Clinical Aspects of Trace Elements: Zinc in Human Nutrition - Assessment of Zinc Status

Because the limiting and vulnerable zinc pool has not been identified, it becomes a challenge to determine which of the many zinc pools is most susceptible to deficiency. As a consequence, defining and assessing zinc status in the individual patient is a somewhat uncertain process. Laboratory analys...

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Main Authors: Michelle M Pluhator, Alan Br Thomson, Richard N Fedorak
Format: Article
Language:English
Published: Wiley 1996-01-01
Series:Canadian Journal of Gastroenterology
Online Access:http://dx.doi.org/10.1155/1996/412043
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author Michelle M Pluhator
Alan Br Thomson
Richard N Fedorak
author_facet Michelle M Pluhator
Alan Br Thomson
Richard N Fedorak
author_sort Michelle M Pluhator
collection DOAJ
description Because the limiting and vulnerable zinc pool has not been identified, it becomes a challenge to determine which of the many zinc pools is most susceptible to deficiency. As a consequence, defining and assessing zinc status in the individual patient is a somewhat uncertain process. Laboratory analysis of zinc status is difficult because no single biochemical criterion can reliably reflect zinc body stores. Many indexes have been examined in the hopes of discovering a method for the assessment of zinc nutriture. None of the methods currently used can be wholeheartedly recommended because they are fraught with problems that affect their use and interpretation. However, these methods remain in use for clinical and research purposes, though their benefits and drawbacks must always be acknowledged. Until an acceptable method of analysis is discovered, clinicians must rely for confirmation of zinc deficiency on a process of supplementing with zinc and observing the patient’s response. The main indexes (plasma/serum, erythrocyte, leukocyte, neutrophil, urine, hair and salivary zinc levels, taste acuity and oral zinc tolerance tests, and measurement of metallothionein levels) are reviewed. Measurement of plasma or erythrocyte metallothionein levels shows promise as a future tool for the accurate determination of zinc status.
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spelling doaj-art-da2bfc6e141e4e6b8bcef2c369fd21392025-02-03T06:00:02ZengWileyCanadian Journal of Gastroenterology0835-79001996-01-01101374210.1155/1996/412043Clinical Aspects of Trace Elements: Zinc in Human Nutrition - Assessment of Zinc StatusMichelle M Pluhator0Alan Br Thomson1Richard N Fedorak2Division of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, Alberta, CanadaDivision of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, Alberta, CanadaDivision of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, Alberta, CanadaBecause the limiting and vulnerable zinc pool has not been identified, it becomes a challenge to determine which of the many zinc pools is most susceptible to deficiency. As a consequence, defining and assessing zinc status in the individual patient is a somewhat uncertain process. Laboratory analysis of zinc status is difficult because no single biochemical criterion can reliably reflect zinc body stores. Many indexes have been examined in the hopes of discovering a method for the assessment of zinc nutriture. None of the methods currently used can be wholeheartedly recommended because they are fraught with problems that affect their use and interpretation. However, these methods remain in use for clinical and research purposes, though their benefits and drawbacks must always be acknowledged. Until an acceptable method of analysis is discovered, clinicians must rely for confirmation of zinc deficiency on a process of supplementing with zinc and observing the patient’s response. The main indexes (plasma/serum, erythrocyte, leukocyte, neutrophil, urine, hair and salivary zinc levels, taste acuity and oral zinc tolerance tests, and measurement of metallothionein levels) are reviewed. Measurement of plasma or erythrocyte metallothionein levels shows promise as a future tool for the accurate determination of zinc status.http://dx.doi.org/10.1155/1996/412043
spellingShingle Michelle M Pluhator
Alan Br Thomson
Richard N Fedorak
Clinical Aspects of Trace Elements: Zinc in Human Nutrition - Assessment of Zinc Status
Canadian Journal of Gastroenterology
title Clinical Aspects of Trace Elements: Zinc in Human Nutrition - Assessment of Zinc Status
title_full Clinical Aspects of Trace Elements: Zinc in Human Nutrition - Assessment of Zinc Status
title_fullStr Clinical Aspects of Trace Elements: Zinc in Human Nutrition - Assessment of Zinc Status
title_full_unstemmed Clinical Aspects of Trace Elements: Zinc in Human Nutrition - Assessment of Zinc Status
title_short Clinical Aspects of Trace Elements: Zinc in Human Nutrition - Assessment of Zinc Status
title_sort clinical aspects of trace elements zinc in human nutrition assessment of zinc status
url http://dx.doi.org/10.1155/1996/412043
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