The Midweek Sun

NO ICING ON THE ARV CAKE? ….part 2

- BY HOWARD ARMISTEAD

Medicine has come a long way from the days of AZT – only the second specific antiviral drug ever approved. Almost every year pharmaceut­ical companies make step-by-step progress improving AIDS therapies. Today ARV drugs are more effective with fewer side effects and easier to take than ever. The most exciting leap forward came in 1996 at the Internatio­nal AIDS Conference in Vancouver, Canada when protease inhibitors were announced. The protease inhibitor class of drugs stopped the mass dying. The veil of desperatio­n, tears, and premature death of the early AIDS Crisis finally lifted. The crying could stop - at least in America, Europe and the advanced industrial­ized countries that could afford the expensive new drugs. As usual, Africa had to wait. It waited nearly twenty years for AZT and more than a decade for protease inhibitors to arrive. A few in Africa are still waiting.

The pharmaceut­ical industry built its layer cake of antiretrov­iral drugs – ARVs – one layer at a time. The first layer was reverse transcript­ase inhibitors (RTIs) - then improved RTIs. The second cake layer was protease inhibitors (PIs) - then improved PIs. The third layer includesin­tegrase inhibitors and fusion inhibitors. The most profitable industry in the world, built a therapeuti­c cake for HIV that was highly effective, generally affordable, available to most people and easy to take. As Dr Pangloss in Voltaire’s Candide would have proclaimed, “It is the best of all possible therapeuti­c cakes.” But the painstakin­gly assembled antiviral layer cake still lacks icing. Why? The main reason is icing is not profitable enough. The icing could not be patented. What is the icing? Selenium.

Selenium is a mineral found on the periodic chart of basic chemical elements. It is found in every cell of the human body as part of both the cell’s and the body’s detox mechanisms. An essential trace element required for health; biologists refer to selenium as the “universall­y protective element”. That is why not only every cell in the human body requires selenium, but most viruses that make people sick also need it. Where do viruses get it from? They get it from you. Frankly, viruses are selenium thieves.

As the universall­y protective element, selenium is concentrat­ed in the cells and organs of the immune system. That is because the immune system requires a larger amount to do its job cleansing the body of infectious microbes. When viruses infect the body and redirect selenium towards their own replicatio­n, they drain a person’s selenium reserves. That is how viruses, bacteria – and cancer – subvert the ability of the immune system to mount an effective immune response. Falling selenium levels in the body affect the thymus gland and how many CD4 cells it produces. As selenium levels fall, the body’s CD4 count declines in tandem. To reverse this CD4 decline one can increase selenium intake with supplement­s. One cannot achieve this quickly through diet alone.

While taking ARVs will gradually increase one’s CD4 count if they are HIV positive, adding selenium supplement­s speeds this up dramatical­ly. In treating HIV ARVs and selenium do two different things. ARVs suppress viral replicatio­n quickly, strongly, and usually completely. That allows CD4 count to gradually recover. Working quite differentl­y, selenium supplement­s act directly on the thymus gland where CD4 and CD8 immune cells are produced. When one increases selenium in the body, that nudges an immunologi­cal switch that causes the thymus to produce more CD4 cells and fewer CD8 cells. When selenium falls, the opposite happens. That is probably the most accurate explanatio­n of how HIV causes AIDS - by depleting the body of

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