Quantum Mechanical Study and Nuclear Magnetic Resonance Measurements of Some α-Arylcarboxyalkyl Acids as Anti-inflammatory Agents

Percutaneous closure of perimembranous ventricular septal defects (VSDs) has been feasible, safe, and effective with the new Amplatzer membranous septal occluder. We report further experience with this device with emphasis on morphological aspects of the VSDs and technical issues. Ten patients (median age and weight, 14 years and 34.5 kg, respectively) with volume-overloaded left ventricles underwent closure under general anesthesia and transesophageal guidance (TEE). The VSD diameter was 7.1 +/- 4.0 mm by angiography and 7.8 +/- 3.7 mm by TEE. Three patients had defects associated with aneurysm-like formations (two with multiple exit holes), four had defects shrouded by extensive tricuspid valve tissue, two had defects with little or no tricuspid valve involvement, and one had a right aortic cusp prolapse with trivial aortic regurgitation. Implantation was successful in all patients, although in two the initial device had to be changed for a larger one. Kinkings in the delivery sheath, inability to position the sheath near the left ventricular apex, and device prolapse through the VSD prompted modifications in the standard technique of implantation. Device orientation was excellent except in one case. Nine patients had complete occlusion within 1-3 months. Device-related aortic or tricuspid insufficiency, arrhythmias, and embolization were not observed. Two patients had slight gradients across the left ventricular outflow tract, normalizing after 3 months. The Amplatzer membranous septal occluder was suitable to close a wide range of perimembranous VSD sizes and morphologies with good short-term outcomes. Longer follow-up is required.

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“…In Refs. 10–12, the calculations were repeated on 12 aryl‐propionic acids, but now with the AM1 method with full geometry optimization. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Percutaneous closure of perimembranous ventricular septal defects with the Amplatzer device: Technical and morphological considerations

Pedra

Esteves

et al. 2004

Cathet Cardio Intervent

136

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The Medicinal Chemistry of Ibuprofen

Nichol¹,

Allen

2015

Ibuprofen

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Ab initio structural study of some substituted ibuprofen derivatives as possible anti‐inflammatory agents

Villa¹,

Bounaim²,

Smeyers³

et al. 2003

Int J of Quantum Chemistry

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ABSTRACT:The formation energies of a series of substituted derivatives in ␣-position of ibuprofen (2-p-isobutyl-phenyl-propionic acid) are determined, at the ab initio level RHF/6-311G** with full geometry optimization, in their neutral and anionic forms and in the gas phase and water solution to correlate their physical-chemical properties with their anti-inflammatory activity. Conformational calculations on the acidic moiety were also performed on five of them. The ab initio methods foresee that all these molecules present two preferred conformations in which the substituting atom in ␣-position is lying approximately in the aromatic ring plane, in contrast with the results obtained with semiempirical methods. In this article, the protonation energy in solution, the solvation energy, the HOMO energy of the neutral form, and the lipophilicity will be considered as possible factors of anti-inflammatory activity. The protonation energy in solution, together with the lipophilicity, are verified to be good activity factors: The smaller the protonation energy and the lipophilicity, the larger the anti-inflammatory activity. In contrast, the larger the solvation energy, the smaller the activity.

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Quantum Mechanical Study and Nuclear Magnetic Resonance Measurements of Some α-Arylcarboxyalkyl Acids as Anti-inflammatory Agents

Cited by 7 publications

References 8 publications

Percutaneous closure of perimembranous ventricular septal defects with the Amplatzer device: Technical and morphological considerations

Percutaneous closure of perimembranous ventricular septal defects with the Amplatzer device: Technical and morphological considerations

The Medicinal Chemistry of Ibuprofen

Ab initio structural study of some substituted ibuprofen derivatives as possible anti‐inflammatory agents

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