Kimberly S. Johnson SOS 313: Social Implications of Medical Issues Human Immunodeficiency Virus Infection and Its Deadly Effects Deanna Swinford March 14‚ 2010 Over the past few decades Human immunodeficiency virus (HIV) infection & Acquired immunodeficiency syndrome (AIDS) prevention strategies has focused on helping high
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of HIV. - HIV only infects a subset of human T cells. - a lot of contributors in identification of receptor.s. -permissive cells-can be infected -non permissive cells- cannot be infected. -macroviroc: also called selzentry is an inhibitor of CCR5‚ a coreceptor for HIV entry. I-clicker: Viral tropism refers to: The fact that the virus an affect certain cell types but not others. B. receptor binding and disease implications: the case of H5N1 -H5N1: avian flu virus: named after
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AP: CHAPTER 43: IMMUNE SYSTEM 1. List the two lines of nonspecific defense mechanisms with examples of each. • External defense‚ which includes the skin and mucous membranes in the body. • Internal defense which includes phagocytic cells and antimicrobial proteins. 2. What is meant by specific defense? Defense mechanisms are said to be specific because depending on which one they focus on one specific part of the body or a specific type of pathogen. 3. Give examples of “barrier defense
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Pathophysiology of the human immunodeficiency virus Nancy R. Calles‚ MSN‚ RN‚ PNP‚ ACRN‚ MPH Desiree Evans‚ MD‚ MPH DeLouis Terlonge‚ MD Objectives 1. 2. 3. 4. 5. Provide an overview of the healthy immune system. Describe the human immunodeficiency virus (HIV). Describe the major components of the HIV life cycle. Identify the various HIV types and subtypes. Discuss HIV’s effects on the immune system. Overview The human immunodeficiency virus (HIV) is a retrovirus belonging to the family of lentiviruses
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PCB Fall 14 Study guide Chapter 11 1) Which T-cells decline in an HIV patient? What is the significant # of those cells for a transition to AIDs? a. Massive reduction in CD4 T cells b. Less than 200 CD4 T cells per ul. c. HIV doesn’t kill patient but cell mediated immunity is compromised and patient can die from infection 2) Know gp 120 and 41 and what they do? What is the precursor polypeptide these are created from? a. One nucleocapsid protein is a protease used to cleave gp41 and gp120
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AIDS is a disease that damages the immune system and interferes with a person’s ability to fight off disease. It is most commonly transmitted sexually‚ but can also be transmitted through infected blood exposure and through birth. Mayoclinic.com says “AIDS is a chronic‚ potentially life-threatening condition” AIDS is caused by the retrovirus HIV‚ HIV targets T-cells which are vital immune system cells and without them it is nearly impossible to fight a common cold let alone a life threatening disease
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What is AIDS? Human immunodeficiency virus (HIV) is a lentivirus (slowly-replicating retrovirus) that causes acquired immunodeficiency syndrome (AIDS)‚ a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive (1). A virus is a piece of genetic material‚ RNA or DNA‚ surrounded by a protein coat. To replicate‚ a virus must infect a cell and direct its cellular machinery to produce new viruses. A virus cannot
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Abstract There have been studies on HIV/AIDS‚ but there is currently no cure for the virus/disease. There is a misconception that AIDS is transmitted‚ but what people don’t know is that the virus HIV is what is transmitted; leading to the disease AIDS. The risk factors‚ major health promoting behaviors and symptoms that can alleviate the hardships that come with the virus/disease‚ can cause stress‚ frustration and conflict managing the illness. The impact of the medical condition on the mental health
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Much of the beauty of the concept of evolution lies in its elegant simplicity. According to Charles Darwin’s grand theory‚ the characteristics of populations or species can change over time if heritable variation exists‚ and if there are differences in reproductive success or survival rates. Therefore‚ in response to environmental pressures‚ the frequency of heritable characteristics will change from one generation to the next‚ and evolution by natural selection will take place. …humans display
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* Proteins were originally thought to be the molecule of heredity because they were more complex than DNA‚ were very present‚ and DNA was only found on chromosomes * * S type → dead mouse * R type → healthy mouse * S type (heat killed) → healthy mouse→ no S cells isolated from mouse * S type (heat killed) plus R → dead mouse * S type → dead mouse * R type → healthy mouse * S type (heat killed) → healthy mouse→ no S cells
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