Effect of a combined iodine and selenium supplementation on I and Se status of cows and their calves

Guyot, Hugues; Oliveira, Laurent Alvès de; Ramery, Eve; Beckers, Jean‐François

doi:10.1016/j.jtemb.2011.02.003

Cited by 16 publications

(24 citation statements)

References 31 publications

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“…An increased blood serum Se concentration in the ewes with high I and Se (HSeI) intake to the 60th day post partum shows the infl uence I on Se utilisation and is in accordance with Guyot et al [9] and Aghwan et al [21], who found a synergistic relationship between I and Se metabolism when both microelements were supplemented simultaneously. Higher I supplementation in HSeI group also led to a signifi cant (P< 0.01) increase of Se content in urine compared to the group HSe.…”

Section: Discussionsupporting

confidence: 85%

“…3A) as reported by Wichtel et al [27]. However, this result is contrary to Guyot et al [9], who reported a higher blood T3 level in cows with high I and Se supplementation. Guyot et al [9] also observed in their study with combined I and Se supplementation in cows, that a high I (5.45 mg/kg DM) and Se (0.45 mg/kg DM) diet resulted in a decrease of blood T4 level.…”

Section: Discussioncontrasting

confidence: 50%

“…The form of I and Se supplementation in animal diets can be either inorganic [9] or organic [10]. It is generally accepted that the inorganic form is not utilized as effi ciently as the organic form [6].…”

Section: Introductionmentioning

confidence: 99%

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Effect Of Organic Selenium And Iodine Supplementation On Selenium And Thyroid Hormones Status Of Lactating Ewes And Lambs

et al. 2015

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The aim of this research was to determine the infl uence of 56-days (from day 4 to day 60 post partum) of simultaneous supplementation of selenium (Se) and iodine (I) enriched Chlorella algae on blood and urine Se concentrations and thyroid hormone levels in ewes and lambs. The study included 18 Šumava sheep ewes and their lambs divided into three groups (CON, HSe, HSeI). Selenium and I content in the diet of ewes measured 0.2 and 0.7 mg (CON), 0.4 and 0.7 mg (HSe), 0.4 and 1.3 mg (HSeI) per kg of dry matter. During the experimental period a signifi cantly higher blood serum Se concentration was determined in ewes of the HSeI group (P< 0.001) and urine (P< 0.01). A signifi cantly higher (P< 0.001) blood serum Se concentration was found also in lambs of the HSeI group. The highest Se concentration in the blood serum was recorded in ewes (128.0 μg/L) and lambs (74.2 μg/L) on the 26th day of the experiment. The results demonstrate a higher utilization of Se administered in the organic form accompanied by a higher intake of I applied also in the organic form. Plasma thyroid hormone levels in ewes were not explicitly affected by higher Se and I supplementation. A higher Se concentration in the lambs' blood serum led to signifi cantly higher (P< 0.05) T3 levels up to 30 days post birth.

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Section: Discussionsupporting

confidence: 85%

Section: Discussioncontrasting

confidence: 50%

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Effect Of Organic Selenium And Iodine Supplementation On Selenium And Thyroid Hormones Status Of Lactating Ewes And Lambs

et al. 2015

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“…For example, the thyroid and pituitary are more resistant to dietary selenium compared to the liver [51]. In addition, interaction effects between selenium and other dietary nutrients such as iodine exists, and some of these interactions that modify thyroid hormone metabolisms and antioxidant status have been described elsewhere [52,53,54]. It was not possible to consider these other dietary nutrients in this study.…”

Section: Discussionmentioning

confidence: 99%

Selenium, Selenoprotein Genes and Crohn’s Disease in a Case-Control Population from Auckland, New Zealand

et al. 2012

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New Zealand has one of the highest incidence rates of Crohn’s Disease (CD), whilst the serum selenium status of New Zealanders is amongst the lowest in the world. A prospective case-control study in Auckland, New Zealand considered serum selenium as a potential CD risk factor. Serum selenium levels were significantly lower in CD patients compared to controls (101.8 ± 1.02 vs. 111.1 ± 1.01 ng/mL) (p = 5.91 × 10−8). Recent detailed studies in the United Kingdom have suggested an optimal serum level around 122 ng/mL, making the average CD patient in New Zealand selenium deficient. Of the 29 single nucleotide polymorphisms (SNPs) tested, 13 were found to significantly interact with serum selenium on CD. After adjustment for multiple testing, a significant interaction with serum selenium on CD was found for three SNPs, namely rs17529609 and rs7901303 in the gene SEPHS1, and rs1553153 in the gene SEPSECS. These three SNPs have not been reported elsewhere as being significantly associated with selenium or CD. It is unclear as to whether lower selenium levels are a cause or an effect of the disease.

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“…Iodine is a micronutrient that is essential for the proper functioning of human and animal organisms, in the prenatal period as well as during the initial years of life (Walker et al 2007;Charlton et al 2010;MelseBoonstra and Jaiswal 2010;Guyot et al 2011). Despite the extensive programme of salt iodisation, approximately 30 to 38 % of the entire human population suffers from inadequate iodine intake.…”

Section: Introductionmentioning

confidence: 99%

The role of exogenous humic and fulvic acids in iodine biofortification in spinach (Spinacia oleracea L.)

2015

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Background and aims The strong sorption of iodine in soils is a major factor that limits its uptake by plants. The aim of this study was to evaluate the influence of Humistar (a concentrate of exogenous humic acids 12 % w/w and fulvic acids 3 % w/w; abbreviated: HU) applied with KI or KIO 3 on the efficiency of iodine biofortification, yield and the accumulation of undesirable compounds in spinach. Methods Methods of iodine application with or without HU were tested in two pot experiments and a hydroponic study with spinach cultivation. The spinach biomass and the content of iodine, soluble oxalates, Cd and Pb in leaves were determined. The physicochemical properties and chemical composition of the soil and media were analysed. ResultsNo negative influence of iodine and HU on spinach yield was observed. Fertigation with iodine resulted in a higher efficiency of iodine biofortification than its application pre-sowing (particularly for KIO 3 ), with no increase in the Cd and Pb content in spinach plants compared to the control. Conclusion The improvement of iodine uptake and root-to-leaf transfer (represented by higher transfer factor values) in spinach can be obtained by the application of HU via plant fertigation with IO 3 − . The level of soluble oxalates in spinach grown in the pot experiments was not affected.

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Effect of a combined iodine and selenium supplementation on I and Se status of cows and their calves

Cited by 16 publications

References 31 publications

Effect Of Organic Selenium And Iodine Supplementation On Selenium And Thyroid Hormones Status Of Lactating Ewes And Lambs

Effect Of Organic Selenium And Iodine Supplementation On Selenium And Thyroid Hormones Status Of Lactating Ewes And Lambs

Selenium, Selenoprotein Genes and Crohn’s Disease in a Case-Control Population from Auckland, New Zealand

The role of exogenous humic and fulvic acids in iodine biofortification in spinach (Spinacia oleracea L.)

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