Page last updated: 2024-11-12

aflatoxin m1

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Description

Aflatoxin M1: A 4-hydroxylated metabolite of AFLATOXIN B1, one of the MYCOTOXINS from ASPERGILLUS tainted food. It is associated with LIVER damage and cancer resulting from its P450 activation to the epoxide which alkylates DNA. Toxicity depends on the balance of liver enzymes that activate it (CYTOCHROME P-450) and others that detoxify it (GLUTATHIONE S TRANSFERASE) (Pharmac Ther 50.443 1991). Primates & rat are sensitive while mouse and hamster are tolerant (Canc Res 29.236 1969). [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

aflatoxin M1 : A member of the class of aflatoxins that is aflatoxin B1 in which the hydrogen at position 9a is replaced by a hydroxy group. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Cross-References

ID SourceID
PubMed CID15558498
CHEBI ID78576
MeSH IDM0025324

Synonyms (35)

Synonym
(6ar-cis)-2,3,6a,9a-tetrahydro-9a-hydroxy-4-methoxycyclopenta(c)furo(3',2':4,5)furo(2,3-h)(1)benzopyran-1,11-dione
aflatoxin m1
einecs 229-865-4
4-hydroxyaflatoxin b1
ccris 15
aflatoxin m1, from aspergillus flavus
6795-23-9
C16756
i3020o28i3 ,
unii-i3020o28i3
aflatoxin m
afm1
aflatoxin m1 [mi]
cyclopenta(c)furo(3',2':4,5)furo(2,3-h)(1)benzopyran-1,11-dione, 2,3,6a,9a-tetrahydro-9a-hydroxy-4-methoxy-, (6ar,9ar)-
CHEBI:78576
(6ar,9ar)-9a-hydroxy-4-methoxy-2,3,6a,9a-tetrahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-h]chromene-1,11-dione
cyclopenta[c]furo[3',2':4,5]furo[2,3-h][1]benzopyran-1,11-dione,2,3,6a,9a-tetrahydro-9a-hydroxy-4-methoxy-,(6ar,9ar)-
mfcd00871812
(3r,7r)-3-hydroxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.0^{2,9}.0^{3,7}.0^{13,17}]nonadeca-1,4,9,11,13(17)-pentaene-16,18-dione
MJBWDEQAUQTVKK-IAGOWNOFSA-N
DTXSID40891797
25325-49-9
(3r,7r)-3-hydroxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,4,9,11,13(17)-pentaene-16,18-dione
Q26998369
EX-A5477
rel-(6ar,9ar)-9a-hydroxy-4-methoxy-2,3,6a,9a-tetrahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-h]chromene-1,11-dione
A937070
aflatoxin m1 0.5 microg/ml in acetonitrile
(7r)-3-hydroxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,4,9,11,13(17)-pentaene-16,18-dione
aflatoxinm1
pyrimidine-5-carboxylate
methyl 4-(4-fluorophenyl)-6-isopropyl-2-[n-methyl-n-(methylsulfonyl)amino]
62 - soft cheese
60 - milk (freeze-dried)
AKOS040740684

Research Excerpts

Overview

Alatoxin M1 (AFM1) is a mycotoxin that is commonly found as a milk contaminant. Its presence in milk has been linked to cytotoxicity. It is a carcinogenic compound commonly found in milk in excess of the WHO permissible limit.

