منابع مشابه
Biological Markers in Environmental Epidemiology: Constraints and Opportunities
Biological markers (measurements made from biological media) are currently of great interest to epidemiologists in the field of environmental health. After placing markers within an historical and conceptual framework, this paper assesses the practical advantages and limitations of biological markers with respect to epidemiological methods and discusses criteria for the evaluation of markers. I...
متن کاملBiological markers in reproductive epidemiology: prospects and precautions.
We begin by defining "biological markers" for the purposes of the present review, distinguishing markers from other types of information, such as subject reports or conventional clinical data. We find the distinctions to be hazy. Next, from the standpoint of epidemiologists, we set out circumstances in which exposure markers might be needed, suggesting requirements for useful markers. We give t...
متن کاملHematological and Biological Markers of Neonatal Sepsis
Septicemia in neonates is the commonest cause of mortality. Early recognition and diagnosis of neonatal sepsis remains a challenge because of the variable and nonspecific clinical presentation. The laboratory criteria are often non specific and not fully reliable. The objective of this review is to highlight the various hematological and biological markers of neonatal sepsis. We searched ...
متن کاملBiological markers in nasal secretions.
Biological markers in nasal secretions provide valuable information on nasal pathophysiology. However, published data on biomarker concentrations in nasal fluids are remarkably inconsistent, and the bias due to different sampling techniques, has not yet been systematically evaluated. Concentrations of various protein were repeatedly determined in nasal secretions of 16 healthy volunteers. The p...
متن کاملBiological Markers of Fertility
Nordqvist, S. 2014. Biological Markers of Fertility. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine 1048. 74 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9085-0. Infertility affects 15 % of couples, which corresponds to 60 80 million worldwide. The microenvironments in which the oocyte, embryo and fetus mature are vital to the establishment...
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ژورنال
عنوان ژورنال: Journal of Epidemiology & Community Health
سال: 1991
ISSN: 0143-005X
DOI: 10.1136/jech.45.2.173-a