1
|
Li D, Wang X, Park DJ, Lee DH, Oh S. Inhibitory Effects of Latilactobacillus curvatus BYB3 Cell-Free Extract on Human Melanoma B16F10 Cells and Tumorigenic Mice. J Microbiol Biotechnol 2024; 34:589-595. [PMID: 38044715 PMCID: PMC11016762 DOI: 10.4014/jmb.2309.09002] [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] [Received: 09/04/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 12/05/2023]
Abstract
Latilactobacillus curvatus BYB3 (BYB3) is a species of lactic acid bacteria, formerly named Lactobacillus curvatus, which is isolated from kimchi. In this study, the effect of BYB3, Lactobacillus rhamnosus GG, and Lactobacillus acidophilus GP1B strain extracts at various concentrations was examined on B16F10, a mouse melanoma cell line. Cell viability was examined via MTT assay, and the results indicated that compared to the other two probiotics, BYB3 significantly decreased the total percentages of viable cells. The effects of BYB3 on cell migration and proliferation in B16F10 cells were evaluated using wound healing mobility and proliferation assays, respectively; the results indicated that BYB3 inhibits cell migration and proliferation in a concentration-dependent manner. Using human dermal fibroblast cells to investigate BYB3 extract in vivo had no effect on skin-related cells. Nonetheless, the BYB3 extract inhibited tumor growth in a mouse model, as demonstrated by liver slices. Therefore, this suggests that using BYB3 extract to inhibit melanoma may be a novel approach.
Collapse
Affiliation(s)
- Dingyun Li
- Division of Animal Science, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Xing Wang
- Division of Animal Science, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Biochemistry Microbiology and Immunology, Wayne State University, Detroit, MI 48202, USA
| | - Dong-June Park
- Korea Food Research Institute, Jeollabuk-do 55365, Republic of Korea
| | - Dong Hun Lee
- Department of Biological Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sejong Oh
- Division of Animal Science, Chonnam National University, Gwangju 61186, Republic of Korea
| |
Collapse
|
2
|
Kim B, Kim K, Xu X, Lee H, Pathiraja D, Park DJ, Choi IG, Oh S. Complete genome and two plasmids sequences of Lactiplantibacillus plantarum L55 for probiotic potentials. J Anim Sci Technol 2023; 65:1341-1344. [PMID: 38616876 PMCID: PMC11007291 DOI: 10.5187/jast.2023.e37] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/02/2023] [Accepted: 04/12/2023] [Indexed: 04/16/2024]
Abstract
In this study, we report the complete genome sequence of Lactiplantibacillus plantarum L55, a probiotic strain of lactic acid bacteria isolated from kimchi. The genome consists of one circular chromosome (2,077,416 base pair [bp]) with a guanine cytosine (GC) content of 44.5%, and two circular plasmid sequences (54,267 and 19,592 bp, respectively). We also conducted a comprehensive analysis of the genome, which identified the presence of functional genes, genomic islands, and antibiotic-resistance genes. The genome sequence data presented in this study provide insights into the genetic basis of L. plantarum L55, which could be beneficial for the future development of probiotic applications.
