Some data may have been extracted from scientific literature using a pipeline that uses large language models (LLMs). Source articles are cited where applicable to help verify the extracted relationships.
Aflatoxin B1 belongs to the furanocoumarins, a subclass of coumarins and derivatives within the organic compounds. It has the formula C17H12O6 and an average molecular weight of 312.27 g/mol. This exogenous compound exists as a solid at room temperature and is classified under the superclass of phenylpropanoids and polyketides. Biologically, it acts as a carcinogenic agent and a human metabolite. Recorded exposure routes include oral, inhalation, and touch. It is found in various sources, including electrical and electronic equipment such as cell phones, capacitors, wires and cables, batteries, and printed circuit boards; food, food processing and cookware, including food packaging and the preparation of vinegar, wine, sparkling wine, wort, and fermentation processes for beer; synthetic textiles, carpets and rugs; soap detergents and cigar cigarettes; lubricants; and medical devices.
Aflatoxin B1 interacts with several protein targets to exert its effects. It must first be activated to its epoxide, aflatoxin B1 2,3-oxide, by the cytochrome P-450 enzymes CYP1A2 and CYP3A4. Its metabolites can intercalate into DNA and alkylate bases through their epoxide moiety, binding particularly to N7-guanine bases; this is thought to cause mutations in the p53 gene and randomly mutate DNA. Additionally, it inhibits activated Ca (2+)-ATPase by binding to a site in the calmodulin-binding domain of Copper-transporting ATPase 1 (ATP7A). Other targets include Glutathione S-transferase A1 and solute carrier family 22 members 1, 2, 7, and 11. Through human organic anion and cation transporters, the compound can enter the liver and kidney or inhibit the uptake of anions and cations, resulting in hepatotoxicity and nephrotoxicity.
Belongs to the class of organic compounds known as difurocoumarocyclopentenones. These are polycyclic aromatic compounds containing a cyclopenten-2-one ring fused to the coumarin moiety of the difurocoumarin skeleton.
mutagen (PMC4701502 , PMC6222310 )?A chemical substance that alters the genetic material of an organism, and increases the frequency of mutations above the naturally-occuring rate
carcinogenic agent (PMC4701502 , PMC4701502 )?A role played by a chemical compound which is known to induce a process of carcinogenesis by corrupting normal cellular pathways, leading to the acquistion of tumoral capabilities.
genotoxin (PMC7828191 )?A chemical substance that alters the genetic material of an organism,directly or indirectly
hepatotoxic agent (PMC8369009 , PMC8166722 )?A role played by a chemical compound exihibiting itself through the ability to induce damage to the liver in animals.
Aflatoxin B1 requires epoxidation to aflatoxin B1 2,3-oxide for activation, which is performed by cytochome P-450 enzymes CYP1A2 and CYP3A4. It produces DNA damage, gene mutation and chromosomal anomalies. Aflatoxins produce singlet oxygen upon their exposure to UV (365-nm) light. Singlet oxygen in turn activates them to mutagens and DNA binding species. Aflatoxin metabolites can intercalate into DNA and alkylate the bases through their epoxide moiety, binding particularity to N7-guanine bases. In addition to randomly mutating DNA, this is thought to cause mutations in the p53 gene, an important gene in preventing cell cycle progression when there are DNA mutations, or signaling apoptosis. Mycotoxins are often able to enter the liver and kidney by human organic anion transporters (hOATs) and human organic cation transporters (hOCTs). They can also inhibit uptake of anions and cations by these transporters, interefering with the secretion of endogenous metabolites, drugs, and xenobiotics including themselves. This results in increased cellular accumulation of toxic compounds causing nephro- and hepatotoxicity. (12, 2, 7, 8)
A broad range of symptoms can be found depending upon dosage, including, vomiting, abdominal pain, hemorrhage, and pulmonary edema. (14)
Treatment
Administration of phonobarbital enhances hepatic transformation activities and also protects against AFB-induced toxicity, carcinogenicity and DNA binding in vivo. In cases of ingestion, feeding large quantities of an adsorbent such as activated charcoal may be used. Antioxidants such as ellagic acid and inducers of some cytochromes P450, such as indole-3-carbinol, may give a protective effect. (1, 14)
Health Effects
Health Effect
Relationship
Direction
Description
Reference
lung cancer
Associated With?
Not Available
A respiratory system cancer that is located in the lung. (DO)
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. There are over 100 types of cancers affect humans. The risk of developing certain cancers can be reduced by not smoking, maintaining a healthy weight, not drinking too much alcohol, eating plenty of vegetables, fruits and whole grains, vaccination against certain infectious diseases, not eating too much processed and red meat and avoiding too much sunlight exposure. Cancer is often treated with some combination of radiation therapy, surgery, chemotherapy and targeted therapy. The majority of cancers, some 90–95% of cases, are due to genetic mutations from environmental and lifestyle factors. The remaining 5–10% are due to inherited genetics.
