Neutralising antibodies are also important in neutralizing the toxic effects of bacterial toxins. Algae can filter high levels of toxins and pollutants. It also reduces the risks of contaminants such as host viruses, toxins and prions. Microorganisms can cause tissue damage by releasing a variety of toxins or destructive enzymes. The bacteria secretes a number of toxins. Doctor Poison is an expert in the use of poisons, toxins, and plagues. Other causes include bacterial infections, certain medications, toxins, and autoimmune disorders. Smoking is known to increase levels of liver enzymes that break down drugs and toxins. Many fungi produce toxins, antibiotics, and other secondary metabolites. Tribal officials were worried about their water sources being contaminated by these deadly toxins. Activated charcoal may also be administered to help absorb any remaining toxins. There is little evidence that vanadium or vanadium compounds are reproductive toxins or teratogens. Diet, toxins, and hormones impact the epigenetic state. Many of these toxins are associated with specific diseases. In CKD numerous uremic toxins accumulate in the blood.