NUTRACEUTICALS MIRACULOUSLY ALTER HUMAN GENOMICS: A REVIEW ON NUTRIGENOMICS

Dr Gunjan Soni

Abstract

Because they have recognisable mendelian subsets, multifactorial polygenic diseases like hypertension, coronary artery disease (CAD), diabetes, and cancer all have varying rates of prevalence and mortality. These rates are dependent on the genetic susceptibility of an individual as well as the environmental factors that contribute to their development. Alterations in diet and lifestyle that take place suddenly have the potential to affect the heredity of variant phenotypes whose expression is contingent on the consumption of nutraceutical or functional food supplements. It is feasible to identify the way in which particular nutraceuticals interact with the genetic code that is possessed by all nucleated cells. There is evidence to suggest that South Asians have a higher risk of developing coronary artery disease (CAD), diabetic mellitus, central obesity, and insulin resistance at a younger age. This elevated risk may be the result of an interplay between genes and the nutritional environment. It would suggest that these populations have a genetic propensity, and there may be an interplay between their internal nutritional state and the elements in their surroundings. A higher consumption of refined starches and sugar leads to an increase in the production of free fatty acids (FFA), as well as an increase in the amount of nuclear factor-kB (NF-kB), a transcriptional factor that regulates the activity of at least 125 genes, the majority of which are pro-inflammatory. Taking in glucose also leads to an increase in the levels of two other pro-inflammatory transcription factors: activating protein-1 (AP-1) and early growth response protein-1 (Egr-1). The activating protein-1 (AP-1) transcription factor is responsible for regulating the transcription of matrix metal-proteinases, while the early growth response protein-1 (Egr-1) transcription factor modulates the transcription of tissue factor and plasminogen activator inhibitor-1. Foods that have been refined and mixed together trigger the activation of the nuclear factor kappa B pathway, which is related with the production of free radicals by mononuclear cells. At least two of the most important transcription factors that contribute to inflammation, NF-kB and AP-1, can be activated by the super oxide anion. A high consumption of linoleic acid, saturated fat, trans fat, refined starches and sugars can lead to an increase in the production of free radicals as well as activation of the nuclear factor kappa B, which in turn causes rapid expression of genes involved in inflammation. It is likely that some nutraceuticals, such as antioxidants, micronutrients, minerals, vitamins, coenzyme Q10, and w-3 fatty acids, could block the synthesis of super oxide and decrease NF-kB in addition to AP-1 and Egr-1, which would then result in the inhibition of phenotypic manifestations. It is common knowledge that genes play a significant role in determining enzymes, receptors, cofactors, and structural components that are involved in the regulation of blood pressure, the metabolism of lipids and lipoproteins, as well as inflammatory and coagulation factors that are involved in the process of determining an individual's risk for vascular diseases and diabetes. Nutraceuticals and slowly digested wild foods that are rich in micronutrients and antioxidants appear to have the potential to mute these phenotypic expressions by targeting small sequence changes known as single nucleotide polymorphisms.

Keywords:

:Single nucleotide polymorphism, chromosome variant, proteome, transcription factor, epigenetics.


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