Group members

Taneli Raivio, Principal Investigator, HUS Research Director, Professor, MD, PhD 

Taneli Raivio received his MD and PhD degrees at the University of Helsinki, Finland. He did his foreign postdoctoral training in the USA (Harvard Reproductive Endocrine Sciences Center, MA). He is the Niilo Hallman Professor of Translational Pediatrics in the Faculty of Medicine, University of Helsinki; and a pediatrician and a pediatric endocrinologist. He was appointed as HUS research director in May 2022.



Stem Cells and Metabolism Research Program,

Research Programs Unit,

Faculty of Medicine

University of Helsinki

E-mail: taneli.raivio(a)helsinki.fi

Taneli's Research Portal profile→

Pediatric Research Center →

Matti Hero, Senior Clinical Researcher, MD, PhD

Matti Hero, MD, PhD, works as a pediatric endocrinologist and adjunct professor at the Children's Hospital, Helsinki University Central Hospital, Finland. His clinical research has focused on disorders affecting growth and puberty, with particular interest in the efficacy and safety of aromatase inhibitor treatment in boys with short stature or delayed puberty.  

Kirsi Vaaralahti, Laboratory Coordinator, PhD, BBA

Kirsi joined Raivio group in 2009. She defended her thesis "Molecular genetics of Kallmann Syndrome and Constitutional delay of growth and puberty in Finland" in 2014. After that, she has been working as a postdoctoral fellow/laboratory coordinator and is involved in several research projects.

Tero Varimo, Postdoctoral Fellow, MD, PhD

Tero started in the group in 2012, and defended his thesis "Delayed puberty: etiology, outcome and interactions with growth" in 2017. He is a clinical researcher at the University of Helsinki and his current research focuses on precocious and delayed puberty. Tero received the ESPE Young Investigator Award in 2019.

Kristiina Kumar, Postdoctoral Fellow, PhD

Kristiina joined the group in 2014. She is working as a post-doc with genome editing and differentiation of hPSCs. She defended her Phd thesis "Modeling molecular and cellular mechanisms of delayed puberty" in early 2025.

Nazli Eskici, PhD student, MSc

Nazli received her M.Sc. in Medical Biology from Hacettepe University, Ankara, Turkey and joined the group in 2018. She is interested in the development and function of hypothalamic GHRH neurons using both genetically engineered human pluripotent stem cells and knock-in mice as models.

Shrinidhi Madhusudan, PhD student, MSc

Nidhi received her master’s in Neuroscience from GSN-LMU in Munich, Germany and joined the group in 2020. Her doctoral dissertation is mainly focused on GnRH neuron ontogeny and candidate genes involved in the developmental process.

Celia received her M.Sc. in Genetics and Molecular Biosciences from the University of Helsinki, and joined the group in 2021. Her doctoral dissertation focuses on hypothalamic neuron differentiation from stem cells.