Collapse
Affiliation(s)
- Bogun Kim
- Department of Biotechnology, College of
Life Sciences and Biotechnology, Korea University, Seoul
02841, Korea
| | - Kiyeop Kim
- Division of Animal Science, Chonnam
National University, Gwangju 61186, Korea
| | - Xiaoyue Xu
- Department of Biotechnology, College of
Life Sciences and Biotechnology, Korea University, Seoul
02841, Korea
| | - Hyunju Lee
- Department of Biotechnology, College of
Life Sciences and Biotechnology, Korea University, Seoul
02841, Korea
| | - Duleepa Pathiraja
- Department of Biotechnology, College of
Life Sciences and Biotechnology, Korea University, Seoul
02841, Korea
| | | | - In-Geol Choi
- Department of Biotechnology, College of
Life Sciences and Biotechnology, Korea University, Seoul
02841, Korea
| | - Sejong Oh
- Division of Animal Science, Chonnam
National University, Gwangju 61186, Korea
| |
Collapse
|
3
|
Are C, Tyler D, Howe J, Olivares A, Nissan A, Zippel D, Gupta A, Savant D, D'Ugo D, Rubio I, Bargallo-Rocha JE, Martinez-Said H, Takeuchi H, Taketomi A, Oliveira AF, Ribeiro HSC, Cheema MA, Majid HJ, Chen G, Roviello F, Gronchi A, Leon A, Lee WY, Park DJ, Park J, Auer R, Gawad WA, Zaghloul A. Global Forum of Cancer Surgeons: Cancer Surgery During the COVID-19 Pandemic: Impact and Lessons Learned. Ann Surg Oncol 2022; 29:2773-2783. [PMID: 35211857 PMCID: PMC8870071 DOI: 10.1245/s10434-022-11506-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/14/2022] [Indexed: 11/18/2022]
Abstract
Background The purpose of this article is to summarize the opinions of the surgical oncology leaders from the Global Forum of Cancer Surgeons (GFCS) about the global impact of COVID-19 pandemic on cancer surgery. Methods A panel session (virtual) was held at the annual Society of Surgical Oncology 2021 International Conference on Surgical Cancer Care to address the impact of COVID-19 on cancer surgery globally. Following the virtual meeting, a questionnaire was sent to all the leaders to gather additional opinions. The input obtained from all the leaders was collated and analyzed to understand how cancer surgeons from across the world adapted in real-time to the impact of COVID-19 pandemic. Results The surgical oncology leaders noted that the COVID-19 pandemic led to severe disruptions in surgical cancer care across all domains of clinical care, education, and research. Several new changes/protocols associated with increased costs were implemented to deliver safe care. Leaders also noted that preexisting disparities in care were exacerbated, and the pandemic had a detrimental effect on well-being and financial status. Conclusions The COVID-19 pandemic has led to severe disruptions in surgical cancer care globally. Leaders of the GFCS opined that new strategies need to be implemented to prepare for any future catastrophic events based on the lessons learned from the current events. The GFCS will embark on developing such a roadmap to ensure that surgical cancer care is preserved in the future regardless of any catastrophic global events.
Collapse
Affiliation(s)
| | - D Tyler
- Society of Surgical Oncology, Rosemont, IL, USA
| | - J Howe
- Society of Surgical Oncology, Rosemont, IL, USA
| | - A Olivares
- Society of Surgical Oncology, Rosemont, IL, USA
| | - A Nissan
- Israeli Society of Surgical Oncology, Tel Aviv, Israel
| | - D Zippel
- Israeli Society of Surgical Oncology, Tel Aviv, Israel
| | - A Gupta
- Indian Association of Surgical Oncology, Uttar Pradesh, Varanasi, India
| | - D Savant
- Indian Association of Surgical Oncology, Uttar Pradesh, Varanasi, India
| | - D D'Ugo
- European Society of Surgical Oncology, Brussels, Belgium
| | - I Rubio
- European Society of Surgical Oncology, Brussels, Belgium
| | | | | | - H Takeuchi
- Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - A Taketomi
- Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - A F Oliveira
- Brazilian Society of Surgical Oncology, Rio de Janeiro, Brazil
| | | | - M A Cheema
- Pakistan Society of Surgical Oncology, Lahore, Pakistan
| | - H J Majid
- Pakistan Society of Surgical Oncology, Lahore, Pakistan
| | - G Chen
- Chinese Society of Clinical Oncology, Beijing, China
| | - F Roviello
- Italian Society of Surgical Oncology, Milan, Italy
| | - A Gronchi
- Italian Society of Surgical Oncology, Milan, Italy
| | - A Leon
- Pontifical Catholic University of Chile, Santiago, Chile
| | - W Y Lee
- Korean Society of Surgical Oncology, Seoul, Korea
| | - D J Park
- Korean Society of Surgical Oncology, Seoul, Korea
| | - J Park
- Canadian Society of Surgical Oncology, Ottawa, ON, Canada
| | - R Auer
- Canadian Society of Surgical Oncology, Ottawa, ON, Canada
| | - W A Gawad
- Egyptian Society of Surgical Oncology, Cairo, Egypt
| | - A Zaghloul
- Egyptian Society of Surgical Oncology, Cairo, Egypt
| |
Collapse
|
4
|
