Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid
Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF spu...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Eiserich, Jason P. [verfasserIn] Ott, Sean P. [verfasserIn] Kadir, Tamara [verfasserIn] Morrissey, Brian M. [verfasserIn] Hayakawa, Keri A. [verfasserIn] La Merrill, Michele A. [verfasserIn] Cross, Carroll E. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2018 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Free radical biology and medicine - New York, NY [u.a.] : Elsevier, 1987, 129, Seite 146-154 |
|---|---|
| Übergeordnetes Werk: |
volume:129 ; pages:146-154 |
| DOI / URN: |
10.1016/j.freeradbiomed.2018.09.007 |
|---|
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ELV00110845X |
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| 100 | 1 | |a Eiserich, Jason P. |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid |
| 264 | 1 | |c 2018 | |
| 336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
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| 520 | |a Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. | ||
| 650 | 4 | |a Cystic fibrosis | |
| 650 | 4 | |a Cyanide | |
| 650 | 4 | |a Ion-specific electrode | |
| 650 | 4 | |a Cyanogen chloride | |
| 650 | 4 | |a Cyanate | |
| 650 | 4 | |a P. aeruginosa | |
| 650 | 4 | |a Neutrophils | |
| 650 | 4 | |a Myeloperoxidase | |
| 650 | 4 | |a Hypochlorous acid | |
| 650 | 4 | |a Carbamylated protein | |
| 700 | 1 | |a Ott, Sean P. |e verfasserin |4 aut | |
| 700 | 1 | |a Kadir, Tamara |e verfasserin |4 aut | |
| 700 | 1 | |a Morrissey, Brian M. |e verfasserin |4 aut | |
| 700 | 1 | |a Hayakawa, Keri A. |e verfasserin |4 aut | |
| 700 | 1 | |a La Merrill, Michele A. |e verfasserin |4 aut | |
| 700 | 1 | |a Cross, Carroll E. |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Free radical biology and medicine |d New York, NY [u.a.] : Elsevier, 1987 |g 129, Seite 146-154 |h Online-Ressource |w (DE-627)300898568 |w (DE-600)1483653-1 |w (DE-576)098330233 |x 1873-4596 |7 nnns |
| 773 | 1 | 8 | |g volume:129 |g pages:146-154 |
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44.46 44.33 42.13 44.39 |
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2018 |
| allfields |
10.1016/j.freeradbiomed.2018.09.007 doi (DE-627)ELV00110845X (ELSEVIER)S0891-5849(18)31406-0 DE-627 ger DE-627 rda eng 570 610 DE-600 44.46 bkl 44.33 bkl 42.13 bkl 44.39 bkl Eiserich, Jason P. verfasserin aut Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. Cystic fibrosis Cyanide Ion-specific electrode Cyanogen chloride Cyanate P. aeruginosa Neutrophils Myeloperoxidase Hypochlorous acid Carbamylated protein Ott, Sean P. verfasserin aut Kadir, Tamara verfasserin aut Morrissey, Brian M. verfasserin aut Hayakawa, Keri A. verfasserin aut La Merrill, Michele A. verfasserin aut Cross, Carroll E. verfasserin aut Enthalten in Free radical biology and medicine New York, NY [u.a.] : Elsevier, 1987 129, Seite 146-154 Online-Ressource (DE-627)300898568 (DE-600)1483653-1 (DE-576)098330233 1873-4596 nnns volume:129 pages:146-154 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.46 Klinische Pathologie 44.33 Physiologische Chemie 42.13 Molekularbiologie 44.39 Toxikologie AR 129 146-154 |
| spelling |
10.1016/j.freeradbiomed.2018.09.007 doi (DE-627)ELV00110845X (ELSEVIER)S0891-5849(18)31406-0 DE-627 ger DE-627 rda eng 570 610 DE-600 44.46 bkl 44.33 bkl 42.13 bkl 44.39 bkl Eiserich, Jason P. verfasserin aut Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. Cystic fibrosis Cyanide Ion-specific electrode Cyanogen chloride Cyanate P. aeruginosa Neutrophils Myeloperoxidase Hypochlorous acid Carbamylated protein Ott, Sean P. verfasserin aut Kadir, Tamara verfasserin aut Morrissey, Brian M. verfasserin aut Hayakawa, Keri A. verfasserin aut La Merrill, Michele A. verfasserin aut Cross, Carroll E. verfasserin aut Enthalten in Free radical biology and medicine New York, NY [u.a.] : Elsevier, 1987 129, Seite 146-154 Online-Ressource (DE-627)300898568 (DE-600)1483653-1 (DE-576)098330233 1873-4596 nnns volume:129 pages:146-154 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.46 Klinische Pathologie 44.33 Physiologische Chemie 42.13 Molekularbiologie 44.39 Toxikologie AR 129 146-154 |
