研究室配属　Research Training

◆2026年の研究室配属

NEWS!　今年は、医学科から3名の学生が感染予防医学講座に配属されます。そのうち2名は、マヒドン大学医学部およびチュラロンコン大学理学部に短期留学し、現地で研究活動を行います。5月7日から始まる研究室配属に先立ち、タイの協定校であるマハーサーラカーム大学獣医学部およびウボンラチャタニ大学医学部からの短期留学生（計4名）が4月に来日し、当講座をはじめ、微生物学講座、生理学講座、分子病理学講座に配属され、すでに研究を開始しています。また、5月7日にはマヒドン大学医学部より3名の留学生を迎えるほか、6月にはチュラロンコン大学理学部より4名の短期留学生を受け入れる予定です。今年度も多くの学生が国際的な環境の中で研究に取り組む機会を得ており、活発な交流と実りある成果が期待されます。今年も研究を大いに楽しみましょう。

This year, three medical students will be assigned to our Lab. Two of them will participate in short-term study programs at our partner universities in Thailand, where they will engage in research activities. Prior to the start of the Research Training program on May 7, four short-term exchange students from our partner institutions in Thailand—Mahasarakham University (MSU), and Ubon Ratchathani University (UBU)—arrived in Japan in April. They have already begun their research training in our lab and other participating labs. In addition, we will welcome three exchange students from Mahidol University in May. Furthermore, in June, four short-term students from Chulalongkorn University, are scheduled to join us. This academic year again offers many students valuable opportunities to conduct research in an international environment. We look forward to active exchange and fruitful achievements. Let us all enjoy research together this year as well.