Park DJ, Kim YW, Yang HK, Ryu KW, Han SU, Kim HH, Hyung WJ, Park JH, Suh YS, Kwon OK, Yoon HM, Kim W, Park YK, Kong SH, Ahn SH, Lee HJ. Short-term outcomes of a multicentre randomized clinical trial comparing laparoscopic pylorus-preserving gastrectomy with laparoscopic distal gastrectomy for gastric cancer (the KLASS-04 trial). Br J Surg 2021; 108:1043-1049. [PMID: 34487147 DOI: 10.1093/bjs/znab295] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 04/20/2021] [Accepted: 07/14/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND There remain concerns about the safety and functional benefit of laparoscopic pylorus-preserving gastrectomy (LPPG) compared with laparoscopic distal gastrectomy (LDG). This study evaluated short-term outcomes of a randomized clinical trial (RCT) comparing LPPG with LDG for gastric cancer. METHODS The Korean Laparoendoscopic Gastrointestinal Surgery Study (KLASS)-04 trial was an investigator-initiated, open-label, parallel-assigned, superiority, multicentre RCT in Korea. Patients with cT1N0M0 cancer located in the middle third of the stomach at least 5 cm from the pylorus were randomized to undergo LPPG or LDG. Participants, care givers and those assessing the outcomes were not blinded to group assignment. Outcomes were 30-day postoperative morbidity rate and death at 90 days. RESULTS Some 256 patients from nine institutions were randomized (LPPG 129 patients, LDG 127 patients) between July 2015 and July 2017 and outcomes for 253 patients were analysed. Postoperative complications within 30 days were seen in 19.3 and 15.5 per cent in the LPPG and LDG groups respectively (P = 0·419). Postoperative pyloric stenosis was observed in nine (7.2 per cent) and two (1·5 per cent) patients in the LPPG and LDG groups (P = 0·026) respectively. In multivariable analysis higher BMI was a risk factor for postoperative complications (odds ratio 1·17, 95 per cent c.i. 1·04 to 1·32; P = 0·011). Death at 90 days was zero in both groups. CONCLUSION Postoperative complications and mortality was comparable in patients undergoing LPPG and LDG. Registration number: NCT02595086 (http://www.clinicaltrials.gov).
Collapse
Affiliation(s)
- D J Park
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea.,Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Y-W Kim
- Department of Surgery, National Cancer Centre, Goyang, Korea
| | - H-K Yang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - K W Ryu
- Department of Surgery, National Cancer Centre, Goyang, Korea
| | - S-U Han
- Department of Surgery, Ajou University Hospital, Suwon, Korea
| | - H-H Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - W-J Hyung
- Department of Surgery, Yonsei University Severance Hospital, Seoul, Korea
| | - J H Park
- Department of Surgery, Gyeongsang National University Hospital, Daegu, Korea
| | - Y-S Suh
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea.,Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - O K Kwon
- Department of Surgery, Kyungpook National University Hospital, Daegu, Korea
| | - H M Yoon
- Department of Surgery, National Cancer Centre, Goyang, Korea
| | - W Kim
- Department of Surgery, Yeouido St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Y-K Park
- Department of Surgery, Chonnam National University Medical School, Hwasun, Korea
| | - S-H Kong
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - S H Ahn
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - H-J Lee
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| |
Collapse
|
5
|
Yun B, Maburutse BE, Kang M, Park MR, Park DJ, Kim Y, Oh S. Short communication: Dietary bovine milk-derived exosomes improve bone health in an osteoporosis-induced mouse model. J Dairy Sci 2020; 103:7752-7760. [PMID: 32622594 DOI: 10.3168/jds.2019-17501] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
Osteoporosis is a systemic skeletal disease characterized by low bone mass and micro-architectural deterioration of bone tissue, with a consequent increase in bone fragility and fracture susceptibility. In an aged society with increased life expectancy, the incidence rate of osteoporosis is also rapidly increasing. Inadequate nutrition may negatively influence bone metabolism. Recently, many studies have investigated the functionality of milk-derived exosomes, which play important roles in cell-to-cell communication. However, there are few reports of how milk-derived exosomes influence osteoblast proliferation and differentiation. Here, we determined whether bovine colostrum-derived exosomes promote anti-osteoporosis in vitro and in vivo. Tartrate-resistant acid phosphatase-stained cells were significantly inhibited in Raw264.7 cells treated with exosomes, indicating reduced osteoclast differentiation. We induced osteoporosis in mice using glucocorticoid pellets after orally administering exosomes for 2 mo. Interestingly, the bone mineral density of exosome-fed mouse groups was significantly improved compared with the glucocorticoid-induced osteoporosis group without exosome treatment. In addition, Lactobacillus were decreased in the gut microbiota community of osteoporosis-induced mice, but the gut microbiota community composition was effectively restored by exosome intake. Taken together, we propose that exosomes isolated from bovine colostrum could be a potential candidate for osteoporosis prevention, bone remodeling improvement, and inhibition of bone resorption. To our knowledge, this is the first time that a protective effect of milk exosomes against osteoporosis has been demonstrated in vivo. Our results strongly suggest that bovine colostrum exosomes might be used as a prophylaxis to prevent the onset of osteoporosis. Indeed, our results offer promising alternative strategies in the nutritional management of age-related bone complications.
