SCIENTIFIC BACKGROUND

DPYD

SCIENTIFIC BACKGROUND

Genetic DPD deficiency leads to disorders of pyrimidine metabolism. Patients with two pathogenic variants in both alleles of the DPYD gene in combined heterozygous or homozygous form often present with developmental disorders, seizures, short stature, microcephaly, dysmorphia and autistic behaviors. A clear genotype-phenotype correlation has not yet been demonstrated, as the expression of symptoms in patients described in the literature varies widely. To date, the underlying pathomechanism of the syndrome is also not clear. A laboratory diagnosis of thymine uraciluria specifically indicates DPD deficiency.

 

Chemotherapy with 5-fluorouracil (5-FU) and its prodrugs is contraindicated in patients with this syndrome.

 

References

Al-Sanna'a et al. 2005, J Inherit Metab Dis 28:793 / Albin et al. 1995, Proc Am Assoc Cancer Res 36: 211 / Berger et al. 1984, Clin Chim Acta 141: 227

GENES

DPYD

ASSOCIATED TESTS

How to order

LATEST ARTICLES

Mosaicism is a biological phenomenon in which a person has two or more genetically different sets of cells. Although mosaicism may have no effect, it...

Read more

Background information on in vitro diagnostic services Laboratory-based testing methods and medical devices play a critical role in diagnosis and ...

Read more

Traditional DNA tests may overlook 10% of classic in Familial Adenomatous Polyposis (FAP) cases. By integrating RNA sequencing, researchers unveiled ...

Read more

Overview In January 2024, the American Society of Clinical Oncology (ASCO) and the Society of Surgical Oncology (SSO) published new recommendation...

Read more

Endometriosis is a chronic gynecological condition that affects 1 in 10 women of reproductive age worldwide [1]. It can manifest with the first menst...

Read more

Rare Disease Day is a global awareness day held annually to raise awareness of all rare diseases. It was first celebrated in 2008, on the rarest day ...

Read more

Cancer is a group of genetic diseases that can develop almost anywhere in the body. Many people in the world are affected by cancer every year. Follo...

Read more

Aiming to evaluate the role of chromosomal aneuploidy in pregnancy loss, a 2023 study 35 years in the making evaluated the genomic landscape of first...

Read more

Cancer is a complex genetic disease that affects millions of people in the world. It is one of the leading causes of death worldwide, with about ten ...

Read more

Researchers created a detailed map of the placenta during labor. By studying how maternal and fetal cells communicate, they discovered signals in the...

Read more