| allfields_unstemmed |
10.1016/j.freeradbiomed.2018.09.007 doi (DE-627)ELV00110845X (ELSEVIER)S0891-5849(18)31406-0 DE-627 ger DE-627 rda eng 570 610 DE-600 44.46 bkl 44.33 bkl 42.13 bkl 44.39 bkl Eiserich, Jason P. verfasserin aut Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. Cystic fibrosis Cyanide Ion-specific electrode Cyanogen chloride Cyanate P. aeruginosa Neutrophils Myeloperoxidase Hypochlorous acid Carbamylated protein Ott, Sean P. verfasserin aut Kadir, Tamara verfasserin aut Morrissey, Brian M. verfasserin aut Hayakawa, Keri A. verfasserin aut La Merrill, Michele A. verfasserin aut Cross, Carroll E. verfasserin aut Enthalten in Free radical biology and medicine New York, NY [u.a.] : Elsevier, 1987 129, Seite 146-154 Online-Ressource (DE-627)300898568 (DE-600)1483653-1 (DE-576)098330233 1873-4596 nnns volume:129 pages:146-154 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.46 Klinische Pathologie 44.33 Physiologische Chemie 42.13 Molekularbiologie 44.39 Toxikologie AR 129 146-154 |
| allfieldsGer |
10.1016/j.freeradbiomed.2018.09.007 doi (DE-627)ELV00110845X (ELSEVIER)S0891-5849(18)31406-0 DE-627 ger DE-627 rda eng 570 610 DE-600 44.46 bkl 44.33 bkl 42.13 bkl 44.39 bkl Eiserich, Jason P. verfasserin aut Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. Cystic fibrosis Cyanide Ion-specific electrode Cyanogen chloride Cyanate P. aeruginosa Neutrophils Myeloperoxidase Hypochlorous acid Carbamylated protein Ott, Sean P. verfasserin aut Kadir, Tamara verfasserin aut Morrissey, Brian M. verfasserin aut Hayakawa, Keri A. verfasserin aut La Merrill, Michele A. verfasserin aut Cross, Carroll E. verfasserin aut Enthalten in Free radical biology and medicine New York, NY [u.a.] : Elsevier, 1987 129, Seite 146-154 Online-Ressource (DE-627)300898568 (DE-600)1483653-1 (DE-576)098330233 1873-4596 nnns volume:129 pages:146-154 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.46 Klinische Pathologie 44.33 Physiologische Chemie 42.13 Molekularbiologie 44.39 Toxikologie AR 129 146-154 |
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10.1016/j.freeradbiomed.2018.09.007 doi (DE-627)ELV00110845X (ELSEVIER)S0891-5849(18)31406-0 DE-627 ger DE-627 rda eng 570 610 DE-600 44.46 bkl 44.33 bkl 42.13 bkl 44.39 bkl Eiserich, Jason P. verfasserin aut Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. Cystic fibrosis Cyanide Ion-specific electrode Cyanogen chloride Cyanate P. aeruginosa Neutrophils Myeloperoxidase Hypochlorous acid Carbamylated protein Ott, Sean P. verfasserin aut Kadir, Tamara verfasserin aut Morrissey, Brian M. verfasserin aut Hayakawa, Keri A. verfasserin aut La Merrill, Michele A. verfasserin aut Cross, Carroll E. verfasserin aut Enthalten in Free radical biology and medicine New York, NY [u.a.] : Elsevier, 1987 129, Seite 146-154 Online-Ressource (DE-627)300898568 (DE-600)1483653-1 (DE-576)098330233 1873-4596 nnns volume:129 pages:146-154 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.46 Klinische Pathologie 44.33 Physiologische Chemie 42.13 Molekularbiologie 44.39 Toxikologie AR 129 146-154 |
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Enthalten in Free radical biology and medicine 129, Seite 146-154 volume:129 pages:146-154 |
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Cystic fibrosis Cyanide Ion-specific electrode Cyanogen chloride Cyanate P. aeruginosa Neutrophils Myeloperoxidase Hypochlorous acid Carbamylated protein |
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Eiserich, Jason P. @@aut@@ Ott, Sean P. @@aut@@ Kadir, Tamara @@aut@@ Morrissey, Brian M. @@aut@@ Hayakawa, Keri A. @@aut@@ La Merrill, Michele A. @@aut@@ Cross, Carroll E. @@aut@@ |
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Eiserich, Jason P. |
