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Gyu Lee Kim,Seung Hun Lee,Yun Jin Kim,Jeong Gyu Lee,Yu Hyeon Yi,Young Jin Tak,Young Jin Ra,Sang Yeoup Lee,Young Hye Cho,Eun Ju Park,Young In Lee,Jung In Choi,Sae Rom Lee,Ryuk Jun Kwon,Soo Min Son Korean Society for Hospice and Palliative Care 2023 한국호스피스.완화의료학회지 Vol.26 No.2
Purpose: For the dignity of patients nearing the end of their lives, it is essential to provide end-of-life (EoL) care in a separate, dedicated space. This study investigated the utilization of specialized rooms for dying patients within a hospice unit. Methods: This retrospective study examined patients who died in a single hospice unit between January 1, 2017, and December 31, 2021. Utilizing medical records, we analyzed the circumstances surrounding death, the employment of specialized rooms for terminally ill patients, and the characteristics of those who received EoL care in a shared room. Results: During the 1,825-day survey period, deaths occurred on 632 days, and 799 patients died. Of these patients, 496 (62.1%) received EoL care in a dedicated room. The average duration of using this dedicated space was 1.08 days. Meanwhile, 188 patients (23.5%) died in a shared room. Logistic regression analysis revealed that a longer stay in the hospice unit was associated with a lower risk of receiving EoL care in a shared room (odds ratio [OR]=0.98, 95% confidence interval [CI] 0.97~0.99; P=0.002). Furthermore, a higher number of deaths on the day a patient died was associated with a greater risk of receiving EoL care in a shared room (OR=1.66, 95% CI 1.33~2.08; P<0.001). Conclusion: To ensure that more patients receive EoL care for an adequate duration in a private setting, additional research is necessary to increase the number of dedicated rooms and incorporate them into the hospice unit at an early stage.
Prediction of the Shelf-Life of Chilled Foods at Various Temperatures
( Sae Rom Park ),( Yu Si Lee ),( Ji Hyoung Ha ),( Ki Hwan Park ),( Sook Yeon Lee ),( Youn Ju Choi ),( Dong Ho Lee ),( Sun Hee Park ),( Kyung Ryu ),( Hyoung Soo Shin ),( Dong Ho Bae ),( Ae Jung Kim ),( 한국응용생명화학회 2008 Applied Biological Chemistry (Appl Biol Chem) Vol.51 No.4
Bioactivities of the Herb Extracts Used for Gamhongroju, a Korean Liqueur
Lee, Sae-Rom,Jung, Ha-Na,Cho, Hyunn-Ho,Jhin, Chang-Ho,Hwang, Keum-Taek,Jeong, Seok-Tae,Kim, Tae-Young The Korean Society of Food Science and Nutrition 2011 Preventive Nutrition and Food Science Vol.16 No.4
In this study, antioxidative and anti-inflammatory activities of the herb (cinnamon, clove, glehnia root, ginger, violet-root cromwell, licorice, citrus peel and longan) extracts used for gamhongroju, one of the popular liqueurs in Korea, were investigated. Twenty grams of individual herbs were extracted in 60% purified ethanol and freeze-dried. A mixture of the individual herb extracts (HEM) was separately prepared. Cytotoxicity of the individual extracts and HEM on murine RAW264.7 macrophage cells were examined along with their recovering activity on $H_2O_2$-treated RAW264.7 cells. Antioxidant and anti-inflammatory activities of the extract-treated cells were determined by measuring superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities, and Trolox equivalent antioxidant capacity (TEAC), nitric oxide (NO) and prostaglandin E2 (PGE2) levels. Violet-root cromwell extract showed the least cytotoxicity in terms of treated concentration. Most of the extracts, below levels of cytotoxicity, recovered the $H_2O_2$-treated cells. Treatment with some of the extracts increased SOD and GPx activities and TEAC levels while a majority inhibited the production of NO and PGE2 in lipopolysaccharide (LPS)-treated cells.
Function of NADPH Oxidases in Diabetic Nephropathy and Development of Nox Inhibitors
( Sae Rom Lee ),( Eun Jung An ),( Jaesang Kim ),( Yun Soo Bae ) 한국응용약물학회 2020 Biomolecules & Therapeutics(구 응용약물학회지) Vol.28 No.1
Several recent studies have reported that reactive oxygen species (ROS), superoxide anion and hydrogen peroxide (H2O2), play important roles in various cellular signaling networks. NADPH oxidase (Nox) isozymes have been shown to mediate receptormediated ROS generation for physiological signaling processes involved in cell growth, differentiation, apoptosis, and fibrosis. Detectable intracellular levels of ROS can be induced by the electron leakage from mitochondrial respiratory chain as well as by activation of cytochrome p450, glucose oxidase and xanthine oxidase, leading to oxidative stress. The up-regulation and the hyper-activation of NADPH oxidases (Nox) also likely contribute to oxidative stress in pathophysiologic stages. Elevation of the renal ROS level through hyperglycemia-mediated Nox activation results in the oxidative stress which induces a damage to kidney tissues, causing to diabetic nephropathy (DN). Nox inhibitors are currently being developed as the therapeutics of DN. In this review, we summarize Nox-mediated ROS generation and development of Nox inhibitors for therapeutics of DN treatment.
