In this review, the biological structure of garlic, its active ingredients, especially allicin and its way
of antimicrobial effects on cells evaluated and also the toxic possibility of allicin on diverse cells was
investigated. Various academic papers have been found in reliable literature. It is stated that garlic
includes lots of phytoconstituents with activities against cells. The toxic action of allicin on different
cell lines such as bacteria kinds such as Gram-positive (Staphylococcus aureus, Bacillus subtilis,
Streptococcus pneumoniae) and Gram-negative bacteria (Klebsiella pneumoniae, Helicobacter pylori,
Escherichia coli, Pseudomonas aeruginosa) for all that fungi like Candida albicans and parasites,
virus, glioma and human neuroblastoma cell lines and also oral tongue squamous cell carcinoma,
cancer cell lines which are characterized as malignant (leukemia, colon, gastric, and breast cell
lines) cancer. It has been revealed that, on those cells, allicin has also been demonstrated toxicity
mechanisms on cells like canceling deed of nitric oxide synthase, the peroxidation of lipids, nuclear
factor, kappa B, arranging cell period, modulating the activity of redox precision proteins and
influence cellular signaling.