Selenium bioaccessibility in stomach, small intestine and colon: Comparison between pure Se compounds, Se-enriched food crops and food supplements

Lavu, Rama; Wiele, Tom Van de; Pratti, Varalakshmi Lalithya; Tack, Filip; Laing, Gijs Du

doi:10.1016/j.foodchem.2015.08.001

Cited by 79 publications

(46 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recent scientific reports have suggested that gut microbes affect many metabolic processes of the host, including its mineral metabolism. The microbiota is involved in the metabolism of calcium, iron, magnesium, selenium, copper, zinc and silver . Both in vitro and animal investigational models are in use.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Association between the gut microbiota and mineral metabolism

2017

View full text Add to dashboard Cite

The aim of this review is to present the most recent scientific evidence of interactions between the intestinal microbiota and minerals, and the effect of this interaction on the health of the host. The Web of Science database from the years 2013-2017 on this topic was reviewed. Numerous in vitro studies have shown that iron significantly affects the intestinal microbiota. However, Bifidobacteriaceae are capable of binding iron in the large intestine, thereby limiting the formation of free radicals synthesized in the presence of iron, and thus reducing the risk of colorectal cancer. Animal studies have revealed that supplementation with probiotics, prebiotics and synbiotics has a significant effect on bone calcium, phosphate and bone metabolism. The dynamic interaction between microbiota and zinc was shown. Human studies have provided evidence of the influence of probiotic bacteria on parathormone, calcium and phosphate levels and thus on bone resorption. Recent studies have produced new information mainly on the impact of the intestinal bacteria on the metabolism of calcium and iron. From a scientific perspective, the most urgent fields that remain to be investigated are the identification of all human gut microbes and new therapies targeting the interaction between intestinal bacteria and minerals. © 2017 Society of Chemical Industry.

show abstract

Section: Introductionmentioning

confidence: 99%

“…The intestinal microflora, probiotics and prebiotics significantly influence the bioavailability of minerals. The intestinal microbiota, probiotics and prebiotics can increase the absorption of minerals, especially iron and calcium, or decrease it …”

Section: Introductionmentioning

confidence: 99%

Association between the gut microbiota and mineral metabolism

2017

View full text Add to dashboard Cite

show abstract

“…Selenium is absorbed in the duodenum and caecum [648] and in the body is most highly concentrated in the thyroid gland [649]. Gut bacteria also require selenium and when it is not taken up by the host, colonic bacteria utilize it [650]. Upon selenium shortage, the microbiota gets to the point of competing with the host for selenium [651], which may result in reduced expression of selenoproteins in the host [652] and the microbiota may inhibit the enzymatic activity of deiodinases in the cecum and colon walls [653].…”

Section: Nuclear Receptorsmentioning

confidence: 99%

Enteric Microbiota–Gut–Brain Axis from the Perspective of Nuclear Receptors

Duszka

Wahli

2018

IJMS

View full text Add to dashboard Cite

Nuclear receptors (NRs) play a key role in regulating virtually all body functions, thus maintaining a healthy operating body with all its complex systems. Recently, gut microbiota emerged as major factor contributing to the health of the whole organism. Enteric bacteria have multiple ways to influence their host and several of them involve communication with the brain. Mounting evidence of cooperation between gut flora and NRs is already available. However, the full potential of the microbiota interconnection with NRs remains to be uncovered. Herewith, we present the current state of knowledge on the multifaceted roles of NRs in the enteric microbiota–gut–brain axis.

show abstract

“…The increased use of Se has led to its rising price and its increase in water contamination, which is in danger of presenting both ecological and human health risks (15,16). Therefore, the growing demand for Se in industrial technologies and the increased pollution effects of its byproducts into aquatic environments are rendering the recovery and recycling of this valuable element a very attractive global proposition.…”

Section: Importancementioning

confidence: 99%

Biomagnetic Recovery and Bioaccumulation of Selenium Granules in Magnetotactic Bacteria

Tanaka

Knowles

Brown

et al. 2016

Appl Environ Microbiol

View full text Add to dashboard Cite

Using microorganisms to remove waste and/or neutralize pollutants from contaminated water is attracting much attention due to the environmentally friendly nature of this methodology. However, cell recovery remains a bottleneck and a considerable challenge for the development of this process. Magnetotactic bacteria are a unique group of organisms that can be manipulated by an external magnetic field due to the presence of biogenic magnetite crystals formed within their cells. In this study, we demonstrated an account of accumulation and precipitation of amorphous elemental selenium nanoparticles within magnetotactic bacteria alongside and independent of magnetite crystal biomineralization when grown in a medium containing selenium oxyanion (SeO 3 2؊ ). Quantitative analysis shows that magnetotactic bacteria accumulate the largest amount of target molecules (Se) per cell compared with any other previously reported nonferrous metal/metalloid. For example, 2.4 and 174 times more Se is accumulated than Te taken up into cells and Cd 2؉ adsorbed onto the cell surface, respectively. Crucially, the bacteria with high levels of Se accumulation were successfully recovered with an external magnetic field. The biomagnetic recovery and the effective accumulation of target elements demonstrate the potential for application in bioremediation of polluted water. IMPORTANCEThe development of a technique for effective environmental water remediation is urgently required across the globe. A biological remediation process of waste removal and/or neutralization of pollutant from contaminated water using microorganisms has great potential, but cell recovery remains a bottleneck. Magnetotactic bacteria synthesize magnetic particles within their cells, which can be recovered by a magnetic field. Herein, we report an example of accumulation and precipitation of amorphous elemental selenium nanoparticles within magnetotactic bacteria independent of magnetic particle synthesis. The cells were able to accumulate the largest amount of Se compared to other foreign elements. More importantly, the Se-accumulating bacteria were successfully recovered with an external magnetic field. We believe magnetotactic bacteria confer unique advantages of biomagnetic cell recovery and of Se accumulation, providing a new and effective methodology for bioremediation of polluted water.

show abstract

Selenium bioaccessibility in stomach, small intestine and colon: Comparison between pure Se compounds, Se-enriched food crops and food supplements

Cited by 79 publications

References 29 publications

Association between the gut microbiota and mineral metabolism

Association between the gut microbiota and mineral metabolism

Enteric Microbiota–Gut–Brain Axis from the Perspective of Nuclear Receptors

Biomagnetic Recovery and Bioaccumulation of Selenium Granules in Magnetotactic Bacteria

Contact Info

Product

Resources

About