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| 1 | Treatment of radiation-induced brain injury with bisdemethoxycurcumin显示文摘Radiation therapy is considered the most effective non-surgical treatment for brain tumors.However,there are no available treatments for radiation-induced brain injury.Bisdemethoxycurcumin(BDMC)is a demethoxy derivative of curcumin that has anti-proliferative,anti-inflammatory,and anti-oxidant properties.To determine whether BDMC has the potential to treat radiation-induced brain injury,in this study,we established a rat model of radiation-induced brain injury by administe ring a single 30-Gy vertical dose of irradiation to the whole brain,followed by intraperitoneal injection of 500μL of a 100 mg/kg BDMC solution every day for 5 successive weeks.Our res ults showed that BDMC increased the body weight of rats with radiation-induced brain injury,improved lea rning and memory,attenuated brain edema,inhibited astrocyte activation,and reduced oxidative stress.These findings suggest that BDMC protects against radiationinduced brain injury. | Yun-Qian Chang Gui-Juan Zhou Hong-Mei Wen Duan-Qun He Chen-Lin Xu Ya-Rui Chen Yi-Hui Li Shuang-Xi Chen Zi-Jian Xiao Ming Xie | 2023 | Neural Regeneration Research2023，18，2： | 4 |
| 2 | Mitochonic acid 5 regulates mitofusin 2 to protect microglia显示文摘Microglial apoptosis is associated with neuroinflammation and no effective strategies are currently available to protect microglia against inflammation-induced apoptosis. Mouse microglial BV-2 cells(5 × 10^6) were incubated with 10 μg/mL lipopolysaccharides for 12 hours to mimic an inflammatory environment. Then the cells were co-cultured with mitochonic acid 5(MA-5) for another 12 hours. MA-5 improved the survival of lipopolysaccharide-exposed cells. MA-5 decreased the activity of caspase-3, which is associated with apoptosis. MA-5 reduced the number of terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling-positive cells, and increased adenosine triphosphate levels in cells. MA-5 decreased the open state of the mitochondrial permeability transition pore and reduced calcium overload and diffusion of second mitochondria-derived activator of caspase(Smac). MA-5 decreased the expression of apoptosis-related proteins(mitochondrial Smac, cytoplasmic Smac, pro-caspase-3, cleaved-caspase-3, and caspase-9), and increased the levels of anti-apoptotic proteins(Bcl2 and X-linked inhibitor of apoptosis protein), mitochondria-related proteins(mitochondrial fusion protein 2, mitochondrial microtubule-associated proteins 1 A/1 B light chain 3 B II), and autophagy-related proteins(Beclin1, p62 and autophagy related 5). However, MA-5 did not promote mitochondrial homeostasis or decrease microglial apoptosis when Mitofusin 2 expression was silenced. This shows that MA-5 increased Mitofusin 2-related mitophagy, reversed cellular energy production and maintained energy metabolism in BV-2 cells in response to lipopolysaccharide-induced inflammation. These findings indicate that MA-5 may promote the survival of microglial cells via Mitofusin 2-related mitophagy in response to lipopolysaccharide-induced inflammation. | Jian Tan Shuang-Xi Chen Qing-Yun Lei Shan-Qing Yi Na Wu Yi-Lin Wang Zi-Jian Xiao Heng Wu | 2021 | Neural Regeneration Research2021，16，9： | 1 |
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