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The role of GluN1 activated nitric oxide synthase in a rat model of post-traumatic stress disorder

67 - 72, 15.05.2016
https://doi.org/10.5472/marumj.v29i22239.238739

Abstract

Objectives: Activation of neuronal nitric oxide synthase (nNOS)

and interrelated alterations of calmodulin and ionotropic glutamate

receptor (GluN1) levels are unknown in post traumatic stress

disorder (PTSD).

Materials and Methods: Sprague-Dawley rats of both sexes

were exposed to dirty cat litter, and then placed on an elevated

plus maze. An anxiety index was calculated and tissue samples

from hippocampus and amygdala were prepared in order to detect

calmodulin, NOS and GluN1 by immunoblotting.

Results: The anxiety indices of the traumatized rats were

markedly higher than those of the controls (p<0.05). GluN1 and

calmodulin levels were decreased in the dorsal hippocampus and

amygdaloid complex of the traumatized rats. NOS expression

increased significantly in both the amygdaloid complex and dorsal

hippocampus where the increase was statistically more prominent

in the amygdaloid complex (p< 0.001) than in the dorsal

hippocampus of the traumatized rats (p<0.05).

Conclusion: Predator exposure in rats causes long-lasting

anxiogenic effects associated with increases in NOS and decreases

in GluN1 expressions in brain areas related to PTSD symptoms

and excitotoxicity. The results suggest that excitotoxicity occurs

through other mechanisms rather than GluN1 receptors.

References

  • Yamamoto Y, Katsumata O, Furuyama S, Sugiya H. Ca2+, calmodulin and phospholipids regulate nitric oxide synthase activity in the rabbit submandibular gland. J Comp Physiol 2004;174: 593-9. doi: 10.1007/s00360-004-0448-y
  • Courtney MJ, Nicholls DG. Interactions between phospholipase C-coupled and N-methyl-D-aspartate receptors in cultured cerebellar granule cells: protein kinase C mediated inhibition of N-methyl-D-aspartate responses. J Neurochem 1992;59:983-92. doi: 10.1111/j.1471-4159.1992.tb08339.x

Post travmatik stres bozukluğu sıçan modelinde GluN1 ile aktiflenmiş nitrik oksit sentetazın rolü

67 - 72, 15.05.2016
https://doi.org/10.5472/marumj.v29i22239.238739

Abstract

Amaç: Post travmatik stres bozukluğunda (PTSD) iyonotropik glutamat reseptör (GluN1)’lerinin (GluN1) ve kalmodülinin birlikte etki ederek nitrik asit sentaz (NOS) aktivasyonu yaptığı bilinmemektedir.Gereç ve Yöntem: Her iki cinsiyetten Sprague-Dawley sıçanları kirli kedi kumuyla saldırgan hayvan kokusuna maruz bırakıldıktan sonra, sıçanlara yükseltilmiş t labirenti deneyleri uygulanmıştır. Deney sonrası sıçanların anksiyete endeksleri hesaplanmış ve kalmodülin, NOS ve GluN1 ölçümleri için hipokampüs ve amigdala doku örnekleri Western Blot yöntemi için hazırlanmıştır.Bulgular: Travmatize edilen sıçanların anksiyete indeksleri kontrol grubuna göre anlamlı olarak yüksek bulunmuştur (p < 0.05). Dorsal hipokampüs ve amygdaloid komplekste travmatize sıçanların GluN1 ve kalmodülin düzeyleri azalmıştır. NOS ekspresyonu her iki bölgede artış göstermesine karşın, amigdaloid kompleksteki artış (p < 0.001) dorsal hipokampüse göre (p < 0.05) istatiksel olarak daha anlamlı bulunmuştur.Sonuç: Saldırgan hayvan kokusu maruziyeti sıçanlarda, PTSD semptomları ve eksitotoksisite ile ilişkili beyin alanlarında nNOS ekspresyonunda artma ve GluN1 reseptörlerinde azalma ile birlikte uzun süre devam eden anksiyete ilişkili etkilere neden olmaktadır. Sonuçlarımız, NOS aktivitesinin GluN1 dışındaki nedenlerle arttığını göstermektedir

