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Escherichia coli 패혈증 환자에 합병된 대칭적 하지 말단 괴사증 1예
남해성,유진홍,권순석,민준기,조현선,박민경,심병주,남유정,이지인,김진수,길욱현,조근종,신완식 대한감염학회 2005 감염과 화학요법 Vol.37 No.6
We have encountered a rare case of symmetrical peripheral gangrene complicating Escherichia coli sepsis in a 47-years-old male. He was successfully treated with antibiotics, anticoagulants, and vasodilator. To our knowledge, this is the first report on symmetrical peripheral gangrene complicating E. coli sepsis in Korea.
Lee, DJoohyeong,Shin, Hyeji,Lee, Wonyou,Lee, Seung Tae,Lee, Geun-Shik,Hyun, Sang-Hwan,Lee, Eunsong The Korean Society of Veterinary Science 2017 大韓獸醫學會誌 Vol.57 No.2
This study was conducted to determine the effects of biophoton treatment during in vitro maturation (IVM) and/or in vitro culture (IVC) on oocyte maturation and embryonic development in pigs. An apparatus capable of generating homogeneous biophoton energy emissions was placed in an incubator. Initially, immature pig oocytes were matured in the biophoton-equipped incubator in medium 199 supplemented with cysteine, epidermal growth factor, insulin, and gonadotrophic hormones for 22 h, after which they were matured in hormone-free medium for an additional 22 hr. Next, IVM oocytes were induced for parthenogenesis (PA) or provided as cytoplasts for somatic cell nuclear transfer (SCNT). Treatment of oocytes with biophoton energy during IVM did not improve cumulus cell expansion, nuclear maturation, intraoocyte glutathione content, or mitochondrial distribution of oocytes. However, biophoton-treated oocytes showed higher (p < 0.05) blastocyst formation after PA than that in untreated oocytes (50.7% vs. 42.7%). In an additional experiment, SCNT embryos produced from biophoton-treated oocytes showed a greater (p < 0.05) number of cells in blastocysts (52.6 vs. 43.9) than that in untreated oocytes. Taken together, our results demonstrate that biophoton treatment during IVM improves developmental competence of PA- and SCNT-derived embryos.
Lee, Joohyeong,Lee, Yongjin,Jung, Hae Hong,Lee, Seung Tae,Lee, Geun-Shik,Lee, Eunsong The Korean Society of Embryo Transfer 2018 한국동물생명공학회지 Vol.33 No.4
The osmolarity of a medium that is commonly used for in vitro culture (IVC) of oocytes and embryos is lower than that of oviductal fluid in pigs. In vivo oocytes and embryos can resist high osmolarities to some extent due to the presence of organic osmolytes such as glycine and alanine. These amino acids act as a protective shield to maintain the shape and viability in high osmotic environments. The aim of this study was to determine the effects of glycine or/and alanine in medium with two different osmolarities (280 and 320 mOsm) during IVC on embryonic development after parthenogenesis (PA) and somatic cell nuclear transfer (SCNT) in pigs. To this end, IVC was divided into two stages; the 0-2 and 3-7 days of IVC. In each stage, embryos were cultured in medium with 280, 320, or 360 mOsm and their combinations with or without glycine or/and alanine according to the experimental design. Treatment groups were termed as, for example, "T(osmolarity of a medium used in 0-2 days of IVC)-(osmolarity of a medium used in 3-7 days of IVC)" T280-280 was served as control. When PA embryos were cultured in medium with various osmolarities, T320-280 showed a significantly higher blastocyst formation (29.0%) than control (22.2%) and T360-360 groups (6.9%). Glycine treatment in T320-280 significantly increased blastocyst formation (50.4%) compared to T320-280 only (36.5%) while no synergistic was observed after treatment with glycine and alanine together in T320-280 (45.7%). In contrast to PA embryonic development, the stimulating effect by the culture in T320-280 was not observed in SCNT blastocyst development (27.6% and 23.7% in T280-280 and T320-280, respectively) whereas the number of inner cell mass cells was significantly increased in T320-280 (6.1 cells vs. 9.6 cells). Glycine treatment significantly improved blastocyst formation of SCNT embryos in both T280-280 (27.6% vs. 38.0%) and T320-280 (23.7% vs. 35.3%). Our results demonstrate that IVC in T320-280 and treatment with glycine improves blastocyst formation of PA and SCNT embryos in pigs.
