Grahovac, Tanja

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orcid::0000-0002-5906-3298
  • Grahovac, Tanja (4)
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Author's Bibliography

Reduced and oxidized glutathione affects smooth muscle contractility and anti-oxidant enzymes activity in isolated ileum of male rat

Grahovac, Tanja; Vidonja Uzelac, Teodora; Nikolić-Kokić, Aleksandra; Tatalović, Nikola; Oreščanin-Dušić, Zorana; Blagojević, Duško

(Sarajevo: Institute for Genetic Engineering and Biotechnology, University of Sarajevo, 2023)

TY  - CONF
AU  - Grahovac, Tanja
AU  - Vidonja Uzelac, Teodora
AU  - Nikolić-Kokić, Aleksandra
AU  - Tatalović, Nikola
AU  - Oreščanin-Dušić, Zorana
AU  - Blagojević, Duško
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5849
AB  - Normal redox status of the cell is maintained by a number of enzymes, such as superoxide dismutase, catalase, glutathione peroxidase and low molecular weight antioxidants. One of the component that determining the redox status of cells is the tripeptide glutathione. Maintaining high levels of reduced glutathione enhances antioxidant defense. The aim of this study was to examine whether, to what extent and in what way changes in physiological processes occurred in conditions when cellular redox homeostasis is in imbalance. The experiments were performed on isolated ileum of male Wistar rats, electrically stimulated and treated with cumulative doses of reduced or oxidized glutathione. The activity of antioxidant enzymes (catalase, glutathione reductase, glutathione peroxidase, copper–zinc superoxide dismutase and manganese superoxide dismutase) was determined in treated ileum.  Glutathione in both forms decreased amplitude of ileum contractions. Cumulative doses of oxidized glutathione led to higher glutathione reductase activity while the addition of reduced glutathione increased activity of glutathione peroxidase. The results showed that maintenance of cellular redox homeostasis have influence to physiological processes.
PB  - Sarajevo: Institute for Genetic Engineering and Biotechnology, University of Sarajevo
C3  - Book of abstracts: International Conference of Biochemists and Molecular Biologists in Bosnia and Herzegovina -ABMBBIH; 2023 May 18-20; Sarajevo, Bosnia and Herzegovina
T1  - Reduced and oxidized glutathione affects smooth muscle contractility and anti-oxidant enzymes activity in isolated ileum of male rat
SP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5849
ER  - 
@conference{
author = "Grahovac, Tanja and Vidonja Uzelac, Teodora and Nikolić-Kokić, Aleksandra and Tatalović, Nikola and Oreščanin-Dušić, Zorana and Blagojević, Duško",
year = "2023",
