Photo of Timo Petteri Piepponen
  • PL 56 (Viikinkaari 5)

    00014

    Finland

19942019
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Publications 1994 2019

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Abnormal behavior, striatal dopamine turnover and opioid peptide gene expression in histamine-deficient mice

Abdurakhmanova, S., Semenova, S., Piepponen, T. P. & Panula, P., 17 Jul 2019, In : Genes, Brain and Behavior. 12 p., 12595.

Research output: Contribution to journalArticleScientificpeer-review

Accumbal µ-opioid receptors modulate ethanol intake in alcohol-preferring Alko Alcohol rats

Uhari-Väänänen, J. K., Raasmaja, A. I., Bäckström, P., Oinio, V., Airavaara, M. T., Piepponen, P. & Kiianmaa, K., Oct 2016, In : Alcoholism: Clinical and Experimental Research. 40, 10, p. 2114-2123 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Accumbal FosB/DeltaFosB immunoreactivity and conditioned place preference in alcohol-preferring AA rats and alcohol-avoiding ANA rats treated repeatedly with cocaine

Marttila, K., Piepponen, P., Kiianmaa, K. & Ahtee, L., 2007, In : Brain Research . 1160, p. 82-90 9 p.

Research output: Contribution to journalArticleScientificpeer-review

AMIGO-Kv2.1 Potassium Channel Complex is Associated With Schizophrenia-Related Phenotypes

Peltola, M. A., Kuja-Panula, J., Liuhanen, J., Voikar, V., Piepponen, P., Hiekkalinna, T., Taira, T., Lauri, S. E., Suvisaari, J., Kulesskaya, N., Paunio, T. & Rauvala, H., 2016, In : Schizophrenia bulletin. 42, 1, p. 191-201 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access

Amphetamine primes enhanced motivation toward uncertain choices in rats with genetic alcohol preference

Oinio, V., Sundström, M., Bäckström, P., Uhari-Väänänen, J., Kiianmaa, K., Raasmaja, A. & Piepponen, P., May 2018, In : Psychopharmacology. 235, 5, p. 1361-1370 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Analysis of acetylcholine and choline in microdialysis samples by liquid chromatography/tandem mass spectrometry

Uutela, P., Reinilä, R., Piepponen, P., Ketola, R. A., Kostiainen, R. & Ketola, R., 2005, In : Rapid Communications in Mass Spectrometry. 19, 20, p. 2950-2956 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Analysis of intact glucuronides and sulfates of serotonin, dopamine, and their phase I metabolites in rat brain microdialysates by liquid chromatography - tandem mass spectrometry

Uutela, P., Reinilä, R., Harju, K., Piepponen, P., Ketola, R. A. & Kostiainen, R., 2009, In : Analytical Chemistry. 81, 20, p. 8417-8425 9 p.

Research output: Contribution to journalArticleScientificpeer-review

A Simple Method for Improving the Spatial Resolution in Infrared Laser Ablation Mass Spectrometry Imaging

Hieta, J-P., Vaikkinen, A., Auno, S., Räikkönen, H., Haapala, M., Scotti, G., Kopra, J., Piepponen, T. & Kauppila, T. J., Jun 2017, In : Journal of the American Society for Mass Spectrometry. 28, 6, p. 1060-1065 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access

Behavioural and neurochemical sensitization of morphine-withdrawn rats to quinpirole

Piepponen, T. P., Katajamaki, J., Kivastik, T., Zharkovsky, A. & Ahtee, L., 1996, In : Pharmacology, Biochemistry and Behavior. 54, p. 787-792 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Cell-autonomous FGF signaling regulates anteroposterior patterning and neuronal differentiation in the mesodiencephalic dopaminergic progenitor domain

Lahti, L. S., Peltopuro, P. P., Piepponen, T. P. & Partanen, J., 2012, In : Development. 139, 5, p. 894-905 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Characterization of the decrease of extracellular striatal dopamine induced by intrastriatal morphine administration

Piepponen, T. P., Mikkola, J. A. V., Ruotsalainen, M., Jonker, D. & Ahtee, L., 1999, In : British Journal of Pharmacology. 127, 1, p. 268-274 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Characterization of the striatal dopaminergic neurotransmission in MEN2B mice with elevated cerebral tissue dopamine

