Cerebral Blood Flow in Predator Stress-Resilient and -Susceptible Rats and Mechanisms of Resilience
Abstract
:1. Introduction
2. Results
2.1. Effect of PS on Behavior in an EPM
2.2. Effect of PS on Cerebral Blood Flow and on Factors That Affect Cerebral Blood Flow
2.3. Effect of PS on Cerebral eNOS mRNA
2.4. Effect of PS on Dopamine in the Cerebral Parietal Cortex
2.5. Effect of PS on Plasma Corticosterone
2.6. Effect of PS on Hemostatic Parameters
3. Discussion
4. Material and Methods
4.1. Animals and Experimental Procedure
4.2. Exposure to PS
4.3. Behavioral Testing
4.4. Measurement of Regional CBF
4.5. Blood and Tissue Collection and Storage
4.6. Measurement of eNOS mRNA
4.6.1. RNA Isolation
4.6.2. cDNA Synthesis and Real-Time RT–PCR
4.7. Dopamine Measurement
4.8. Corticosterone Measurement
4.9. Measurement of Hemostatic Parameters
4.10. Statistical Analysis
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Variable | Control Rats (n = 30) | PSs Rats (n = 18) | PSr Rats (n = 22) |
---|---|---|---|
Number of entries into closed arms | 10.3 ± 0.6 | 6.1 ± 0.3 * | 9.4 ± 0.5 # |
Number of entries into open arms | 6.3 ± 0.4 | 0.9 ± 0.1 * | 5.5 ± 0.3 # |
Time spent in closed arms, s | 346 ± 20 | 589 ± 32 * | 431± 26 # |
Time spent in open arms, s | 255 ± 12 | 10.2 ± 0.6 * | 170 ± 10 # |
Anxiety index | 0.61 ± 0.04 | 0.92 ± 0.05 * | 0.67 ± 0.04 # |
Groups | mRNA eNOS |
---|---|
Control (n = 5) | 3.44 ± 2.63 |
PSs (n = 5) | 0.5 ± 0.01 * |
PSr (n = 10) | 3.3 ± 0.25 # |
Variable | Control Rats (n = 10) | PSs Rats (n = 10) | PSr Rats (n = 10) |
---|---|---|---|
APTT, s | 23.6 ± 1.4 | 17.3 ± 0.7 *,# | 22.9 ± 1.2 |
PT, s | 13.9 ± 0.7 | 10.1 ± 0.6 *,# | 13.6 ± 0.6 |
Fibrinogen concentration, g/L | 2.7 ± 0.1 | 3.6 ± 0.4 *,# | 2.8 ± 0.2 |
Platelet aggregation, % | 48 ± 2 | 69 ± 2 *,# | 50 ± 3 |
Name of the Gene | Primer Sequence | Annealing Temperature, °C |
---|---|---|
eNOS | F GATCCTAACTTGCCTTGCATCCT R TGTAATCGGTCTTGCCAGAATCC | 58 |
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Kondashevskaya, M.V.; Downey, H.F.; Tseilikman, V.E.; Alexandrin, V.V.; Artem’yeva, K.A.; Aleksankina, V.V.; Tseilikman, O.B.; Pashkov, A.A.; Goryacheva, A.V.; Ivleva, I.S.; et al. Cerebral Blood Flow in Predator Stress-Resilient and -Susceptible Rats and Mechanisms of Resilience. Int. J. Mol. Sci. 2022, 23, 14729. https://doi.org/10.3390/ijms232314729
Kondashevskaya MV, Downey HF, Tseilikman VE, Alexandrin VV, Artem’yeva KA, Aleksankina VV, Tseilikman OB, Pashkov AA, Goryacheva AV, Ivleva IS, et al. Cerebral Blood Flow in Predator Stress-Resilient and -Susceptible Rats and Mechanisms of Resilience. International Journal of Molecular Sciences. 2022; 23(23):14729. https://doi.org/10.3390/ijms232314729
Chicago/Turabian StyleKondashevskaya, Marina V., H. Fred Downey, Vadim E. Tseilikman, Valery V. Alexandrin, Kseniya A. Artem’yeva, Valentina V. Aleksankina, Olga B. Tseilikman, Anton A. Pashkov, Anna V. Goryacheva, Irina S. Ivleva, and et al. 2022. "Cerebral Blood Flow in Predator Stress-Resilient and -Susceptible Rats and Mechanisms of Resilience" International Journal of Molecular Sciences 23, no. 23: 14729. https://doi.org/10.3390/ijms232314729