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Borgarelli M, Ferasin L, Lamb K, Chiavegato D, Bussadori C, D'Agnolo G, Migliorini F, Poggi M, Santilli RA, Guillot E, Garelli-Paar C, Toschi Corneliani R, Farina F, Zani A, Dirven M, Smets P, Guglielmini C, Oliveira P, Di Marcello M, Porciello F, Crosara S, Ciaramella P, Piantedosi D, Smith S, Vannini S, Dall'Aglio E, Savarino P, Quintavalla C, Patteson M, Silva J, Locatelli C, Baron Toaldo M. The predictive value of clinical, radiographic, echocardiographic variables and cardiac biomarkers for assessing risk of the onset of heart failure or cardiac death in dogs with preclinical myxomatous mitral valve disease enrolled in the DELAY study. J Vet Cardiol 2021; 36:77-88. [PMID: 34118562 DOI: 10.1016/j.jvc.2021.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 11/17/2022]
Abstract
OBJECTIVES To identify the predictive value on time to onset of heart failure (HF) or cardiac death of clinical, radiographic, and echocardiographic variables, as well as cardiac biomarkers N-terminal pro brain natriuretic peptide (NT-proBNP) and cardiac troponin I in dogs with preclinical myxomatous mitral valve disease (MMVD). ANIMALS One hundred sixty-eight dogs with preclinical MMVD and left atrium to aortic root ratio ≥1.6 (LA:Ao) and normalized left ventricular end-diastolic diameter ≥1.7 were included. METHODS Prospective, randomized, multicenter, single-blinded, placebo-controlled study. Clinical, radiographic, echocardiographic variables and plasma cardiac biomarkers concentrations were compared at different time points. Using receiving operating curves analysis, best cutoff for selected variables was identified and the risk to develop the study endpoint at six-month intervals was calculated. RESULTS Left atrial to aortic root ratio >2.1 (hazard ratio [HR] 3.2, 95% confidence interval [95% CI] 1.9-5.6), normalized left ventricular end-diastolic diameter > 1.9 (HR: 6.3; 95% CI: 3.3-11.8), early transmitral peak velocity (E peak) > 1 m/sec (HR: 3.9; 95% CI: 2.3-6.7), and NT-proBNP > 1500 ρmol/L (HR: 5.7; 95% CI: 3.3-9.5) were associated with increased risk of HF or cardiac death. The best fit model to predict the risk to reach the endpoint was represented by the plasma NT-proBNP concentrations adjusted for LA:Ao and E peak. CONCLUSIONS Logistic and survival models including echocardiographic variables and NT-proBNP can be used to identify dogs with preclinical MMVD at higher risk to develop HF or cardiac death.
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Affiliation(s)
- M Borgarelli
- Department Small Animal Clinical Science, Virginia Maryland College of Veterinary Medicine, Blacksburg, VA, USA.
| | - L Ferasin
- Specialist Veterinary Cardiology Consultancy Ltd, Alton, Hampshire, UK
| | - K Lamb
- Lamb Statiscal Consulting and Scientific Writing LLC, West St. Paul, MN, USA
| | | | - C Bussadori
- Clinica Veterinaria Gran Sasso, Milan, Italy
| | | | | | - M Poggi
- Centro Veterinario Imperiese, Imperia, Italy
| | - R A Santilli
- Clinica Veterinaria Malpensa, Samarate Varese, Italy
| | - E Guillot
- Ceva Santé Animale, Libourne, France
| | | | | | - F Farina
- Ambulatorio Veterinario del Parco Margherita, Naples, Italy
| | - A Zani
- Clinica Cardiovet, Livorno, Italy
| | - M Dirven
- Dierenkliniek Rijen, Rijen, the Netherlands
| | - P Smets
- Dierenkliniek Rijen, Rijen, the Netherlands
| | - C Guglielmini
- Dipartimento di Medicina Animale, Produzione e Salute, Università di Padova, Legnaro, Padova, Italy
| | - P Oliveira
- Davies Veterinary Specialists Ltd, Higham Gobion, Hertfordshire, UK
| | - M Di Marcello
- Centro Veterinario Cellatica, Cellatica, Brescia, Italy
| | - F Porciello