Collapse
Affiliation(s)
- B Yun
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - B E Maburutse
- Department of Animal Sciences and Health, Marondera University of Agricultural Sciences and Health, PO Box 35, Marondera, Zimbabwe
| | - M Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - M R Park
- Department of Pharmacology and System Physiology, University of Cincinnati, OH 45267
| | - D J Park
- Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - Y Kim
- Department of Agricultural Biotechnology and Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.
| | - S Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea.
| |
Collapse
|
6
|
Seo TR, Lee I, Chun YG, Park DJ, Lee SH, Kim BK. Improved Stability of Polyglycerol Polyricinoleate-Substituted Nanostructured Lipid Carrier Cholecalciferol Emulsions with Different Carrier Oils. J Food Sci 2019; 84:782-791. [PMID: 30875433 DOI: 10.1111/1750-3841.14423] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/06/2018] [Accepted: 11/24/2018] [Indexed: 11/30/2022]
Abstract
Cholecalciferol, also known as vitamin D3 , is a recognized therapeutic agent for treatment of bone diseases and cancer. However, instability and poor bioavailability have been major challenges for delivering Vitamin D3 . The objective of this study was to formulate improved nanostructured lipid carrier (NLC) vitamin D3 emulsions. We tested the effect of different carrier oils and the use of a solid lipid nanoparticle emulsifier, polyglycerol polyricinoleate (PGPR) on the stability of the vitamin D3 emulsions. In contrast to the control that used glyceryl monostearate (GMS) the PGPR substitution resulted in relatively small particle sizes (0.30 to 0.43 μm), with high absolute value of zeta potentials (39.5 to 67.8 mV) and high encapsulation efficiency (85.2% to 90.4%). The stability of the NLC emulsions against environmental stresses was evaluated under varying conditions of ionic strength, pH, freeze-thaw cycles, and storage at different temperatures. Although NLC emulsions were stable at high ionic strengths, they were found to be unstable at low pH (<3), which led to aggregation and coalescence of emulsion droplets. In case of freeze-thaw stress, although relatively stable compared to control NLC, the PGPR substituted groups exhibited a slight increase in particle size and a decrease in zeta potential when the cycle was repeated five times. Additionally, we found that PGPR-substituted emulsions showed higher liquid dispersion stability than controls at 25 and 65 °C. Thus, we have formulated a modified NLC vitamin D3 emulsion that can be widely used in the food industry. PRACTICAL APPLICATION: Vitamin D3 , an essential micronutrient, is often added as supplements in food products and beverages for added health benefits. However, the stability of vitamin D3 emulsions that are used in the preparation of such products has been a major concern. We have developed a modified emulsion that has improved stability against environmental stresses. We believe, in future, this formulation can be efficiently used in the food industry.
