Influence of dietary iodine on the iodine content of pork and the distribution of the trace element in the body

2008 ◽  
Vol 47 (1) ◽  
pp. 40-46 ◽  
Author(s):  
Katrin Franke ◽  
Friedrich Schöne ◽  
Andreas Berk ◽  
Matthias Leiterer ◽  
Gerhard Flachowsky
Keyword(s):  
Trace Element ◽  
Iodine Content ◽  
The Body

scholarly journals Selenium and Inflammation— Potential Use and Future Perspectives

2015 ◽  
Vol 11 (02) ◽  
pp. 97 ◽  
Author(s):  
Leonidas H Duntas ◽  
Alicja Hubalewska-Dydejczyk ◽  
◽  
Keyword(s):  
Trace Element ◽  
Thioredoxin Reductase ◽  
The Body ◽  
Low Grade ◽  
Toll Like Receptor ◽  
Future Perspectives ◽  
Low Grade Inflammation ◽  
Light Chain Enhancer ◽  
Potential Use ◽  
Se Status

The essential trace element selenium (Se) is constitutively incorporated as selenocysteine, in proteins, among others in antioxidative selenoproteins, such as glutathione peroxidase(s) and thioredoxin reductase. Since chronic inflammation is thought to deplete Se stores in the body, Se supplementation should be considered in prolonged inflammatory states, Se being the trace element the most affected in chronic or low-grade inflammation. Se administration might also be beneficial in bacterial and viral diseases as well as metabolic and autoimmune diseases. In order to maintain a Se steady state, or “selenostasis,” Se supplementation, via either diet or compounds, is required to preserve the activity of selenoproteins in antioxidative and redox processes. Importantly, Se could play a pivotal role in the maintenance of homeostasis in infected tissues by inhibiting the proinflammatory toll-like receptor nuclear factor kappa-light-chain-enhancer of activated B cells signaling pathway and counteracting proinflammatory cytokine action. Finally, while Se status shows considerable promise as a valid marker of inflammatory and autoimmune disease, new functional Se nanoparticles and highly bioavailable selenomethionine compounds will in all probability provide a more efficacious and reliable intervention tool in both preventive and therapeutic disease management.

scholarly journals Preface

2006 ◽  
Vol 78 (1) ◽  
pp. viii
Author(s):  
Michael Bickel
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Trace Element Analysis ◽  
The Body ◽  
Research Centre ◽  
Food Contaminants ◽  
Joint Research ◽  
Element Analysis ◽  
Fortified Food ◽  
Animal Metabolism

Trace elements may have different functions in human and animal metabolism: some are toxic (e.g., Hg), others are essential to maintain good health (e.g., Ca), or they can be essential but also toxic, depending on the concentration in the body or in parts thereof (e.g., Se).The importance of various aspects of trace elements in relation to food is steadily increasing in the perception of the consumer and the respective authorities: food contaminants, essential and toxic elements, bioavailability and speciation, nutritional value and fortified food, reliable measurement of contents, etc. In addition, through the many minor and major food-related incidents during recent years the consumer is becoming more concerned about the quality and safety of food. As a result, research and development efforts in this area have also been increased and/or been redirected.TEF-2 was organized in Brussels 7-8 October 2004 by the Institute of Reference Materials and Measurements of the Joint Research Centre of the European Commission, with the support of the Department of Food Analysis, Institute of Agricultural and Food Biotechnology of the University of Warzaw, Poland and the Centre National de la Recherche Scientifique, France. It was carried through under the auspices of IUPAC.The objectives laid down for the symposium were- presenting state-of-the-art analytical methods for the enforcement of legal limits of trace elements in food;- disseminating new ideas and findings within the scientific community;- providing a forum for the exchange of new knowledge and experience between R&D, authorities, and industry; and- bringing together experts in the field with newcomers.TEF-2 was attended by 93 participants from 60 different institutions in 23 countries. It consisted of 26 lectures and 56 posters, structured according to the following four main topics:- trace elements in the food chain (from the environment to shelf product) including the effects of processing and of legislation- trace element bioavailability-toxicological and nutritional aspects- fortified food and supplementation legislation, manufacturing and labeling, standards- advances in trace element analysis in food matricesIt was emphasized that the field of trace elements in food is a lively research area, which generates interest and involvement from researchers, authorities, and industry, of course triggered and nurtured by the equally high interest of the consumer. A selection of the invited contributions to TEF-2 is presented in the subsequent seven papers in this issue.The importance of scientific exchange in this field was, again, recognized during TEF-2. Therefore, the continuation of this series of conferences was discussed, and the venue for the subsequent TEF-3 was decided. It will be organized by R. Lobinski of CNRS in Pau, France, at the beginning of October 2008.Michael BickelConference Editor

