Trace Element Status in Children with Infantile Tremor Syndrome: An Inductively Coupled Plasma-Mass Spectrometry

Deepak Trinity Francis1, Savita Verma1, Prateek Bhatia2

  • 1Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India.

Insights

Infantile tremor syndrome (ITS) is strongly associated with vitamin B12 deficiency, not other trace elements. This finding supports ITS being a form of Neurocutaneous Infantile B-12 deficiency (NIB) syndrome.

Area of Science:

  • Pediatric Neurology
  • Nutritional Science

Background:

  • Infantile tremor syndrome (ITS) is a neurological disorder in infants.
  • The role of trace elements and vitamins in ITS pathogenesis requires further investigation.

Purpose of the Study:

  • To compare the trace element and vitamin B12 status in children with ITS versus healthy controls.
  • To investigate potential associations between nutrient deficiencies and ITS.

Main Methods:

  • Blood counts, serum vitamin B12, plasma homocysteine, plasma ferritin, magnesium, zinc, and selenium levels were analyzed.
  • Comparison between 26 children with ITS and 19 healthy controls.

Main Results:

  • Children with ITS showed significantly lower vitamin B12 levels (67% vs. 5%) and higher plasma homocysteine (96% vs. 26%) compared to controls.
  • No significant differences were observed in magnesium, zinc, or selenium levels between groups.
  • Hypoferritinemia was present in controls but not in ITS cases.

Conclusions:

  • ITS is strongly associated with vitamin B12 deficiency.
  • The findings support classifying ITS as Neurocutaneous Infantile B-12 deficiency (NIB) syndrome.
  • Trace elements like magnesium, zinc, and selenium do not appear to be primary factors in ITS.

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