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Li C, Xu BF, Zhang M, Song YM, Liu R. Severe Thrombocytopenia with Acute Cerebral Infarction: A Case Report and Literature Review. Niger J Clin Pract 2023; 26:1040-1044. [PMID: 37635593 DOI: 10.4103/njcp.njcp_844_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Common causes of thrombocytopenia include pseudo-thrombocytopenia, splenomegaly, decreased bone marrow production, and increased platelet destruction or depletion. The main clinical manifestation is bleeding, and thrombosis-related complications are rare. This article reports an 87-year-old woman with severe thrombocytopenia for more than 7 years. On day 6 in the hospital, the patient suddenly fell into a coma, and emergency head computed tomography (CT) displayed acute cerebral infarction of the left cerebellar hemisphere, brainstem, and left thalamus. Although thrombocytopenia is often associated with bleeding, there is still a need for vigilance against ischemic diseases. We analyzed the possible causes of acute cerebral infarction with thrombocytopenia and reviewed the literature. Our case is different from the causes of cerebral infarction reported in previous articles, so the relationship between thrombocytopenia and acute cerebral infarction needs further study. The patient, in this case, was not given anticoagulant or antiplatelet therapy but recovered well. It shows that individualized treatment is effective.
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Affiliation(s)
- C Li
- Department of VIP Unit, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, China
| | - B F Xu
- Department of Stroke Center, First Hospital of Jilin University, Changchun, Jilin Province, China
| | - M Zhang
- Department of VIP Unit, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, China
| | - Y M Song
- Department of VIP Unit, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, China
| | - R Liu
- Department of VIP Unit, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, China
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Zhu N, Huang YQ, Song YM, Zhang SZ, Zheng S, Yuan Y. [Efficacy comparison among high risk factors questionnaire and Asia-Pacific colorectal screening score and their combinations with fecal immunochemical test in screening advanced colorectal tumor]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:612-620. [PMID: 35844124 DOI: 10.3760/cma.j.cn441530-20211127-00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the effects of high risk factors questionnaire (HRFQ), Asia-Pacific colorectal screening (APCS) score and their combinations with fecal immunochemical test (FIT) in screening advanced colorectal neoplasia, in order to provide an evidence for further optimization of cancer screening program. Methods: A retrospective cohort study method was used to summarize and analyze the results of colorectal tumor screening in Jiashan County, Zhejiang Province from March 2017 to July 2018. Those with severe diseases that were not suitable for colonoscopy and those with mental and behavioral abnormalities who can not cooperate with the screening were excluded. Those who met any one or more of the followings in the HRFQ questionnaire were classified as high-risk people of HRFQ: (1) first-degree relatives with a history of colorectal cancer; (2) subjects with a history of cancer or any other malignant tumor; (3) subjects with a history of intestinal polyps; (4) those with two or more of the followings: chronic constipation (constipation lasted for more than 2 months per year in the past two years), chronic diarrhea (diarrhea lasted for more than 3 months in the past two years, and the duration of each episode was more than one week), mucus and bloody stools, history of adverse life events (occurring within the past 20 years and causing greater trauma or distress to the subject after the event), history of chronic appendicitis or appendectomy, history of chronic biliary disease or cholecystectomy. In this study, those who were assessed as high risk by HRFQ were recorded as "HRFQ (+)", and those who were not at high risk were recorded as "HRFQ (-)". The APCS questionnaire provided risk scores based on 4 risk factors including age, gender, family history and smoking: (1) age: 2 points for 50-69 years old, 3 points for 70 years old and above; (2) gender: 1 point for male, 0 point for women; (3) family history: 2 points for first-degree relatives suffering from colorectal cancer; (4) smoking: 1 point for current or past smoking, 0 point for non-smokers. The population was divided into low-risk (0-1 point), intermediate-risk (2-3 points), and high-risk (4-7 points). Those who were assessed as high risk by APCS were recorded as "APCS (+)", and those with intermediate and low risk were recorded as "APCS (-)". The hemoglobin threshold for a positive FIT was set to 100 μg/L. Those who were assessed as high risk by APCS with positive FIT were recorded as "APCS+FIT (+)". Those who were assessed as high risk by APCS with negative FIT, those who were assessed by APCS as low-middle risk with positive FIT, and those who were assessed by APCS as low-middle with negative FIT were all recorded as "APCS+FIT(-)". Observation indicators in this study were as follows: (1) the screening compliance rate of the cohort and the detection of advanced colorectal tumors; (2) positive predictive value, negative predictive value, sensitivity and specificity of HRFQ and APCS and their combination with FIT for screening advanced colorectal tumors; (3) comparison of the detection rate between HRFQ and APCS questionnaire for different colorectal lesions. Using SPSS 21.0 software, the receiver operating characteristic (ROC) curve was drawn to evaluate the clinical value of HRFQ and APCS combined with FIT in screening advanced colorectal tumors. Results: From 2017 to 2018 in Jiashan County, a total of 53 268 target subjects were screened, and 42 093 people actually completed the questionnaire, with a compliance rate of 79.02%. A total of 8145 cases underwent colonoscopy. A total of 3607 cases among HRFQ positive population (5320 cases) underwent colonoscopy, and the colonoscopy compliance rate was 67. 80%; 8 cases were diagnosed with colorectal cancer and 88 cases were advanced colorectal adenoma. A total of 2977 cases among APCS positive population (11 942 cases) underwent colonoscopy, and the colonoscopy compliance rate was 24.93%; 17 cases were diagnosed with colorectal cancer and 148 cases were advanced colorectal adenoma. The positive rate of HRFQ screening was lower than that of APCS [12.6% (5320/42 093) vs. 28.4% (11 942/42 093), χ2=3195. 547, P<0.001]. In the FIT positive population (6223 cases), a total of 4894 cases underwent colonoscopy, and the colonoscopy compliance rate was 78.64%; 34 cases were diagnosed with colorectal cancer and 224 cases were advanced adenoma. The positive predictive values of HRFQ and APCS and their combination with FIT for screening advanced colorectal tumors were 2.67%, 5.54%, 5.44%, and 8.56%; negative predictive values were 94.89%, 96.85%, 96.11% and 96.99%; sensitivity was 29.27%, 50.30%, 12.20 % and 39.02%; specificity was 55.09%, 64.03%, 91.11% and 82.51%, respectively. The ROC curves constructed by HRFQ, APCS, FIT, HRFQ+FIT and APCS+FIT indicated that APCS+FIT presented the highest efficacy in screening advanced colorectal tumors (AUC: 0.608, 95%CI: 0.574-0.642). The comparison of the detection rates of different colorectal lesions between HRFQ and APCS questionnaires showed that there were no significant differences in detection rate of inflammatory polyps and hyperplastic polyps between the two questionnaires (both P>0.05). However, as compared to HRFQ questionnaire, APCS questionnaire had higher detection rates in non-advanced adenomas [26.10% (777/2977) vs. 19.43% (701/3607), χ2=51.228, P<0.001], advanced adenoma [4.97% (148/2977) vs. 2.44% (88/3607), χ2=30.249, P<0.001] and colorectal cancer [0.57% (17 /2977) vs. 0.22% (8/3607), χ2=5.259, P=0.022]. Conclusions: APCS has a higher detection rate of advanced colorectal tumors than HRFQ. APCS combined with FIT can further improve the effectiveness of advanced colorectal tumor screening.
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Affiliation(s)
- N Zhu
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China Department of Medical Oncology, Key Labaratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y Q Huang
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y M Song
- Department of Colorectal Surgery and oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - S Z Zhang
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - S Zheng
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y Yuan
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China Department of Medical Oncology, Key Labaratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
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Oh SH, Lee CY, Song DH, Kim HW, Jin SK, Song YM. Effects of the slaughter weight of non-lean finishing pigs on their
carcass characteristics and meat quality. J Anim Sci Technol 2022; 64:353-364. [PMID: 35530398 PMCID: PMC9039950 DOI: 10.5187/jast.2022.e18] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/04/2022] [Accepted: 02/28/2022] [Indexed: 11/20/2022]
Abstract
The present study aimed to assess the feasibility of increasing the slaughter
weight (SW) of non-lean finishing pigs to improve their meat quality. A total of
36 (Landrace × Yorkshire) × Duroc gilts and barrows were
slaughtered at 115 (Av), 125 (Hi), or 135 (XHi) kg, followed by physicochemical
analyses and sensory evaluation on their longissimus dorsi (LD)
and Semimembranosus (SM) muscles. Backfat thickness was greater
(p < 0.05) for the XHi (31.2 mm) and Hi (29.3 mm)
groups than for Av (25.0 mm). Dressing percentage and yield of the belly per
whole carcass were also slightly greater for XHi and Hi vs. Av. The
intramuscular fat (IMF) content of SM was greater for XHi (2.64%) than for Av
(1.83%) and Hi (2.04%) and also was correlated with SW (r =
0.55). The pH value, lightness, redness, drip loss, shear force, and moisture
and protein contents of LD and SM, as well as IMF content of LD, were unaffected
by SW. Percentages of 14:0, 16:0, and total saturated fatty acids (FA) were less
for Hi and XHi vs. Av in SM, those of total unsaturated FA, 18:2, 20:4, and n-6
being opposite; FA composition of LM was not influenced by SW except for a
reduced 18:0 percentage for XHi vs. Av. The sensory score was less for XHi vs.
