Title |
Enhanced brain penetration of pretomanid by intranasal administration of an oil-in-water nanoemulsion
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Published in |
Nanomedicine, May 2018
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DOI | 10.2217/nnm-2017-0365 |
Pubmed ID | |
Authors |
Adeola Shobo, Annapurna Pamreddy, Hendrik G Kruger, Maya M Makatini, Tricia Naicker, Thavendran Govender, Sooraj Baijnath |
Abstract |
To enhance the drug delivery to the brain with an oil-in-water nanoemulsion of pretomanid via intranasal (IN) administration. The study involved 70 male Sprague-Dawley rats (160-180 g) that received either 20 mg/kg body weight (b.w.) a nanoemulsion or a 20 mg/kg b.w. of pretomanid in solution via the IN route. The drug was quantified by liquid chromatography-tandem mass spectrometry to investigate whole tissue-drug concentrations, and mass spectrometric imaging to visualize drug localization in the brain. Nanoemulsion delivery concentrations of pretomanid in the brain reached peak concentrations (Cmax) of 12,062.3 ng/g that is significantly higher than the required therapeutic level. The mass spectrometric imaging analysis clearly showed a time dependent and uniform distribution in the brain. The results of this study show that IN delivery of oil-in-water nanoemulsion may be very promising for targeting anatomical tuberculosis reservoirs, such as the brain. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Spain | 1 | 33% |
Unknown | 2 | 67% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 67% |
Science communicators (journalists, bloggers, editors) | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 43 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 4 | 9% |
Other | 3 | 7% |
Professor > Associate Professor | 3 | 7% |
Student > Bachelor | 2 | 5% |
Lecturer > Senior Lecturer | 2 | 5% |
Other | 7 | 16% |
Unknown | 22 | 51% |
Readers by discipline | Count | As % |
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Pharmacology, Toxicology and Pharmaceutical Science | 6 | 14% |
Medicine and Dentistry | 6 | 14% |
Neuroscience | 2 | 5% |
Chemistry | 2 | 5% |
Economics, Econometrics and Finance | 1 | 2% |
Other | 2 | 5% |
Unknown | 24 | 56% |