配属学生　氏名	研究テーマ	コメント
2341054　田村伊織	●　マラリア感染病態を規定する免疫機構の探索　　　指導教員：岡本、小林　マラリア原虫（Plasmodium属）感染における病態形成は、寄生虫の増殖・蓄積に直接起因する要因と、それに対する宿主免疫応答によって誘導される病態の双方が関与し、これらの相互作用によって規定される。例えば、Plasmodium berghei ANKAに感染したマウスでは、免疫応答に起因する過剰な炎症反応により脳マラリアを発症する。一方で、Plasmodium yoelii 17XL感染では、高寄生虫血症が主たる病態として観察される。本研究ではマウスモデルを用い、免疫学的手法による病態解析を通じて、マラリア感染病態を規定する免疫機構の解明を目的とする。技術：マウス感染実験、フローサイトメトリー、病理学的解析、免疫染色	【一言】研究を通じて免疫への理解を深めます。一人だけど頑張るそ！
2341003　飯島諒 Aki IIjima	●　Organoid establishment from lung tissues 　　Supervisors: Lect. Dr. Nathachit Limjunyawong (Department of Immunology) Assoc. Prof. Dr. Sakda Khoomrung (Department of Biochemistry) and Kobayashi T We establish lung organoids from surgically resected normal and early-stage lung cancer tissues to create patient-derived 3D models for investigating tumorigenesis, gene expression profiles, and therapeutic responses, as well as for future applications in drug screening. [@Dept of Immunology] Skills to be mastered:	【comments】新しい生活と研究に前向きに楽しく挑みます！
2341079　前田結衣 Yui Maeda	●　Trained immunity in ulcerative colitis and colon cancer 　　Supervisors: Palaga T, Kobayashi T 　 While adaptive immunity is characterized by its ability to generate immunological memory and mount stronger responses upon re-exposure, innate immunity has long been considered to lack this feature. However, recent findings have demonstrated that innate immune cells can acquire a memory-like phenotype through epigenetic reprogramming, a process referred to as “trained immunity.” Accumulating evidence suggests that trained immunity is involved in the pathogenesis of chronic inflammatory diseases, including ulcerative colitis (UC), which is associated with an increased risk of colorectal cancer. Environmental factors such as a high-fat diet may enhance inflammatory responses by modulating innate immune cell function. In this study, we aim to explore the role of trained immunity in the progression of UC and to determine its potential contribution to colorectal cancer development. In addition, we seek to elucidate the mechanisms linking persistent inflammation and tumorigenesis. Skills to be mastered:	【comments】タイでの研究を通じて、新たな視点や価値観に触れ、自分自身の成長につなげたいです。
Kanwara Pha-ngam (Pleng) Faculty of Vetarinaly Science, Mahasarakham University	●　Role of CCL9-CCR1 Signaling on the Development of Psoriasis 　　Supervisors: Kobayashi T, Khunsri T Psoriasis is a chronic inflammatory skin disease characterized by keratinocyte hyperproliferation and immune cell infiltration. The imiquimod (IMQ)-induced mouse model closely mimics human psoriasis and is widely used to study its immune mechanisms. Chemokines regulate immune cell migration, and the chemokine receptor CCR1 and its ligand CCL9 play important roles in recruiting myeloid cells and T cells during inflammation. However, their role in psoriasis remains unclear. In this study, we will induce psoriasis using IMQ in CCR1- and CCL9-deficient mice to investigate the contribution of this pathway to disease development. We will analyze immune cell infiltration and cytokine expression, and evaluate skin inflammation by flow cytometry and histopathological analysis (H&E staining). These findings may reveal CCR1–CCL9 signaling as a potential therapeutic target for psoriasis with fewer side effects. 　 Skills to be mastered: Animal Disease Model (Psoriasis), flow cytometry, Histopathology (H&E)	【comments】 I’m very happy to be here. I have felt warmly welcomed since the very first day I arrived. I’ve learned valuable laboratory techniques for research and gained new skills throughout my time here. I’ve also enjoyed the delicious food, which made the experience even more special. This has been a truly wonderful experience, and I have no regrets about coming here. Thank you very much to everyone for your kind welcome. 本当にありがとうございます。とても嬉しいです。
Putita Banlukantigul (Fourth) Faculty of Vetarinaly Science, Mahasarakham University	●　The Role of P2X7 Receptor in Fructose-Induced MASLD in Zebrafish 　　Supervisors: Hanada R, Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) is a growing global health crisis characterized by excessive fat accumulation in the liver. Heavily driven by modern high-fructose diets, MASLD can progress to severe liver inflammation, cellular damage, and cirrhosis. Developing effective, targeted treatments for this condition remains a major clinical challenge. In experiments, they utilize a zebrafish model to investigate the underlying mechanisms of fructose-induced liver disease. In this study, zebrafish are exposed to a high-fructose environment to induce MASLD-like conditions. We then introduce Brilliant Blue G (BBG)—a specific antagonist that blocks the P2X7 receptor, which is known to trigger cellular inflammation. The primary goal is to determine if blocking the P2X7 receptor with BBG can successfully prevent or reduce fructose-induced fat accumulation. Finally, this experiment aims to uncover whether the P2X7 pathway could serve as a promising new therapeutic target for treating metabolic liver diseases. Skills to be mastered: Zebrafish care, Zebrafish egg injection, H&E and Oil Red O staining, Paraffin embedding, Sectioning, Scientific reading and analysis (Journal club)	【comments】 It was a short but incredibly valuable time, and it will definitely be a chapter of my life that I will remember forever. Being here allowed me to practice lab techniques, improve my communication skills, learn about the culture, and adapt to a new society. I also really loved the weather during my stay—experiencing the cherry blossoms, the cold, and the rain. But my absolute favorite moment was visiting 'Umitamago.' The view right after getting off the bus, with the sea on the left, the mountains on the right, the cool breeze, and the gentle sunshine, felt like a dream. I was truly so happy. The people here are also incredibly kind. Furthermore, presenting my first journal club was such a wonderful experience. I must give a special thanks to Magdeline for always taking care of me, teaching me, and guiding me through various techniques. Lastly, thank you to everyone for all your help, for looking after me, and for taking me out to travel around throughout my entire stay. Love you, Oita!"
