heya shye, 58 in what units? nmol/L i presume?
i can't find anything that has a sort of introductory blurb on d3 receptors. it's kind of why i never really bothered to try and understand them in the early days of my reading on vitamin d3.
nonetheless, here are a couple links...
The Role of the Vitamin D Receptor in Regulating Vitamin D Metabolism: A Study of Vitamin D-Dependent Rickets, Type II
what happened, and you can read all about it under the Orthomolecular Biochemistry topic under Regimens, was that i figured out i had a zinc deficiency first. then i fixed it.
then i realized that my uric acid had suddenly normalized too.
then i had a d3 test. did 'the usual' d3 megadose. did not have 'the usual' response. was expecting to go from 103 to 150 nmol/L or thereabouts. instead went to 271!
i don't know if it makes sense to associate the vitamin d3 receptor's zinc finger with this change in my dose response. i can't find any studies where they have measured dose response to d3, in zinc replete and zinc deficient subjects.
even so, it makes sense to me that somehow, fixing that zinc deficiency altered my body's response to d3 intake.
as i said, i have yet to get my hands on research that will back up my suspicions. let's keep hunting together ;D