Av for odor in fresh LD and SM, and less for Hi and XHi vs. Av for aroma in
fresh LM; scores for color, drip loss, marbling, and acceptability were
unaffected by SW. As for cooked muscles, none of the scores for color, aroma,
flavor, juiciness, tenderness, and acceptability was affected by SW, except for
a greater LD color score for Hi and XHi vs. Av. Collectively, the results
suggested that the increased yield of the carcass and belly due to increased SW
is outbalanced negatively by excessive backfat deposition in production
efficiency, whereas the SW increase exerts little influence on overall sensory
quality of fresh or cooked meat. Production of non-lean market pigs overweighing
115 kg therefore will be uneconomical unless consumers pay a substantial premium
for the over-fattened pork.
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Affiliation(s)
- Sang-Hyon Oh
- Department of Animal Resources Technology,
Gyeongsang National University, Jinju 52725, Korea
| | - Chul Young Lee
- Department of Animal Resources Technology,
Gyeongsang National University, Jinju 52725, Korea
| | - Dong-Heon Song
- Animal Science and Biotechnology,
Gyeongsang National University, Jinju 52725, Korea
| | - Hyun-Wook Kim
- Animal Science and Biotechnology,
Gyeongsang National University, Jinju 52725, Korea
| | - Sang Keun Jin
- Department of Animal Resources Technology,
Gyeongsang National University, Jinju 52725, Korea
| | - Young-Min Song
- Department of Animal Resources Technology,
Gyeongsang National University, Jinju 52725, Korea
- Corresponding author: Young-Min Song, Departments
of Animal Resources Technology, Gyeongsang National University, Jinju 52725,
Korea. Tel: +82-55-751-3282, E-mail:
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Sun XY, Luo W, Lan HY, Song YM, Gao QY, Zhu ZC, Chen JG, Cai XZ. Transmutation of long-lived fission products in an advanced nuclear energy system. Sci Rep 2022; 12:2240. [PMID: 35140312 PMCID: PMC8828891 DOI: 10.1038/s41598-022-06344-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 01/13/2022] [Indexed: 11/12/2022] Open
Abstract
Disposal of long-lived fission products (LLFPs) produced in reactors has been paid a lot attention for sustainable and clean nuclear energy. Although a few transmutation means have been proposed to address this issue, there are still scientific and/or engineering challenges to achieve efficient transmutation of LLFPs. In this study, we propose a novel concept of advanced nuclear energy system (ANES) for transmuting LLFPs efficiently without isotopic separation. The ANES comprises intense photoneutron source (PNS) and subcritical reactor, which consist of lead–bismuth (Pb-Bi) layer, beryllium (Be) layer, and fuel, LLFPs and shield assemblies. The PNS is produced by bombarding radioactive cesium and iodine target with a laser-Compton scattering (LCS) γ-ray beam. We investigate the effect of the ANES system layout on transmutation efficiency by Monte Carlo simulations. It is found that a proper combination of the Pb-Bi layer and the Be layer can increase the utilization efficiency of the PNS by a factor of ~ 10, which helps to decrease by almost the same factor the LCS γ-beam intensity required for driving the ANES. Supposing that the ANES operates over 20 years at a normal thermal power of 500 MWt, five LLFPs including 99Tc, 129I, 107Pd, 137Cs and 79Se could be transmuted by more than 30%. Their effective half-lives thus decrease drastically from ~ 106 to less than 102 years. It is suggested that this successful implementation of the ANES paves the avenue towards practical transmutation of LLFPs without isotopic separation.
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Affiliation(s)
- X Y Sun
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - W Luo
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China.
| | - H Y Lan
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - Y M Song
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - Q Y Gao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Z C Zhu
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - J G Chen
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.
| | - X Z Cai
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
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5
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Song YM, Lee HJ, Min SK, Park YH, Oh JK, Kim JY, Park JB. Effects of noni on cellular viability and osteogenic differentiation of gingiva-derived stem cells demonstrated by RNA sequencing and quantitative PCR. Exp Ther Med 2021; 23:32. [PMID: 34824640 PMCID: PMC8611496 DOI: 10.3892/etm.2021.10954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/13/2021] [Indexed: 12/28/2022] Open
Abstract
Noni fruit (Morinda citrifolia) has been widely used in traditional medicine across tropical and subtropical regions, and is now being paid more attention in Western medicine. The present study aimed to investigate the effects of noni extract on the change in the cellular morphology, maintenance of cellular viability and enhancement of osteogenic differentiation of stem cells. Stem cells obtained from gingiva were cultured where noni extracts existed at concentrations ranging from 10-200 ng/ml. Evaluations of cell morphology and cellular viability were performed. Alkaline phosphatase activity assays were performed to assess the osteogenic differentiation. Alizarin Red S staining was performed to evaluate the calcium deposits in the culture, with the addition of noni extract. Global gene expression was analyzed via next-generation mRNA sequencing. Gene ontology and pathway analyses were performed to determine the associated mechanisms. Validation procedures were performed via quantitative (q)PCR analysis. The addition of noni at concentrations ranging from 10-200 ng/ml did not produce significant morphological changes. There were significantly higher values of cellular viability, with the highest value at 100 ng/ml compared with the control (P<0.05). Furthermore, significantly higher values of alkaline phosphatase activity was noted in the 10 and 100 ng/ml groups compared with the 0 ng/ml group on day 7 (P<0.05). Alizarin Red S staining revealed calcium deposits in each group. In addition, the highest value for Alizarin Red S staining was observed at 100 ng/ml compared with the unloaded control (P<0.05). qPCR analysis demonstrated that the mRNA expression levels of RUNX2, BSP, OCN and COL1A1 increased following treatment with noni. Taken together, the results of the present study suggest that noni extract has enhancing effects on gingiva-derived mesenchymal stem cells, by enhancing cellular viability and osteogenic differentiation.
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Affiliation(s)
- Young-Min Song
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Hyun-Jin Lee
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sae-Kyung Min
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | | | - Jae-Kwen Oh
- Merden Dental Hospital, Bucheon-si, Gyeonggi 14544, Republic of Korea
| | - Ji-Youn Kim
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jun-Beom Park
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
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Lee HJ, Song YM, Baek S, Park YH, Park JB. Vitamin D Enhanced the Osteogenic Differentiation of Cell Spheroids Composed of Bone Marrow Stem Cells. Medicina (Kaunas) 2021; 57:medicina57111271. [PMID: 34833489 PMCID: PMC8625339 DOI: 10.3390/medicina57111271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/14/2021] [Accepted: 11/16/2021] [Indexed: 12/17/2022]
Abstract
Background and Objectives: Vitamin D is a bone modulator widely used in regenerative medicine. This study aimed to analyze the effects of vitamin D on the osteogenic differentiation and mineralization of human mesenchymal stem cells. Materials and Methods: Spheroids were fabricated using human bone marrow-derived stem cells, and were cultured in the presence of vitamin D at concentrations of 0, 0.1, 1, 10, and 100 nM. Stem cell spheroids were fabricated and the morphological evaluation was conducted on days 1, 3, 7 and 14. Determination of qualitative cellular viability was performed with Live/Dead Kit assay on days 1 and 7. Quantitative cellular viability was evaluated with Cell Counting Kit-8 on days 1, 3, 7, and 14. To analyze the osteogenic differentiation of cell spheroids, alkaline phosphatase activity assays were performed with commercially available kit on days 7 and 14. Real-time polymerase chain reaction was used to determine the expression levels of RUNX2, BSP, OCN, and COL1A1 on days 7 and 14. Results: The stem cells produced well-formed spheroids, and addition of vitamin D did not result in any noticeable changes in the shape. The addition of vitamin D did not significantly change the diameter of the spheroids at 0, 0.1, 1, 10, or 100 nM concentrations. Quantitative cell viability results from days 1, 3, 7 and 14 showed no significant difference between groups (p > 0.05). There was significantly higher alkaline phosphatase activity in the 0.1 nM group when compared with the control group on day 14 (p < 0.05). Real-time polymerase chain reaction results demonstrated that the mRNA expression levels of RUNX2, OCN, and COL1A1 were significantly increased when vitamin D was added to the culture. Conclusions: Based on these findings, we concluded that vitamin D could be applied to the increased osteogenicity of stem cell spheroids.
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Affiliation(s)
- Hyun-Jin Lee
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.-J.L.); (Y.-M.S.)
| | - Young-Min Song
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.-J.L.); (Y.-M.S.)
| | | | - Yoon-Hee Park
- Ebiogen, #405, Sungsu A1 Center 48 Ttukseom-ro 17-ga-gil, Seongdong-gu, Seoul 04785, Korea;
| | - Jun-Beom Park
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.-J.L.); (Y.-M.S.)
