Related Experiment Video
Updated: Jul 1, 2025

00:06
In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
Published on: August 20, 2019
13.6K
Syndromic Piere Robbin Sequence- A Rare Presentation in Association with Multiple Heart Defects and Type III Stickler
Soubia Akhtar1, Muhammad Wasif1, Yumna Afzal1
1Dr Ziauddin University hospital, Karachi, Pakistan.
Summary
This report details the first known case of a newborn with Pierre Robin Sequence experiencing two simultaneous heart defects: patent ductus arteriosus and patent foramen ovale. This finding highlights potential cardiac complications in infants with this rare congenital disorder.
Area of Science:
- Pediatrics
- Cardiology
- Genetics
Background:
- Pierre Robin Sequence (PRS) is a congenital disorder characterized by micrognathia, glossoptosis, and airway obstruction.
- PRS can occur as an isolated anomaly or be part of a syndrome, such as Stickler Syndrome.
- Congenital heart defects are observed in approximately 20% of children with PRS.
Purpose of the Study:
- To report the first case of a neonate with Pierre Robin Sequence presenting with two specific congenital heart defects.
- To increase awareness of potential cardiac comorbidities in infants diagnosed with PRS.
Main Methods:
- Case report of a one-day-old infant diagnosed with Pierre Robin Sequence.
- Clinical examination and diagnostic procedures to identify congenital anomalies.
Main Results:
- The infant presented with Pierre Robin Sequence and two concurrent heart defects: patent ductus arteriosus and patent foramen ovale.
- This represents the first documented instance of this specific combination of conditions in a PRS patient.
Conclusions:
- The co-occurrence of patent ductus arteriosus and patent foramen ovale in this PRS case is notable.
- This case underscores the importance of thorough cardiac evaluation in infants with Pierre Robin Sequence.
Related Concept Videos
Pleiotropy
40.4K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
40.4K
Genomic Imprinting and Inheritance
34.4K
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...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
34.4K
Incomplete Dominance
22.6K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
22.6K
Pedigree Analysis
84.2K
Overview
84.2K
Alternative RNA Splicing
21.1K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
21.1K
Sex-linked Disorders
102.1K
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.
102.1K