Pattranit Pengtaphan (Nan) Faculty of Vetarinaly Science, Mahasarakham University	●　 Evaluation of diagnostic protocols for Severe Fever with Thrombocytopenia Syndrome (SFTS) virus infection in the Kyushu region and Field observation at Oita Animal Welfare Center 　　Supervisors: Kiimtsuki K Severe Fever with Thrombocytopenia Syndrome (SFTS) is an emerging tick-borne zoonotic disease frequently reported in the Kyushu region of Japan, affecting both humans and companion animals, especially cats. During this training, I learned the laboratory workflow for SFTSV detection, including safe sample handling, RNA extraction from clinical specimens and tick samples, and real-time RT-PCR analysis, with particular emphasis on biosafety procedures due to the zoonotic risk associated with SFTSV. These experiences enhanced my understanding of molecular diagnostic techniques and strengthened my awareness of infectious disease surveillance in endemic areas such as Kyushu. Recognizing my interest in small animal medicine, my supervisor provided me with the opportunity to visit the Oita Animal Welfare Center, where I observed companion animal management, disease control measures, and adoption programs. I also learned about preventive strategies for infectious diseases in shelter environments, particularly feline diseases such as FIV, as well as the important role of animal welfare centers in promoting public health and responsible pet ownership. Overall, these experiences improved my understanding of the integration between diagnostic laboratory work, animal welfare services, and veterinary public health systems in Japan. 　 Skills to be mastered: real-time RT-PCR	【comments】 Thank you everyone for welcoming me with your smiles every day, from the very first day we met and throughout my internship. The warmth and kindness you shared with me have become one of the most precious memories of my life. Although the time from the first day to the last was not very long, it was deeply meaningful, and it is something I will always keep in my heart and never forget. I would like to sincerely thank all the professors and seniors for taking care of me, guiding and sharing your knowledge, experiences, and encouragement with me. These were not only lessons from an internship, but also an important source of inspiration that motivates me to keep improving myself and continue pursuing my dreams in the future. For me, this place was not just an internship site but a place filled with warm memories and truly kind people. I hope the world will be as kind to all of you as you have been to me and for the smiles you gave me every day. I will never forget this precious time we shared together. As I grow, I hope to become both capable and kind, just like all of you. And wherever we may meet again someday, I will always remember the beautiful moments we created together. Thank you very much from the bottom of my heart.
Nattanon Somsanoa (Pack) Faculty of Medicine, Ubon Ratchathani University	●　Research themes 　　Supervisors: Hijiya N 　 Skills to be mastered:	【comments】
Nattansa Ngamhathaisri (Ink) Faculty of Medicine Siriraj Hospital, Mahidol University	●　Genomic Analysis of Helicobacter pylori Using Oxford Nanopore Long-Read Sequencing to Explore Genetic Diversity and Virulence-Associated Factors 　　Supervisors: Yoshio Yamaoka and Takashi Matsumoto Helicobacter pylori is a Gram-negative bacterium that colonizes the human stomach and is known to be associated with chronic gastritis, peptic ulcer disease, and gastric cancer. Although more than half of the world’s population is infected, considerable genetic diversity exists among H. pylori strains, contributing to differences in virulence, host adaptation, and disease outcomes. Understanding these genomic variations is essential for uncovering the mechanisms underlying bacterial persistence and pathogenesis. This research focuses on characterizing the genomic diversity of Helicobacter pylori using Oxford Nanopore long-read sequencing technology. Through whole-genome analysis of H. pylori isolates, the study aims to identify genetic variations and virulence-associated factors involved in bacterial colonization, adaptation to the gastric environment, and disease progression. The findings may provide new insights into the molecular mechanisms that enable H. pylori to establish long-term infection and interact with its host. In addition, increasing antimicrobial resistance among H. pylori strains has become a major challenge in eradication therapy, highlighting the importance of understanding the genomic characteristics of this pathogen. Throughout the project, I acquired practical skills in the isolation and culture of Helicobacter pylori, encompassing the entire experimental workflow, including agar plate preparation, bacterial handling, genomic DNA extraction, DNA quantification using NanoDrop and Qubit fluorometry, gel electrophoresis, library preparation, DNA ligation, and Oxford Nanopore long-read sequencing. In addition, I gained experience in sequencing quality assessment and genomic analysis to explore genetic diversity and virulence-associated factors among H. pylori strains. This experience enhanced my understanding of microbial genomics and provided valuable insights into the molecular mechanisms underlying bacterial adaptation and pathogenicity. 　 Skills to be mastered:	【comments】
Virata Smitakarnchana (Mo) Faculty of Medicine Siriraj Hospital, Mahidol University	●　Investigating the Role of P2X7 Receptor in Diet-Induced Fatty Liver Disease Using a Zebrafish Model 　　Supervisors: Hanada R. Evaluation of P2X7 Receptor Knockout as a Potential Strategy to Prevent the Progression of High-Cholesterol Diet-Induced Fatty Liver Disease in Zebrafish Nowadays, the prevalence of diet-induced fatty liver disease continues to rise worldwide. It is essential to understand its metabolic mechanisms and develop effective therapeutic strategies in the future. Through this research project, I had the opportunity to investigate the pathophysiology of fatty liver disease while gaining valuable hands-on experience in biomedical research using zebrafish as an animal model. This experience allowed me to enhance my understanding of liver disease progression and the scientific research process. Throughout the project, I acquired practical skills in the generation and analysis of knockout zebrafish, encompassing the entire experimental process—from zebrafish breeding and genetic screening to histological assessment of hepatic lipid accumulation using hematoxylin and eosin (H&E) staining. Beyond the academic and research experience, I greatly enjoyed living in a peaceful environment surrounded by beautiful mountain scenery. Throughout my time in the Department of Physiology at Oita University, I have been sincerely grateful for the opportunities and guidance that contributed significantly to my academic development, which I will surely cherish these memorable experiences for a life time. Skills to be mastered zebrafish husbandry and caring, zebrafish breeding, zebrafish dissection, mutation screening, H&E staining and paraffin sectioning, 　 Skills to be mastered:	【comments】
