All Outputs (27)

Use of Magnetic Resonance Imaging for Visualization of Oral Dosage Forms in the Human Stomach: A Scoping Review (2024)
Journal Article
Akbar, T., Gershkovich, P., Stamatopoulos, K., Gowland, P. A., Stolnik, S., Butler, J., & Marciani, L. (2024). Use of Magnetic Resonance Imaging for Visualization of Oral Dosage Forms in the Human Stomach: A Scoping Review. Molecular Pharmaceutics, 21(4), 1553-1562. https://doi.org/10.1021/acs.molpharmaceut.3c01123

Oral dosage forms are the most widely and frequently used formulations to deliver active pharmaceutical ingredients (APIs), due to their ease of administration and noninvasiveness. Knowledge of intragastric release rates and gastric mixing is crucial... Read More about Use of Magnetic Resonance Imaging for Visualization of Oral Dosage Forms in the Human Stomach: A Scoping Review.

Development of lipophilic ester prodrugs of dolutegravir for intestinal lymphatic transport (2023)
Journal Article
Chu, Y., Wong, A., Chen, H., Ji, L., Qin, C., Feng, W., …Gershkovich, P. (2023). Development of lipophilic ester prodrugs of dolutegravir for intestinal lymphatic transport. European Journal of Pharmaceutics and Biopharmaceutics, 191, 90-102. https://doi.org/10.1016/j.ejpb.2023.08.015

The establishment of latent cellular and anatomical viral reservoirs is a major obstacle to achieving a cure for people infected by HIV. Mesenteric lymph nodes (MLNs) are one of the most important anatomical reservoirs of HIV. Suboptimal levels of an... Read More about Development of lipophilic ester prodrugs of dolutegravir for intestinal lymphatic transport.

Evaluation of cannabidiol nanoparticles and nanoemulsion biodistribution in the central nervous system after intrathecal administration for the treatment of pain (2023)
Journal Article
Muresan, P., Woodhams, S., Smith, F., Taresco, V., Shah, J., Wong, M., …Marlow, M. (2023). Evaluation of cannabidiol nanoparticles and nanoemulsion biodistribution in the central nervous system after intrathecal administration for the treatment of pain. Nanomedicine: Nanotechnology, Biology and Medicine, 49, Article 102664. https://doi.org/10.1016/j.nano.2023.102664

We investigated how the biodistribution of cannabidiol (CBD) within the central nervous system (CNS) is influenced by two different formulations, an oil-in-water (O/W) nanoemulsion and polymer-coated nanoparticles (PCNPs). We observed that both CBD f... Read More about Evaluation of cannabidiol nanoparticles and nanoemulsion biodistribution in the central nervous system after intrathecal administration for the treatment of pain.

Development of nanoparticle loaded microneedles for drug delivery to a brain tumour resection site (2022)
Journal Article
Muresan, P., McCrorie, P., Smith, F., Vasey, C., Taresco, V., Scurr, D. J., …Marlow, M. (2023). Development of nanoparticle loaded microneedles for drug delivery to a brain tumour resection site. European Journal of Pharmaceutics and Biopharmaceutics, 182, 53-61. https://doi.org/10.1016/j.ejpb.2022.11.016

Systemic drug delivery to the central nervous system (CNS) has been historically impeded by the presence of the blood brain barrier rendering many therapies inefficacious to any cancer cells residing within the brain. Therefore, local drug delivery s... Read More about Development of nanoparticle loaded microneedles for drug delivery to a brain tumour resection site.

Editorial: Lymphatic delivery and targeting of drugs, vaccines, and imaging agents (2022)
Journal Article
Han, S., Trevaskis, N., Gershkovich, P., & Kagan, L. (2022). Editorial: Lymphatic delivery and targeting of drugs, vaccines, and imaging agents. Frontiers in Pharmacology, 13, Article 1011778. https://doi.org/10.3389/fphar.2022.1011778

The lymphatic system plays a key role in the (patho) physiology of a number of diseases, including autoimmune/inflammatory disorders, cancer, infections, and metabolic syndrome. Biological pathways in the lymphatic system provide new promising treatm... Read More about Editorial: Lymphatic delivery and targeting of drugs, vaccines, and imaging agents.

