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Related Concept Videos

Introduction to Connective Tissues01:11

Introduction to Connective Tissues

Connective tissues are one of the four main tissue types in humans that are extensively present in the body. They are characterized by cells embedded in an extracellular matrix (ECM) composed of a ground substance and three main types of protein fibers— collagen, elastic, and reticular fibers. The ground substance of connective tissues can range from a watery and jelly-like consistency to mineralized and hard. The wide variety of cells in the connective tissues include fibroblasts, osteocytes,...
Connective Tissue Cell Types01:22

Connective Tissue Cell Types

Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Endocarditis I: Introduction01:25

Endocarditis I: Introduction

Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...
Fluid Connective Tissues: Blood and Lymph01:20

Fluid Connective Tissues: Blood and Lymph

Blood and lymph are fluid connective tissues. They contain cells, also known as formed elements, circulating in a liquid extracellular matrix, the plasma. The formed elements are derived from hematopoietic stem cells in the bone marrow. Blood and lymph connect all vital parts and carry nutrients, oxygen, and other essential molecules like antibodies.
Blood
The blood flows through blood vessels— arteries, capillaries, and veins. Blood plasma is primarily made of proteins, solutes, and water.
Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...

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Infections, connective tissue diseases and vasculitis.

T Avcin1, M Canova, P Guilpain

  • 1Department of Allergology, Rheumatology and Clinical Immunology, University Children's Hospital, University Medical Center Ljubljana, Slovenia.

Clinical and Experimental Rheumatology
|July 1, 2008
PubMed
Summary

Infectious agents may trigger autoimmune rheumatic diseases (ARD) in susceptible individuals. Research suggests pathogens contribute to ARD development and exacerbation, necessitating new infection prevention strategies.

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Area of Science:

  • Immunology
  • Rheumatology
  • Infectious Diseases

Background:

  • Autoimmune rheumatic diseases (ARD) are complex conditions.
  • Genetic predisposition plays a role in ARD development.
  • The role of infectious agents in ARD induction is under investigation.

Purpose of the Study:

  • To review the potential role of infectious agents in triggering autoimmunity.
  • To explore the contribution of pathogens to specific ARD like lupus and vasculitis.
  • To discuss infection complications and therapeutic advancements in ARD.

Main Methods:

  • Literature review of studies on infectious agents and ARD.
  • Analysis of data from animal models and human studies.
  • Examination of clinical manifestations and treatment strategies.

Main Results:

  • Evidence suggests pathogens can induce or worsen ARD in genetically predisposed individuals.
  • Specific ARD, including systemic lupus erythematosus and primary vasculitis, are discussed.
  • Infections are common in ARD patients due to immune dysregulation and treatments.

Conclusions:

  • Infectious agents are plausible triggers for autoimmunity in ARD.
  • Revised therapeutic approaches and infection prevention are crucial for improving ARD patient outcomes.