Last edited by Dourr
Thursday, July 23, 2020 | History

2 edition of Aflatoxin B ́metabolism by rainbow trout (Salmo gairdneri) found in the catalog.

Aflatoxin B ́metabolism by rainbow trout (Salmo gairdneri)

Grant Louis Schoenhard

Aflatoxin B ́metabolism by rainbow trout (Salmo gairdneri)

by Grant Louis Schoenhard

  • 126 Want to read
  • 8 Currently reading

Published .
Written in English

    Subjects:
  • Aflatoxins.

  • Edition Notes

    Statementby Grant Louis Schoenhard.
    The Physical Object
    Pagination[11], 135 leaves, bound :
    Number of Pages135
    ID Numbers
    Open LibraryOL14240031M

    Perhaps most notable among these is the work that showed CHL to be a potent inhibitor of aflatoxin B 1 (AFB 1)-initiated tumorigenesis in rainbow trout. This was the first evidence that CHL could operate not only as an antimutagen, but also as an anti carcinogen in some experimental protocols. Rainbow Trout (Oncorhynchus mykiss) and Ultra-Low Dose Cancer Studies Article in Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology (2) .

    Aflatoxin B1 is an aflatoxin having a tetrahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-h]chromene skeleton with oxygen functionality at positions 1, 4 and It has a . Occurrence of Aspergillus flavus (A. flavus) in finished commercial broiler feed and among the isolated strains of A. flavus having capacity to produce aflatoxin was investigated in this study. Finished commercial broiler feed samples (n=96) were collected from broiler chicken farms in and around Quetta district. Physical properties i.e. moisture and pH were determined by oven drying and pH.

    Aflatoxin B 1 --effects on rainbow trout liver chromatin. (PMID) Abstract Citations; Related Articles; Data; BioEntities; External Links ' ' Childs EA, ' ' Ayres JC, ' ' Koehler PE Biochemical Pharmacology [01 Nov , 21(22)] Type: Journal Article DOI: / A test diet was formulated to approximate the commercial feed associated with the trout hepatoma epizootic in California. The same diet without the cottonseed meal portion served as the control. A third ration with food grade cottonseed flour substituted for the cottonseed meal was also tested. The trout on the 2 diets with the cottonseed products showed a high incidence of hepatoma.


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Aflatoxin B ́metabolism by rainbow trout (Salmo gairdneri) by Grant Louis Schoenhard Download PDF EPUB FB2

Aflatoxin: Scientific Background, Control, and Implications discusses general problems posed by mycotoxin contamination in foods and feeds. This book is divided into 15 chapters that summarize the discovery, elaboration, chemistry and assay, effects and metabolic fate, processing to ensure their removal or inactivation, and regulatory aspects of Edition: 1.

Abstract: Whole‐body autoradiography in rainbow trout (Oncorhynchus mykiss) after oral and intravenous administration of 3 H‐labelled anatoxin B 1 showed labelling of several extrahepatic tissues, such as the uveal melanin and the vitreous humour of the eyes, the trunk and head kidney, the olfactory rosettes and the pyloric caecae.

Liquid chromatography of extracts of the vitreous humour Cited by: 6. Statistical treatment of mortality during the day period after intraperitoneal (i.p.) injection of the toxins gave LD50 values of mg/kg and mg/kg for aflatoxin B1 and G1, respectively.

Trout given oral doses of aflatoxins or an LD50 i.p. dose regurgitated their stomach by: Inhibition of aflatoxin B1 carcinogenesis in rainbow trout by flavone and indole compounds. Nixon JE, Hendricks JD, Pawlowski NE, Pereira CB, Sinnhuber RO, Bailey GS. Several compounds such as flavonoids, selenium, antioxidants and retinoids reportedly reduce the induction of cancer in experimental animals, and some have been suggested to function by affecting the mixed-function Cited by: The fine structure of hepatocellular neoplasms from aflatoxin B 1 (AFB 1)-initiated rainbow trout was studied by transmission electronusually uniform hepatic nuclei, large nucleoli, abundant, dilated rough-surfaced endoplasmic reticulum, and reduced glycogen storage were common findings in both hepatocellular adenomas and hepatocellular by: Summary.

Three groups, each initially of trout, were fed a diet containing 58 ppb (b = 10 9) aflatoxin B 1 (AFB Aflatoxin B ́metabolism by rainbow trout book or 59 or 273 ppb aflatoxin M 1 (AFM 1) for 16 months. A control group of trout received the basal diet. In the early part of the study, a relatively.

