http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
A Case of Colonic Hypoganglionosis Complicated with Colonic Ulcers
Kyu-Man Cho,Sung-Uk Lim,Seon-Young Park,Kyung-Hwa Lee,Jae-Kyun Ju,Jong-Sun Rew 순천향대학교 순천향의학연구소 2015 Journal of Soonchunhyang Medical Science Vol.21 No.1
Hypoganglionosis is a rare form of intestinal neuronal malformation, which is characterized by reduced number and size of ganglion cells of parasympathetic nerves in the intestinal wall. Pathophysiology is not well known, however intestinal ischemia, inflammation, autoimmune process or neurotoxin may play a role. Here, we report the case of a 56-year-old man with colonic pseudoobstruction and ulcerations in marked dilatedcolon above transitional zone who was later diagnosed with colonic hypoganglionosis.
Analysis of Hanwoo Loin Proteome by 2-D Gel Electrophoresis and Peptide Mass Fingerprinting
Lim, Jin-Kyu,Pyo, Jae-Hoon,Lee, Hwa-Jin,Jung, Il-Jung,Park, Young-Sik,Yeo, Young-Kuen,Kim, Jeong-Sang The Korean Society of Food Science and Nutrition 2002 Preventive Nutrition and Food Science Vol.7 No.4
A proteomic map of Hanwoo loin was obtained using 2-D SDS-PAGE and mass spectrometric analysis: 27 bovine proteins plus 2 proteins having similarities to other mammal proteins out of 52 proteins analyzed. The identified proteins consisted of 50 % basic house keeping proteins involved in metabolism, 30% muscle proteins, and other miscellaneous proteins. Many proteins on the 2-D gel with different molecular weights and isoelectric points were identified as same proteins due to posttranslational modification. As many of the identified house keeping proteins showed the high sequence similarities to other mammal equivalent proteins, searching the mammal databases could confirm the annotation. The preliminary identification of the proteome in bovine loin tissue could reveal the functions of proteins at over 50 % of chance with high fidelities. Using the established loin proteome map, proteomic difference between 1 yr and 2 yr Hanwoo loin tissues were compared on 2D gel. Regardless of the difficulty normalizing protein concentrations and sample-to-sample variations, three unidentified proteins and myoglobin were selected as up-regulated proteins during the fat deposition period. This study contributes to a move thorough and holistic understanding of beef meat, helping to build the basis for future identification of new markers for good quality meat.
Lim, Soo,Shin, Hayley,Song, Jung Han,Kwak, Soo Heon,Kang, Seon Mee,Won Yoon, Ji,Choi, Sung Hee,Cho, Sung Il,Park, Kyong Soo,Lee, Hong Kyu,Jang, Hak Chul,Koh, Kwang Kon American Diabetes Association 2011 Diabetes care Vol.34 No.6
<P><B>OBJECTIVE</B></P><P>The number of people with metabolic syndrome is increasing worldwide, and changes in socioenvironmental factors contribute to this increase. Therefore, investigation of changes in metabolic syndrome and its components in South Korea, where rapid socioenvironmental changes have occurred in recent years, would be foundational in setting up an effective strategy for reducing this increasing trend.</P><P><B>RESEARCH DESIGN AND METHODS</B></P><P>We compared the prevalence and pattern of metabolic syndrome among participants in the Korean National Health and Nutrition Examination Surveys for 1998, 2001, 2005, and 2007. In each survey, stratified, multistage, probability–sampling designs and weighting adjustments were conducted to represent the entire Korean population. The revised National Cholesterol Education Program criteria were used as the definition of metabolic syndrome. All biochemical parameters were measured in a central laboratory.</P><P><B>RESULTS</B></P><P>A total of 6,907 (mean ± SE age 45.0 ± 0.2 years), 4,536 (45.5 ± 0.2), 5,373 (47.1 ± 0.2), and 2,890 (49.9 ± 0.3) Koreans over 20 years of age have participated in the studies in 1998, 2001, 2005, and 2007, respectively. The age-adjusted prevalence of metabolic syndrome increased significantly from 24.9% in 1998, 29.2% in 2001, and 30.4% in 2005 to 31.3% in 2007. Among the five components, the level of low HDL cholesterol increased the most, by 13.8% over the 10 years. Abdominal obesity and hypertriglyceridemia followed, with 8.7 and 4.9% increases, respectively.</P><P><B>CONCLUSIONS</B></P><P>Because dyslipidemia and abdominal obesity were major factors in increasing the prevalence of metabolic syndrome in Koreans for the past 10 years, lifestyle interventions should be conducted at the national level to reduce the burden and consequences of metabolic syndrome.</P>
