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Tablets of Truvada, a tenofovir/emtricitabine combination used for HIV pre-exposure prophylaxis. Pre-exposure prophylaxis for HIV prevention, commonly known as PrEP, is the use of antiviral drugs as a strategy for the prevention of HIV/AIDS by people that do not yet have HIV/AIDS. [1]
HIV prevention refers to practices that aim to prevent the spread of the human immunodeficiency virus (HIV). HIV prevention practices may be undertaken by individuals to protect their own health and the health of those in their community, or may be instituted by governments and community-based organizations as public health policies.
ARVs work either by preventing the HIV virus from entering a human host cell, or by preventing its replication after it has already entered. [13] Examples of ARV drugs being tested for prevention include tenofovir , dapivirine (a diarylpyrimidine inhibitor of HIV reverse transcriptase ) and UC-781. [ 14 ]
In parallel work, other compounds that successfully blocked the synthesis of nucleic acids had been proven to be both antibacterial, antiviral, and anticancer agents, the leading work being done at the laboratory of Nobel laureates George H. Hitchings and Gertrude Elion, leading to the development of the antitumor agent 6-mercaptopurine.
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Medicinal plants, also called medicinal herbs, have been discovered and used in traditional medicine practices since prehistoric times. Plants synthesize hundreds of chemical compounds for various functions, including defense and protection against insects , fungi , diseases , against parasites [ 2 ] and herbivorous mammals .
Whether they're boosting your memory, protecting your skin or potentially fighting cancer, these healthy herbs and spices could feel at home in both the kitchen and the bathroom cabinet.
Uses have included reducing pain and swelling, lowering triglyceride and cholesterol levels and fighting viruses and harmful bacteria, due to high levels of Vitamin C. [35] [36] [37] Capsicum frutescens: Chili: Its active ingredient, capsaicine, is the basic of commercial pain-relief ointments in Western medicine.