Human dental pulp stem cells differentiate into neural precursors but not into mature functional neurons

Large numbers of neuronal cells are needed for regenerative medicine to treat patients suffering from central nervous system diseases and deficits such as Parkinson’s disease and spinal cord injury. One suggestion has been the utilization of human dental pulp stem cells (hDPSCs) for production of neuronal cells which would offer a patient-specific cell source for these treatments. Neuronal differentiation of hDPSCs has been described previously. Here, we tested the differentiation of DPSCs into neuronal cells with previously reported protocol and characterized the cells according to their morphology, gene and protein expressions and most importantly according to their spontaneous electrical functionality with microelectrode array platform (MEA). Our results showed that even though hDPSC-derived neural progenitor stage cells could be produced, these cells did not mature further into functional neuronal cells. Thus, utilization of DPSCs as a cell source for producing grafts to treat neurological deficits requires more efforts before being optimal.

中国脱髓鞘性视神经炎诊断和治疗循证指南(2021年)

脱髓鞘性视神经炎(DON)是主要累及视神经的中枢神经系统炎性脱髓鞘疾病。准确诊断、降低复发率、改善预后一直是临床诊疗过程中关注的重点。随着有关DON临床诊断标志物、疾病分型及不同亚型治疗研究的深入,越来越多的临床证据不断涌现,迫切需要及时制定DON的诊断和治疗循证指南,指导临床进一步规范开展工作。为此中华医学会眼科学分会神经眼科学组联合兰州大学循证医学中心/世界卫生组织指南实施与知识转化合作中心,按照循证指南制定的方法和步骤,成立指南指导委员会、指南共识专家组和指南外审专家组以及指南制定工作组,通过调研临床一线神经眼科医师、眼科医师及神经内科医师,收集并整理临床关注问题,全面检索和系统评价国内外相关研究证据,制定新的系统评价,组织召开专家共识会议,深入访谈和剖析患者偏好和价值观,最终形成16条针对DON诊断和治疗的推荐意见,主要涉及分类和诊断、急性期和慢性期治疗、随访管理等方面,并对每条推荐意见进行详细的解释说明,以期为临床有效治疗DON和降低复发率发挥指导作用。(中华眼科杂志,2021,57:171-186)

卒中介入治疗培训指南：国际多学会共识文件

1背景 缺血性卒中是全球人口死亡和残疾的首要原因。很多急性大血管闭塞（emergent large vesselocclusion，ELVO）患者都会遗留长期残疾。事实上，这些颅内大动脉闭塞经常会导致大面积脑损伤，进而造成患者死亡或严重致残。