Isotopic Signatures and Trace Elements Concentrations in Breast Feathers of Male Caspian Terns and Double Crested Cormorants

2016 ◽  
Author(s):  
Diana Flood
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Feeding Ecology ◽  
Migratory Birds ◽  
The Body ◽  
Contaminant Exposure ◽  
Isotopic Signatures ◽  
Element Concentrations ◽  
Local Exposure ◽  
Caspian Tern

Migratory fish-eating birds occupy the highest trophic positions of aquatic ecosystems and as such serve as invaluable end-point indicators of the presence and bioaccumulation of anthropogenic contaminants. The birds’ main route of contaminant exposure is through food consumption. Migration can complicate this pathway by introducing numerous feeding habitats and thus, potential sources of contamination. Birds possess a number of depuration mechanisms that permit them to reduce their contaminant burden, namely the elimination of metals and mercury (Hg) through their feathers, feces and eggs. Trace element concentrations found in the feathers reflect the contaminants circulating in the body at the time of feather growth, representing local exposure and potential mobilization from internal tissues. Molt schedules and patterns are important considerations when selecting feathers to link feeding ecology with contaminants, as migratory birds’ feathers grow on and represent different sites. Stable nitrogen (δ15N) and carbon (δ13C) and hydrogen isotopes (δD) can reveal feeding ecology and habitat use during their annual cycle. Consequently, anthropogenic and natural sources of metal accumulation can be linked to those ecological variables. This study will examine the assimilation of trace element in male Caspian Tern (Sterna caspia) and Double-crested Cormorant (Phalacrocorax auritus) breast feathers grown on wintering sites and stable isotope signatures will be used to determine origin of contaminants. The aims for this study are to determine (i) whether isotopic signatures of feathers grown on wintering sites can explain variations in feather trace element concentrations, (ii) whether isotopes can determine the source of contamination, and (iii) whether differences in trace elements between individuals are determined by location of wintering ground or species.

OBSERVATIONS ON THE METABOLIC DISTURBANCES, GROWTH AND BEHAVIOUR OF YOUNG GOATS AFTER TRANSECTION OF THE PITUITARY STALK

1964 ◽  
Vol 45 (1) ◽  
pp. 84-98 ◽  
Author(s):  
P. M. Daniel ◽  
Marjorie M. L. Prichard
Keyword(s):  
Severe Hypoglycaemia ◽  
Hormone Replacement ◽  
Iodine Content ◽  
The Body ◽  
Pituitary Stalk ◽  
Blood Picture ◽  
Metabolic Disturbances ◽  
Essentially Normal ◽  
Target Organs ◽  
The Difference

ABSTRACT In young goats section of the pituitary stalk, with the insertion of a plate to ensure permanent separation of the pituitary gland from the hypothalamus, led to the development of metabolic disturbances including a severe hypoglycaemia. These complications were largely avoided by giving hormone replacement therapy for the first few weeks after operation. The growth of the body and of the target organs (thyroids, adrenals, gonads) was greatly retarded during the first 2 to 4 months; after this the animals increased in size and weight more normally, but the target organs remained very small. The protein-bound iodine content of the serum was low. The blood picture was essentially normal. Although the clinical condition of the goats improved noticeably after a few months their activity continued to be reduced and their behaviour subdued by comparison with normal goats. The difference in the condition of twin goats, in one of which a plate was not inserted, is described.

