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Abstract Title:

N,N-dimethyltryptamine Prevents Renal Ischemia-Reperfusion Injury in a Rat Model.

Abstract Source:

Transplant Proc. 2019 May ;51(4):1268-1275. PMID: 31101212

Abstract Author(s):

Balázs Nemes, Katalin Pető, Norbert Németh, Anita Mester, Zsuzsanna Magyar, Souleiman Ghanem, Viktória Sógor, Bence Tánczos, Ádám Deák, Márk Kállay, László Bidiga, Ede Frecska

Article Affiliation:

Balázs Nemes

Abstract:

BACKGROUND: Ischemia reperfusion (I/R) injury remains one of the most challenging fields of organ transplantation. It is highly associated with the use of expanded criteria donors that might conclude to delayed graft function or early or late graft failure.

OBJECTIVE: To investigate the metabolic, microcirculatory parameters, and histologic changes under the effect of N,N-dimethyltryptamine (DMT) in a renal I/R model in rats.

METHOD: In 26 anesthetized rats both kidneys were exposed. In the control group (n = 6) no other intervention happened. In 20 other animals, the right renal vessels were ligated, and after 60 minutes the right kidney was removed. The left renal vessels were clamped for 60 minutes then released, followed by 120 minutes of reperfusion. In the I/R group (n = 10), there was no additive treatment, while in I/R + DMT group (n = 10) DMT was administered 15 minutes before ischemia. Blood samples were taken, laser Doppler measurement was performed, and both kidneys were evaluated histologically.

RESULTS: Microcirculation (blood flux units [BFU]) diminished in all groups, but remarkably so in the I/R + DMT group. This group compensated better after the 30th minute of reperfusion. The control and I/R + DMT groups had similar BFUs after 120 minutes of reperfusion, but in the I/R group BFU was higher. Tubular necrosis developed in the I/R and I/R + DMT groups too; it was moderated under DMT effect, and severe without. Histologic injuries were less in I/R + DMT Group compared to non-treated animals.

CONCLUSION: Histologic changes characteristic to I/R injuries were reversible and microcirculation recovered at the end of 120 minutes reperfusion under the administration of DMT. DMT can be used for renoprotection in kidney transplantation.

Study Type : Animal Study
Additional Links
Pharmacological Actions : Renoprotective : CK(1308) : AC(593)

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