Natt Sagoolngam (Poomjai) Faculty of Medicine Siriraj Hospital, Mahidol University	●　Role of CCL2-CCR2 Signaling on the Development of Psoriasis 　　Supervisors:Ekronarongchai S. and Kobayashi T. Psoriasis is a chronic, immune-mediated skin disease characterized by well-demarcated, erythematous plaque with scaling which caused by inflammation and hyperproliferation of keratinocytes. Even though, extensive researches have elucidated many immune pathways involved—most notably the IL23/IL17 axis and the contribution of dendritic cells, T cells and keratinocytes itself. The precise cause is still unclear. Among the causes of psoriatic inflammation, chemokines play a pivotal role in recruiting the cells associated with psoriasis. CCR2 is the G-protein coupled receptor which expressed on many immune cells involved in psoriasis pathogenesis such as monocytes and lymphocytes. Despite the recognized importance of chemokine signaling, the contribution of CCL2-CCR2 axis to psoriatic inflammation has not been fully known. So In this research, we aim to assess the effects of CCL2-CCR2 axis on psoriatic inflammation by using IMQ-induced mouse model. Our findings will clarify the role of CCL2-CCR2 axis in the pathogenesis of psoriasis which may pave way for novel therapeutic agents. Skills to be mastered:	【comments】
Chidnapha Thiphanuka (Nampoon) Faculty of Science, Chulalongkorn University	●　Molecular Mechanisms of Helicobacter pylori Colonization and Host Adaptation 　　Supervisors: Mimuro H. Helicobacter pylori is a bacterium that colonizes the human stomach and is closely associated with chronic gastritis, peptic ulcers, and gastric cancer. Because infection is usually acquired during childhood and can persist throughout life, understanding how the bacterium survives in the stomach and adapts to its host is important for preventing disease and improving treatment strategies.This research focuses on uncovering how H. pylori establishes long-term infection and contributes to disease development. Using animal models, clinical isolates, and patient samples, the study investigates the interactions between the bacterium and its host, with particular attention to the factors involved in persistent infection, inflammation, and gastric cancer progression. The project also explores virulence mechanisms that may be shared among different mucosal bacterial pathogens, providing broader insights into how bacteria adapt to and survive within their hosts. In addition, given the growing concern of antimicrobial resistance, this research aims to identify new approaches for infection control that do not rely solely on antibiotics. By improving our understanding of H. pylori pathogenesis and host adaptation, the findings may support the development of novel biomarkers, therapeutic targets, and more sustainable strategies for preventing and treating bacterial infections. 　 Skills to be mastered:	【comments】
Kaewkarn Wattanakanin (Serene) Faculty of Science, Chulalongkorn University	●　One Health–Based Assessment of Toxoplasma gondii Infection and Identification of Novel Virulence Factors 　　Supervisors: Kamiyama N. and Kobayashi T. Toxoplasma gondii is a widespread zoonotic parasite that affects both humans and animals and can lead to serious congenital toxoplasmosis if primary infection happens during pregnancy. In Japan, infection rates are relatively low, but the limited immunity within the population raises the risk of infection for those who are susceptible. This research utilizes a One Health framework to examine the occurrence and spread of T. gondii in Oita Prefecture. Serum samples obtained from humans and animals such as pigs, cats, and wild boars are examined for anti-Toxoplasma antibodies to evaluate infection status and possible sources of exposure. In addition, experimental infection using the ME49 strain and knockout mouse models is performed to explore host immune responses and identify novel virulence factors involved in parasite pathogenicity. The findings will contribute to a better understanding of toxoplasmosis epidemiology and disease mechanisms. Simultaneously, we seek to discover new virulencefactors that enhance parasite pathogenicity and facilitate host adaptation. 　 Skills to be mastered: RT-PCR, ELISA,	【comments】
Supichaya Itsariyatecha (Baitoey) Faculty of Science, Chulalongkorn University	●　Phosphoglycerate Dehydrogenase (PHGDH) 　　Supervisors: Hanada T. Phosphoglycerate Dehydrogenase (PHGDH) is the first and rate-limiting enzyme in the serine synthesis pathway. PHGDH catalyzes the NAD-dependent conversion of 3-phosphoglycerate to 3-phosphohydroxypyruvate, initiating L-serine biosynthesis. Because serine is essential for amino acid, nucleotide, and lipid synthesis, PHGDH plays a crucial role in cellular metabolism. In addition, PHGDH has been identified to have a role in supporting PKM2 to phosphorylates H3T11 and regulating transcription of senescence-associated genes. The absence of PHGDH can lead to Neu-Laxova syndrome (NLS), a rare autosomal recessive disorder characterized by severe fetal growth restriction, microcephaly, lissencephaly, cerebellar hypoplasia, ichthyosis, and high perinatal mortality. Most affected infants die shortly after birth due to respiratory or neurological complications. Mutations in PHGDH also have been identified as one of the genetic causes of NLS, highlighting the critical role of serine biosynthesis in fetal growth and brain development. This research focused on PHGDH role in neurodevelopmental and aging. To further investigate the functions and pathway of PHGDH, we established a zebrafish knockout model using CRISPR CAS9 system. Skills to be mastered:	【comments】
Kanitakorn Bunauy (Blue) Faculty of Science, Chulalongkorn University	●　 Mechanism of drug resistance in digestive track cancer by using 3D cell culture 　　Supervisors: Tsukamoto Y. The neoadjuvant chemotherapy (NAC) is one of the standard approaches to treating patients with gastrointestinal cancer such as esophageal squamous cell carcinoma (ESCC) and colorectal cancer. However, the efficiency of NAC treatment has been poor prognosis in some patients, and the underlying mechanism of the chemoresistance in gastrointestinal cancer remains unclear. With in vitro 3D cell culture technology, we performed organoid establishment of esophagus and colon cancer and compared drug sensitivity before and after NAC treatment. Moreover, we performed gene knockdown in organoids using siRNA electroporation with some candidate genes, such as CDH1 and PGF, to measure whether these genes are involved in the development of chemoresistance cancer or not to better understand the mechanism and signaling pathway for future clinical application. 　 Skills to be mastered:	【comments】

