Lupus Erythematosus Overview
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Questions and Answers

Which type of lupus is characterized by involvement of multiple body systems including cardiovascular and renal systems?

  • Drug-induced lupus
  • Cutaneous lupus
  • Neonatal lupus
  • Systemic lupus erythematosus (correct)
  • What is the primary cause of drug-induced lupus?

  • Genetic mutation
  • Certain prescription medications (correct)
  • Infection
  • Environmental factors
  • What type of lupus is limited to the skin and may manifest as discoid lupus?

  • Systemic lupus erythematosus
  • Neonatal lupus
  • Drug-induced lupus
  • Cutaneous lupus (correct)
  • Which of the following statements best describes systemic lupus erythematosus?

    <p>It can cause remissions and exacerbations. (C)</p> Signup and view all the answers

    At what stage of life is systemic lupus erythematosus most commonly diagnosed?

    <p>Teenage and early adulthood (B)</p> Signup and view all the answers

    What underlies the production of autoantibodies in lupus erythematosus?

    <p>B cell hyperreactivity due to T-cell dysfunction (C)</p> Signup and view all the answers

    What is a common site for immune complex deposition in systemic lupus erythematosus?

    <p>Kidneys (C)</p> Signup and view all the answers

    Which of the following conditions is characterized by passive transfer of autoantibodies from mother to fetus?

    <p>Neonatal lupus (C)</p> Signup and view all the answers

    What may result from a defect in apoptosis in individuals with lupus erythematosus?

    <p>Decreased immune tolerance (B)</p> Signup and view all the answers

    Which subtype of cutaneous lupus erythematosus may manifest as discoid lupus erythematosus?

    <p>Chronic cutaneous lupus erythematosus (D)</p> Signup and view all the answers

    What dysfunction is observed in T cells of individuals with systemic lupus erythematosus?

    <p>Defects in signaling and effector function (B)</p> Signup and view all the answers

    In the context of autoantibody reactions in systemic lupus erythematosus, what is the consequence of immune complex deposition?

    <p>Triggering of an inflammatory response (B)</p> Signup and view all the answers

    What is a noted challenge in diagnosing drug-induced lupus?

    <p>It may develop quickly within weeks (C)</p> Signup and view all the answers

    Which environmental factor is believed to activate the pathologic mechanisms of systemic lupus erythematosus?

    <p>Viral infections (C)</p> Signup and view all the answers

    What is the reported prevalence of systemic lupus erythematosus in African American women compared to white populations?

    <p>Higher rates (D)</p> Signup and view all the answers

    Which class of drugs is most commonly implicated in drug-induced lupus?

    <p>Anti-TNF medications (D)</p> Signup and view all the answers

    What effect do estrogens have on individuals with systemic lupus erythematosus?

    <p>Enhance antibody responses (B)</p> Signup and view all the answers

    What is the risk factor for the development of systemic lupus erythematosus among siblings of affected individuals?

    <p>29 times higher (D)</p> Signup and view all the answers

    What role do androgens play in women with systemic lupus erythematosus?

    <p>Inhibit antibody responses (C)</p> Signup and view all the answers

    Which demographic is most commonly affected by systemic lupus erythematosus?

    <p>Women of childbearing age (C)</p> Signup and view all the answers

    What is a significant finding in twin studies related to systemic lupus erythematosus?

    <p>Strong familial patterns (D)</p> Signup and view all the answers

    Which of the following actions can help prevent disease flare-ups?

    <p>Receiving influenza and pneumococcal vaccines (B)</p> Signup and view all the answers

    What lifestyle change is NOT recommended to prevent flare-ups?

    <p>Taking medications that increase sun sensitivity (A)</p> Signup and view all the answers

    Which strategy is effective in avoiding potential disease triggers?

    <p>Vaccinating against influenza (B)</p> Signup and view all the answers

    Which of the following is NOT beneficial for avoiding flare-ups?

    <p>Excessive sun exposure (B)</p> Signup and view all the answers

    To minimize disease flare-ups, patients should consider:

    <p>Eliminating stressful situations (C)</p> Signup and view all the answers

    Flashcards

    Lupus Erythematosus (LE)

    An autoimmune disease causing inflammation in various body tissues.

    Systemic Lupus Erythematosus (SLE)

    The most common type of lupus, affecting multiple body systems.

    Autoantibodies

    Abnormal antibodies that target the body's own tissues in lupus.

    Systemic Lupus Symptoms

    Can include cardiovascular, nervous, blood, skin, kidney, lung, and musculoskeletal issues.

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    Cutaneous Lupus

    Lupus limited to the skin, can be acute, subacute, or chronic.

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    What causes autoantibody production in LE?

    Hyperreactivity of B cells, driven by dysfunctional T-cell activity, leads to the production of autoantibodies against the body's own tissues.

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    What is the role of apoptosis in LE?

