Human Thyroid Peroxidase Antigen

Objective To determine whether using 12.5 degrees Slocum-like triple pelvic osteotomy (TPO) plates would create sufficient femoral head coverage and lower the occurrence of overrotation compared with using 20 degrees TPO plates in dogs with hip dysplasia. Study design Prospective clinical study. Sample population Thirty-five dogs with hip dysplasia (38 hips). Methods Nineteen hips were surgically treated with a custom-made Slocum-type 12.5 degrees TPO plate, and these were matched to 19 hips surgically treated with a 20 degrees commercial Slocum TPO plate. Hips were case matched according to size and breed. Ortolani sign, angles of subluxation and reduction, distraction index, and femoral head coverage (FHC) were compared between groups. Excessive coverage was defined as >80%. Results In the 12.5 degrees group, FHC was >= 50% in all hips, with mean FHC (67%), gain (37%), and excessive coverage (11%) all significantly less than in the 20 degrees group (79%, 54%, and 42%, respectively). Conclusion The 12.5 degrees plate produced sufficient FHC compared with the 20 degrees plate, with fewer hips with excessive coverage. Clinical significance The 12.5 degrees TPO plate may result in sufficient FHC with a lower occurrence of excessive coverage compared with 20 degrees plates.

Multifactorial mechanisms leading to diminished platelet counts in immune thrombocytopaenia (ITP) might condition the ability of patients with ITP to respond to treatments. Examining their platelet and immune features, we aimed to detect singular characteristics of patients with ITP who do not respond to any treatment. We studied patients with chronic primary ITP who had been without treatment, or untreated (UT-ITP), for at least six months; included were responders to agonists of thrombopoietin receptors (TPO-RA), patients who showed no response to first- and second-line treatments (NR-ITP), and healthy controls. Platelets from NR-ITP patients exposed a reduced amount of sialic acid residues. Increased loss of platelet surface sialic acid residues was associated with increased platelet apoptosis. NR-ITP patients had an increased fraction of naive lymphocyte (L) B cells and a reduced LTreg (Lymphocyte T-regulator) subset. They also presented an anomalous monocyte and NK (Natural Killer) cells distribution. TPO-RA-treated patients seemed to recover an immune homeostasis similar to healthy controls. In conclusion, our results indicate a severe deregulation of the immune system of NR-ITP. The inverse correlation between loss of sialic acid and LTreg count suggests a potential relationship between glycan composition on the platelet surface and immune response, positing terminal sugar moieties of the glycan chains as aetiopathogenic agents in ITP.