Collapse
Affiliation(s)
- Tae-Rang Seo
- Korea Food Research Inst., Wanju, Jeonbuk, 55365, Republic of Korea
| | - Inil Lee
- Dept. of Food Science and Biotechnology, Inst. of Life Science and Resources, Kyung Hee Univ., Seocheon 1, Yongin, 446-701, Republic of Korea
| | - Yong-Gi Chun
- Korea Food Research Inst., Wanju, Jeonbuk, 55365, Republic of Korea
| | - Dong-June Park
- Korea Food Research Inst., Wanju, Jeonbuk, 55365, Republic of Korea
| | - Sang-Hoon Lee
- Korea Food Research Inst., Wanju, Jeonbuk, 55365, Republic of Korea
| | - Bum-Keun Kim
- Korea Food Research Inst., Wanju, Jeonbuk, 55365, Republic of Korea
| |
Collapse
|
7
|
Park DJ, Shin JH, Park KH, Ryu HC. Electrically controllable THz asymmetric split-loop resonator with an outer square loop based on VO 2. Opt Express 2018; 26:17397-17406. [PMID: 30119551 DOI: 10.1364/oe.26.017397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/18/2018] [Indexed: 06/08/2023]
Abstract
In this paper, we propose an asymmetric split-loop resonator with an outer square loop (ASLR-OSL) based on vanadium dioxide (VO2) which can actively control the transmission characteristics of a terahertz wave while maintaining a high quality factor of the asymmetric split-loop resonator (ASLR) by adding an outer square loop. The proposed ASLR-OSL demonstrated transmission characteristics similar to those of ASLR, and the transmission characteristics of ASLR-OSL were successfully controlled by directly applying a bias voltage. These results show a simple method for imposing active properties on a common metamaterial having a high quality factor by adding a loop structure.
Collapse
|
8
|
Eom SH, Chun YG, Park CE, Kim BK, Lee SH, Park DJ. Application of freeze-thaw enzyme impregnation to produce softened root vegetable foods for elderly consumers. J Texture Stud 2018; 49:404-414. [PMID: 29896872 DOI: 10.1111/jtxs.12341] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/01/2018] [Accepted: 05/09/2018] [Indexed: 11/29/2022]
Abstract
The aims of this study were to determine the viability of using freeze-thaw infusion (FI) technology to produce a range of root vegetables using enzyme treatments with improved texture characteristics for elderly consumers with swallowing difficulties. We applied enzyme impregnation as a technology to soften the textures of root vegetables commonly consumed in Korea; balloon flower root (Platycodon grandiflorus), burdock root (Arctium lappa L.), carrot (Daucus carota L.), and lotus root (Nelumbo nucifera Gaertn) through the use of a texture analyzer after the FI of a commercial enzyme. Out of 15 commercial enzymes that were analyzed, three enzymes exhibited a marked softening effect on the tested carrots, burdock roots, balloon flower roots, and lotus roots. The hardness of the enzymes-treated food materials reached 1.4 × 104 N/m2 for carrots, 3.0 × 104 N/m2 for burdock roots, of 3.0 × 104 N/m2 for balloon flower roots, and 3.2 × 104 N/m2 for lotus roots without changing the original shapes of the samples. These findings confirmed the potential benefits of softening carrots, lotus roots burdock roots, and balloon flower roots and will contribute to the development of foods that can be easily eaten as part of a balanced diet by elderly adults with eating difficulties.
Collapse
Affiliation(s)
- Sung-Hwan Eom
- Department of Food Science and Technology, Dong-Eui University, Busan, Republic of Korea
| | - Yong-Gi Chun
- Korea Food Research Institute, Wanju, Jeonbuk, Republic of Korea
| | - Chan-Eun Park
- Korea Food Research Institute, Wanju, Jeonbuk, Republic of Korea
| | - Bum-Keun Kim
- Korea Food Research Institute, Wanju, Jeonbuk, Republic of Korea
| | - Sang-Hoon Lee
- Korea Food Research Institute, Wanju, Jeonbuk, Republic of Korea
- University of Science and Technology, Daejeon, Republic of Korea
| | - Dong-June Park
- Korea Food Research Institute, Wanju, Jeonbuk, Republic of Korea
| |
Collapse
|
9
|
Boyle SM, Ali N, Olszanski AJ, Park DJ, Xiao G, Guy S, Doyle AM. Donor-Derived Metastatic Melanoma and Checkpoint Inhibition. Transplant Proc 2018; 49:1551-1554. [PMID: 28838438 DOI: 10.1016/j.transproceed.2017.06.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/30/2017] [Accepted: 06/16/2017] [Indexed: 11/29/2022]
Abstract
Donor-derived malignancy, particularly melanoma, is a rare but known complication of organ transplantation. Here we describe a case of metastatic melanoma in a deceased-donor kidney transplant recipient. After diagnosis, the patient was successfully treated with cessation of immunosuppression, explantation of the renal allograft, and novel melanoma therapies, including the mutation-targeted agents dabrafenib and trametinib and the immune checkpoint inhibitor nivolumab. These 2 new classes of melanoma therapy have revolutionized the course of metastatic melanoma, altering it from one of nearly certain mortality to one of potential cure. This case reviews the mechanisms of action of these therapies and reports our experience with them in the rare setting of donor-derived melanoma in a dialysis-dependent patient.
