http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Preparation of acrylic copolymers and crosslinking agents and properties as a film
Yoo, Youngjae,Hong, Geun-Hye,Hur, Soon-Ryoung,Kim, Yong Seok,Lee, Sung-Goo,Kim, Hyung-Joong,Lee, Jae Heung Wiley Subscription Services, Inc., A Wiley Company 2009 Journal of applied polymer science Vol.112 No.3
<P>Copolymers of butyl acrylate (BA)-methyl methacrylate (MMA)-acrylic acid (AA) and intraparticle crosslinking agents containing N-methylol acrylamide (NMA) and ethylene glycol dimethacrylate (EGDMA) were prepared by emulsion copolymerization. After that, films were prepared from the mixture of copolymers and the interparticle crosslinking agents. The interparticle crosslinking agents were prepared from hexamethylene diisocyanate and aziridine ethanol. Mixtures of the copolymer and the interparticle crosslinking agent were cast to films and crosslinked in a convection oven. The effects of the contents of the intra/interparticle crosslinking agents were also evaluated. By increasing the contents of EGDMA, roughness of the films was increased because of the effects of EGDMA acting as an intraparticle crosslinking agent. By increasing the contents of the interparticle crosslinking agent, roughness was also increased by the reaction between the copolymers and interparticle crosslinking agent. Tensile strength and water and chemical resistance of the film were increased, whereas elongation of film was decreased by increasing the contents of interparticle crosslinking agents. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009</P>
Efficacy of an Injectable Thermosensitive Gel on Postoperative Adhesion in Rat Model
Hye Seong Ahn,Hyuk-Joon Lee,Moon-Won Yoo,Sang-Ho Jeong,Tae-Su Han,Woo-Ho Kim,Soo-Chang Song,Han-Kwang Yang 대한외과학회 2010 Annals of Surgical Treatment and Research(ASRT) Vol.79 No.4
Purpose: For easy application to targeted area or in laparoscopic surgery, proper injectable antiadhesive agents are needed. The efficacy of two injectable antiadhesive agents- the thermosensitive poly (organophosphazene) hydrogel (Gel group) and a mixed solution of hyaluronate and carboxymethyl cellulose (Guardix-sol<SUP>ⓡ</SUP>, Hanmi Medicare, Korea; Gd group) were compared with that of a positive control (one established membranous agent [Interceed<SUP>ⓡ</SUP>, Johnson & Johnson, USA; IC group]) and negative control (phosphate buffered saline, control group). Methods: Eight ischemic buttons were created on both sides of the peritoneum in twenty-four male Sprague Dawley rats. Each of the solutions, or membrane agent was applied before closing of the wound according to groups (six rats per group). Two rats in the IC group were excluded because of death or intraoperative bleeding. Animals were sacrificed at two or four weeks after surgery. The number of adhesion-forming ischemic buttons and the weight gain were analyzed. Results: The overall number of adhered ischemic buttons were 23 in the control group (n=48), 22 in the Gd group (n=48), 14 in the Gel group (n=48) and 0 in the IC group (n=32). Overall number of adhered ischemic buttons of the Gd group was not significantly different from that of the control group (P=1.000). However that of the Gel group was smaller than that of the control group, although not statistically significant (P=0.093). Conclusion: The Gel group demonstrated some possibility of having an antiadhesive effect, and the Gd group failed to show antiadhesive effect, in contrast to IC group. A large-scale preclinical study is required to verify these findings.
Influences of Chronic Shoulder Pain on Muscle Tone Changes in Trunk Muscles
Hye Mi Jeon,Yoo Rim Choi,Si Eun Park,Ho Jung An,Sang Bin Lee,Wan Suk Choi,Nyeon Jun Kim,Hee Kyoung Kim,Mi Jung Kim,Soon Hee Kim 국제물리치료학회 2013 Journal of International Academy of Physical Ther Vol.4 No.1
The purpose of this study was to examine the influences of chronic shoulder pain on the muscle tone in trunk muscles. The study's subjects were 40 men and women in their 30 to 50s, which were divided into two groups. A chronic shoulder pain group consisted of 20 subjects who had been diagnosed with chronic shoulder pain by doctors, and a painless group consisted of 20 subjects who had experienced no such pain. An analysis was performed using electromyography on the muscle tone in the rectus abdominalis, external oblique, internal oblique, and erector spinae muscles under the same conditions between the two groups. The analysis results were as follows. The chronic shoulder pain group exhibited an overall high level of trunk muscle tone than the painless group, along with a statistically significant difference in the rectus abdominalis(p<.05). Moreover, the chronic shoulder pain group showed differences in the trunk muscle tone depending on the affected side. The chronic left shoulder pain group yielded higher levels of muscle tone in the right-side trunk muscles. In particular, the group revealed statistically significant differences in the rectus abdominalis and internal oblique(p<.05). The chronic right shoulder pain group exhibited higher levels of muscle tone in the left-side trunk muscles with a statistically significant difference in the internal oblique(p<.05). The above results suggested that chronic shoulder pain influences increases in the muscle tone in the trunk muscles on the opposite side to the affected shoulder.
