Influence of transition metal ions on NMR proton T1 relaxation times of serum, blood, and red cells

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dc.contributor.authorYilmaz, A
dc.contributor.authorYurdakoç, M
dc.contributor.authorIsik, B
dc.date.accessioned2024-04-24T15:59:38Z
dc.date.available2024-04-24T15:59:38Z
dc.date.issued1999
dc.departmentDicle Üniversitesien_US
dc.description.abstractThe spin-lattice relaxation rates (1/T1) of serum, whole blood, and red cells were measured vs several concentrations of transition metal ions. For comparative purposes, the similar experiments were repeated in water. The rates show a linear dependence on concentration of each ion for water, but nearly a linear dependence for blood and its constituents. The influence of each ion on 1/T1 in a sample was expressed by the slope (relaxivity) of the least-squares fitting of 1/T1 vs ion concentration. The relaxivities of Mn(II) in serum and of Fe(III) in serum and blood are greater than those in water, whereas the relaxivities of these ions in the other cases and of all the other ions in call cases are smaller than those in water. However, the relaxivity data show that Cr(III) in serum and blood affects the 1/T1 rates. The ratio of relaxivity of each sample to that of water is known as proton relaxation enhancement (PRR) factor (epsilon). The epsilon factors for present data suggest that the added ions are bound to proteins, and only Mn(II) in serum and Fe(III) in blood and serum are accessible to water.en_US
dc.identifier.doi10.1007/BF02784073
dc.identifier.endpage193en_US
dc.identifier.issn0163-4984
dc.identifier.issue2en_US
dc.identifier.pmid10073424
dc.identifier.scopus2-s2.0-0032922895
dc.identifier.scopusqualityQ1
dc.identifier.startpage187en_US
dc.identifier.urihttps://doi.org/10.1007/BF02784073
dc.identifier.urihttps://hdl.handle.net/11468/14188
dc.identifier.volume67en_US
dc.identifier.wosWOS:000078828400008
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoenen_US
dc.publisherHumana Press Incen_US
dc.relation.ispartofBiological Trace Element Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNmren_US
dc.subjectT1en_US
dc.subjectIons And Paramagnetic Contributionen_US
dc.titleInfluence of transition metal ions on NMR proton T1 relaxation times of serum, blood, and red cellsen_US
dc.titleInfluence of transition metal ions on NMR proton T1 relaxation times of serum, blood, and red cells
dc.typeArticleen_US

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