Studies on human lactation. I. Within-feed and between-breast variation in selected components of human milk
Within-feed and between-breast differences in the concentrations of sodium, potassium, chloride, calcium, magnesium, lipid, protein, lactose, glucose, urea nitrogen, creatinine, zinc, and copper were examined in milk samples from 10 women. The average lipid content doubled in the interval from the b...
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| Veröffentlicht in: | The American journal of clinical nutrition 1984-09, Vol.40 (3), p.635-646 |
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| creator | Neville, M C Keller, R P Seacat, J Casey, C E Allen, J C Archer, P |
| description | Within-feed and between-breast differences in the concentrations of sodium, potassium, chloride, calcium, magnesium, lipid, protein, lactose, glucose, urea nitrogen, creatinine, zinc, and copper were examined in milk samples from 10 women. The average lipid content doubled in the interval from the beginning of the feed to the end. The composition of the aqueous phase of milk, as determined by the major osmotically active constituents, did not vary significantly within the feed. For these components as well as for lipid a small mid-feed sample of milk gave the same mean composition as the pooled, pumped contents of one breast suggesting that such a sample is adequate for determination of milk composition in population studies. Sporadic, inconsistent differences in the composition of the milk from the right and left breasts were observed. It is suggested that mastitis may contribute to these differences. It is recommended that samples routinely be taken from both breasts and analyzed for sodium and chloride to rule out episodes of mastitis or other local phenomena which sporadically alter milk composition. |
| doi_str_mv | 10.1093/ajcn/40.3.635 |
| format | Article |
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I. Within-feed and between-breast variation in selected components of human milk</title><source>MEDLINE</source><source>Alma/SFX Local Collection</source><creator>Neville, M C ; Keller, R P ; Seacat, J ; Casey, C E ; Allen, J C ; Archer, P</creator><creatorcontrib>Neville, M C ; Keller, R P ; Seacat, J ; Casey, C E ; Allen, J C ; Archer, P</creatorcontrib><description>Within-feed and between-breast differences in the concentrations of sodium, potassium, chloride, calcium, magnesium, lipid, protein, lactose, glucose, urea nitrogen, creatinine, zinc, and copper were examined in milk samples from 10 women. The average lipid content doubled in the interval from the beginning of the feed to the end. The composition of the aqueous phase of milk, as determined by the major osmotically active constituents, did not vary significantly within the feed. For these components as well as for lipid a small mid-feed sample of milk gave the same mean composition as the pooled, pumped contents of one breast suggesting that such a sample is adequate for determination of milk composition in population studies. Sporadic, inconsistent differences in the composition of the milk from the right and left breasts were observed. It is suggested that mastitis may contribute to these differences. It is recommended that samples routinely be taken from both breasts and analyzed for sodium and chloride to rule out episodes of mastitis or other local phenomena which sporadically alter milk composition.</description><identifier>ISSN: 0002-9165</identifier><identifier>EISSN: 1938-3207</identifier><identifier>DOI: 10.1093/ajcn/40.3.635</identifier><identifier>PMID: 6475828</identifier><identifier>CODEN: AJCNAC</identifier><language>eng</language><publisher>Bethesda, MD: Elsevier Inc</publisher><subject>Adolescent ; Adult ; Biological and medical sciences ; Breast Feeding ; Calcium - analysis ; Chlorides - analysis ; Female ; Fundamental and applied biological sciences. Psychology ; Glucose - analysis ; Human milk composition ; Humans ; Lactation ; Lactose - analysis ; Lipids - analysis ; Magnesium - analysis ; mammae ; mastitis ; Mastitis - metabolism ; Milk Proteins - analysis ; Milk, Human - analysis ; Mother. Fetoplacental unit. Mammary gland. Milk ; Potassium - analysis ; Pregnancy ; Pregnancy. Parturition. Lactation ; sampling of human milk ; Sodium - analysis ; Time Factors ; Vertebrates: reproduction</subject><ispartof>The American journal of clinical nutrition, 1984-09, Vol.40 (3), p.635-646</ispartof><rights>1984 American Society for Nutrition.