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Fructose-rich diet induces gender-specific changes in expression of the renin-angiotensin system in rat heart and upregulates the ACE/AT1R axis in the male rat aorta

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2016
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Authors
Bundalo, Maja M.
Živković, Maja
Romić, Snježana Đ.
Tepavčević, Snežana
Korićanac, Goran
Đurić, Tamara
Stanković, Aleksandra
Article (Published version)
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Abstract
Introduction: The cardiovascular renin-angiotensin system (RAS) could be affected by gender and dietary regime. We hypothesized that male rats will be more susceptible to activation of RAS in the heart and aorta, as a response to a fructose-rich diet (FRD). Materials and methods: Both male and female Wistar rats were given a 10% (w/v) fructose solution for 9 weeks. We measured the biochemical parameters, blood pressure (BP) and heart rate. We used Western blot and real-time polymerase chain reaction (PCR) to quantify protein and gene expression. Results: In the male rats, the FRD elevated BP and expression of cardiac angiotensin-converting enzyme (ACE), while the expression of angiotensin-converting enzyme 2 (ACE2) and angiotensin II Type 2 receptor (AT(2)R) were significantly decreased. In female rats, there were no changes in cardiac RAS expression due to FRD. Furthermore, the ACE/AT(1)R axis was overexpressed in the FRD male rats aortae, while only AT(1)R was upregulated in the FRD ...female rats aortae. ACE2 expression remained unchanged in the aortae of both genders receiving the FRD. Conclusions: The FRD induced gender-specific changes in the expression of the RAS in the heart and aortae of male rats. Further investigations are required in order to get a comprehensive understanding of the underlying mechanisms of gender-specific fructose-induced cardiovascular pathologies.

Keywords:
Angiotensin-converting enzyme / angiotensin receptor / aorta / diet / fructose / gender differences / heart / protein expression / rat / renin-angiotensin system
Source:
Journal of the Renin-Angiotensin-Aldosterone System, 2016, 17, 2
Funding / projects:
  • Genetic basis of human vascular and inflammatory diseases (RS-175085)
  • Role of steroid hormones in neuroendocrine adaptation to stress and pathophysiology of metabolic syndrome - molecular mechanisms and clinical implications (RS-41009)

DOI: 10.1177/1470320316642915

ISSN: 1470-3203; 1752-8976

PubMed: 27121972

WoS: 000378273800003

Scopus: 2-s2.0-84976465970
[ Google Scholar ]
18
17
URI
https://vinar.vin.bg.ac.rs/handle/123456789/1132
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  • WoS Import
Institution/Community
Vinča
TY  - JOUR
AU  - Bundalo, Maja M.
AU  - Živković, Maja
AU  - Romić, Snježana Đ.
AU  - Tepavčević, Snežana
AU  - Korićanac, Goran
AU  - Đurić, Tamara
AU  - Stanković, Aleksandra
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1132
AB  - Introduction: The cardiovascular renin-angiotensin system (RAS) could be affected by gender and dietary regime. We hypothesized that male rats will be more susceptible to activation of RAS in the heart and aorta, as a response to a fructose-rich diet (FRD). Materials and methods: Both male and female Wistar rats were given a 10% (w/v) fructose solution for 9 weeks. We measured the biochemical parameters, blood pressure (BP) and heart rate. We used Western blot and real-time polymerase chain reaction (PCR) to quantify protein and gene expression. Results: In the male rats, the FRD elevated BP and expression of cardiac angiotensin-converting enzyme (ACE), while the expression of angiotensin-converting enzyme 2 (ACE2) and angiotensin II Type 2 receptor (AT(2)R) were significantly decreased. In female rats, there were no changes in cardiac RAS expression due to FRD. Furthermore, the ACE/AT(1)R axis was overexpressed in the FRD male rats aortae, while only AT(1)R was upregulated in the FRD female rats aortae. ACE2 expression remained unchanged in the aortae of both genders receiving the FRD. Conclusions: The FRD induced gender-specific changes in the expression of the RAS in the heart and aortae of male rats. Further investigations are required in order to get a comprehensive understanding of the underlying mechanisms of gender-specific fructose-induced cardiovascular pathologies.
T2  - Journal of the Renin-Angiotensin-Aldosterone System
T1  - Fructose-rich diet induces gender-specific changes in expression of the renin-angiotensin system in rat heart and upregulates the ACE/AT1R axis in the male rat aorta
VL  - 17
IS  - 2
DO  - 10.1177/1470320316642915
ER  - 
@article{
author = "Bundalo, Maja M. and Živković, Maja and Romić, Snježana Đ. and Tepavčević, Snežana and Korićanac, Goran and Đurić, Tamara and Stanković, Aleksandra",
year = "2016",
abstract = "Introduction: The cardiovascular renin-angiotensin system (RAS) could be affected by gender and dietary regime. We hypothesized that male rats will be more susceptible to activation of RAS in the heart and aorta, as a response to a fructose-rich diet (FRD). Materials and methods: Both male and female Wistar rats were given a 10% (w/v) fructose solution for 9 weeks. We measured the biochemical parameters, blood pressure (BP) and heart rate. We used Western blot and real-time polymerase chain reaction (PCR) to quantify protein and gene expression. Results: In the male rats, the FRD elevated BP and expression of cardiac angiotensin-converting enzyme (ACE), while the expression of angiotensin-converting enzyme 2 (ACE2) and angiotensin II Type 2 receptor (AT(2)R) were significantly decreased. In female rats, there were no changes in cardiac RAS expression due to FRD. Furthermore, the ACE/AT(1)R axis was overexpressed in the FRD male rats aortae, while only AT(1)R was upregulated in the FRD female rats aortae. ACE2 expression remained unchanged in the aortae of both genders receiving the FRD. Conclusions: The FRD induced gender-specific changes in the expression of the RAS in the heart and aortae of male rats. Further investigations are required in order to get a comprehensive understanding of the underlying mechanisms of gender-specific fructose-induced cardiovascular pathologies.",
journal = "Journal of the Renin-Angiotensin-Aldosterone System",
title = "Fructose-rich diet induces gender-specific changes in expression of the renin-angiotensin system in rat heart and upregulates the ACE/AT1R axis in the male rat aorta",
volume = "17",
number = "2",
doi = "10.1177/1470320316642915"
}
Bundalo, M. M., Živković, M., Romić, S. Đ., Tepavčević, S., Korićanac, G., Đurić, T.,& Stanković, A.. (2016). Fructose-rich diet induces gender-specific changes in expression of the renin-angiotensin system in rat heart and upregulates the ACE/AT1R axis in the male rat aorta. in Journal of the Renin-Angiotensin-Aldosterone System, 17(2).
https://doi.org/10.1177/1470320316642915
Bundalo MM, Živković M, Romić SĐ, Tepavčević S, Korićanac G, Đurić T, Stanković A. Fructose-rich diet induces gender-specific changes in expression of the renin-angiotensin system in rat heart and upregulates the ACE/AT1R axis in the male rat aorta. in Journal of the Renin-Angiotensin-Aldosterone System. 2016;17(2).
doi:10.1177/1470320316642915 .
Bundalo, Maja M., Živković, Maja, Romić, Snježana Đ., Tepavčević, Snežana, Korićanac, Goran, Đurić, Tamara, Stanković, Aleksandra, "Fructose-rich diet induces gender-specific changes in expression of the renin-angiotensin system in rat heart and upregulates the ACE/AT1R axis in the male rat aorta" in Journal of the Renin-Angiotensin-Aldosterone System, 17, no. 2 (2016),
https://doi.org/10.1177/1470320316642915 . .

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