17 examples of genetically controlled variation of LDH have been encountered in a survey of 1331 Indian blood samples collected in Calcutta and Madras. 15 of the variants (10 in Calcutta and 5 in Madras) were identical and have been given the trivial name ‘Calcutta-1’. The other 2 examples were found in Madras and have been called ‘Madras-1’. ‘Calcutta-1’ is an A-subunit variant, whilst ‘Madras-1’ is a B-subunit variant. The overall frequency of LDH variants in India (1.28 per cent) is among the highest reported for any population in the world.
KeywordsInternal Medicine Blood Sample Metabolic Disease Indian Blood
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