Bundle Branch Reentry Tachycardia and Possible Sustained Interfascicular Reentry Tachycardia with a Shared Unusual Induction Pattern

Bundle branch reentry ventricular tachycardia, a unique form of reentrant ventricular tachycardia involving the His–Purkinje system, occurs in patients with cardiomyopathy and His–Purkinje conduction disease. It responds poorly to pharmacological therapy and can be cured effectively with catheter ablation. However, even after ablation, patients may remain at risk for total mortality and sudden cardiac death and may require further therapies including cardiac resynchronization therapy defibrillators.

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142 Novel approach for radiofrequency catheter ablation of AV nodal reentry tachycardia

EP Europace ◽

10.1016/s1099-5129(05)80060-1 ◽

2005 ◽

Vol 7 ◽

pp. 21-22

Keyword(s):

Catheter Ablation ◽

Radiofrequency Catheter Ablation ◽

Novel Approach ◽

Reentry Tachycardia

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247 Propagation Mapping (PM) in Atrioventricular Nodal Reentry Tachycardia to Identify Wave Collision (WC) and Its Proximity to Successful site of Ablation

Heart Lung and Circulation ◽

10.1016/j.hlc.2020.09.254 ◽

2020 ◽

Vol 29 ◽

pp. S144

Author(s):

S. Naumann ◽

J. Lindemann ◽

K. Guppy-Coles ◽

P. Martin

Keyword(s):

Atrioventricular Nodal Reentry Tachycardia ◽

Wave Collision ◽

Reentry Tachycardia

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Induction of the Maize GapC4 Promoter in Transgenic Potato under Anaerobiosis and in Erwinia carotovora-Inoculated Tuber Tissue

Molecular Plant-Microbe Interactions ◽

10.1094/mpmi.1999.12.3.182 ◽

1999 ◽

Vol 12 (3) ◽

pp. 182-188 ◽

Cited By ~ 5

Author(s):

Lorenz Bülow ◽

Uwe Köhler ◽

Rüdiger Cerff ◽

Reinhard Hehl ◽

Klaus Düring

Keyword(s):

Experimental System ◽

Erwinia Carotovora ◽

Transgenic Potato ◽

Intact Tissue ◽

Induction Pattern ◽

Pectolytic Enzymes ◽

Genes Encoding ◽

Live Bacteria ◽

Foreign Genes ◽

High Level

The induction pattern of the GapC4 promoter from maize in transgenic potato has been analyzed by fusion to the β-glucuronidase (gus) gene. Under anaerobic conditions this promoter confers high level expression not only in leaves, stems, and roots but also in tubers. After inoculation of potato tuber disks with Erwinia carotovora subsp. atroseptica, β-glucuronidase (GUS) activity could be detected in macerated tissue as well as in surrounding intact tissue. In mock controls no induction was detected, ruling out any induction due to an overall limitation in oxygen in the experimental system. In addition, it could be proven that no diffusion of GUS protein from macerated into intact tissue occurred. The promoter was shown to be aerobically induced even in the absence of live bacteria by incubation with purified Erwinia spp. pectolytic enzymes alone. Therefore, promoter induction seems to be mediated by a mobile factor instead of by limitation in oxygen. These results demonstrate that the maize GapC4 promoter is suitable for directing foreign genes encoding antibacterial proteins in transgenic potato.

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