Anti-PP1PK aka Anti-Tja
Blood Group: P
Causes HDN: Yes
Critical Titer: 1:16
Information:Anti-PP1k antibody carries a high risk of repeated abortion during the first and second trimester [1, 3]. It can be treated with plasmapheresis, IVIG, IUTs and delivery at a set time [1, 2, 3, 4, 5, 7]. IVIG begun at 6 weeks and continued to 30 weeks led to an infant that was not anemic . In another case, IVIG was begun at 8 weeks . Anti-PP1Pk is known to cause growth retardation [2, 3,].
6 - https://www.ncbi.nlm.nih.gov/pubmed/3824479