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. There are over 100 types of cancers affect humans. The risk of developing certain cancers can be reduced by not smoking, maintaining a healthy weight, not drinking too much alcohol, eating plenty of vegetables, fruits and whole grains, vaccination against certain infectious diseases, not eating too much processed and red meat and avoiding too much sunlight exposure. Cancer is often treated with some combination of radiation therapy, surgery, chemotherapy and targeted therapy. The majority of cancers, some 90–95% of cases, are due to genetic mutations from environmental and lifestyle factors. The remaining 5–10% are due to inherited genetics.
A bone remodeling disease that has material basis in impaired mineralization or calcification of bones before epiphyseal closure. It is caused by to deficiency or impaired metabolism of vitamin D, phosphorus or calcium, which results in softening and deformity located in bone. (DO)
A disorder characterized by a reduction in the amount of hemoglobin in 100 ml of blood. Signs and symptoms of anemia may include pallor of the skin and mucous membranes, shortness of breath, palpitations of the heart, soft systolic murmurs, lethargy, and fatigability. (NCI CTCAE)
A glucose metabolism disease characterized by chronic hyperglycaemia with disturbances of carbohydrate, fat and protein metabolism resulting from defects in insulin secretion, insulin action, or both. (DO)
A disorder characterized by a sensation of marked discomfort in various parts of the head, not confined to the area of distribution of any nerve. (NCI CTCAE)
Liver cancer, also known as hepatic cancer and primary hepatic cancer, is cancer that starts in the liver. Cancer which has spread from elsewhere to the liver, known as liver metastasis, is more common than that which starts in the liver. Symptoms of liver cancer may include a lump or pain in the right side below the rib cage, swelling of the abdomen, yellowish skin, easy bruising, weight loss and weakness.("Adult Primary Liver Cancer Treatment (PDQ®)–Patient Version". NCI. 6 July 2016. Archived from the original on 2 October 2016. Retrieved 29 September 2016) The leading cause of liver cancer is cirrhosis due to hepatitis B, hepatitis C or alcohol.(PMID: 25530442) The most common types of liver cancer are hepatocellular carcinoma (HCC), which makes up 80% of cases, and cholangiocarcinoma.(World Cancer Report 2014. World Health Organization. 2014. pp. Chapter 5.6. ISBN 978-9283204299) Globally, as of 2010, liver cancer resulted in 754,000 deaths, up from 460,000 in 1990, making it the third leading cause of cancer death after lung and stomach.(PMID: 23245604) In 2012, it represented 7% of cancer diagnoses in men, the 5th most diagnosed cancer that year.(World Cancer Report 2014. International Agency for Research on Cancer, World Health Organization. 2014. ISBN 978-92-832-0432-9)
Liver cancer, also known as hepatic cancer and primary hepatic cancer, is cancer that starts in the liver. Cancer which has spread from elsewhere to the liver, known as liver metastasis, is more common than that which starts in the liver. Symptoms of liver cancer may include a lump or pain in the right side below the rib cage, swelling of the abdomen, yellowish skin, easy bruising, weight loss and weakness.("Adult Primary Liver Cancer Treatment (PDQ®)–Patient Version". NCI. 6 July 2016. Archived from the original on 2 October 2016. Retrieved 29 September 2016) The leading cause of liver cancer is cirrhosis due to hepatitis B, hepatitis C or alcohol.(PMID: 25530442) The most common types of liver cancer are hepatocellular carcinoma (HCC), which makes up 80% of cases, and cholangiocarcinoma.(World Cancer Report 2014. World Health Organization. 2014. pp. Chapter 5.6. ISBN 978-9283204299) Globally, as of 2010, liver cancer resulted in 754,000 deaths, up from 460,000 in 1990, making it the third leading cause of cancer death after lung and stomach.(PMID: 23245604) In 2012, it represented 7% of cancer diagnoses in men, the 5th most diagnosed cancer that year.(World Cancer Report 2014. International Agency for Research on Cancer, World Health Organization. 2014. ISBN 978-92-832-0432-9)
A disorder characterized by the inability of the heart to pump blood at an adequate volume to meet tissue metabolic requirements, or, the ability to do so only at an elevation in the filling pressure. (NCI CTCAE)
Chronic inflammation is a slow, long-term inflammation lasting for prolonged periods of several months to years. Chronic inflammation can damage healthy cells, tissues, and organs. The main causes of the chronic inflammation includes the untreated causes of acute inflammation, such as an infection or injury, an autoimmune disorder and a long-term exposure to irritants, such as industrial chemicals or polluted air.
