Niranjala J.K. Tillakaratne, Ph.D


Member, Brain Research Institute
Researcher, Integrative Biology and Physiology

Contact Information

Work Phone Number: Lab 310 825 8495 Office 310 206 2575
Mailing Address: Dept. of Integrative Biology and PhysiologyUCLA621 Charles E. Young Dr SouthBox 951606Los Angeles, CA 90095UNITED STATES Office Address: 4208 Life Science Building


Duru Paul, Tillakaratne Niranjala, Kim Jung, Zhong Hui, Stauber Stacey, Pham Tran, Xiao Mei Si, Edgerton V. Reggie, Roy Roland.   Spinal neuronal activation during locomotor-like activity enabled by epidural stimulation and 5-hydroxytryptamine agonists in spinal rats, J Neurosci Res, 2015; 93(8): 1229-1239.
Tillakaratne Niranjala J K, Duru Paul, Fujino Hidemi, Zhong Hui, Xiao Mei Si, Edgerton V Reggie, Roy Roland R   Identification of interneurons activated at different inclines during treadmill locomotion in adult rats Journal of neuroscience research, 2014; 92(12): 1714-22.
Shah Prithvi K, Garcia-Alias Guillermo, Choe Jaehoon, Gad Parag, Gerasimenko Yury, Tillakaratne Niranjala, Zhong Hui, Roy Roland R, Edgerton V Reggie   Use of quadrupedal step training to re-engage spinal interneuronal networks and improve locomotor function after spinal cord injury Brain : a journal of neurology, 2013; 136(Pt 11): 3362-77.
Joseph M Selvan, Ying Zhe, Zhuang Yumei, Zhong Hui, Wu Aiguo, Bhatia Harsharan S, Cruz Rusvelda, Tillakaratne Niranjala J K, Roy Roland R, Edgerton V Reggie, Gomez-Pinilla Fernando   Effects of diet and/or exercise in enhancing spinal cord sensorimotor learning PloS one, 2012; 7(7): e41288.
Joseph M Selvan, Bilousova Tina, Zdunowski Sharon, Wu Zhongqi-Phyllis, Middleton Blake, Boudzinskaia Maia, Wong Bonnie, Ali Noore, Zhong Hui, Yong Jing, Washburn Lorraine, Escande-Beillard Nathalie, Dang Hoa, Edgerton V Reggie, Tillakaratne Niranjala J K, Kaufman Daniel L   Transgenic mice with enhanced neuronal major histocompatibility complex class I expression recover locomotor function better after spinal cord injury Journal of neuroscience research, 2011; 89(3): 365-72.
Tillakaratne NJ, Guu JJ, de Leon RD, Bigbee AJ, London NJ, Zhong H, Ziegler M,Joynes R, Roy RR, Edgerton VR.   Functional recovery of stepping in rats after a complete neonatal spinal cord transection is not due to regrowth across the lesion site , Neuroscience, 2010; 166: 23-33.
Khristy W, Ali NJ, Bravo AB, de Leon R, Roy RR, Zhong H, London NJ, Edgerton VR, Tillakaratne NJ   Changes in GABA(A) receptor subunit gamma 2 in extensor and flexor motoneurons and astrocytes after spinal cord transection and motor training, Brain Res, 2009; 1273: 9-17.
Otoshi CK, Walwyn WM, Tillakaratne NJ, Zhong H, Roy RR, Edgerton VR   Distribution and localization of 5-HT(1A) receptors in the rat lumbar spinal cord after transection and deafferentation, J Neurotrauma, 2009; 26: 575-84.
Jindrich DL, Joseph MS, Otoshi CK, Wei RY, Zhong H, Roy RR, Tillakaratne NJ,Edgerton VR   Spinal learning in the adult mouse using the Horridge paradigm, J Neurosci Methods, , 2009; 182(2): 250-4.
Edgerton VR, Courtine G, Gerasimenko YP, Lavrov I, Ichiyama RM, Fong AJ, Cai LL, Otoshi CK, Tillakaratne NJ, Burdick JW, Roy RR   Training locomotor networks, Brain Res Rev, 2008; 57: 241-54 (Review).
Bigbee AJ, Crown ED, Ferguson AR, Roy RR, Tillakaratne NJ, Grau JW, Edgerton VR   Two chronic motor training paradigms differentially influence acute, Behav Brain Res, 2007; 180: 95-101.
