Diseases » Chromosome conditions » Introduction

Chromosome conditions

Chromosome conditions: Introduction

Chromosome diseases are genetic diseases where a large part of the genetic code has been disrupted. Chromosomes are long sequences of DNA that contain hundreds or thousands of genes. Every person has 2 copies of each of the 23 chromosomes, called chromosomes 1..22 (or "autosomes") and the 23rd is the sex chromosome, which is either X and Y. Men are XY and women are XX in the 23rd chromosome pair.

The most common type of chromosomal condition is a trisomy condition involving a triplet of chromosomes. Trisomy conditions are chromosome conditions where the disease results from an extra chromosome. Normal humans have two copies of the non-sex chromosomes 1..22, and disease arises if a fetus wrongly gets a third copy of any of these chromosomes.

See also articles Introduction to Genetics, Introduction to Chromosome Diseases, and Introduction to Genetic Diseases.

Symptoms of Chromosome conditions

Read more about symptoms of Chromosome conditions

Disease Topics Related To Chromosome conditions

Research the causes of these diseases that are similar to, or related to, Chromosome conditions:

• Down's syndrome
• Edward syndrome
• Patau syndrome
• Noonan syndrome
• Cri du chat syndrome
• more related diseases...»

Medical Textbooks Online about Chromosome conditions

Book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.

Wrongly Diagnosed with Chromosome conditions?

• Misdiagnosis of Chromosome conditions
• Hidden causes of Chromosome conditions (possibly wrongly diagnosed)

Causes of Chromosome conditions

Read more about causes of Chromosome conditions.

More information about causes of Chromosome conditions:

• Chromosome conditions as a symptom

News Archives for Chromosome conditions

Medical news articles related to Chromosome conditions include:

• Chromosome Abnormalities Raise Risk for Autism
• Abnormal Heartbeat After Bypass a Bad Sign
• New Drug Shows Promise Against Heartbeat Abnormality
• Chromosome Linked to Diabetics' Heart Risks
• Women at Higher Risk of Abnormal Burn Scars
• more health news...»

Source: HealthDay News

Evidence Based Medicine Research for Chromosome conditions

Medical research articles related to Chromosome conditions include:

• Prenatal Screening for Fetal Aneuploidy
• Amniocentesis
• more research...»

Click here to find more evidence-based articles on the TRIP Database

Videos for Chromosome conditions

See full list of 8 related videos

Patient Surveys for Chromosome conditions

• Patient Profile Survey
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• Survey about the symptoms of your Chromosome conditions
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Prognosis for Chromosome conditions

More about prognosis of Chromosome conditions

Reseach about Chromosome conditions

Visit our research pages for current research about Chromosome conditions treatments.

Clinical Trials for Chromosome conditions

The US based website ClinicalTrials.gov lists information on both federally and privately supported clinical trials using human volunteers.

Some of the clinical trials listed on ClinicalTrials.gov for Chromosome conditions include:

• Noninvasive Prenatal Diagnosis: Using Fetal Cells From Maternal Blood - This study is no longer recruiting patients (Current: 23 Nov 2006)
• Natural History Study of Smith-Magenis Syndrome - This study is currently recruiting patients (Current: 23 Nov 2006)
• Study of Phenotype and Genotype Correlations in Patients With Contiguous Gene Deletion Syndromes - This study has been completed (Current: 23 Nov 2006)
• Immunologic Evaluation in Patients With DiGeorge Syndrome or Velocardiofacial Syndrome - This study is currently recruiting patients (Current: 23 Nov 2006)
• Down Syndrome - Comparison of Screening Methods in the 1st and 2nd Trimesters - This study is no longer recruiting patients (Current: 23 Nov 2006)
• more trials...»

See full list of 49 Clinical Trials for Chromosome conditions

Statistics for Chromosome conditions

• Medical statistics for Chromosome conditions
• Prevalence and incidence statistics for Chromosome conditions
• Death and Mortality statistics for Chromosome conditions
• Society statistics for Chromosome conditions

Chromosome conditions: Broader Related Topics

• All Disease Categories
• Non-Contagious Diseases
• more types...»

Types of Chromosome conditions

Types of Chromosome conditions

• Trisomy conditions
  • Down Syndrome
  • Edwards Syndrome
  • Patau syndrome
  • Trisomy 22
• more types...»

See full list of 14 Types of Chromosome conditions

Stories from Users Related to Chromosome conditions

• What on earth does 'abnormally thick walls of the cervix' mean?
• abnormal cbc and cmp???
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• PSVT w/ l. atrail abnormality & septal infarction
• Abnormal discharge
• rare chromosome 3 disorder
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• Abnormal?

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User Interactive Forums

Read about other experiences, ask a question about Chromosome conditions, or answer someone else's question, on our message boards:

• I can not get a diagnosis. Please help.
• Tell us your medical story.
• Share your misdiagnosis story.
• What is the best treatment for this?
• See all the forums.

Definitions of Chromosome conditions:

Clinical conditions caused by an abnormal chromosome constitution in which there is extra or missing chromosome material (either a whole chromosome or a chromosome segment). (from Thompson et al., Genetics in Medicine, 5th ed, p429) - (Source - Diseases Database)

Chromosome conditions is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Chromosome conditions, or a subtype of Chromosome conditions, affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)

 » Next page: What is Chromosome conditions?

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