Dopamine neurotransmission plays an essential role in brain *** receptors including D1-and D2-like are subjected to regulation by a number of molecules such as protein kinases,anchor *** have identified that GSK3βis ...
详细信息
Dopamine neurotransmission plays an essential role in brain *** receptors including D1-and D2-like are subjected to regulation by a number of molecules such as protein kinases,anchor *** have identified that GSK3βis physically associated with D1 receptor in D1 transfected cells and in native brain *** found that the direct interaction between D1Rs and GSK-3βwas occurred at the S(417)PALS(421)motif in the C-terminus of *** of GSK-3βby either selective inhibitor or Si RNA impaired D1R activation along with a decrease in the D1R-GSK-3β***-3βinhibition reduced agonist-stimulated D1R desensitization and endocytosis and beta-arrestin *** that GSK-3βinteraction with D1R plays an important role in D1R *** present data reveals a novel mechanism for D1R functional regulation.
Cysteinyl cathepsins(Cats)have been implicated in the process of *** investigated the role of Cat K in ischemia-induced neovascularization with a special focus on Notch1 activation in old *** laser Doppler blood-flow ...
详细信息
Cysteinyl cathepsins(Cats)have been implicated in the process of *** investigated the role of Cat K in ischemia-induced neovascularization with a special focus on Notch1 activation in old *** laser Doppler blood-flow analysis revealed that the recovery of the ischemic/normal blood-flow ratio in Cat K Deficient old mice remained impaired throughout the follow-up *** the operative day14,Cat K deficiency also impaired capillary and collateral vessel *** K deficiency reduced the levels of cleaved Notch-1,p-Akt proteins in the ischemic muscles,and reduced circulating numbers of EPC-like CD31+/c-Kit+cells than young *** study demonstrated that Cat K deficiency impairs ischemia-induced neovascularization through a reduction of EPC angiogenic functions and it associated impairment of Notch1 signaling.
Cortical circuit mis-wiring underlying dysfunctional networks and aberrant behavior,and distortions in modulatory control nuclei contributing to the regulation of learning,memory,and mood,are hallmarks of *** availabl...
详细信息
Cortical circuit mis-wiring underlying dysfunctional networks and aberrant behavior,and distortions in modulatory control nuclei contributing to the regulation of learning,memory,and mood,are hallmarks of *** available treatment effectively addresses these different dimensions of neurological distortion expressed in this *** we conducted intensive auditory behavioral training in young rodent autism model(perinatal exposure to antidepressants)to evaluate the potential for recovery of the behavioral,neuroanatomical,and neurophysiological *** show that information processing deficits within the primary auditory cortex induced by early-life antidepressant exposure can be reversed to almost normal levels after behavioral ***-scale neuroanatomical changes withinserotonergic and dopaminergic neuromodulatory systems,and changes in parvalbumin-positive labeling indexing the functionality of this very important class of inhibitory GABAergic neurons are also reversed,suggesting continued plasticity and reversibility of neural network reorganization after early-life drug *** findings bear important clinical implications for behavioral interventions in autistic patients.
目的:探讨真核翻译起始因子eIF3a在博来霉素诱导的肺纤维化中的作用及下游蛋白NDRG1,p27,p53的表达。方法:(1)动物实验:雄性SD大鼠(200g±20g)20只,随机分为正常对照组和肺纤维化模型组(气管内滴注盐酸博莱霉素注射液:5mg/kg)。造模28天后处死,取血浆组织检测。(2)细胞实验:分离培养原代大鼠肺成纤维细胞,观察TGF-β1诱导细胞增殖和分化及对e IF3a、NDRG1的影响,同时分别使用e IF3a si RNA干扰片段观察e IF3a在这一过程中的作用。结果:(1)HE染色和Masson染色结果显示,与对照组相比,模型组肺组织肺泡壁厚度增加、基质增厚、肺间隔增宽,成纤维细胞增生,胶原沉积明显,Real Time PCR检测模型组Ⅰ型胶原和Ⅲ型胶原m RNA表达水平明显增高。(2)免疫组化结果显示,与对照组相比,NDRG1在纤维化组织中表达明显升高。(3)与对照组相比,模型组血浆TGF-β1含量及肺组织TGF-β1 m RNA和蛋白表达水平明显增高,α-SMA、e IF3a、NDRG1 m RNA和蛋白水平升高,p27、p53 m RNA水平下降。(4)TGF-β1显著促进肺成纤维细胞增殖、增加(S+G2)期细胞周期比率,同时促进细胞分化,α-SMA与Ⅰ、Ⅲ型胶原表达,并上调e IF3a,NDRG1表达,下调e IF3a表达能取消这一作用。结论:e IF3a在博来霉素诱导的肺纤维化中起重要作用,e IF3a可能通过上调NDRG1表达,下调p27,p53表达而影响肺纤维化过程。
Dopamine(DA)homeostasis is essential for a variety of brain *** transporter(DAT)-mediated DA reuptake is one of the most critical mechanisms for the control of normal DA ***,the molecular mechanisms underlying the reg...
详细信息
Dopamine(DA)homeostasis is essential for a variety of brain *** transporter(DAT)-mediated DA reuptake is one of the most critical mechanisms for the control of normal DA ***,the molecular mechanisms underlying the regulation of DAT activity in the brain invivo remain ***,we showed that a Rho family GEF protein Vav2 controls DAT cell surface expression and transporter activity through Vav2-dependent macropinocytosis of a protein complex,consisting of Vav2,glial cell line-derived neurotrophic factor cognate receptor Ret and *** deficient in either Vav2 or Ret displayed a remarkable elevation of DAT activity,resulting in a significant increase in the intracellular DA levels selectively in the nucleus ***2–/–mice exposed to cocaine showed reduced DAT activity and diminished behavioral cocaine *** data identifies Vav2 as a critical regulator of DAT trafficking in vivo and a determinant of limbic DA homeostasis.
Our recent studies have shown that the inferior collicular(IC)neurons of constant frequency-frequency modulation(CF-FM)bats could be classified into single-on(SO)and double-on(DO)responders according to their response...
详细信息
Our recent studies have shown that the inferior collicular(IC)neurons of constant frequency-frequency modulation(CF-FM)bats could be classified into single-on(SO)and double-on(DO)responders according to their responses to CF-FM stimuli,and DO neurons had short response latencies and recovery cycles than SO neurons(Fu et al.,2010,2014;Tang et al.,2011).The duration and amplitude of CF-FM bats’call would covary during hunting(Neuweiler,2003;Ulanovsky and Moss,2008).Then,what
暂无评论