Metabolism of aromatic amino acids in collagen diseases. Urinary excretion of metanephrine and normetanephrine, and spontaneous degradation of vanilpyruvic acid
1. 1. Urinary excretion of total metanephrine and normetanephrine was significantly lower in 20 cases of rheumatic fever and relative “collagen diseases”, as compared to 10 normal control cases. 2. 2. Ingestion of l-tryptophan resulted, in 2 out of 3 normal children, in significant increase of the u...
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| Veröffentlicht in: | Clinica chimica acta 1966-05, Vol.13 (5), p.574-581 |
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| container_title | Clinica chimica acta |
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| creator | Choremis, K.B. Agathopoulos, A.S. Constantsas, N.S. Danelatos-Athanassiadis, C. |
| description | 1.
1. Urinary excretion of total metanephrine and normetanephrine was significantly lower in 20 cases of rheumatic fever and relative “collagen diseases”, as compared to 10 normal control cases.
2.
2. Ingestion of
l-tryptophan resulted, in 2 out of 3 normal children, in significant increase of the urinary excretion of these compounds ; m 4 out of 6 patients it resulted in significant decrease. The difference between the groups was statistically significant.
3.
3. Synthetic vanilpyruvic acid produced a number of degradation products when its solutions in ether or ethyl acetate were stored in the freezer without exclusion of oxygen, or when freshly prepared solutions were subjected to paper chromatography with an alkaline solvent system. Besides vanillin and homovanillic acid, a substance, accounting for the largest percentage of the degradation products, coincided on the chromatograms with the spot of vanillactic acid. |
| doi_str_mv | 10.1016/0009-8981(66)90161-6 |
| format | Article |
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1. Urinary excretion of total metanephrine and normetanephrine was significantly lower in 20 cases of rheumatic fever and relative “collagen diseases”, as compared to 10 normal control cases.
2.
2. Ingestion of
l-tryptophan resulted, in 2 out of 3 normal children, in significant increase of the urinary excretion of these compounds ; m 4 out of 6 patients it resulted in significant decrease. The difference between the groups was statistically significant.
3.
3. Synthetic vanilpyruvic acid produced a number of degradation products when its solutions in ether or ethyl acetate were stored in the freezer without exclusion of oxygen, or when freshly prepared solutions were subjected to paper chromatography with an alkaline solvent system. Besides vanillin and homovanillic acid, a substance, accounting for the largest percentage of the degradation products, coincided on the chromatograms with the spot of vanillactic acid.</description><identifier>ISSN: 0009-8981</identifier><identifier>EISSN: 1873-3492</identifier><identifier>DOI: 10.1016/0009-8981(66)90161-6</identifier><identifier>PMID: 5962916</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Acetates ; Alkalies ; Child ; Chromatography, Paper ; Collagen Diseases - urine ; Epinephrine - urine ; Ethyl Ethers ; Flavoring Agents ; Freezing ; Humans ; Lactates - urine ; Normetanephrine - urine ; Phenylacetates ; Pyruvates - urine ; Rheumatic Fever - urine ; Solvents ; Tryptophan</subject><ispartof>Clinica chimica acta, 1966-05, Vol.13 (5), p.574-581</ispartof><rights>1966</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c357t-3fb13368d90712b2d20a124d38ce4f351c303c6d36bd57358d0834f23e0e32fc3</citedby><cites>FETCH-LOGICAL-c357t-3fb13368d90712b2d20a124d38ce4f351c303c6d36bd57358d0834f23e0e32fc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0009-8981(66)90161-6$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/5962916$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Choremis, K.B.</creatorcontrib><creatorcontrib>Agathopoulos, A.S.</creatorcontrib><creatorcontrib>Constantsas, N.S.</creatorcontrib><creatorcontrib>Danelatos-Athanassiadis, C.</creatorcontrib><title>Metabolism of aromatic amino acids in collagen diseases. Urinary excretion of metanephrine and normetanephrine, and spontaneous degradation of vanilpyruvic acid</title><title>Clinica chimica acta</title><addtitle>Clin Chim Acta</addtitle><description>1.
1. Urinary excretion of total metanephrine and normetanephrine was significantly lower in 20 cases of rheumatic fever and relative “collagen diseases”, as compared to 10 normal control cases.
2.
2. Ingestion of
l-tryptophan resulted, in 2 out of 3 normal children, in significant increase of the urinary excretion of these compounds ; m 4 out of 6 patients it resulted in significant decrease. The difference between the groups was statistically significant.
3.
