Application of aminooxyacetic acid (AOAA) in preparation of drug for preventing or treating myocardial infarction
A technology of aminooxyacetic acid and drugs, applied in drug combinations, pharmaceutical formulations, cardiovascular system diseases, etc., can solve problems that are difficult to be widely used, irreversible damage to heart tissue, and no research reports on aminooxyacetic acid myocardial infarction have yet been seen.
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Embodiment 1
[0018] Example 1: AOAA effectively improves cardiac function after myocardial infarction
[0019] Cardiac function after myocardial infarction detected by echocardiography
[0020] Mice were anesthetized (the same method as before), placed in the left lateral position after depilation, placed the probe of the cardiac ultrasound diagnostic instrument on the anterior wall of the heart, and took a two-dimensional short-axis view of the left ventricle at the level of the papillary muscle, and recorded M-scan at the same time, for 3 consecutive Cardiac cycle measurement left ventricular ejection fraction (EF), fractional shortening (FS) and left ventricular end diastolic diameter (LVEDD) and left ventricular end systolic diameter (LVESD).
[0021] Experimental results: Cardiac function was detected 28 days after myocardial infarction, and AOAA significantly improved cardiac function after myocardial infarction ( figure 1 ), ejection fraction ( figure 2 ) and short axis shortenin...
Embodiment 2
[0022] Example 2: AOAA effectively reduces the size of myocardial infarction
[0023] Masson staining: the mice were sacrificed 28 days after the operation, and the left ventricle tissue was taken for heart tissue staining to observe the therapeutic effect. Follow the routine Masson staining procedure, observe and take pictures under an ordinary light microscope. The image analysis software Image J was used to analyze the area of each part, and the area of myocardial infarction / heart area was calculated;
[0024] Experimental results: Masson staining was used to observe the infarct area of each group 28 days after myocardial infarction ( Figure 4 & 5), AOAA was found to effectively reduce the size of myocardial infarction; *P < 0.05.
[0025] 【in conclusion】
[0026] The above results comprehensively prove that: AOAA can effectively improve the cardiac function after myocardial infarction, effectively reduce the size of myocardial infarction, so as to prevent or tre...
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