abstract = "Normal redox status of the cell is maintained by a number of enzymes, such as superoxide dismutase, catalase, glutathione peroxidase and low molecular weight antioxidants. One of the component that determining the redox status of cells is the tripeptide glutathione. Maintaining high levels of reduced glutathione enhances antioxidant defense. The aim of this study was to examine whether, to what extent and in what way changes in physiological processes occurred in conditions when cellular redox homeostasis is in imbalance. The experiments were performed on isolated ileum of male Wistar rats, electrically stimulated and treated with cumulative doses of reduced or oxidized glutathione. The activity of antioxidant enzymes (catalase, glutathione reductase, glutathione peroxidase, copper–zinc superoxide dismutase and manganese superoxide dismutase) was determined in treated ileum.  Glutathione in both forms decreased amplitude of ileum contractions. Cumulative doses of oxidized glutathione led to higher glutathione reductase activity while the addition of reduced glutathione increased activity of glutathione peroxidase. The results showed that maintenance of cellular redox homeostasis have influence to physiological processes.",
publisher = "Sarajevo: Institute for Genetic Engineering and Biotechnology, University of Sarajevo",
journal = "Book of abstracts: International Conference of Biochemists and Molecular Biologists in Bosnia and Herzegovina -ABMBBIH; 2023 May 18-20; Sarajevo, Bosnia and Herzegovina",
title = "Reduced and oxidized glutathione affects smooth muscle contractility and anti-oxidant enzymes activity in isolated ileum of male rat",
pages = "42",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5849"
}
Grahovac, T., Vidonja Uzelac, T., Nikolić-Kokić, A., Tatalović, N., Oreščanin-Dušić, Z.,& Blagojević, D.. (2023). Reduced and oxidized glutathione affects smooth muscle contractility and anti-oxidant enzymes activity in isolated ileum of male rat. in Book of abstracts: International Conference of Biochemists and Molecular Biologists in Bosnia and Herzegovina -ABMBBIH; 2023 May 18-20; Sarajevo, Bosnia and Herzegovina
Sarajevo: Institute for Genetic Engineering and Biotechnology, University of Sarajevo., 42.
https://hdl.handle.net/21.15107/rcub_ibiss_5849
Grahovac T, Vidonja Uzelac T, Nikolić-Kokić A, Tatalović N, Oreščanin-Dušić Z, Blagojević D. Reduced and oxidized glutathione affects smooth muscle contractility and anti-oxidant enzymes activity in isolated ileum of male rat. in Book of abstracts: International Conference of Biochemists and Molecular Biologists in Bosnia and Herzegovina -ABMBBIH; 2023 May 18-20; Sarajevo, Bosnia and Herzegovina. 2023;:42.
https://hdl.handle.net/21.15107/rcub_ibiss_5849 .
Grahovac, Tanja, Vidonja Uzelac, Teodora, Nikolić-Kokić, Aleksandra, Tatalović, Nikola, Oreščanin-Dušić, Zorana, Blagojević, Duško, "Reduced and oxidized glutathione affects smooth muscle contractility and anti-oxidant enzymes activity in isolated ileum of male rat" in Book of abstracts: International Conference of Biochemists and Molecular Biologists in Bosnia and Herzegovina -ABMBBIH; 2023 May 18-20; Sarajevo, Bosnia and Herzegovina (2023):42,
https://hdl.handle.net/21.15107/rcub_ibiss_5849 .

