Related Experiment Video
Updated: Jun 19, 2025

09:26
Quantification of Orofacial Phenotypes in Xenopus
Published on: November 6, 2014
9.7K
Orofacial Clefts and Maternal Risk Factors: A Population-Based Case-Control Study
Michele Santoro1, Lorena Mezzasalma1, Alessio Coi1
1Unit of Epidemiology of Rare Diseases and Congenital Anomalies, Institute of Clinical Physiology, National Research Council, 56124 Pisa, Italy.
Children (Basel, Switzerland)
|July 27, 2024
Summary
Lower maternal age is associated with orofacial clefts (OFCs). Underweight mothers also showed a higher prevalence of cleft lip (CL), suggesting potential primary prevention strategies.
Area of Science:
- Medical Science
- Epidemiology
- Public Health
Background:
- Orofacial clefts (OFCs) are prevalent congenital anomalies globally.
- Understanding risk factors is crucial for prevention and management.
Purpose of the Study:
- To investigate the association between orofacial clefts and maternal characteristics.
- To analyze risk factors for isolated non-syndromic OFCs.
Main Methods:
- Case-control study utilizing a population-based registry of congenital anomalies.
- Analysis of maternal factors including age, BMI, smoking, and education.
- Logistic regression models used to calculate adjusted odds ratios (OR).
Main Results:
- 219 cases and 37,988 controls analyzed.
- Higher male proportion observed, especially for cleft lip (CL).
- Lower maternal age showed a decreasing trend (OR: 0.81).
- Underweight mothers had higher OFC prevalence, particularly for CL (OR: 1.88).
Conclusions:
- Association found between OFCs and lower maternal age.
- Cleft lip (CL) more common in underweight mothers, indicating primary prevention opportunities.
- Further multicenter studies are needed to confirm maternal age association.
Related Concept Videos
Nondisjunction
3.8K
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...
3.8K
Oogenesis
63.6K
In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
63.6K
Genomic Imprinting and Inheritance
34.2K
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...
34.2K

