Blar i forfatter "Hunt, Nicholas J"

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    • The Effects of Metformin on Age-Related Changes in the Liver Sinusoidal Endothelial Cell 

      Hunt, Nicholas J; Lockwood, Glen P; Kang, Sun; Pulpitel, Tamara; Clark, Ximonie; Mao, Hong; McCourt, Peter Anthony; Cooney, Greg; Wali, Jibran; Le Couteur, Frank; Le Couteur, David G; Cogger, Victoria C (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-14)
      Age-related changes in the liver sinusoidal endothelium, particularly the reduction in fenestrations, contribute to insulin resistance in old age. Metformin impacts on the aging process and improves insulin resistance. Therefore, the effects of metformin on the liver sinusoidal endothelium were studied. Metformin increased fenestrations in liver sinusoidal endothelial cells isolated from both young ...

    • Manipulating fenestrations in young and old liver sinusoidal endothelial cells 

      Hunt, Nicholas J; Lockwood, Glen P; Warren, Alessandra; Mao, Hong; McCourt, Peter Anthony; Le Couteur, David George; Cogger, Victoria Carroll (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-27)
      Fenestrations are pores within liver sinusoidal endothelial cells (LSECs) that enable the transfer of substrates (particularly insulin and lipoproteins) between blood and hepatocytes. With increasing age, there are marked reductions in fenestrations, referred to as pseudocapillarization. Currently, fenestrations are thought to be regulated by vascular endothelial growth factor and nitric oxide (NO) ...

    • Novel targets for delaying aging: The importance of the liver and advances in drug delivery 

      Hunt, Nicholas J; McCourt, Peter Anthony; Le Couteur, David George; Cogger, Victoria C (Journal article; Tidsskriftartikkel, 2018-09-21)
      Age-related changes in liver function have a significant impact on systemic aging and susceptibility to age-related diseases. Nutrient sensing pathways have emerged as important targets for the development of drugs that delay aging and the onset age-related diseases. This supports a central role for the hepatic regulation of metabolism in the association between nutrition and aging. Recently, a role ...

    • Opportunities and Challenges for Nanotherapeutics for the Aging Population 

      Hunt, Nicholas J; McCourt, Peter Anthony; Kuncic, Zdenka; Le Couteur, David G; Cogger, Victoria C (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-25)
      Nanotherapeutics utilize the properties of nanomaterials to alter the pharmacology of the drugs and therapies being transported, leading to changes in their biological disposition (absorption, distribution, cellular uptake, metabolism and elimination) and ultimately, their pharmacological effect. This provides an opportunity to optimize the pharmacology of drugs, particularly for those that are ...

    • Rapid Intestinal Uptake and Targeted Delivery to the Liver Endothelium Using Orally Administered Silver Sulfide Quantum Dots. 

      Hunt, Nicholas J; Lockwood, Glen P; Le Couteur, Frank H.; McCourt, Peter Anthony; Singla, Nidhi; Kang, Sun; Burgess, Andrew; Kuncic, Zdenka; Le Couteur, David G; Cogger, Victoria C (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-24)
      Quantum dots (QDs) are used for imaging and transport of therapeutics. Here we demonstrate rapid absorption across the small intestine and targeted delivery of QDs with bound materials to the liver sinusoidal endothelial cells (LSECs) or hepatocytes in vitro and in vivo following oral administration. QDs were radiolabeled with <sup>3</sup> H-oleic acid, with a fluorescent tag or <sup>14</su ...