Lee, Sae Rom,Cho, Jae Min,Son, Minji,Park, Myung-June,Yong Kim, Woon,Kim, Sang Yob,Bae, Jong Wook Elsevier 2018 Chemical Engineering Journal Vol.331 No.-
<P><B>Abstract</B></P> <P>Selective hydrodechlorination (HDC) of trichloromethane (TCM, CHCl<SUB>3</SUB>) to dichloromethane (DCM, CH<SUB>2</SUB>Cl<SUB>2</SUB>) was studied on the mesoporous bimetallic Pt-Pd/KIT-6 to verify the roles of the active bimetals to catalytic activity and product distribution. The optimal bimetal ratio of 2wt%Pt-0.05wt%Pd on the highly ordered mesoporous KIT-6 calcined at 400°C showed a maximum TCM conversion with DCM yield, and the optimal calcination temperature of Pt-Pd/KIT-6 was mainly responsible for the formation of homogeneously and closely distributed smaller Pt-Pd nanoparticles with higher oxidation states of Pt crystallites supported by XPS and EXAFS analysis. Based on the proposed kinetic models on the optimal Pt-Pd/KIT-6, the competitive reaction mechanisms of the formations of CH<SUB>4</SUB> and monochloromethane (MCM, CH<SUB>3</SUB>Cl) from DCM intermediate can well explain the product distributions. Using the seven different kinetic models, the best model on the basis of the Akaike’s Information Criteria showed the activation energies of the HDC of TCM to be in the range of 18–60kJ/mol. The kinetic model also revealed the inverse relationship between the conversion of TCM and selectivity to DCM. Either an increase of space velocity or decrease of H<SUB>2</SUB>/TCM ratio increased the DCM yield, while there existed the optimal operating conditions. The DCM productivity of 1.5mol-DCM/(g<SUB>cat</SUB>·h) was achievable at the highest space velocity and lowest H<SUB>2</SUB>/TCM ratio under a specific reaction condition of 190°C and 0.1MPa.</P> <P><B>Highlights</B></P> <P> <UL> <LI> HDC of TCM to DCM was studied on the mesoporous 2wt%Pt-0.05wt%Pd/KIT-6. </LI> <LI> At an optimal calcination T=400°C, a maximum DCM yield was obtained. </LI> <LI> Close interactions of smaller Pt-Pd nanoparticles with higher oxidation states are beneficial for a higher DCM yield. </LI> <LI> The kinetic model based on LHHW was well fitted with experimental results. </LI> <LI> Higher DCM productivity was achievable at the highest SV and lowest H<SUB>2</SUB>/TCM ratio. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Vaccine Storage Practices and the Effects of Education in Some Private Medical Institutions
Lee, Sae-Rom,Lim, Hyun-Sul,Kim, Oh-Yon,Nam, Jeong-Gyeong,Kim, Yeong-Sun,Woo, Hyung-Rae,Noh, Woo-Jin,Kim, Kye-Nam The Korean Society for Preventive Medicine 2012 Journal of Preventive Medicine and Public Health Vol.45 No.2
Objectives: Although vaccination rates have increased, problems still remain in the storage and handling of vaccines. This study focused on inspecting actual vaccine storage status and awareness, and comparing them before and after education was provided. Methods: In the primary inspection, a status survey checklist was completed by visual inspection. A questionnaire on the awareness of proper vaccine storage and handling was also administered to vaccine administrators in private medical institutions in 4 regions in Gyeongsangbuk-province. One-on-one education was then carried out, and our self-produced manual on safe vaccine storage and management methods was provided. In the secondary inspection, the investigators visited the same medical institutions and used the same questionnaire and checklist used during the primary inspection. The results before and after education were compared, by treating each appropriate answer as 1 point. Results: The average checklists score was 9.74 (out of 15 points), which increased significantly after education was provided (by 0.84, p<0.001). The participants demonstrated improved practices in recording storage temperatures(p=0.016), storing vaccines in the center of the refrigerator (p=0.004), storing vaccines with other medication and nonmedical items (p=0.031) after education. The average score calculated from the questionnaires was 10.48 (out of 14points), which increased after education (by 1.03, p<0.001). Conclusions: This study suggests that vaccine storage practices and awareness are inadequate, but can be partially improved by providing relevant education. Repetitive education and policy-making are required to store vaccines safely because one-off education and unenforced guidelines offer limited efficacy.