Research on regularity of traditional Chinese medicine in treatment of Alzheimer's disease based on data mining / 中国中药杂志

To explore prescription medication regularity in the treatment of Alzheimer's disease with traditional Chinese medicine(TCM). With Alzheimer's disease or senile dementia as the subject, collecting and sorting out the journal papers in CNKI were collected as the data source to establish the literature research database of Alzheimer's disease prescriptions, and then the association rule analysis, factor analysis and systematic cluster analysis on the included TCM were conducted. Among the 113 prescriptions included in the standard, the single herb Acori Tatarinowii Rhizoma was the most common. The herbs were mainly warm and flat among four pro-perties, mainly sweet, bitter and spicy among five flavors. The drugs were mainly distributed in five internal organs, and the most commonly used drugs were deficiency tonifying drugs as well as blood activating and stasis removing drugs. In the association rule analysis, it was found that there were 6 drug pairs with the highest association strength. Eight common factors were extracted from the factor analysis, and they were classified into 6 categories in the systematic cluster analysis. The results have shown that the overall principles in treating Alzheimer's disease with modern Chinese medicine are tonifying deficiency, invigorating circulation, activating blood and dispelling phlegm.

Effect of Modified Dihuang Yinzi on Learning and Memory Ability and Neuron Damage in Hippocampal CA1 Area in Rats with Vascular Dementia / 中国实验方剂学杂志

Objective::To observe the effect of modified Dihuang Yinzi on the learning and memory ability and on the neurons in CA1 area of hippocampus of rats suffering from vascular dementia. Method::The 84 male SD rats were randomly selected to form the sham operation group of 12 rats, and the other 72 rats were chosen for the vascular dementia model by means of Bivascular occlusion, and among which 60 were chosen randomly into 6 groups of 12 rats, namely, the model group, the nimodipine group (0.011 g·kg-1), and the high, medium and low dose modified Dihuang Yinzi (4.54, 2.27, 1.14 g·kg-1) respectively. After 30 days of continuous gavage, Morris water maze was used to detect the learning and memory ability of rats, hematoxylin eosin (HE) was used to observe the morphological changes of hippocampal CA1 neurons, transmission electron microscopy was used to observe the ultrastructural changes of hippocampal CA1 neurons, TUNEL was used to detect the apoptosis level of hippocampal CA1 neurons, immunohistochemical(IHC) was used to detect the expression level of phosphatidylinositol-3(PI3K), protein kinase B (Akt), Caspase-3 in hippocampal CA1 tissues. Result::Compared with sham operation group, the escape latency of the model group was significantly prolonged, the number of times of crossing the original platform was significantly reduced (P<0.01), the neuronal morphology of hippocampal CA1 area was damaged to varying degrees, the apoptosis rate was significantly increased (P<0.01), the integral optical density and average optical density of PI3K, Akt were significantly reduced (P<0.01), and the integral optical density and average optical density of Caspase-3 were significantly reduced (P<0.01). Compared with model group, the escape latency was shortened (P<0.05, P<0.01), the number of crossing the original platform was increased (P<0.05, P<0.01), the integrated optical density and average optical density of PI3K and Akt were significantly increased (P<0.01), and the integrated optical density and average optical density of Caspase-3 were decreased in different degrees (P<0.05, P<0.01). Conclusion::Modified Dihuang Yinzi can improve the learning and memory ability of vascular dementia model rats and the damaged neurons in the hippocampal CA1 area. The potential mechanism may be related to the activation of PI3K/Akt signal transduction pathway and the inhibition of apoptosis of neurons in hippocampal CA1 area of rats.

Medicine in Future and Advantages of Integrated Chinese and Western Medicine / 中国结合医学杂志

The history of medical development shows that oriental medicine, or traditional medicine, was born through medical practice during the times when science and technology were immature and underdeveloped, whereas with the development of science and technology, Western medicine, or modern medicine, was born through experimental analysis and research. With the development of medicine, the pros and cons of both medical systems become increasingly evident. How to integrate them and learn from each other will be the direction of future development of medicine. The formation and development of integrated medicine will, inevitably, usher in a new era for medicine.