ExcerptReferenceRelevance
"Aflatoxin M1 (AFM1) is a carcinogenic hydroxylated metabolite commonly found in milk. "( Rapid and Quantitative Analysis of Aflatoxin M1 From Milk Using Atmospheric Pressure-Matrix Assisted Laser Desorption/Ionization (AP-MALDI)-Triple Quadrupole Selected Reaction Monitoring.
Banerjee, K; Bhattacharya, N; Chawan, S; Dhanshetty, M; Gupta, M; Mahale, V; Moskovets, E; Panchagnula, V, 2022
)
2.44
"Aflatoxin M1 (AFM1) is a mycotoxin that is commonly found as a milk contaminant, and its presence in milk has been linked to cytotoxicity. "( Aflatoxin M1 decreases the expression of genes encoding tight junction proteins and influences the intestinal epithelial integrity.
Chandel, R; Kumar, LK; Onteru, SK; Singh, D; Thumar, M; Verma, SK, 2023
)
3.8
"Aflatoxin M1 (AFM1) is a hydroxylated metabolite of aflatoxin B1 and is found in the milk of cows fed with feed spoilt by Aspergillus species."( Determination of Aflatoxin M1 in Liquid Milk, Cheese, and Selected Milk Proteins by Automated Online Immunoaffinity Cleanup with Liquid Chromatography‒Fluorescence Detection.
Gill, BD; Indyk, HE; Mackay, N; Marley, E; Pazdanska, M; Rhemrev, R; Wood, JE, 2021
)
1.68
"Aflatoxin M1 (AFM1) is a carcinogenic compound commonly found in milk in excess of the WHO permissible limit, especially in developing countries. "( Detection of aflatoxin M1 by fiber cavity attenuated phase shift spectroscopy.
Armaghan Ayaz, RM; Cheema, MI; Daniyal Ghauri, M; Kiraz, A; Saleem, RSZ; Ullah, U; Zajif Hussain, S, 2021
)
2.43
"Aflatoxin M1 (AFM1) is a common mycotoxin in dairy milk, and it is typically concurrently present with other mycotoxins that may represent a threat to food safety. "( Transcriptional and Proteomic Analysis Revealed a Synergistic Effect of Aflatoxin M1 and Ochratoxin A Mycotoxins on the Intestinal Epithelial Integrity of Differentiated Human Caco-2 Cells.
Bao, X; Gao, Y; Li, S; Luo, C; Wang, J; Yang, H; Zhao, S; Zheng, N, 2018
)
2.16
"Aflatoxin M1 (AFM1) is a mycotoxin found in milk as a result of the ingestion of aflatoxin B1 (AFB1) by dairy cattle. "( Occurrence and seasonality of aflatoxin M1 in milk in two different climate zones.
de Almeida Rego, FC; de Santana, EHW; de Toledo, EA; Dos Santos, JS; Ludovico, A; Venâncio, RL, 2019
)
2.25
"Aflatoxin M1 (AFM1) is a mycotoxin produced by Aspergillus fungi and found in contaminated milk, breastfeed and dairy products, being highly toxic and carcinogenic to humans and other mammalian species. "( Surface screening, molecular modeling and in vitro studies on the interactions of aflatoxin M1 and human enzymes acetyl- and butyrylcholinesterase.
Cavalcante, SFA; de Almeida, JSFD; Dolezal, R; França, TCC; Jun, D; Kuca, K; Musilek, K, 2019
)
2.18
"Aflatoxin M1 (AFM1 ) is a main cause of hepatocarcenogenoma in Chinese population. "( Estimation of urinary concentration of aflatoxin M1 in Chinese pregnant women.
Akash, MS; Chen, S; Fang, L; Lei, Y; Liu, Z; Rehman, K; Shi, W, 2013
)
2.1
"Aflatoxin M1 (AFM1) is a mycotoxin produced by numerous Aspergillus species in pre- or post-harvest cereals and milk. "( Potential preventive role of lactic acid bacteria against aflatoxin M₁ immunotoxicity and genotoxicity in mice.
Abbès, S; Ben Salah-Abbès, J; Haous, Z; Jebali, R; Oueslati, R,
)
1.57
"The aflatoxin M1 (AFLAM1) is a mycotoxin that results from the hydroxylation of the aflatoxin B1 (AFLAB1). "( Aflatoxin B₁ and M₁ in milk.
Badiale-Furlong, E; Becker-Algeri, T; Drunkler, D; Scaglioni, PT, 2014
)
0.96
"Aflatoxin M1 (AFM1) is a monohydroxylated metabolite from AFB1 that is secreted in milk and which can be used as a biomarker of AFB1 exposure."( Determination of aflatoxin M1 in breast milk as a biomarker of maternal and infant exposure in Colombia.
Diaz, GJ; Sánchez, MP, 2015
)
1.48
"Aflatoxin M1 (AFM1) is a metabolite of aflatoxin B1 that can be present in milk, and it is a public health concern."( Presence of aflatoxin M1 in raw, reconstituted, and powdered milk samples collected in Algeria.
Arhab, R; Boudra, H; Messaï, A; Morgavi, DP; Redouane-Salah, S, 2015
)
1.52
"Aflatoxin M1 (AFM1) is a hydroxylated metabolite of aflatoxin B1 (AFB1), which has been found in the milk of dairy cattle fed AFB1-contaminated feeds. "( Aflatoxin M1 contamination in raw bulk milk and the presence of aflatoxin B1 in corn supplied to dairy cattle in Japan.
Hiraoka, H; Sugita-Konishi, Y; Sugiyama, K, 2008
)
3.23
"Aflatoxin M1 (AFM1) is a toxic undesirable compound in milk. "( Testing the suitability of different high-performance liquid chromatographic methods to determine aflatoxin M1 in a soft fresh Italian cheese.
Barzaghi, S; Cattaneo, TM; Cremonesi, K; Marinoni, L; Monti, L, 2011
)
2.03
"Aflatoxin M1 (AFM1) is an important mycotoxin frequently found in milk and dairy products. "( Fate of aflatoxin M1 in Iranian white cheese processing.
Aliabadi, FS; Kamkar, A; Karim, G; Khaksar, R, 2008
)
2.22
"Aflatoxin M1 (AFM1) is a metabolite found in the milk of cows that have been fed AFB1-contaminated diet."( In vivo covalent binding of aflatoxin B1 and aflatoxin M1 to liver DNA of rat, mouse and pig.
Jaggi, W; Lüthy, J; Lutz, WK; Sagelsdorff, P; Schlatter, C, 1980
)
1.24
"Aflatoxin M1 (AFM1) is a highly toxic compound found in milk. "( Ability of dairy strains of lactic acid bacteria to bind aflatoxin M1 in a food model.
Ahokas, J; El-Nezami, H; Peltonen, K; Pierides, M; Salminen, S, 2000
)
1.99