Collapse
Affiliation(s)
- S M Boyle
- Division of Nephrology, Drexel University College of Medicine, Philadelphia, Pennsylvania.
| | - N Ali
- Division of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - A J Olszanski
- Division of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - D J Park
- Division of Transplant Surgery, Hahnemann University Hospital, Philadelphia, Pennsylvania
| | - G Xiao
- Division of Transplant Surgery, Hahnemann University Hospital, Philadelphia, Pennsylvania
| | - S Guy
- Division of Transplant Surgery, Hahnemann University Hospital, Philadelphia, Pennsylvania
| | - A M Doyle
- Division of Nephrology, University of Virginia School of Medicine, Charlottesville, Virginia
| |
Collapse
|
10
|
Yun B, Song M, Park DJ, Oh S. Beneficial Effect of Bifidobacterium longum ATCC 15707 on Survival Rate of Clostridium difficile Infection in Mice. Korean J Food Sci Anim Resour 2017; 37:368-375. [PMID: 28747822 PMCID: PMC5516063 DOI: 10.5851/kosfa.2017.37.3.368] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 03/07/2017] [Revised: 04/29/2017] [Accepted: 05/08/2017] [Indexed: 12/28/2022] Open
Abstract
Clostridium difficile infection (CDI) is the main cause of hospital-acquired diarrhea that can cause colitis or even death. The medical-treatment cost and deaths caused by CDI are increasing annually worldwide. New approaches for prevention and treatment of these infections are needed, such as the use of probiotics. Probiotics, including Bifidobacterium spp. and Lactobacillus, are microorganisms that confer a health benefit to the host when administered in adequate amounts. The effect of Bifidobacterium longum ATCC 15707 on infectious disease caused by C. difficile 027 was investigated in a mouse model. The survival rates for mice given the pathogen alone, and with live cells, or dead cells of B. longum were 40, 70, and 60%, respectively. In addition, the intestinal tissues of the B. longum-treated group maintained structural integrity with some degree of damage. These findings suggested that B. longum ATCC 15707 has a function in repressing the infectious disease caused by C. difficile 027.
Collapse
Affiliation(s)
- Bohyun Yun
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea
| | - Minyu Song
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | | | - Sejong Oh
- Division of Animal Science, Chonnam National University, Gwangju 61186, Korea
| |
Collapse
|
11
|
Park SO, Kim WK, Park DJ, Lee SJ. Effect of blanching time on the quality characteristics of elderly-friendly kkakdugi. Food Sci Biotechnol 2017; 26:419-425. [PMID: 30263559 DOI: 10.1007/s10068-017-0057-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 12/23/2016] [Accepted: 12/27/2016] [Indexed: 10/19/2022] Open
Abstract
For the development of elderly-friendly food, the physicochemical properties and preferences of cooked kkakdugi prepared with various blanching times were examined. As fermentation progressed, significant differences in samples were observed with overall decreasing trends of pH, reducing sugar, lightness (L), yellowness (b), and hardness. Titratable acidity, redness (a), and lactic acid increased during the storage time. The preference test showed that the sample blanched for 3 min (SK3) scored the highest in aroma, taste, texture, and overall acceptance. Overall, SK3 was the most preferred as cooked kkakdugi, which helps elderly people suffering from mastication and deglutition.