Is oral lipid-based delivery for drug targeting to the brain feasible? (2022)
Journal Article
Brookes, A., Ji, L., Bradshaw, T. D., Stocks, M., Gray, D., Butler, J., & Gershkovich, P. (2022). Is oral lipid-based delivery for drug targeting to the brain feasible?. European Journal of Pharmaceutics and Biopharmaceutics, 172, 112-122. https://doi.org/10.1016/j.ejpb.2022.02.004

This review outlines the feasibility of oral lipid-based targeted delivery of drugs to the brain, including permeation of the central nervous system's (CNS) protective blood–brain barrier (BBB). The structure of the BBB and disruption caused by varyi... Read More about Is oral lipid-based delivery for drug targeting to the brain feasible?.

Application of In Vivo MRI Imaging to Track a Coated Capsule and Its Disintegration in the Gastrointestinal Tract in Human Volunteers (2022)
Journal Article
Sulaiman, S., Gershkovich, P., Hoad, C. L., Calladine, M., Spiller, R. C., Stolnik, S., & Marciani, L. (2022). Application of In Vivo MRI Imaging to Track a Coated Capsule and Its Disintegration in the Gastrointestinal Tract in Human Volunteers. Pharmaceutics, 14(2), Article 270. https://doi.org/10.3390/pharmaceutics14020270

Oral specially coated formulations have the potential to improve treatment outcomes of a range of diseases in distal intestinal tract whilst limiting systemic drug absorption and adverse effects. Their development is challenging, partly because of li... Read More about Application of In Vivo MRI Imaging to Track a Coated Capsule and Its Disintegration in the Gastrointestinal Tract in Human Volunteers.

Emergent SARS-CoV-2 variants: comparative replication dynamics and high sensitivity to thapsigargin (2021)
Journal Article
Al-Beltagi, S., Goulding, L. V., Chang, D. K., Mellits, K. H., Hayes, C. J., Gershkovich, P., …Chang, K.-C. (2021). Emergent SARS-CoV-2 variants: comparative replication dynamics and high sensitivity to thapsigargin. Virulence, 12(1), 2946-2956. https://doi.org/10.1080/21505594.2021.2006960

The struggle to control the COVID-19 pandemic is made challenging by the emergence of virulent SARS-CoV-2 variants. To gain insight into their replication dynamics, emergent Alpha (A), Beta (B) and Delta (D) SARS-CoV-2 variants were assessed for thei... Read More about Emergent SARS-CoV-2 variants: comparative replication dynamics and high sensitivity to thapsigargin.

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 (2021)
Journal Article
Jewell, A., Williams, H., Hoad, C. L., Gellert, P. R., Ashford, M. B., Butler, J., …Gershkovich, P. (2021). 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. Pharmaceutics, 13(9), Article 1343. https://doi.org/10.3390/pharmaceutics13091343

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... Read More about 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.

Oral administration of tipranavir with long-chain triglyceride results in moderate intestinal lymph targeting but no efficient delivery to HIV-1 reservoir in mesenteric lymph nodes (2021)
Journal Article
Sheriston, C., Medrano-Padial, C., Qin, C., Fischer, P. M., Feng, W., Chu, Y., …Ling, B. (2021). Oral administration of tipranavir with long-chain triglyceride results in moderate intestinal lymph targeting but no efficient delivery to HIV-1 reservoir in mesenteric lymph nodes. International Journal of Pharmaceutics, 602, Article 120621. https://doi.org/10.1016/j.ijpharm.2021.120621

The introduction of combination antiretroviral therapy (cART) led to substantial improvement in mortality and morbidity of HIV-1 infection. However, the poor penetration of antiretroviral agents to HIV-1 reservoirs limit the ability of the antiretrov... Read More about Oral administration of tipranavir with long-chain triglyceride results in moderate intestinal lymph targeting but no efficient delivery to HIV-1 reservoir in mesenteric lymph nodes.