- Correspondence: ; Tel.: +82-2-2258-6290
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Han Y, Song Y, Kim GW, Ha C, Lee J, Kim M, Son H, Lee G, Gautam R, Heo Y. Correction to: No prominent toxicity of polyethylene microplastics observed in neonatal mice following intratracheal instillation to dams during gestational and neonatal period. Toxicol Res 2021; 38:111. [DOI: 10.1007/s43188-021-00113-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Lee JH, Song YM, Min SK, Lee HJ, Lee HL, Kim MJ, Park YH, Park JU, Park JB. NELL-1 Increased the Osteogenic Differentiation and mRNA Expression of Spheroids Composed of Stem Cells. ACTA ACUST UNITED AC 2021; 57:medicina57060586. [PMID: 34201046 PMCID: PMC8229008 DOI: 10.3390/medicina57060586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/21/2021] [Accepted: 06/04/2021] [Indexed: 11/23/2022]
Abstract
Background and objectives: NELL-1 is a competent growth factor and it reported to target cells committed to the osteochondral lineage. The secreted, osteoinductive glycoproteins are reported to rheostatically control skeletal ossification. This study was performed to determine the effects of NELL-1 on spheroid morphology and cell viability and the promotion of osteogenic differentiation of stem cell spheroids. Materials and Methods: Cultures of stem cell spheroids of gingiva-derived stem cells were grown in the presence of NELL-1 at concentrations of 1, 10, 100, and 500 ng/mL. Evaluations of cell morphology were performed using a microscope, and cell viability was assessed using a two-color assay and Cell Counting Kit-8. Evaluation of the activity of alkaline phosphatase and calcium deposition assays involved anthraquinone dye assay to determine the level of osteogenic differentiation of cell spheroids treated with NELL-1. Real-time quantitative polymerase chain reaction (qPCR) was used to evaluate the expressions of RUNX2, BSP, OCN, COL1A1, and β-actin mRNAs. Results: The applied stem cells produced well-formed spheroids, and the addition of NELL-1 at tested concentrations did not show any apparent changes in spheroid shape. There were no significant changes in diameter with addition of NELL-1 at 0, 1, 10, 100, and 500 ng/mL concentrations. The quantitative cell viability results derived on Days 1, 3, and 7 did not show significant disparities among groups (p > 0.05). There was statistically higher alkaline phosphatase activity in the 10 ng/mL group compared with the unloaded control on Day 7 (p < 0.05). A significant increase in anthraquinone dye staining was observed with the addition of NELL-1, and the highest value was noted at 10 ng/mL (p < 0.05). qPCR results demonstrated that the mRNA expression levels of RUNX2 and BSP were significantly increased when NELL-1 was added to the culture. Conclusions: Based on these findings, we conclude that NELL-1 can be applied for increased osteogenic differentiation of stem cell spheroids.
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Affiliation(s)
- Jong-Ho Lee
- Department of Oral and Maxillofacial Surgery, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Young-Min Song
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.-M.S.); (S.-K.M.); (H.-J.L.)
| | - Sae-Kyung Min
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.-M.S.); (S.-K.M.); (H.-J.L.)
| | - Hyun-Jin Lee
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.-M.S.); (S.-K.M.); (H.-J.L.)
| | - Hye-Lim Lee
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA 92697, USA;
| | - Min-Ji Kim
- College of Dentistry, Chosun University, Gwangju 61452, Korea;
| | - Yoon-Hee Park
- Ebiogen, #405, Sungsu A1 Center 48 Ttukseom-ro 17-ga-gil, Seongdong-gu, Seoul 04785, Korea;
| | - Je-Uk Park
- Department of Oral and Maxillofacial Surgery, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
- Correspondence: (J.-U.P.); (J.-B.P.); Tel.: +82-2-2258-6291 (J.-U.P.); +82-2-2258-6290 (J.-B.P.)
| | - Jun-Beom Park
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (Y.-M.S.); (S.-K.M.); (H.-J.L.)
- Correspondence: (J.-U.P.); (J.-B.P.); Tel.: +82-2-2258-6291 (J.-U.P.); +82-2-2258-6290 (J.-B.P.)
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Yoon YC, Kim DY, Song YM, Yoon K, Jeon M. Online multiple pedestrians tracking using deep temporal appearance matching association. Inf Sci (N Y) 2021. [DOI: 10.1016/j.ins.2020.10.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Kong L, Chen ZX, Qin YQ, Xia HW, Long JQ, Qin QH, Song YM, Wei HW. [Occurrence and related factors of preterm birth in Guangxi Zhuang Autonomous Region during 2017-2019]. Zhonghua Yi Xue Za Zhi 2020; 100:3338-3341. [PMID: 33202498 DOI: 10.3760/cma.j.cn112137-20200804-02276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the incidence of preterm birth in Guangxi Zhuang Autonomous Region and explore the related factors and their combined effects. Methods: The study subjects were women giving birth to live babies at the monitoring points of critical maternal hospital monitoring system in Guangxi Zhuang Autonomous Region from January 1, 2017 to December 31, 2019. The data of general characteristics (age and marital status), pregnancies (parity, number of previous cesarean delivery, the number of prenatal check and number of fetuses in this pregnancy) and disease conditions (placenta previa, placental abruption, hypertension, diabetes, anemia, and heart disease) were collected, and the incidence of preterm birth were calculated according to the definition of preterm birth set by WHO and China, respectively. Logistic regression model was used to explore the factors associated with premature birth and their combined effects. Results: According to definitions of WHO and China, the cumulative incidence of preterm birth in Guangxi from 2017 to 2019 was 7.45% (16 819/225 727) and 7.34% (16 559/225 727), respectively. Advanced age [≤34 years old as reference, OR (95%CI) of 35-39 and ≥40 years old were 1.36 (1.30-1.42) and 1.61 (1.50-1.74), respectively], unmarried (including divorced or widowed) [OR (95%CI): 1.28 (1.17-1.40)], primiparae [OR (95%CI): 1.34 (1.29-1.40)], previous cesarean section [no previous cesarean section as reference, OR (95%CI) of 1 and ≥2 times of previous cesarean section were 1.30 (1.24-1.36) and 1.85 (1.65-2.08), respectively], antenatal examination<8 [OR (95%CI): 2.72 (2.62-2.81)], multiple pregnancies [OR (95%CI): 15.00 (14.01-16.06)], placenta previa [OR (95%CI): 6.90 (6.35-7.50)], placental abruption [OR (95%CI): 8.18 (7.36-9.10)], gestational hypertension [OR (95%CI): 2.29 (2.17-2.42)], gestational diabetes mellitus [OR (95%CI): 1.43 (1.37-1.49)], anemia [OR (95%CI): 1.10 (1.07-1.14)], and heart diseases [OR (95%CI): 2.98(2.43-3.65)] were all positively correlated with preterm birth. The risk of preterm birth in pregnant women exposed to 1, 2, 3, 4, 5, 6 and ≥7 preterm birth related factors was 1.51, 2.29, 4.49, 9.69, 20.87, 46.88 and 192.11 times that of non-exposed women, respectively (all P values<0.001). Conclusion: Preterm birth is associated with maternal general characteristics, pregnancy and disease status, and the combined effect of preterm birth related factors significantly increases the risk of preterm birth.
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Affiliation(s)
- L Kong
- Department of Obstetrics, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
| | - Z X Chen
- Guangxi Center of Healthcare Quality Management in Obstetrics, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
| | - Y Q Qin
- Department of Obstetrics, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
| | - H W Xia
- Department of Obstetrics, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
| | - J Q Long
- Department of Obstetrics, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
| | - Q H Qin
- Maternal Health Care Department, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
| | - Y M Song
- Maternal Health Care Department, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
| | - H W Wei
- Department of Obstetrics, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
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Yang FL, Hong K, Zhao GJ, Liu C, Song YM, Ma LL. [Construction of prognostic model and identification of prognostic biomarkers based on the expression of long non-coding RNA in bladder cancer via bioinformatics]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:615-622. [PMID: 31420610 DOI: 10.19723/j.issn.1671-167x.2019.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To construct the prognostic model and identify the prognostic biomarkers based on long non-coding RNA (lncRNA) in bladder cancer. METHODS The lncRNA expression data and corresponding clinical data of bladder cancer were collected from The Cancer Genome Atlas (TCGA) database. The software Perl and R, and R packages were used for data integration, extraction, analysis and visualization. Detailly, R package "edgeR" was utilized to screen differentially expressed lncRNA in bladder cancer tissues compared with the normal bladder samples. The univariate Cox regression and the least absolute shrinkage and selection operator (Lasso) regression were performed to identify key lncRNA that were utilized to construct the prognostic model by the multivariate Cox regression. According to the median value of the risk score, all patients were divided into the high-risk group and low-risk group to perform the Kaplan-Meier (K-M) survival curves, receiver operating characteristic (ROC) curve and C-index, estimating the prognostic power of the prognostic model. In addition, the hazard ratio (HR) and 95% confidence interval (CI) of each key lncRNA were also calculated by the multivariate Cox regression. Moreover, we performed the K-M survival analysis for each significant key lncRNA from the result of the multivariate Cox regression. RESULTS A total of 691 lncRNA were identified as differentially expressed lncRNA, and 35 lncRNA signatures were initially considered associated with the prognosis of bladder cancer, where in 23 lncRNA were identified as key lncRNA associated with the prognosis. The overall survival time in years of the low-risk group was obviously longer than that of the high-risk group [(2.85±2.72) years vs. (1.58±1.51) years, P<0.001]. The area under the ROC curve (AUC) was 0.813 (3-year survival) and 0.778 (5-year survival) respectively, and the C-index was 0.73. In addition, HR and 95%CI of each key lncRNA were calculated by the multivariate Cox regression and 11 lncRNA were significant. Furthermore, K-M survival analysis revealed the independent prognostic value of 3 lncRNA, including AL589765.1 (P=0.004), AC023824.1 (P=0.022)and PKN2-AS1 (P=0.016). CONCLUSION The present study successfully constructed the prognostic model based on the expression level of 23 lncRNA and finally identified one protective prognostic biomarker AL589765.1, and two adverse prognostic biomarkers including AC023824.1 and PKN2-AS1 in bladder cancer.
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Affiliation(s)
- F L Yang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - K Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - G J Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - C Liu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Y M Song
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Yang BS, Kim MH, Choi JS, Jin SK, Park MJ, Song YM, Lee CY. Effects of the plane of nutrition for grower pigs on their grow-finish performance and meat quality in winter. J Anim Sci Technol 2019; 61:1-9. [PMID: 31333855 PMCID: PMC6582915 DOI: 10.5187/jast.2019.61.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/10/2019] [Accepted: 01/14/2019] [Indexed: 11/22/2022]
Abstract
Little is known about the effects of the plane of nutrition on growth performance
and meat quality of grow-finish pigs under commercial production conditions. The
present study was thus addressed to this virtually unanswered question. One
hundred and two barrows and 102 gilts weighing approximately 24 kg were fed
phase I and II grower diets with a high, medium, or low plane of nutrition (HP,
MP, or LP) to approximately 43 and 70 kg, respectively, in 6 replicates (pens).
