Antiretroviral therapy (ART) is a medical treatment that involves the use of medications to curb the progression of human immunodeficiency virus (HIV) infection or acquired immunodeficiency syndrome (AIDS). This therapeutic approach employs a combination of drugs to suppress the replication of the virus within the body.
ART typically includes a mix of different classes of antiretroviral drugs, which act by inhibiting various stages of the HIV life cycle. These drugs can be categorized into different classes such as nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), protease inhibitors (PIs), integrase inhibitors (INSTIs), and fusion inhibitors.
The primary aim of antiretroviral therapy is to reduce the viral load in the body, which can slow down the progression of HIV infection. By reducing viral replication, ART helps to preserve the immune system's function and prevent the development of opportunistic infections that often arise due to weakened immunity in individuals with HIV/AIDS. This therapy not only improves the quality of life for people living with HIV/AIDS but also increases their life expectancy.
The effectiveness of antiretroviral therapy can be measured by monitoring the viral load and CD4 cell count, which indicates how well the immune system is functioning. However, adherence to treatment is crucial in ensuring the success of antiretroviral therapy, as interrupted or inconsistent usage of medication can diminish its efficacy and increase the risk of developing drug resistance. Additionally, it is important to regularly monitor patients for potential side effects and adjust treatment accordingly.
The word "antiretroviral therapy" has its etymology rooted in the combination of several terms:
1. Anti-: This prefix comes from the Greek word "anti", meaning "against" or "opposite". It is commonly used in English to indicate opposition, counteraction, or negation.
2. Retro-: This prefix is derived from the Latin word "retro", meaning "backward" or "backwards". In the context of "antiretroviral therapy", it refers to retroviruses, a type of RNA virus that can replicate in a backward or reverse manner.
3. Viral: This term originates from the Latin word "virus", meaning "poison" or "a slimy liquid". In modern usage, it is specifically associated with infectious agents that can replicate only inside the living cells of organisms, such as retroviruses (including human immunodeficiency virus, HIV).