Effects

ExcerptReferenceRelevance
"Aflatoxin M1 (AFM1) has been detected in many parts of the world both in raw milk and many dairy products, causing great economic losses and human disease. "( Ability of Lactobacillus rhamnosus GAF01 to remove AFM1 in vitro and to counteract AFM1 immunotoxicity in vivo.
Abbès, S; Jebali, R; Noghabi, KA; Oueslati, R; Salah-Abbès, JB; Sharafi, H,
)
1.57

Treatment

ExcerptReferenceRelevance
"Treatment of aflatoxin M1 (AFM1) with dimethyldioxirane in an anhydrous mixture of CH2-Cl2 and acetone afforded the corresponding aflatoxin M1 8,9-epoxide (AFM1-E) in practically quantitative yield. "( Aflatoxin M1 8,9-epoxide: preparation and mutagenic activity.
Bujons, J; Hsieh, DP; Kado, NY; Messeguer, A,
)
1.94

Toxicity

Aflatoxin B1, aflatoxin M1 and AFB1+AFM1 in the kidney were studied and compared in HEK 293 cells model and CD-1 mice model. An interlaboratory study of 21 public health, state agriculture, and industry laboratories in the United States tested raw commingled bovine milk.

ExcerptReferenceRelevance
" On the basis of M1 aflatoxin content in milk and its toxicity it can be presumed that with the current fodder base for dairy cows no toxic effect of M1 aflatoxin in milk and milk products is to be expected."( [Determination of aflatoxin M1 in milk and proof of its toxicity in chick embryos].
Veselá, D; Veselý, D, 1983
)
0.6
" cent of dried milk in diet, given 69 days to Duckling is without any toxic effect."( [Relay toxicity of aflatoxin M1 in powdered milk. Medium term study on ducklings].
Ferrando, R; Jacquot, L; Palisse-Roussel, M, 1984
)
0.6
" Experiments using human cell line cells either expressing or not expressing human cytochrome P450 enzymes in assays of acute toxicity (MTT assays) have demonstrated a directly toxic potential of AFM1 in the absence of metabolic activation, in contrast to AFB1."( Metabolism and toxicity of aflatoxins M1 and B1 in human-derived in vitro systems.
Eaton, DL; Judah, DJ; Neal, GE; Verma, A, 1998
)
0.3
" Pretreatment with DDB was shown to slightly increase the level of AFM1, the less toxic metabolite."( Effects of dimethyl diphenyl bicarboxylate on the metabolism and hepatotoxicity of aflatoxin B1 in rats.
Li, Y; Lu, H, 2002
)
0.31
" Conversely, the AFM1 epoxidation in human liver microsomes is very limited and studies with human cell line (MCL5), expressing or not expressing cytochrome P450 enzymes, demonstrated a direct toxic potential of AFM1 in absence of metabolic activation."( Aflatoxin M1 absorption and cytotoxicity on human intestinal in vitro model.
Caloni, F; De Angelis, I; Friggè, G; Stammati, A, 2006
)
1.78
"An interlaboratory study of 21 public health, state agriculture, and industry laboratories in the United States tested raw commingled bovine milk containing aflatoxin M1 using the Charm Rapid One Step Assay (ROSA) Safe Level Aflatoxin M1 Quantitative lateral flow method."( Interlaboratory study of the Charm ROSA Safe Level Aflatoxin M1 Quantitative lateral flow test for raw bovine milk.
Douglas, D; Markovsky, B; Salter, R; Saul, SJ; Tess, M,
)
0.58
"Despite the toxicological risks to which humans and animals are exposed due to the transfer of toxic xenobiotic metabolites into milk of domestic animals, studies on the metabolizing mechanisms occurring in ruminant mammary gland are totally lacking."( A clonal cell line (BME-UV1) as a possible model to study bovine mammary epithelial metabolism: metabolism and cytotoxicity of aflatoxin B1.
