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Related Concept Videos

Autoimmune Disorders01:29

Autoimmune Disorders

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 system...
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...
Pedigree Analysis01:35

Pedigree Analysis

Overview
X and Y Chromosomes02:32

X and Y Chromosomes

Among mammals, the gender of an organism is determined by the sex chromosomes. Humans have two sex chromosomes, X and Y. Every human diploid cell has 22 pairs of autosomes and one pair of sex chromosomes. A human female has two X chromosomes, while a male has one X chromosome and one Y chromosome.
The germline cells such as egg and sperm cells carry only half the number of chromosomes, i.e., 22 autosomes and one sex chromosome. All eggs have an X chromosome, while sperm cells can carry an X or...
X-linked Traits01:19

X-linked Traits

In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.
What is the Immune System?01:38

What is the Immune System?

Overview

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Related Experiment Video

Updated: Jul 18, 2026

Modeling Multiple Sclerosis in the Two Sexes: MOG35-55-Induced Experimental Autoimmune Encephalomyelitis
05:44

Modeling Multiple Sclerosis in the Two Sexes: MOG35-55-Induced Experimental Autoimmune Encephalomyelitis

Published on: October 13, 2023

Sex differences in autoimmune disease.

Michael D Lockshin1

  • 1Barbara Volcker Center for Women and Rheumatic Disease, Mary Kirkland Center for Lupus Research, Joan and Sanford Weill Medical College of Cornell University, Hospital for Special Surgery, New York, NY 10021, USA. LockshinM@hss.edu

The Orthopedic Clinics of North America
|December 5, 2006
PubMed
Summary

Sex differences in autoimmune disease frequency are not explained by intrinsic immune responses. Environmental exposures and unique female biologies like pregnancy may contribute to higher autoimmune disease prevalence in women.

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Area of Science:

  • Immunology
  • Autoimmune Diseases
  • Sex Differences in Health

Background:

  • Autoimmune diseases disproportionately affect women, but the reasons remain unclear.
  • Existing research suggests intrinsic immune response differences between sexes do not explain disease prevalence.
  • Environmental factors and unique female biological processes are potential contributors.

Purpose of the Study:

  • To explore potential explanations for the higher incidence of autoimmune diseases in women.
  • To evaluate the roles of intrinsic immunity, environmental exposures, hormones, and other biological factors.

Main Methods:

  • Review of existing literature on sex differences in autoimmune diseases.
  • Analysis of factors influencing disease development, including immune response, environmental agents, hormones, and chromosomal differences.
  • Consideration of unique female biological processes such as pregnancy and menstruation.

Main Results:

  • Intrinsic immune responses to infection and vaccination are similar in men and women.
  • Environmental exposures are often cited for sex discrepancies in autoimmune-like illnesses.
  • Hormonal influences may play a role, potentially through threshold effects rather than quantitative differences.
  • Chromosomal differences, chronobiologic variations, and female-specific biologies warrant further investigation.

Conclusions:

  • The higher frequency of autoimmune diseases in women is not fully explained by intrinsic sex-based immune differences.
  • Environmental exposures and unique female biological factors are likely significant contributors to sex discrepancies in autoimmune disease prevalence.
  • Further research into chromosomal, chronobiologic, and other biological factors is needed to fully understand these sex disparities.