- Dipartimento di Medicina Veterinaria, Università degli Studi di Perugia, Perugia, Italy
| | - S Crosara
- Clinica Veterinaria CMV, Varese, Italy
| | - P Ciaramella
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli Federico II, Naples, Italy
| | - D Piantedosi
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Università degli Studi di Napoli Federico II, Naples, Italy
| | - S Smith
- Sarah Smith Cardiology Ivy Court, Willington, UK
| | - S Vannini
- Clinica Veterinaria Gran Sasso, Milan, Italy
| | - E Dall'Aglio
- Clinica Veterinaria Milano Sud, Peschiera Borromeo, Milano, Italy
| | - P Savarino
- Facoltà di Medicina Veterinaria di Torino, Ospedale Didattico Veterinario della Facoltà, Sezione Clinica Medica, Grugliasco, Turin, Italy
| | - C Quintavalla
- Dipartimento di Scienze Mediche Veterinarie, Università di Parma, Parma, Italy
| | - M Patteson
- Heartvets, The Animal Hospital Stinchcombe, Dursley, UK
| | - J Silva
- Clinica Veterinaria Gran Sasso, Milan, Italy
| | - C Locatelli
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
| | - M Baron Toaldo
- Dipartimento di Scienze Mediche Veterinarie, Alma Mayor Studiorum, Università di Bologna, Ozzano Emilia, Italy
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Borgarelli M, Ferasin L, Lamb K, Bussadori C, Chiavegato D, D'Agnolo G, Migliorini F, Poggi M, Santilli RA, Guillot E, Garelli-Paar C, Toschi Corneliani R, Farina F, Zani A, Dirven M, Smets P, Guglielmini C, Oliveira P, Di Marcello M, Porciello F, Crosara S, Ciaramella P, Piantedosi D, Smith S, Vannini S, Dall'Aglio E, Savarino P, Quintavalla C, Patteson M, Silva J, Locatelli C, Baron Toaldo M. DELay of Appearance of sYmptoms of Canine Degenerative Mitral Valve Disease Treated with Spironolactone and Benazepril: the DELAY Study. J Vet Cardiol 2020; 27:34-53. [PMID: 32032923 DOI: 10.1016/j.jvc.2019.12.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Efficacy of renin-angiotensin-aldosterone system (RAAS) blockade using angiotensin-converting enzyme inhibitors (ACEi) in dogs with preclinical myxomatous mitral valve disease (MMVD) is controversial. HYPOTHESIS Administration of spironolactone (2-4 mg q 24 h) and benazepril (0.25-0.5 mg q 24 h) in dogs with preclinical MMVD, not receiving any other cardiac medications, delays the onset of heart failure (HF) and cardiac-related death. Moreover, it reduces the progression of the disease as indicated by echocardiographic parameters and level of cardiac biomarkers N-terminal pro brain natriuretic peptide (NT-proBNP) and cardiac troponin I (cTnI). ANIMALS 184 dogs with pre-clinical MMVD and left atrium-to-aortic root ratio (LA:Ao) ≥1.6 and normalized left ventricular end-diastolic diameter (LVEDDn) ≥1.7. METHODS This is a prospective, randomized, multicenter, single-blinded, placebo-controlled study. Primary outcome variable was time-to-onset of first occurrence of HF or cardiac death. Secondary end points included effect of treatment on progression of the disease based on echocardiographic and radiographic parameters, as well as variations of NT-proBNP and cTnI concentrations. RESULTS The median time to primary end point was 902 days (95% confidence interval (CI) 682-not available) for the treatment group and 1139 days (95% CI 732-NA) for the control group (p = 0.45). Vertebral heart score (p = 0.05), LA:Ao (p < 0.001), LVEDDn (p < 0.001), trans-mitral E peak velocity (p = 0.011), and NT-proBNP (p = 0.037) were lower at the end of study in the treatment group. CONCLUSIONS This study failed in demonstrating that combined administration of spironolactone and benazepril delays onset of HF in dogs with preclinical MMVD. However, such treatment induces beneficial effects on cardiac remodeling and these results could be of clinical relevance.