Irrigation water?Irrigation water can serve as a vector for synthetic chemical contamination due to its potential exposure to agricultural inputs such as fertilizers, pesticides, and herbicides.
Soil?Soil serves as a critical medium for plant growth and sustains various ecological functions; however, it can become a reservoir for synthetic chemical contamination.
Drinking water?Drinking water can be a medium for synthetic chemical contamination, often originating from various industrial processes and agricultural practices.
Printed circuit boards?Printed circuit boards (PCBs) are essential components in the manufacturing of electronic devices, serving as the backbone for electrical connections and circuit pathways.
Semiconductors?Semiconductors are materials that possess electrical conductivity between that of conductors and insulators, making them essential for various electronic applications, including transistors, diodes, and integrated circuits.
Lubricants?Lubricants are synthetic or petroleum-derived substances used to reduce friction between surfaces in machinery and equipment, enhancing operational efficiency and longevity.
Food packaging?Food packaging often utilizes synthetic chemicals, such as plastics and coatings, to enhance durability, moisture resistance, and shelf life.
Medical devices?Medical devices often incorporate synthetic chemicals in their manufacturing processes, which can contribute to contamination in healthcare settings.
Carpets and Rugs?Carpets and rugs are commonly manufactured using synthetic fibers such as nylon, polyester, and polypropylene, which can be derived from petrochemical sources.
Synthetic textiles?Synthetic textiles are materials derived from man-made fibers, such as polyester, nylon, and acrylic, which are produced through chemical processes involving petrochemicals.
Cell phones?Cell phones contain a variety of synthetic chemicals and materials, including plastics, metals, and glass, which can contribute to environmental contamination.
Capacitors?Capacitors are electronic components that store and release electrical energy, often using dielectric materials that can include synthetic chemicals.
Amplifiers?Amplifiers, commonly used in various electronic devices to enhance signal strength, can be a source of synthetic chemical contamination due to the materials and processes involved in their production and disposal.
Conductors Or Conductive Bodies Characterised By The Conductive Materials?Conductors, or conductive bodies, are materials that allow the flow of electrical current, typically made from metals such as copper, aluminum, or silver.
Electrically Stimulated Smoking Devices?Electrically stimulated smoking devices, commonly known as e-cigarettes or vape pens, utilize electrical components to heat a liquid solution, often containing nicotine, flavorings, and other additives, to produce an aerosol for inhalation.
Electrodes?Electrodes, used in various electrical and electronic applications, can be a source of synthetic chemical contamination due to the materials from which they are constructed and the processes involved in their manufacturing.
Fixed Capacitors And Their Manufacture?Fixed capacitors are passive electronic components used to store and release electrical energy, playing a critical role in various circuits.
Hybrid Capacitors?Hybrid capacitors are energy storage devices that combine the properties of electrolytic and supercapacitors, utilizing a combination of electrochemical principles to achieve higher energy density and power density.
Television Systems?Television systems can be a source of synthetic chemical contamination due to the various materials and components used in their manufacture and operation.
Food Preservation?Food preservation often involves the use of synthetic chemicals, such as preservatives, flavor enhancers, and color additives, to extend shelf life and enhance the sensory qualities of food products.
Preparation Of Vinegar?Vinegar is produced through the fermentation of ethanol by acetic acid bacteria, resulting in a solution that typically contains 4-8% acetic acid.
Preparation Of Wine Or Sparkling Wine?The preparation of wine or sparkling wine involves various stages, including fermentation, aging, and bottling, which can introduce potential sources of synthetic chemical contamination.
Bleaching Agents?Bleaching agents are chemical substances used to whiten or lighten materials, often employed in various cleaning products for their stain removal and disinfecting properties.
Perfumes Within Detergents And Soaps?Perfumes within detergents and soaps are synthetic fragrance compounds added to enhance the sensory experience of cleaning products.
Soap Detergents?Soap detergents are synthetic surfactants designed to enhance the cleaning efficacy of water by reducing surface tension, allowing for better interaction with dirt and grease.
Tobacco Smoke Filters?Tobacco smoke filters are designed to reduce the inhalation of harmful substances in cigarette smoke, including tar and other particulate matter.
Manufacture Preparation Of Tobacco Products?The manufacture and preparation of tobacco products involve various processes that can result in the introduction of synthetic chemicals into the environment.
Nematocides?Nematocides are synthetic chemicals specifically designed to control nematodes, which are microscopic roundworms that can cause significant damage to crops and plants.
Aftersun Products?Aftersun products are designed to soothe and hydrate the skin after sun exposure, often containing various synthetic chemicals such as emollients, preservatives, and fragrances.
Anti Perspirants Or Body Deoderants?Antiperspirants and body deodorants commonly contain synthetic chemicals such as aluminum compounds, parabens, and synthetic fragrances.