Mijatovic, J., Patrikainen, O., Yavich, L., Airavaara, M., Ahtee, L., Saarma, M. & Piepponen, P., 2008, In : Journal of Neurochemistry. 105, 5, p. 1716-1725 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Characterization of the Structural and Functional Determinants of MANF/CDNF in Drosophila In Vivo Model

Lindström, R., Lindholm, P. K., Kallijärvi, J., Yu, L., Piepponen, T. P., Arumäe, U., Saarma, M. & Heino, T., 2013, In : PLoS One. 8, 9, 12 p., e73928.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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Chronic nicotine modifies the effects of morphine on extracellular striatal dopamine and ventral tegmental GABA

Vihavainen, T., Relander, T., Leiviskä, R., Airavaara, M., Tuominen, R. K., Ahtee, L. & Piepponen, T. P., 2008, In : Journal of Neurochemistry. 107, 3, p. 844-854 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Combination of CDNF and Deep Brain Stimulation Decreases Neurological Deficits in Late-stage Model Parkinson's Disease

Huotarinen, A., Penttinen, A-M., Bäck, S., Voutilainen, M. H., Julku, U., Piepponen, T. P., Männistö, P. T., Saarma, M., Tuominen, R., Laakso, A. & Airavaara, M., 15 Mar 2018, In : Neuroscience. 374, p. 250-263 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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Comparison of different amino acid derivatives and analysis of rat brain microdialysates by liquid chromatography tandem mass spectrometry

Uutela, P., Ketola, R. A., Piepponen, P. & Kostiainen, R., 2009, In : Analytica Chimica Acta. 633, 2, p. 223-231 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Conditioned place preference induced by a combination of L-dopa and a COMT inhibitor, entacapone, in rats

Katajamaki, J., Honkanen, A., Piepponen, T. P., Linden, I. B., Zharkovsky, A. & Ahtee, L., 1998, In : Pharmacology, Biochemistry and Behavior. 60, p. 23-26 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Constitutive Ret signaling is protective for dopaminergic cell bodies but not for axonal terminals

Mijatovic, J., Piltonen, M., Alberton, P., Männistö, P. T., Saarma, M. & Piepponen, T. P., 2011, In : Neurobiology of Aging. 32, 8, p. 1486-1494 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Constitutive Ret signaling leads to long-lasting expression of amphetamine-induced place conditioning via elevation of mesolimbic dopamine

Kopra, J., Villarta-Aguilera, M., Savolainen, M., Weingerl, S., Myohänen, T. T., Rannanpää, S., Salvatore, M. E., Andressoo, J-O. & Piepponen, T. P., Jan 2018, In : Neuropharmacology. 128, p. 221-230 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Dampened Amphetamine-Stimulated Behavior and Altered Dopamine Transporter Function in the Absence of Brain GDNF

Kopra, J. J., Panhelainen, A., af Bjerken, S., Porokuokka, L. L., Varendi, K., Olfat, S., Montonen, H., Piepponen, T. P., Saarma, M. & Andressoo, J-O., 8 Feb 2017, In : Journal of Neuroscience. 37, 6, p. 1581-1590 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access

Determination of Steroids and Their Intact Glucuronide Conjugates in Mouse Brain by Capillary Liquid Chromatography-Tandem Mass Spectrometry

Jantti, S. E., Tammimaki, A., Raattamaa, H., Piepponen, P., Kostiainen, R. & Ketola, R. A., 2010, In : Analytical Chemistry. 82, p. 3168-3175 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Dicer and microRNAs protect adult dopamine neurons

Chmielarz, P., Konovalova, J., Najam, S. S., Alter, H., Piepponen, T. P., Erfle, H., Sonntag, K. C., Schutz, G., Vinnikov, I. A. & Domanskyi, A., 25 May 2017, In : Cell Death and Disease. 8, 5, 9 p., 2813.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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Differences in basal and morphine-induced FosB/Delta FosB and pCREB immunoreactivities in dopaminergic brain regions of alcohol-preferring AA and alcohol-avoiding ANA rats

Kaste, K., Kivinummi, T., Piepponen, T. P., Kiianmaa, K. & Ahtee, L., 2009, In : Pharmacology, Biochemistry and Behavior. 92, p. 655-662 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Discovery of dopamine glucuronide in rat and mouse brain microdialysis samples using liquid chromatography tandem mass spectrometry

