TY  - JOUR
AU  - Dubljević, Olga
AU  - Ković, Vanja
AU  - Pavković, Željko
AU  - Mitić, Miloš
AU  - Pešić, Vesna
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10482
AB  - A potential relationship between unrestricted sucrose intake (USI), overweight, and emotional/behavioral control has not been well documented. We examined the influence of USI and having less sweetness than expected on body weight (BW), motor/exploratory, anxiety-like, and social dominant behavior in adult C57BL/6J male mice. Animals had free access to water (group 1) or 32% sucrose and water (sucrose groups 2–5) for 10 days. Then, group 2 remained with 32% sucrose while groups 3–5 were subjected to the downshift (24 h access to 4%, 8%, or 16% sucrose). All experimental groups were weighed and tested in the novel-open arena (NA), elevated plus maze (EPM), and tube tests to assess BW, motor/exploratory, anxiety-like, and social dominance behavior, respectively. USI did not influence animals’ BW but produced hyperactivity and anxiolytic-like behavior, which was evident in EPM but not in NA; the outcomes of the downshift were comparable. USI did not influence successes/wins in the tube test but altered emotions that drive the winning, favoring a less anxious behavioral phenotype; this was not evident in the downshifted groups. Observed findings suggest that USI promotes sensation-seeking and motivates dominance, without changing BW, while blunted emotional base of social dominance might be an early mark of the downshift.
T2  - Brain Sciences
T1  - The Influence of Unlimited Sucrose Intake on Body Weight and Behavior—Findings from a Mouse Model
VL  - 12
IS  - 10
SP  - 1332
DO  - 10.3390/brainsci12101332
ER  - 

@article{
author = "Dubljević, Olga and Ković, Vanja and Pavković, Željko and Mitić, Miloš and Pešić, Vesna",
year = "2022",
abstract = "A potential relationship between unrestricted sucrose intake (USI), overweight, and emotional/behavioral control has not been well documented. We examined the influence of USI and having less sweetness than expected on body weight (BW), motor/exploratory, anxiety-like, and social dominant behavior in adult C57BL/6J male mice. Animals had free access to water (group 1) or 32% sucrose and water (sucrose groups 2–5) for 10 days. Then, group 2 remained with 32% sucrose while groups 3–5 were subjected to the downshift (24 h access to 4%, 8%, or 16% sucrose). All experimental groups were weighed and tested in the novel-open arena (NA), elevated plus maze (EPM), and tube tests to assess BW, motor/exploratory, anxiety-like, and social dominance behavior, respectively. USI did not influence animals’ BW but produced hyperactivity and anxiolytic-like behavior, which was evident in EPM but not in NA; the outcomes of the downshift were comparable. USI did not influence successes/wins in the tube test but altered emotions that drive the winning, favoring a less anxious behavioral phenotype; this was not evident in the downshifted groups. Observed findings suggest that USI promotes sensation-seeking and motivates dominance, without changing BW, while blunted emotional base of social dominance might be an early mark of the downshift.",
journal = "Brain Sciences",
title = "The Influence of Unlimited Sucrose Intake on Body Weight and Behavior—Findings from a Mouse Model",
volume = "12",
number = "10",
pages = "1332",
doi = "10.3390/brainsci12101332"
}

Dubljević, O., Ković, V., Pavković, Ž., Mitić, M.,& Pešić, V.. (2022). The Influence of Unlimited Sucrose Intake on Body Weight and Behavior—Findings from a Mouse Model. in Brain Sciences, 12(10), 1332.
https://doi.org/10.3390/brainsci12101332

Dubljević O, Ković V, Pavković Ž, Mitić M, Pešić V. The Influence of Unlimited Sucrose Intake on Body Weight and Behavior—Findings from a Mouse Model. in Brain Sciences. 2022;12(10):1332.
doi:10.3390/brainsci12101332 .

Dubljević, Olga, Ković, Vanja, Pavković, Željko, Mitić, Miloš, Pešić, Vesna, "The Influence of Unlimited Sucrose Intake on Body Weight and Behavior—Findings from a Mouse Model" in Brain Sciences, 12, no. 10 (2022):1332,
https://doi.org/10.3390/brainsci12101332 . .

