Krga, Irena S.

Link to this page

Authority KeyName Variants
orcid::0000-0002-2073-2896
  • Krga, Irena S. (2)
Projects

Author's Bibliography

Walnut Supplementation Restores the SIRT1-FoxO3a-MnSOD/Catalase Axis in the Heart, Promotes an Anti-Inflammatory Fatty Acid Profile in Plasma, and Lowers Blood Pressure on Fructose-Rich Diet

Bošković, Maja; Živković, Maja; Korićanac, Goran; Stanišić, Jelena; Zec, Manja; Krga, Irena S.; Stanković, Aleksandra

(2021)

TY  - JOUR
AU  - Bošković, Maja
AU  - Živković, Maja
AU  - Korićanac, Goran
AU  - Stanišić, Jelena
AU  - Zec, Manja
AU  - Krga, Irena S.
AU  - Stanković, Aleksandra
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9809
AB  - The benefits of walnut (Juglans regia) consumption for metabolic health are known, but the molecular background underlying their putative antioxidant and anti-inflammatory/immunomodulatory effects is underexplored. We assessed that walnut supplementation (6 weeks) reverted unfavorable changes of the SIRT1/FoxO3a/MnSOD/catalase axis in the heart induced by fructose-rich diet (FRD). Intriguingly, Nox4 was increased by both FRD and walnut supplementation. FRD increased the cytosolic fraction and decreased the nuclear fraction of the uniquely elucidated ChREBP in the heart. The ChREBP nuclear fraction was decreased in control rats subjected to walnuts. In addition, walnut consumption was associated with a reduction in systolic BP in FRD and a decrease in fatty acid AA/EPA and AA/DHA ratios in plasma. In summary, the protective effect of walnut supplementation was detected in male rats following the fructose-induced decrease in antioxidative/anti-inflammatory capacity of cardiac tissue and increase in plasma predictors of low-grade inflammation. The current results provide a novel insight into the relationship between nutrients, cellular energy homeostasis, and the modulators of inflammatory/immune response in metabolic syndrome, emphasizing the heart and highlighting a track for translation into nutrition and dietary therapeutic approaches against metabolic disease.
T2  - Oxidative Medicine and Cellular Longevity
T1  - Walnut Supplementation Restores the SIRT1-FoxO3a-MnSOD/Catalase Axis in the Heart, Promotes an Anti-Inflammatory Fatty Acid Profile in Plasma, and Lowers Blood Pressure on Fructose-Rich Diet
VL  - 2021
SP  - e5543025
DO  - 10.1155/2021/5543025
ER  - 
@article{
author = "Bošković, Maja and Živković, Maja and Korićanac, Goran and Stanišić, Jelena and Zec, Manja and Krga, Irena S. and Stanković, Aleksandra",
year = "2021",
abstract = "The benefits of walnut (Juglans regia) consumption for metabolic health are known, but the molecular background underlying their putative antioxidant and anti-inflammatory/immunomodulatory effects is underexplored. We assessed that walnut supplementation (6 weeks) reverted unfavorable changes of the SIRT1/FoxO3a/MnSOD/catalase axis in the heart induced by fructose-rich diet (FRD). Intriguingly, Nox4 was increased by both FRD and walnut supplementation. FRD increased the cytosolic fraction and decreased the nuclear fraction of the uniquely elucidated ChREBP in the heart. The ChREBP nuclear fraction was decreased in control rats subjected to walnuts. In addition, walnut consumption was associated with a reduction in systolic BP in FRD and a decrease in fatty acid AA/EPA and AA/DHA ratios in plasma. In summary, the protective effect of walnut supplementation was detected in male rats following the fructose-induced decrease in antioxidative/anti-inflammatory capacity of cardiac tissue and increase in plasma predictors of low-grade inflammation. The current results provide a novel insight into the relationship between nutrients, cellular energy homeostasis, and the modulators of inflammatory/immune response in metabolic syndrome, emphasizing the heart and highlighting a track for translation into nutrition and dietary therapeutic approaches against metabolic disease.",
journal = "Oxidative Medicine and Cellular Longevity",
title = "Walnut Supplementation Restores the SIRT1-FoxO3a-MnSOD/Catalase Axis in the Heart, Promotes an Anti-Inflammatory Fatty Acid Profile in Plasma, and Lowers Blood Pressure on Fructose-Rich Diet",
volume = "2021",
pages = "e5543025",
doi = "10.1155/2021/5543025"
}
Bošković, M., Živković, M., Korićanac, G., Stanišić, J., Zec, M., Krga, I. S.,& Stanković, A.. (2021). Walnut Supplementation Restores the SIRT1-FoxO3a-MnSOD/Catalase Axis in the Heart, Promotes an Anti-Inflammatory Fatty Acid Profile in Plasma, and Lowers Blood Pressure on Fructose-Rich Diet. in Oxidative Medicine and Cellular Longevity, 2021, e5543025.
https://doi.org/10.1155/2021/5543025
Bošković M, Živković M, Korićanac G, Stanišić J, Zec M, Krga IS, Stanković A. Walnut Supplementation Restores the SIRT1-FoxO3a-MnSOD/Catalase Axis in the Heart, Promotes an Anti-Inflammatory Fatty Acid Profile in Plasma, and Lowers Blood Pressure on Fructose-Rich Diet. in Oxidative Medicine and Cellular Longevity. 2021;2021:e5543025.
doi:10.1155/2021/5543025 .
Bošković, Maja, Živković, Maja, Korićanac, Goran, Stanišić, Jelena, Zec, Manja, Krga, Irena S., Stanković, Aleksandra, "Walnut Supplementation Restores the SIRT1-FoxO3a-MnSOD/Catalase Axis in the Heart, Promotes an Anti-Inflammatory Fatty Acid Profile in Plasma, and Lowers Blood Pressure on Fructose-Rich Diet" in Oxidative Medicine and Cellular Longevity, 2021 (2021):e5543025,
https://doi.org/10.1155/2021/5543025 . .
8
6