● タイからの留学生が医学部長を表敬訪問しました（4月8日）

2026年4月8日、タイから来日中の留学生が大分大学医学部長を表敬訪問しました。

　本年度、本学に短期留学中のタイ協定校の学生たちが、猪股雅史医学部長を表敬訪問しました。今回訪問したのは、マハーサーラカーム大学獣医学部（Faculty of Vetarinaly Science, Mahasarakham University, MSU）およびウボンラチャタニ大学医学部（Faculty of Medicine, Ubon Ratchathani University, UBU）から来日し、本学医学部にて研究活動に取り組んでいる留学生の皆さんです。MSUのKanwara Pha-ngam (Pleng)さんは小林教授、Putita Banlukantigul (Fourth)さんは花田礼子教授、Pattranit Pengtaphan (Nan)さんは君付講師が指導教員です。UBUのNattanon Somsanoa (Pack)くんは泥谷准教授が指導教員です。表敬訪問には、UBUの Tae Ratana Lek 先生にもご参加いただきました。表敬訪問の場では、医学部国際交流委員会からの奨励金が、猪股医学部長より学生一人ひとりに手渡されました。学生たちは、それぞれの研究テーマや留学中の目標、日本での生活について紹介し、猪股医学部長からは温かい歓迎と激励の言葉が贈られました。歓談は終始和やかな雰囲気の中で行われ、学生たちにとっては、日本での学びをさらに深める貴重な機会となりました。短期留学を通じて得られる研究経験や国際交流の体験が、学生たちの将来の大きな財産となることが期待されます。

Thai Exchange Students Pay Courtesy Visit to the Dean of the Faculty of Medicine (April 8)

On April 8, 2026, exchange students from Thailand currently studying at Oita University paid a courtesy visit to Professor Masafumi Inomata, Dean of the Faculty of Medicine. The visiting students are currently conducting research at the Faculty of Medicine, Oita University, and come from the Faculty of Veterinary Science, Mahasarakham University (MSU) and the Faculty of Medicine, Ubon Ratchathani University (UBU). From MSU, Ms. Kanwara Pha-ngam (Pleng) is supervised by Professor Kobayashi, Ms. Putita Banlukantigul (Fourth) by Professor Reiko Hanada, and Ms. Pattranit Pengtaphan (Nan) by Lecturer Kimitsuki. From UBU, Mr. Nattanon Somsanoa (Pack) is supervised by Associate Professor Hijiya. Dr. Tae Ratana Lek from UBU also kindly joined the visit. During the meeting, each student was presented with a scholarship grant from the Faculty of Medicine International Exchange Committee by Dean Inomata. The students introduced their research themes, goals during their stay in Japan, and their experiences of daily life in Oita. Dean Inomata offered warm words of welcome and encouragement. The meeting was held in a friendly and relaxed atmosphere, providing the students with a valuable opportunity to deepen their academic experience in Japan. It is hoped that the research experience and international exchange gained through this short-term program will become a significant asset for the students’ future careers.

