Semi Helin


Senior Researcher, PET Basic Operations (Turku PET Centre)
Doctoral Student, Clinical Physiology and Nuclear Medicine (Department of Clinical Medicine)

semhel@utu.fi







Publications
Go to first page Go to previous page 1 of 2 Go to next page Go to last page

Brain beta-Amyloid and Atrophy in Individuals at Increased Risk of Cognitive Decline (2019)
American Journal of Neuroradiology
European Journal of Nuclear Medicine and Molecular Imaging
Martikainen IK, Kemppainen N, Johansson J, Teuho J, Helin S, Liu Y, Helisalmi S, Soininen H, Parkkola R, Ngandu T, Kivipelto M, Rinne JO
(
A1 Journal article – refereed)

Intranasal naloxone rapidly occupies brain mu-opioid receptors in human subjects (2019)
Neuropsychopharmacology
Jarkko Johansson, Jussi Hirvonen, Zsófia Lovró, Laura Ekblad, Valtteri Kaasinen, Olli Rajasilta, Semi Helin, Jouni Tuisku, Saija Sirén, Mirka Pennanen, Arvind Agrawal, Roger Crystal, Petri J. Vainio, Hannu Alho, Mika Scheinin
(
A1 Journal article – refereed)

Regulation of human brown adipose tissue by adenosine and A2A receptors – studies with [15O]H2O and [11C]TMSX PET/CT (2019)
Minna Lahesmaa, Vesa Oikonen, Semi Helin, Pauliina Luoto, Mueez U Din, Alexander Pfeifer, Pirjo Nuutila, Kirsi A. Virtanen
(
A1 Journal article – refereed)

Binge eating disorder and morbid obesity are associated with lowered mu-opioid receptor availability in the brain (2018)
Psychiatry Research: Neuroimaging
Juho Joutsa, Henry K. Karlsson, Joonas Majuri,, Pirjo Nuutila, Semi Helin, Valtteri Kaasinen, Lauri Nummenmaa
(
A1 Journal article – refereed)

Correction to: Regulation of human brown adipose tissue by adenosine and A2A receptors – studies with [15O]H2O and [11C]TMSX PET/CT (2018)
European Journal of Nuclear Medicine and Molecular Imaging
Minna Lahesmaa, Vesa Oikonen, Semi Helin, Pauliina Luoto, Mueez U Din, Alexander Pfeifer, Pirjo Nuutila, Kirsi A. Virtanen
(
O2 Other)

Midlife insulin resistance, APOE genotype, and late-life brain amyloid accumulation (2018)
Neurology
Ekblad LL, Johansson J, Helin S, Viitanen M, Laine H, Puukka P, Jula A, Rinne JO
(
A1 Journal article – refereed)

Neuroinflammation appears early and then plateaus in a mouse model of Alzheimer's disease shown by PET imaging (2018) Francisco R. López-Picón, Anniina Snellman, Olli Eskola, Semi Helin, Olof Solin, Merja Haaparanta-Solin, Juha O. Rinne
(
A1 Journal article – refereed)

S-[F-18] THK-5117-PET and [C-11] PIB-PET Imaging in Idiopathic Normal Pressure Hydrocephalus in Relation to Confirmed Amyloid-beta Plaques and Tau in Brain Biopsies (2018)
Journal of Alzheimer's Disease
Leinonen V, Rauramaa T, Johansson J, Bottelbergs A, Tesseur I, van der Ark P, Pemberton D, Koivisto AM, Jääskeläinen JE, Hiltunen M, Herukka SK, Blennow K, Zetterberg H, Jokinen P, Rokka J, Heliu S, Haaparanta-Solin M, Solin O, Okamura N, Kolb HC, Rinne JO
(
A1 Journal article – refereed)

Applicability of [C-11]PIB micro-PET imaging for in vivo follow-up of anti-amyloid treatment effects in APP23 mouse model (2017)
Neurobiology of Aging
Snellman A, Rokka J, Lopez-Picon FR, Helin S, Re F, Löyttyniemi E, Pihlaja R, Forloni G, Salmona M, Masserini M, Solin O, Rinne JO, Haaparanta-Solin M
(
A1 Journal article – refereed)