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Affiliation(s)
- M Borgarelli
- Department Small Animal Clinical Science, Virginia Maryland College of Veterinary Medicine, Blacksburg, VA, USA.
| | - L Ferasin
- Lumbry Park Veterinary Specialists, Alton, Hampshire, UK
| | - K Lamb
- Lamb Statiscal Consulting and Scientific Writing LLC, West St. Paul, MN, USA
| | - C Bussadori
- Clinica Veterinaria Gran Sasso, Milan, Italy
| | | | | | | | - M Poggi
- Centro Veterinario Imperiese, Imperia, Italy
| | - R A Santilli
- Clinica Veterinaria Malpensa, Samarate Varese, Italy
| | - E Guillot
- Ceva Santé Animale, Libourne, France
| | | | | | - F Farina
- Ambulatorio Veterinario Del Parco Margherita, Naples, Italy
| | - A Zani
- Clinica Cardiovet, Livorno, Italy
| | - M Dirven
- Dierenkliniek Rijen, Rijen the Netherlands
| | - P Smets
- Dierenkliniek Rijen, Rijen the Netherlands
| | - C Guglielmini
- Dipartimento di Medicina Animale, Produzione e Salute, Università di Padova, Legnaro Padova, Italy
| | - P Oliveira
- Davies Veterinary Specialists Ltd, Higham Gobion, Hertfordshire, UK
| | - M Di Marcello
- Centro Veterinario Cellatica, Cellatica, Brescia, Italy
| | - F Porciello
- Dipartimento di Medicina Veterinaria, Università Degli Studi di Perugia, Perugia, Italy
| | - S Crosara
- Clinica Veterinaria CMV, Varese, Italy
| | - P Ciaramella
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Università Degli Studi di Napoli Federico II, Naples, Italy
| | - D Piantedosi
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Università Degli Studi di Napoli Federico II, Naples, Italy
| | - S Smith
- Sarah Smith Cardiology Ivy Court, Willington, UK
| | - S Vannini
- Clinica Veterinaria Gran Sasso, Milan, Italy
| | - E Dall'Aglio
- Clinica Veterinaria Milano Sud, Peschiera Borromeo, Milano, Italy
| | - P Savarino
- Facoltà di Medicina Veterinaria di Torino, Ospedale Didattico Veterinario Della Facoltà, Sezione Clinica Medica, Grugliasco, Turin, Italy
| | - C Quintavalla
- Dipartimento di Scienze Mediche Veterinarie, Università di Parma, Parma, Italy
| | - M Patteson
- Heartvets, The Animal Hospital Stinchcombe, Dursley, UK
| | - J Silva
- Clinica Veterinaria Gran Sasso, Milan, Italy
| | - C Locatelli
- Dipartimento di Medicina Veterinaria, Università Degli Studi di Milano, Milan, Italy
| | - M Baron Toaldo
- Dipartimento di Scienze Mediche Veterinarie, Alma Mayor Studiorum, Università di Bologna, Ozzano Emilia, Italy
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Savarino P, Borgarelli M, Tarducci A, Crosara S, Bello NM, Margiocco ML. Diagnostic performance of P wave duration in the identification of left atrial enlargement in dogs. J Small Anim Pract 2012; 53:267-72. [DOI: 10.1111/j.1748-5827.2012.01200.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Borgarelli M, Crosara S, Lamb K, Savarino P, La Rosa G, Tarducci A, Haggstrom J. Survival characteristics and prognostic variables of dogs with preclinical chronic degenerative mitral valve disease attributable to myxomatous degeneration. J Vet Intern Med 2011; 26:69-75. [PMID: 22211523 DOI: 10.1111/j.1939-1676.2011.00860.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Revised: 10/19/2011] [Accepted: 11/21/2011] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Preclinical myxomatous mitral valve degeneration (MMVD) includes a heterogeneous group of dogs. Therefore, identifying risk factors for progression of the disease is of clinical importance. OBJECTIVES To investigate survival time and risk factors for clinical and echocardiographic variables taken at initial examination for clinical progression in preclinical MMVD dogs. ANIMALS A total of 256 dogs with stage B1 or B2 MMVD. MATERIALS AND METHODS Medical records of 256 dogs with preclinical MMVD were reviewed retrospectively. Long-term outcome was assessed by telephone interview. Dogs alive at the time of phone interview were asked to return to the hospital for re-evaluation of their cardiac status. RESULTS Seventy of 256 (27.3%) dogs died during the observation period. The median survival time, regardless of cause of death, was 588 (range 