Ahn, SN Guu, JJ Tobin, AJ Edgerton, VR Tillakaratne, NJ   Use of c-fos to identify activity-dependent spinal neurons after stepping in intact adult rats Spinal Cord, 2006; 44: 547-59.
Zanjani H, Lemaigre-Dubreuil Y, Tillakaratne NJK, Blokhin A, McMahon RP, Tobin AJ and Vogel MW.   Cerebellar Purkinje cell loss in aging Hu-Bcl2 transgenic mice, J Comp Neurol, 2004; 475: 481-92.
Edgerton VR, Tillakaratne NJK, Bigbee AJ, de Leon RD, and Roy RR   Locomotor recovery potential after spinal cord injury, Neuro-behavioral determinants of interlimb coordination, edited by Swinnen S. & P Duysens J, 2004; .
Edgerton, VR Tillakaratne, NJ Bigbee, AJ de Leon, RD Roy, RR   Plasticity of the spinal neural circuitry after injury Annual review of neuroscience. , 2004; 27: 145-67.
Hoang, TX Nieto, JH Tillakaratne, NJ Havton, LA   Autonomic and motor neuron death is progressive and parallel in a lumbosacral ventral root avulsion model of cauda equina injury The Journal of comparative neurology. , 2003; 467(4): 477-86.
Mackie, M Hughes, DI Maxwell, DJ Tillakaratne, NJ Todd, AJ   Distribution and colocalisation of glutamate decarboxylase isoforms in the rat spinal cord Neuroscience. , 2003; 119(2): 461-72.
Tillakaratne, NJ de Leon, RD Hoang, TX Roy, RR Edgerton, VR Tobin, AJ   Use-dependent modulation of inhibitory capacity in the feline lumbar spinal cord The Journal of neuroscience, 2002; 22(8): 3130-43.
Edgerton, VR Leon, RD Harkema, SJ Hodgson, JA London, N Reinkensmeyer, DJ Roy, RR Talmadge, RJ Tillakaratne, NJ Timoszyk, W Tobin, A   Retraining the injured spinal cord The Journal of physiology. , 2001; 533(Pt 1): 15-22.
Tillakaratne, NJ Mouria, M Ziv, NB Roy, RR Edgerton, VR Tobin, AJ   Increased expression of glutamate decarboxylase (GAD(67)) in feline lumbar spinal cord after complete thoracic spinal cord transection Journal of neuroscience research. , 2000; 60(2): 219-30.
Banerjee, PK Tillakaratne, NJ Brailowsky, S Olsen, RW Tobin, AJ Snead, OC   Alterations in GABAA receptor alpha 1 and alpha 4 subunit mRNA levels in thalamic relay nuclei following absence-like seizures in rats Experimental neurology. , 1998; 154(1): 213-23.
Banerjee PK, Olsen RW, Tillakaratne NJK, Brailowsky S, Tobin AJ, and Snead OC, 3rd.   Absence seizures decrease steroid modulation of t-[35S]butylbicyclophosphorothionate binding in thalamic relay nuclei, J Pharmacol Exp Ther, 1998; 287: 766-772.
Edgerton VR, Roy RR, de Leon RD, Tillakaratne NJK, and Hodgson JA.   Does motor learning occur in spinal cord?, The neuroscientist, 1997; 3: 287-294.
Edgerton, VR de Leon, RD Tillakaratne, N Recktenwald, MR Hodgson, JA Roy, RR   Use-dependent plasticity in spinal stepping and standing Advances in neurology. , 1997; 72: 233-47.
Mahmoudi M, Kang M H, Tillakaratne N, Tobin A J, Olsen R W   Chronic intermittent ethanol treatment in rats increases GABA(A) receptor alpha4-subunit expression: possible relevance to alcohol dependence Journal of neurochemistry, 1997; 68(6): 2485-92.
Tillakaratne N J, Medina-Kauwe L, Gibson K M   gamma-Aminobutyric acid (GABA) metabolism in mammalian neural and nonneural tissues Comparative biochemistry and physiology. Part A, Physiology, 1995; 112(2): 247-63.
Segovia J, Lawless G M, Tillakaratne N J, Brenner M, Tobin A J   Cyclic AMP decreases the expression of a neuronal marker (GAD67) and increases the expression of an astroglial marker (GFAP) in C6 cells Journal of neurochemistry, 1994; 63(4): 1218-25.