Uutela, P. S., Karhu, L., Piepponen, T. P., Käenmäki, M., Ketola, R. & Kostiainen, R., 2009, In : Analytical Chemistry. 2009, 81, p. 427-434

Research output: Contribution to journalArticleScientificpeer-review

Discovery of neurosteroid glucuronides in mouse brain

Kallonen, S., Tammimäki, A., Piepponen, P., Raattamaa, H., Ketola, R. A. & Kostiainen, R., 2009, In : Analytica Chimica Acta. 651, 1, p. 69-74 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Dopaminergic modulation of reward-guided decision making in alcohol-preferring AA rats

Oinio, V., Bäckström, P., Uhari-Väänänen, J., Raasmaja, A., Piepponen, T. & Kiianmaa, K., 30 May 2017, In : Behavioural Brain Research. 326, p. 87-95 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Downregulation of tyrosine hydroxylase phenotype after AAV injection above substantia nigra: Caution in experimental models of Parkinson's disease

Albert, K., Voutilainen, M. H., Domanskyi, A., Piepponen, T. P., Ahola, S., Tuominen, R. K., Richie, C., Harvey, B. K. & Airavaara, M., Mar 2019, In : Journal of Neuroscience Research. 97, 3, p. 346-361 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Effect of morphine on locomotor activity and striatal monoamine metabolism in nicotine-withdrawn mice

Vihavainen, T., Mijatovic, J., Piepponen, T. P., Tuominen, R. K. & Ahtee, L., 2006, In : Behavioural Brain Research. 173, 1, p. 85-93 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Effect of sex and age on brain monoamines and spatial-learning in rats

Tanila, H., Taira, T., Piepponen, T. P. & Honkanen, A., 1994, In : Neurobiology of Aging. 15, p. 733-741 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Effects of ethanol on the accumbal output of dopamine, GABA and glutamate in alcohol-tolerant and alcohol-nontolerant rats

Piepponen, T. P., Kiianmaa, K. & Ahtee, L., 2002, In : Pharmacology, Biochemistry and Behavior. 74, p. 21-30 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Effects of morphine in rats withdrawn from repeated nifedipine administration

Piepponen, T. P., Zharkovsky, A., Kivastik, T. & Ahtee, L., 1999, In : European Journal of Pharmacology. 365, p. 159-164 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Effects of repeated cocaine treatment on striatal dopamine release in alcohol-preferring AA and alcohol-avoiding ANA rats

Mikkola, J. A. V., Honkanen, A., Piepponen, T. P., Kiianmaa, K. & Ahtee, L., 2001, In : Naunyn-Schmiedeberg's Archives of Pharmacology. 363, p. 209-214 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Effects of repeated morphine on cerebral dopamine release and metabolism in AA and ANA rats

Mikkola, J. A. V., Honkanen, A., Piepponen, T. P., Kiianmaa, K. & Ahtee, L., 2000, In : Pharmacology, Biochemistry and Behavior. 67, p. 783-791 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Effects of repeated morphine on locomotion, place preference and dopamine in heterozygous glial cell line-derived neurotrophic factor knockout mice

Airavaara, M., Tuomainen, H., Piepponen, P., Saarma, M. & Ahtee, L., 2007, In : Genes, Brain and Behavior. 6, 3, p. 287-298 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Effects of repeated morphine treatment on metabolism of cerebral dopamine and serotonin in alcohol-preferring AA and alcohol-avoiding ANA rats

Mikkola, J. A. V., Honkanen, A., Piepponen, T. P., Kiianmaa, K. & Ahtee, L., 2001, In : Alcohol and Alcoholism. 36, p. 286-291 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Effects of selective opioid receptor antagonists on morphine-induced changes in striatal and limbic dopamine metabolism

Piepponen, T. P. & Ahtee, L., 1995, In : Pharmacology & Toxicology. 77, p. 204-208 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Enhanced motor activity and brain dopamine turnover in mice during long-term nicotine administration in the drinking water

Gaddnas, H., Pietila, K., Piepponen, P. & Ahtee, L., 2001, In : Pharmacology, Biochemistry and Behavior. 70, p. 497-503 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Evidence for a link between tail biting and central monoamine metabolism in pigs (Sus scrofa domestica)

Valros, A., Palander, P., Heinonen, M., Munsterhjelm, C., Brunberg, E., Keeling, L. & Piepponen, P., 1 May 2015, In : Physiology & Behavior. 143, p. 151-157 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Evidence that DmMANF is an invertebrate neurotrophic factor supporting dopaminergic neurons

Palgi, M., Lindström, R., Peränen, J., Piepponen, P., Saarma, M. & Heino, T. I., 2009, In : Proceedings of the National Academy of Sciences of the United States of America. 106, 7, p. 2429-2434 6 p.