75-1,668) days. The presence of a murmur was associated with an increased risk of death (AHR 2.14; 95% CI 1.12, 4.11; P = 0.022). Thirty (12%) deaths were considered cardiac related. LA/Ao > 1.4 was the only negative predictor (AHR 2.64; 1.13, 6.13; P = 0.024) for cardiac-related deaths. Eighty-three dogs were re-examined, of which 34 progressed to a more advanced stage of MMVD. The presence of Emax > 1.2 (AHR 2.75; 95% CI 1.01, 7.48; P = 0.047) and cough (AHR 7.89; 95% CI 3.18, 20.07; P < 0.001) were significant in the multivariate analysis. CONCLUSIONS AND CLINICAL IMPORTANCE Preclinical MMVD represents a relatively benign condition in dogs. Clinicians might find stratification of this dog population according to risk factors based on clinical and echocardiographic findings helpful in determining treatment.
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Affiliation(s)
- M Borgarelli
- Department of Clinical Sciences, Kansas State University, Manhattan, KS, USA.
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Savarino P, Barni E, Viscardi G, Carpignano R, Modica GD. Dyeing properties of monoazo disperse dyes derived from 4-alkylamidosalicylic acids: equilibrium study. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1478-4408.1988.tb01154.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Carpignano R, Savarino P, Barni E, Modica G, Papa SS. Developments in the Application of Quantitative Structure-Property Relationships of Dyes. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1478-4408.1985.tb01030.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Montoneri E, Savarino P, Quagliotto P, Adani F, Ricca G. Organosulphur Phosphorus Acid Compounds. Part 7. Preparation and Analytical Identification of Difluorobenzylphosphono-Sulfonic Acids. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426509808545455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- E. Montoneri
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
| | - P. Savarino
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
| | - P. Quagliotto
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
| | - F. Adani
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
| | - G. Ricca
- a Dipartimento di Chimica Generale , ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- b Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- c Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- d Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
- e Dipartimento di Chimica Generale ed Organica Applicata Universitá di Torino , Corso Massimo D'Azeglio 48–10125 Torino, Italy
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Borgarelli M, Savarino P, Crosara S, Santilli RA, Chiavegato D, Poggi M, Bellino C, La Rosa G, Zanatta R, Haggstrom J, Tarducci A. Survival Characteristics and Prognostic Variables of Dogs with Mitral Regurgitation Attributable to Myxomatous Valve Disease. J Vet Intern Med 2008; 22:120-8. [DOI: 10.1111/j.1939-1676.2007.0008.x] [Citation(s) in RCA: 232] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Montoneri E, Savarino P, Adani F, Genevini PL, Ricca G, Zanetti F, Paoletti S. Polyalkylphenyl-sulphonic acid with acid groups of variable strength from compost. Waste Manag 2003; 23:523-535. [PMID: 12909093 DOI: 10.1016/s0956-053x(02)00145-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The insoluble organic fraction (humin-like material, HLM) from rice hull-dairy cattle compost is well converted into water soluble HLM-sulphonate by reaction in liquid SO3. Microanalytical, potentiometric, molecular weight, and NMR data are consistent with a highly homogeneous polymeric arylsulphonate having 4000 Da MW, 1.3 sulphonic groups per aromatic ring and significant content of carboxylic and phenolic groups. By comparison with structure-property relationships for commercial lignosulphonates derived from the pulp and paper industry, the above arylsulphonate is likely to be a candidate at a variety of applications in the chemical industry and in agriculture. Therefore, sulphonation is a means for upgrading composts HLM to the same uses as for commercial lignosulphonates.
