Neural Tube Defects in Tunisia: Epidemiological, Biochemical and Genetic Factors

Area of Science:

• Epidemiology
• Biochemistry
• Genetics

Background:

• Neural tube defects (NTDs) represent a significant global public health concern.
• Understanding the epidemiological, biochemical, and genetic factors contributing to NTDs is crucial for prevention strategies.

Purpose of the Study:

• To investigate epidemiological, biochemical, and genetic factors associated with neural tube defects in the Tunisian population.
• To identify specific vitamin deficiencies, homocysteine levels, and lipid profiles linked to NTDs.

Main Methods:

• Retrospective data collection from 1991-2011 and prospective data collection from 2012-2013.
• Analysis of plasma concentrations of folate, vitamin B12, vitamin D, homocysteine, and various fatty acids.
• Comparison of biochemical markers between cases with NTDs and control groups.

Main Results:

• Significantly lower plasma concentrations of folate, vitamin B12, and vitamin D were observed in cases compared to controls.
• Higher homocysteine concentrations were found in cases.
• Alterations in lipid profiles, including specific fatty acids like arachidonic acid and omega-3 polyunsaturated fatty acids, were noted in cases.

Conclusions:

• The study highlights significant biochemical variances in mothers with NTDs, particularly concerning vitamin status and homocysteine levels.
• Findings suggest that lipid profiles and specific fatty acid concentrations may also play a role in NTD occurrence.
• This research contributes to a better understanding of the multifactorial etiology of NTDs, informing potential preventative measures.