Subsequently, the HP and MP groups were fed the HP and MP1 finisher diets,
respectively, the LP group being fed a second MP (MP2) finisher diet (LP1
group). Moreover, 68 LP-grower-fed barrows and gilts were added to the feeding
trial and fed the MP1 and LP finisher diets to approximately 95 kg and
thereafter, respectively (LP2 group). All MP diets had the lysine:calorie ratios
comparable to the RNC recommendations, with < 18% differences
between those of the HP and LP diets. The finisher pigs were reared in 16 pens
and slaughtered at approximately 115 kg. The gain:feed ratio, but not average
daily gain (ADG), was greater for the HP group than for the MP and LP during the
grower phase I whereas during the grower phase II, ADG was greater
(p < 0.05) for the HP and LP groups vs. MP. During
the finisher phase I, ADG was less for the LP (LP1 + LP2) group vs. HP
and MP, with no difference between the HP and MP groups; the gain:feed ratio was
less for the LP vs. MP group. Backfat thickness was greater for the LP vs. HP
group. The water holding capacity of fresh longissimus dorsi
muscle (LM) and the sensory juiciness score for cooked LM were greatest for the
LP group, the sensory flavor and tenderness scores being greater for the LP
group vs. MP. In conclusion, results suggest that compensatory growth occurred
for the LP and MP groups during the grower phase II and finisher phase I,
respectively, with fat deposition increased for the LP group and that meat
quality could be improved by the use of LP.
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Affiliation(s)
- Bo-Seok Yang
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
| | - Myeong Hyeon Kim
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
| | - Jung-Seok Choi
- Swine Science and Technology Center, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
| | - Sang Keun Jin
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 52725, Korea.,Regional Animal Industry Center, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
| | - Man-Jong Park
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
| | - Young-Min Song
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
| | - Chul Young Lee
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 52725, Korea.,Regional Animal Industry Center, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
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Chen XF, Song YM, Zou CC. [Schaaf-Yang syndrome caused by the new variation of MAGEL2 gene in a case]. Zhonghua Er Ke Za Zhi 2019; 57:155-157. [PMID: 30695895 DOI: 10.3760/cma.j.issn.0578-1310.2019.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- X F Chen
- Department of Endocrinology, the Children's Hospital of Zhejiang University School of Medicine, Hangzhou 310051, China
| | - Y M Song
- Department of Pediatrics, Huzhou Central Hospital, Huzhou 313000, China
| | - C C Zou
- Department of Endocrinology, the Children's Hospital of Zhejiang University School of Medicine, Hangzhou 310051, China
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Yang SW, Kim MH, Choi JS, Jin SK, Park MJ, Song YM, Lee CY. Effects of the plane of nutrition during the latter grower and entire finisher phases on grow-finish pig performance in summer. J Anim Sci Technol 2019; 61:10-17. [PMID: 31333856 PMCID: PMC6582920 DOI: 10.5187/jast.2019.61.1.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/10/2019] [Accepted: 01/14/2019] [Indexed: 11/20/2022]
Abstract
The present study was undertaken to investigate the effects of the plane of nutrition (PN) for growing-finishing pigs on growth performance and meat quality in summer. One hundred and two barrows and 102 gilts weighing approximately 44 kg were placed on a high-, medium-, or low-plane grower diet (HPG, MPG, or LPG) with ME and lysine concentrations ranging from 3.33 to 3.40 Mcal/kg and 0.93% to 1.15%, respectively, for 29 days in 6 replicates (pens) in total. Pigs from each grower pen were divided into two finisher pens and provided with a high-plane finisher diet (HPF) containing 3.40 Mcal ME and 9.5 g lysine/kg and a low-plane finisher diet (LPF; 3.25 Mcal ME and 8 g lysine/kg), respectively, up to approximately 110 kg, and slaughtered. Growth performance of the pigs, including average daily gain (ADG), average daily feed intake (ADFI), and gain:feed ratio, was not influenced by the grower-phase PN during any of the grower phase, a 31-d finisher phase I, and ensuing phase II. However, both the ADG and gain:feed ratio were greater (p < 0.05) for the HPF group than for the LPF group during the finisher phase I (748 vs. 653 g with SEM = 13 g and 0.333 vs. 0.299 with SEM = 0.008, respectively). The ADG, but not gain:feed ratio, was greater for the HPF group vs. LPF during the finisher phase II (673 vs. 623 g with SEM = 15 g for ADG and 0.322 vs. 0.323 with SEM = 0.005 for the gain:feed ratio). The carcass backfat thickness (BFT) was greater for the LPF group vs. HPF within the pigs which had been placed on LPG during the grower phase, but not within the pigs from the HPG or MPG group. Physicochemical characteristics of the longissimus dorsi muscle (LM) and sensory quality attributes of fresh and cooked LM were not influenced by either the grower-phase or finisher-phase PN. In conclusion, high PN is necessary for finishing pigs during the hot season to minimize the reduced rate of weight gain and also to prevent the increase of BFT that could result from low PN.
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Affiliation(s)
- Seung Won Yang
- Department of Animal Resources Technology, Gyeongnam National
University of Science and Technology, Jinju 52725, Korea
| | - Myeong Hyeon Kim
- Department of Animal Resources Technology, Gyeongnam National
University of Science and Technology, Jinju 52725, Korea
| | - Jung-Seok Choi
- Swine Science and Technology Center, Gyeongnam National University
of Science and Technology, Jinju 52725, Korea
| | - Sang-Keun Jin
- Department of Animal Resources Technology, Gyeongnam National
University of Science and Technology, Jinju 52725, Korea
- Regional Animal Industry Center, Gyeongnam National University of
Science and Technology, Jinju 52725, Korea
| | - Man-Jong Park
- Department of Animal Resources Technology, Gyeongnam National
University of Science and Technology, Jinju 52725, Korea
| | - Young-Min Song
- Department of Animal Resources Technology, Gyeongnam National
University of Science and Technology, Jinju 52725, Korea
| | - Chul Young Lee
- Department of Animal Resources Technology, Gyeongnam National
University of Science and Technology, Jinju 52725, Korea
- Regional Animal Industry Center, Gyeongnam National University of
Science and Technology, Jinju 52725, Korea
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Chen JF, Song YM, Jin J, Yu SY, Bian SZ, Li P, Huang L. [Efficacy and safety of catheter-directed interventional therapy in patients with acute pulmonary embolism]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:972-975. [PMID: 30572402 DOI: 10.3760/cma.j.issn.0253-3758.2018.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To evaluate the efficacy and safety of catheter-directed interventional therapy in patients with acute pulmonary embolism(PE). Methods: PE was diagnosed by CT pulmonary angiography(CTPA). After risk stratification, a total of 79 PE patients (age (58.9±14.9) years old)were treated with catheter-directed interventional therapy via pulmonary vessels. The changes of pulmonary hemodynamics were compared before and after treatment. The risk of complications and side effects were observed. Results: The pulmonary artery pressure was changed followed by interventional therapy. The interventional therapy significantly decreased mean pulmonary arterial pressure (mPAP) from (35.3±11.2)mmHg (1 mmHg=0.133 kPa) to (30.0±10.6)mmHg (t=8.803,P<0.05) and the echocardiographic derived right ventricular dimension to left ventricular dimension (RV/LV) ratio from 0.93±0.16 to 0.83±0.15 (t=6.868,P<0.05). The arterial partial pressure of oxygen was increased from (69.0±8.6)mmHg to (75.1±9.9)mmHg (t=8.561,P<0.05) . The oxygen saturation was also increased from (93.9±2.9)% to (95.1±1.9)% at 24 h after the treatment (t=2.621,P<0.05) . Patients were further grouped as high-risk group (n=28) and intermediate risk group (n=51). mPAP and RV/LV ratio were significantly reduced in the two subgroups (all P<0.05) and the range of reduction was more significant in the high-risk group. Five patients experienced minor bleeding complication, 3 patients suffered worsened dispone post procedure and were treated with mechanical ventilation, 1 patient died, and 1 patient developed recurrent PE. Conclusion: The catheter-directed interventional therapy improves pulmonary hemodynamics and reduces load of right ventricle both in high-risk or intermediate risk PE patients, this therapy strategy is safe and effective for patients with PE.
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Affiliation(s)
- J F Chen
- Department of Cardiology, Second Affiliated Hospital, Army Medical University, Chongqing 400037, China
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Chen GC, Lu XM, Song YM, Gyawail L, Geng ZH, Song MB, Qian DH, Zhang YP, Ni DC, He Y. A 3-year experience of a simple, novel technique for accurate ostial/non-ostial coronary stenting: The buddy balloon anchor stent technique. Catheter Cardiovasc Interv 2018; 92:1147-1152. [PMID: 30019847 DOI: 10.1002/ccd.27667] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/26/2018] [Accepted: 04/19/2018] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To evaluate the safety and efficacy of a new technique for accurate ostial/non-ostial coronary stenting in percutaneous coronary intervention (PCI). BACKGROUND Accurate stent localization is a key factor impacting the postoperative success of patients undergoing PCI. However, the accurate localization of some lesions, especially ostial lesions, is very difficult to achieve, because they are often complicated by bobbing or to-and-fro movement of the stent during cardiac contractions. METHODS We report a novel technique of precise ostial/non-ostial stenting based on the buddy balloon anchor stent (BBAS) technique. Between May 2014 and July 2017, 47 patients with significant ostial/non-ostial coronary stenosis that required accurate stenting were included in this study. Of them, 23 patients were treated using the conventional method and the remaining 24 patients were treated using (BBAS) technique. Evaluation was then performed using intravascular ultrasound (IVUS) in the procedural, or coronary computed tomography angiography (CCTA) in the follow up. RESULTS Using the BBAS technique, the procedural success was achieved in all 24 (100%) cases. IVUS was performed in seven patients (29.17%) and no procedural complications occurred. All six failed cases that occurred among patients with right coronary artery and left anterior descending artery ostial stenosis treated using the conventional method, the lesions were subsequently successfully re-stented using the BBAS technique. After a follow-up of 3-36 months, CCTA was performed in 11 patients (45.83%), all the stents were in the accurate position. There were no major cardiovascular events of death, myocardial infarction, or target lesion revascularization. CONCLUSION BBAS is a simple, highly successful and safe technique for accurate stenting of difficult ostial/nonostial coronary stenosis lesions.