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Affiliation(s)
- E Montoneri
- Dipartimento di Chimica Generale ed Organica Applicata, Università di Torino, Corso Massimo D'Azeglio 48, 10125 Torino, Italy.
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Kalyanasundaram K, Colassis T, Humphry-Baker R, Savarino P, Barni E, Pelizzetti E, Graetzel M. Luminescence, charge-transfer complexes, and photoredox processes involving N-alkyl nicotinamide/dihydronicotinamide surfactants. J Am Chem Soc 2002. [DOI: 10.1021/ja00191a029] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Prevot AB, Baiocchi C, Brussino MC, Pramauro E, Savarino P, Augugliaro V, Marcì G, Palmisano L. Photocatalytic degradation of acid blue 80 in aqueous solutions containing TiO2 suspensions. Environ Sci Technol 2001; 35:971-976. [PMID: 11351544 DOI: 10.1021/es000162v] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The photocatalytic degradation of the anthraquinonic dye Acid Blue 80 in aqueous solutions containing TiO2 dispersions has been investigated. The process has been monitored by following either the disappearance of the dye (via HPLC) and the formation of its end-products (via IC, GC, and TOC analysis). Although a relatively fast decolorization of the solutions has been observed, the mineralization is slower, and the presence of residual organic compounds was evidenced even after long term irradiation, confirming the relevant stability of anthraquinone derivatives. The identification of various unstable intermediates formed after low irradiation times was performed by HPLC-MS, allowing us to give insight into the early steps of the degradation process which mainly involve C-N bonds breaking and substrate hydroxylation. Complete and relatively fast mineralization of the substrate was achieved by irradiating the semiconductor dispersions in the presence of added K2S2O8.
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Affiliation(s)
- A B Prevot
- Dipartimento di Chimica Analitica, Università di Torino, 10125 Torino, Italy
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Viscardi G, Quagliotto P, Barolo C, Savarino P, Barni E, Fisicaro E. Synthesis and surface and antimicrobial properties of novel cationic surfactants. J Org Chem 2000; 65:8197-203. [PMID: 11101373 DOI: 10.1021/jo0006425] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of surfactants with tuned polarity were prepared, including a new class of compounds: gluco-pyridinium surfactants. Pure anomers were obtained by chromatographic separation. The conductivity and surface tension of surfactant solutions in water were measured, and provided interesting information regarding their aggregation behavior. Peculiarities were observed in the premicellar range. Tensidic parameters correlated with antimicrobial activity. A few parameters, mainly the hydrophobicity of the headgroup, may play a role in finding more efficient antimicrobial structures.
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Affiliation(s)
- G Viscardi
- Dipartimento di Chimica Generale ed Organica Applicata, Università di Torino, C.so Massimo d'Azeglio 48, 10125 Torino, Italy
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Savarino P, Viscardi G, Quagliotto P, Perracino P, Barni E. Voltammetric behaviour of heterocyclic systems. Pyridyl-substituted benzimidazoles, benzoxazoles and benzothiazoles. J Heterocycl Chem 1997. [DOI: 10.1002/jhet.5570340517] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mella M, Fagnoni M, Viscardi G, Savarino P, Elisei F, Albini A. On the photochemical behaviour of some diarylpyrazolines. J Photochem Photobiol A Chem 1997. [DOI: 10.1016/s1010-6030(97)00097-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ardizzone S, Bianchi C, Drago P, Mozzanica D, Quagliotto P, Savarino P, Viscardi G. Adsorption of 1-alkyl-4-methylpyridinium salts at solid-liquid and water-air interfaces. Colloids Surf A Physicochem Eng Asp 1996. [DOI: 10.1016/0927-7757(96)03632-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Montoner E, Savarino P, Adani