Title |
Targeting delivery of Radix Ophiopogonis polysaccharide to ischemic/reperfused rat myocardium by long-circulating macromolecular and liposomal carriers
|
---|---|
Published in |
International Journal of Nanomedicine, September 2015
|
DOI | 10.2147/ijn.s89445 |
Pubmed ID | |
Authors |
Xiao Lin, ChunXia Yao, Fei Wu, Lan Shen, Yi Feng, Lina Wang |
Abstract |
Drug delivery to ischemic myocardium is an enormous challenge. This work aimed to characterize cardiac delivery behaviors of mono-polyethylene glycosylated (PEGylated) conjugates and long-circulating liposomes (L-Lps) with Radix Ophiopogonis polysaccharide (ROP) as drug. The results showed that compared to native ROP, 32-, 52-, and 45-fold increases in blood half-life were achieved by 20-kDa PEG mono-modified ROP (P20k-R), 40-kDa PEG mono-modified ROP (P40k-R), and ROP-loaded L-Lp, respectively. With comparable blood pharmacokinetics, ROP-loaded L-Lp showed both significantly higher targeting efficacy and drug exposure in infarcted myocardium than P40k-R. With regard to P20k-R, both its targeting efficacy and its level in infarcted myocardium at 3 hours postdose were comparable to P40k-R, but its level in blood and myocardium reduced obviously faster. As a whole, the results indicate that both loading in L-Lps and mono-PEGylation are effective in targeting drug to ischemic myocardium, but the former appears to induce stronger effects. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 4 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Practitioners (doctors, other healthcare professionals) | 3 | 75% |
Members of the public | 1 | 25% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Russia | 1 | 8% |
Unknown | 12 | 92% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Bachelor | 3 | 23% |
Student > Ph. D. Student | 2 | 15% |
Lecturer > Senior Lecturer | 1 | 8% |
Student > Doctoral Student | 1 | 8% |
Other | 1 | 8% |
Other | 2 | 15% |
Unknown | 3 | 23% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 3 | 23% |
Biochemistry, Genetics and Molecular Biology | 3 | 23% |
Pharmacology, Toxicology and Pharmaceutical Science | 2 | 15% |
Nursing and Health Professions | 1 | 8% |
Medicine and Dentistry | 1 | 8% |
Other | 0 | 0% |
Unknown | 3 | 23% |