Serum concentrations of calcium and vitamin D metabolites in prosimians.
The concentrations of total calcium, 25-hydroxyvitamin D [25-(OH)D] and 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3] were measured in serum obtained from prosimians, the brown lemurs. The mean serum calcium level was 10.6 mg/dl in male and female lemurs. The mean serum mean 25-(OH)D concentration in serum from male and female lemurs was 27.1 and 31.0 ng/ml, respectively. The mean serum level of 1,25-(OH)2D3 in the female and male lemurs was 65.2 and 65.9 pg/ml, respectively. A small segment of the lemurs had hypercalcemia and elevated serum concentrations of 25-(OH)D or 1,25-(OH)2D3, suggesting the idea that the episodic ingestion of a large quantity of the calcium- and vitamin D-enriched diet normally provided ad libitum might cause hypercalcemia.
D000818:Animals; D002118:Calcium / Q000097:blood*; D005260:Female; D006887:Hydroxycholecalciferols / Q000097:blood*; D007900:Lemur / Q000097:blood*; D007901:Lemuridae / Q000097:blood*; D008297:Male; D011443:Strepsirhini / Q000378:metabolism*
D006887:Hydroxycholecalciferols; D002118:Calcium