Walnut Consumption Induces Tissue-Specific Omega-6/Omega-3 Decrease in High-Fructose-Fed Wistar Rats

Zec, Manja M.; Krga, Irena S.; Takić, Marija M.; Debeljak-Martačić, Jasmina D.; Korićanac, Goran; Ranković, Slavica G.; Popović, Tamara B.; Pantelić, Marija; Glibetić, Maria D.

(Amer Chemical Soc, Washington, 2020)

TY  - JOUR
AU  - Zec, Manja M.
AU  - Krga, Irena S.
AU  - Takić, Marija M.
AU  - Debeljak-Martačić, Jasmina D.
AU  - Korićanac, Goran
AU  - Ranković, Slavica G.
AU  - Popović, Tamara B.
AU  - Pantelić, Marija
AU  - Glibetić, Maria D.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9731
AB  - Increased dietary, blood, and tissue n-6/n-3 fatty acid ratios are associated with obesity and metabolic syndrome. Due to Westernized dietary patterns, the increasing n-6/n-3 ratio is of growing concern worldwide, and dietary strategies aimed at its lowering are of public health importance. Walnuts are rich in dietary fats, and their consumption promotes cardiometabolic health. This study aimed to examine the effect of 6-week walnut consumption on tissue-specific n-6/n-3 ratio and fatty acid metabolic conversion in fructose-fed rats with a cluster of metabolic disorders. Male Wistar rats were fed a standard diet with or without 10% fructose in drinking water for 9 weeks. Diets of half of the animals were then supplemented with walnuts (2.4 g/day) for 6 weeks, upon which fatty acid profiles were determined in plasma, liver, adipose tissue, and kidney total lipids. Results showed that walnuts induced significant decreases in the n-6/n-3 content of total lipid pool in plasma and examined tissues, irrespective of metabolic burden. Walnut intervention decreased plasma and liver palmitoleic/palmitic, arachidonic/linoleic, and docosahexaenoic/alpha-linolenic acid ratios. It also modulated individual fatty acid levels by reducing arachidonic and palmitic acid and increasing alpha-linolenic, eicosapentaenoic, and docosapentaenoic acid in plasma and most tissues. Our study demonstrated that 6-week consumption of walnuts favorably modulated n-6/n-3 plasma and tissue ratio in male Wistar rats regardless of high-fructose feeding, underscoring the promising potential of walnuts in both prevention and treatment of the metabolic syndrome.
PB  - Amer Chemical Soc, Washington
T2  - ACS Omega
T1  - Walnut Consumption Induces Tissue-Specific Omega-6/Omega-3 Decrease in High-Fructose-Fed Wistar Rats
VL  - 5
IS  - 43
SP  - 28136
EP  - 28145
DO  - 10.1021/acsomega.0c03784
ER  - 
@article{
author = "Zec, Manja M. and Krga, Irena S. and Takić, Marija M. and Debeljak-Martačić, Jasmina D. and Korićanac, Goran and Ranković, Slavica G. and Popović, Tamara B. and Pantelić, Marija and Glibetić, Maria D.",
year = "2020",