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Affiliation(s)
- G C Chen
- Department Of Cardiology, Chongqing Kanghua Zhonglian Cardiovascular Hospital, Chong Qing, China
| | - X M Lu
- Department Of Cardiology, Chongqing Kanghua Zhonglian Cardiovascular Hospital, Chong Qing, China
| | - Y M Song
- Department Of Cardiology, Institute of Cardiovascular Disease of People's Liberation Army, Xinqiao Hospital, Army Medical University, Chong Qing, China
| | - Laxman Gyawail
- Department Of Cardiology, Second Affiliated Hospital of Chongqing Medical University, Chong Qing, China
| | - Z H Geng
- Department Of Cardiology, Chongqing Kanghua Zhonglian Cardiovascular Hospital, Chong Qing, China
| | - M B Song
- Department Of Cardiology, Institute of Cardiovascular Disease of People's Liberation Army, Xinqiao Hospital, Army Medical University, Chong Qing, China
| | - D H Qian
- Department Of Cardiology, Institute of Cardiovascular Disease of People's Liberation Army, Xinqiao Hospital, Army Medical University, Chong Qing, China
| | - Y P Zhang
- Department Of Cardiology, Chongqing Kanghua Zhonglian Cardiovascular Hospital, Chong Qing, China
| | - D C Ni
- Department Of Cardiology, Chongqing Kanghua Zhonglian Cardiovascular Hospital, Chong Qing, China
| | - Yun He
- Department Of Cardiology, Chongqing Kanghua Zhonglian Cardiovascular Hospital, Chong Qing, China
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Seo HM, Moon GT, Song YM, Gee HY, Park YM, Lee JY, Lee JH. Expression of YAP and TAZ in molluscum contagiosum virus infected skin. Br J Dermatol 2018; 179:188-189. [PMID: 29330849 DOI: 10.1111/bjd.16333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- H-M Seo
- Department of Dermatology, Hanyang University Guri Hospital, Seoul, Korea
| | - G T Moon
- Department of Dermatology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Y M Song
- Department of Dermatology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - H Y Gee
- Department of Pharmacology, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Y M Park
- Department of Dermatology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - J Y Lee
- Department of Dermatology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - J H Lee
- Department of Dermatology, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
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Zhao L, Ma LL, Zhang HX, Hou XF, Liu L, Fu Y, Kou YG, Song YM. [Technical improvement in retroperitoneal laparoscopic living donor nephrectomy: report of 193 cases]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:867-871. [PMID: 29045971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To summarize our experience of retroperitoneal laparoscopic living donor nephrectomy, our continuous technical improvements and refinement of this skill and standardization of each procedure of this operation. METHODS Having approved by hospital ethical committee and local government administration, a total of 193 living donors underwent retroperitoneal laparoscopic living donor nephrectomy from Dec.2003 to Feb. 2016 in our department. Under general anaesthesia, the operation was performed through 3 lumbar ports. After the kidney was liberated fully and the ureter was severed 7-8 cm under the lower pole of the kidney, the renal artery and vein were blocked with endo-cut or hem-o-lok separately and then severed. Then the kidney was taken out quickly and flushed with 4 °C kidney preserving fluid immediately, the donor kidneys were then preserved in iced saline until kidney transplantation. Clinical data about operation time, volume of blood loss, perioperative complications, renal function of both donors and recipients before and after operation were collected. RESULTS The 193 retroperitoneal laparoscopic living donor nephrectomy operations were successful with only one operation was converted to open living donor nephrectomy because of hemorrhage and unclear operation field during the operation. The average operation time was 85 min (55-135 min), the average blood loss was 60 mL (20-200 mL), and no donor needed blood transfusion during or after operation. Three donors were found to have hematoma of renal fossa after operation and none of them required further treatment. The average hospital stay after operation was 5.7 days (4-9 days). In the study, 162 donors were followed up for an average of 42 months (1-58 months) and they were all healthy. Two kidney recipients had urinary bladder anastomosis leakage after operation and both needed surgical repair, a new anastomosis of ureter and bladder were made. Three kidney recipients had kidney subcapsular hematoma but required no further treatment. One kidney recipient had delayed graft function and recovered finally and the renal function of other recipients were all normal. Renal function of both donors and recipients during the follow up period were normal. CONCLUSION Retroperitoneal laparoscopic living donor nephrectomy is a safe and reliable technique, it may become a standardized operation for living kidney transplantation after continuous technical improvement. Precautions must be taken to avoid complications and a skilled hand is necessary for success.
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Affiliation(s)
- L Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H X Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - X F Hou
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L Liu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Y Fu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Y G Kou
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Y M Song
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Zhang ZH, Fan XY, Zhao ZT, Song YM, Yu CJ. [RNA interference targeting DNA-PKcs inhibits glioma cells malignancies and enhances temozolomide sensitivity]. Zhonghua Yi Xue Za Zhi 2017; 97:2463-2467. [PMID: 28835051 DOI: 10.3760/cma.j.issn.0376-2491.2017.31.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of DNA dependent protein kinase catalytic subunit (DNA-PKcs) on glioma proliferation, invasion and temozolomide sensitivity, and also to explore the potential mechanisms. Methods: Human glioma cell lines H4 and U87 were chosen to carry out RNA interference transfection, and then divided into negative control group (blank group) and siRNA group (test group). The knockdown efficacy of DNA-PKcs siRNA was tested by quantitative PCR and Western blot. The MTS assay and Transwell assay were used to investigate the effect of DNA-PKcs knockdown on glioma cell growth and invasion, respectively. We also used MTS assay to investigate the IC(50) value of temozolomide in negative control group and siRNA groups. Result: Compared with blank group, DNA-PKcs specific siRNA significantly downregulated both mRNA and protein level of DNA-PKcs. MTS assay results demonstrated that 72-hours proliferation of test group were only 52.48%, 54.70% (H4) and 52.98%, 50.45% (U87) of the blank group's counterpart. Transwell assay results showed that the invasiveness abilities of blank and test groups were 1.00±0.03, 0.41±0.05, 0.39±0.04 (H4) and 1.00±0.02, 0.28±0.04, 0.27±0.04 (U87). Moreover, knockdown of DNA-PKcs significantly decreased the temozolomide IC(50) value (H4: 249±27, 97±39, 88±35; U87: 485±41, 86±49, 73±38). Further we applied the Western blot to reveal the mechanism of inhibitory effect of DNA-PKcs knockdown on glioma malignancies and temozolomide sensitivity. We found that downregulation of DNA-PKcs reduced the activity of AKT signal and the expression of its downstream effectors, such as c-Myc, MMP9, and Survivin. Conclusion: RNA interference targeting DNA-PKcs could inhibit glioma malignancies and enhance temozolomide sensitivity. The inhibitory effect of DNA-PKcs knockdown on those biological activities were mainly through inhibition of AKT signal and its downstream effectors.
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Affiliation(s)
- Z H Zhang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
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Du F, Yuan P, Zhao ZT, Yang Z, Wang T, Zhao JD, Luo Y, Ma F, Wang JY, Fan Y, Cai RG, Zhang P, Li Q, Song YM, Xu BH. Erratum: A miRNA-based signature predicts development of disease recurrence in HER2 positive breast cancer after adjuvant trastuzumab-based treatment. Sci Rep 2016; 6:35509. [PMID: 27739502 PMCID: PMC5064373 DOI: 10.1038/srep35509] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Abstract
We present the effect of geometrical parameters, particularly shape, on optical absorption enhancement for thin film solar cells based on crystalline silicon (c-Si) and gallium arsenide (GaAs) using a rigorous coupled wave analysis (RCWA) method. It is discovered that the "sweet spot" that maximizes efficiency of solar cells exists for the design of nanophotonic surfaces. For the case of ultrathin, rod array is practical due to the effective optical resonances resulted from the optimum geometry whereas parabola array is viable for relatively thicker cells owing to the effective graded index profile. A specific value of thickness, which is the median value of other two devices tailored by rod and paraboloid, is optimized by truncated shape structure. It is therefore worth scanning the optimum shape of nanostructures in a given thickness in order to achieve high performance.
