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Shannon L Macauley, PhD

Connect

8593230598
Shannon.Macauley@uky.edu
HKRB Rm: 136, 741 South Limestone Street

Positions

  • Associate Professor

College Unit(s)

Other Affiliation(s)
  • KYAD-PREP

Biography and Education

Education

BA, Biology & Psychology, Middlebury College, Middlebury, VT

PhD, Neuroscience, Washington University School of Medicine, St Louis, MO

Postdoctoral Fellowship, Internal Medicine, Washington University School of Medicine, St Louis, MO

Postdoctoral Fellowship, Neurology, Washington University School of Medicine, St Louis, MO

Research

The goal of my laboratory is to understand how alterations in brain metabolism relate to sleep impairment, vascular dysfunction, and inflammation in Alzheimer’s disease. Ultimately, the goal is to leverage these findings as therapeutic targets for treating Alzheimer’s disease and other CNS disorders, like lysosomal storage diseases.

We use a translational approach that combines rodent models, non-human primates, and human data to explore how metabolic or vascular perturbations affect the progression of Alzheimer’s disease. For our rodent studies, we use a variety of in vivo techniques, including glucose clamps, in vivo microdialysis, in vivo biosensors, EEG/EMG recordings, and small animal neuroimaging to study the acute effects of metabolic challenges on Aβ/tau dynamics, cerebral metabolism, neuronal activity, neurovascular coupling, and sleep. We also use rodent models and non-human primates to investigate how different Alzheimer’s risk factors impact pathology, metabolism, brain network connectivity, and behavior, and whether pharmacological and non-pharmacological interventions targeting metabolic dysfunction reverse pathology and functional deficits in Alzheimer’s disease.

Selected Publications

  1. Irmen RE, Turner SM, Snipes AJ, Williams HC, Viswanathan VG, Sullivan PG, Lee DC, Johnson LA, Macauley SL. Tau pathology reprograms glucose metabolism to support cortical hyperexcitability, excitatory/inhibitory imbalance, and sleep loss. NPJ Dement. 2026;2(1):6. doi: 10.1038/s44400-025-00054-8. Epub 2026 Jan 23.
     
  2. Constantino NJ, Ashley CC, Macauley SL. The Energetic Collapse of the Alzheimer's Brain: Metabolic Inflexibility Across Cells and Networks. J Neurochem. 2025 Nov;169(11):e70294.doi: 10.1111/jnc.70294.
     
  3. Golden LR, Siano DS, Maclean SM, Stephens IO, Lee S, Smith C, Saito K, Chen J, Zhu H, Whitus CM, Goulding DS, Gorman AA, Hernandez G, Farmer BC, Pandya K, Cowley DO, Macauley SL, Gordon SM, Morganti JM, Johnson LA. APOE4 to APOE2 Allelic Switching Alters the Cerebral Transcriptome and Decreases Alzheimer’s Disease Neuropathology. Nature Neuroscience. 2025 Sep
     
  4. Constantino NJ, Carroll CM, Williams HC, Vekaria HJ, Yuede CM, Saito K, Sheehan PW, Snipes JA, Raichle ME, Musiek ES, Sullivan PG, Morganti JM, Johnson LA, Macauley SL. ATP-sensitive potassium channels alter glycolytic flux to modulate cortical activity and sleep. PNAS. 2025 Feb 25;122(8):e2416578122.
     
  5. Johnson LA and Macauley SL. Alzheimer’s and metabolism wed with IDO1. Science2024 Aug 23;385(6711):826-827. doi: 10.1126/science.adr5836.
     
  6. McIntyre CC, Lyday RG, Su Y, Nicklas B, Simpson SL, Deep G, Macauley SL, Hugenschmidt CE. Insulin resistance, cognition, and functional brain network topology in older adults with obesity. Sci Rep. 2025 Jul 2;15(1):22612.
     
  7. Wang X, Padawer-Curry JA, Bice AR, Kim B, Rosenthal ZP, Lee JM, Goyal MS, Macauley SL, Bauer AQ. Spatiotemporal relationships between neuronal, metabolic, and hemodynamic signals in the awake and anesthetized mouse brain. Cell Rep. 2024 Sep 24;43(9):114723.
     
  8. Rhea EM, Leclerc M, Yassine HM, Capuano AW, Tong H, Petyuk VA, Macauley SL, Fioramonti X, Carmichael O, Calon F, and Arvanitakis Z. State of the Science on Brain Insulin Resistance and Cognitive Decline Due to Alzheimer’s Disease. Aging Dis. 2024 Aug 1;15(4):1688-1725. doi: 10.14336/AD.2023.0814. PMID: 37611907; PMCID: PMC11272209.
     
  9. Damuka N, Irmen RE, Krizan I, Miller M, Gollapelli K, Bhoopal B, Deep O, Bansode A, Lockhart SN, Orr ME, Jadiya P, Bashetti N, Kumar JVS, Mintz A, Whitlow CT, Craft S, Macauley SL, Solingapuram Sai KK Exploring microtubule dynamics in Alzheimer's disease: Longitudinal assessment using [11C]MPC-6827 PET imaging in rodent models of Alzheimer’s-related pathology. Alzheimers Dement. 2024 Jul 5. doi: 10.1002/alz.14083. Epub ahead of print. PMID: 38967283.
     
  10. Iacino MC, Stowe TA, Pitts EG, Sexton LL, Macauley SL, Ferris MJ. A unique multi-synaptic mechanism involving acetylcholine and GABA regulates dopamine release in the nucleus accumbens through early adolescence in male rats. Elife. 2024 Jun 11;13:e62999. doi: 10.7554/eLife.62999. PMID: 38860652; PMCID: PMC11281780.
     
