Status of Trace Elements Level in Blood Samples of Different Age Population of Karachi (Pakistan)

Trace elements play an important role in human health and disease. Trace elements participate in tissue, cellular and subcellular function. These include immunoregulation by both humoral and cellular mechanism, nerve conduction, muscle contraction, membrane potential regulation, and mitochondrial activity, among others (1, 2). Although these trace elements constitute a relatively small amount of the total body tissues, they are essential to many vital processes. Increased interest in the biological aspects of metals has come with the establishing of sophisticated instruments, industrial revolution and exposure of men to metals in an occupational setting and the recognition of toxic states.