Geun-Shik Lee 충북대학교 동물의학연구소 2013 Journal of Biomedical and Translational Research Vol.14 No.4
Inflammation mainly mediated by innate immune cells as the first line of host defense against pathogens is an acute response that limits tissue damage and eliminates pathogens in the body. In triggering inflammation, several pattern recognition receptors work together; membrane-associated Toll-like receptors, c-type lectin receptors, retinoic acid-inducible gene-like helicase receptors, absent in melanoma-like receptors, and cytosolic nucleotide-binding domain and leucine-rich repeat receptors. Among them, inflammasome is a newly trigger of inflammation in response to exogenous and endogenous stimuli and its activation leads to the assembly of multiprotein platforms composed of NLRP3 (NOD-like receptor family, pyrin domain containing 3), ASC (apoptosis associated speck-like protein containing a CARD), and procaspase 1. Thus, the activated inflammasome activates caspase 1, resulting in processing and secretion of interleukin (IL)-1β. Recent emerging data suggest that dysregulated metabolites, i.e., amyloids, ceramides, and cholesterol crystals, have been classified as inflammasome activators. In addition, IL-1β may play a critical role in the pathogenesis of chronic inflammation-induced disorders such as Alzheimer’s diseases, type 2 diabetes, and atheriosclerosis. This review introduces the basic concept of inflammasome activation and auto-inflammatory diseases. In addition, it discusses the updated signaling models of inflammasome activation that link metabolic dysfunction in order to outline future therapeutic approaches to inflammasome-mediating diseases.
Lee, Geun-Shik,Kim, Hoe-Jin,Jung, Yong-Woo,Choi, Kyung-Chul,Jeung, Eui-Bae Oxford University Press 2005 TOXICOLOGICAL SCIENCES Vol.84 No.2
<P>It has been demonstrated in our previous studies that <I>Calbindin-D<SUB>9k</SUB></I> (<I>CaBP-9k</I>) is a potent biomarker for screening estrogen-like chemicals in the rat model. Although treatments with 17beta-estradiol (E2) and endocrine disrupting compounds resulted in the up-regulation of uterine CaBP-9k, the mechanism of <I>CaBP-9k</I> induction by these compounds through two subtypes of estrogen receptors (ERα and ERβ) is unclear. Thus, in the present study, immature rats were treated with propyl pyrazole triol (PPT, an ERα-selective ligand), diarylpropionitrile (DPN, an ERβ-selective ligand), E2, or dimethyl sulfoxide (DMSO, a vehicle control) for three days in order to clarify which subtype of ER is involved in the uterine <I>CaBP-9k</I> induction. Following injection with these ER ligands, uterine <I>CaBP-9k</I> expression was analyzed by Northern blot and immunoblot assays. Uterine <I>CaBP-9k</I> expression is mainly mediated by PPT in a dose- and time-dependent manner in immature rats, whereas no significant alteration of the uterine <I>CaBP-9k</I> gene was observed after DPN treatment. In addition, an estrogenicity of PPT in inducing <I>CaBP-9k</I> expression was completely blocked by the anti-estrogen ICI 182,780, implying that uterine <I>CaBP-9k</I> is solely induced by ERα. A single treatment with PPT rapidly increased the protein levels of ERα and PR, an E2-mediated gene, in these tissues. Taken together, these results indicate that uterine <I>CaBP-9k</I> is induced by E2 and endocrine disrupting chemicals via the ERα pathway, but not ERβ, in the uterus of immature rats.</P>