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• W2074587311 startingPage "e69340" @default.
• W2074587311 abstract "Background Our previous research indicated that apoptosis induced atrophy in the hippocampus of post-traumatic stress disorder (PTSD) rats. Endoplasmic reticulum (ER) stress-induced apoptosis has been implicated in the development of several disorder diseases. The aim of this study was to investigate whether endoplasmic reticulum-related pathway is involved in single-prolonged stress (SPS) induces apoptosis in the hippocampus of PTSD rats by examining the expression levels of three important indicators in the ER-related apoptotic pathway: Glucose-regulated protein (GRP) 78, caspase-12 and Ca2+/CaM/CaMkinaseIIα (CaMkIIα). Methods Wistar rats were sacrificed at 1, 4 and 7 days after SPS. SPS is a reliable animal model of PTSD. The apoptotic cells in the hippocampus were assessed by TUNEL method and transmission electron microscopy (TEM). Free intracellular Ca2+ concentration was measured. GRP78 expression was examined by immunohistochemistry, western blotting and RT-PCR. mRNA of caspase-12 and CaM/CaMkIIα were determined by RT-PCR. Results Our results showed that apoptotic cells were increased in the SPS rats. TEM analysis revealed characteristic morphological changes of apoptosis in these cells. We observed that GRP78 was significantly up-regulated during early PTSD, and then recovered at 7 days after SPS. By RT-PCR, we observed that the change in caspase-12 expression level was similar to that in GRP78. Moreover, the free intracellular Ca2+ concentration was significantly higher at 1 day after SPS and decreased in 7 days. CaM expression increased significantly, while CaMKIIα expression decreased significantly in the hippocampus at 1 day after SPS. Conclusion SPS induced change in the expression levels of GRP78, caspase-12 and Ca2+/CaM/CaMkIIα in the hippocampus of PTSD rats indicated that the endoplasmic reticulum pathway may be involved in PTSD-induced apoptosis." @default.
• W2074587311 created "2016-06-24" @default.
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• W2074587311 date "2013-07-19" @default.
• W2074587311 modified "2023-09-27" @default.
• W2074587311 title "Single-Prolonged Stress Induces Endoplasmic Reticulum - Dependent Apoptosis in the Hippocampus in a Rat Model of Post-Traumatic Stress Disorder" @default.
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• W2074587311 doi "https://doi.org/10.1371/journal.pone.0069340" @default.
• W2074587311 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3716639" @default.
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