TY  - JOUR
AU  - Miler, Marko
AU  - Jarić, Ivana
AU  - Živanović, Jasmina
AU  - Ajdžanovic, Vladimir
AU  - Tanić, Nasta
AU  - Milošević, Verica
AU  - Šošić-Jurjević, Branka
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1567
AB  - Citrus flavanones naringenin (NAR) and hesperetin (HES) are potent antioxidants that may contribute to maintenance of health at old age by improving cardiovascular and metabolic status. However, they may also affect thyroid hormone economy. Keeping in mind impaired thyroid function at older age, in this study we tested wheather NAR or HES administration potentiate this decline. NAR or HES were administrated orally (15 mg/kg) to male 24-month-old Wistar rats during 4 Weeks. Control groups received vehicle, sunflower oil. Qualitative and quantitative immunohistochemical and immunofluorescent expression of specific proteins and stereological analyses of thyroid tissue were performed. Thyroid stimulating hormone (TSH) and total thyroxine (T-4) concentrations were measured in serum. Thyroid parenchyma of both flavanone-treated groups was characterized by lower (p LT 0.05) absolute and relative volume of luminal colloid, accompanied by elevated (p LT 0.05) relative volume of stroma in comparison with the controls. No hypertrophy or absolute thyroid volume change was detected. Intensity of immunopositive signal for thyroglobulin (Tg) and T-4 bound to Tg (T-4-Tg) increased (p LT 0.05) in the colloid of thyroid follicles after both flavanone treatments. Serum TSH increased (p LT 0.05) after NAR, while T-4 remained unchanged after both treatments. In conclusion, NAR elevated serum TSH in old-aged males, thus being more potent than HES in altering pituitary-thyroid axis. However, changes in thyroid structure, namely moderate colloid depletion and higher Tg and T-4-Tg protein expressions after both treatments, indicate preserved capacity of the gland to compensate flavanone interfering, and maintain T-4 production in old-aged males. (C) 2017 Elsevier GmbH. All rights reserved.
T2  - Acta Histochemica
T1  - Citrus flavanones mildly interfere with pituitary -thyroid axis in old-aged male rats
VL  - 119
IS  - 3
SP  - 292
EP  - 301
DO  - 10.1016/j.acthis.2017.02.005
ER  - 

@article{
author = "Miler, Marko and Jarić, Ivana and Živanović, Jasmina and Ajdžanovic, Vladimir and Tanić, Nasta and Milošević, Verica and Šošić-Jurjević, Branka",
year = "2017",
abstract = "Citrus flavanones naringenin (NAR) and hesperetin (HES) are potent antioxidants that may contribute to maintenance of health at old age by improving cardiovascular and metabolic status. However, they may also affect thyroid hormone economy. Keeping in mind impaired thyroid function at older age, in this study we tested wheather NAR or HES administration potentiate this decline. NAR or HES were administrated orally (15 mg/kg) to male 24-month-old Wistar rats during 4 Weeks. Control groups received vehicle, sunflower oil. Qualitative and quantitative immunohistochemical and immunofluorescent expression of specific proteins and stereological analyses of thyroid tissue were performed. Thyroid stimulating hormone (TSH) and total thyroxine (T-4) concentrations were measured in serum. Thyroid parenchyma of both flavanone-treated groups was characterized by lower (p LT 0.05) absolute and relative volume of luminal colloid, accompanied by elevated (p LT 0.05) relative volume of stroma in comparison with the controls. No hypertrophy or absolute thyroid volume change was detected. Intensity of immunopositive signal for thyroglobulin (Tg) and T-4 bound to Tg (T-4-Tg) increased (p LT 0.05) in the colloid of thyroid follicles after both flavanone treatments. Serum TSH increased (p LT 0.05) after NAR, while T-4 remained unchanged after both treatments. In conclusion, NAR elevated serum TSH in old-aged males, thus being more potent than HES in altering pituitary-thyroid axis. However, changes in thyroid structure, namely moderate colloid depletion and higher Tg and T-4-Tg protein expressions after both treatments, indicate preserved capacity of the gland to compensate flavanone interfering, and maintain T-4 production in old-aged males. (C) 2017 Elsevier GmbH. All rights reserved.",
journal = "Acta Histochemica",
title = "Citrus flavanones mildly interfere with pituitary -thyroid axis in old-aged male rats",
volume = "119",
number = "3",
pages = "292-301",
doi = "10.1016/j.acthis.2017.02.005"
}

Miler, M., Jarić, I., Živanović, J., Ajdžanovic, V., Tanić, N., Milošević, V.,& Šošić-Jurjević, B.. (2017). Citrus flavanones mildly interfere with pituitary -thyroid axis in old-aged male rats. in Acta Histochemica, 119(3), 292-301.
https://doi.org/10.1016/j.acthis.2017.02.005

Miler M, Jarić I, Živanović J, Ajdžanovic V, Tanić N, Milošević V, Šošić-Jurjević B. Citrus flavanones mildly interfere with pituitary -thyroid axis in old-aged male rats. in Acta Histochemica. 2017;119(3):292-301.
doi:10.1016/j.acthis.2017.02.005 .

Miler, Marko, Jarić, Ivana, Živanović, Jasmina, Ajdžanovic, Vladimir, Tanić, Nasta, Milošević, Verica, Šošić-Jurjević, Branka, "Citrus flavanones mildly interfere with pituitary -thyroid axis in old-aged male rats" in Acta Histochemica, 119, no. 3 (2017):292-301,
https://doi.org/10.1016/j.acthis.2017.02.005 . .