Sung Min Lim,Na Kyoung Lee,Keun Kyu Park,Yoh Chang Yoon,Hyun Dong Paik 한국축산식품학회 2011 한국축산식품학회지 Vol.31 No.6
This study investigated the ACE-inhibitory effect of yogurt beverage fortified with hydrolysates as well as the suitability of hydrolysates as a nutraceutical additive to yogurt beverage. Three whey protein hydrolysates hydrolyzed by alcalase, protamex, and trypsin were each added to yogurt beverage at concentrations of 1.25, 2.5, and 5 mg/mL. Yogurt beverage fortified with 2.5 mg/mL of hydrolysates had 61-69% ACE-inhibitory activity, whereas yogurt beverage fortified with 5 mg/ mL of hydrolysates showed 74% ACE-inhibitory activity. There were no significant differences in ACE-inhibitory activity between the alcalase or protamex hydrolysates during storage; however, trypsin hydrolysate exhibited significant differences. On the other hand, physicochemical characteristics such as pH (3.47-3.77), titratable acidity (0.81-0.84%), colority, viable cell count, and sensory qualities were not significantly different among the tested yogurt beverage samples during storage. These results showed that yogurt beverage fortified with whey protein hydrolysates maintained antihypertensive activity and underwent no unfavorable changes in physicochemical characteristics regardless of enzyme type.
Lim, Jae Sung,Shin, Minsang,Kim, Hyun-Ju,Kim, Kyu Suk,Choy, Hyon E.,Cho, Kyung A. Oxford University Press 2014 The Journal of Infectious Diseases Vol.210 No.5
<P>Caveolar endocytosis has an important function in the cellular uptake of some bacterial toxins, viruses, and circulating proteins. However, the molecular machinery involved in caveolae-dependent bacterial endocytosis is poorly defined. In the present study, we identify a new molecular mechanism for the caveolin-1–dependent entry of <I>Salmonella</I> into host cells via the direct regulation of actin reorganization. In contrast to the interaction of caveolae with other pathogens, the caveolae did not form <I>Salmonella</I>-containing vesicles or endosomes in the host cells. Instead, the caveolae rapidly moved to the apical plasma membrane upon actin condensation during early invasion. Interestingly, the injected bacterial protein SopE interacted with Rac1 to regulate actin reorganization, and both proteins colocalized and directly interacted with caveolin-1 in caveolae during early invasion. After the complete internalization of <I>Salmonella</I>, SopE levels decreased both in the caveolae and in the host cytoplasm; Rac1 activity was also decreased. Downregulation of caveolin-1 by siRNA treatment led to reduction of <I>Salmonella</I> invasion compared with control siRNA-treated cells. These results suggest a new model in which caveolin-1 might be involved in <I>Salmonella</I> entry via its interaction with SopE and Rac1, leading to enhanced membrane ruffling for phagocytosis into host cells.</P>
Sung Youn Heo,Dong Hoon Kwak,Yu Na Seo,Won Seok Ju,Hyun Gyu Lim,Seo Yi Lee,Ji-Su Kim,Kyu-Tae Chang,Young-Kug Choo 한국당과학회 2016 한국당과학회 학술대회 Vol.2016 No.07
Mesenchymal stem cells can differentiate into multiple lineages depending on their exposure to differing biochemical and biomechanical inductive factors. The Ganglioside is included in biomarker, that are the major component of cytoplasmic cell membranes complex glycosphingolipids, and play a role in the control of biological processes. However, role of ganglioside in osteogenesis of mini-pig adipose derived mesenchymal stem cells (AD-MSCs) unclear . We have knocked down was ganglioside synthase UDP-glucose ceramide glucosyltransferase (UGCG)using a siRNA differentiation into osteoblast was markedly decreased in UGCG-knocked down AD-MSCs. The results showed significant inhibits alkaline phosphatase, osteocalcin, osteopontin, and Runt-related transcription factor 2 in UGCG knock down AD-MSCs compared to with the control AD-MSCs. Thus we guess, maybe ganglioside is essential factor to stimulate osteogenesis in AD-MSCs.
