Hyung jin Choi, Professor

Hyung Jin Choi received bachelor on Medicine, master on Internal Medicine and doctoral degree on Molecular and Genomics at Seoul National University College of Medicine. He did his Internal Medicine residency training and Endocrinology fellowship training at Seoul National University Hospital. From 2012 to 2015, he worked as a researcher, clinician and educator at Department of Endocrinology at Chungbuk National University Hospital. From 2015, he is focusing his research on obesity and appetite using mouse model, non-human primate model and human clinical trials as a assistant/associate professor in Department of Biomedical Sciences/Anatomy and Cell Biology. 

* hjchoi@snu.ac.kr

Minjung Park, lab manager

Minjung Park is the lab manager at the FNMR lab

* juli21@snu.ac.kr

Younghee Lee, Graduate student

Younghee received her bachelor’s in Biology at EWha Womans University. She has an interest in the neural mechanism of food wanting and dopamine dynamics. To studying correlations between eating behavior and neuronal activity in rodent and non-human primates, she primarily used fiber photometry, optogenetics, chemogenetics and mico-endoscope. She presented her posters in SfN (Society for Neuroscience) , SSIB (Society for the Study of Ingestive Behavior) and  Keystone symposia. She also received best oral presentation/ poster awards in APICA (Asia Pacific International Congress of Anatomists), KSBNS (Annual Meeting of the Korea Society for Brain Neural Science), and KSSO (Korean Society for the Study of Obesity). Further, she selected as a Ph.D fellowship from NRF (National Research Foundation) of South Korea. 

*  rusatis57@snu.ac.kr

Deok-hyeon Cheon, Graduate student

Cheon Deok-hyeon graduated from Busan National University with a major in Biology and began his internship in medical science at Seoul National University in March 2017. After a year of twists and turns, He finally entered the medical school in March 2018. After admission, studies on Brain-Gut Axis are mainly conducted, and the main methods of experimentation include Tissue Clearing, Genotyping, intraGastric Infusion, Liver/Stomach Excision, Mouse Behavior Study, and Stereotaxic Surgery. 

* dhcheon1101@snu.ac.kr

Yu-Been Kim, Graduate student

Yu-Been Kim is interested in researching the higher-order controls (memory, emotion, etc.) of food-related behavior. In particular, she focuses on research on how the value of food is learned and how reward memory is formed. It is mainly conducted as several behavioral experiments with experimental techniques such as Fiber photometry, Miniature-microscope, Optogenetics, stereotaxic surgery, and gastric infusion surgery. 

* 1993vin@gmail.com 

Young Hyun Yun, Graduate student

Young Hyun Yun received her master's degree in Anatomy and Cell Biology from Seoul National University College of Medicine and is continuing her career path as a PhD student and teaching assistant. She earned her numerous academic awards both internationally and domestically as listed below:
2020 Investigator Award, Asian Organization for Crohn’s & Colitis (AOCC)
2020 Best Presentation Award, Korean Association for the study of Intestinal Diseases (kasid)
2020 Best Presentation Award, Korean Society for Brain and Neural Sciences (KSBNS)
2020 Best Oral Presentation Award, Korean Association of Anatomists (KAA)
2021 Best Oral Presentation Award, Korean Association of Basic Medical Scientists (kabms)
2022 Anatomic histotechnologist (certificate), Korean Association of Anatomists (KAA) 

* yunyh@snu.ac.kr

Leslie Jaesun Ha, Graduate student

Leslie Jaesun Ha graduated from Kookmin University with a major in forest and biotechnology, and started as an intern at Seoul National University College of Medicine in March 2019. After that, she enrolled in September 2019 and has been conducting research as a doctoral program until now. She is conducting research in collaboration with the Primate Center to analyze primate feeding behavior and to observe changes in feeding behavior due to the regulation of neuronal activity in response to chemical and light stimuli. Research on the relationship between feeding behavior and memory in rodents is also in progress.