3. Synthetic vanilpyruvic acid produced a number of degradation products when its solutions in ether or ethyl acetate were stored in the freezer without exclusion of oxygen, or when freshly prepared solutions were subjected to paper chromatography with an alkaline solvent system. Besides vanillin and homovanillic acid, a substance, accounting for the largest percentage of the degradation products, coincided on the chromatograms with the spot of vanillactic acid.</description><subject>Acetates</subject><subject>Alkalies</subject><subject>Child</subject><subject>Chromatography, Paper</subject><subject>Collagen Diseases - urine</subject><subject>Epinephrine - urine</subject><subject>Ethyl Ethers</subject><subject>Flavoring Agents</subject><subject>Freezing</subject><subject>Humans</subject><subject>Lactates - urine</subject><subject>Normetanephrine - urine</subject><subject>Phenylacetates</subject><subject>Pyruvates - urine</subject><subject>Rheumatic Fever - urine</subject><subject>Solvents</subject><subject>Tryptophan</subject><issn>0009-8981</issn><issn>1873-3492</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1966</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9UU1r3DAQFaUh3aT9By3oVBqIt_qwZfkSKCFfsCGX5ixkaZyq2JIreZfk3-SnRt7dhpxyEnrvzZuZNwh9pWRJCRU_CSFNIRtJfwhx0mSEFuIDWlBZ84KXDfuIFq-ST-gopb_5WxJBD9Fh1QjWULFAz7cw6Tb0Lg04dFjHMOjJGawH5wPWxtmEnccm9L1-AI-tS6ATpCW-j87r-ITh0USYXPBz_ZDdPIx_MgdYe4t9iG-x0y2YxuBnLKwTtvAQtdX_DTbau358iuvNPERu_xkddLpP8GX_HqP7y4vf59fF6u7q5vzXqjC8qqeCdy3lXEjbkJqylllGNGWl5dJA2fGKGk64EZaL1lY1r6Qlkpcd40CAs87wY_R95zvG8G8NaVKDSwby2ts5lSyZJFVNs7DcCU0MKUXo1BjdkJNQlKj5MGpOXc2pKyHU9jBK5LJve_91O4B9LdpfIvNnOx7ykhsHUSXjwBuwLoKZlA3u_QYvJJSgZw</recordid><startdate>196605</startdate><enddate>196605</enddate><creator>Choremis, K.B.</creator><creator>Agathopoulos, A.S.</creator><creator>Constantsas, N.S.</creator><creator>Danelatos-Athanassiadis, C.</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>196605</creationdate><title>Metabolism of aromatic amino acids in collagen diseases. Urinary excretion of metanephrine and normetanephrine, and spontaneous degradation of vanilpyruvic acid</title><author>Choremis, K.B. ; Agathopoulos, A.S. ; Constantsas, N.S. ; Danelatos-Athanassiadis, C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c357t-3fb13368d90712b2d20a124d38ce4f351c303c6d36bd57358d0834f23e0e32fc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1966</creationdate><topic>Acetates</topic><topic>Alkalies</topic><topic>Child</topic><topic>Chromatography, Paper</topic><topic>Collagen Diseases - urine</topic><topic>Epinephrine - urine</topic><topic>Ethyl Ethers</topic><topic>Flavoring Agents</topic><topic>Freezing</topic><topic>Humans</topic><topic>Lactates - urine</topic><topic>Normetanephrine - urine</topic><topic>Phenylacetates</topic><topic>Pyruvates - urine</topic><topic>Rheumatic Fever - urine</topic><topic>Solvents</topic><topic>Tryptophan</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Choremis, K.B.</creatorcontrib><creatorcontrib>Agathopoulos, A.S.</creatorcontrib><creatorcontrib>Constantsas, N.S.</creatorcontrib><creatorcontrib>Danelatos-Athanassiadis, C.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Clinica chimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Choremis, K.B.</au><au>Agathopoulos, A.S.</au><au>Constantsas, N.S.</au><au>Danelatos-Athanassiadis, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Metabolism of aromatic amino acids in collagen diseases. Urinary excretion of metanephrine and normetanephrine, and spontaneous degradation of vanilpyruvic acid</atitle><jtitle>Clinica chimica acta</jtitle><addtitle>Clin Chim Acta</addtitle><date>1966-05</date><risdate>1966</risdate><volume>13</volume><issue>5</issue><spage>574</spage><epage>581</epage><pages>574-581</pages><issn>0009-8981</issn><eissn>1873-3492</eissn><abstract>1.
1. Urinary excretion of total metanephrine and normetanephrine was significantly lower in 20 cases of rheumatic fever and relative “collagen diseases”, as compared to 10 normal control cases.
2.
2. Ingestion of
l-tryptophan resulted, in 2 out of 3 normal children, in significant increase of the urinary excretion of these compounds ; m 4 out of 6 patients it resulted in significant decrease. The difference between the groups was statistically significant.
3.
3. Synthetic vanilpyruvic acid produced a number of degradation products when its solutions in ether or ethyl acetate were stored in the freezer without exclusion of oxygen, or when freshly prepared solutions were subjected to paper chromatography with an alkaline solvent system. Besides vanillin and homovanillic acid, a substance, accounting for the largest percentage of the degradation products, coincided on the chromatograms with the spot of vanillactic acid.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>5962916</pmid><doi>10.1016/0009-8981(66)90161-6</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0009-8981 |
| ispartof | Clinica chimica acta, 1966-05, Vol.13 (5), p.574-581 |
| issn | 0009-8981 1873-3492 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Acetates Alkalies Child Chromatography, Paper Collagen Diseases - urine Epinephrine - urine Ethyl Ethers Flavoring Agents Freezing Humans Lactates - urine Normetanephrine - urine Phenylacetates Pyruvates - urine Rheumatic Fever - urine Solvents Tryptophan |
| title | Metabolism of aromatic amino acids in collagen diseases. Urinary excretion of metanephrine and normetanephrine, and spontaneous degradation of vanilpyruvic acid |
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