title: [Study on establishing animal model of myocardial infarction of blood-stasis and Xin-qi deficiency syndrome or blood-stasis and Xin-yang deficiency syndrome type].
abstract: OBJECTIVE
  To investigate the method for establishing animal model of integrative medical disease/ syndrome and its evaluation.
  
  
  METHODS
  Rat myocardial (heart failure) model was established by anterio-descending coronary arterial ligation, and treated by nitric oxide synthase inhibitor 9-12 weeks after operation to induce hypertension and aggravate heart failure. The model rat was observed 12 weeks to collect the information of four-diagnosis, for visceral qi-blood and excess-deficiency syndrome differentiation in combining with the eight-principal syndrome differentiation according to the standard of deficiency syndrome and blood-stasis syndrom issued by Chinese Association of integrative medicine.
  
  
  RESULTS
  After modeling, the model rats revealed ascended ST segment and abnormal Q-wave in ECG, with the visceral ratio, left ventricular area and myocardial collagen content significantly more than those in the sham-operative group (P < 0.01), showing a blood-stasis syndrome. Besides, Xin-qi deficiency syndrome, exhibiting as quickened heart rate, shortened swimming time and lowered cardiac function, appeared in the model rats (P < 0.01), which was aggravated in the late stage due to the increased blood pressure and deteriorated cardiac function, even revealed the manifestation of Yang-deficiency syndrome as low body temperature and polyuria.
  
  
  CONCLUSIONS
  The basic thinking path of TCM animal disease/syndrome model establishment and evaluation should adopt the normative, mature and unified standard and methods formed in clinical and experimental study of integrative medicine.
authors.affiliation: Key Laboratory of Chinese Internal Medicine, Beijing University of Chinese Medicine, Beijing. doctor_wang@sohu.com
authors.forename: Shuo-Ren
authors.initials: SR
authors.lastname: Wang
authors.forename: Ming-Jing
authors.initials: MJ
authors.lastname: Zhao
authors.forename: Zhen-Tao
authors.initials: ZT
authors.lastname: Wang
mesh_terms: D000818:Animals; D003937:Diagnosis, Differential; D004195:Disease Models, Animal; D008297:Male; D008516:Medicine, Chinese Traditional; D009203:Myocardial Infarction / Q000473:pathology* / Q000503:physiopathology; D019413:Qi; D011897:Random Allocation; D051381:Rats; D017208:Rats, Wistar; D013577:Syndrome; D016711:Yang Deficiency / Q000473:pathology* / Q000503:physiopathology