  11. Pait MC, Kaye SD, Su Y, Kumar A, Singh S, Gironda SC, Vincent S, Anwar M, Carroll CM, Snipes JA, Lee J, Furdui CM, Deep G, Macauley SL. Novel method for collecting hippocampal interstitial fluid extracellular vesicles (EV-ISF) reveals sex-dependent changes in the microglial EV proteome in response to Aβ pathology. J Extracell Vesicles.2024 Jan;13(1):e12398. doi: 10.1002/jev2.12398. PMID: 38191961; PMCID: PMC10774707.
     
  12. Grizzanti J, Moritz WR, Pait MC, Stanley M, Kaye SD, Carroll CM, Constantino NJ, Deitelzweig LJ, Snipes JA, Kellar D, Caesar EE, Pettit-Mee RJ, Day SM, Sens JP, Nicol NI, Dhillon J, Remedi MS, Kiraly DD, Karch CM, Nichols CG, Holtzman DM, Macauley SL. KATP channels are necessary for glucose-dependent increases inamyloid-β and Alzheimer's disease-related pathology. JCI Insight. 2023 May 2;8(10):e162454. doi: 10.1172/jci.insight.162454. PMID: 37129980; PMCID: PMC10386887.
     
  13. Day SM, Gironda SC, Clarke CW, Snipes JA, Nicol NI, Kamran H, Vaughan W, Weiner JL, Macauley SL. Ethanol exposure alters Alzheimer's-related pathology, behavior, and metabolism in APP/PS1 mice. Neurobiol Dis. 2023 Feb;177:105967. doi: 10.1016/j.nbd.2022.105967. Epub 2022 Dec 16. PMID: 36535550. 
     
  14. Frye BM, Craft S, Laitmer CS, Keene CD, Montine TJ, Register RC, Orr ME, Kavanagh K, Macauley SL, Shively CA. "Aging related Alzheimer's disease-like neuropathology and functional decline in captive vervet monkeys (Chlorocebus aethiops sabaeus). American Journal of Primatology. 2021. In press.
     
  15. Damuka N, Czoty PW, Davis AT, Nader MA, Nader SH, Craft S, Macauley SL, Galbo LK, Epperly PM, Whitlow CT, Davenport AT, Martin TJ, Daunais JB, Mintz A, and Solingapuram Sai KK. PET imaging of [11C]MPC-6827, a microtubule-based radiotracer in non-human primate brains. Molecules. 2020 May 13;25(10):E2289. 
     
  16. Carroll CM and Macauley SL. The interaction between sleep and metabolism in Alzheimer’s disease: cause or consequence of disease? Front Aging Neurosci. 2019 Sep 20;11:258. 
     
  17. Kavanagh K, Day SM, Pait MC, Mortiz WR, Newgard CB, Ilkayeva O, McClain DA, Macauley SL. Type-2-diabetes Alters CSF but not Plasma Metabolomic and AD Risk Profiles in Vervet Monkeys. Front Neurosci. 2019 Aug 28;13:843. 
     
  18. Bashore AC, Liu M, Key CC, Boudyguina E, Wang X, Carroll CM, Sawyer JK, Mullick AE, Lee RG, Macauley SL, Parks JS. Targeted Deletion of Hepatocyte Abca1 Increases Plasma HDL (High-Density Lipoprotein) Reverse Cholesterol Transport via the LDL (Low-Density Lipoprotein) Receptor. Arterioscler Thromb Vasc Biol. 2019 Jun 6;
     
  19. Arnold SE, Arvanitakis Z, Macauley-Rambach SL, Koenig AM, Wang HY, Ahima RS, Craft S, Gandy S, Buettner C, Stoeckel LE, Holtzman DM, Nathan DM. Brain insulin resistance in type 2 diabetes and Alzheimer disease: concepts and conundrums. Nat Rev Neurol. 2018 Mar;14(3):168-181.
     
  20. Ju Y S, Ooms SJ, Sutphen C, Macauley SL, Zangrilli M, Jerome G, Fagan AM, Mignot E, Zempel JM, Claasssen JAHR, and Holtzman DM.  Slow wave sleep disruption increased cerebrospinal fluid amyloid-beta levels.  Brain. 2017 Aug 1;140(8):2104-2111.
     
  21. Stanley M, Macauley SL, Caesar EE, Koscal LJ, Moritz W, Robinson GO, Roh J, Keyser J, Jiang H, and Holtzman DM. The effects of peripheral and central high insulin on brain insulin signaling and amyloid-beta in young and old APP/PS1 mice. J Neurosci. 2016 Nov 16;36(46):11704-11715.
     
  22. Stanley M, Macauley SL, and Holtzman DM. Changes in insulin and insulin signaling in Alzheimer's disease: cause or consequence? J Exp Med. 2016 Jul 25;213(8):1375-85. 
     
  23. Macauley SL.  Combination Therapies for Lysosomal Storage Diseases: A Complex Answer to a Simple Problem. Pediatr Endocrinol Rev. 2016 Jun 13; 1:639-48. 
     
  24. Harris RA, Tindale L, Lone A, Singh O, Macauley SL, Stanley M, Holtzman DM, Bartha R, and Cumming RC.  Aerobic glycolysis in the frontal cortex correlates with memory performance in wild-type mice but not the APP/PS1 mouse model of cerebral amyloidosis. J. Neurosci.  2016 Feb 10;36(6):1871-8.
     
  25. Macauley SL, Stanley M, Caesar EE, Yamada SA, Raichle ME, Perez R, Mahan TE, Sutphen CL, Holtzman DM. Hyperglycemia modulates extracellular amyloid-β concentrations and neuronal activity in vivo. J Clin Invest. 2015 Jun;125(6):2463-7.
PUBMED PUBLICATIONS Macauley Lab Website