scholarly journals Iodine Content of Salt Use after Years of Universal Iodization Policy and Knowledge on Iodized Salt among Households in the Sissala East Municipality in Upper West Region of Ghana

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Prince Kubi Appiah ◽  
Clement Tiimim Yanbom ◽  
Martin Amogre Ayanore ◽  
Alex Bapula
Keyword(s):  
Public Health ◽  
Iodine Deficiency ◽  
Educational Level ◽  
Great Influence ◽  
Iodine Content ◽  
The Body ◽  
Iodized Salt ◽  
Health Concern ◽  
Good Knowledge ◽  
Salt Iodization

Background. Iodine deficiency is a global public health concern as it leads to inadequate production of thyroid hormone in the body, causing too many destructive consequences on the roles and functions of different human organs and muscles including brain growth and can manifest into many damaging effects such as intestinal cerebral impedance, cancer of intestine, breast disorders, and physical deformities like goitre and cretinism to one’s body. Despite all these negative effects, there are several important public health programs including universal salt iodization (USI) to improve on households’ iodine intake, notwithstanding this, countless families are still eating foods containing less iodine or no iodine at all. Hence, this study examined the intake of iodized salt after years of universal salt iodization and the knowledge on iodized salt among households in the Sissala East Municipality. Method. A descriptive cross-sectional study was adopted to collect data for the study. Data were collected from women in charge of household meal preparation using a semistructured questionnaire and rapid field iodine test kits. The Statistical Package for Social Sciences (SPSS) version 20 was used for the data analysis and presented in tables and graphs. p value <0.05 was considered as statistically significant. Findings. Only 41.4% of the households have good knowledge on benefits of iodized salt and dangers associated with iodine deficiency. It was realized that the health workers (46.6%) and television were the main sources of information on iodized salt. Household salt usage with adequate (>15 ppm) levels of iodine was 44.0%; however 85.9% of the salts were stored in covered containers. The study showed significant associations between knowledge on iodized salt and educational level (p≤0.001), occupation (p=0.043), religion (p=0.027), and ethnic lineage (p=0.046). Also, the use of iodized salt showed associations with the educational level (p≤0.001), occupation (p=0.003), religion (p=0.042), and knowledge on iodized salt (p≤0.001). Conclusions. Only about 4 in 10 households were consuming salt with adequate iodine, and this coverage is very low compared with the 90% or more coverage recommended by WHO/UNICEF/ICCIDD. Having secondary and tertiary education and having good knowledge of iodized salt has a great influence on the use of iodized salt; however, with this low level of knowledge of importance of iodized salt among women responsible for house food preparations, there is the need for health professionals to intensify education and promotion on iodized salt in the area and to monitor and verify iodine content of salts produced and sold in the market all times, as the source of the salt might have contributed to the low levels of iodine in the household salt.

scholarly journals PHYSICAL ACTIVITY AND TRACE ELEMENT METABOLISM

2020 ◽  
Vol 21 (2) ◽  
pp. 3-12
Author(s):  
A.A. Skalny ◽  
Keyword(s):  
Physical Activity ◽  
Trace Elements ◽  
Trace Element ◽  
The Body ◽  
Cobalt Chromium ◽  
Essential Trace Elements ◽  
Trace Element Metabolism ◽  
The Impact ◽  
The Relationship ◽  
Insight Into

Currently, there is no doubt about the prevailing influence of the level of physical activity of an individual on the functional state of the body. However, the available literature data on the impact of physical stress on the body's supply of trace elements and their distribution in tissues are largely contradictory. This review of available literature data provides an insight into the relationship between physical activity and microelement homeostasis. The influence of human physical activity on the exchange of toxic (lead, cadmium, Nickel, etc.) and essential trace elements, such as iron, selenium, copper, cobalt, chromium, and zinc is reviewed. Based on the analyzed works, it is concluded that in order to correct the metabolic and microelement status of a person during physical activity, the most reasonable and necessary is the modulation of homeostasis of zinc and selenium.

