Related Experiment Video
Updated: Jul 4, 2026
06:38
In Vitro Modeling of Down Syndrome Neurogenesis Using Human-Induced Pluripotent Stem Cells
Published on: March 7, 2025
[Biochemical alterations in patients with Down syndrome]
Petra Varga1, Anna V Oláh, Eva Oláh
1Debreceni Egyetem, Orvos- és Egészségtudományi Centrum Gyermekklinika Debrecen. peatra@freemail.hu
Orvosi Hetilap
|June 21, 2008
Summary
Down syndrome patients show altered homocysteine, folic acid, and vitamin B12 levels, potentially due to increased enzyme activity. High S100 protein suggests brain damage, indicating a need for regular monitoring and folic acid supplementation.
Area of Science:
- Biochemistry
- Genetics
- Clinical Medicine
Context:
- Down syndrome, a genetic disorder caused by trisomy 21, presents with intellectual disability and specific clinical features.
- While the genetic cause is incurable, managing associated symptoms can enhance patient quality of life.
Purpose:
- To investigate correlations between Down syndrome-specific genes and biochemical changes.
- To assess serum antioxidant capacity, homocysteine, folic acid, and vitamin B12 levels.
- To evaluate markers of vascular damage, including NAG activity and S100B levels.
Summary:
- Patients with Down syndrome exhibited lower than reference plasma homocysteine, folic acid, and vitamin B12 levels.
- Antioxidant activity did not differ between Down syndrome patients and controls, with neither group reaching adult reference ranges.
- Elevated S100 protein concentrations were observed, indicating potential brain damage, while N-acetyl-beta-D-glucosaminidase levels remained within normal limits.
Impact:
- Findings suggest increased cystathionine-beta-synthase activity may explain altered homocysteine and vitamin levels.
- Normal antioxidant and NAG levels support a hypothesis of balanced oxidative metabolism and no vascular damage.
- Elevated S100B levels correlate with age-related brain changes, supporting regular monitoring and potential folic acid supplementation to improve cognitive function and quality of life.
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