Активност антиоксидативних ензима у утерусу је зависна од еструсног циклуса

Grahovac, Tanja; Tatalović, Nikola; Vidonja Uzelac, Teodora; Slavić, Marija; Nikolić-Kokić, Aleksandra; Blagojević, Duško; Oreščanin-Dušić, Zorana

(Belgrade: Serbian Biological Society, 2022)

TY  - CONF
AU  - Grahovac, Tanja
AU  - Tatalović, Nikola
AU  - Vidonja Uzelac, Teodora
AU  - Slavić, Marija
AU  - Nikolić-Kokić, Aleksandra
AU  - Blagojević, Duško
AU  - Oreščanin-Dušić, Zorana
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5848
AB  - Женке пацова имају хормонски контролисан еструсни циклус који изазива регуларне цикличне ткивне и ћелијске промене. Стога, експерименти који се изводе на женкама треба да укључују проверу фазе циклуса и рад на јединкама које су у истој фази. Уобичајено је да се узимају женке у еструсу, али како еструсна фаза траје 15-24 h, женке третиране у еструсу после 6 h ће бити и даље у еструсу у већини случајева, али већ после 24 h су у метаеструсу. Наши претходни резултати показују да ефекти на женкама пацова зависе од фазе циклуса када је апликација фармаколошки активним агенсом урађена. Како је изоловани утерус један од фармаколошких ex vivo модела избора испитивања деловања фармаколошки активних супстанци, укључујући и редокс активне, промене у утерусу директно подложне цикличности могу утицати на ефективност учинка, те и давати варијабилне резултате активности. Стога смо у овом раду мерили активност антиоксидативних ензима (SOD, CAT, GSH-Px и GR) у утерусу у различитим фазама еструсног циклуса. Утеруси у еструсу имају нижу SOD2 и вишу GSH-Px активност у поређењу са другим фазама. Активност GR у еструсу и проеструсу су биле више у поређењу са метаеструсом и диеструсом. Ове промене су у вези и са хормоналним и са редокс статусом утеруса током циклуса. Наши резултати показују да физиолошки, а посебно редокс одговор на екстерне стимулусе може бити другачији у зависности од фазе еструсног циклуса.
AB  - Ženke pacova imaju hormonski kontrolisan estrusni ciklus koji izaziva regularne ciklične tkivne i ćelijske promene. Stoga, eksperimenti koji se izvode na ženkama treba da uključuje proveru faze ciklusa i rad na jedinkama koje su u istoj fazi. Uobičajeno je da se uzimaju ženke u estrusu, ali kako estrusna faza traje 15-24 h, ženke tretirane u estrusu posle 6 h će biti i dalje u estrusu u većini slučajeva, ali već posle 24 h su u metaestrusu. Naši prethodni rezultati pokazuju da efekti na ženkama pacova zavise od faze ciklusa kada je aplikacija farmakološki aktivnim agensom urađena. Kako je izolovani uterus jedan od farmakoloških ex vivo modela izbora ispitivanja delovanja farmakološki aktivnih supstanci, uključujući i redoks aktivne, promene u uterusu direktno podložne cikličnosti mogu uticati na efektivnost učinka, te i davati varijabilne rezultate aktivnosti. Stoga smo u ovom radu merili aktivnost antioksidativnih enzima (SOD, CAT, GSH-Px и GR) u uterusu u različitim fazama estrusnog ciklusa. Uterusi u estrusu imaju nižu SOD2 i višu GSH-Px aktivnost u poređenju sa drugim fazama. Aktivnost GR u estrusu i proestrusu su bile više u poređenju sa metaestrusom i diestrusom. Ove promene su u vezi i sa hormonalnim i sa redoks statusom uterusa tokom ciklusa. Naši rezultati pokazuju da fiziološki, a posebno redoks odgovor na eksterne stimuluse može biti drugačiji u zavisnosti od faze estrusnog ciklusa.
PB  - Belgrade: Serbian Biological Society
C3  - Knjiga sažetaka: Treći Kongres biologa Srbije: Osnovna i primenjena istraživanja: Metodika nastave; 2022 Sep 21-25; Zlatibor, Serbia
T1  - Активност антиоксидативних ензима у утерусу је зависна од еструсног циклуса
T1  - Aktivnost antioksidativnih enzima u uterusu je zavisna od estrusnog ciklusa
SP  - 390
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5848
ER  - 
@conference{
author = "Grahovac, Tanja and Tatalović, Nikola and Vidonja Uzelac, Teodora and Slavić, Marija and Nikolić-Kokić, Aleksandra and Blagojević, Duško and Oreščanin-Dušić, Zorana",
year = "2022",
