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BDNF Val66Met polymorphism and protein levels in amniotic fluid
Annamaria Cattaneo1, Luisella Bocchio-Chiavetto, Roberta Zanardini
1Genetics Unit, IRCCS San Giovanni di Dio, Fatebenefratelli, Brescia, Italy.
BMC Neuroscience
|February 10, 2010
Summary
The Val66Met polymorphism in Brain-Derived Neurotrophic Factor (BDNF) is linked to lower BDNF protein levels in amniotic fluid. This suggests early fetal development may be influenced by this genetic variation.
Area of Science:
- Neuroscience
- Genetics
- Developmental Biology
Background:
- Brain-Derived Neurotrophic Factor (BDNF) is crucial for neuronal survival, growth, and synaptic plasticity.
- The Val66Met polymorphism in BDNF affects protein trafficking and has been linked to cognitive deficits and psychiatric disorders.
- Previous research has not examined the impact of the Val66Met polymorphism on peripheral BDNF levels during fetal development.
Purpose of the Study:
- To investigate the association between the Val66Met polymorphism and BDNF protein levels in amniotic fluid.
- To explore potential early indicators of neurodevelopmental influences related to BDNF genetics.
Main Methods:
- Analysis of amniotic fluid samples from 139 healthy pregnant women (15-17 weeks gestation).
- Measurement of BDNF protein levels.
- Genotyping for the Val66Met polymorphism in the BDNF gene.
Main Results:
- A significant reduction in BDNF protein levels was observed in Met carriers (Val/Met and Met/Met genotypes) compared to non-carriers (Val/Val genotype) (p = 0.002).
- No significant effects of fetus gender, maternal age, or gestational week on BDNF levels were found.
Conclusions:
- The Val66Met genotype may influence BDNF protein levels during fetal development.
- These findings suggest a potential role for this BDNF polymorphism in shaping individual differences in brain function and behavior later in life.