Altafini, A; Belloli, C; Caruso, M; Mariotti, A; Ormas, P; Zaghini, A; Zizzadoro, C, 2009
)
0.35
"Haemato- and myelotoxicity are adverse effects caused by mycotoxins."( Comparative in vitro and ex-vivo myelotoxicity of aflatoxins B1 and M1 on haematopoietic progenitors (BFU-E, CFU-E, and CFU-GM): species-related susceptibility.
Acerbi, D; Castoldi, AF; Coccini, T; Manzo, L; Roda, E, 2010
)
0.36
" Moreover, by itself, this bacterium was not toxic and could potentially be used as an additive in dairy products and in biotechnology for mycotoxin detoxification."( Ability of Lactobacillus rhamnosus GAF01 to remove AFM1 in vitro and to counteract AFM1 immunotoxicity in vivo.
Abbès, S; Jebali, R; Noghabi, KA; Oueslati, R; Salah-Abbès, JB; Sharafi, H,
)
0.13
" The concurrent administration of LP with AFM1 strongly reduced the adverse effects of AFM1 on each parameter."( Potential preventive role of lactic acid bacteria against aflatoxin M₁ immunotoxicity and genotoxicity in mice.
Abbès, S; Ben Salah-Abbès, J; Haous, Z; Jebali, R; Oueslati, R,
)
0.13
" In comparison, AFB1 was found to be more toxic than AFM1 on both UC and DC."( Aflatoxin B1 and aflatoxin M1 induced cytotoxicity and DNA damage in differentiated and undifferentiated Caco-2 cells.
Li, FD; Li, SL; Liu, J; Wang, JQ; Zhang, J; Zheng, N, 2015
)
0.76
" However, the adverse effects of these toxins and protein fibrils were negated in the presence of curcumin."( Curcumin Protects β-Lactoglobulin Fibril Formation and Fibril-Induced Neurotoxicity in PC12 Cells.
Khodagholi, F; Mazaheri, M; Moosavi-Movahedi, AA; Saboury, AA; Shaerzadeh, F; Sheibani, N, 2015
)
0.42
"The toxic effects and potential mechanisms of aflatoxin B1 (AFB1), aflatoxin M1 (AFM1), and AFB1+AFM1 in the kidney were studied and compared in HEK 293 cells model and CD-1 mice model."( The Toxic Effects of Aflatoxin B1 and Aflatoxin M1 on Kidney through Regulating L-Proline and Downstream Apoptosis.
Li, H; Wang, J; Xing, L; Zhang, M; Zheng, N, 2018
)
0.99
" The phenotypic results on liver weight and serum indicators, such as total bilirubin and glutamyltransferase, showed that the combined toxins had more serious adverse effects than an individual one, indicating that the combined AFM1 and OTA displayed synergistic effects on liver damage."( Metabolomic Analysis Reveals the Mechanisms of Hepatotoxicity Induced by Aflatoxin M1 and Ochratoxin A.
Gao, YN; Wang, JQ; Wu, CQ; Zheng, N, 2022
)
0.95
" The potential contribution of microglia to the toxic effects of aflatoxins was assessed in transwell co-culture experiments involving microglia, neurons, astrocytes, oligodendrocytes or neural stem/precursor cells."( Gasdermin D-mediated microglial pyroptosis exacerbates neurotoxicity of aflatoxins B1 and M1 in mouse primary microglia and neuronal cultures.
Guo, L; Jiang, W; Li, L; Liu, Q; Ouyang, Z; Su, D; Wei, Y; Xiao, C; Yang, C; Yuan, Q; Zhang, J; Zhou, T, 2022
)
0.72
" To fill this knowledge gap, transcriptomic, proteomic, and microRNA (miRNA)-sequencing approaches were used to investigate the toxic mechanisms underpinning combined AFB1 and AFM1 actions in vitro."( Multi-Omics Reveal Additive Cytotoxicity Effects of Aflatoxin B1 and Aflatoxin M1 toward Intestinal NCM460 Cells.
Gao, YN; Liu, HM; Wang, JQ; Yang, X; Zheng, N, 2022
)
0.96