● MSUおよびUBUの留学生と本学学生との交流会を開催しました（4月20日）

2026年4月20日、タイからの留学生との交流会を開催しました。

　4月20日、大分大学医学部において、タイ・マハーサーラカーム大学獣医学部の Pleng さん、Fourth さん、Nan さん、ならびにウボンラチャタニ大学医学部の Pack くんを迎え、本学医学科の学生および教職員との交流会を開催しました。交流会には、5月よりタイの協定校へ短期留学を予定している前田さんをはじめ、すでに留学経験のある江口さん、吉良さん、椎名さん、さらに海外留学や国際交流に関心を持つ医学科3年生の衛藤さん、大倉さん、柿本さん、神谷さん、菊池さん、上原さんが参加しました。会場にはおやつや飲み物も用意され、和やかな雰囲気の中で学生・教職員全員が自己紹介を行い、その後は活発な交流が行われました。異なる文化的背景や専門分野を持つ学生たちが直接対話することで、互いの理解を深める貴重な機会となりました。また、留学経験のある学生からは現地での体験談やアドバイスが紹介され、これから留学を予定している学生や海外交流に関心を持つ学生にとって、大変有意義な時間となりました。今後もこのような国際交流活動を継続し、学生が世界に目を向け、多様な価値観に触れながら成長できる機会を積極的に提供してまいります。

Exchange Gathering with International Students from Thailand Held on April 20, 2026

On April 20, 2026, an exchange gathering with international students from Thailand was held at the Faculty of Medicine, Oita University. We welcomed Pleng, Fourth, and Nan from the Faculty of Veterinary Science, Mahasarakham University, as well as Pack from the Faculty of Medicine, Ubon Ratchathani University. They joined medical students and faculty members of Oita University for this special gathering event. Participants also included Ms. Maeda, who is scheduled to begin a short-term study program at one of our partner universities in Thailand this May; students with previous study-abroad experience, Ms. Eguchi, Ms. Kira, and Ms. Shiina; and third-year medical students interested in overseas study and international exchange: Mr. Eto, Mr. Okura, Ms. Kakimoto, Ms. Kamiya, Mr. Kikuchi, and Ms. Uehara. Snacks and drinks were prepared for the occasion, creating a warm and friendly atmosphere. All students and staff introduced themselves, followed by lively conversations and active exchange among participants. It was a valuable opportunity for students from different cultural backgrounds and academic fields to communicate directly and deepen mutual understanding. Students who had previously studied abroad also shared their experiences and advice, making the event especially meaningful for those planning future overseas programs or interested in international exchange. We will continue to promote opportunities such as this, helping students broaden their global perspectives and grow through exposure to diverse cultures and values.

● UBUからの留学生Packくんにプログラム修了証が授与されました（4月27日）

　4月27日、ウボンラチャタニ大学医学部から短期留学中の Pack くんに、研修プログラムの修了証が授与されました。修了証は、指導教員である泥谷准教授より手渡されました。当日は、受け入れ先である分子病理学講座の教職員の皆さまにもご出席いただき、これまでの研究活動や日本での生活を振り返りながら、和やかな雰囲気の中で修了を祝いました。最後には全員で記念撮影を行い、充実した研修期間を締めくくりました。Pack くん、大変お疲れさまでした。本学での学びと経験が、今後の研究活動や将来のキャリアに大きく生かされることを願っています。

Certificate of Completion Presented to Pack from Ubon Ratchathani University (April 27)

On April 27, Pack, a short-term exchange student from the Faculty of Medicine, Ubon Ratchathani University, was presented with a certificate of completion for the training program. The certificate was awarded by Associate Professor Hijiya, who served as his academic supervisor. Faculty and staff members from the Department of Molecular Pathology, which hosted Pack during his stay, were also present to celebrate the successful completion of his program and to reflect on his research activities and life in Japan in a warm and friendly atmosphere. The ceremony concluded with a commemorative group photo, marking the end of a fulfilling training period. Congratulations, Pack, and thank you for your hard work. We hope that the knowledge and experiences gained at Oita University will contribute greatly to your future research activities and professional career.

● MSUからの留学生にプログラム修了証が授与されました（4月28日）

マハーサーラカーム大学からの留学生による成果発表会を開催しました（4月28日）

　4月28日、マハーサーラカーム大学獣医学部からの短期留学生である Plengさん、Fourthさん、Nanさんが研究室配属を終え、成果発表会を行いました。本学医学科の学生および教職員が参加し、終始和やかながらも熱意ある雰囲気の中で進行しました。発表では、それぞれが取り組んできた研究内容や成果に加え、大分での生活や交流を通じて得た経験についても紹介されました。発表後には質疑応答が行われ、参加者との間で活発な意見交換がなされました。その後、指導教員より各学生に修了証書が授与され、充実した研究期間の締めくくりとなりました。夜には本学の学生とともに最後の夕食を囲み、これまでの思い出を振り返りながら和やかな時間を過ごしました。今回の経験が、今後の研究活動や将来の進路に生かされることが期待されます。

Research Presentation Session by Students from Mahasarakham University (April 28)

On April 28, Pleng, Fourth, and Nan, short-term exchange students from the Faculty of Veterinary Science, Mahasarakham University, concluded their laboratory training and delivered presentations on their research outcomes. The session was attended by medical students and faculty members of Oita University and was conducted in a warm yet highly engaging atmosphere. In their presentations, the students introduced not only their research projects and findings but also their experiences of studying and living in Oita. The session was followed by a Q&A, during which lively and insightful discussions took place among the participants. After the presentations, certificates of completion were awarded to each student by their academic supervisors, marking the successful completion of their research training. In the evening, the students shared a final dinner with Oita University students, enjoying a pleasant time reflecting on their experiences together. It is hoped that the knowledge and experiences gained during this program will contribute to their future research and career development.

