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Carbonic anhydrase II deficiency a novel mutation
Sheela Nampoothiri1, Yair Anikster
1Department of Pediatric Genetics, Amrita Institute of Medical Sciences and Research Center, Aims Ponekkara, PO, Cochin, Kerala, India; and Metabolic Disease Unit, Safra Children Hospital, Sheba Medical Center, Tel Hashomer, Israel. sheelaknpn@yahoo.co.in
Carbonic anhydrase II (CA II) deficiency, a rare genetic disorder, presents with bone, kidney, and brain issues. This report details the first mutation-proven case in India, confirmed by genetic analysis in a young patient.
Area of Science:
- Genetics
- Biochemistry
- Pediatrics
Background:
- Carbonic anhydrase II (CA II) deficiency is an extremely rare autosomal recessive disorder.
- It is characterized by a triad of osteopetrosis, renal tubular acidosis, and cerebral calcifications.
Observation:
- A 12-year-old boy presented with classical features of CA II deficiency.
- Genetic analysis revealed he was homozygous for a mutation in the CA II gene.
Findings:
- The patient's parents were found to be heterozygous for the same CA II gene mutation.
- This confirms the autosomal recessive inheritance pattern in this case.
Implications:
- This is the first reported case of mutation-proven CA II deficiency from India.
- Highlights the importance of genetic confirmation in diagnosing rare disorders.
- Contributes to the understanding of CA II deficiency prevalence and genetic basis in diverse populations.
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