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Stroke is the leading cause of death and disability. Therefore， it is critical to develop the approaches for improving recovery and neural repair after stroke. Recovery after stroke involves complex interrelated systems of neural repair. The whole process of neural repair requires a series of coordinated interactions， such as response of neuronal cell body to traumatic stimuli， neural stem cell proliferation and migration， axoplasmic transport of signaling molecules， construction of cytoskeleton， and formation of axonal growth cone， to achieve regeneration and growth. As a potential new target for the treatment of neurologic defects， neural remodeling has important research significance in both the specific mechanism of neural repair and the clinical treatment of neurologic defects. After brain injury， single therapy is often ineffective due to the complex mechanism of internal repair， and thus comprehensive therapy becomes the development direction to improve the brain repair. Invigorating qi and promoting blood can promote nerve function remodeling after injury through neural protection， angiogenesis， neurogenesis， loop reconstruction， and cytokine regulation， playing a key role in nerve repair after stroke. Its mechanism is associated with autophagy， immunomodulation， and microRNA regulation， which fully embodies the multi-pathway， multi-target， and overall regulation characteristics of invigorating Qi and activating blood. Therefore， it is of theoretical and guiding significance to study the brain function rehabilitation after stroke by invigorating qi and activating blood.
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Objective:To investigate the effect of Qixian Tongluo prescription on neural function recovery in patients with cerebral infarction and its mechanism. Method:A total of 100 inpatients （January to June，2020）with cerebral infarction in the Neurology Department of Wenzhou Hospital of Traditional Chinese Medicine were assigned to an experimental group （<italic>n</italic>=50） and a control group （<italic>n</italic>=50） according to the random number table. Both groups received conventional treatment of western medicine，while the experimental group took additional Qixian Tongluo prescription. Treatment lasted for 12 weeks. The clinical efficacy，National Institutes of Health Stroke Scale （NIHSS） score， the modified Barthel index （MBI），Fugl-Meyer assessment （FMA） score， and levels of brain-derived neurotrophic factor（BDNF），vascular endothelial growth factor（VEGF）， and stromal cell-derived factor-1（SDF-1） in peripheral blood of the two groups before and after treatment were compared. Result:The total response rate in the experimental group was 84.00%（42/50），higher than 66.00%（33/50） in the control group （<italic>Z</italic>=-7.365，<italic>P</italic><0.05）. There was no significant difference in the scores of MBI，FMA， and NIHSS before treatment between the two groups. The MBI and FMA scores of the two groups increased （<italic>P</italic><0.01）， and the NIHSS scores decreased （<italic>P</italic><0.05， <italic>P</italic><0.01）. Compared with the control group after treatment， the experimental group showed increased MBI and FMA scores and decreased NIHSS score （<italic>P</italic><0.05）. There was no significant difference in BDNF level between the two groups before and after treatment. The VEGF and SDF-1 levels in the peripheral blood of the two groups were higher than those before treatment （<italic>P</italic><0.05）， and the experimental group was higher than the control group （<italic>P</italic><0.05）. Conclusion:Qixian Tongluo prescription can effectively improve the clinical efficacy，the quality of life， and the prognosis of patients with cerebral infarction during convalescence. The underlying mechanism is associated with the promotion of the expression of endogenous VEGF and SDF-1 in the peripheral blood to activate the SDF-1/chemokine receptor 4（CXCR4） signaling pathway， induce the recruitment and mobilization of endothelial progenitor cells， and facilitate the angiogenesis and repair of ischemic brain tissues.
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Diabetic peripheral neuropathy (DPN) seriously affects the quality of life in patients with type 2 diabetes mellitus. This paper reviews the role of Chinese medicine in the main treatment goal of DPN, including protecting pancreatic β-cells, in the use of antioxidation therapy to delay disease progression, and in the endpoint of neural repair and regeneration. We propose that protecting the body from injury caused by high glucose and oxidative stress, and promoting repair and regeneration of nerves should be the research direction for the prevention and treatment of DPN.
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Spinal cord injury(SCI)can lead to varying degrees of somatic and autonomic dysfunction and seriously affect the quali-ty of life of patients.The neurobiology and function promotion effects of brain-derived neurotrophic factor(BDNF)after SCI have been extensively studied,including neuroprotection,neuroplasticity and process regulation of neuroinflamma-tion,etc.,as well as functional recovery.However,the adverse effects of BDNF after SCI,such as neuropathic pain and spasticity,were also studied.
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Objective To explore the effect of biphasic electrical stimulation (BES) on the proliferation and differentiation of rats olfactory bulb neural precursor cells (OB NPCs).Methods OB NPCs of one day old neonatal rats were isolated,cultured,passaged and identified.They were randomly divided into a control group and an electrical stimulation (ES) group.The OB NPCs in the ES group were exposed to BES with a 50 mV/mm or 100 mV/mm electric field for 24 hours with a pulse width of 8 ms,while the control group was not given electrical stimulation.The immunofluorescent technique and 3(4,5 dimethythiazol-2-y1)-2,5-diphenyl tetrazolium bromide (MTT) colorimetric assay were used to assess the cells' proliferation and differentiation.Results The cell viability and the number of glial fibrillary acidic protein positive cellsin the ES group were significantly higher than in the control group.Conclusions BES may be used as an auxiliary technique for improving cell survival and differentiation in stem cell-based transplantation therapy as it can promote proliferation and differentiation,at least of OB NPCs.
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@#Growth hormone mainly promotes metabolism, and growth and development, and works for all organs and organizations. Some studies have found that growth hormone also played a role in the neurogenesis and neural repair after neural diseases. This paper summarized the role of growth hormone in the treatment for some neural diseases and the possible mechanisms.
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Growth hormone mainly promotes metabolism, and growth and development, and works for all organs and organizations. Some studies have found that growth hormone also played a role in the neurogenesis and neural repair after neural diseases. This paper sum-marized the role of growth hormone in the treatment for some neural diseases and the possible mechanisms.
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Traditionally,the nellrorl of central nervous system has been regarded as lack of regeneration capability.Recent studies have found that cerebral ischemia may activate neurogenesis in brains of adult mammals,and bring new hope for neural repair after ischemic brain injury.It is very necessary to fully understand the site of neurogenesis,process and neurogenesis after cerebral ischemia and its regulation mechanisms in adult mammals.
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@#Neurotrophins promote and modulate the repair and regeneration of central nervous system (CNS) on the levels of synapses, neurites and neural cells, and even of the auxiliary structures of CNS. As to immune molecules, recent studies denied the classical doctrine that CNS is an immune privilege organ. In the last decade, it is found that immune responses can be beneficial for CNS repair. What are more, some macromolecules that were previously thought to be the members of the family of immune system play essential roles in the development and regeneration of the CNS. Therefore, the authors postulate that there are crosstalks between the neurotrophins and the immune molecules in the CNS.