abstract = "Женке пацова имају хормонски контролисан еструсни циклус који изазива регуларне цикличне ткивне и ћелијске промене. Стога, експерименти који се изводе на женкама треба да укључују проверу фазе циклуса и рад на јединкама које су у истој фази. Уобичајено је да се узимају женке у еструсу, али како еструсна фаза траје 15-24 h, женке третиране у еструсу после 6 h ће бити и даље у еструсу у већини случајева, али већ после 24 h су у метаеструсу. Наши претходни резултати показују да ефекти на женкама пацова зависе од фазе циклуса када је апликација фармаколошки активним агенсом урађена. Како је изоловани утерус један од фармаколошких ex vivo модела избора испитивања деловања фармаколошки активних супстанци, укључујући и редокс активне, промене у утерусу директно подложне цикличности могу утицати на ефективност учинка, те и давати варијабилне резултате активности. Стога смо у овом раду мерили активност антиоксидативних ензима (SOD, CAT, GSH-Px и GR) у утерусу у различитим фазама еструсног циклуса. Утеруси у еструсу имају нижу SOD2 и вишу GSH-Px активност у поређењу са другим фазама. Активност GR у еструсу и проеструсу су биле више у поређењу са метаеструсом и диеструсом. Ове промене су у вези и са хормоналним и са редокс статусом утеруса током циклуса. Наши резултати показују да физиолошки, а посебно редокс одговор на екстерне стимулусе може бити другачији у зависности од фазе еструсног циклуса., Ženke pacova imaju hormonski kontrolisan estrusni ciklus koji izaziva regularne ciklične tkivne i ćelijske promene. Stoga, eksperimenti koji se izvode na ženkama treba da uključuje proveru faze ciklusa i rad na jedinkama koje su u istoj fazi. Uobičajeno je da se uzimaju ženke u estrusu, ali kako estrusna faza traje 15-24 h, ženke tretirane u estrusu posle 6 h će biti i dalje u estrusu u većini slučajeva, ali već posle 24 h su u metaestrusu. Naši prethodni rezultati pokazuju da efekti na ženkama pacova zavise od faze ciklusa kada je aplikacija farmakološki aktivnim agensom urađena. Kako je izolovani uterus jedan od farmakoloških ex vivo modela izbora ispitivanja delovanja farmakološki aktivnih supstanci, uključujući i redoks aktivne, promene u uterusu direktno podložne cikličnosti mogu uticati na efektivnost učinka, te i davati varijabilne rezultate aktivnosti. Stoga smo u ovom radu merili aktivnost antioksidativnih enzima (SOD, CAT, GSH-Px и GR) u uterusu u različitim fazama estrusnog ciklusa. Uterusi u estrusu imaju nižu SOD2 i višu GSH-Px aktivnost u poređenju sa drugim fazama. Aktivnost GR u estrusu i proestrusu su bile više u poređenju sa metaestrusom i diestrusom. Ove promene su u vezi i sa hormonalnim i sa redoks statusom uterusa tokom ciklusa. Naši rezultati pokazuju da fiziološki, a posebno redoks odgovor na eksterne stimuluse može biti drugačiji u zavisnosti od faze estrusnog ciklusa.",
publisher = "Belgrade: Serbian Biological Society",
journal = "Knjiga sažetaka: Treći Kongres biologa Srbije: Osnovna i primenjena istraživanja: Metodika nastave; 2022 Sep 21-25; Zlatibor, Serbia",
title = "Активност антиоксидативних ензима у утерусу је зависна од еструсног циклуса, Aktivnost antioksidativnih enzima u uterusu je zavisna od estrusnog ciklusa",
pages = "390",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5848"
}
Grahovac, T., Tatalović, N., Vidonja Uzelac, T., Slavić, M., Nikolić-Kokić, A., Blagojević, D.,& Oreščanin-Dušić, Z.. (2022). Активност антиоксидативних ензима у утерусу је зависна од еструсног циклуса. in Knjiga sažetaka: Treći Kongres biologa Srbije: Osnovna i primenjena istraživanja: Metodika nastave; 2022 Sep 21-25; Zlatibor, Serbia
Belgrade: Serbian Biological Society., 390.
https://hdl.handle.net/21.15107/rcub_ibiss_5848
Grahovac T, Tatalović N, Vidonja Uzelac T, Slavić M, Nikolić-Kokić A, Blagojević D, Oreščanin-Dušić Z. Активност антиоксидативних ензима у утерусу је зависна од еструсног циклуса. in Knjiga sažetaka: Treći Kongres biologa Srbije: Osnovna i primenjena istraživanja: Metodika nastave; 2022 Sep 21-25; Zlatibor, Serbia. 2022;:390.
https://hdl.handle.net/21.15107/rcub_ibiss_5848 .
Grahovac, Tanja, Tatalović, Nikola, Vidonja Uzelac, Teodora, Slavić, Marija, Nikolić-Kokić, Aleksandra, Blagojević, Duško, Oreščanin-Dušić, Zorana, "Активност антиоксидативних ензима у утерусу је зависна од еструсног циклуса" in Knjiga sažetaka: Treći Kongres biologa Srbije: Osnovna i primenjena istraživanja: Metodika nastave; 2022 Sep 21-25; Zlatibor, Serbia (2022):390,
https://hdl.handle.net/21.15107/rcub_ibiss_5848 .

