1.Corrigendum to “Cyclic Phytosphingosine-1-Phosphate Primed Mesenchymal Stem Cells Ameliorate LPS-Induced Acute Lung Injury in Mice”
Youngheon PARK ; Jimin JANG ; Jooyeon LEE ; Hyosin BAEK ; Jaehyun PARK ; Sang-Ryul CHA ; Se Bi LEE ; Sunghun NA ; Jae-Woo KWON ; Young Jun PARK ; Myeong Jun CHOI ; Kye-Seong KIM ; Seok-Ho HONG ; Se-Ran YANG
International Journal of Stem Cells 2023;16(4):448-449
2.Barriers to Effective Communication about Advance Care Planning and Palliative Care:A Qualitative Study
Hyosin KIM ; Signe Peterson FLIEGER
Korean Journal of Hospice and Palliative Care 2023;26(2):42-50
Purpose:
The purpose of this study was to identify barriers to effective conversations about advance care planning (ACP) and palliative care reported by health care and communitybased service providers in Massachusetts, USA.
Methods:
This qualitative research analyzed open-ended responses to two survey questions, inquiring about perceived barriers to having conversations about ACP and palliative care with patients and consumers. Data were collected between November 2017 and June 2019 from nine organizations in Massachusetts, including health care provider organizations, health insurers, community-based organizations, and a nursing education institution. Two researchers reviewed and coded the responses and identified common themes inductively. Results: Across 142 responses, primary barriers to ACP included hesitation and lack of understanding and knowledge, discomfort and resistance among service providers, lack of staff knowledge, difficulties with followup, and differences in ACP policies across regions. Common barriers to palliative care were misconceptions about palliative care and lack of knowledge, service providers’ lack of preparedness, and limited policy support and availability. Challenges relevant to both ACP and palliative care were fear and discomfort around serious illness discussions, lack of knowledge and awareness, discussions that occur too late, and cultural and language barriers.
Conclusion
Health care practitioners and community-based professionals reported consumer-, service provider-, and system-level barriers to facilitating conversations about ACP and palliative care with patients experiencing serious illness. There is a need for more tools and support to strengthen service providers’ ACP and palliative care competencies and to promote a structured approach to health care planning conversations.
3.Reduced receptor for advanced glycation end products is associated with α-SMA expression in patients with idiopathic pulmonary fibrosis and mice
Hyosin BAEK ; Soojin JANG ; Jaehyun PARK ; Jimin JANG ; Jooyeon LEE ; Seok-Ho HONG ; Woo Jin KIM ; Sung-Min PARK ; Se-Ran YANG
Laboratory Animal Research 2021;37(4):277-284
Background:
Idiopathic pulmonary fibrosis (IPF) is a chronic and progressive interstitial lung disease. Despite alveolar epithelial cells is crucial role in lung, its contribution and the associated biomarker remain unknown in the pathogenesis of IPF. Recently, environmental factors including stone dust, silica and cigarette smoking were found as risk factors involved in IPF. Receptor for advanced glycation end products (RAGE) is a member of the immunoglobulin super family of cell surface receptors. It has been shown that interaction between RAGE and its ligands on immune cells mediates cellular migration and regulation of pro-inflammation. RAGE is highly expressed in the lung, in particular, alveolar epithelial cells. Therefore, we determined whether RAGE expression is associated with fibrosis-associated genes in patients with IPF and mice.
Results:
When bleomycin (BLM) was intratracheally administered to C57BL/6 mice for 1, 2 weeks, macrophage and neutrophils were significantly increased. The fibrotic nodule formed and accumulation of collagen was determined after BLM injection in H&E- and Masson’s trichrome staining. Levels of elastin, Col1a1 and fibronectin were increased in quantitative real-time PCR and protein levels of α-SMA was increased in western blot analysis. In the lung tissues of 1 mg/kg BLM-induced mice, RAGE expression was gradually decreased in 1- and 2 weeks in immunohistochemistry and western blot analysis, and 3 mg/kg of BLM-induced mice exhibited decreased RAGE levels while α-SMA expression was increased. We next determined RAGE expression in the lungs of IPF patients using immunohistochemistry.As a result, RAGE expression was decreased, while α-SMA expression was increased compared with non-IPF subjects.
Conclusions
Our findings suggest that reduced RAGE was associated with increased fibrotic genes in BLM-induced mice and patients with IPF. Therefore, RAGE could be applied with a biomarker for prognosis and diagnosis in the pathogenesis of IPF.

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