What is the target galactose-1-phosphate on treatment?

RBC galactose-1-phosphate 3 mg/dL correlate with worse cognitive and neurodevelopmental outcomes despite treatment.

Why do galactosemia patients have complications despite dietary restriction?

Endogenous galactose production from glucose (de novo synthesis) accounts for 50% of galactose exposure; this cannot be eliminated by diet alone, causing ongoing cellular toxicity.

What cognitive complications occur in galactosemia?

Despite early treatment, 50-80% of patients develop intellectual disability (IQ 60-80 range), speech/language disorders, learning disabilities, and executive function deficits.

What is primary ovarian insufficiency prevalence in galactosemia?

80-90% of affected females develop POI with hypergonadotropic hypogonadism; fertility is severely reduced; HRT starting at expected puberty is standard of care.

What is the Duarte galactosemia variant?

Duarte galactosemia (D2/N or D2/D2) has 25-50% GALT activity; current evidence does not support dietary restriction in Duarte galactosemia as outcomes appear normal.

Classic Galactosemia Outcome Monitoring Calculator

Monitors classic galactosemia (GALT deficiency) on dietary galactose restriction, assessing RBC GALT activity, galactose-1-phosphate levels, developmental outcomes, and ovarian insufficiency in females.

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Frequently Asked Questions

What is the target galactose-1-phosphate on treatment?

Why do galactosemia patients have complications despite dietary restriction?

What cognitive complications occur in galactosemia?

What is primary ovarian insufficiency prevalence in galactosemia?

What is the Duarte galactosemia variant?