Experimental study on effect of anhydroicaritin phytosomes in preventing and treating bone loss and enhancing bone quality in ovariectomized osteoporosis rats / 中国中药杂志

<p><b>OBJECTIVE</b>To explore the effect of anhydroicaritin phytosomes (AIP) in preventing and treating bone loss and enhancing bone quality in ovariectomized osteoporosis rats.</p><p><b>METHOD</b>Seventy-two SD female rats were randomly divided into 6 groups: the sham group, the model group, the estrogen group and AIP groups (low, middle, high). The sham group was only sham operated, and the remaining five groups were ovariectomized. One week after the ovariectomy, the rats were given 17 beta-estrogen and AIP (15, 30, 60 mg x kg(-1)) for consecutively three months, during which period their serum calcium (s-Ca), serum phosphorus(s-P), alkaline phosphate (ALP), urine calcium (u-Ca), urine phosphorus(u-P), urinary deoxypyridinoline (D-Pyr) and creatinine (Cr) were detected. Subsequently, rats were sacrificed, and their thighbone, second lumbar vertebrate and forth lumbar vertebrate were collected to detect bone mineral density (BMD), bone calcium (b-Ca) and phosphorus (b-P), biomechanical properties and bone histomorphometric parameters.</p><p><b>RESULT</b>Compared with the sham group, the model group showed a significant increase in serum ALP, u-Ca and D-Pyr /Cr, and reduction in BMD of femur, b-Ca and b-P, biomechanical properties (elastic load, maximum load, break load, stiffness), static parameters (total tissue area, trabecular area, trabecular perimeter) and dynamic parameters (% L Pm, BFR/BV and BFR/ TV), with metratrophia. Compared with the model group, ALP high and middle-dose groups and the estrogen group showed a decrease in serum ALP, u-Ca and D-Pyr/Cr, and growth in BMD of femur, b-Ca and b-P, biomechanical properties of the forth lumbar vertebrae (elastic load, maximum load, break load, stiffness), static parameters (total tissue area, trabecular area, trabecular perimeter) and dynamic parameters (% L Pm, BFR/BV and BFR/TV). The beta-estrogen group showed endometrial hyperplasia, whereas AIP groups showed no hyperplastic change.</p><p><b>CONCLUSION</b>AIP could inhibit enhanced bone turnover induced by ovariectomy, improve BMD the biomechanical properties of vertebrae, without any stimulation on uterus.</p>

The influence of the different components of nourishing kidney herbs on osteoporosis rats / 中国中药杂志

<p><b>OBJECTIVE</b>To observe the influent of the different components of nourishing kidney herbs on the main items of bone metabolism in osteoporosis rats induced with Dexamethasona(DXM).</p><p><b>METHOD</b>Models of three-month old SD female rats with osteoporosis here made by being fed with low calcium diet (containing calcium 0.2%) and distilled water, and injected with DXM 0.1 mg/100 g weight intramuscularly, twice a week. Then the osteoporosis rats were treated with different components of nourishing kidney herbs, and the change of calcium, phosphate, alkaline phosphatase(ALP), calcitonin(CT), PTH, CT/PTH, estrogen(E2), testosterone(T), T/E2 and bone section and bone quantitative morphology in these osteoporosis rats were observed.</p><p><b>RESULT</b>The total components of nourishing kidney herbs could improve the general condition of osteoporosis rats, decrease PTH, increase CT, estrogen, testosterone, CT/PTH and T/E2. The total components of nourishing kidney herbs could improve osteoporotic state, promote bone formation, and inhibite bone resorption. But no effect of the A, B, C, D components of nourishing kidney herbs on the main items of bone metabolism in osteoporosis rats induced with DXM was found.</p><p><b>CONCLUSION</b>It is possible that the purification and separation of these herbs weaken or destroy the integrative effect of nourishing kidney herbs or destroy effective components of nourishing kidney herbs during the process of purification and separation.</p>