| PDDR | pseudovitamin D-dependent rickets |
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| pseudovitamin | <biochemistry> A substance having a chemical structure very similar to that of a given vitamin, but lacking the usual physiologic action. (05 Mar 2000) |
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| pseudovitamin B12 | <biochemistry> Cobamide cyanide phosphate, 3'-ester with 7-alpha-d-ribofuranosyladenine, inner salt; vitamin B12 with adenine replacing dimethylbenzimidazole; one of several substances produced during anaerobic fermentation by certain organisms in bovine rumen contents; it is chemically closely similar to vitamin B12 (cyanocobalamin) but without, in humans, the physiologic action of the vitamin. (05 Mar 2000) |
| pseudovitamin Ddeficiency r. |
vitamin Ddependent r., type I; the term is sometimes used to denote types I and II collectively.
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