References

  • Yamamoto Y, Katsumata O, Furuyama S, Sugiya H. Ca2+, calmodulin and phospholipids regulate nitric oxide synthase activity in the rabbit submandibular gland. J Comp Physiol 2004;174: 593-9. doi: 10.1007/s00360-004-0448-y
  • Courtney MJ, Nicholls DG. Interactions between phospholipase C-coupled and N-methyl-D-aspartate receptors in cultured cerebellar granule cells: protein kinase C mediated inhibition of N-methyl-D-aspartate responses. J Neurochem 1992;59:983-92. doi: 10.1111/j.1471-4159.1992.tb08339.x
There are 2 citations in total.

Details

Subjects Clinical Sciences
Journal Section Articles
Authors

Beycan Ayhan This is me

Aslı Aykaç This is me

Kutlay Gür This is me

Banu Aydın This is me

Ece Seçgin This is me

İrem Seven This is me

Hülya Cabadak This is me

Zafer Gören This is me

Publication Date May 15, 2016
Published in Issue Year 2016

Cite

APA Ayhan, B., Aykaç, A., Gür, K., Aydın, B., et al. (n.d.). The role of GluN1 activated nitric oxide synthase in a rat model of post-traumatic stress disorder. Marmara Medical Journal, 29(2?), 67-72. https://doi.org/10.5472/marumj.v29i22239.238739
AMA Ayhan B, Aykaç A, Gür K, Aydın B, Seçgin E, Seven İ, Cabadak H, Gören Z. The role of GluN1 activated nitric oxide synthase in a rat model of post-traumatic stress disorder. Marmara Med J. 29(2?):67-72. doi:10.5472/marumj.v29i22239.238739
Chicago Ayhan, Beycan, Aslı Aykaç, Kutlay Gür, Banu Aydın, Ece Seçgin, İrem Seven, Hülya Cabadak, and Zafer Gören. “The Role of GluN1 Activated Nitric Oxide Synthase in a Rat Model of Post-Traumatic Stress Disorder”. Marmara Medical Journal 29, no. 2? n.d.: 67-72. https://doi.org/10.5472/marumj.v29i22239.238739.
EndNote Ayhan B, Aykaç A, Gür K, Aydın B, Seçgin E, Seven İ, Cabadak H, Gören Z The role of GluN1 activated nitric oxide synthase in a rat model of post-traumatic stress disorder. Marmara Medical Journal 29 2? 67–72.
IEEE B. Ayhan, A. Aykaç, K. Gür, B. Aydın, E. Seçgin, İ. Seven, H. Cabadak, and Z. Gören, “The role of GluN1 activated nitric oxide synthase in a rat model of post-traumatic stress disorder”, Marmara Med J, vol. 29, no. 2?, pp. 67–72, doi: 10.5472/marumj.v29i22239.238739.
ISNAD Ayhan, Beycan et al. “The Role of GluN1 Activated Nitric Oxide Synthase in a Rat Model of Post-Traumatic Stress Disorder”. Marmara Medical Journal 29/2? (n.d.), 67-72. https://doi.org/10.5472/marumj.v29i22239.238739.
JAMA Ayhan B, Aykaç A, Gür K, Aydın B, Seçgin E, Seven İ, Cabadak H, Gören Z. The role of GluN1 activated nitric oxide synthase in a rat model of post-traumatic stress disorder. Marmara Med J.;29:67–72.
MLA Ayhan, Beycan et al. “The Role of GluN1 Activated Nitric Oxide Synthase in a Rat Model of Post-Traumatic Stress Disorder”. Marmara Medical Journal, vol. 29, no. 2?, pp. 67-72, doi:10.5472/marumj.v29i22239.238739.
Vancouver Ayhan B, Aykaç A, Gür K, Aydın B, Seçgin E, Seven İ, Cabadak H, Gören Z. The role of GluN1 activated nitric oxide synthase in a rat model of post-traumatic stress disorder. Marmara Med J. 29(2?):67-72.