Chronic treatment with sertindole, but not clozapine and ziprasidone, affects redox homeostasis in brain of male rats

Tatalović, Nikola; Nikolić-Kokić, Aleksandra; Oreščanin Dušić, Zorana; Vidonja Uzelac, Teodora; Grahovac, Tanja; Blagojević, Duško; Miljević, Čedo

(Hoboken : John Wiley & Sons Ltd, 2022)

TY  - CONF
AU  - Tatalović, Nikola
AU  - Nikolić-Kokić, Aleksandra
AU  - Oreščanin Dušić, Zorana
AU  - Vidonja Uzelac, Teodora
AU  - Grahovac, Tanja
AU  - Blagojević, Duško
AU  - Miljević, Čedo
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5186
AB  - Atypical antipsychotic drugs (APDs) are being used to treat
acute psychotic episodes in schizophrenia and schizophrenia-related
diseases as well as a variety of nonpsychotic disorders.
Despite their effectiveness, we showed that APDs clozapine
(CLO), ziprasidone (ZIP) and sertindole (SER) increased oxidative
stress and reduced antioxidative defence capacity in rat kidneys
and heart. Given the scarcity of data about CLO, ZIP and
SER actions on the brain redox homeostasis, the goal of current
study was to investigate their impact on antioxidant enzymes:
total superoxide dismutase (SOD), catalase (CAT), glutathione
peroxidase (GPx) and glutathione reductase (GR) in brain of 3 month old male Wistar rats treated daily via intubation with
water (control group), CLO (45 mg/kg/day), ZIP (20 mg/kg/day)
or SER (2.5 mg/kg/day) for 6 weeks. There were no significant
changes in investigated parameters in CLO and ZIP groups.
However, in SER group the total SOD activity was decreased
while CAT and GPx activities were increased compared to control
group (One-way ANOVA with Tukey’s HSD test, P < 0.05).
Since both CAT and GPx catalyze decomposition of H2O2, their
increased activity in SER group suggests an elevated peroxide
pressure. This conclusion can be strengthened since the activity
of SOD can be decreased by elevated concentration of H2O2.
Our results suggest that SER could cause a redox imbalance in
brain with possible negative effects on mitochondrial respiration
and neural tissue metabolism. *The authors marked with an
asterisk equally contributed to the work.
PB  - Hoboken : John Wiley & Sons Ltd
C3  - The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal
T1  - Chronic treatment with sertindole, but not clozapine and ziprasidone, affects redox homeostasis in brain of male rats
DO  - 10.1002/2211-5463.13440
SP  - 299
ER  - 
@conference{
author = "Tatalović, Nikola and Nikolić-Kokić, Aleksandra and Oreščanin Dušić, Zorana and Vidonja Uzelac, Teodora and Grahovac, Tanja and Blagojević, Duško and Miljević, Čedo",
year = "2022",
abstract = "Atypical antipsychotic drugs (APDs) are being used to treat
acute psychotic episodes in schizophrenia and schizophrenia-related
diseases as well as a variety of nonpsychotic disorders.
Despite their effectiveness, we showed that APDs clozapine
(CLO), ziprasidone (ZIP) and sertindole (SER) increased oxidative
stress and reduced antioxidative defence capacity in rat kidneys
and heart. Given the scarcity of data about CLO, ZIP and
SER actions on the brain redox homeostasis, the goal of current
study was to investigate their impact on antioxidant enzymes:
total superoxide dismutase (SOD), catalase (CAT), glutathione
peroxidase (GPx) and glutathione reductase (GR) in brain of 3 month old male Wistar rats treated daily via intubation with
water (control group), CLO (45 mg/kg/day), ZIP (20 mg/kg/day)
or SER (2.5 mg/kg/day) for 6 weeks. There were no significant
changes in investigated parameters in CLO and ZIP groups.
However, in SER group the total SOD activity was decreased
while CAT and GPx activities were increased compared to control
group (One-way ANOVA with Tukey’s HSD test, P < 0.05).
Since both CAT and GPx catalyze decomposition of H2O2, their
increased activity in SER group suggests an elevated peroxide
pressure. This conclusion can be strengthened since the activity
of SOD can be decreased by elevated concentration of H2O2.
Our results suggest that SER could cause a redox imbalance in
brain with possible negative effects on mitochondrial respiration
and neural tissue metabolism. *The authors marked with an
asterisk equally contributed to the work.",
publisher = "Hoboken : John Wiley & Sons Ltd",
journal = "The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal",
title = "Chronic treatment with sertindole, but not clozapine and ziprasidone, affects redox homeostasis in brain of male rats",
doi = "10.1002/2211-5463.13440",
pages = "299"
}
Tatalović, N., Nikolić-Kokić, A., Oreščanin Dušić, Z., Vidonja Uzelac, T., Grahovac, T., Blagojević, D.,& Miljević, Č.. (2022). Chronic treatment with sertindole, but not clozapine and ziprasidone, affects redox homeostasis in brain of male rats. in The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal
Hoboken : John Wiley & Sons Ltd., 299.
https://doi.org/10.1002/2211-5463.13440
Tatalović N, Nikolić-Kokić A, Oreščanin Dušić Z, Vidonja Uzelac T, Grahovac T, Blagojević D, Miljević Č. Chronic treatment with sertindole, but not clozapine and ziprasidone, affects redox homeostasis in brain of male rats. in The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal. 2022;:299.
doi:10.1002/2211-5463.13440 .
Tatalović, Nikola, Nikolić-Kokić, Aleksandra, Oreščanin Dušić, Zorana, Vidonja Uzelac, Teodora, Grahovac, Tanja, Blagojević, Duško, Miljević, Čedo, "Chronic treatment with sertindole, but not clozapine and ziprasidone, affects redox homeostasis in brain of male rats" in The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal (2022):299,
https://doi.org/10.1002/2211-5463.13440 . .
4

Cellular redox homeostasis mediates contractility of isolated ileum of male Wistar rats