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Liu L, Zhao XW, Song YM, Li QH, Li P, Liu RR, Zheng MQ, Wen J, Zhao GP. Difference in resistance to Salmonella enteritidis infection among allelic variants of TLR4 (903, 1832) in SPF chickens. J Appl Genet 2015; 57:389-96. [PMID: 26631064 DOI: 10.1007/s13353-015-0324-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 06/14/2015] [Accepted: 10/14/2015] [Indexed: 11/25/2022]
Affiliation(s)
- L Liu
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
- Animal Genetic Resources Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - X W Zhao
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Y M Song
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Q H Li
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - P Li
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - R R Liu
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - M Q Zheng
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - J Wen
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - G P Zhao
- Key Laboratory of Genetics Resources and Utilization of Livestock, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Kim DH, Amanullah SM, Lee HJ, Joo YH, Yun H, Lee SS, Song YM, Kim HY, Kim SC. Effects of L. plantarum Application on Chemical Composition, Fermentation Indices and Fatty Acid Profiles of Barley Silage. ACTA ACUST UNITED AC 2015. [DOI: 10.14397/jals.2015.49.5.157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Luo W, Yu TP, Chen M, Song YM, Zhu ZC, Ma YY, Zhuo HB. Generation of bright attosecond x-ray pulse trains via Thomson scattering from laser-plasma accelerators: errata. Opt Express 2015; 23:7732-7733. [PMID: 25837111 DOI: 10.1364/oe.23.007732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report and correct a couple of calculation errors in the x-ray flux and maximum peak brightness in our paper [Opt. Express 22, 32098 (2014)].
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Luo W, Yu TP, Chen M, Song YM, Zhu ZC, Ma YY, Zhuo HB. Generation of bright attosecond x-ray pulse trains via Thomson scattering from laser-plasma accelerators. Opt Express 2014; 22:32098-32106. [PMID: 25607175 DOI: 10.1364/oe.22.032098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Generation of attosecond x-ray pulse attracts more and more attention within the advanced light source user community due to its potentially wide applications. Here we propose an all-optical scheme to generate bright, attosecond hard x-ray pulse trains by Thomson backscattering of similarly structured electron beams produced in a vacuum channel by a tightly focused laser pulse. Design parameters for a proof-of-concept experiment are presented and demonstrated by using a particle-in-cell code and a four-dimensional laser-Compton scattering simulation code to model both the laser-based electron acceleration and Thomson scattering processes. Trains of 200 attosecond duration hard x-ray pulses holding stable longitudinal spacing with photon energies approaching 50 keV and maximum achievable peak brightness up to 1020 photons/s/mm2/mrad2/0.1%BW for each micro-bunch are observed. The suggested physical scheme for attosecond x-ray pulse trains generation may directly access the fastest time scales relevant to electron dynamics in atoms, molecules and materials.
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Ma LT, Gong Q, Li T, Song YM, Pei FX, Zhao XD, Zhang WL, Liu LM, Zeng JC, Liu H. Relationship between the angle of vertebral screws and spinal lateral angulation after fixation of thoracolumbar fractures via an anterior approach. Genet Mol Res 2014; 13:8135-46. [PMID: 25299198 DOI: 10.4238/2014.october.7.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This study investigated possible contributors to lateral spinal angulation after surgical fixation of thoracolumbar fractures via an anterior approach. We retrospectively examined lateral angulation in 172 cases of thoracolumbar fractures treated in this manner. The coronal Cobb angle and angles of the screws relative to the endplates were determined from radiographs. The patients completed the Short Form 36, Oswestry Disability Index, Japanese Orthopaedic Association Back Pain Evaluation Questionnaire, and Visual Analogue Scale at the final follow-up visit. The mean coronal Cobb angle was 0.75° ± 3.91° (-14.25° to 14.55°) preoperatively, 3.17° ± 4.07° (-8.18° to 14.01°) immediately postoperatively, and 3.46° ± 4.21° (-1.05° to 17.27°) at the final follow-up visit. The superior posterior and inferior anterior screws were more parallel to their respective endplates when the approach was made ≥2 vs ≤1 vertebral levels above the fracture (P < 0.001). Lateral angulation was more likely when the approach was made ≤1 vs ≥2 levels above the fracture (P < 0.001). The coronal Cobb angle differed significantly (P < 0.01) between patients with lumbar and thoracic fractures. The immediate postoperative coronal Cobb angle correlated tightly with the sum of the screw angles (superior plus inferior posterior and/or inferior plus superior anterior). Lateral angulation may occur after surgical fixation of thoracic and lumbar fractures via an anterior approach. Non-parallelism between the vertebral screws and their corresponding endplates may predict postoperative lateral spinal angulation. Postoperative lateral angulation does not correlate with low back pain, quality of life, or preoperative lateral angulation.
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Affiliation(s)
- L T Ma
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Gong
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - T Li
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y M Song
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - F X Pei
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - X D Zhao
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - W L Zhang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - L M Liu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J C Zeng
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H Liu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Chu GM, Kang SN, Nam JM, Kim HY, Ha JH, Ibrahim RIH, Park JH, Kim IS, Song YM. Effects of Dietary Fermented Persimmon Diet on the Meat Quality of Fattening Pigs. Korean J Food Sci Anim Resour 2012. [DOI: 10.5851/kosfa.2012.32.5.604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Abstract
Low-magnitude high-frequency (LMHF) vibrations have the ability to stimulate bone formation and reduce bone loss. However, the anabolic mechanisms that are mediated by vibration in human bone cells at the cellular level remain unclear. We hypothesized that human mesenchymal stromal cells (hMSCs) display direct osteoblastic responses to LMHF vibration signals. Daily exposure to vibrations increased the proliferation of hMSCs, with the highest efficiency occurring at a peak acceleration of 0.3 g and vibrations at 30 to 40 Hz. Specifically, these conditions promoted osteoblast differentiation through an increase in alkaline phosphatase activity and in vitro matrix mineralization. The effect of vibration on the expression of osteogenesis-related factors differed depending on culture method. hMSCs that underwent vibration in a monolayer culture did not exhibit any changes in the expressions of these genes, while cells in three-dimensional culture showed increased expression of type I collagen, osteoprotegerin, or VEGF, and VEGF induction appeared in 2 different hMSC lines. These results are among the first to demonstrate a dose-response effect upon LMHF stimulation, thereby demonstrating that hMSCs are mechanosensitive to LMHF vibration signals such that they could facilitate the osteogenic process.
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Affiliation(s)
- I S Kim
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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Jin SK, Kim IS, Song YM, Kim DH, Lee CY, Hur IC, Park J, Kang SN, Hur SJ. Effect of Packaging Methods on Quality Characteristics of Low-Grade Beef during Aging at 16C. J FOOD PROCESS PRES 2012. [DOI: 10.1111/j.1745-4549.2012.00812.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sang-Keun Jin
- Department of Animal Resources Technology; Gyeongnam National University of Science and Technology; Jinju Gyeongnam Republic of Korea
| | - Il-Suk Kim
- Department of Animal Resources Technology; Gyeongnam National University of Science and Technology; Jinju Gyeongnam Republic of Korea
| | - Young-Min Song
- Department of Animal Resources Technology; Gyeongnam National University of Science and Technology; Jinju Gyeongnam Republic of Korea
| | - Doo-Hwan Kim
- Department of Animal Resources Technology; Gyeongnam National University of Science and Technology; Jinju Gyeongnam Republic of Korea
| | - Chul-Young Lee
- Department of Animal Resources Technology; Gyeongnam National University of Science and Technology; Jinju Gyeongnam Republic of Korea
| | - In-Chul Hur
- Department of Animal Resources Technology; Gyeongnam National University of Science and Technology; Jinju Gyeongnam Republic of Korea
| | - Jaehong Park
- Swine Science and Technology Center; Gyeongnam National University of Science and Technology; Jinju Gyeongnam Republic of Korea
| | - Suk-Nam Kang
- Swine Science and Technology Center; Gyeongnam National University of Science and Technology; Jinju Gyeongnam Republic of Korea
| | - Sun-Jin Hur
- Department of Molecular Biotechnology; Konkuk University; Neungdong-ro 120 Gwangjin-gu Seoul 380-701 Republic of Korea
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Chu GM, Kang SN, Yang JM, Kim HY, Song YM. Effects of a Dietary Fermented Mushroom (Flammulina velutipes) By-Product Diet on Pork Meat Quality in Growing-Fattening Berkshire Pigs. Journal of Animal Science and Technology 2012. [DOI: 10.5187/jast.2012.54.3.199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Chu GM, Kang SN, Kim HY, Ha JH, Kim JH, Jung MS, Ha JW, Lee SD, Jin SK, Kim IS, Shin DK, Song YM. Effect of Substitution of Fermented King Oyster Mushroom By-Products Diet on Pork Quality during Storage. Korean J Food Sci Anim Resour 2012. [DOI: 10.5851/kosfa.2012.32.2.133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Kang SN, Song YM, Kim CW, Kim TW, Chu GM, Yang BS, Jin SK, Kim IS. Effect of Feeding High Carbohydrate-Low Fat Fermented Feed on the Meat Quality Characteristics in Finishing Pigs. Korean J Food Sci Anim Resour 2010. [DOI: 10.5851/kosfa.2010.30.5.826] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Lee SD, Jung HJ, Kim IC, Park JC, Kim SB, Cho SB, Song YM. Effects of Dietary Ginger and Scutellaria Dry Powder on Antioxidant Capacity and IgG Concentration in Colostrum and Plasma of Sows. Journal of Animal Science and Technology 2010. [DOI: 10.5187/jast.2010.52.5.399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
Molecular signals driving the regenerative process in distraction osteogenesis (DO) involve a complex system of cellular behavior triggered by mechanical strain. However, it remains unclear how mesenchymal stromal cells (MSCs) adapt to osteogenic demands during DO. We hypothesized that human MSCs (hMSCs) modulate early osteogenic metabolism during exposure to static stretch. The proliferation of hMSCs was increased by static stretch, which, in turn, suppressed TGF-β1-mediated decreases in cell proliferation. The amount of stretching force applied had little effect on osteoblast differentiation of hMSCs induced by dexamethasone treatment. However, this strain induced sustained production of nitric oxide and vascular endothelial growth factor (VEGF), which are critical factors in angiogenesis, from differentiated hMSCs. Mechanical stretch involved ERK and p38 mitogen-activated protein kinase pathways, the selective inhibitors of which decreased static-stretch-induced VEGF production. These findings provide evidence that hMSCs act to facilitate early osteogenic metabolism during exposure to static stretch.