Natural sesame oil is superior to pre-digested lipid formulations and purified triglycerides in promoting the intestinal lymphatic transport and systemic bioavailability of cannabidiol (2021)
Journal Article
Feng, W., Qin, C., Chu, Y. J., Berton, M., Lee, J. B., Zgair, A., …Gershkovich, P. (2021). Natural sesame oil is superior to pre-digested lipid formulations and purified triglycerides in promoting the intestinal lymphatic transport and systemic bioavailability of cannabidiol. European Journal of Pharmaceutics and Biopharmaceutics, 162, 43-49. https://doi.org/10.1016/j.ejpb.2021.02.013

© 2021 Elsevier B.V. Lipid-based formulations play a significant role in oral delivery of lipophilic drugs. Previous studies have shown that natural sesame oil promotes the intestinal lymphatic transport and oral bioavailability of the highly lipophi... Read More about Natural sesame oil is superior to pre-digested lipid formulations and purified triglycerides in promoting the intestinal lymphatic transport and systemic bioavailability of cannabidiol.

Structure-based design of highly selective 2,4,5-trisubstituted pyrimidine CDK9 inhibitors as anti-cancer agents (2021)
Journal Article
Shao, H., Foley, D. W., Huang, S., Abbas, A. Y., Lam, F., Gershkovich, P., …Wang, S. (2021). Structure-based design of highly selective 2,4,5-trisubstituted pyrimidine CDK9 inhibitors as anti-cancer agents. European Journal of Medicinal Chemistry, 214, Article 113244. https://doi.org/10.1016/j.ejmech.2021.113244

Cyclin-dependent kinases (CDKs) are a family of Ser/Thr kinases involved in cell cycle and transcriptional regulation. CDK9 regulates transcriptional elongation and this unique property has made it a potential target for several diseases. Due to the... Read More about Structure-based design of highly selective 2,4,5-trisubstituted pyrimidine CDK9 inhibitors as anti-cancer agents.

Thapsigargin Is a Broad-Spectrum Inhibitor of Major Human Respiratory Viruses: Coronavirus, Respiratory Syncytial Virus and Influenza A Virus (2021)
Journal Article
Al-Beltagi, S., Preda, C. A., Goulding, L. V., James, J., Pu, J., Skinner, P., …Chang, K.-C. (2021). Thapsigargin Is a Broad-Spectrum Inhibitor of Major Human Respiratory Viruses: Coronavirus, Respiratory Syncytial Virus and Influenza A Virus. Viruses, 13(2), Article 234. https://doi.org/10.3390/v13020234

The long-term control strategy of SARS-CoV-2 and other major respiratory viruses needs to in-clude antivirals to treat acute infections, in addition to the judicious use of effective vaccines. Whilst COVID-19 vaccines are being rolled out for mass va... Read More about Thapsigargin Is a Broad-Spectrum Inhibitor of Major Human Respiratory Viruses: Coronavirus, Respiratory Syncytial Virus and Influenza A Virus.

Strawberry decreases intraluminal and intestinal wall hydrolysis of testosterone undecanoate (2021)
Journal Article
Zgair, A., Dawood, Y., Ibrahem, S. M., Lee, J. B., Feng, W., Fischer, P. M., & Gershkovich, P. (2021). Strawberry decreases intraluminal and intestinal wall hydrolysis of testosterone undecanoate. Molecules, 26(1), Article 233. https://doi.org/10.3390/molecules26010233

Male hypogonadism is often treated by testosterone (T) replacement therapy such as oral administration of the ester prodrug, testosterone undecanoate (TU). However, the systemic exposure to T following oral TU is very low due to esterase-mediated met... Read More about Strawberry decreases intraluminal and intestinal wall hydrolysis of testosterone undecanoate.

Predicting intestinal and hepatic first-pass metabolism of orally administered testosterone 3 undecanoate 4 (2020)
Journal Article
Zgair, A., Dawood, Y., Ibrahim, S. M., Back, H.-M., Kagan, L., Gershkovich, P., & Lee, J. B. (2020). Predicting intestinal and hepatic first-pass metabolism of orally administered testosterone 3 undecanoate 4. Applied Sciences, 10(20), Article 7283. https://doi.org/10.3390/app10207283

The bioavailability of orally administered drugs could be impacted by intestinal and 12 hepatic first-pass metabolism. Testosterone undecanoate (TU), an orally administered ester prodrug 13 of testosterone, is significantly subjected to first-pass me... Read More about Predicting intestinal and hepatic first-pass metabolism of orally administered testosterone 3 undecanoate 4.