Brain glucose metabolism and its relation to amyloid load in middle-aged adults with childhood-onset epilepsy (2017)
Epilepsy Research
Juho Joutsa, Juha O. Rinne, Mira Karrasch, Bruce Hermann, Jarkko Johansson, Anu Anttinen, Olli Eskola, Semi Helin, Shlomo Shinnar, Matti Sillanpää; TACOE study group
(
A1 Journal article – refereed)

Feeding Releases Endogenous Opioids in Humans (2017)
Journal of Neuroscience
Tuulari JJ, Tuominen L, de Boer FE, Hirvonen J, Helin S, Nuutila P, Nummenmaa L
(
A1 Journal article – refereed)

Neurotransmitters behind pain relief with transcranial magnetic stimulation - positron emission tomography evidence for release of endogenous opioids (2017)
European Journal of Pain
Lamusuo S, Hirvonen J, Lindholm P, Martikainen IK, Hagelberg N, Parkkola R, Taiminen T, Hietala J, Helin S, Virtanen A, Pertovaara A, Jaaskelainen SK
(
A1 Journal article – refereed)

Bariatric surgery normalizes brain opioid receptors (2016)
Molecular Psychiatry
Karlsson HK, Tuulari JJ, Tuominen L, Hirvonen J, Honka H, Parkkola R, Helin S, Salminen P, Nuutila P, Nummenmaa L
(
O2 Other)

Weight loss after bariatric surgery normalizes brain opioid receptors in morbid obesity (2016)
Molecular Psychiatry
Karlsson HK, Tuulari JJ, Tuominen L, Hirvonen J, Honka H, Parkkola R, Helin S, Salminen P, Nuutila P, Nummenmaa L
(
A1 Journal article – refereed)

Aberrant mesolimbic dopamine-opiate interaction in obesity (2015)
NeuroImage
Tuominen L, Tuulari J, Karlsson H, Hirvonen J, Helin S, Salminen P, Parkkola R, Hietala J, Nuutila P, Nummenmaa L
(
A1 Journal article – refereed)

Effect of the myeloperoxidase inhibitor AZD3241 on microglia: a PET study in Parkinson's disease (2015)
Brain
Jucaite A, Svenningsson P, Rinne JO, Cselenyi Z, Varnas K, Johnstrom P, Amini N, Kirjavainen A, Helin S, Minkwitz M, Kugler AR, Posener JA, Budd S, Halldin C, Varrone A, Farde L
(
A1 Journal article – refereed)

Lihavuus on yhteydessä opioidijärjestelmän muutokseen (2015)
Duodecim
Karlsson Henry K, Tuominen Lauri, Tuulari Jetro J, Hirvonen Jussi, Parkkola Riitta, Helin Semi, Salminen Paulina, Nuutila Pirjo, Nummenmaa Lauri
(
O2 Other)

Obesity Is Associated with Decreased mu-Opioid But Unaltered Dopamine D-2 Receptor Availability in the Brain (2015)
Journal of Neuroscience
Karlsson HK, Tuominen L, Tuulari JJ, Hirvonen J, Parkkola R, Helin S, Salminen P, Nuutila P, Nummenmaa L
(
A1 Journal article – refereed)

Test-retest reliability of (11)C-ORM-13070 in PET imaging of α2C-adrenoceptors in vivo in the human brain (2015)
European Journal of Nuclear Medicine and Molecular Imaging
Jussi Lehto, Jere R. Virta, Vesa Oikonen, Anne Roivainen, Pauliina Luoto, Eveliina Arponen, Semi Helin, Johanna Hietamäki, Aila Holopainen, Marita Kailajärvi, Juha M. Peltonen, Juha Rouru, Jukka Sallinen, Kirsi Virtanen, Iina Volanen, Mika Scheinin, Juha O. Rinne
(
A1 Journal article – refereed)

¹¹C-ORM-13070, a novel PET ligand for brain α₂C-adrenoceptors: radiometabolism, plasma pharmacokinetics, whole-body distribution and radiation dosimetry in healthy men. (2014)
European Journal of Nuclear Medicine and Molecular Imaging
Luoto P, Suilamo S, Oikonen V, Arponen E, Helin S, Herttuainen J, Hietamäki J, Holopainen A, Kailajärvi M, Peltonen JM, Rouru J, Sallinen J, Scheinin M, Virta J, Virtanen K, Volanen I, Roivainen A, Rinne JO
(
A1 Journal article – refereed)


Last updated on 2017-17-11 at 05:59