Related Experiment Video
Updated: Apr 23, 2026

08:36
Separation of Mouse Embryonic Facial Ectoderm and Mesenchyme
Published on: April 12, 2013
10.8K
Ectrodactyly-ectodermal dysplasia-cleft lip and palate syndrome
Reema Sharma Dhar, Amitava Bora1
1Department of Pedodontics and Preventive Dentistry, Guru Nanak Institute of Dental Science and Research, Nilgunj Road, Panihati, Sodepur, Kolkata, West Bengal, India.
Journal of the Indian Society of Pedodontics and Preventive Dentistry
|September 19, 2014
Summary
Ectrodactyly-ectodermal dysplasia-cleft (EEC) syndrome, a rare disorder, presents with distinct physical anomalies. This case report details a child with EEC syndrome, highlighting its complex features and dental management.
Area of Science:
- Genetics and Developmental Biology
- Oral and Maxillofacial Surgery
- Pediatric Dentistry
Background:
- Ectrodactyly-ectodermal dysplasia-cleft (EEC) syndrome is an autosomal dominant disorder.
- It is characterized by the triad of ectrodactyly, ectodermal dysplasia, and facial clefting.
Observation:
- A rare case of EEC syndrome in a 4-year-old child is presented.
- The child exhibited ectrodermal dysplasia, cleft lip and palate, and ectrodactyly, along with other associated features.
Findings:
- The diagnosis of EEC syndrome was confirmed based on the clinical presentation.
- The report emphasizes the rarity of individuals presenting with all three major features of EEC syndrome.
Implications:
- This case highlights the importance of early diagnosis and a multidisciplinary approach for managing EEC syndrome.
- The crucial role of dentists in the comprehensive treatment of patients with EEC syndrome is underscored.
Related Concept Videos
Pleiotropy
31.2K
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,...
31.2K
Cohesins
4.5K
Cohesin protein complexes are a molecular glue that holds two sister chromatids together. They play an important role both in mitosis and meiosis. In mitosis, all cohesin complexes present on the chromosomes are removed before the start of the anaphase stage.
Cohesin complexes in Meiotic Division
Meiosis involves two distinct rounds of chromosomal segregation and cell divisions— Meiosis I followed by Meiosis II – producing four daughter cells. Meiosis I includes the separation of...
Cohesin complexes in Meiotic Division
Meiosis involves two distinct rounds of chromosomal segregation and cell divisions— Meiosis I followed by Meiosis II – producing four daughter cells. Meiosis I includes the separation of...
4.5K
Desmosomes
7.4K
The term desmosome derives from the Greek words "desmo" and "soma" meaning "adhesion bodies." This structure was first observed during the late 1800s and described as small, dense nodules in the epidermis. Desmosomes are button-like structures that help form an interlinked network of intermediate filaments across the cells. These junctions are essential to hold cells together under mechanical stress and to maintain tissue integrity. Desmosomes are multi-protein...
7.4K
Structure of Cadherins
3.9K
The cadherins were one of the first cell adhesion molecules discovered; the term “cadherins” is based on their calcium-dependent adhering properties. The first cadherins discovered on the epithelial, neuronal, and placental cells were named E-cadherin, P-cadherin, and N-cadherin, respectively. These classical cadherins share sequence and structural similarities. Other cadherins, including those involved in cell signaling, are grouped into non-classical cadherins. This...
3.9K
Nondisjunction
4.4K
Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate correctly and move to the opposite poles of the cells. This produces daughter cells with abnormal chromosome numbers. Nondisjunction is common during anaphase I or anaphase II of meiosis. Mutations in synaptonemal complex proteins that attach homologous chromosomes increase the chances of nondisjunction in anaphase I of meiosis I. In contrast, mutations in topoisomerases and condensins that hold...
4.4K
Nondisjunction
67.5K
During meiosis, chromosomes occasionally separate improperly. This occurs due to failure of homologous chromosome separation during meiosis I or failed sister chromatid separation during meiosis II. In some species, notably plants, nondisjunction can result in an organism with an entire additional set of chromosomes, which is called polyploidy. In humans, nondisjunction can occur during male or female gametogenesis and the resulting gametes possess one too many or one too few chromosomes.
67.5K