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Affiliation(s)
- I S Kim
- Dental Research Institute, Seoul National University, Korea
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Song YM, Choi ES, Yu JS, Lee YT. Light-extraction enhancement of red AlGaInP light-emitting diodes with antireflective subwavelength structures. Opt Express 2009; 17:20991-20997. [PMID: 19997337 DOI: 10.1364/oe.17.020991] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We demonstrate the enhancement of light extraction in 633 nm AlGaInP light-emitting diodes (LEDs) with antireflective subwavelength structures (SWS). From the contour plots by the rigorous coupled wave analysis method, it is found that the reduction of the internal reflection strongly depends on the period of SWS. The Ag nanoparticles formed by thermal dewetting were used as an etch mask for dry etch process to fabricate antireflective SWS on the LED surface. The tapered pillars on the GaP were fabricated, on average, with distances below 200 nm, satisfying the required antireflection condition at the emission wavelength. The improvement in light output power by approximately 26.4% was achieved for the fabricated AlGaInP LEDs with SWS compared to the conventional LEDs due to a strongly reduced Fresnel internal reflection at the GaP/air interface. The improved directionality in the far-field pattern was also obtained due to the directional light extraction enhancement.
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Affiliation(s)
- Y M Song
- Department of Information and Communications, Gwangju Institute of Science and Technology, 1 Oryong-dong, Buk-gu, Gwangju 500-712, Republic of Korea
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Song C, Huang YD, Wei Z, Hou Y, Xie WJ, Huang RP, Song YM, Lv HG, Song CF. Polyglycolic Acid-islet grafts improve blood glucose and insulin concentrations in rats with induced diabetes. Transplant Proc 2009; 41:1789-93. [PMID: 19545729 DOI: 10.1016/j.transproceed.2009.01.079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2008] [Revised: 10/25/2008] [Accepted: 01/08/2009] [Indexed: 12/01/2022]
Abstract
Pancreatic islet transplantation is a promising therapeutic treatment for type 1 diabetes mellitus. In the present study, we cocultured islets with or without a polyglycolic acid (PGA) fibrous scaffold for 5 days and transplanted the PGA-islet grafts into the leg muscles of Wistar rats with streptozotocin-induced diabetes; controls were injected with saline. The results showed that the blood glucose concentrations of the group given islets embedded with the PGA scaffold were lower than those without the scaffold or controls. On the other hand, the insulin content of the PGA-islet group was higher at all 5 time points compared with the insulin contents of the other 2 groups. After transplantation, many islets in the PGA-islet grafts showed normal morphology (as seen under the scanning electron microscope) and were surrounded by red blood cells. A fibrous extracellular matrix was visible around the PGA-islet grafts. These results demonstrated that PGA-islet grafts improved blood glucose and insulin concentrations in rats with induced diabetes.
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Affiliation(s)
- C Song
- Department of Applied Chemistry, Harbin Institute of Technology, Harbin, China
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Song YM, Jeong BK, Na BH, Chang KS, Yu JS, Lee YT. High-speed characteristics of vertical cavity surface emitting lasers and resonant-cavity-enhanced photodetectors based on intracavity-contacted structure. Appl Opt 2009; 48:F11-F17. [PMID: 19724307 DOI: 10.1364/ao.48.000f11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We fabricated vertical cavity surface emitting lasers (VCSELs) and resonant-cavity-enhanced photodetectors (RCE-PDs) with GaAs/AlGaAs distributed Bragg reflectors (DBRs), operating at lambda approximately 980 nm, based on an intracavity-contacted structure. The top-DBR mesa diameter of the VCSELs was optimized to 18 microm in terms of slope efficiency, differential series resistance, and 3 dB bandwidth. For VCSELs with an oxide aperture of 4.5 microm and a top-DBR mesa diameter of 18 microm, the threshold current was about 1.2 mA, exhibiting maximum output power of approximately 3.49 mW (at 20 degrees C) with good uniformity. The effect of the overetching in the outermost layer of RCE-PDs on the device performance was also investigated. For RCE-PDs based on the VCSEL structure, a peak responsivity of 0.44 A/W (at lambda approximately 979.7 nm) with a spectral width of approximately 3 nm and a dark current of 68 pA under a bias voltage of -5 V at 20 degrees C was obtained. The maximum 3 dB bandwidths of approximately 11.5 GHz with a modulation current efficiency factor of 5.6 GHz/mA(1/2) at -7 mA and 9 GHz at -7 V were achieved for VCSELs and RCE-PDs, respectively.
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Affiliation(s)
- Y M Song
- Department of Information and Communications, Gwangju Institute of Science and Technology, Gwangju 500-712, South Korea
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Jin SK, Kim IS, Song YM, Kang SN, Jong JY, Oh HS, Min CS. The Effect of Ion Water and Premixed Mineral Supplementation on the Growth Performance, Carcass, and Meat Quality Parameters in Finishing Pigs. Korean J Food Sci Anim Resour 2009. [DOI: 10.5851/kosfa.2009.29.2.252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Jin SK, Kim IS, Song YM, Kang SN, Je YJ, Oh HS, Min CS. The Effect of Dietary Ionized Water and Premixed Mineral on Fatty Acid and Amino Acid Composition in Finishing Pigs. Korean J Food Sci Anim Resour 2008. [DOI: 10.5851/kosfa.2008.28.5.529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Chun S, Huang Y, Xie WJ, Hou Y, Huang RP, Song YM, Liu XM, Zheng W, Shi Y, Song CF. Adhesive growth of pancreatic islet cells on a polyglycolic acid fibrous scaffold. Transplant Proc 2008; 40:1658-63. [PMID: 18589168 DOI: 10.1016/j.transproceed.2008.02.088] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Accepted: 02/26/2008] [Indexed: 11/15/2022]
Abstract
BACKGROUND The use of cultured pancreatic islet cells for diabetes treatment offers several advantages. In theory, cultured cells show greater purity and lower immunogenicity. However, cultured islet cells display a low survival rate in vitro. In the present study we grew islet cells on a polyglycolic acid (PGA) fibrous scaffold to promote cell adhesion, growth, and viability during prolonged culture. METHODS Islets isolated from Wistar rat pancreata were digested with collagenase and purified by the Ficoll method. Cells were grown in culture with or without PGA scaffolds. Islet cell purity was determined using a dithizone stain; viability and survival rates were determined using an AO-PI stain. The insulin-secretion index was detected using radioimmunodetection and the growth on an adhesive scaffold analyzed using an inverted microscope and scanning electron microscope (SEM). RESULTS In contrast to the scaffold-free control group, cells cultured on PGA scaffolds exhibited improved morphology, less cell death, and prolonged survival times. Cell viability and survival rates were significantly increased in scaffolded cells when compared to control cells (P < .05). Increased insulin secretion was observed in the culture solution of scaffolded cells following stimulation with low glucose (5.6 mmol/L) versus high glucose (16.7 mmol/L). The secretion indices of the two groups were significantly different (P < .05). Islet cell growth, as observed under SEM, was tightly circumvolute, adhesive, and three-dimensional. CONCLUSIONS The present results demonstrated that islet cells can successfully grow and survive in culture on a PGA scaffold. These cells exhibited enhanced viability, survival, and insulin secretion.
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Affiliation(s)
- S Chun
- Department of Applied Chemistry, Harbin Institute of Technology, Harbin, China
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Kim HY, Song YM, Jin SK, Kim IS, Kang YS, Lee SD, Chowdappa R, Ha JH, Kang SM. The Effect of Change in Meat Quality Parameters on Pig Longissimus dorsi Muscle by the Addition of Fermented Persimmon Shell Diet. Asian Australas J Anim Sci 2005. [DOI: 10.5713/ajas.2006.286] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Jeong Y, Song YM, Chung PW, Kim EJ, Kang SJ, Kim JM, Cho SS, Kim SE, Byun HS, Na DL. Correlation of ventricular asymmetry with metabolic asymmetry in frontotemporal dementia. J Neuroradiol 2005; 32:247-54. [PMID: 16237363 DOI: 10.1016/s0150-9861(05)83145-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND PURPOSE The clinical presentation of frontotemporal dementia (FTD) is often asymmetrical in terms of both its clinical features and atrophy on MRI. Asymmetry in the lateral ventricle size on structural neuroimaging in FTD patients may have clinical significance. However, this has not been systematically investigated yet. This study compares the ventricular asymmetry seen on MRI with that of the asymmetric glucose metabolism using FDG-PET in patients with FTD. METHODS Nineteen FTD patients who underwent both brain MRI and FDG-PET were retrospectively selected. As control groups, 23 and 11 age and sex-matched healthy normal subjects underwent either brain MRI or FDG-PET, respectively. The ventricular asymmetry index (VAI) was obtained in two ways: by visual rating (VAI-V) and by measuring the lateral ventricular volumes (VAI-ROI). The hemispheric asymmetry of the glucose metabolism on FDG-PET (MAI) was assessed in three ways: 1) by visual rating (MAI-V), 2) by counting the FDG activity of each hemisphere on normalized and smoothed PET images (MAI-ROI) and 3) by counting the number of voxels with significant hypometabolism based on statistical parametric mapping results (MAI-SPM). RESULTS The VAIs on MRI (VAI-V and VAI-ROI) were highly correlated, as were the MAIs (MAI-V, MAI-ROI, and MAI-SPM) on FDG-PET. More importantly, the VAIs on MRI and the MAIs on FDG-PET showed high correlation. CONCLUSIONS Ventricular asymmetry in FTD patients was common (78.9%) and there was a high correlation between the ventricular structural asymmetry and the hemispheric metabolic asymmetry. Therefore, it would be reasonable to interpret that the hemisphere with larger ventricle on MRI in FTD patients is undergoing a more active degenerative process.
