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황규성,부진후 동의공업대학 1999 論文集 Vol.25 No.1
In considering a seated posture, the important object is to suspend the body weight and to preserve a status of whole body. The study was conducted the discomfort of muscle by physical characteristic of existed office chairs(A, B, C, T-type) using EMG, which is used one of objective evaluation method. The measured muscles are trapezoids, T10-latissimus dorsi, L3-latissimus dorsi, and semimembranous. According to results of experiment, a chair that was not designed fit gives more fatigue to w. ist muscle (L3-1atissimus dorsi) and leg muscle(semimembranous) than other.
Hwang, Eunson,Sun, Zheng-Wang,Lee, Taek Hwan,Shin, Heon-Sub,Park, Sang-Yong,Lee, Don-Gil,Cho, Byung-Goo,Sohn, Hyunjoo,Kwon, Oh Wook,Kim, Sun Yeou,Yi, Tae Hoo The Korean Society of Ginseng 2013 Journal of Ginseng Research Vol.37 No.4
UV irradiation is the main factor contributing to skin damages that are associated with an excessive production of matrix-degrading metalloproteinase (MMP)-1 and a deficient expression of collagens. To date, red ginseng has been revealed to possess many biomedical effects, such as anti-aging, anti-oxidation, and anti-inflammatory. In this study, we prepared the Korean Red Ginseng extracts treated with enzyme (KRGE) and investigated the effects of dietary KRGE on the formation of wrinkles generated by UVB irradiation in hairless mice. It was found that KRGE inhibited the UVB-induced formation of wrinkles, epidermal thickness, and skin dryness in hairless mice. Further results also showed that KRGE attenuated UVB-induced MMP-${\beta}$1 level, while accelerated procollagen type I, transforming growth factor-${\beta}$1 secretion. Interestingly, the expression of profilaggrin and filaggrin in both the epidermis and dermis were decreased due to UVB exposure and reversed by KRGE. The KRGE 0.06% was prior to KRGE 0.24%. In view of these results, which indicated that KRGE protected skin from UVB-induced photodamages, which may not only mediated by regulating of MMP-1 and procollagen type I, but also by increasing the production of profilaggrin and filaggrin. In conclusion, our results suggest that KRGE may be a promising agent for the treatment of skin photodamages. The challenge of KRGE will be expected as cosmeceuticals and nutraceuticals in order to intervene in aging-related degenerative skin changes.
Sung-Sil Park,진성호,Kyu-Jae Lee,Sung-Ho Jin,Sun Hoo Park,방호윤,Hwang-Jong Yu,Jong-Inn Lee 대한위암학회 2012 Journal of gastric cancer Vol.12 No.3
Purpose: Although serosal invasion is a critical predisposing factor for peritoneal dissemination in advanced gastric cancer, the accuracy of preoperative assessment using routine imaging studies is unsatisfactory. This study was conducted to identify high-risk group for serosal invasion using preoperative factors in patients with advanced gastric cancer. Materials and Methods: We retrospectively analyzed clinicopathological features of 3,529 advanced gastric cancer patients with Borrmann type I/II/III who underwent gastrectomy at Korea Cancer Center Hospital between 1991 and 2005. We stratified patients into low- (≤40%), intermediate- (40~70%), and high-risk (>70%) groups, according to the probability of serosal invasion. Results: Borrmann type, size, longitudinal and circumferential location, and histology of tumors were independent risk factors for serosal invasion. Most tumors of whole stomach location or encircling type had serosal invasion, so they belonged to high-risk group. Patients were subdivided into 12 subgroups in combination of Borrmann type, size, and histology. A subgroup with Borrmann type II, large size (≥7 cm), and undifferentiated histology and 2 subgroups with Borrmann type III, large size, and regardless of histology belonged to high-risk group and corresponded to 25% of eligible patients. Conclusions: This study have documented high-risk group for serosal invasion using preoperative predictors. And risk stratification for serosal invasion through the combination with imaging studies may collaboratively improve the accuracy of preoperative assessment, reduce the number