abstract = "Increased dietary, blood, and tissue n-6/n-3 fatty acid ratios are associated with obesity and metabolic syndrome. Due to Westernized dietary patterns, the increasing n-6/n-3 ratio is of growing concern worldwide, and dietary strategies aimed at its lowering are of public health importance. Walnuts are rich in dietary fats, and their consumption promotes cardiometabolic health. This study aimed to examine the effect of 6-week walnut consumption on tissue-specific n-6/n-3 ratio and fatty acid metabolic conversion in fructose-fed rats with a cluster of metabolic disorders. Male Wistar rats were fed a standard diet with or without 10% fructose in drinking water for 9 weeks. Diets of half of the animals were then supplemented with walnuts (2.4 g/day) for 6 weeks, upon which fatty acid profiles were determined in plasma, liver, adipose tissue, and kidney total lipids. Results showed that walnuts induced significant decreases in the n-6/n-3 content of total lipid pool in plasma and examined tissues, irrespective of metabolic burden. Walnut intervention decreased plasma and liver palmitoleic/palmitic, arachidonic/linoleic, and docosahexaenoic/alpha-linolenic acid ratios. It also modulated individual fatty acid levels by reducing arachidonic and palmitic acid and increasing alpha-linolenic, eicosapentaenoic, and docosapentaenoic acid in plasma and most tissues. Our study demonstrated that 6-week consumption of walnuts favorably modulated n-6/n-3 plasma and tissue ratio in male Wistar rats regardless of high-fructose feeding, underscoring the promising potential of walnuts in both prevention and treatment of the metabolic syndrome.",
publisher = "Amer Chemical Soc, Washington",
journal = "ACS Omega",
title = "Walnut Consumption Induces Tissue-Specific Omega-6/Omega-3 Decrease in High-Fructose-Fed Wistar Rats",
volume = "5",
number = "43",
pages = "28136-28145",
doi = "10.1021/acsomega.0c03784"
}
Zec, M. M., Krga, I. S., Takić, M. M., Debeljak-Martačić, J. D., Korićanac, G., Ranković, S. G., Popović, T. B., Pantelić, M.,& Glibetić, M. D.. (2020). Walnut Consumption Induces Tissue-Specific Omega-6/Omega-3 Decrease in High-Fructose-Fed Wistar Rats. in ACS Omega
Amer Chemical Soc, Washington., 5(43), 28136-28145.
https://doi.org/10.1021/acsomega.0c03784
Zec MM, Krga IS, Takić MM, Debeljak-Martačić JD, Korićanac G, Ranković SG, Popović TB, Pantelić M, Glibetić MD. Walnut Consumption Induces Tissue-Specific Omega-6/Omega-3 Decrease in High-Fructose-Fed Wistar Rats. in ACS Omega. 2020;5(43):28136-28145.
doi:10.1021/acsomega.0c03784 .
Zec, Manja M., Krga, Irena S., Takić, Marija M., Debeljak-Martačić, Jasmina D., Korićanac, Goran, Ranković, Slavica G., Popović, Tamara B., Pantelić, Marija, Glibetić, Maria D., "Walnut Consumption Induces Tissue-Specific Omega-6/Omega-3 Decrease in High-Fructose-Fed Wistar Rats" in ACS Omega, 5, no. 43 (2020):28136-28145,
https://doi.org/10.1021/acsomega.0c03784 . .
14
10
4
9