Preparation and pharmacodynamic evaluation of naringenin lyophilized liposome / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
; (6): 208-214, 2015.
Article
in English
| WPRIM (Western Pacific)
| ID: wpr-257658
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To prepare the lyophilized powder of naringenin liposome and investigate its pharmacodynamics in rat models of acute lung injury (ALI).</p><p><b>METHODS</b>Naringenin liposome was prepared by ethanol injection method and then its quality was evaluated. Also, the related characteristics was evaluated by adding mannitol (5%,W/V) as lyoprotectant to be freeze-dried. The rat ALI models were established by inhaling lipopolysaccharide (LPS) (5 mg/kg). Totally 48 female Sprague-Dawley rats were randomly divided into six groupscontrol group(A), LPS group(B), LPS+naringenin group(C), LPS+lyophilized liposome group(D), LPS+dexamethasone group(E), and LPS+blank liposome group(F), with 8 rats in each group. Lung wet/dry weight ratio was calculated, and the histopathological morphologies were observed under the light microscope.</p><p><b>RESULTS</b>The encapsulation efficiency of the prepared liposome was (82.44 ± 0.98)%, the average particle size was (133 ± 11)nm, and the Zeta potential was (-35.9 ± 5)mV. The angle of repose of lyophilized powder was 36℃ and the bulk density was 0.3 g/ml. Compared with the group A, the lung tissues from groups B to F showed different remarkable histopathological changes under a light microscope, including infiltration of inflammatory cells, capillary congestion, hemorrhage, and marked thickening of the alveolar wall,among which group B and F changed the most significant, followed by group C, whereas groups D and E were the lightest. The wet/dry weight ratios increased in groups B to F compared with group A in some degree, and the increase of the lung wet/dry weight ratio in group D and E was significantly lower than in group B(P=0.0012, P=0.0018).</p><p><b>CONCLUSION</b>The technology of preparing naringenin liposome by ethanol injection is simple and feasible, and lyophilized powder has an obvious therapeutic effect on ALI.</p>
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Pharmacokinetics
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Lipopolysaccharides
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Rats, Sprague-Dawley
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Flavanones
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Acute Lung Injury
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Liposomes
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Lung
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Acta Academiae Medicinae Sinicae
Year:
2015
Document type:
Article