Multiple endocrine neoplasia type 1 with anterior mediastinal parathyroid adenoma
Hye Lim Park,Ie Ryung Yoo,Sung Hoon Kim,Sohee Lee 대한외과학회 2016 Annals of Surgical Treatment and Research(ASRT) Vol.91 No.6
The most common manifestation of multiple endocrine neoplasia type 1 (MEN1) is hyperparathyroidism. Treatment of hyperparathyroidism in MEN patients is surgical removal of the parathyroid glands, however ectopic parathyroid gland is challenging for treatment. A 51-year-old female, the eldest of 3 MEN1 sisters, had hyperparathyroidism with ectopic parathyroid adenoma in the mediastinal para-aortic region, which was detected by technetium-99m (Tc-99m) sestamibi scintigraphy and single-photon emission computed tomography/computed tomography (SPECT/CT). She underwent total parathyroidectomy with video-assisted thoracoscopic surgery on an anterior mediastinal mass. Anterior mediastinal parathyroid adenoma in MEN1 patients is rare. Precise localization of an ectopic parathyroid gland with Tc-99m sestamibi SPECT/CT can lead to successful treatment of hyperparathyroidism. This is the first reported case in the literature of mediastinal parathyroid adenoma in MEN1 patient visualized by Tc-99m sestamibi SPECT/CT.
Sang-Hee Kwon,Seong-A Ju,Ji-Hye Kang,Chu-Sook Kim,Hyeon-Mi Yoo,Rina Yu 대한지역사회영양학회 2008 Nutrition Research and Practice Vol.2 No.2
Atherosclerosis is characterized by a chronic inflammatory disease, and chemokines play an important role in both initiation and progression of atherosclerosis development. Leukotactin-1 (Lkn-1/CCL15), a new member of the human CC chemokine family, is a potent chemoattractant for leukocytes. Our previous study has demonstrated that Lkn-1/CCL15 plays a role in the initiation of atherosclerosis, however, little is currently known whether Lkn-1/CCL15 is associated with the progression of atherosclerosis. Matrix metalloproteinases (MMPs) in human coronary atherosclerotic lesions play a crucial role in the progression of atherosclerosis by altering the vulnerability of plaque rupture. In the present study, we examined whether Lkn-1/CCL15 modulates MMP-9 release, which is a prevalent form expressed by activated macrophages and foam cells. Human THP-1 monocytic cells and/or human peripheral blood monocytes (PBMC) were treated with phorbol myristate acetate to induce their differentiation into macrophages. Foam cells were prepared by the treatment of THP-1 macrophages with human oxidized LDL. The macrophages and foam cells were treated with Lkn-1/CCL15, and the levels of MMP-9 release were measured by Gelatin Zymography. Lkn-1/CCL15 significantly enhanced the levels of MMP-9 protein secretion from THP-1 monocytic cells-derived macrophages, human PBMC-derived macrophages, as well as macrophage-derived foam cell in a dose dependent manner. Our data suggest that the action of Lkn-1/CCL15 on macrophages and foam cells to release MMP-9 may contribute to plaque destabilization in the progression of atherosclerosis.
Flavonoids with Bradykinin Antagonistic Effects from Scutellariae Radix
Hye Sook Yun-Choi,Kyung Sook Yoo,Sung Hyun Chung,Hyun Sook Yang,Jin Jae Choi,Young Joo Kim 한국생약학회 1993 생약학회지 Vol.23 No.4
Seven flavonoid components were isolated from fr. C of Scutellariae radix which showed antagonistic effects against bradykinin(BK). The results indicated that two oxygen functions (either -OH or -OCH₃) at 2`- and 6`-positions and/or an oxygen function at 6-position of flavone seemed to be favored for the BK inhibitory activities. Skullcapflavone-II(IV) which contains 6-OCH₃, 2`-OH and 6`-OCH₃ in the structure was the most active among the tiavones tested.
Lack of Haptic Feedback Is Replaced by More Developed Visual Sense during Robotic Myomectomy
Hye-Sung Moon,Eunhye Cho,Hae Kyung Yoo 이화여자대학교 의과학연구소 2019 EMJ (Ewha medical journal) Vol.42 No.2
In the reproductive age, many women have several uterine myomas and present with abnormal uterine bleeding, dysmenorrhea, and occasionally infertility. There are three surgical approaches to perform myomectomy, including robotic-assisted, laparoscopic, and abdominal myomectomy. Compared to laparoscopic procedures, robotic myomectomy allows free approach of myoma bases using fine instruments and endoscopes. Fine uterine wall sutures can be performed layer-by-layer with robots. However, robotic surgery is difficult to perform because there is no sense of touch during the operation. We report two clinical myomectomy cases with replaced lack of haptic feedback during robot surgery. The patients received robotic myomectomy with/without right ovarian cystectomy and adhesiolysis. Sixty-five leiomyomas were removed in case 1. Forty-six leiomyomas were removed in case 2. Lack of haptic feedback is replaced by more developed visual sense during robot myomectomy of multiple tiny intramural myomas, and robotic surgery can be performed much more effectively even in complicated cases.