scholarly journals Trace element status in old people of European and Asian parts of the North of russia

2019 ◽  
Vol 95 (5) ◽  
pp. 432-439
Author(s):  
A. L. Gorbachev ◽  
Elena A. Lugovaya ◽  
E. M. Stepanova
Keyword(s):  
Trace Element ◽  
Regional Differences ◽  
Essential Elements ◽  
The Body ◽  
The North ◽  
Ecological Features ◽  
Geographical Regions ◽  
Hair Samples ◽  
Trace Element Status ◽  
The City

To determine age-relatedpeculiarities of trace element system in oldpeople, residing in different natural and geographical regions, the content of 25 trace elements in hair samples of women from Arkhangelsk (average age is 87,0±0,98 years) and Magadan (average age is 80,1±1,25 years) was determined by spectrometric methods. In both groups there was established element misbalance characterized by lower concentration of such essential elements as Ca, Mg, Co, Cu and higher concentration of Na. The excess of K and Zn is more expressed in hair of female residents of Arkhangelsk in comparison with the city of Magadan there was revealed significantly more higher content of aluminum, boron, silicon, in the city of Magadan there are significantly higher concentrations of selenium and tin. According to the frequency of occurrence the excess of elements in the body of residents of the city of Arkhangelsk is comparable to that of residents of the city of Magadan, but has its own features. In Arkhangelsk there is more pronounced the excess ofpotassium, there was found high content of zinc, whereas in the city of Magadan there was revealed an excess of manganese and arsenic. Square of the figure, reflecting the deficiency of elements in female residents of the city of Magadan is more than in the city of Arkhangelsk, which is manifested by larger deficiency of chromium, zinc, iron. Identified regional differences in the content of macro- and microelements are related to biogeochemical and ecological features of the regions, which can determine the specifics of the aging diseases and time of their occurrence.

scholarly journals Determination of cadmium,lead,copper and zinc in Yemeni khat by anodic stripping voltammetry

2003 ◽  
Vol 9 (1-2) ◽  
pp. 28-36
Author(s):  
M. H. Matloob
Keyword(s):  
Trace Element ◽  
Anodic Stripping Voltammetry ◽  
Daily Intake ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
The Body ◽  
Leafy Vegetables ◽  
World Health ◽  
Anodic Stripping ◽  
Cu And Zn

Trace element concentrations in khat were investigated as they can disturb trace element levels in the body. Cadmium [Cd], lead [Pb], copper [Cu] and zinc [Zn] levels in khat and 6 leafy vegetables commonly consumed in the Republic of Yemen were determined by differential pulse anodic stripping voltammetry after wet digestion of the organic matter. Khat had significantly higher concentrations of Cu and Zn than did the leafy vegetables, but similar amounts of Cd and Pb. The average daily intake of khat consumers of Cd, Pb, Cu and Zn from khat only was estimated to be 2.0-10.2 micro g/day, 23.6-118.0 micro g/day, 530-2654 microg/day and 662-3311 micro g/day respectively. Although high, these values were within Food and Agriculture Organization/World Health Organization tolerance limits

scholarly journals Using amphipods as bioindicators of metal pollution in the marine environment

2021 ◽  
Author(s):  
◽  
Monique Francis Holmes
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Trace Element ◽  
Marine Environment ◽  
Spatial Scales ◽  
Seawater Temperature ◽  
Negative Relationship ◽  
Dry Weight ◽  
The Body ◽  
Element Concentrations

