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001-es BibID:	BIBFORM115804
035-os BibID:	(cikkazonosító)2970 (WoS)001120943600001 (Scopus)85178374983
Első szerző:	Al-Smadi, Mohammad Walid
Cím:	A Microsurgical Arteriovenous Malformation Model on Saphenous Vessels in the Rat / Mohammad Walid Al-Smadi, Laszlo Adam Fazekas, Siran Aslan, Brigitta Bernat, Anas Beqain, Mustafa Qais Muhsin Al-Khafaji, Daniel Priksz, Brigitta Orlik, Norbert Nemeth
Dátum:	2023
ISSN:	2227-9059
Megjegyzések:	Arteriovenous malformation (AVM) is an anomaly of blood vessel formation. Numerous models have been established to understand the nature of AVM. These models have limitations in terms of the diameter of the vessels used and the impact on the circulatory system. Our goal was to establish an AVM model that does not cause prompt and significant hemodynamic and cardiac alterations but is feasible for follow-up of the AVM's progression. Sixteen female rats were randomly divided into sham-operated and AVM groups. In the AVM group, the saphenous vein and artery were interconnected using microsurgical techniques. The animals were followed up for 12 weeks. Anastomosis patency and the structural and hemodynamic changes of the heart were monitored. The hearts and vessels were histologically analyzed. During the follow-up period, shunts remained unobstructed. Systolic, diastolic, mean arterial pressure, and heart rate values slightly and non-significantly decreased in the AVM group. Echocardiogram results indicated minor systolic function impact, with slight and insignificant changes in aortic pressure and blood velocity, and minimal left ventricular wall enlargement. The small-caliber saphenous AVM model does not cause acute hemodynamic changes. Moderate but progressive alterations and venous dilatation confirmed AVM-like features. The model seems to be suitable for studying further the progression, enlargement, or destabilization of AVM.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Biomedicines. - 11 : 11 (2023), p. 1-14. -
További szerzők:	Fazekas László Aslan, Siran Bernát Brigitta (1997-) (farmakológus) Beqain, Anas Al-Khafaji, Mustafa Qais Muhsin Priksz Dániel (1989-) (farmakológus) Orlik Brigitta Németh Norbert (1975-) (kutatóorvos)
Pályázati támogatás:	NKFI-1 "OTKA" K-139184 OTKA UNKP-22-3-I-DE-344 UNKP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM109368
035-os BibID:	(cikkazonosító)359 (Scopus)85152371525 (WoS)000959873600001
Első szerző:	Bernát Brigitta (farmakológus)
Cím:	Drug Candidate BGP-15 Prevents Isoproterenol-Induced Arrhythmias and Alters Heart Rate Variability (HRV) in Telemetry-Implanted Rats / Bernat Brigitta, Erdelyi Rita, Fazekas Laszlo, Garami Greta, Szekeres Reka Maria, Takacs Barbara, Bombicz Mariann, Varga Balazs, Sarkany Fruzsina, Raduly Arnold Peter, Romanescu Dana Diana, Papp Zoltan, Toth Attila, Szilvassy Zoltan, Juhasz Bela, Priksz Daniel
Dátum:	2023
ISSN:	1424-8247
Megjegyzések:	Multi-target drug candidate BGP-15 has shown cardioprotective and antiarrhythmic actions in diseased models. Here, we investigated the effects of BGP-15 on ECG and echocardiographic parameters, heart rate variability (HRV), and arrhythmia incidence in telemetry-implanted rats, under beta-adrenergic stimulation by isoproterenol (ISO). In total, 40 rats were implanted with radiotelemetry transmitters. First, dose escalation studies (40?160 mg/kg BGP-15), ECG parameters, and 24 h HRV parameters were assessed. After, rats were divided into Control, Control+BGP-15, ISO, and ISO+BGP-15 subgroups for 2 weeks. ECG recordings were obtained from conscious rats, arrhythmias and HRV parameters were assessed, and echocardiography was carried out. ISO-BGP-15 interaction was also evaluated on an isolated canine cardiomyocyte model. BGP-15 had no observable effects on the ECG waveforms; however, it decreased heart rate. HRV monitoring showed that BGP-15 increased RMSSD, SD1, and HF% parameters. BGP-15 failed to counteract 1 mg/kg ISO-induced tachycardia, but diminished the ECG of ischemia and suppressed ventricular arrhythmia incidence. Under echocardiography, after low-dose ISO injection, BGP-15 administration lowered HR and atrial velocities, and increased end-diastolic volume and ventricle relaxation, but did not counteract the positive inotropic effects of ISO. Two weeks of BGP-15 treatment also improved diastolic function in ISO-treated rats. In isolated cardiomyocytes, BGP-15 prevented 100 nM ISO-induced aftercontractions. Here, we show that BGP-15 increases vagally mediated HRV, reduces arrhythmogenesis, enhances left ventricle relaxation, and suppresses the aftercontractions of cardiomyocytes. As the drug is well tolerated, it may have a clinical value in preventing fatal arrhythmias.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk BGP-15 telemetry arrhythmia heart rate variability isoproterenol echocardiography
Megjelenés:	Pharmaceuticals. - 16 : 3 (2023), p. 1-22. -
További szerzők:	Erdélyi Rita Fazekas László Garami Gréta Szekeres Réka (1995-) (orvos) Takács Barbara (1992-) (orvos) Bombicz Mariann (1987-) (gyógyszerész) Varga Balázs (1984-) (kísérletes farmakológus) Sárkány Fruzsina (1996-) (orvos) Ráduly Arnold Péter (1993-) Romanescu, Dana Diana Papp Zoltán (1965-) (kardiológus, élettanász) Tóth Attila (1971-) (biológus) Szilvássy Zoltán (1957-) (belgyógyász, farmakológus, klinikai farmakológus) Juhász Béla (1978-) (kísérletes farmakológus) Priksz Dániel (1989-) (farmakológus)
Pályázati támogatás:	GINOP-2.3.4-15-2020-00008 GINOP TKP2020-NKA-04 Egyéb ÚNKP-21-2-I-DE-392 Egyéb
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