R. Sturza et al./Chem.J.Mold. 2008, 3 (1), 77-84Data received in the result <strong>of</strong> our research certify that the consumption <strong>of</strong> iodine in large quantities leads todecrease <strong>of</strong> T 3and T 4hormone secretion and increase <strong>of</strong> TSH concentration in comparison with the group <strong>of</strong> rats thatreceived 1-fold iodine dose. It can be explained by decrease <strong>of</strong> thyroid gland ability to accumulate iodine and largequantities <strong>of</strong> iodine removed from the organism through kidneys.It is necessary to mark, that iodinated sunflower oil and margarine contributed to better use <strong>of</strong> feedstuff for rats.Received data coincide with the messages <strong>of</strong> Alioshin, Bataev, Georgievskii [8, 19, 20].Effect <strong>of</strong> iodine intake on iodine content <strong>of</strong> thyroid gland.Iodine content in thyroid glands characterizes the intensity and direction <strong>of</strong> iodine metabolism <strong>of</strong> animals. Ourinvestigations on iodine accumulation in thyroid glands confirmed the positive influence <strong>of</strong> optimal iodine level (3 g/rat) on organism <strong>of</strong> experimental animals. Our data on investigation <strong>of</strong> iodine content in thyroid glands agree with theworks <strong>of</strong> Baranov and Seleatitskaia [10, 21].Feeding <strong>of</strong> experimental animals with optimal iodine level (3 g/rat) increased the functional activity <strong>of</strong> thyroidgland and iodine concentration in it (table 2). The obtained data are congruent with the investigation results <strong>of</strong> Fenchencoand Kashin [16, 14].Group <strong>of</strong> ratsEffect <strong>of</strong> iodine intake on iodine content <strong>of</strong> thyroid glandIodine content <strong>of</strong>dietWeight <strong>of</strong> thyroidglandThyroid iodineg/rat mg mg%Table 2I 0,4 0,1 25,8 1,5 4,8 0,9II 0,4 0,1 34,2 1,7 1,2 0,7III 0,6 0,2 18,2 0,9 1,1 0,6IV 3,5 0,8 24,8 2,2 5,4 0,7V 3,6 0,7 31,4 3,8 13,0 1,5VI 30 1,9 39,4 5,7 28,0 1,9*average daily quantity <strong>of</strong> feed for rats– 12 4 gThe investigation data indicate that iodinated fats influence on metabolism results leading to the accumulation <strong>of</strong>the iodine by animals, as a result <strong>of</strong> more effective digestion and assimilability <strong>of</strong> iodine from present connections.In summary our investigations, based on estimation <strong>of</strong> iodine content in the thyroid glands <strong>of</strong> experimentalanimals, proved that in experimental hypothyroidism the iodine content <strong>of</strong> rats decreased from 4,8 to 1,2 mg% (groupsI and II), and on addition <strong>of</strong> iodinated fats with iodine content (3 g/rat) the iodine quantity in thyroid gland increasedfrom 5,4 to 13,0 mg% (groups III and IV).On addition <strong>of</strong> considerable quantities <strong>of</strong> iodine (30 g/rat) the iodine content also increased, but the capacity <strong>of</strong>thyroid gland for iodine accumulation is decreased (figure 5).Analysis <strong>of</strong> iodine content in thyroid glands, which was obtained from rats after correction <strong>of</strong> iodine-criticalstate, at the expense <strong>of</strong> introduction in their ration <strong>of</strong> iodinated fats gives the possibility to underline the improvement<strong>of</strong> functioning and the capacity <strong>of</strong> iodine accumulation by thyroid gland.Literature data and the results <strong>of</strong> proper research on laboratory animals lets us conclude concerning thesafety, bioavailability and simplicity <strong>of</strong> use <strong>of</strong> organically connected iodine forms as iodinated fats (vegetable oil,margarine).81
R. Sturza et al./Chem.J.Mold. 2008, 3 (1), 77-846283053,613Groups <strong>of</strong> investigated rats431,10,63,55,4Thyroid iodine21,20,4Iodine content <strong>of</strong> the diet10,44,8Fig. 5. Influence <strong>of</strong> consumption by animals <strong>of</strong> iodinated fats on the process <strong>of</strong> its metabolism and the accumulationcapacity by thyroid glandConclusions1. Banding <strong>of</strong> iodine and vegetable oil gave the fixed organic connection with increased biological value, whichis available for obtaining and does not require creation <strong>of</strong> additional technologies.2. After introduction <strong>of</strong> iodinated fat products in the ration <strong>of</strong> hypothyroid animals, they manifest biologicalactivity. Iodinated fat products contribute to restoration <strong>of</strong> such thyroid hormones levels as T 3, T 4and TSH, i.e. functionalactivity <strong>of</strong> thyroid glands.3. Investigational data indicate that iodinated fats influence on metabolism processes and contribute to theaccumulation <strong>of</strong> the iodine by animal organism, as a result <strong>of</strong> more effective digestion and assimilability <strong>of</strong> iodine frompresent connections.4. Application <strong>of</strong> iodinated fats supplies the lack <strong>of</strong> iodine in organism, does not have side effects and can beused in prevention <strong>of</strong> diseases, provoked by iodine deficiency.ExperimentalSun fl ower oil fortifi cation with iodineIn this study,doubly refined and deodorized oil was used (purchased from local stores) [STAS – 1129-93] [22].To obtain the iodinated sunflower oil, chemicaly pure, crystalline iodine (I 2) [STAS – 4159- 79] [23] was added.After the establishement <strong>of</strong> the equilibrium, iodinated oil was used as sample for the present study.Manufacturing <strong>of</strong> iodinated margarineIn proposed iodinated margarine, a part <strong>of</strong> sun-flower oil was replaced by iodinated doubly refined and deodorizedsun-flower oil with an iodine content <strong>of</strong> 10g I/cm 3 .Investigations in vivoFor the purpose <strong>of</strong> elucidation <strong>of</strong> the influence <strong>of</strong> food regimes with different content <strong>of</strong> iodine on bioavailability<strong>of</strong> iodine from fortified lipidic products and the dynamics <strong>of</strong> evolution <strong>of</strong> experimental hypothyroidism, two series <strong>of</strong>experiments were performed.The experiment was realized with the lot <strong>of</strong> white rats <strong>of</strong> the Wistar line with masses in the range 180 – 210 g.The feed was a standard ration with free access to water. Duration <strong>of</strong> the experiment was <strong>of</strong> 42 days. The animals werekept in individual cages, 5 animals in every cage.82
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