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Affiliation(s)
- Y Jeong
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 ILwon-dong, Kangnam-ku, Seoul, 135-710 Korea
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Cho HJ, Song YM, Smith GD, Ebrahim S. Trends in socio-economic differentials in cigarette smoking behaviour between 1990 and 1998: a large prospective study in Korean men. Public Health 2005; 118:553-8. [PMID: 15530934 DOI: 10.1016/j.puhe.2004.04.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2003] [Revised: 04/06/2004] [Accepted: 04/28/2004] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To investigate the magnitude and time trends in socio-economic differentials in cigarette smoking behaviour. STUDY DESIGNS A prospective observational study of male civil servants followed-up for 8 years. SETTING All civil service offices in Korea. PARTICIPANTS A total of 322,991 male civil servants aged 30-49 years on whom information on monthly salary was available and who had reported cigarette smoking behaviour between 1990 and 1998. RESULTS Smoking prevalence was 60.1% in 1990 and was inversely associated with salary level. The difference in smoking prevalence between the highest and the lowest salary groups gradually widened from 13.0% in 1990 to 16.1% in 1998. The relative index of inequality (RII) as a measure of socio-economic inequality in smoking behaviour was 1.91 [95% confidence interval (CI) 1.86-1.97] in 1990 and increased between 1990 and 1998. The RII for smoking cessation was 0.60 in 1990 (95% CI 0.58-0.62) and gradually decreased as time lapsed. CONCLUSIONS An increasing trend in socio-economic inequality in smoking behaviour was observed in this study.
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Affiliation(s)
- H J Cho
- Department of Family Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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Chen MD, Yang VC, Alexander PS, Lin PY, Song YM. Effects of selected minerals on leptin secretion in streptozotocin-induced hyperglycemic mice. Exp Biol Med (Maywood) 2001; 226:836-40. [PMID: 11568306 DOI: 10.1177/153537020122600905] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The effects of lithium, magnesium, vanadate, and zinc on leptinemia and leptin secretion by adipose tissue were investigated in streptozotocin- (STZ) induced hyperglycemic mice. After the administration of studied minerals in drinking water for 4 weeks, fasting serum leptin concentrations were elevated, accompanied by normoglycemia in STZ-injected mice, regardless which mineral was provided (P < 0.05). However, the in vitro administration of lithium, magnesium, and vanadate did not significantly influence the leptin secretion of adipose tissue. A low zinc treatment (0.1 mM) augmented, whereas both a pharmacological treatment of zinc (1 mM) and zinc depletion (1 mM TPEN) attenuated, leptin secretion (P < 0.05). The present study shows that STZ-induced hyperglycemic mice have hypoleptinemia and reduced leptin secretion by adipose tissue. Moreover, these defects can be improved by a moderate zinc administration.
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Affiliation(s)
- M D Chen
- Department of Medical Laboratories, Taichung Veterans General Hospital, 160 Taichung-Kang Road, Section 3, Taichung 40705, Taiwan
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Liu LM, Song YM, Gong Q. [Use of intraoperative red blood cell salvage in the anterior stabile operation of spinal fracture]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2001; 15:318-9. [PMID: 11761865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To observe the clinical results in the anterior stabile operation of spinal fracture using red blood salvage. METHODS Nineteen cases with spinal fracture were performed the anterior decompress operation. Blood cell salvage were used during operation. Other 20 cases were also reviewed as control group, who were received the same operation without blood cell salvage. RESULTS In the 19 cases, average volume of autologous transfusion was 536 ml. Only two cases had homologous transfusion requirements. In the control group, all cases needed homologous transfusion (averaged 947 ml). CONCLUSION In the anterior decompress operation, the intraoperative blood salvage is highly effective in reducing transfusion and also improves the security of operation.
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Affiliation(s)
- L M Liu
- Department of Orthopedic Surgery, First University Hospital, West China University of Medical Sciences, Chengdu Sichuan, P. R. China 610041
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Abstract
The relation between body mass index (kg/m2) and noncoronary mortality is not well established. To study this relation, a population with low coronary mortality may be especially useful. We conducted a 12-year follow-up study of 235,398 Korean men 40-64 years of age. Study subjects had undergone health examinations in 1986 (baseline) and 1990. We excluded subjects with substantial weight loss during this period. There were 13,387 deaths, including 600 deaths from coronary events, between 1990 and 1998. We estimated the relation of body mass index to the risk of death after adjusting for common risk factors. There was a positive relation between body mass index and coronary mortality, but this relation was attenuated after serum total cholesterol, blood pressure, and fasting serum glucose were taken into account. A J-shaped relation with cerebrovascular mortality was also attenuated after adjustment. Even after this adjustment and exclusion of early deaths between 1990 and 1994, the relation of body mass index to all-cause (U-shaped), cancer (J-shaped), and noncancer noncoronary noncerebrovascular (inverse J-shaped) mortality remained. Both high and low body mass index were related to increased mortality among these Korean men.
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Affiliation(s)
- Y M Song
- Department of Family Medicine, Samsung Medical Center, SungKyunKwan University School of Medicine, Seoul, Korea
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Song YM, Sheu WH, Lee WJ. Acute biochemical variations induced by calcium citrate and calcium carbonate in Type 2 diabetic patients: impaired calcium absorption in Type 2 diabetic patients with prolonged gastric emptying time. J Diabetes Complications 2001; 15:97-102. [PMID: 11274906 DOI: 10.1016/s1056-8727(00)00128-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Calcium supplementation is important in the treatment of osteoporosis, a disease that may also occur in diabetic patients. The acute effects of calcium supplementation and their relationship to gastric emptying time, however, have rarely been studied in type 2 diabetic patients. We evaluated the acute biochemical variations induced by the administration of two different calcium preparations, calcium citrate and calcium carbonate, in 16 (male/female: 13/3) Chinese diabetic patients. Serum free calcium, intact parathyroid hormone (i-PTH), and amount of urinary excretion of calcium (uCal/uCr) were evaluated after a single dose of 1200 mg of elemental calcium in each preparation. The free calcium levels did not change significantly in either group. However, significant suppression of i-PTH after calcium citrate administration at 1 h (17.1+/-2.0 pg/ml, P=.023), and after calcium carbonate administration at 2 h (14.2+/-2.5 pg/ml, P=.000), was noted when compared with individual basal level (21.2+/-2.5 and 19.3+/-2.4 pg/ml, respectively). The suppressive effect on i-PTH lasted for 6 h after calcium citrate and 5 h after calcium carbonate preparation of the 6-h study period. After administration of calcium citrate, the uCal/uCr of 2-to-4-h collection was significantly higher than that of the basal and 0-to-2-h collections: 0.25+/-0.04 vs. 0.19+/-0.03, P=.025; and 0.25+/-0.04 vs. 0.19+/-0.02, P=.014, respectively. A similar finding was observed for calcium carbonate: 0.23+/-0.03 vs. 0.18+/-0.02, P=.019; and 0.23+/-0.03 vs. 0.18+/-0.02, P=.011, respectively. We conclude that, in this group of Chinese type 2 diabetic patients in our study, the oral administration of 1200 mg elemental calcium in either calcium citrate or calcium carbonate preparation can induce a significant suppression of i-PTH. This may be helpful in preventing or treating osteoporosis. A prolonged gastric emptying time in these diabetic subjects may contribute to the non-significant alteration in free calcium levels after the administration of either calcium preparation.
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Affiliation(s)
- Y M Song
- Division of Endocrinology/Metabolism, Department of Medicine, Taichung Veterans General Hospital, No. 160, Section 3, Taichung-Kang Road, Taichung 407, Taiwan.
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Kim YS, Park HS, Sunwoo S, Byeon JJ, Song YM, Seo HG, Kim CH, Cheon KS, Yoo SM, Lee JK. Short-term safety and tolerability of antihypertensive agents in Korean patients: an observational study. Pharmacoepidemiol Drug Saf 2000; 9:603-9. [PMID: 11338920 DOI: 10.1002/pds.554] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE In order to assess the short-term safety and tolerability of newly prescribed antihypertensive monotherapies in Korean patients, a prospective study was carried out. METHODS A total of 1181 patients were observed from July 1997 to August 1999. At 2, 4, 8 and 12 weeks after initiation of antihypertensive monotherapy, the patients were evaluated for whether treatment was to be continued and the development of any adverse reactions. RESULTS During the first 12 weeks, the percentage of subjects continuing with their initial angiotensin converting enzyme inhibitors (ACEI) (40.7%) was substantially lower than that of subjects continuing with angiotensin II receptor antagonists (ARA) (66.2%), alpha-blockers (63.0%), calcium channel blockers (CCB) (61.3%), beta-blockers (55.8%), and diuretics (53.5%), respectively (P < 0.01). The following adverse reactions were detected: cough (7.5%), headache (6.1%), dizziness (3.9%), flushing (3.7%) and impotence (2.4%). Cough, headache, and flushing were more frequent in women, and impotence and loss of libido were more frequent in men (P < 0.05). The incidence of cough associated with ACEI (27.9%) was higher than that associated with the other classes of drugs (P < 0.01). CONCLUSIONS The tolerability of antihypertensive medication was highest in Korean patients treated with ARAs, followed by CCBs, beta-blockers, diuretics, alpha-blockers, and ACEIs. The incidences of adverse reactions were different by sex, age and drug class.
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