Acute toxicity of aflatoxins B 1 and G 1 in the rainbow trout Mt. Shasta strain rainbow trout rainbow trout Subject Category: Organism Names see more details see more details gave LD 50 of mg per kg and mg per kg for aflatoxin B 1 and G 1, respectively.

Trout given aflatoxins by mouth. Among all known mycotoxins, aflatoxins represent the most investigated, widespread and worrisome source of contamination of foods and feed worldwide. In the early s, soon after the finding of aflatoxin B1 (AFB1) in the feedstuffs of aquacultured rainbow trout that had died in an epizootic of hepatomas, great scientific discoveries were made in several areas by a number of researchers under.

Uptake and elimination of aflatoxins (AFs) by rainbow trout (Oncorhynchus mykiss) during a long-term (21 days) dietary exposure were studied to assess contamination by AFs in aquaculture fish fed AF-containing feed.

The uptake factor (UF) of aflatoxin B1 (AFB1) in muscle ranged from × 10–3 to × 10–3. AFB1 concentrations in liver were – times higher than in muscle. Abstract. A relationship between mycotoxins and hepatocarcinogenesis has been suspected since aflatoxins were first isolated from peanut meal following an outbreak of liver disease among ducklings, turkeys, and pigs during in England.

2 A world wide epizootic occurrence of rainbow trout liver tumors also came to the attention of fish pathologists in I, 16 and nearly all cases could be. Swenson, J.-K. Lin, E. Miller and J. Miller,Aflatoxin B ,3-oxide as a probable inter mediate in the covalent binding of aflatoxins B 1 and B 2 to rat liver DNA and ribosomal RNA in vivo, Can cer Res.

– Google Scholar. Cultured rainbow trout is one of the most important sources of sea foods in Iran. Based on the Food and Agricultural Organization (FAO) report, annual production of rainbow trout reached to aroundtons in in the world of wh tons were produced in Iran as the forth producer of rainbow trout (FAO, ).

Aflatoxins B₁, Q₁ and aflatoxicol, R [subscript o] F, but not B₂ were activated in the presence of NADPH by thex g pellet from rainbow trout (Salmo gairdneri), Mt.

Shasta strain, liver to products lethal to Bacillus subtilis GSY (metB4, hisAl, uvr-1). THE susceptibility of the rainbow trout to liver cell tumours following the administration of aflatoxin is well documented1–3, as is the refractory behaviour of brown trout4.

The different. Effect of Temperature on the Produced Aflatoxins in the Rainbow Trout Feed in West Azerbaijan Province. Journal of Fisheries and Aquatic Science, 3: DOI: /jfas Exposure of rainbow trout, Salmo gairdneri, to the carcinogenic mycotoxin, aflatoxin B1, resulted in a loss of B cell memory, but produced no change in the primary B cell antibody response.

Dietary protein levels and aflatoxin B metabolism in rainbow trout (Salmo gairdneri). Stott WT, Sinnhuber RO. In an attempt to understand dietary protein effects upon aflatoxin B1-induced liver cancer in rainbow trout, the activities of several suspected aflatoxin B1 metabolizing enzyme systems were studied relative to protein intake.

Decontamination of Aflatoxin B1. Select ion of ou r books inde xed in the Boo k Ci tation I ndex. in rainbow trout. Cancer Resear ch. ; 55 (1)   Loveland, P., Wilcox, J., Hendricks, J. & Bailey, G. Comparative metabolism and DNA binding of aflatoxin B 1, aflatoxin M 1, aflatoxicol and aflatoxicol-M 1 in hepatocytes from rainbow trout.

There are 20 known similar compounds called aflatoxins, although the main types of interest in terms of health are B 1, B 2, G 1, and G 2 [1]. Aflatoxin B 1 (AFB 1), besides being the most.

Inhibition of aflatoxin B1 carcinogenesis in rainbow trout by flavone and indole compounds. Carcinogenesis. May; 5 (5)– Shelton DW, Goeger DE, Hendricks JD, Bailey GS. Mechanisms of anti-carcinogenesis: the distribution and metabolism of aflatoxin B1 in rainbow trout fed aroclor Carcinogenesis.

Jul; 7 (7)–UNESCO – EOLSS SAMPLE CHAPTERS TROPICAL BIOLOGY AND CONSERVATION MANAGEMENT - – - Effects of Aflatoxins Contaminating Food on Human Health - Magda Carvajal and Pável Castillo ©Encyclopedia of Life Support Systems (EOLSS) series frequently from the same fungal strain or even in the same head.Carcinogen aflatoxin B1 is located preferentially in internucleosomal deoxyribonucleic acid following exposure in vivo in rainbow trout George S.

Bailey Joseph E. Nixon.