Trace metals in man: Strontium and barium

Schroeder, Henry A.; Tipton, Isabel H.; Nason, Alexis P.

doi:10.1016/0021-9681(72)90150-6

Cited by 250 publications

(170 citation statements)

References 27 publications

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“…Although the principles of BWP reconstruction using Ba concentrations are similar to that for Sr, there is a lack of information on the uptake and metabolism of Ba (Schroeder et al, 1972). As a divalent cation, Ba functions like Ca and Sr in the ecosystem and follows the same biopurification process in which Ba/Ca decreases with the increasing trophic position (Burton et al, 1999).…”

Section: Ca-standardized Ba Concentrationsmentioning

confidence: 99%

“…As a divalent cation, Ba functions like Ca and Sr in the ecosystem and follows the same biopurification process in which Ba/Ca decreases with the increasing trophic position (Burton et al, 1999). Barium are poorly absorbed through the gastrointestinal tract (Schroeder et al, 1972), and barium salts, except for sulfate forms, are toxic in the human body (Browning, 1969). The Ba/Ca ratios of umbilical cord sera are lower than those of from exclusively breastfed infants, and adult sera values fall between them (Krachler et al, 1999).…”

Section: Ca-standardized Ba Concentrationsmentioning

confidence: 99%

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Reconstruction of breastfeeding and weaning practices using stable isotope and trace element analyses: A review

Tsutaya

Yoneda

2014

American J Phys Anthropol

196

188

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Biogeochemical methods using stable isotopes and trace elements have been increasingly developed and applied to reconstruct modern and ancient breastfeeding and weaning practices of mammals, including humans, because they offer direct proxies for the dietary intake of subadults. Carbon, nitrogen, and oxygen isotopes have been used to evaluate breast milk lipid, protein, and water intake, respectively. Carbon and sulfur isotopes have been used to estimate the content of weaning foods. The elemental concentrations of Sr and Ba in subadult tissues differ because of the dietary change during the weaning process. For analyses, various tissues have been used, such as hair, nail, blood, and feces for modern mammals and bone and teeth for ancient ones. Of these, trace element analysis of tooth enamel offers a good opportunity for the reconstruction of breastfeeding and weaning practices of the more distant past at finer resolution, although further understanding of the metabolism of trace elements is necessary. There are various tissue-and element-specific advantages and disadvantages, and a combination of different proxies can illuminate practices from various viewpoints. Finally, applying the geochemical reconstruction of breastfeeding and weaning practices to human ecology, primatology, and paleoanthropology is important; basic studies of the underlying physiological mechanisms and technical improvements in the analyses will further highlight avenues for future research. Yrbk Phys Anthropol 156:2-21, 2015. V C 2014 American Association of Physical AnthropologistsThe reconstruction of breastfeeding and weaning practices (BWPs) of ancient human and other mammalian species is one of the most important fields in anthropology, archaeology, evolutionary biology, and history. Infant feeding practices affect the overall health of the population because diet, health status, and growth at a young age have profound effects on an individual's later life (Dettwyler and Fishman, 1992;Katzenberg et al., 1996;WHO, 1998WHO, , 2009Lewis, 2007). Breastfeeding and weaning practices can be viewed from the evolutionary perspectives of life history theory, parental investment, child development, social system, and reproductive strat-

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Section: Ca-standardized Ba Concentrationsmentioning

confidence: 99%

Section: Ca-standardized Ba Concentrationsmentioning

confidence: 99%

Reconstruction of breastfeeding and weaning practices using stable isotope and trace element analyses: A review

