Noninvasive ultrasound deep brain stimulation of nucleus accumbens induces behavioral avoidance

Ultrasound stimulation is an emerging noninvasive option in treating neuropsychiatric disorders. The present study investigates the behavioral alterations resulting from ultrasound stimulation on the nucleus accumbens(NAc) in freely moving mice. Our results show that an acute ultrasound stimulation on the NAc, rather than the visual cortex or auditory cortex, led to a pronounced avoidance behavior, while repeated NAc ultrasound stimulation resulted in an obvious conditioned place aversion with changes in synaptic protein(Glu A1/2 subunit) expression. Notably, NAc ultrasound stimulation suppressed the morphine-induced conditioned place preference. The results provide evidence that NAc ultrasound stimulation can be applied as a potential noninvasive therapeutic option in treating psychiatric disorders.     

Photosynthesis Characteristics of Tall Fescue under Snow-Melting Agent,Acid Precipitation and Freeze-Thaw Stress

Russian Journal of Plant Physiology - To explore the physiological response characteristics of plant photosynthesis under acid precipitation stress (A stress), snow-melting agent stress (S stress),...     

(Z)-3-Hexenol Induces Tea Defense against Ectropis grisescens in the Field

Russian Journal of Plant Physiology - The tea geometrid Ectropis grisescens is an important pest of tea plant (Camellia sinensis (L.) O. Kuntze). It feeds on the new leaves and tender...     

iTRAQ-Based Proteomic Reveals Cell Cycle and Translation Regulation Involving in Peanut Buds Cold Stress

Russian Journal of Plant Physiology - Cold stress is one major threats to field crops. The cold tolerant ability is a key limiting factor for the popularization of peanut (Arachis hypogaea L.) in...     

应用型本科高校围绕解决生物工程专业复杂工程问题能力培养的课程体系思考与构建

准确把握专业复杂工程问题的特征与内涵是设置专业毕业要求、构建课程体系、设计教学内容的重要前提。文中通过讨论生物产业的复杂工程问题特征,挖掘长三角地区生物产业对于本科层次人才的需求,总结岗位典型任务和要求,阐述了典型任务中包含的复杂工程问题的内涵。在此基础上构建了多阶段培养解决生物工程专业复杂工程问题能力的课程体系。该课程体系结合产教深度融合的医药生物技术学院、教师科研反哺教学项目建设、课程团队与一流课程建设、覆盖全员的学生专业社团建设等多种措施,更好地支撑了解决复杂工程问题能力的培养。     

Ptk2b deletion improves mice folliculogenesis and fecundity via inhibiting follicle loss mediated by Erk pathway

Ptk2b has been found playing critical roles in oocyte maturation and subsequent fertilization in vitro. But what is the exact in vivo function in reproduction still elusive. Here, by constructing Ptk2b mutant mice, we found Ptk2b was not essential for mice fertility, unexpectedly, contrary to previously reported in vitro findings, we found Ptk2b ablation significantly improved female fecundity. Follicle counting indicated that the number of primordial follicles and growing follicles in matured mice was significantly increased in the absence of Ptk2b, whereas the primordial follicle formation showed no defects. We also found this regulation was in an autophosphorylation independent pathway, as autophosphorylation site mutant mice (PTK2B^Y402F) show no phenotype in female fertility. Further biochemistry studies revealed that Ptk2b ablation promotes folliculogenesis via Erk pathway mediate follicle survival. Together, we found a novel biological function of Ptk2b in folliculogenesis, which could be potentially used as a therapeutic target for corresponding infertility.