● タイからの留学生が医学部長を表敬訪問しました（5月20日）

2026年5月20日　タイ協定校からの短期留学生が医学部長を表敬訪問しました。

　本年度、本学に短期留学中のタイ協定校の学生たちが、猪股雅史医学部長を表敬訪問しました。今回訪問したのは、マヒドン大学医学部シリラート病院およびチュラロンコン大学理学部から来日し、本学医学部で研究活動に取り組んでいる短期留学生の皆さんです。マヒドン大学医学部からは、Ngamhathaisri さんが山岡吉生教授の研究室、Smitakarnchana さんが花田礼子教授の研究室、Sagoolngam くんが感染予防医学講座（小林研究室）に配属されています。また、チュラロンコン大学理学部からは、Chulalongkorn さんが三室仁美教授の研究室、Wattanakanin さんが感染予防医学講座に配属されています。表敬訪問には、猪股雅史医学部長をはじめ、山岡吉生教授、三室仁美教授、小林隆志教授らが出席しました。表敬訪問の場では、医学部国際交流委員会からの奨励金が、猪股医学部長より学生一人ひとりに手渡されました。学生たちは、それぞれの研究テーマや日本での研究生活について紹介し、猪股医学部長からは歓迎と激励の言葉が贈られました。歓談は終始和やかな雰囲気の中で行われ、学生たちにとっては研究への意欲をさらに高める貴重な機会となりました。短期留学を通じて得られる研究経験や国際交流の体験が、今後の学術的な成長と国際的なキャリア形成につながることが期待されます。今後も本学医学部では、タイ協定校との交流を一層推進し、国際的な教育・研究ネットワークの発展に努めてまいります。

Thai Exchange Students Pay Courtesy Visit to the Dean of the Faculty of Medicine (May 20)

On May 20, 2026, international students from Oita University’s partner institutions in Thailand, who are currently participating in short-term research programs at the Faculty of Medicine, paid a courtesy visit to Professor Masafumi Inomata, Dean of the Faculty of Medicine. The visiting students were from the Faculty of Medicine Siriraj Hospital, Mahidol University, and the Faculty of Science, Chulalongkorn University. From Mahidol University, Ms. Ngamhathaisri is conducting research in the laboratory of Professor Yoshio Yamaoka, Ms. Smitakarnchana in the laboratory of Professor Reiko Hanada, and Mr. Sagoolngam in the Department of Infectious Disease Control under Professor Takashi Kobayashi. From Chulalongkorn University, Ms. Chulalongkorn is conducting research in the laboratory of Professor Hitomi Mimuro, while Ms. Wattanakanin is working in the Department of Infectious Disease Control under Professor Takashi Kobayashi. The meeting was attended by Dean Inomata, Professor Yamaoka, Professor Mimuro, and Professor Kobayashi. During the visit, each student received a scholarship award from the Faculty of Medicine International Exchange Committee, presented personally by Dean Inomata. The students introduced their research projects, shared their experiences of studying in Japan, and discussed their goals for the remainder of their stay. Dean Inomata warmly welcomed the students and offered words of encouragement for their academic and professional development. The meeting was conducted in a friendly and welcoming atmosphere, providing a valuable opportunity for the students to further strengthen their motivation for research and international collaboration. The research experience and cultural exchange gained through this program are expected to contribute significantly to their future academic growth and global careers. Oita University remains committed to strengthening its partnerships with universities in Thailand and to promoting international education and research collaborations in the years ahead.

