Organizer: Yumie RHEE (Yonsei University, Korea)
Per- and polyfluoroalkyl substances (PFAS) are a diverse group of human-made chemicals used in a wide range of consumer and industrial products. PFAS do not easily breakdown and some types have been shown to accumulate in the environment and in our bodies. Exposure to certain types PFAS have been linked to serious health effects. Scientific understanding and technical instrumentation needed to study for PFAS began only recently although PFAS have been in use for more than 80 years. KES in conjunction with ENDO society invited 3 speakers to discuss the issues regarding PFAS with endocrine systems and metabolism.

Organizer: Sunghwan SUH (Dong-A University, Korea)
Thyroid disorders represent one of the most frequent complications of pregnancy associated with adverse obstetric, fetal, and neonatal outcomes. These complications are important especially in case of delayed diagnosis and suboptimal management. As the disorders of the thyroid gland affect a significant proportion of pregnant women, it is of paramount importance to develop uniform international evidence-based protocols for their accurate diagnosis and optimal management. Therefore, KES in collaboration with European Society of Endocrinology (ESE) developed this Joint symposium to announce and discuss the issues regarding thyroid disorders and pregnancy.

Organizer: Hyuk-Joon LEE (Department of Surgery, Seoul National University Hospital)
Bariatric surgery which was originally designed for morbid obesity, is now considered as one of the treatment options for type II diabetes with obesity. In the concept of treatment of type II diabetes, bariatric surgery is also called as “metabolic surgery” or even “diabetic surgery”. Nowadays, metabolic surgery for type II diabetes is not a surgeon’s trend, but it is generally accepted for new onset or uncontrolled type II diabetes with obesity. However, the underlying mechanism, accurate indication, proper surgical procedure, and the prediction of outcome are still not fully investigated. In this session, all about metabolic surgery will be discussed by world famous bariatric surgeons as well as Korean leaders in the field of metabolic surgery.

Organizer: Yumie RHEE (Yonsei University, Korea)
The vision of the joint session between the Japanese Endocrine Society(JES) and Korean Endocrine Society(KES) is to promote true connection among the young rising stars of each society. Each year, sub-specific themes differ, and this year, six excellent young investigators from each society who major in “Bone and Mineral Metabolism” were selected. Clinical coverage on the metabolic bone diseases from childhood to adulthood including a general review in Japan, and parathyroid carcinoma in Korea will be presented. A new era of GPCR regulation in rare bone diseases and bone metabolism after hematopoietic stem cell transplantation will be highlighted in translational and clinical aspects. Furthermore, basic concepts regarding epigenetic regulation of bone formation and molecular signaling on the myogenesis of myoblasts will be presented.