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2017 ; 12
(ä): 3253-3265
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Development of solid lipid nanoparticles containing total flavonoid extract from
Dracocephalum moldavica L and their therapeutic effect against myocardial
ischemia-reperfusion injury in rats
#MMPMID28458544
Tan ME
; He CH
; Jiang W
; Zeng C
; Yu N
; Huang W
; Gao ZG
; Xing JG
Int J Nanomedicine
2017[]; 12
(ä): 3253-3265
PMID28458544
show ga
Total flavonoid extract from Dracocephalum moldavica L. (TFDM) contains effective
components of D. moldavica L. that have myocardial protective function. However,
the cardioprotection function of TFDM is undesirable due to its poor solubility.
In order to improve the solubility and efficacy of TFDM, we developed TFDM-loaded
solid lipid nanoparticles (TFDM-SLNs) and optimized the formulation of TFDM-SLNs
using central composite design and response surface methodology. The
physicochemical properties of TFDM-SLNs were characterized, and the
pharmacodynamics was investigated using the myocardial ischemia-reperfusion
injury model in rats. The nanoparticles of optimal formulation for TFDM-SLNs were
spherical in shape with the average particle size of 104.83 nm and had a uniform
size distribution with the polydispersity index value of 0.201. TFDM-SLNs also
had a negative zeta potential of -28.7 mV to ensure the stability of the
TFDM-SLNs emulsion system. The results of pharmacodynamics demonstrated that both
TFDM and TFDM-SLN groups afforded myocardial protection, and the protective
effect of TFDM-SLNs was significantly superior to that of TFDM alone, based on
the infarct area, histopathological examination, cardiac enzyme levels and
inflammatory factors in serum. Due to the optimal quality and the better
myocardial protective effect, TFDM-SLNs are expected to become a safe and
effective nanocarrier for the oral delivery of TFDM.