Small trip to Yufuin and Beppu (May 23)

On May 23, Ink and Mo enjoyed a short trip to Yufuin and Beppu, two of Oita Prefecture’s most popular tourist destinations. They spent the day exploring the beautiful scenery, local attractions, and unique atmosphere of these famous hot spring towns. In the evening, Sachi Takuma joined them for dinner, and they enjoyed sushi together

● マヒドン大学医学部の学生が高度救命救急センターを見学しました（5月29日）

　2026年5月29日、マヒドン大学医学部から来日中の Nattくん、Inkさん、Moさんが、大分大学医学部附属病院高度救命救急センターを見学しました。今回の見学は、安部隆三教授のご厚意により実現し、姫野先生および関先生に施設をご案内いただきました。見学では、日本の救急医療体制やドクターヘリの運用について詳しい説明を受けました。特に、ドクターヘリが全国の都道府県に配備されていることや、大分県内でカバーできる範囲について紹介され、学生たちは大きな関心を示していました。また、「目的地までどのくらいの時間で到着できるのか」「最長でどれくらい飛行できるのか」「何名まで搭乗できるのか」など、ドクターヘリの実際の運用に関する質問が次々と寄せられ、活発な質疑応答が行われました。日本の高度な救急医療システムや地域医療を支える体制について理解を深める貴重な機会となりました。今回の見学を通じて、学生たちは日本の救急医療の現場を直接学ぶことができ、国際的な視点から医療を考える有意義な経験となりました。このような貴重な学びの機会を提供してくださった安部教授、そして丁寧にご案内いただいた姫野先生、関先生をはじめとする高度救命救急センターの皆様に心より感謝申し上げます。

Mahidol University Medical Students Visit the Advanced Emergency and Critical Care Center (May 29)

On May 29, 2026, Natt, Ink, and Mo, medical students from the Faculty of Medicine, Mahidol University, visited the Advanced Emergency and Critical Care Center at Oita University Hospital. The visit was made possible through the generous support of Professor Ryuzo Abe, and the students were guided by Dr. Himeno and Dr. Seki. During the visit, the students learned about Japan’s emergency medical care system and the operation of the Doctor-Heli emergency medical helicopter service. They were particularly interested in learning how Doctor-Heli systems are deployed throughout Japan and how they support emergency medical care across Oita Prefecture. The students actively engaged in the discussion, asking questions such as how quickly the helicopter can reach its destination, its maximum flight range, and the number of passengers it can accommodate. These discussions provided valuable insights into the practical operation of Japan’s advanced emergency medical transport system. The visit offered an excellent opportunity for the students to gain first-hand knowledge of emergency medicine in Japan and to broaden their international perspectives on healthcare delivery. We would like to express our sincere gratitude to Professor Abe for arranging this valuable learning opportunity, and to Dr. Himeno, Dr. Seki, and all the staff of the Advanced Emergency and Critical Care Center for their warm hospitality and informative guidance.

● チュラロンコン大学・マヒドン大学からの留学生と本学学生との交流会を開催しました（5月29日）

　5月29日、チュラロンコン大学およびマヒドン大学から本学に短期留学中の学生と、本学医学科の学生との交流会を開催しました。今回参加した留学生は、チュラロンコン大学理学部の Serene さん、Nampoon さん、そしてマヒドン大学医学部の Ink さん、Mo さん、Natt くんです。本学からも海外留学や国際交流に関心を持つ学生が参加し、和やかな雰囲気の中で交流を深めました。交流会では、まず参加者全員が自己紹介を行い、それぞれの出身大学や研究テーマ、趣味、日本での生活について紹介しました。その後は自由歓談の時間を設け、研究活動や学生生活、将来の進路、日タイ両国の文化の違いなどについて活発な意見交換が行われました。留学生たちは大分での研究や生活についての感想を語り、本学学生にとっても海外の大学や研究環境について直接話を聞く貴重な機会となりました。また、今後タイへの留学を希望する学生にとっては、現地の学生と交流できる有意義な場となりました。短い時間ではありましたが、学生同士の親睦を深めることができ、国際交流の重要性を改めて実感する機会となりました。今後もこのような交流の場を継続し、学生が国際的な視野を広げる機会を積極的に提供していきたいと考えています。

Exchange Meeting with Students from Chulalongkorn University and Mahidol University (May 29)

　On May 29, an exchange meeting was held between short-term international students from Chulalongkorn University and Mahidol University and students of the Faculty of Medicine at Oita University. The participating students included Serene and Nampoon from the Faculty of Science, Chulalongkorn University, and Ink, Mo, and Natt from the Faculty of Medicine, Mahidol University. Oita University medical students who are interested in international exchange and studying abroad also joined the event. The meeting began with self-introductions, during which each participant shared information about their home university, research interests, hobbies, and experiences in Japan. This was followed by informal discussions, allowing students to exchange views on research, student life, future career goals, and cultural differences between Japan and Thailand. The international students shared their impressions of studying and living in Oita, while Oita University students had the opportunity to learn directly about academic life and research environments in Thailand. The event also provided valuable insights for students considering future study-abroad opportunities. Although the gathering was relatively short, it offered an excellent opportunity for participants to build friendships and strengthen mutual understanding. The event highlighted the importance of international exchange and cross-cultural communication in medical education. We look forward to continuing such activities and providing students with opportunities to broaden their global perspectives through meaningful international interactions.

研究室配属 Research Training