Maternal vitamin K deficient embryopathy: association with hyperemesis gravidarum and Crohn disease

Area of Science:

• Medical Genetics
• Developmental Biology
• Nutritional Science

Background:

• Chondrodysplasia punctata (CDP) is a group of disorders defined by epiphyseal stippling.
• The Binder phenotype, characterized by midface hypoplasia and nasal cartilage issues, is often associated with CDP.
• Abnormalities in distal phalanges, or brachytelephalangy, are also common features.

Observation:

• Eight patients presenting with Binder phenotype, with or without CDP, were identified.
• All these patients had a history of maternal vitamin K deficiency, either confirmed or suspected.
• Hyperemesis gravidarum was noted as a significant risk factor for maternal nutritional deficiency.

Findings:

• A strong association exists between maternal vitamin K deficiency and the occurrence of Binder phenotype and/or CDP in offspring.
• The study suggests that this phenotype may be underdiagnosed.
• Nutritional deficiencies during pregnancy, particularly vitamin K deficiency linked to conditions like hyperemesis gravidarum, are implicated.

Implications:

• Increased awareness of maternal vitamin K deficiency as a cause of specific congenital phenotypes is warranted.
• Prenatal screening for nutritional deficiencies, especially in cases of hyperemesis gravidarum, could aid in early detection and intervention.
• This research highlights the critical role of maternal nutrition in fetal development and the prevention of congenital anomalies.