The only tests where Pitpnm1 null mice show a difference from the wildtype are the plasma chemistry tests, where male homozygotes showed a decreased circulating cholesterol level and hypocalcaemia (http://www.sanger.ac.uk/mouseportal/phenotyping/MCTJ/plasma-chemistry/), and the haematology test, where female homozygotes show a decrease in leucocyte cell number (http://www.sanger.ac.uk/mouseportal/phenotyping/MCTJ/haematology-cbc/). This evidence concerns the gene PITPNM1 and Hypocalcemia.