Bioavailability

ExcerptReferenceRelevance
" The aim of this study was to investigate the effects of low ruminal pH on the bioavailability of 4 major mycotoxins [i."( Bioavailability of aflatoxin B
Boudra, H; Chaucheyras-Durand, F; Martin, C; Morgavi, DP; Pantaya, D; Silberberg, M; Wiryawan, KG, 2016
)
0.43

Dosage Studied

ExcerptRelevanceReference
" Animals were grouped in pairs for one of four treatments: 1) control, 2) oral dosing with sodium phenobarbital for 5 days, 3) dosing with sodium phenobarbital followed by oral dosing with aflatoxin B1, and 4) oral dosing with aflatoxin B1 for 5 days."( Some effects of phenobarbital dosing of dairy cattle on aflatoxin M1 and fat in milk.
Barnhart, HM; McGrew, PB; Mertens, DR; Wyatt, RD, 1982
)
0.51
" This inhibition of AFM1 excretion was not seen in animals receiving oltipraz by gavage 24 h prior to dosing with AFB1."( Inhibition of aflatoxin Ml excretion in rat urine during dietary intervention with oltipraz.
Groopman, JD; Kensler, TW; Musser, SM; Scholl, P, 1996
)
0.29
" Rats dosed with tritiated AFB1 excreted in their urine tritiated AFM1, among other AF metabolites, as indicated by chemical derivative confirmation and cochromatography with authentic AFM1 and agreement of radioactivity and fluorescence quantitation."( Use of an improved method for analysis of urinary aflatoxin M1 in a survey of mainland China and Taiwan.
Campbell, TC; Chen, J; Cheng, Z; Pan, W; Root, M, 1997
)
0.55
" Sequestering agents were top-dressed on the total mixed ration (TMR) daily in each period, and AFB1 was dosed orally in gelatin capsules before the TMR was fed on d 21 to 25."( Effects of 3 sequestering agents on milk aflatoxin M1 concentration and the performance and immune status of dairy cows fed diets artificially contaminated with aflatoxin B1.
Adesogan, AT; Arriola, KG; Driver, JP; Jiang, Y; Ogunade, IM; Staples, CR, 2016
)
0.7
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Roles (3)

RoleDescription
mammalian metaboliteAny animal metabolite produced during a metabolic reaction in mammals.
human xenobiotic metaboliteAny human metabolite produced by metabolism of a xenobiotic compound in humans.
Aspergillus metaboliteAny fungal metabolite produced during a metabolic reaction in the mould, Aspergillus.
[role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Drug Classes (4)

ClassDescription
aflatoxinAny of a group of related and highly toxic secondary metabolites (mycotoxins) whose main structural feature is a fused coumarin-bis(dihydrofuran) ring system and which are produced by strains of the moulds Aspergillus flavus or A. parasiticus, together with further metabolites of these mycotoxins
aromatic etherAny ether in which the oxygen is attached to at least one aryl substituent.
tertiary alcoholA tertiary alcohol is a compound in which a hydroxy group, -OH, is attached to a saturated carbon atom which has three other carbon atoms attached to it.
aromatic ketoneA ketone in which the carbonyl group is attached to an aromatic ring.
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Pathways (4)

PathwayProteinsCompounds
Metabolism14961108
Biological oxidations150276
Aflatoxin activation and detoxification1821
Aflatoxin B1 metabolism07

Research

Studies (569)

TimeframeStudies, This Drug (%)All Drugs %
pre-199086 (15.11)18.7374
1990's45 (7.91)18.2507
2000's110 (19.33)29.6817
2010's225 (39.54)24.3611
2020's103 (18.10)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials7 (1.11%)5.53%
Reviews24 (3.82%)6.00%
Case Studies1 (0.16%)4.05%
Observational0 (0.00%)0.25%
Other596 (94.90%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]