Lim, Chang-Su,Chun, Jeong-Seon,Sung, Soo-Kyung,Lee, Kyu-Cheol,Lee, Chan-Hee Korean Society for Biochemistry and Molecular Biol 1997 Journal of biochemistry and molecular biology Vol.30 No.2
Transforming growth $factor-{\beta}\;(TGF-{\beta})$ is a multifunctional polypeptide that exerts biological roles including cell proliferation, differentiation, extracellular matrix deposition and apoptosis in many different cell types. $TGF-{\beta}$, although known as a negative growth regulator, has not been tested in human embryo lung (HEll cells. This study attempts to understand the role of $TGF-{\beta}$ on growth control of HEL cells in relationship to tyrosine phosphorylation pattern of cellular proteins. In density-arrested HEL cells treated with $TGF-{\beta}$, analysis of Western immunoblot showed induction of tyrosine phosphorylation of two major cellular proteins (15 kDa and 45 kDa). In normal proliferating HEL cells with different concentrations of serum, further analysis indicated that the increase in tyrosine phosphorylation of a 45 kDa protein was regulated in serum concentration-dependent manner. However, in proliferating HEL cells treated with $TGF-{\beta}$, tyrosine phosphorylation of 45 kDa was down-regulated. Calcium involvement in the regulation of tyrosine phosphorylation of 45 kDa and 15 kDa proteins was also examined. Tyrosine phosphorylation of 15 kDa protein but not of 45 kDa protein was regulated by exogenous calcium. The level of tyrosine phosphorylation of 15 kDa protein was low at reduced caclium concentration and high at elevated caclium concentration. $TGF-{\beta}$ reversed the pattern of tyrosine phosphorylation of 15 kDa protein. These results suggest that tyrosine phosphorylation of 45 and 15 kDa proteins in HEL cells may be controlled depending on the physiological status of the cells, i.e., low in arrested cells and high in proliferating cells. And the tyrosine phosphorylation of the two proteins appears to be down- or up-regulated by $TGF-{\beta}$.
Differentiation of Human ES Cells to Endodermal Lineage Cells
Sung Ji-Hye,Lim Chun-Kyu,Cho Jae-Won,Park Hye-Won,Koong Mi-Kyoung,Yoon Hyun-Soo,Jun Jin-Hyun 한국발생생물학회 2003 한국발생생물학회 학술발표대회 Vol.2003 No.1
Embryonic stem (ES) cells have property of self-renewal and can differentiate into the cells of all three primary germ layers. Recently, many growth factors, alteration of culture condition and gene modifications have been used to differentiate mouse and human ES cells into specific cell types. This study was performed to evaluate the differentiation protocol for human ES cells to the endodermal lineage cells. Human ES cells (Miz-hESl ) were cultured on STO feeder layer mitotically inactivated with mitemycin C, and embryoid bodies (EBs) were formed by suspension culture. Differentiation protocol of EBs consisted of three steps: stage I, culture of EBs for 6 days with ITSFn medium; stage II, culture of stage I cells for 8 days with N2 medium ; stage III, culture of stage II cells for 22 days with N2 medium. mRNA levels of the endodermal lineage differentiation genes were analyzed by semi- quantitative RT-PCR. The Oct-4 expression, a marker of the pluripotent state, was detected in undifferentiated human ES cells but progressively decreased after EBs formation. Differentiating human ES cells expressed marker genes of endodermal differentiation and pancreatic islet cells. GATA4, a-fetoprotein, Glut-2, and Ngn3 were expressed in all stages. However, albumin and insulin were expressed in only stage III cells. The human ES cells can be differentiated into endodermal lineage cells by multiple step culture system using various supplements. We are developing the more effective protocols for guided differentiation of human ES cells.