Hendrickson A E, Tillakaratne N J, Mehra R D, Esclapez M, Erickson A, Vician L, Tobin A J   Differential localization of two glutamic acid decarboxylases (GAD65 and GAD67) in adult monkey visual cortex The Journal of comparative neurology, 1994; 343(4): 566-81.
Medina-Kauwe L K, Tillakaratne N J, Wu J Y, Tobin A J   A rat brain cDNA encodes enzymatically active GABA transaminase and provides a molecular probe for GABA-catabolizing cells Journal of neurochemistry, 1994; 62(4): 1267-75.
Esclapez M, Tillakaratne N J, Kaufman D L, Tobin A J, Houser C R   Comparative localization of two forms of glutamic acid decarboxylase and their mRNAs in rat brain supports the concept of functional differences between the forms The Journal of neuroscience : the official journal of the Society for Neuroscience, 1994; 14(3 Pt 2): 1834-55.
Esclapez M, Tillakaratne N J, Tobin A J, Houser C R   Comparative localization of mRNAs encoding two forms of glutamic acid decarboxylase with nonradioactive in situ hybridization methods The Journal of comparative neurology, 1993; 331(3): 339-62.
Greif K F, Tillakaratne N J, Erlander M G, Feldblum S, Tobin A J   Transient increase in expression of a glutamate decarboxylase (GAD) mRNA during the postnatal development of the rat striatum Developmental biology, 1992; 153(1): 158-64.
Kasckow J W, Tillakaratne N J, Kim H, Strecker G J, Tobin A J, Olsen R W   Expression of GABAA receptor polypeptides in clonal rat cell lines Brain research, 1992; 581(1): 143-7.
Bu D F, Erlander M G, Hitz B C, Tillakaratne N J, Kaufman D L, Wagner-McPherson C B, Evans G A, Tobin A J   Two human glutamate decarboxylases, 65-kDa GAD and 67-kDa GAD, are each encoded by a single gene Proceedings of the National Academy of Sciences of the United States of America, 1992; 89(6): 2115-9.
Tillakaratne N J, Erlander M G, Collard M W, Greif K F, Tobin A J   Glutamate decarboxylases in nonneural cells of rat testis and oviduct: differential expression of GAD65 and GAD67 Journal of neurochemistry, 1992; 58(2): 618-27.
Erlander M G, Tillakaratne N J, Feldblum S, Patel N, Tobin A J   Two genes encode distinct glutamate decarboxylases Neuron, 1991; 7(1): 91-100.
Khrestchatisky M, MacLennan A J, Tillakaratne N J, Chiang M Y, Tobin A J   Sequence and regional distribution of the mRNA encoding the alpha 2 polypeptide of rat gamma-aminobutyric acidA receptors Journal of neurochemistry, 1991; 56(5): 1717-22.
MacLennan A J, Brecha N, Khrestchatisky M, Sternini C, Tillakaratne N J, Chiang M Y, Anderson K, Lai M, Tobin A J   Independent cellular and ontogenetic expression of mRNAs encoding three alpha polypeptides of the rat GABAA receptor Neuroscience, 1991; 43(2-3): 369-80.
Greif K F, Erlander M G, Tillakaratne N J, Tobin A J   Postnatal expression of glutamate decarboxylases in developing rat cerebellum Neurochemical research, 1991; 16(3): 235-42.
Tobin A J, Khrestchatisky M, MacLennan A J, Chiang M Y, Tillakaratne N J, Xu W T, Jackson M B, Brecha N, Sternini C, Olsen R W   Structural, developmental and functional heterogeneity of rat GABAA receptors Advances in experimental medicine and biology, 1991; 287(3): 365-74.
John Maclennan A, Frantz G D, Weatherwax R C, Tillakaratne N J, Tobin A J   Expression of mRNAs that encode D2 dopamine receptor subtypes: Anatomical, developmental, and pharmacological studies Molecular and cellular neurosciences, 1990; 1(2): 151-60.
Segovia J, Tillakaratne N J, Whelan K, Tobin A J, Gale K   Parallel increases in striatal glutamic acid decarboxylase activity and mRNA levels in rats with lesions of the nigrostriatal pathway Brain research, 1990; 529(1-2): 345-8.
Kim Y S, Thomas J W, Tillakaratne N J, Montpied P, Suzdak P D, Banner C, Ginns E, Tobin A J, Paul S M   Glutamic acid decarboxylase mRNA in rat brain: regional distribution and effects of intrastriatal kainic acid Brain research, 1987; 427(1): 77-82.