TY  - JOUR
AU  - Stanić, Dušanka
AU  - Plećaš-Solarović, Bosiljka
AU  - Mirković, Duško
AU  - Jovanović, Predrag
AU  - Dronjak, Slađana
AU  - Marković, Bojan D.
AU  - Đorđević, Tea
AU  - Ignjatović, Svetlana
AU  - Pešić, Vesna
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1595
AB  - Chronic stress conditions can lead to considerable and extensible changes in physiological and psychological performances, and in emergence of risk for various somatic diseases. On the other hand, the neuropeptide oxytocin is reported to increase the resistance of the organism to stress and modulate activity of autonomic nervous system. Chronic corticosterone administration is used as a rat model for a state observed in terms of chronic stress exposure, when negative feedback mechanism of hypothalamus-pituitary-adrenal axis activity is disrupted. In our study, we aimed to investigate whether chronic administration of oxytocin (10114400 pI/day for 14 days, s.c.) influenced adrenal gland morphology and activity in adult male Wistar rats during long-term corticosterone administration via drinking water (100 mg/L for 21 days). We examined the influence of treatments on the levels of adrenal gland hormones, corticosterone, adrenaline and noradrenaline, as well as their response to an acute stress challenge evoked by 15-min forced swimming. In addition, the expression of two main monoamine transporters, the noradrenaline transporter (NAT) and vesicular monoamine transporter 2 (VMAT2) in adrenal medulla was measured in the rats exposed to acute stress. Our results showed that oxytocin treatment prevented corticosterone-induced decrease in body weight gain, attenuated adrenal gland atrophy by increasing glandular weight, and the area of the zona fasciculate and reticularis. Chronic corticosterone intake blunted the response of all measured hormones to acute stress, whereas concomitant oxytocin treatment reversed adrenaline and noradrenaline response to acute stress. Furthermore, in adrenal medulla, oxytocin produced significant vasodilatation and stimulated expression of both catecholamine transporters detected both on mRNA and protein level. Our data suggest that oxytocin, by reducing atrophy of adrenal gland, and by increasing catecholamine storage capacity, may be beneficial in conditions accompanied with high glucocorticoid levels, such as chronic stress exposure. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Psychoneuroendocrinology
T1  - Oxytocin in corticosterone-induced chronic stress model: Focus on adrenal gland function
VL  - 80
SP  - 137
EP  - 146
DO  - 10.1016/j.psyneuen.2017.03.011
ER  - 

@article{
author = "Stanić, Dušanka and Plećaš-Solarović, Bosiljka and Mirković, Duško and Jovanović, Predrag and Dronjak, Slađana and Marković, Bojan D. and Đorđević, Tea and Ignjatović, Svetlana and Pešić, Vesna",
year = "2017",
abstract = "Chronic stress conditions can lead to considerable and extensible changes in physiological and psychological performances, and in emergence of risk for various somatic diseases. On the other hand, the neuropeptide oxytocin is reported to increase the resistance of the organism to stress and modulate activity of autonomic nervous system. Chronic corticosterone administration is used as a rat model for a state observed in terms of chronic stress exposure, when negative feedback mechanism of hypothalamus-pituitary-adrenal axis activity is disrupted. In our study, we aimed to investigate whether chronic administration of oxytocin (10114400 pI/day for 14 days, s.c.) influenced adrenal gland morphology and activity in adult male Wistar rats during long-term corticosterone administration via drinking water (100 mg/L for 21 days). We examined the influence of treatments on the levels of adrenal gland hormones, corticosterone, adrenaline and noradrenaline, as well as their response to an acute stress challenge evoked by 15-min forced swimming. In addition, the expression of two main monoamine transporters, the noradrenaline transporter (NAT) and vesicular monoamine transporter 2 (VMAT2) in adrenal medulla was measured in the rats exposed to acute stress. Our results showed that oxytocin treatment prevented corticosterone-induced decrease in body weight gain, attenuated adrenal gland atrophy by increasing glandular weight, and the area of the zona fasciculate and reticularis. Chronic corticosterone intake blunted the response of all measured hormones to acute stress, whereas concomitant oxytocin treatment reversed adrenaline and noradrenaline response to acute stress. Furthermore, in adrenal medulla, oxytocin produced significant vasodilatation and stimulated expression of both catecholamine transporters detected both on mRNA and protein level. Our data suggest that oxytocin, by reducing atrophy of adrenal gland, and by increasing catecholamine storage capacity, may be beneficial in conditions accompanied with high glucocorticoid levels, such as chronic stress exposure. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Psychoneuroendocrinology",
title = "Oxytocin in corticosterone-induced chronic stress model: Focus on adrenal gland function",
volume = "80",
pages = "137-146",
doi = "10.1016/j.psyneuen.2017.03.011"
}

Stanić, D., Plećaš-Solarović, B., Mirković, D., Jovanović, P., Dronjak, S., Marković, B. D., Đorđević, T., Ignjatović, S.,& Pešić, V.. (2017). Oxytocin in corticosterone-induced chronic stress model: Focus on adrenal gland function. in Psychoneuroendocrinology, 80, 137-146.
https://doi.org/10.1016/j.psyneuen.2017.03.011

Stanić D, Plećaš-Solarović B, Mirković D, Jovanović P, Dronjak S, Marković BD, Đorđević T, Ignjatović S, Pešić V. Oxytocin in corticosterone-induced chronic stress model: Focus on adrenal gland function. in Psychoneuroendocrinology. 2017;80:137-146.
doi:10.1016/j.psyneuen.2017.03.011 .

Stanić, Dušanka, Plećaš-Solarović, Bosiljka, Mirković, Duško, Jovanović, Predrag, Dronjak, Slađana, Marković, Bojan D., Đorđević, Tea, Ignjatović, Svetlana, Pešić, Vesna, "Oxytocin in corticosterone-induced chronic stress model: Focus on adrenal gland function" in Psychoneuroendocrinology, 80 (2017):137-146,
https://doi.org/10.1016/j.psyneuen.2017.03.011 . .