Method for establishment of acute lung injury model of tree shrews and application of model
A technology for acute lung injury and construction methods, applied to medical preparations containing active ingredients, pharmaceutical formulas, organic active ingredients, etc., can solve problems such as increasing research difficulty, achieve efficient modeling methods, broaden the research cycle space, The effect of good industrialization prospects
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Embodiment 1
[0050] 1. Materials and methods:
[0051] 1.1 Experimental materials
[0052] 5 male tree shrews with a body weight of 120-160 g, no internal and external parasites, and normal tree shrews; purchased from Kunming Institute of Zoology, Chinese Academy of Sciences.
[0053] 1.2 Main reagents
[0054] Lipopolysaccharide (LPS) was purchased from Santa Cruz Biotechnology; isoflurane was purchased from Shenzhen Ruiwode Life Technology Co., Ltd.
[0055] 1.3 Preparation of the main solution
[0056] 200mg / kg LPS solution preparation: weigh 26mg of LPS crystals according to the weight of the tree shrew of 130g, and dissolve it in 400μL of PBS (pH=7.35-7.45).
[0057] 1.4 Main Instruments
[0058] Laryngoscope: Simeite 2012-58
[0059] Indwelling needle: BD 20G
[0060] Blood gas needle: BD blood gas needle (2mL)
[0061] Anesthesia machine: 510IP from Ruiwode Life Technology Co., Ltd.
[0062] Micro CT for live imaging of small animals: Super Nova CT (SNC-100)
[0063] Blood ...
Embodiment 2
[0090] 180mg / kg LPS solution preparation: weigh 23.4mg of LPS crystals according to the tree shrew's weight of 130g, and dissolve it in 400μL of PBS.
[0091] Take 2 male tree shrews with no internal and external parasites, normal tree shrews, weighing about 150 g; purchased from Kunming Institute of Zoology, Chinese Academy of Sciences.
[0092] Except that the dose of LPS solution administered by endotracheal intubation was 180 mg / kg, the experimental method and operation of this example were the same as those in Example 1.
[0093] (1) Animals were fasted for 12 hours, and water was not allowed; 180 mg / kg of LPS solution was administered through endotracheal intubation, and the dosage is shown in Table 3.
[0094] Table 3 Dosage
[0095]
[0096] (2) Results: After being induced by LPS, the tree shrews had obvious respiratory symptoms about 3 to 4 days, and their appetite was exhausted; blood gas analysis found that the oxygenation index OI(PaO 2 / FiO 2 ) were 166mmHg...
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