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Lee, Hyebin,Kim, Kwangsoo,Woo, Jongmin,Park, Joonho,Kim, Hyeyoon,Lee, Kyung Eun,Kim, Hyeyeon,Kim, Youngsoo,Moon, Kyung Chul,Kim, Ji Young,Park, In Ae,Shim, Bo Bae,Moon, Ji Hye,Han, Dohyun,Ryu, Han Suk American Society for Biochemistry and Molecular Bi 2018 Molecular and Cellular Proteomics Vol.17 No.9
<P>Cytological examination of urine is the most widely used noninvasive pathologic screen for bladder urothelial carcinoma (BLCA); however, inadequate diagnostic accuracy remains a major challenge. We performed mass spectrometry-based proteomic analysis of urine samples of ten patients with BLCA and ten paired patients with benign urothelial lesion (BUL) to identify ancillary proteomic markers for use in liquid-based cytology (LBC). A total of 4,839 proteins were identified and 112 proteins were confirmed as expressed at significantly different levels between the two groups. We also performed an independent proteomic profiling of tumor tissue samples where we identified 7,916 proteins of which 758 were differentially expressed. Cross-platform comparisons of these data with comparative mRNA expression profiles from The Cancer Genome Atlas identified four putative candidate proteins, AHNAK, EPPK1, MYH14 and OLFM4. To determine their immunocytochemical expression levels in LBC, we examined protein expression data from The Human Protein Atlas and in-house FFPE samples. We further investigated the expression of the four candidate proteins in urine cytology samples from two independent validation cohorts. These analyses revealed AHNAK as a unique intracellular protein differing in immunohistochemical expression and subcellular localization between tumor and non-tumor cells. In conclusion, this study identified a new biomarker, AHNAK, applicable to discrimination between BLCA and BUL by LBC. To our knowledge, the present study provides the first identification of a clinical biomarker for LBC based on in-depth proteomics.</P>
Subjective Experience on Virtual Reality-Assisted Mental Health Promotion Program
Hyebin Ko,Hyun Ju Lim,Jeonghyun Park,Kyungwon Kim,Hwagyu Suh,Byung Dae Lee,Young Min Lee,Eunsoo Moon,Du-Ri Kim,Jong-Hwan Park,Myung-Jun Shin,Yean-Hwa Lee 대한신경정신의학회 2024 PSYCHIATRY INVESTIGATION Vol.21 No.4
Objective Mental health promotion programs using virtual reality (VR) technology have been developed in various forms. This study aimed to investigate the subjective experience of a VR-assisted mental health promotion program for the community population, which was provided in the form of VR experience on a bus to increase accessibility.Methods Ninety-six people participated in this study. The relationship between the subjective experience and mental health states such as depression, anxiety, perceived stress, and quality of life was explored. The subjective experience on depression and stress before and after VR program treatment was compared using the Wilcoxon signed-rank test. The satisfaction with the VR-assisted mental health promotion program was examined after using the VR program.Results The VR-assisted mental health promotion program on a bus significantly improved subjective symptoms such as depression (p=0.036) and perceived stress (p=0.010) among all the participants. Among the high-risk group, this VR program significantly relieved subjective depressive feeling score (p=0.033), and subjective stressful feeling score (p=0.035). In contrast, there were no significant changes in subjective depressive feelings (p=0.182) and subjective stressful feelings (p=0.058) among the healthy group. Seventy-two percent of the participants reported a high level of satisfaction, scoring 80 points or more.Conclusion The findings of this study suggest that the VR-assisted mental health promotion program may effectively improve the subjective depressive and stressful feelings. The use of VR programs on buses to increase of accessibility for the community could be a useful approach for promoting mental health among the population.
Hyebin Lee,Hee Chul Park,Won Park,Doo Ho Choi,Young-Il Kim,Young Suk Park,Joon Oh Park,Ho-Kyung Chun,Woo-Yong Lee,Hee Cheol Kim,Seong Hyeon Yun,Yong Beom Cho,Yoon Ah Park 대한방사선종양학회 2012 Radiation Oncology Journal Vol.30 No.3
Purpose: Although anemia is considered to be a contributor to intra-tumoral hypoxia and tumor resistance to ionizing radiation in cancer patients, the impact of pretreatment anemia on local control after neoadjuvant concurrent chemoradiotherapy (NACRT) and surgery for rectal cancer remains unclear. Materials and Methods: We reviewed the records of 247 patients with locally advanced rectal cancer who were treated with NACRT followed by curative-intent surgery. Results: The patients with anemia before NACRT (36.0%, 89/247) achieved less pathologic complete response (pCR) than those without anemia (p = 0.012). The patients with pretreatment anemia had worse 3-year local control than those without pretreatment anemia (86.0% vs. 95.7%, p = 0.005). Multivariate analysis showed that pretreatment anemia (p = 0.035), pathologic tumor and nodal stage (p = 0.020 and 0.032, respectively) were independently significant factors for local control. Conclusion: Pretreatment anemia had negative impacts on pCR and local control among patients who underwent NACRT and surgery for rectal cancer. Strategies maintaining hemoglobin level within normal range could potentially be used to improve local control in rectal cancer patients.
Kim, Hyebin,Hong, Jungyun,Kim, Chaewon,Shin, Eul-Yong,Lee, Mijung,Noh, Yong-Young,Park, Byoungchoo,Hwang, Inchan American Chemical Society 2018 The Journal of Physical Chemistry Part C Vol.122 No.29
<P>Surface energy is a key factor in controlling the kinetics of nucleation and growth of perovskite, which are crucial for the formation of high quality films and the photovoltaic efficiency of solar cells. It has been reported that substrate wettability and perovskite grain size are to be compromised with necessity, as promoted heterogeneous nucleation that occurs on a hydrophilic surface reduces the grain size for a two-step deposition method. Herein, the increase in grain size on hydrophilic surfaces in the presence of hydroxyl groups and the direct correlation between the perovskite grain formation and photovoltaic performance are investigated. The surface energy of the hole transport layer in planar p-i-n type perovskite solar cells is modulated by the introduction of polymer surfactant additive, poly(ethylene glycol) tridecyl ether (PTE). Perovskite films deposited on a hydrophilic surface by a two-step method contain small grain size, leading to a reduction in photovoltaic performance. In contrast, surface hydroxyl groups were found to induce the preferential (110) orientation and large grain size in the perovskite films deposited by means of a one-step method. Nucleation and growth mechanisms are proposed to explain those different behaviors of the dependence of grain size on surface energy. The enlarged perovskite grains on hydrophilic surfaces lead to an efficiency improvement owing to an increase in the short-circuit current and fill factor. Our study highlights that the grain size increase and high crystallinity can be achieved even with accelerated heterogeneous nucleation on a hydrophilic substrate surface.</P> [FIG OMISSION]</BR>