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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
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Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
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Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease...
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Chronic inflammation is a prolonged, dysregulated immune response that persists for weeks to years when the inciting stimulus is difficult to eradicate or when self‑antigens drive ongoing reactivity. Morphologically, it is defined by mononuclear cell infiltration, progressive tissue destruction, and concurrent attempts at healing via angiogenesis and fibrosis. Compared with acute inflammation, edema is less prominent while cellular infiltration predominates; triggers include persistent...
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Interstitial Pneumonia with Autoimmune Features from the Rheumatologists' Perspective; Single Center Experience.

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Summary
This summary is machine-generated.

Interstitial pneumonia with autoimmune features (IPAF) affects middle-aged women. High-dose glucocorticoids may be linked to mortality, but this requires further investigation.

Keywords:
autoimmunitycyclophosphamideglucocorticoidsinterstitial lung disease

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Area of Science:

  • Rheumatology
  • Pulmonology
  • Immunology

Background:

  • Interstitial pneumonia with autoimmune features (IPAF) is a recently defined entity.
  • IPAF involves interstitial lung disease (ILD) with autoimmune features not meeting criteria for defined connective tissue diseases (CTDs).

Purpose of the Study:

  • To evaluate clinical characteristics, treatment, and outcomes of IPAF patients.
  • Identify factors associated with mortality in IPAF.

Main Methods:

  • Retrospective analysis of 72 patients meeting IPAF criteria.
  • Collected demographic, clinical, serological, radiological, pulmonary function, treatment, and survival data.
  • Logistic regression analysis for mortality predictors.

Main Results:

  • The cohort was 62.5% female, mean age 62.7 years.
  • Nonspecific interstitial pneumonia was the most common radiological pattern (83.3%).
  • High-dose glucocorticoid therapy (≥20 mg/day) was associated with increased mortality (OR 6.13).

Conclusions:

  • IPAF predominantly affects middle-aged females.
  • High-dose glucocorticoid use showed an association with mortality, potentially reflecting disease severity.
  • Further prospective studies are needed to optimize IPAF management.