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Eiserich, Jason P. ddc 570 bkl 44.46 bkl 44.33 bkl 42.13 bkl 44.39 misc Cystic fibrosis misc Cyanide misc Ion-specific electrode misc Cyanogen chloride misc Cyanate misc P. aeruginosa misc Neutrophils misc Myeloperoxidase misc Hypochlorous acid misc Carbamylated protein Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid |
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570 610 DE-600 44.46 bkl 44.33 bkl 42.13 bkl 44.39 bkl Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid Cystic fibrosis Cyanide Ion-specific electrode Cyanogen chloride Cyanate P. aeruginosa Neutrophils Myeloperoxidase Hypochlorous acid Carbamylated protein |
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ddc 570 bkl 44.46 bkl 44.33 bkl 42.13 bkl 44.39 misc Cystic fibrosis misc Cyanide misc Ion-specific electrode misc Cyanogen chloride misc Cyanate misc P. aeruginosa misc Neutrophils misc Myeloperoxidase misc Hypochlorous acid misc Carbamylated protein |
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ddc 570 bkl 44.46 bkl 44.33 bkl 42.13 bkl 44.39 misc Cystic fibrosis misc Cyanide misc Ion-specific electrode misc Cyanogen chloride misc Cyanate misc P. aeruginosa misc Neutrophils misc Myeloperoxidase misc Hypochlorous acid misc Carbamylated protein |
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ddc 570 bkl 44.46 bkl 44.33 bkl 42.13 bkl 44.39 misc Cystic fibrosis misc Cyanide misc Ion-specific electrode misc Cyanogen chloride misc Cyanate misc P. aeruginosa misc Neutrophils misc Myeloperoxidase misc Hypochlorous acid misc Carbamylated protein |
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Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid |
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Eiserich, Jason P. Ott, Sean P. Kadir, Tamara Morrissey, Brian M. Hayakawa, Keri A. La Merrill, Michele A. Cross, Carroll E. |
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quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid |
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Quantitative assessment of cyanide in cystic fibrosis sputum and its oxidative catabolism by hypochlorous acid |
| abstract |
Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. |
| abstractGer |
Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. |
| abstract_unstemmed |
Rationale: Cystic fibrosis (CF) patients are known to produce cyanide (CN-) although challenges exist in determinations of total levels, the precise bioactive levels, and specificity of its production by CF microflora, especially P. aeruginosa. Our objective was to measure total CN- levels in CF sputa by a simple and novel technique in P. aeruginosa positive and negative adult patients, to review respiratory tract (RT) mechanisms for the production and degradation of CN-, and to interrogate sputa for post-translational protein modification by CN- metabolites.Methods: Sputa CN- concentrations were determined by using a commercially available CN- electrode, measuring levels before and after addition of cobinamide, a compound with extremely high affinity for CN-. Detection of protein carbamoylation was measured by Western blot.Measurements and main results: The commercial CN- electrode was found to overestimate CN- levels in CF sputum in a highly variable manner; cobinamide addition rectified this analytical issue. Although P. aeruginosa positive patients tended to have higher total CN- values, no significant differences in CN- levels were found between positive and negative sputa. The inflammatory oxidant hypochlorous acid (HOCl) was shown to rapidly decompose CN-, forming cyanogen chloride (CNCl) and the carbamoylating species cyanate (NCO-). Carbamoylated proteins were found in CF sputa, analogous to reported findings in asthma.Conclusions: Our studies indicate that CN- is a transient species in the inflamed CF airway due to multiple biosynthetic and metabolic processes. Stable metabolites of CN-, such as cyanate, or carbamoylated proteins, may be suitable biomarkers of overall CN- production in CF airways. |
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7.401759 |