Essential Oils Or Perfumes?Essential oils and perfumes are complex mixtures of volatile compounds derived from natural or synthetic sources, commonly used for their aromatic properties.
Footwear?Footwear production often involves the use of various synthetic chemicals, such as adhesives, dyes, and treatments, which can contribute to environmental contamination.
Purses Luggage Hand Bags?Purses, luggage, and handbags are often manufactured using synthetic materials such as polyvinyl chloride (PVC), polyurethane, and various types of nylon.
Surface Finishing Of Leather?Surface finishing of leather often involves the use of various synthetic chemicals, including dyes, resins, and finishing agents.
Yarns Or Threads?Yarns or threads used in textiles can be a source of synthetic chemical contamination due to the production processes and treatments they undergo.
Nitrogenous Fertilisers?Nitrogenous fertilizers are synthetic chemical compounds primarily used to enhance plant growth by supplying essential nitrogen, a crucial nutrient for photosynthesis and protein synthesis.
Nanotechnology?Nanotechnology involves the manipulation of materials at the molecular or atomic level, typically within the range of 1 to 100 nanometers.
Coating Compositions?Coating compositions, which include paints, sealants, and varnishes, are formulated with a variety of synthetic chemicals such as solvents, resins, pigments, and additives.
Leather Tanning?Leather tanning is a process that transforms raw animal hides into durable leather through the application of various chemicals, including chromium salts, aldehydes, and vegetable tannins.
Sludge Treatment?Sludge treatment involves the processing of waste materials generated from wastewater treatment plants, which often contain a variety of organic and inorganic substances.
Water, Wastewater, & Sewage Treatment?Water, wastewater, and sewage treatment processes are critical for managing and mitigating pollutants in water systems.
In order to exert its toxic effects, aflatoxin B1 must first be activated to its epoxide, aflatoxin B1 2,3-oxide, by the cytochome P-450 enzymes CYP1A2 and CYP3A4. (A2972)
In order to exert its toxic effects, aflatoxin B1 must first be activated to its epoxide, aflatoxin B1 2,3-oxide, by the cytochome P-450 enzymes CYP1A2 and CYP3A4. (A2972)
Mycotoxins are often able to enter the liver and kidney by human organic anion transporters (hOATs) and human organic cation transporters (hOCTs). They can also inhibit uptake of anions and cations by these transporters, interefering with the secretion of endogenous metabolites, drugs, and xenobiotics including themselves. This results in increased cellular accumulation of toxic compounds causing nephro- and hepatotoxicity. (A3014)
Mycotoxins are often able to enter the liver and kidney by human organic anion transporters (hOATs) and human organic cation transporters (hOCTs). They can also inhibit uptake of anions and cations by these transporters, interefering with the secretion of endogenous metabolites, drugs, and xenobiotics including themselves. This results in increased cellular accumulation of toxic compounds causing nephro- and hepatotoxicity. (A3014)
Mycotoxins are often able to enter the liver and kidney by human organic anion transporters (hOATs) and human organic cation transporters (hOCTs). They can also inhibit uptake of anions and cations by these transporters, interefering with the secretion of endogenous metabolites, drugs, and xenobiotics including themselves. This results in increased cellular accumulation of toxic compounds causing nephro- and hepatotoxicity. (A3014)
Mycotoxins are often able to enter the liver and kidney by human organic anion transporters (hOATs) and human organic cation transporters (hOCTs). They can also inhibit uptake of anions and cations by these transporters, interefering with the secretion of endogenous metabolites, drugs, and xenobiotics including themselves. This results in increased cellular accumulation of toxic compounds causing nephro- and hepatotoxicity. (A3014)
Mycotoxins are often able to enter the liver and kidney by human organic anion transporters (hOATs) and human organic cation transporters (hOCTs). They can also inhibit uptake of anions and cations by these transporters, interefering with the secretion of endogenous metabolites, drugs, and xenobiotics including themselves. This results in increased cellular accumulation of toxic compounds causing nephro- and hepatotoxicity. (A3014)
Mycotoxins are often able to enter the liver and kidney by human organic anion transporters (hOATs) and human organic cation transporters (hOCTs). They can also inhibit uptake of anions and cations by these transporters, interefering with the secretion of endogenous metabolites, drugs, and xenobiotics including themselves. This results in increased cellular accumulation of toxic compounds causing nephro- and hepatotoxicity. (A3014)
Trost, Barry M.; Toste, F. Dean. Palladium Catalyzed Kinetic and Dynamic Kinetic Asymmetric Transformations of g-Acyloxybutenolides. Enantioselective Total Synthesis of (+)-Aflatoxin B1 and B2a. Journal of the American Chemical Society (2003), 125(10), 30
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International Agency for Research on Cancer (2014). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. - http://monographs.iarc.fr/index.php
