personalised medicine: transplantation Flashcards
What has made renal transplantation possible?
immunosuppresants as a long term therapy
Why are immunosuppressants needed?
immune response to non self organ bc of HLA tissue type match.
What are the two types of graft rejection?
1)chronic which is gradual and the time of onset/rate of progression varies but ultimately the graft is rejected 2)Acute which is most frequently observed within weeks and is reversible
What is the problem with immunosuppressant dosing?
‘dose adjusted according to response’ - little attention paid to patient factors
What is TPMT?
Thiopurine methyl transferase - metabolises azathiprone (one of the immunosuppressants)
What is the effect of TPMT deficiency?
profound BM suppression leading to opportunistic infections, sepsis and death and GI effects - nausea, vomming and poor liver
We can genotype TPMT deficiency
yayy
What does detecting TPMT deficiency mean?
allows tailoring of azathiprine dose, lower rates of ADRs
What are 6 probs with long term immunosuppression?
1)infection 2)cancer 3)CVD 4)recurrent disease 5)toxicity 6)hirsutism