Research output: Contribution to journalArticleScientificpeer-review

GDNF is not required for catecholaminergic neuron survival in vivo

Kopra, J., Vilenius, C., Grealish, S., Härma, M-A., Varendi, K., Lindholm, J., Castrén, E., Voikar, V., Björklund, A., Piepponen, T. P., Saarma, M. & Andressoo, J-O., Mar 2015, In : Nature Neuroscience. 18, 3, p. 319-322 4 p.

Research output: Contribution to journalArticleScientificpeer-review

GDNF Overexpression from the Native Locus Reveals its Role in the Nigrostriatal Dopaminergic System Function

Kumar, A., Kopra, J. J., Varendi, K., Porokuokka, L. L., Panhelainen, A. E., Kuure, S. H., Marshall, P. O. L., Karalija, N., Härma, M-A., Vilenius, C. L., Lilleväli, K., Tekko, T., Mijatovic, J., Pulkkinen, N., Jakobson, M., Jakobson, M., Ola, R., Palm, E., Lindahl, M. S., Strömberg, I. & 4 othersVõikar, V., Piepponen, T. P., Saarma, M. & Andressoo, J-O., 2015, In : PLoS Genetics. 11, 12, 24 p., e1005710.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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High Firing Rate of Neonatal Hippocampal Interneurons Is Caused by Attenuation of Afterhyperpolarizing Potassium Currents by Tonically Active Kainate Receptors

Segerstråle, M., Juuri, J., Lanore, F., Piepponen, T. P., Lauri, S. E., Mulle, C. & Taira, T., 12 May 2010, In : Journal of Neuroscience. 30, 19, p. 6507-6514 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Histamine H3 receptor antagonist decreases cue-induced alcohol reinstatement in mice

Nuutinen, S., Mäki, T., Rozov, S., Bäckström, P., Hyytiä, P., Piepponen, P. & Panula, P., Jul 2016, In : Neuropharmacology. 106, p. 156-163 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Increased extracellular dopamine concentrations and FosB/delta FosB expression in striatal brain areas of heterozygous GDNF knockout mice

Airavaara, M., Planken, A., Gaddnas, H., Piepponen, T. P., Saarma, M. & Ahtee, L., Jul 2004, In : Fundamental & Clinical Pharmacology. 18, p. 55-55 1 p.

Research output: Contribution to journalArticleScientificpeer-review

Increased extracellular dopamine concentrations and FosB/ΔFosB expression in striatal brain areas of heterozygous GDNF knockout mice

Airavaara, M., Planken, A., Gäddnäs, H., Piepponen, T. P., Saarma, M. & Ahtee, L., 2004, In : European Journal of Neuroscience. 20, 9, p. 2336-2344 9 p.

Research output: Contribution to journalArticleScientificpeer-review

In heterozygous GDNF knockout mice the response of striatal dopaminergic system to acute morphine is altered

Airavaara, M., Mijatovic, J., Vihavainen, T., Piepponen, P., Saarma, M. & Ahtee, L., 2006, In : Synapse (New York). 59, 6, p. 321-329 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Involvement of opioid mu(1)-receptors in opioid-induced acceleration of striatal and limbic dopaminergic transmission

Piepponen, T. P., Honkanen, A., Kivastik, T., Zharkovsky, A., Turtia, A., Mikkola, J. A. V. & Ahtee, L., 1999, In : Pharmacology, Biochemistry and Behavior. 63, p. 245-252 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Involvement of opioid mu 1 receptors in morphine-induced conditioned place preference in rats

Piepponen, T. P., Kivastik, T., Katajamaki, J., Zharkovsky, A. & Ahtee, L., 1997, In : Pharmacology, Biochemistry and Behavior. 58, p. 275-279 5 p.

Research output: Contribution to journalArticleScientificpeer-review