Tsutaya

Yoneda

2014

American J Phys Anthropol

196

188

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“…Natural water sources, such as rivers, springs, and wells, contain smaller amounts of the element ranging from 0.021 mg/l up to 0.375 mg/l. (3,4) Strontium is a natural constituent of food and beverages. Meat, poultry, vegetables, and fruit contain relatively low amounts of the element (range 0.3-5.1 mg/kg), whereas in cereals, grains, and seafood it may be present at concentrations of up to 25 mg/kg.…”

mentioning

confidence: 99%

“…Hence, the strontium content of the human diet and the daily intake of the element varies according to the geographic area and the type of food consumed. (4)(5)(6) A limited number of the series of radioactive strontium isotopes have been applied to the fields of medicine, biology, and biochemistry. The therapeutic potential of intravenously administered strontium-89 was first recognized in 1940 with the discovery that it could be used for the treatment of bone pain from metastatic prostate cancer.…”

mentioning

confidence: 99%

Strontium and Bone

Cabrera

Schrooten

Broe

et al. 1999

Journal of Bone and Mineral Research

163

107

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“…[24][25][26][27][28][29][30] A number of values for chemical element mass fractions were not expressed on a dry mass basis by the authors of the cited references. However, we calculated these values using published data for water (75%) 40 and ash (4.16% on dry mass basis) 41 contents in thyroid of adults.…”

Section: Discussionmentioning

confidence: 99%

Age-Related Changes of Some Trace Element Contents in Intact Thyroid of Males Investigated by Energy Dispersive X-ray Fluorescent Analysis

Zaichick¹

2017

mojgg

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Abbreviations: 109Cd EDXRF, 109cd radionuclide-induced energy-dispersive x-ray fluorescence analysis; CRM/SRM, certified/ standard reference materials; IAEA, international atomic energy agency IntroductionThe endocrine organs, including the thyroid gland, undergo important functional changes during aging and a prevalence of thyroid dysfunction is higher in the elderly as compared to the younger population.1,2 Advancing age is known to influence the formation of adenomatous goiter and thyroid cancer.3 The prevalence of thyroid nodules is increased in the elderly, reaching a frequency of nearly 50% by the age of 65.4 Both prevalence and aggressiveness of thyroid cancer increase with age.2 Women are affected by thyroid nodule and cancer two to five times more often than men, but in age over 65 years a prevalence of thyroid cancer is higher in men. [2][3][4][5] Aging is a complex process involving biochemical and morphologic changes in single cells, in organs, and in the whole organism. One of the most generally accepted explanations of how aging occurs at the molecular level is the oxidative stress hypothesis. 6 Reactive oxygen species (ROS) are widely considered to be a causal factor not only in aging but in a number of pathological conditions, including carcinogenesis. Aging, considered as an impairment of body functions over time, caused by the accumulation of molecular damage in DNA, proteins and lipids, is also characterized by an increase in intracellular oxidative stress due to the progressive decrease of the intracellular ROS scavenging.7 Oxidative damage to cellular macromolecules which induce cancer can also arise through overproduction of ROS and faulty antioxidant and/or DNA repair mechanisms. 8Overproduction of ROS is associated with inflammation, radiation, and some other factors, including overload of some trace elements, in both blood and certain tissues, or deficiency of other trace elements with antioxidant properties. [9][10][11][12][13][14][15] Studies have shown that the imbalance in the composition of trace elements may cause different types of pathology. The importance of appropriate levels of many trace elements is indisputable, due to their beneficial roles when in specific concentration ranges, while on the other hand they can cause toxic effects with excessively high or low concentrations. 12In our previous studies [16][17][18][19][20][21][22][23][24] the high mass fraction of iodine and some other trace element were observed in intact human thyroid gland when compared with their levels in non-thyroid soft tissues of the human body. However, some questions about the age-dependence of trace element mass fraction in thyroid of adult and, particularly, elderly females still remain unanswered. One valuable way to elucidate the situation is to compare the mass fractions of trace elements in young adult (the control group) with those in older adult and geriatric thyroid. The findings of the excess or deficiency of trace element contents in thyroid and the perturbations of their relative proport...

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Trace metals in man: Strontium and barium

Cited by 250 publications

References 27 publications

Reconstruction of breastfeeding and weaning practices using stable isotope and trace element analyses: A review

Reconstruction of breastfeeding and weaning practices using stable isotope and trace element analyses: A review

Strontium and Bone

Age-Related Changes of Some Trace Element Contents in Intact Thyroid of Males Investigated by Energy Dispersive X-ray Fluorescent Analysis

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