Related Experiment Video
Updated: Mar 7, 2026
08:28
Analysis of Congenital Heart Defects in Mouse Embryos Using Qualitative and Quantitative Histological Methods
Published on: March 10, 2020
7.4K
Announcement: World Birth Defects Day - March 3, 2017
MMWR. Morbidity and Mortality Weekly Report
|February 24, 2017
Insights
Serious birth defects affect 3%-6% of infants globally each year, posing significant risks. These conditions are a leading cause of early childhood death and can lead to lifelong disabilities for survivors.
Area of Science:
- Pediatrics
- Public Health
- Genetics
Background:
- Birth defects represent a significant global health challenge, impacting 3%-6% of newborns annually.
- These congenital anomalies are a primary cause of infant and young child mortality in numerous countries.
- Affected individuals face a heightened risk of long-term disabilities, impacting quality of life.
Discussion:
- The prevalence of birth defects underscores the need for comprehensive public health strategies.
- Understanding the diverse origins and impacts of these conditions is crucial for effective intervention.
- Addressing birth defects requires a multi-faceted approach, including prevention, early detection, and ongoing support.
Key Insights:
- Birth defects are a widespread issue affecting infants across all demographics.
- Mortality rates associated with birth defects highlight their severity.
- The long-term consequences for survivors necessitate dedicated care and resources.
Outlook:
- Continued research into the causes and prevention of birth defects is essential.
- Improving access to specialized care can mitigate lifelong disabilities.
- Global collaboration is key to reducing the burden of birth defects worldwide.
Abstract:
Every year, approximately 3%-6% of infants worldwide are born with a serious birth defect (1-5). Birth defects can affect an infant regardless of birthplace, race, or ethnicity. In many countries, birth defects are among the leading causes of death for infants and young children (6). Those who survive and live with these conditions are at an increased risk for lifelong disabilities.
Related Concept Videos
01:07Teratogenicity
4.4K
The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
4.4K
01:30Neurulation
46.8K
Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the...
46.8K
01:20Inborn Errors of Metabolism
967
Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
967
01:21Nondisjunction
5.4K
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...
5.4K
01:29Nondisjunction
82.9K
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.
82.9K
01:43Sex-linked Disorders
110.0K
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.
110.0K