Semi Helin - UTU Research Portal - UTU Research Portal

Semi Helin

- Doctoral Researcher,
Imaging and Clinical Diagnostics (Department of Clinical Medicine)
- Senior Researcher,
Turku PET Centre (Independent units)

semhel@utu.fi

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Adenosine A2A receptor availability in patients with early- and moderate-stage Parkinson’s disease (2023)
- Journal of Neurology
Waggan Imran, Rissanen Eero, Tuisku Jouni, Joutsa Juho, Helin Semi, Parkkola Riitta, Rinne Juha O, Airas Laura
APOE ε4 gene dose effect on imaging and blood biomarkers of neuroinflammation and beta-amyloid in cognitively unimpaired elderly (2023)
- Alzheimer's Research and TherapyInternational Journal of Obesity
Snellman Anniina, Ekblad Laura L., Tuisku Jouni, Koivumäki Mikko, Ashton Nicholas J., Lantero-Rodriguez Juan, Karikari Thomas K., Helin Semi, Bucci Marco, Löyttyniemi Eliisa, Parkkola Riitta, Karrasch Mira, Schöll Michael, Zetterberg Henrik, Blennow Kaj, Rinne Juha O.
Endogenous Opioid Release After Orgasm in Man: A Combined PET/Functional MRI StudyAssociation of Early β-Amyloid Accumulation and Neuroinflammation Measured With [11C]PBR28 in Elderly Individuals Without Dementia (2023)
- Journal of Nuclear MedicineNeurology
Jern Patrick, Chen Jinglu, Tuisku Jouni, Saanijoki Tiina, Hirvonen Jussi, Lukkarinen Lasse, Manninen Sandra, Helin Semi, Putkinen Vesa, Nummenmaa Lauri
Head-to-head comparison of plasma p-tau181, p-tau231 and glial fibrillary acidic protein in clinically unimpaired elderly with three levels of APOE4-related risk for Alzheimer's disease (2023)
- Neurobiology of Disease
Snellman Anniina, Ekblad Laura L., Ashton Nicholas J., Karikari Thomas K., Lantero-Rodriguez Juan, Pietilä Elina, Koivumäki Mikko, Helin Semi, Karrasch Mira, Zetterberg Henrik, Blennow Kaj, Rinne Juha O.
Insulin resistance and body mass index are associated with TSPO PET in cognitively unimpaired elderly (2023)
- Journal of Cerebral Blood Flow and Metabolism
Ekblad Laura L, Tuisku Jouni, Koivumäki Mikko, Helin Semi, Rinne Juha O, Snellman Anniina
Direct Comparison of [18F]F-DPA with [18F]DPA-714 and [11C]PBR28 for Neuroinflammation Imaging in the same Alzheimer’s Disease Model Mice and Healthy Controls (2022)
- Molecular Imaging and Biology
López-Picón Francisco R, Keller Thomas, Bocancea Diana, Helin Jatta S, Krzyczmonik Anna, Helin Semi, Damont Annelaure, Dollé Frédéric, Rinne Juha O, Haaparanta-Solin Merja, Solin Olof
Obesity risk is associated with altered cerebral glucose metabolism and decreased μ-opioid and CB1 receptor availability (2022)
Kantonen Tatu, Pekkarinen Laura, Karjalainen Tomi, Bucci Marco, Kalliokoski Kari, Haaparanta-Solin Merja, Aarnio Richard, Dickens Alex M., von Eyken Annie, Laitinen Kirsi, Houttu Noora, Kirjavainen Anna K., Helin Semi, Hirvonen Jussi, Rönnemaa Tapani, Nuutila Pirjo, Nummenmaa Lauri
(2021)
Toppala Sini, Ekblad Laura L., Tuisku Jouni, Helin Semi, Johansson Jarkko J., Laine Hanna, Löyttyniemi Eliisa, Marjamäki Päivi, Blennow Kaj, Zetterberg Henrik, Jula Antti, Viitanen Matti, Rinne Juha O.
Comparison of: (2S,4R)-4-[F-18]Fluoroglutamine, [C-11]Methionine, and 2-Deoxy-2-[F-18]Fluoro-D-Glucose and Two Small-Animal PET/CT Systems Imaging Rat Gliomas (2021)
- Frontiers in Oncology
Miner Maxwell WG, Liljenbäck Heidi, Virta Jenni, Helin Semi, Eskola Olli, Elo Petri, Teuho Jarmo, Seppälä Kerttu, Oikonen Vesa, Yang Guangli, Kindler-Röhrborn Andrea, Minn Heikki, Li Xiang-Guo, Roivainen Anne
Effect of dopaminergic medication on adenosine 2A receptor availability in patients with Parkinson's disease (2021)
- Parkinsonism and Related Disorders
Waggan Imran, Rissanen Eero, Tuisku Jouni, Matilainen Markus, Helin Semi, Parkkola Riitta, Rinne Juha O., Airas Laura