Grahovac, Tanja; Vidonja Uzelac, Teodora; Nikolić-Kokić, Aleksandra; Oreščanin Dušić, Zorana; Blagojević, Duško

(Hoboken : John Wiley & Sons Ltd, 2022)

TY  - CONF
AU  - Grahovac, Tanja
AU  - Vidonja Uzelac, Teodora
AU  - Nikolić-Kokić, Aleksandra
AU  - Oreščanin Dušić, Zorana
AU  - Blagojević, Duško
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5185
AB  - Redox-mediated mechanisms play an important role in regulating
smooth muscle contractility and depend on subtle redox homeostasis
maintaining. Redox homeostasis in cells is obtained by
the activity of antioxidant enzymes. Among them, glutathione
reductase constantly reduces oxidized glutathione, providing a
favorable cellular redox milieu. The aim of this study was to
examine whether, to what extent and in what way changes in
smooth muscle contractility occurred in conditions when glutathione
reductase activity was changed. The experiments were
performed on isolated ileum of male Wistar rats, electrically stimulated
and treated with cumulative doses of carmustine, a glutathione
reductase inhibitor. The activity of antioxidant enzymes(catalase, glutathione reductase and glutathione peroxidase, as
well as the amount of total SH groups and glutathione) was
determined in treated ileum. The addition of carmustine inhibited
glutathione reductase activity and decreased amplitude and frequency
of electrically stimulated ileum. The results showed that
glutathione reductase activity and maintenance of highly reductive
cellular environment were essential to contractility processes.
PB  - Hoboken : John Wiley & Sons Ltd
C3  - The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal
T1  - Cellular redox homeostasis mediates contractility of isolated ileum of male Wistar rats
DO  - 10.1002/2211-5463.13440
SP  - 220
EP  - 221
ER  - 
@conference{
author = "Grahovac, Tanja and Vidonja Uzelac, Teodora and Nikolić-Kokić, Aleksandra and Oreščanin Dušić, Zorana and Blagojević, Duško",
year = "2022",
abstract = "Redox-mediated mechanisms play an important role in regulating
smooth muscle contractility and depend on subtle redox homeostasis
maintaining. Redox homeostasis in cells is obtained by
the activity of antioxidant enzymes. Among them, glutathione
reductase constantly reduces oxidized glutathione, providing a
favorable cellular redox milieu. The aim of this study was to
examine whether, to what extent and in what way changes in
smooth muscle contractility occurred in conditions when glutathione
reductase activity was changed. The experiments were
performed on isolated ileum of male Wistar rats, electrically stimulated
and treated with cumulative doses of carmustine, a glutathione
reductase inhibitor. The activity of antioxidant enzymes(catalase, glutathione reductase and glutathione peroxidase, as
well as the amount of total SH groups and glutathione) was
determined in treated ileum. The addition of carmustine inhibited
glutathione reductase activity and decreased amplitude and frequency
of electrically stimulated ileum. The results showed that
glutathione reductase activity and maintenance of highly reductive
cellular environment were essential to contractility processes.",
publisher = "Hoboken : John Wiley & Sons Ltd",
journal = "The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal",
title = "Cellular redox homeostasis mediates contractility of isolated ileum of male Wistar rats",
doi = "10.1002/2211-5463.13440",
pages = "220-221"
}
Grahovac, T., Vidonja Uzelac, T., Nikolić-Kokić, A., Oreščanin Dušić, Z.,& Blagojević, D.. (2022). Cellular redox homeostasis mediates contractility of isolated ileum of male Wistar rats. in The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal
Hoboken : John Wiley & Sons Ltd., 220-221.
https://doi.org/10.1002/2211-5463.13440
Grahovac T, Vidonja Uzelac T, Nikolić-Kokić A, Oreščanin Dušić Z, Blagojević D. Cellular redox homeostasis mediates contractility of isolated ileum of male Wistar rats. in The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal. 2022;:220-221.
doi:10.1002/2211-5463.13440 .
Grahovac, Tanja, Vidonja Uzelac, Teodora, Nikolić-Kokić, Aleksandra, Oreščanin Dušić, Zorana, Blagojević, Duško, "Cellular redox homeostasis mediates contractility of isolated ileum of male Wistar rats" in The Biochemistry Global Summit: 25th IUBMB Congress: 46th FEBS Congress: 15th PABMB Congress; 2022 Jul 9-14; Lisbon, Portugal (2022):220-221,
https://doi.org/10.1002/2211-5463.13440 . .
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