms represent a severe issue worldwide. They affect ecosystem functions and related services and goods, with consequences on human health and socio-economic activities. This study reports new data on paralytic shellfish toxins (PSTs) from Sardinia and Sicily...

Changes in gene expression, cell physiology and toxicity of the harmful cyanobacterium Microcystis aeruginosa at elevated CO2.

Frontiers in microbiology

Sandrini G, Cunsolo S, Schuurmans JM, Matthijs HC, Huisman J.
PMID: 25999931
Front Microbiol. 2015 May 05;6:401. doi: 10.3389/fmicb.2015.00401. eCollection 2015.

Rising CO2 concentrations may have large effects on aquatic microorganisms. In this study, we investigated how elevated pCO2 affects the harmful freshwater cyanobacterium Microcystis aeruginosa. This species is capable of producing dense blooms and hepatotoxins called microcystins. Strain PCC...

Recycling foam countercurrent chromatography.

Analytical chemistry

Oka H, Iwaya M, Harada K, Suzuki M, Ito Y.
PMID: 10763244
Anal Chem. 2000 Apr 01;72(7):1490-4. doi: 10.1021/ac990974d.

A new sample injection method for foam countercurrent chromatography (CCC), named the "recycle injection system", has been developed. In this system, the effluent from the liquid outlet is directly returned into the column through the sample feed line so...

Covalent glutathione conjugation to cyanobacterial hepatotoxin microcystin LR by F344 rat cytosolic and microsomal glutathione S-transferases.

Environmental toxicology and pharmacology

Takenaka S.
PMID: 11292575
Environ Toxicol Pharmacol. 2001 Mar;9(4):135-139. doi: 10.1016/s1382-6689(00)00049-1.

Most investigators report that microcystins (MCs) bound covalently to SH compounds, such as L-cysteine and reduced glutathione (GSH). However, their studies were based on a high pH condition. In the present study, we investigated the reaction between microcystin LR...

Generation and characterization of polyclonal antibodies against microcystins-Application to immunoassays and immunoaffinity sample preparation prior to analysis by liquid chromatography and UV detection.

Talanta

Mhadhbi H, Ben-Rejeb S, Cléroux C, Martel A, Delahaut P.
PMID: 18970757
Talanta. 2006 Sep 15;70(2):225-35. doi: 10.1016/j.talanta.2006.02.029. Epub 2006 Mar 31.

Polyclonal antibodies against microcystin-LR (MC-LR), a cyclic heptapeptide toxin, were generated in rabbits using MC-LR-BSA. An enzyme-linked immunosorbent assay (ELISA) was developed for the characterization of the antibodies and their potential use for analytical purposes. The concentration of MC-LR...

Contribution of hot spring cyanobacteria to the mysterious deaths of Lesser Flamingos at Lake Bogoria, Kenya.

FEMS microbiology ecology

Krienitz L, Ballot A, Kotut K, Wiegand C, Pütz S, Metcalf JS, Codd GA, Pflugmacher S.
PMID: 19719674
FEMS Microbiol Ecol. 2003 Mar 01;43(2):141-8. doi: 10.1111/j.1574-6941.2003.tb01053.x.

Cyanobacterial mats at hot springs on the shore of the alkaline Lake Bogoria, Kenya, were investigated regarding species community and cyanobacterial toxin content. The hepatotoxins microcystin-LR, -RR, -LF and -YR, and the neurotoxin anatoxin-a were present. The mats were...

Facile synthesis and application of mesoporous silica coated magnetic carbon nanotubes.

Chemical communications (Cambridge, England)

Lu X, Liu H, Deng C, Yan X.
PMID: 21107468
Chem Commun (Camb). 2011 Jan 28;47(4):1210-2. doi: 10.1039/c0cc04615a. Epub 2010 Nov 25.

Mesoporous silica coated magnetic carbon nanotubes were prepared as a novel hybrid material for the first time, and the as-synthesized composites were successfully applied as absorbents for the fast removal of microcystins.

Biodegradation of microcystin-RR by Bacillus flexus isolated from a Saudi freshwater lake.

Saudi journal of biological sciences

Alamri SA.
PMID: 23961204
Saudi J Biol Sci. 2012 Oct;19(4):435-40. doi: 10.1016/j.sjbs.2012.06.006. Epub 2012 Jul 04.

A bacterium capable of degrading microcystin-RR (MC-RR) was isolated from a Saudi eutrophic lake which was previously reported to have microcystin-producing cyanobacteria. Based on the analysis of the 16S rRNA gene sequence, the isolated strain SSZ01, most likely belong...

Freshwater cyanobacterium Microcystis aeruginosa (UTEX 2385) induced DNA damage in vivo and in vitro.

Environmental toxicology and pharmacology

Lakshmana Rao PV, Bhattacharya R, Parida MM, Jana AM, Bhaskar AS.
PMID: 21781844
Environ Toxicol Pharmacol. 1998 Jan;5(1):1-6. doi: 10.1016/s1382-6689(97)00022-7.

Microcystins are a family of potent hepatotoxins and liver tumor promoters produced by several genera of cyanobacteria including Microcystis, Nodularia, Anabena, Nostoc, etc. They are chemically very stable and represent a public health threat when they occur in water...

Oxidative stress response after prolonged exposure of domestic rabbit to a lower dosage of extracted microcystins.

Environmental toxicology and pharmacology

Zhao Y, Xie P, Zhang X.
PMID: 21783939
Environ Toxicol Pharmacol. 2009 Mar;27(2):195-9. doi: 10.1016/j.etap.2008.10.005. Epub 2008 Oct 28.

Oxidative stress response after prolonged exposure to a low dose of microcystins (MCs) was studied in liver, kidney and brain of domestic rabbits. Rabbits were treated with extracted MCs (mainly MC-LR and MC-RR) at a dose of 2 MC-LReq....

Switching toxin production on and off: intermittent microcystin synthesis in a Microcystis bloom.

Environmental microbiology reports

Wood SA, Rueckert A, Hamilton DP, Cary SC, Dietrich DR.
PMID: 23761240
Environ Microbiol Rep. 2011 Feb;3(1):118-24. doi: 10.1111/j.1758-2229.2010.00196.x.

Toxic cyanobacterial blooms are increasing in prevalence. Microcystins are the most commonly produced cyanotoxin. Despite extensive research the variables regulating microcystin production remain unclear. Using a RT-QPCR assay that allowed the precise measurement of mcyE transcriptional gene expression and...

Showing 1 to 12 of 210 entries