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Related Concept Videos

Genetic Lingo01:11

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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”.
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Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
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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.
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Updated: Apr 27, 2026

In Vitro Method to Study Sex-Based Differences in Conjunctival Goblet Cells
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Gender specific issues in hereditary ocular disorders.

Saradha Iragavarapu1, Michael B Gorin

  • 1Department of Ophthalmology , UCLA, Los Angeles, CA , USA and.

Current Eye Research
|July 15, 2014
PubMed
Summary

Gender influences hereditary eye disorders, affecting disease progression and X-linked conditions. More research is needed to understand these gender-related factors and improve patient care.

Area of Science:

  • Ophthalmology
  • Genetics
  • Endocrinology

Background:

  • Hereditary ocular disorders can be influenced by gender-related biological factors.
  • Sex hormones in animal models affect cell pathways relevant to eye diseases.
  • Clinical evidence for gender differences in human ocular conditions is limited, except for X-linked disorders.

Purpose of the Study:

  • To review current knowledge on gender-related factors in hereditary ocular disorders.
  • To explore how gender impacts disease onset, progression, and management.
  • To identify gaps in research and clinical understanding.

Main Methods:

  • Literature review of basic science and clinical studies.
  • Analysis of PubMed-cited articles.
  • Focus on gender-related biological factors, X-linked disorders, and clinical management.
Keywords:
Genderhereditary ocular disordershormones

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Main Results:

  • Animal studies show sex hormones affect cell pathways impacting hereditary eye disorders.
  • Few human studies demonstrate gender differences, primarily in X-linked conditions.
  • Clinical data on gender-specific conditions and therapies is largely anecdotal.

Conclusions:

  • Gender-specific factors significantly influence the biological pathways of genetic eye conditions.
  • Clinicians must recognize variable phenotypes in female carriers and address gender-specific issues.
  • Further clinical research is crucial to understand and manage gender's role in hereditary eye disorders.