The Effect of HIV on the Immune System

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Rico, Patrick, Myeong Jin, and Jimmy

description

The Effect of HIV on the Immune System. Rico, Patrick, Myeong Jin, and Jimmy. Background Information. Retrovirus Viruses that copy RNA into DNA HIV is a lentrivirus , a subset of retroviruses. They are slow viruses, meaning there is an interval between infection and the onset of symptoms. - PowerPoint PPT Presentation

Transcript of The Effect of HIV on the Immune System

Page 1: The Effect of HIV on the Immune System

Rico, Patrick, Myeong Jin, and Jimmy

Page 2: The Effect of HIV on the Immune System

Retrovirus◦ Viruses that copy RNA

into DNA HIV is a lentrivirus, a

subset of retroviruses.◦ They are slow viruses,

meaning there is an interval between infection and the onset of symptoms.

HIV can always turn into AIDS, what differs in each patient is the time it takes.

Page 3: The Effect of HIV on the Immune System

The process of changing the viral RNA into a complementary DNA sequence.

The viral DNA then joins with the cell DNA, and integrates the virus into the cell.

The DNA then produces viral proteins, resulting in more HIV cells to infect the rest of the cells in the infected body.

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Using the process of reverse transcriptase, HIV travels through the infected body infecting CD4+T cells.

T cells are responsible for helping B cells in make antibodies or killing foreign cells aside from bacteria.

The HIV infection makes the T cells useless, as well as using them to reproduce and infect other T Cells.

A healthy human has over 1,000 T cells, someone with HIV can have less than 200.

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Arnold, Eddy. Reverse Transcriptase. Digital image. Nature.com. Nature Publishing Group, 8 May 2008. Web. 30 Sept. 2009. <http://www.nature.com/nature/journal/v453/n7192/images/453169b-f1.2.jpg>.

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"HIV Infection: Reverse Transcription." CELLS Alive! Quill Graphics, 2006. Web. 30 Sept. 2009. <http://www.cellsalive.com/hiv2.htm>.

"What are CD4+T Cells?" HIV.com. WebMagic, Inc., 2000. Web. 30 Sept. 2009. <http://www.hiv.com/page5.html>.