</rights><rights>1985 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3195-1d8cf10c3919bb91c8a41809ec8a48c7086312a2436ff47635bf02c39288248f3</citedby><cites>FETCH-LOGICAL-c3195-1d8cf10c3919bb91c8a41809ec8a48c7086312a2436ff47635bf02c39288248f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=9133193$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/6475828$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Neville, M C</creatorcontrib><creatorcontrib>Keller, R P</creatorcontrib><creatorcontrib>Seacat, J</creatorcontrib><creatorcontrib>Casey, C E</creatorcontrib><creatorcontrib>Allen, J C</creatorcontrib><creatorcontrib>Archer, P</creatorcontrib><title>Studies on human lactation. I. Within-feed and between-breast variation in selected components of human milk</title><title>The American journal of clinical nutrition</title><addtitle>Am J Clin Nutr</addtitle><description>Within-feed and between-breast differences in the concentrations of sodium, potassium, chloride, calcium, magnesium, lipid, protein, lactose, glucose, urea nitrogen, creatinine, zinc, and copper were examined in milk samples from 10 women. The average lipid content doubled in the interval from the beginning of the feed to the end. The composition of the aqueous phase of milk, as determined by the major osmotically active constituents, did not vary significantly within the feed. For these components as well as for lipid a small mid-feed sample of milk gave the same mean composition as the pooled, pumped contents of one breast suggesting that such a sample is adequate for determination of milk composition in population studies. Sporadic, inconsistent differences in the composition of the milk from the right and left breasts were observed. It is suggested that mastitis may contribute to these differences. It is recommended that samples routinely be taken from both breasts and analyzed for sodium and chloride to rule out episodes of mastitis or other local phenomena which sporadically alter milk composition.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Breast Feeding</subject><subject>Calcium - analysis</subject><subject>Chlorides - analysis</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Glucose - analysis</subject><subject>Human milk composition</subject><subject>Humans</subject><subject>Lactation</subject><subject>Lactose - analysis</subject><subject>Lipids - analysis</subject><subject>Magnesium - analysis</subject><subject>mammae</subject><subject>mastitis</subject><subject>Mastitis - metabolism</subject><subject>Milk Proteins - analysis</subject><subject>Milk, Human - analysis</subject><subject>Mother. Fetoplacental unit. Mammary gland. Milk</subject><subject>Potassium - analysis</subject><subject>Pregnancy</subject><subject>Pregnancy. Parturition. Lactation</subject><subject>sampling of human milk</subject><subject>Sodium - analysis</subject><subject>Time Factors</subject><subject>Vertebrates: reproduction</subject><issn>0002-9165</issn><issn>1938-3207</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1984</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kE1LxDAURYMoOo4uXQpZiLvWpOm0yVIGv2DAhYrLkKYvGG3TMUkV_70Zp8zOVR68w325B6EzSnJKBLtS79pdlSRnecUWe2hGBeMZK0i9j2aEkCITtFocoeMQ3gmhRcmrQ3RYlfWCF3yGuqc4thYCHhx-G3vlcKd0VNEOLscPOX618c26zAC0WLkWNxC_AVzWeFAh4i_l7R-MrcMBOtAxgXro14MDF1OsmWJ7232coAOjugCn0ztHL7c3z8v7bPV497C8XmWaUbHIaMu1oUQzQUXTCKq5KiknAjYD1zXhFaOFKkpWGVPWqXZjSJHwgvPUz7A5utzmrv3wOUKIsrdBQ9cpB8MYJE8aGKdVArMtqP0Qggcj1972yv9ISuTGrtzYlSWRTKYziT-fgsemh3ZHTzrT_mLaq6BVZ7xy2oYdJihLBVnC6i0GScKXBS-DtuA0tNYng7Id7D8f-AWUT5Ux</recordid><startdate>198409</startdate><enddate>198409</enddate><creator>Neville, M C</creator><creator>Keller, R P</creator><creator>Seacat, J</creator><creator>Casey, C E</creator><creator>Allen, J C</creator><creator>Archer, P</creator><general>Elsevier Inc</general><general>American Society for Clinical Nutrition</general><scope>6I.