Te sɛ dwuma a nnuru a ekum ɔyare mmoawa di no, enzyme ahorow a ɛko tia ɔyare mmoawa a ebetumi abɔ nkwammoaa ho ban afi oxidative stress ho wɔ hɔ. Sɛ nhwɛso no, wodi kan dan peroxide a ɛba bere a oxidative phosphorylation no yɛ no hydrogen peroxide na afei wɔtew so ma ɛyɛ nsu. Saa detoxification nhyehyɛe yi yɛ nea efi enzyme ahorow pii a ɛyɛ adwuma bom no mu ba. Anamɔn a edi kan ne superoxide a wɔdan no hydrogen peroxide wɔ superoxide dismutase a ɛma ɛyɛ kɛse no ase, na peroxidase ahorow pii di akyi. Ɛyɛ a na ɛyɛ adwuma sɛ wobeyi hydrogen peroxide afi hɔ. Sɛnea ɛsɛ sɛ nnuru a ɛma nipadua no yɛ adwuma a ɛko tia ɔyare mmoawa no yɛ biako na wɔyɛ biako wɔ wɔn ho wɔn ho wɔ antioxidant nhyehyɛe no mu no, saa ara na ɛsɛ sɛ saa enzyme ahorow yi nso yɛ biako wɔ ɔkwan a wɔfa so bɔ nneɛma a ɛko tia ɔyare mmoawa ho ban no mu, na wontumi nyɛ dwuma bi nkutoo. Eyi nso fi antioxidant bi a enni hɔ. Wohuu enzymes wɔ mprako a wɔadan wɔn awosu mu no mu.
Superoxide dismutase, catalase ne peroxidoreductase .
Superoxide dismutase yɛ enzyme ahorow a ɛne superoxide anion ahorow a ɛporɔw no wɔ abusuabɔ kɛse ma ɛyɛ oxygen ne hydrogen peroxide.
Catalase yɛ enzyme a ɛde iron anaa manganese di dwuma sɛ cofactor a ɛma hydrogen peroxide a ɛporɔw kɔ nsu ne oxygen mu no yɛ kɛse. Wɔn wɔ eukaryotic nkwammoaa dodow no ara peroxisomes mu.
Peroxiredoxins yɛ peroxidases kuw bi a ebetumi ama hydrogen peroxide, organic peroxides ne peroxynitrite anions so atew. Wobetumi akyekyɛ mu abiɛsa: 2-cysteine peroxidase reductase a wɔtaa yɛ, atypical 2-cysteine peroxidase reductase ne 1-cysteine peroxidase reductase.
Thioredoxin ne glutathione nhyehyɛe .
Thioredoxin nhyehyɛe no ka kilodalton 12 thioredoxin ne thioredoxin reductase a ɛka ho no ho.
Glutathione nhyehyɛe no bi ne glutathione, glutathione reductase, glutathione peroxidase ne glutathione S-transferase. Saa antioxidant enzyme nhyehyɛe yi wɔ afifide, mmoa ne mmoawa nketenkete mu.
