PQQ, a new vitamin as a preventive against heart attack and strokes

Pyrroloquinoline quinone (PQQ), also known as methoxatin, is a new coenzyme discovered initially in methanobacteria. This small molecule has attracted the attention of many synthetic organic chemists. It is widely distributed in nature and has been found in common fruits, vegetables, milk and egg. Its deficiency in mice causes their slow development and results in fragile blood vessels. It is being considered as a new vitamin of the vitamin-B complex group and may have use in preventing heart attacks and strokes.