Incidence of Menkes disease

T Tønnesen1, W J Kleijer, N Horn

  • 1John F. Kennedy Institute, Glostrup, Denmark.

Human Genetics
|February 1, 1991
PubMed

Insights

The incidence of Menkes disease is 1 in 298,000 live births, significantly lower than previously reported. This rare genetic disorder affects copper metabolism, impacting male infants.

Area of Science:

  • Genetics
  • Pediatrics
  • Metabolic Disorders

Background:

  • Menkes disease is a rare X-linked recessive disorder.
  • It is caused by mutations in the ATP7A gene, affecting copper transport.
  • Previous incidence estimates varied significantly.

Purpose of the Study:

  • To accurately calculate the incidence of Menkes disease in five European countries.
  • To compare current incidence rates with historical data.
  • To estimate the mutation rate for Menkes disease.

Main Methods:

  • Retrospective analysis of Menkes disease patients born between 1976-1987.
  • Data collected from Denmark, France, The Netherlands, the United Kingdom, and West Germany.
  • Calculation of incidence based on live-born patients and estimated affected fetuses.

Main Results:

  • The combined incidence of Menkes disease was 1 per 298,000 live births.
  • Including affected aborted fetuses, the incidence rose to 1 per 254,000 live births.
  • These figures are 2-4 times lower than previously published estimates.

Conclusions:

  • Menkes disease is an extremely rare condition.
  • The calculated incidence provides a more accurate understanding of its prevalence.
  • The estimated mutation rate for Menkes disease is 1.96 x 10(-6).

Related Concept Videos

Meiosis I01:49

Meiosis I

Meiosis is a carefully orchestrated set of cell divisions, the goal of which—in humans—is to produce haploid sperm or eggs, each containing half the number of chromosomes present in somatic cells elsewhere in the body. Meiosis I is the first such division, and involves several key steps, among them: condensation of replicated chromosomes in diploid cells; the pairing of homologous chromosomes and their exchange of information; and finally, the separation of homologous chromosomes by a...
Pedigree Analysis01:35

Pedigree Analysis

Overview
Sex-linked Disorders01:43

Sex-linked Disorders

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.
Genomic Imprinting and Inheritance02:30

Genomic Imprinting and Inheritance

Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Lethal Alleles02:41

Lethal Alleles

Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Huntington Disease l: Introduction01:21

Huntington Disease l: Introduction

Huntington disease or HD is a progressive, fatal neurodegenerative disorder inherited in an autosomal dominant pattern.PathophysiologyIt is caused by expansion of the CAG trinucleotide repeat in the HTT gene on chromosome 4 (4p16.3), producing an abnormal huntingtin protein with an expanded polyglutamine tract. This misfolded protein disrupts cellular function, leading to neuronal death. Normal alleles have ≤26 repeats, 27–35 are intermediate (risk of expansion), 36–39 show reduced penetrance,...