Currently, Leslie Jaesun Ha has submitted a thesis on the analysis of primate feeding behavior as the first author, and has experience of presenting at numerous domestic and foreign conferences and receiving the best poster award at the 2021 Korean Endocrinology Society. 

* jsha22@snu.ac.kr

Miwoo Lee, Graduate student

.* miwoolee61@gmail.com

Changdae Ji, Graduate student

* greater9244@snu.ac.kr

Kyusik Kim, Graduate student

Kyusik Kim graduated from Sogang University majoring in life science. He enrolled in graduate school for Seoul National University in 2020 studying with his PI Hyung Jin Choi. He investigated the neural mechanism of appetite in the hypothalamus and recently published the work at biorxiv. He has won prize for 2021 Seoul National University Experimental Methods Workshop, work as educator in FNMR educational program (Matlab 2 time), run youtube channel for Matlab. 

* bregogo2@gmail.com

Sang-ho Jeong, Graduate student

Sang-ho Jeong graduated from Kyunghee University with a major in biology and entered Seoul National University in March 2022. He started as an intern at the Seoul National University College of Medicine in 2021. After that, he enrolled in March 2022 and has been conducting research as a MS/PhD integrated program until now. Under feeding behavior, he is interested in stress and observation behavior. 

* songout3@gmail.com

Yunkyo Jung, Graduate student

Yunkyo Jung graduated Duksung women's university, majored in biotechnology, and chemistry. She has entered Seoul National university college of medicine as a graduate student on March, 2022, been studying at FNMR with professor Hyungjin Choi. She has been conducting experiments about lateral hypothalamas GABA neurons with non-human primates since December ,2020 with Jaesun Ha. She is now starting to study about eating disorders and food addiction. 

* yunkyo75@gmail.com

Sumin Lee, Graduate student

Sumin Lee majored in food and nutrition at Sookmyung Women's University. She joined Prof. Choi's lab in September 2022 and is studying eating behavior using rodents and humans. Currently, she is conducting a study to evaluate the hypothalamic obesity related factors and the response of the treatment in hypothalamic obesity patients.

* suminlee826@gmail.com

Hwa Yun Shin, Graduate student

Hwa Yun Shin obtained her Bachelor's degree in Food and Nutrition at Chung-Ang University. She will enter an integrated master’s and Ph.D. course at Seoul National University.

She thinks neuroscience is the key to providing answers and consolation to the problems humanity is agonizing over. In particular, she is interested in uncovering neural networks that can control and suppress the inner desire to eat more, even in an external environment of modern society where access to nutrient-rich food is high. With these basic researches and discoveries, she has a goal to become a researcher who contributes to lowering the incidence of obesity and diabetes around the world.

* shinhwayun@snu.ac.kr

Solin Baek, Graduate student

Solin Baek graduated from Kyunghee University majoring in genetic engineering and entered Seoul National University College of Medicine in March 2023. Since May 2022, she has been conducting neural mechanism research on appetite using mouse model at FNMR.

 She wants to reveal the neural circuits about uncontrollable appetite, such as impulsive or binge eating and study how ro control and resolve them. Currently, she are developing experimental skills focusing on rodent surgery and behavioral experiments

* wendy98725@gmail.com

Ki-young Jung

* andykyc@snu.ac.kr

Moon-haeng Hu

* mhhur722@gmail.com

Hyuntaek Hong

* vhxpdlxhclq@snu.ac.kr

Junseok Park, Medical student

As a medical student in Seoul National University College of Medicine, he has always been very interested in medical science research. He applied for a medical research mentoring program since his pre-med school years and conducted basic and clinical research in this laboratory. He has published a paper as a first author regarding real world data of Saxenda, a GLP-1 agonist, in South Korea. He is currently interested in how GLP-1 actually works in the brain, and is planning and conducting research on a mice model regarding GLP-1R in the hypothalamus.

* mattty0514@snu.ac.kr

In-hyeok Beak, Medical student

* bih1122@snu.ac.kr

Jisun Min, Intern

* geraniaceae12@gmail.com