    A defect in apoptosis, the process of programmed cell death, is thought to contribute to autoantibody development by increasing cell death and disrupting immune tolerance.

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    What effect do autoantibodies have on tissues in LE?

    Autoantibodies bind to their corresponding antigens, forming immune complexes that deposit in connective tissues, triggering inflammation and local damage.

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    Why is SLE more severe than other forms of lupus?

    SLE affects multiple organ systems, including the kidneys, musculoskeletal system, brain, heart, spleen, lung, GI tract, skin, and peritoneum, leading to widespread inflammation and damage.

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    What are the subtypes of cutaneous lupus erythematosus (CLE)?

    CLE is a lupus type affecting only the skin. It has three subtypes: acute CLE (ACLE), subacute CLE (SCLE), and chronic CLE (CCLE) or discoid lupus erythematosus (DLE).

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    What is the pathophysiology of drug-induced lupus (DIL)?

    The exact cause of DIL is unknown, but it's believed to be triggered by certain medications, potentially through different mechanisms of autoimmunity development.

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    How is neonatal lupus (NL) transmitted?

    NL is caused by the passive transfer of autoantibodies, anti-RO/SSA and/or anti-La/SSB, from mother to fetus via the placenta.

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    What are the key factors contributing to NL?

    NL is a combination of maternal autoantibodies passed via the placenta, fetal genetic factors, and environmental stressors.

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    SLE's Genetic Link

    Twin studies and family history suggest that SLE has a genetic component. Certain HLA genes are more common in people with SLE. This means you might be born with a higher chance of developing the disease.

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    SLE Triggers

    While you might be born with a genetic susceptibility, environmental factors can trigger SLE. These include viruses, bacteria, chemicals, drugs, and even sunlight!

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    Hormones and SLE

    Sex hormones play a role in SLE. Women with SLE have lower levels of certain male hormones that typically suppress the immune system. Estrogen, on the other hand, can amplify immune responses, potentially contributing to SLE.

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    SLE Prevalence

    SLE is more common in women, affecting 90% of cases. It's also more prevalent in certain ethnic groups like Asian Americans, African Americans, and Hispanic Americans.

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    Sibling Risk for SLE

    If one sibling has SLE, the risk for another sibling developing the disease is much higher compared to the general population.

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    Autoimmune Conditions and SLE

    Having another autoimmune condition, like rheumatoid arthritis, increases your risk for developing SLE.

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    Drug-Induced Lupus (DIL)

    Certain medications can trigger lupus-like symptoms. This is called drug-induced lupus, and it usually resolves when the medication is stopped.

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    Common DIL Medications

    Some common medications associated with DIL include procainamide, hydralazine, isoniazid, and certain anti-TNF drugs.

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    Lupus Flare-Ups

    Episodes of worsening lupus symptoms, often triggered by various factors.

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    Sunlight's Role in Lupus

    Excessive sun exposure can worsen lupus symptoms, as it can trigger inflammation.

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    Stress and Lupus

    Stress can contribute to lupus flare-ups, highlighting the connection between mental and physical health.

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    Sleep and Lupus

    Getting enough sleep is crucial for lupus management, as lack of sleep can worsen symptoms.

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    Vaccinations for Lupus Patients

    Influenza and pneumococcal vaccines are recommended for lupus patients to reduce the risk of infections that can worsen symptoms.

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    Study Notes

    Lupus Erythematosus (LE)

    • Lupus erythematosus (LE) is a generalized autoimmune disease causing acute and chronic inflammation in various body tissues.
    • Individuals with LE produce abnormal antibodies (autoantibodies) that target their own body tissues.

    Types of Lupus

    • Systemic Lupus: Affects one or more systems, including cardiovascular, central nervous, hematologic, integumentary, kidneys, lungs, and musculoskeletal.
    • Cutaneous Lupus: Limited to the skin; can be acute, subacute, or chronic (discoid lupus).
    • Drug-Induced Lupus: Similar presentation to SLE, caused by specific medications.
    • Neonatal Lupus: Rare; affects infants of mothers with anti-RO/SSA and anti-La/SSB antibodies.

    Systemic Lupus Erythematosus (SLE)

    • SLE is the most common type of LE.
    • It's a chronic, inflammatory, connective tissue disease of unknown origin.
    • Affects nearly all body systems.
    • Characterized by remissions and exacerbations (periods of improvement and worsening).
    • Can range from mild to life-threatening.
    • Manifestations vary widely, including joint, skin, brain, lung, kidney, and blood vessel involvement.
    • Thought to result from damage caused by immune complexes depositing in connective tissues.
    • Majority of cases diagnosed in teens and early adulthood.

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    Description

    Explore the complexities of Lupus Erythematosus, an autoimmune disease affecting multiple body systems. Understand the types of lupus, including Systemic Lupus Erythematosus and Cutaneous Lupus, alongside their symptoms and effects. This quiz provides an in-depth look at this chronic condition.

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