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Full-Text Articles in Medicine and Health Sciences
Regulation Of Energy Stores And Feeding By Neuronal And Peripheral Creb Activity In Drosophila., Koichi Iijima, Lijuan Zhao, Christopher Shenton, Kanae Iijima-Ando
Regulation Of Energy Stores And Feeding By Neuronal And Peripheral Creb Activity In Drosophila., Koichi Iijima, Lijuan Zhao, Christopher Shenton, Kanae Iijima-Ando
Department of Biochemistry and Molecular Biology Faculty Papers
The cAMP-responsive transcription factor CREB functions in adipose tissue and liver to regulate glycogen and lipid metabolism in mammals. While Drosophila has a homolog of mammalian CREB, dCREB2, its role in energy metabolism is not fully understood. Using tissue-specific expression of a dominant-negative form of CREB (DN-CREB), we have examined the effect of blocking CREB activity in neurons and in the fat body, the primary energy storage depot with functions of adipose tissue and the liver in flies, on energy balance, stress resistance and feeding behavior. We found that disruption of CREB function in neurons reduced glycogen and lipid stores …
Mitochondrial Fragmentation Is Involved In Methamphetamine-Induced Cell Death In Rat Hippocampal Neural Progenitor Cells., Changhai Tian, L. Charles Murrin, Jialin C. Zheng
Mitochondrial Fragmentation Is Involved In Methamphetamine-Induced Cell Death In Rat Hippocampal Neural Progenitor Cells., Changhai Tian, L. Charles Murrin, Jialin C. Zheng
Journal Articles: Pharmacology & Experimental Neuroscience
Methamphetamine (METH) induces neurodegeneration through damage and apoptosis of dopaminergic nerve terminals and striatal cells, presumably via cross-talk between the endoplasmic reticulum and mitochondria-dependent death cascades. However, the effects of METH on neural progenitor cells (NPC), an important reservoir for replacing neurons and glia during development and injury, remain elusive. Using a rat hippocampal NPC (rhNPC) culture, we characterized the METH-induced mitochondrial fragmentation, apoptosis, and its related signaling mechanism through immunocytochemistry, flow cytometry, and Western blotting. We observed that METH induced rhNPC mitochondrial fragmentation, apoptosis, and inhibited cell proliferation. The mitochondrial fission protein dynamin-related protein 1 (Drp1) and reactive oxygen …