F, Ricca G. ORGANOSULPHUR PHOSPHORUS ACID COMPOUNDS. PART 6. PREPARATION AND ANALYTICAL IDENTIFICATION OF FLUOROBENZYLPHOSPHONO-DISULPHONIC ACIDS. PHOSPHORUS SULFUR 1995. [DOI: 10.1080/10426509508027887] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Savarino P, Viscardi G, Quagliotto P, Montoneri E, Barni E. DEVELOPMENTS IN DYEING TECHNOLOGY BASED ON MICROEMULSION SYSTEMS. J DISPER SCI TECHNOL 1995. [DOI: 10.1080/01932699508943658] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Montoneri E, Savarino P, Viscardi G, Gallazzi MC. ORGANOSULPHUR PHOSPHORUS ACID COMPOUNDS. PART 4. FLUOROBENZYLPHOSPHONO-SULPHONIC ACIDS. PHOSPHORUS SULFUR 1994. [DOI: 10.1080/10426509408018398] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Fasani E, Albini A, Savarino P, Viscardi G, Barni E. Hydrogen bonding, protonation and twisting in the singlet excited state of some 2-(4-Aminophenyl)pyrido-oxa-, -thia-, and -imidazoles. J Heterocycl Chem 1993. [DOI: 10.1002/jhet.5570300433] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Gallazzi MC, Montoneri E, Savarino P, Bianchi F, Di Landro L. Polydimethyl phosphazene as a material for new organo-inorganic separation membranes. ACTA ACUST UNITED AC 1993. [DOI: 10.1007/bf00609177] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Montoneri E, Savarino P, Viscardi G, Gallazzi MC, Gleria M, Minto F. Structure and molecular weight of catenapoly [diphenoxy-?5-phosphazene-co-bis(sulfophenoxy)-?5-phosphazene] obtained from catenapoly (diphenoxy-?5-phosphazene) in very strong acid medium. ACTA ACUST UNITED AC 1992. [DOI: 10.1007/bf00701115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Savarino P, Fedorov LA, Viskardi G, Barni E. 13C NMR spectra of azolopyridines and their quaternary salts. Russ Chem Bull 1992. [DOI: 10.1007/bf01150890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Barni E, Savarino P, Viscardi G, Carpignano R, Di Modica G. MICROEMULSIONS AND THEIR POTENTIAL APPLICATIONS IN DYEING PROCESSES. J DISPER SCI TECHNOL 1991. [DOI: 10.1080/01932699108913129] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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De Lisi R, Fisicaro E, Milioto S, Pelizzetti E, Savarino P. Thermodynamic properties of N-octyl- and N-dodecylnicotinamide chlorides in water. J SOLUTION CHEM 1990. [DOI: 10.1007/bf00650457] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Savarino P, Viscardi G, Barni E. Heterocyclic hydrophobic dyes and their interactions with surfactant and oil-in-water microemulsions. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0166-6622(90)80217-r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Kalyanasundaram K, Colassis T, Humphry-Baker R, Savarino P, Barni E, Pelizzetti E, Grätzel M. Micellar properties of nicotinamide-based surfactants. J Colloid Interface Sci 1989. [DOI: 10.1016/0021-9797(89)90261-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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28
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Savarino P, Viscardi G, Carpignano R, Barni E. Oxazole ring cleavage in the course of the synthesis of heterocyclic azo dyes. J Heterocycl Chem 1989. [DOI: 10.1002/jhet.5570260115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Barni E, Savarino P, Viscardi G, Cargnino F, Ferrero G, Levis M. CATIONIC VESICLE PRECURSORS AS RETARDING AND LEVELLING AGENTS FOR THE DYEING OF ACRYLIC FIBRES. J DISPER SCI TECHNOL 1988. [DOI: 10.1080/01932698808943990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Barni E, Carpignano R, Di Modica G, Savarino P, Viscardi G. VESICLE PRECURSORS IN THE DYEING OF POLYESTER WITH DISPERSE DYES. J DISPER SCI TECHNOL 1988. [DOI: 10.1080/01932698808943977] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Massacesi M, Biddau M, Devoto G, Barni E, Savarino P. Group IIB metal chloride complexes with some 2-(methylpyridyl or -quinolyl)benz-X-azoles. Inorganica Chim Acta 1984. [DOI: 10.1016/s0020-1693(00)82532-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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