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Assessing Lymphatic Uptake of Lipids Using Magnetic Resonance Imaging: A Feasibility Study in Healthy Human Volunteers with Potential Application for Tracking Lymph Node Delivery of Drugs and Formulation Excipients
- Source :
- Pharmaceutics, Volume 13, Issue 9, Pharmaceutics, Vol 13, Iss 1343, p 1343 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Dietary lipids and some pharmaceutical lipid excipients can facilitate the targeted delivery of drugs to the intestinal lymphatics. Here, the feasibility of magnetic resonance imaging (MRI) for imaging lipid uptake into the intestinal lymphatics was assessed, shedding light on which lymph nodes can be targeted using this approach. Three healthy male volunteers were scanned at 3.0 T at baseline, 120, 180, 240, and 300 min post high-fat meal. A sagittal multi-slice image was acquired using a diffusion-weighted whole-body imaging sequence with background suppression (DWIBS) (pre inversion TI = 260 ms). Changes in area, major, and minor axis length were compared at each time point. Apparent diffusion coefficient (ADC) was calculated (b = 0 and 600 s/mm2) across eight slices. An average of 22 nodes could be visualised across all time points. ADC increased at 120 and 180 min compared to the baseline in all three participants by an average of 9.2% and 6.8%, respectively. In two participants, mean node area and major axis lengths increased at 120 and 180 min relative to the baseline. In conclusion, the method described shows potential for repeated lymph node measurements and the tracking of lipid uptake into the lymphatics. Further studies should focus on methodology optimisation in a larger cohort.
- Subjects :
- lipid-based formulations
medicine.diagnostic_test
Focus (geometry)
business.industry
Pharmaceutical Science
Magnetic resonance imaging
Article
Sagittal plane
RS1-441
lipids
Intestinal lymphatics
Pharmacy and materia medica
medicine.anatomical_structure
Lymphatic system
lymph nodes
medicine
Effective diffusion coefficient
Lymph
intestinal lymphatic transport
Nuclear medicine
business
Lymph node
MRI
Subjects
Details
- ISSN :
- 19994923
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- Pharmaceutics
- Accession number :
- edsair.doi.dedup.....eb681cf792364a5f8369632beb1c5019
- Full Text :
- https://doi.org/10.3390/pharmaceutics13091343