<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0212-1611</journal-id>
<journal-title><![CDATA[Nutrición Hospitalaria]]></journal-title>
<abbrev-journal-title><![CDATA[Nutr. Hosp.]]></abbrev-journal-title>
<issn>0212-1611</issn>
<publisher>
<publisher-name><![CDATA[Grupo Arán]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0212-16112019000400004</article-id>
<article-id pub-id-type="doi">10.20960/nh.02661</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Influence of the type of amino acids in the formation of precipitates of copper and sulphur in parenteral nutrition]]></article-title>
<article-title xml:lang="es"><![CDATA[Influencia del tipo de aminoácidos en la formación de precipitados de cobre y azufre en nutrición parenteral]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gomis]]></surname>
<given-names><![CDATA[Pilar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arrieta Loitegui]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosas]]></surname>
<given-names><![CDATA[Cristian R]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Spiers]]></surname>
<given-names><![CDATA[Samantha]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Shinn]]></surname>
<given-names><![CDATA[Martyn]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orbaneja]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario 12 de Octubre Pharmacy Service ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Pall Corporation  ]]></institution>
<addr-line><![CDATA[Portsmouth ]]></addr-line>
<country>England</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,PallCorporation  ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>36</volume>
<numero>4</numero>
<fpage>764</fpage>
<lpage>768</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0212-16112019000400004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0212-16112019000400004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0212-16112019000400004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: we found a black precipitate during the infusion of a parenteral nutrition without lipids. The objective of this study is to check the composition of the precipitate and the influence of the type of amino acids in its formation.  Methods: four PN bags were prepared with the following composition: 1 l of amino acids solution, 150 g glucose, 60 mEq potassium, 217 mEq chloride, 105 mEq sodium, 15 mEq magnesium, 15 mEq calcium, 18.63 mmol phosphorus and trace elements (Addamel®). Each bag was prepared using a different type of amino acids solution with different amount of cysteine per litre: Tauramin® 10% (0.5 g/l), Primene® 10% (1.89 g/l), Tauramin® 12.6% (0.62 g/l) or Synthamin® 10% (0 g/l). Tauramin® 10% and Primene® 10% were packaged in glass containers whereas Tauramin® 12.6% and Synthamin® 10%, in plastic. The contents of each bag were filtered using Pall NEO96E 0.2 micron filters. A 2.25% area of each filter was observed by scanning electron microscopy at 100x magnification. The analysis by energy dispersive spectroscopy (EDS) was performed at 1,000x magnification.  Results: in the Primene® 10% and Tauramin® 10% filters, a greater amount of precipitate was observed than with Tauramin® 12.6% and Synthamin® 10%. The percentage of copper and sulphur in each area of the filters studied was, respectively, 22.9% and 11.5% (Primene® 10%), 19.3% and 9.6% (Tauramin® 10%), 3.7% and 0% (Tauramin® 12.6%), 2.5% y 0% (Synthamin® 10%).  Conclusions: the observed precipitate contains copper and sulphur. Precipitate formation occurs in high cysteine content amino acids solutions packaged in glass containers. It is important to use filters in the administration of PN to ensure that this type of precipitates are retained and do not pass to the patient.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: durante la infusión de una nutrición parenteral (NP) sin lípidos se observó un precipitado negro en el filtro. El objetivo del estudio es comprobar la composición del precipitado y la influencia del tipo de aminoácidos en su formación.  Métodos: se prepararon cuatro bolsas de NP con 1.000 ml de solución de aminoácidos, 150 g glucosa, 60 mEq potasio, 217 mEq cloruro, 105 mEq sodio, 15 mEq magnesio, 15 mEq calcio, 18,63 mmol fósforo y oligoelementos (Addamel®). Se utilizaron distintos tipos de aminoácidos con concentraciones de cisteína diferentes: Tauramin® 10% (0,5 g/l), Primene® 10% (1,89 g/l), Tauramin® 12,6% (0,62 g/l) o Synthamin® 17 (0 g/l). Tauramin® 10% y Primene® 10% estaban envasados en vidrio y Tauramin® 12,6% y Synthamin® 17, en plástico. El contenido de cada bolsa se filtró utilizando filtros Pall NEO96E de 0,2 micras. Se estudió un área de 2,25% de cada filtro mediante microscopía electrónica de barrido a 100 aumentos. El análisis mediante espectroscopia de dispersión de energía (EDS) se realizó a 1.000 aumentos.  Resultados: en los filtros con Primene® 10% y Tauramin® 10%, se observó mayor precipitación que con Tauramin® 12,6% y Synthamin® 10%. El porcentaje de cobre y azufre en cada área de los filtros estudiados fue 22,9% y 11,5% (Primene® 10%), 19,3% y 9,6% (Tauramin® 10%), 3,7% y 0% (Tauramin 12,6%), 2,5% y 0% (Synthamin 10%).  Conclusiones: el precipitado observado contiene cobre y azufre. La formación de precipitados se produce con soluciones de aminoácidos envasadas en vidrio, con gran cantidad de cisteína. Es importante usar filtros en la administración de NP para garantizar que los precipitados se retengan y no se pasen al paciente.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Parenteral nutrition]]></kwd>
<kwd lng="en"><![CDATA[Chemical precipitation]]></kwd>
<kwd lng="en"><![CDATA[Filtration]]></kwd>
<kwd lng="en"><![CDATA[Copper]]></kwd>
<kwd lng="en"><![CDATA[Cysteine]]></kwd>
<kwd lng="en"><![CDATA[Amino acids]]></kwd>
<kwd lng="es"><![CDATA[Nutrición parenteral]]></kwd>
<kwd lng="es"><![CDATA[Precipitación química]]></kwd>
<kwd lng="es"><![CDATA[Filtración]]></kwd>
<kwd lng="es"><![CDATA[Cobre]]></kwd>
<kwd lng="es"><![CDATA[Cisteína]]></kwd>
<kwd lng="es"><![CDATA[Aminoácidos]]></kwd>
</kwd-group>
</article-meta>
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