Frasier Syndrome

Version	Summary	Created by	Modification	Content Size	Created at	Operation
1		Nicole Yin	+ 397 word(s)	397	2020-12-15 07:24:33

This entry is adapted from the peer-reviewed paper https://medlineplus.gov/genetics/condition/frasier-syndrome

Frasier syndrome is a condition that affects the kidneys and genitalia.

genetic conditions

1. Introduction

Frasier syndrome is characterized by kidney disease that begins in early childhood. Affected individuals have a condition called focal segmental glomerulosclerosis, in which scar tissue forms in some glomeruli, which are the tiny blood vessels in the kidneys that filter waste from blood. In people with Frasier syndrome, this condition often leads to kidney failure by adolescence.

Although males with Frasier syndrome have the typical male chromosome pattern (46,XY), they have gonadal dysgenesis, in which external genitalia do not look clearly male or clearly female (ambiguous genitalia) or the genitalia appear completely female. The internal reproductive organs (gonads) are typically undeveloped and referred to as streak gonads. These abnormal gonads are nonfunctional and often become cancerous, so they are usually removed surgically early in life.

Affected females usually have normal genitalia and gonads and have only the kidney features of the condition. Because they do not have all the features of the condition, females are usually given the diagnosis of isolated nephrotic syndrome.

2. Frequency

Frasier syndrome is thought to be a rare condition; approximately 50 cases have been described in the scientific literature.

3. Causes

Mutations in the WT1 gene cause Frasier syndrome. The WT1 gene provides instructions for making a protein that regulates the activity of other genes by attaching (binding) to specific regions of DNA. On the basis of this action, the WT1 protein is called a transcription factor. The WT1 protein plays a role in the development of the kidneys and gonads (ovaries in females and testes in males) before birth.

The WT1 gene mutations that cause Frasier syndrome lead to the production of a protein with an impaired ability to control gene activity and regulate the development of the kidneys and reproductive organs, resulting in the signs and symptoms of Frasier syndrome.

Frasier syndrome has features similar to another condition called Denys-Drash syndrome, which is also caused by mutations in the WT1 gene. Because these two conditions share a genetic cause and have overlapping features, some researchers have suggested that they are part of a spectrum and not two distinct conditions.

4. Inheritance

This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder.

5. Other Names for This Condition

References

Andrade JG, Guaragna MS, Soardi FC, Guerra-Júnior G, Mello MP, Maciel-GuerraAT. Clinical and genetic findings of five patients with WT1-related disorders.Arq Bras Endocrinol Metabol. 2008 Nov;52(8):1236-43.
Fujita S, Sugimoto K, Miyazawa T, Yanagida H, Tabata N, Okada M, Takemura T. Afemale infant with Frasier syndrome showing splice site mutation in Wilms' tumor gene (WT1) intron 9. Clin Nephrol. 2010 Jun;73(6):487-91.
Niaudet P, Gubler MC. WT1 and glomerular diseases. Pediatr Nephrol. 2006Nov;21(11):1653-60.

©Text is available under the terms and conditions of the Creative Commons-Attribution ShareAlike (CC BY-SA) license; additional terms may apply. By using this site, you agree to the Terms and Conditions and Privacy Policy.

Upload a video for this entry

Information

Subjects: Genetics & Heredity

Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register :

Nicole Yin

View Times: 357

Entry Collection: MedlinePlus

Update Date: 25 Dec 2020

Table of Contents

Video Upload Options

Confirm

1. Introduction

2. Frequency

3. Causes

4. Inheritance

5. Other Names for This Condition

References

Video Upload Options

Confirm

1. Introduction

2. Frequency

3. Causes

3.1. The Gene Associated with Frasier Syndrome

4. Inheritance

5. Other Names for This Condition

References