Napredna pretraga

Pregled bibliografske jedinice broj: 397970

Inhibition of methyldigoxin-induced arrhythmias by pentadecapeptide BPC 157 : A relation with NO-system


Balenović, Dijana; Lovrić Benčić, Martina; Udovičić, Mario; Simonji, Karol; Šeparović Hanževački, Jadranka; Barišić, Ivan; Kranjčević, Stjepan; Prkačin, Ingrid; Čorić, Vedran; Brčić, Luka et al.
Inhibition of methyldigoxin-induced arrhythmias by pentadecapeptide BPC 157 : A relation with NO-system // Regulatory peptides, 156 (2009), 1/3; 83-89 doi:10.1016/j.regpep.2009.05.008 (međunarodna recenzija, članak, znanstveni)


Naslov
Inhibition of methyldigoxin-induced arrhythmias by pentadecapeptide BPC 157 : A relation with NO-system

Autori
Balenović, Dijana ; Lovrić Benčić, Martina ; Udovičić, Mario ; Simonji, Karol ; Šeparović Hanževački, Jadranka ; Barišić, Ivan ; Kranjčević, Stjepan ; Prkačin, Ingrid ; Čorić, Vedran ; Brčić, Luka ; Ćorić, Marijana ; Brčić, Iva ; Borović, Suzana ; Radić, Božo ; Drmić, Domagoj ; Vrčić, Hrvoje ; Seiwerth, Sven ; Sikirić, Predrag

Izvornik
Regulatory peptides (0167-0115) 156 (2009), 1/3; 83-89

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Pentadecapeptide BPC 157; methyldigoxin arrhythmias; L-NAME; L-arginine; rats

Sažetak
Pentadecapeptide BPC 157 (GEPPPGKPADDAGLV, MW 1419) reversed congestive heart failure and various arrhythmias, influenced the NO-system and showed no proarrhythmic effect. In therapy analogy, we challenged rats with digitalis, to show attenuation by BPC 157 and the relation between the NO-system and digitalis toxicity. (i). BPC 157 prophylactic effect. Development of cumulative intravenous digitalis toxicity. BPC 157 (50 microg, 10 microg, 10 ng/kg applied intravenously immediately before a methyldigoxin increment regimen (2.0/1.5/1.5/1.0 mg/kg at 15 min-intervals, total dose 6.0 mg/kg/45 min)) reduced the number of ventricular premature beats, prolonged the time before onset of ventricular tachycardia, reduced ventricular tachycardia and AV-block duration (microg-regimes) or reduced mainly the AV-block duration (ng-regimen). (ii). BPC 157 therapy. Advanced methyldigoxin toxicity (6.0 mg/kg i.v. bolus). BPC 157 applied at the 20th second of the grade 3 AV-block shortened AV-blocks, mitigated a further digitalis toxicity course. Ventricular tachycardias were either avoided (50 microg), or markedly reduced (10 microg, 10 ng). Fatal outcome was either avoided (50 microg), reduced (10 microg), or only delayed (10 ng).(iii) BPC 157, L-NAME, L-arginine, L-NAME+L-arginine application. L-NAME-application (5 mg/kg i.p.) aggravated methyldigoxin-arrhythmias. L-arginine (200 mg/kg i.p.) alone had no effect but blunted L-NAME-exaggeration (L-NAME+L-arginine). In this respect, BPC 157 (50 microg/kg i.p.) was prophylactically and therapeutically more effective: the antagonism of L-NAME with BPC 157 produced an effect similar to BPC 157 alone. In conclusion, digitalis-induced arrhythmias in rats could be prevented and counteracted by pentadecapeptide BPC 157, mainly through an interaction with the NO-system.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne medicinske znanosti



POVEZANOST RADA


Projekt / tema
108-0532264-0048 - Hepatocelularni tumori (Marijana Ćorić, )
108-1081875-1927 - Zatajivanje srca u Hrvatskoj (Ivo Čikeš, )
108-1081875-1991 - Doppler miokarda u ranom otkrivanju i praćenju kardiovaskularnih bolesti (Jadranka Šeparović-Hanževački, )
108-1083570-3635 - Pentadekapeptid BPC 157 - daljnja istraživanja (Predrag Sikirić, )
108-1083570-3643 - Kvantitativna analiza i prijenos slike u patologiji (Sven Seiwerth, )

Ustanove
Medicinski fakultet, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Citati