Yan Haixia

Feature Extraction for Pulse Waveform in Traditional Chinese Medicine by Hemodynamic Analysis

Pulse diagnosis is one of important diagnosis methods in Traditional Chinese Medicine(TCM). Feature extraction of TCM pulse has received more and more attention in recent years. While most of previous methods for feature extraction of TCM pulse have no specific correlation with the mechanism of TCM pulse, a hemodynamics method was used to calculate the pulse waveform velocity(PWV) and pulse reflection factor(R) , which reflected the principle of TCM pulse diagnosis. The results showed that the PWV and R are significantly different among four TCM pulses including normal pulse, slippery pulse, wiry pulse and wiry-slippery pulse. It is concluded that the PWV and R may be used as the features for the classification of TCM pulses.

Influence of Three Kinds of Traditional Chinese Therapies on Airway Remodeling in Asthmatic Rats

Abstract This paper was aimed at observing the protective effects of traditional Chinese medicine (TCM) varying in therapeutic methods on airway remodeling in bronchial asthma. Three TCM decoctions, representing body resistance-strengthening therapy, lung-diffusing therapy, and combination therapy, were prepared and administrated peroral to asthmatic rats induced by ovalbumin. Eosinophils (EOS) were counted in bronchoalveolar lavage fluid (BALF), and levels of matrix metalloproteinase (MMP-9) and tissue inhibitors of metalloproteinase (TIMP)-1 were detected in serum by ELISA. The results showed that compared with the control group administration of TCM recipes is significantly effective in reducing EOS infiltration into BALF; there was a drop in MMP-1 level and a rise in TIMP-1 level. It was concluded that the three TCM therapies exerted similar protective effects against bronchial asthma. The improvement in airway remodeling can be attributed in part to the inhibiting infiltration of EOS, down-regulating MMP-9 expression and up-regulating TIMP-1 expression.

Clinical Distribution of Traditional Chinese Medicine Syndromes on Cardiovascular Diseases

Abstract This study aimed at analyzing the clinical distribution of traditional Chinese medicine (TCM) syndrome on cardiovascular diseases and at providing the basis for clinical diagnosis and treatment. Cases of cardiovascular disorder were collected on the basis of unified scales. Syndrome differentiation criteria were used in the identification of the scales. Then the distribution of TCM syndromes on cardiovascular diseases was analyzed. There were 3021 cases, including 1677 cases (55.51%) of heart-qi deficiency, 603 cases (19.96%) of heart- yang deficiency, 699 cases (23.14%) of heart-yin deficiency, 1121 cases (37.11%) of phlegm accumulation, 1624 cases (53.76%) of blood stagnation, and 2057 cases (68.10%) of the syndrome of mixed deficiency and excess. There were 517 cases (17.11%) with only deficiency syndromes and 447 cases (14.80 %) with only excess syndromes. The syndrome of the zang-fu organ is mostly related to the kidney and the spleen. It is concluded that the common clinical distribution of TCM syndromes on cardiovascular diseases is the syndrome of mixed deficiency and excess, which includes heart-qi deficiency, heart-yang deficiency, and heart-yin deficiency and excess syndromes of phlegm accumulation, blood stagnation, and qi stagnation.