The Interplay Between Liver First-Pass Effect and Lymphatic Absorption of Cannabidiol and Its Implications for Cannabidiol Oral Formulations (2020)
Journal Article
Franco, V., Gershkovich, P., Perucca, E., & Bialer, M. (2020). The Interplay Between Liver First-Pass Effect and Lymphatic Absorption of Cannabidiol and Its Implications for Cannabidiol Oral Formulations. Clinical Pharmacokinetics, 59(12), 1493-1500. https://doi.org/10.1007/s40262-020-00931-w

For highly lipophilic drugs, passage into the intestinal lymphatic system rather than the portal vein following oral administration may represent a major alternative route of delivery into the general circulation. Increasing intestinal lymphatic tran... Read More about The Interplay Between Liver First-Pass Effect and Lymphatic Absorption of Cannabidiol and Its Implications for Cannabidiol Oral Formulations.

Development and validation of a cost-effective and sensitive bioanalytical HPLC-UV method for determination of lopinavir in rat and human plasma (2020)
Journal Article
Qin, C., Feng, W., Chu, Y. J., Lee, J. B., Berton, M., Bettonte, S., …Gershkovich, P. (2020). Development and validation of a cost-effective and sensitive bioanalytical HPLC-UV method for determination of lopinavir in rat and human plasma. Biomedical Chromatography, 34(11), Article e4934. https://doi.org/10.1002/bmc.4934

© 2020 The Authors. Biomedical Chromatography published by John Wiley & Sons Ltd A simple, sensitive and cost-effective HPLC-UV bioanalytical method for determination of lopinavir (LPV) in rat and human plasma was developed and validated. The plasm... Read More about Development and validation of a cost-effective and sensitive bioanalytical HPLC-UV method for determination of lopinavir in rat and human plasma.

Solid lipid nanoparticles self-assembled from spray dried microparticles (2019)
Journal Article
Sanchez-Vazquez, B., Lee, J. B., Strimaite, M., Buanz, A., Bailey, R., Gershkovich, P., …Williams, G. R. (2019). Solid lipid nanoparticles self-assembled from spray dried microparticles. International Journal of Pharmaceutics, 572, Article 118784. https://doi.org/10.1016/j.ijpharm.2019.118784

We report the self-assembly of drug-loaded solid lipid nanoparticles (SLNs) from spray dried microparticles comprising poly(vinylpyrrolidone) (PVP) loaded with glyceryl tristearate (GTS) and either indomethacin (IMC) or 5-fluorouracil (5-FU). When th... Read More about Solid lipid nanoparticles self-assembled from spray dried microparticles.

Quantitative prediction of oral bioavailability of a lipophilic antineoplastic drug bexarotene administered in lipidic formulation using a combined in vitro lipolysis/microsomal metabolism approach (2018)
Journal Article
Lee, J. B., Kim, T. H., Feng, W., Choi, H. G., Zgair, A., Shin, S., …Shin, B. S. (2019). Quantitative prediction of oral bioavailability of a lipophilic antineoplastic drug bexarotene administered in lipidic formulation using a combined in vitro lipolysis/microsomal metabolism approach. Pharmaceutical Sciences, 108(2), 1047-1052. https://doi.org/10.1016/j.xphs.2018.09.025

For performance assessment of the lipid-based drug delivery systems (LBDDS), in vitro lipolysis is commonly applied because traditional dissolution tests do not reflect the complicated in vivo micellar formation and solubilisation processes. Much of... Read More about Quantitative prediction of oral bioavailability of a lipophilic antineoplastic drug bexarotene administered in lipidic formulation using a combined in vitro lipolysis/microsomal metabolism approach.

Self-assembling benzothiazole-based gelators: a mechanistic understanding of in vitro bioactivation and gelation (2018)
Journal Article
Citossi, F., Smith, T., Lee, J. B., Segal, J., Gershkovich, P., Stocks, M. J., …Marlow, M. (in press). Self-assembling benzothiazole-based gelators: a mechanistic understanding of in vitro bioactivation and gelation. Molecular Pharmaceutics, 15(4), https://doi.org/10.1021/acs.molpharmaceut.7b01106

Low molecular weight gelators (LMWGs) of chemotherapeutic drugs represent a valid alternative to the existing poly-mer-based formulations used for targeted delivery of anticancer drugs. Herein we report the design and development of novel self-assemb... Read More about Self-assembling benzothiazole-based gelators: a mechanistic understanding of in vitro bioactivation and gelation.