Nirmala Nirinjini Naidoo
Nirmala Nirinjini Naidoo, Ph.D.
125 South 31st Street, Suite 2100
Philadelphia, PA 19104-3403
Fax: 2156-746-4814
naidoo@mail.med.upenn.edu
B.S. (Biochemistry and Microbiology)
University of Durban-Westville, South Africa, 1982.
B.S. (Biochemistry, Honors)
University of Durban-Westville, South Africa, 1984.
M.S. (Biochemistry)
University of Durban-Westville, South Africa Dissertation: An Investigation of the Preparation and Interaction of Glycoprotein-DNA Conjugates with Eukaryotic Cell Receptors, 1986.
Ph.D. (Chemistry)
University of Pennsylvania Dissertation: Structure-Function Studies on Alpha-1-Antichymotrypsin, 1994.
Description of Research Expertise
Dr. Naidoo’s research focuses on the molecular mechanisms of sleep regulation. She uses both the mouse and Drosophila models in her studies using biochemical and proteomic approaches to study the cellular responses to sleep deprivation. She has established that the endoplasmic reticulum is a critical sensor of perturbations that result from sleep deprivation and that a cellular protective pathway, the unfolded protein response, is induced when mice or Drosophila are sleep deprived. In addition, Dr. Naidoo is studying age-related changes in cellular protective pathways in response to sleep deprivation. Recently completed studies suggest that inadequate sleep in the elderly, who normally experience sleep disturbances, leads to an impaired cellular protective response that may in turn lead to further sleep disturbances beginning a vicious cycle of sleep loss and cellular damage. Current studies are exploring the mechanisms by which this may occur. She is also studying the role of the synaptic scaffolding protein, Homer, in sleep-wake behavior.Selected Publications
Brown M, Naidoo N: The UPR and the anti-oxidant response: role in sleep. Molecular Neurobiology 2010 Notes: In press; Invited review; Mar 17. [Epub ahead of print]Grandner MA, Kripke DF, Naidoo N, Langer RD : Relationships among dietary nutrients and subjective sleep, objective sleep and napping in women. Sleep Medicine 11(2): 180-184, 2010.
Nikonova EV, Naidoo N*, Zhang L, Romer M, Cater JR, Scharf MT, Galante RJ, Pack AI* (*co-senior authors): Changes in components of energy regulation in mouse cortex with increases in wakefulness. Sleep 33(7): 889-900, 2010.
Naidoo N: Cellular stress/the unfolded protein response: relevance to sleep and sleep disorders. Sleep Medicine Reviews 13(3): 195-204, 2009 Notes: Invited review.
Naidoo N: ER and Aging: Protein Folding and the ER Stress Response. Ageing Research Reviews, Special Edition: Organellar Aging 8(3): 150-159, 2009 Notes: Invited review.
Naidoo N: The ER stress response and aging. Reviews in the Neurosciences 20(1): 23-37, 2009 Notes: Invited review.
Naidoo N: Sleep deprivation, aging and cellular stress. Frontiers in Neuroscience 3(3), 2009.
Aton SJ, Seibt J, Dumoulin M, Jha SK, Steinmetz N, Coleman T, Naidoo N, Frank MG: Mechanisms of sleep-dependent consolidation of cortical plasticity. Neuron 61(3): 454-466, 2009.
Zimmerman J, Naidoo N, Raizen D, Pack A: Conservation of sleep: insights from model systems. Trends in Neuroscience 31(7): 371-376, 2008.
Naidoo N, Ferber M, Master M, Zhu Y, Pack AI: Aging impairs the unfolded protein response to sleep deprivation and leads to proapoptotic signaling. Journal of Neuroscience 28(26): 6539-6548, 2008 Notes: Selected as Manuscript of the Week in this journal.
Mackiewicz M, Naidoo N, Zimmerman J, Pack A: Molecular mechanisms of sleep and wakefulness. Annals of the New York Academy of Sciences 1129: 335-349, 2008.
Zhu Y, Fenik P, Zhan G, Sanfillipo-Cohn B, Naidoo N, Veasey, SC: eIF-2a protects brainstem montoneurons in a murine model of sleep apnea. Journal of Neuroscience 28(9): 2168-2178, 2008.
Mackiewicz M, Paigen B, Naidoo N, Pack AI: Analysis of the QTL for sleep homeostasis in mice: Homer1a is a likely candidate. Physiological Genomics 33(1): 91-99, 2008.
Scharf MT, Mackiewicz M, Naidoo N, O'Callaghan JP, Pack AI: AMP-activated protein kinase phosphorylation in brain is dependent on method of sacrifice and tissue preparation. Journal of Neurochemistry 103(3): 833-841, 2008.
Naidoo N, Casiano V, Cater J, Zimmerman J, and Pack AI: A role for the molecular chaperone protein BiP/GRP78 in Drosophila sleep homeostasis. Sleep 30(5): 557-565, 2007.
Mackiewicz M, Shockley KR, Romer MA, Galante RJ, Zimmerman JE, Naidoo N, Baldwin DA, Jensen ST, Churchill GA, and Pack AI: Macromolecule biosynthesis - a key function of sleep. Physiological Genomics 31(3): 441-457, 2007.
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