ABSTRACT
Doctors of past dynasties already understood deficiency of kidney essence,phlegm and blood stasis were important for dementia.As the increasing recognition about Alzheimer disease and the offer of 'toxin damaging brain vessel' hypothesis,we thought ?-Amyloid,the pathology of Alzheimer disease,had the character of damaging brain and marrow,so it belonged to internal toxin,internal toxin damaging brain and marrow was also the pathology of the disease.Deficiency of kidney essence was the precondition,insufficient brain and marrow and internal toxin damaging brain and marrow were the two causes of brain and marrow consumption and spirit dysfunction,which were the pathology of Alzheimer disease in Chinese medicine.
ABSTRACT
Objective:To observe the effect of Fufang Congrong Yizhi Capsule on myristoylated alanine-rich C-kinase substrate (MARCKS) mRNA level in hippocampus of old dementia rats induced by ?-amyloid(1-40). Methods: Animals were divided randomly into young group, old group, sham operation group, model group, western medicine group and Chinese medicine group. Model, western and Chinese medicine groups received ?-amyloid (1-40) intracerebroventrical injection to build dementia animal model, and then Chinese and westein medicine groups received Fufang Congrong Yizhi Capsule and donepezil for 14 days, respectively. To observe changes of behavior and MARCKS mRNA under the effect of Chinese and western medicine by Morris test and RT-PCR test. Results: Learning and memory function of Chinese and western medicine groups were better than that of model group. MARCKS mRNA of model group was increased significantly, that of Chinese medicine group was decreased compared with model group. Conclusion: Fufang Congrong Yizhi Capsule can reduce the level of MARCKS mRNA in hippocampus of old dementia rats caused by ?-amyloid(1-40), through which it can improve the learning and memory function of the dementia old rats.
ABSTRACT
AIM: To observe the dynamic alteration of myristoylated alanine-rich C kinase substrate(MARCKS) mRNA expression in rat hippocampus with acute multi-cerebral infarction,and discuss the relationship between the alteration of hippocampus MARCKS gene and ischemia damage.METHODS: The acute multi-cerebral infarction model was established by method of Kaneko.Neurological function deficits were evaluated in the behavior test.The consequences of cerebral ischemic damage were examined by histopathological analyses.The MARCKS mRNA expression was measured by semi-quantitative PCR.RESULTS: The rats in acute multi-cerebral infarction group showed different level changes of neurological function deficits.The hippocampus damage of histopathology became significant 24h after ischemia.At the same time,the MARCKS mRNA expression was upregulated at the area of rats hippocampus during ischemia,and its overexpression started 1h after ischemia,and reached maximum7d after ischemia.CONCLUSION: MARCKS mRNA of rat hippocampus overexpresses during acute cerebral ischemia.This MARCKS mRNA overexpression is related with hippocampus ischemia damage.
ABSTRACT
AIM: The purpose of this study was to investigate the expression of myristoylated alanine-rich C kinase substrate (MARCKS) and p-MARCKS during cerebral ischemia. METHODS: The multi-cerebral infarction model was established by method of Kaneko. The stroke symptoms and signs scoring system were used to evaluate the animal model. Microscope and electronic microscope were used to watch the structure of rat brain. The expression of MARCKS and p-MARCKS was measured by Western blotting. The expression pattern of these proteins was further analyzed for their distribution at cellular level by immunohistochemistry staining of the tissues. RESULTS AND CONCLUSION: The expression of MARCKS and p-MARCKS protein in acute ischemic brain were elevated compared with the normal and control group (P