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Related Concept Videos

Immunodeficiency Diseases01:25

Immunodeficiency Diseases

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Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency...
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Development of Immunocompetence01:22

Development of Immunocompetence

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The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
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Autoimmune Disorders01:29

Autoimmune Disorders

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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.
Concept and Mechanism of Autoimmune Diseases
The immune...
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Special Features of Adaptive Immunity01:20

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The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
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Immunological Memory01:23

Immunological Memory

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Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
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Primary Lymphoid Organs01:16

Primary Lymphoid Organs

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Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
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Common Variable Immune Deficiency: An Outpatient Experience.

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This summary is machine-generated.

Common variable immunodeficiency (CVID) is underdiagnosed, but a higher number of infectious disease clinic visits may suggest this condition. This study indicates CVID prevalence is likely underestimated.

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Area of Science:

  • Immunology
  • Primary Immunodeficiency Diseases

Background:

  • Common variable immunodeficiency (CVID) is a frequent primary immunodeficiency, yet it remains underdiagnosed and underreported.
  • CVID is characterized by hypogammaglobulinemia, recurrent infections, and increased risks of autoimmune diseases and malignancies.
  • Diagnostic challenges in primary care settings stem from diverse presentations and complex testing.

Purpose of the Study:

  • To identify a simple marker for raising CVID suspicion in primary care.
  • To prompt further diagnostic evaluation for potential CVID cases.
  • To assess the true prevalence of CVID, hypothesizing it is higher than currently reported.

Main Methods:

  • Retrospective analysis of 441 patients undergoing immunoglobulin (Ig) electrophoresis.
  • Evaluation of hypogammaglobulinemia and correlation with the number of clinic visits for infections.
  • Statistical analysis to determine the significance of clinic visit frequency in predicting Ig deficiency.

Main Results:

  • Patients with Ig deficiencies had a slightly higher average number of clinic visits for infections (2.22) compared to those without (1.89).
  • The odds ratio for each additional clinic visit was not statistically significant (P=0.103).
  • A marginally significant odds ratio (P=0.058) was observed when clinic visits were capped at six, suggesting a potential trend.

Conclusions:

  • A higher frequency of clinic visits for infections may indicate Ig deficiencies, though not statistically significant in this study.
  • The study suggests that the actual prevalence of CVID is likely higher than previously estimated.
  • The diagnostic process for CVID is complex and presents significant challenges in primary care settings.