</scope><scope>AAFTH</scope><scope>IQODW</scope><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>198409</creationdate><title>Studies on human lactation. I. Within-feed and between-breast variation in selected components of human milk</title><author>Neville, M C ; Keller, R P ; Seacat, J ; Casey, C E ; Allen, J C ; Archer, P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3195-1d8cf10c3919bb91c8a41809ec8a48c7086312a2436ff47635bf02c39288248f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1984</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Biological and medical sciences</topic><topic>Breast Feeding</topic><topic>Calcium - analysis</topic><topic>Chlorides - analysis</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Glucose - analysis</topic><topic>Human milk composition</topic><topic>Humans</topic><topic>Lactation</topic><topic>Lactose - analysis</topic><topic>Lipids - analysis</topic><topic>Magnesium - analysis</topic><topic>mammae</topic><topic>mastitis</topic><topic>Mastitis - metabolism</topic><topic>Milk Proteins - analysis</topic><topic>Milk, Human - analysis</topic><topic>Mother. Fetoplacental unit. Mammary gland. Milk</topic><topic>Potassium - analysis</topic><topic>Pregnancy</topic><topic>Pregnancy. Parturition. Lactation</topic><topic>sampling of human milk</topic><topic>Sodium - analysis</topic><topic>Time Factors</topic><topic>Vertebrates: reproduction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Neville, M C</creatorcontrib><creatorcontrib>Keller, R P</creatorcontrib><creatorcontrib>Seacat, J</creatorcontrib><creatorcontrib>Casey, C E</creatorcontrib><creatorcontrib>Allen, J C</creatorcontrib><creatorcontrib>Archer, P</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Pascal-Francis</collection><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>The American journal of clinical nutrition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Neville, M C</au><au>Keller, R P</au><au>Seacat, J</au><au>Casey, C E</au><au>Allen, J C</au><au>Archer, P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Studies on human lactation. I. Within-feed and between-breast variation in selected components of human milk</atitle><jtitle>The American journal of clinical nutrition</jtitle><addtitle>Am J Clin Nutr</addtitle><date>1984-09</date><risdate>1984</risdate><volume>40</volume><issue>3</issue><spage>635</spage><epage>646</epage><pages>635-646</pages><issn>0002-9165</issn><eissn>1938-3207</eissn><coden>AJCNAC</coden><abstract>Within-feed and between-breast differences in the concentrations of sodium, potassium, chloride, calcium, magnesium, lipid, protein, lactose, glucose, urea nitrogen, creatinine, zinc, and copper were examined in milk samples from 10 women. The average lipid content doubled in the interval from the beginning of the feed to the end. The composition of the aqueous phase of milk, as determined by the major osmotically active constituents, did not vary significantly within the feed. For these components as well as for lipid a small mid-feed sample of milk gave the same mean composition as the pooled, pumped contents of one breast suggesting that such a sample is adequate for determination of milk composition in population studies. Sporadic, inconsistent differences in the composition of the milk from the right and left breasts were observed. It is suggested that mastitis may contribute to these differences. It is recommended that samples routinely be taken from both breasts and analyzed for sodium and chloride to rule out episodes of mastitis or other local phenomena which sporadically alter milk composition.</abstract><cop>Bethesda, MD</cop><pub>Elsevier Inc</pub><pmid>6475828</pmid><doi>10.1093/ajcn/40.3.635</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | The American journal of clinical nutrition, 1984-09, Vol.40 (3), p.635-646 |
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| subjects | Adolescent Adult Biological and medical sciences Breast Feeding Calcium - analysis Chlorides - analysis Female Fundamental and applied biological sciences. Psychology Glucose - analysis Human milk composition Humans Lactation Lactose - analysis Lipids - analysis Magnesium - analysis mammae mastitis Mastitis - metabolism Milk Proteins - analysis Milk, Human - analysis Mother. Fetoplacental unit. Mammary gland. Milk Potassium - analysis Pregnancy Pregnancy. Parturition. Lactation sampling of human milk Sodium - analysis Time Factors Vertebrates: reproduction |
| title | Studies on human lactation. I. Within-feed and between-breast variation in selected components of human milk |
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