Taneli Raivio, Principal Investigator, 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 a pediatric endocrinologist, Niilo Hallman professor of translational pediatrics at the University of Helsinki, chief of research and education at the Pediatric Research Center and the Helsinki University Central Hospital, Finland. He is a member of several international scientific societies, and an editor in the European Journal of Endocrinology.  

Biomedicum 1/Physiology,
Haartmaninkatu 8,
P.O.Box 63, 00014 University of Helsinki
E-mail: taneli.raivio(a)helsinki.fi

Pediatric Research Center


Matti Hero, 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, Postdoctoral Fellow, BBA, PhD

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 and is involved in several research projects.


Tero Varimo, MD, PhD

Tero started in the group in 2012, and defended his thesis "Delayed puberty: etiology, outcome and interactions with growth" in 2017. His current research focuses on precocious and delayed puberty.


Yafei Wang, PhD

Yafei started to work as a postdoctoral fellow in November 2018.


Venkatram Yellapragada, MSc, PhD student

Venkatram has a Master's degree in molecular biotechnology, and he is presently carrying out doctoral studies in dissecting molecular mechanisms and key players involved in human hypothalamic cell development and function.


Kristiina Kumar, MSc, PhD student

Kristiina joined the group in 2014. She is working on genome editing and differentiation of hPSCs.


Laura Kariola, MSc (Economics), CEMS Master's degree in Management, MD

Laura received her MD degree at the University of Helsinki in 2014. She joined the group in November, 2016. Laura specializes in Pediatrics and works on her PhD thesis on the regulation of puberty timing. 


Annika Tarkkanen, MA

Annika has completed her Master’s degree in English language. She started working in the group in January, 2016. Besides contributing to the research projects, her duties include language editing and proofreading.


Johanna Hietamäki, MB, MSc

Johanna is a medical student at the University of Helsinki, and she has been a member of the group since 2016. Her research focuses on childhood onset hypopituitarism.


Anna-Pauliina Iivonen, MSc

Anna-Pauliina joined the group in 2016, and she is currently working on her PhD thesis.


Ella Kohva, MD, PhD student

Ella graduated from the University of Helsinki as an MD in 2015, and is now a doctor in training in pediatrics. She finished her Lic. Med. thesis in Raivio Group in 2015, and is currently working with her PhD thesis.


Nazli Eskici, MSc, PhD Student

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, MSc, PhD student

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.