<p>Heavy metals in the marine environment are a worldwide issue due to their toxicity, non-biodegradability and their ability to accumulate and magnify in organisms. Increased human activity has caused higher inputs of heavy metals, resulting in escalated pressures on delicate coastal ecosystems. A means of assessing the natural environment and how it is changing in response to pollution and other environmental degradation is through the use of biological indicator or biomonitor species. These organisms provide information on the bioavailability of metals present in the environment. In recent years amphipods, a diverse order of small crustaceans, have been increasingly used as bioindicators of disturbed aquatic communities. They are widespread and important components of many food webs, and likely to be frequently exposed to metal contamination through both sediment and seawater. The aim of this research was two-fold: 1) to use amphipods to examine variation across sites and species in concentration of 20+ trace elements and 2) to examine whether the uptake of two metals, copper (Cu) and neodymium (Nd), is mediated by the presence of the other metal or an elevated seawater temperature.  To investigate variation of trace element concentrations across sites, the amphipod Eusiroides monoculoides was collected from three sites in the Wellington region, approximately 5 km apart: Oriental Bay, Evans Bay and Point Halswell. To investigate differences amongst species comparisons were made between Eusiroides monoculoides, Apohyale papanuiensis and Sunamphitoe mixtura when they occurred at the same site. Analysing the trace element concentrations of 36 metals was done using an Inductively Coupled Mass Spectrometer (ICPMS). Overall, although these sites were not greatly distant from each other, there were differences among sites. Evans Bay in general had the highest concentration of trace elements. Further, there were also species-specific differences and S. mixtura was the species with the highest concentration of trace elements. There was also a size effect, where the average dry weight of S. mixtura was negatively related to the concentration of trace elements in the body.  To assess the effects of heavy metals Cu and Nd in both an ambient (14 °C) and elevated (20 °C) temperature, an experiment was run at Victoria University’s Coastal Ecology Lab (VUCEL). Sand hoppers, Bellorchestia quoyana, were collected from a single site in Wellington (Scorching Bay) and assigned to eight treatments: ambient and warm controls in raw seawater and ambient and warm seawater doped with Cu, Nd and Cu and Nd together. Amphipods from treatments with Cu and Nd added had significantly higher concentrations of these metals from the controls, however temperature had no effect, and neither was there an interaction between the metals. Similar to S. mixtura from the field study, dry weight of B. quoyana was negatively related to the concentration of trace elements in the body.  Results from this work demonstrate that when using amphipods as bioindicator species it is important to consider species and size specific effects. This thesis also provides baseline data for 20+ elements from three Wellington sites and demonstrates that there can be unexpected variation across relatively small spatial scales. The laboratory experiment did not yield results that coincided with the consensus of the literature. The experiment showed that at least in this case, temperature did not mediate the uptake of metals and there was a negative relationship between size and metal uptake.</p>

scholarly journals Upregulation of TSHR, TTF-1, and PAX8 in Nodular Goiter Is Associated with Iodine Deficiency in the Follicular Lumen

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Huibin Huang ◽  
Lijun Chen ◽  
Bo Liang ◽  
Huiyao Cai ◽  
Qingyan Cai ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Western Blot ◽  
Thyroid Dysfunction ◽  
Nodular Goiter ◽  
Iodine Content ◽  
Thyroid Stimulating Hormone ◽  
The Body ◽  
Normal Thyroid ◽  
Genes Expression ◽  
Diffuse Goiter

Objective. It has been testified that iodine regulates thyroid function by controlling thyroid-restricted genes expression and is closely related to diffuse goiter and thyroid dysfunction. However, the effects of follicular lumen iodine, the main form of iodine reserve in the body, on thyroid-restricted genes in nodular goiter are poorly understood. In this study, correlations between follicular lumen iodine and the expressions of thyroid stimulating hormone receptor (TSHR), its transcription factors TTF-1, and PAX8 in nodular goiter were investigated.Patients. In this study, 30 resection specimens clinically histopathologically confirmed to have nodular goiter and 30 normal thyroid specimens from adjacent tissues of nodular goiter are used.Measurement. Western blot immunohistochemistry was performed to assay TSHR, TTF-1, and PAX8 in thyrocytes of nodular goiter as well as in extranodular normal thyroid tissues. Meanwhile, follicular lumen iodine of both nodular goiter and extranodular normal thyroid tissues was detected as well.Results. The TSHR, TTF-1, and PAX8 in nodular goiter were significantly higher than those in the controls. The iodine content in nodular goiter was significantly lower than those in control tissues.Conclusion. Upregulation of TSHR, TTF-1, and PAX8 is associated with low follicular lumen iodine content in nodular goiter.

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