Collapse
Affiliation(s)
- Sun-Ock Park
- 1Department of Culinary and Food Service Management, Sejong University, Seoul, 05006 Korea
| | - Wan-Keun Kim
- 1Department of Culinary and Food Service Management, Sejong University, Seoul, 05006 Korea
| | - Dong-June Park
- 2Korea Food Research Institute, Seongnam, Gyeonggi, 13539 Korea
| | - Seung-Joo Lee
- 1Department of Culinary and Food Service Management, Sejong University, Seoul, 05006 Korea
| |
Collapse
|
12
|
Park DJ, Kang JH, Lee JW, Lee KE, Kim TJ, Park YW, Lee JS, Choi YD, Lee SS. Risk factors to predict the development of chronic kidney disease in patients with lupus nephritis. Lupus 2017; 26:1139-1148. [DOI: 10.1177/0961203317694257] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Objectives We analyzed the clinical follow-up results of 88 lupus nephritis patients to find prognostic factors for the development of chronic kidney disease in ethnically homogeneous Korean patients with biopsy-proven lupus nephritis. Methods Sociodemographic, clinical, laboratory, and treatment-related data at the time of kidney biopsy and during follow-up were obtained. Renal biopsy specimens were reclassified according to the International Society of Pathology/Renal Pathology Society classification, separately, by two renal pathologists blinded to the previous classification. Univariate and multivariate analyses were performed using the Cox proportional hazard regression model to identify independent risk factors for chronic kidney disease in lupus nephritis patients. Results Eighteen of 88 patients (20.5%) developed chronic kidney disease during a mean follow-up of 47.6 months (range: 12–96 months). Patients who developed chronic kidney disease were older at onset of lupus nephritis, had less education, and were more likely to have hypertension; they had lower serum albumin levels, lower platelet levels, higher serum creatinine levels, lower estimated glomerular filtration rate, higher chronicity index, and lower frequency of anti-ribosomal P antibodies, and they were less likely to be in complete remission in the first year. In stepwise multivariable analyses, hypertension, lower glomerular filtration rate, and failure to achieve complete remission in the first year of treatment were significant predictors of the development of chronic kidney disease in lupus nephritis patients. Conclusions These findings suggest that patients with hypertension and decreased kidney function at the onset of lupus nephritis and showing a poor response to immunosuppressive drugs in the first year should be monitored carefully and managed aggressively to avoid deterioration of kidney function.
Collapse
Affiliation(s)
- D J Park
- Division of Rheumatology, Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea
| | - J H Kang
- Division of Rheumatology, Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea
| | - J W Lee
- Division of Rheumatology, Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea
| | - K E Lee
- Division of Rheumatology, Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea
| | - T J Kim
- Division of Rheumatology, Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea
| | - Y W Park
- Division of Rheumatology, Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea
| | - J S Lee
- Department of Pathology, Chonnam National University Hospital & Medical School, Gwangju, Republic of Korea
| | - Y D Choi
- Department of Pathology, Chonnam National University Hospital & Medical School, Gwangju, Republic of Korea
| | - S S Lee
- Division of Rheumatology, Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea
| |
Collapse
|
13
|
Song S, Lee SJ, Park DJ, Oh S, Lim KT. The anti-allergic activity of Lactobacillus plantarum L67 and its application to yogurt. J Dairy Sci 2016; 99:9372-9382. [DOI: 10.3168/jds.2016-11809] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/02/2016] [Indexed: 01/04/2023]
|
14
|
Park DJ, Senok SS, Goo YS. Degeneration stage-specific response pattern of retinal ganglion cell spikes in rd10 mouse retina. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:3351-4. [PMID: 26737010 DOI: 10.1109/embc.2015.7319110] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
It is known that with retinal degeneration there is rewiring of retinal networks. Consequently, electrical stimulation of the degenerating retina produces responses that differ according to the stage of retinal degeneration. We sought to delineate a degeneration stage-specific parameter for the response pattern of retinal ganglion cell (RGC) spikes as a strategy for stage-specific electrical stimulation for perceptual efficiency of prosthetic vision devices. Electrically-evoked RGC spikes were recorded at different degeneration stages in the rd10 mouse model for human retinitis pigmentosa (RP). Retinal explants mounted on an 8×8 multi-electrode array were stimulated by applying 1 Hz cathodic-phase first biphasic current pulses. RGC firing rate during the first 100 ms post-stimulus was compared to that during the 100-1000 ms period and a response ratio of 100 ms (RR100 ms) was calculated through the different postnatal weeks. Our results show that during post-stimulus 100-1000 ms, the degree of correlation between pulse amplitude and evoked RGC spikes drastically decreases at PNW 4.5. This pattern was closely matched by the RR100 ms curve at this stage. We conclude that the RR100 ms might be a good indicator of the therapeutic potential of a retinal electrical prosthesis.
Collapse
|
15
|
Lee JW, Park DJ, Kang JH, Choi SE, Yim YR, Kim JE, Lee KE, Wen L, Kim TJ, Park YW, Sung YK, Lee SS. The rate of and risk factors for frequent hospitalization in systemic lupus erythematosus: results from the Korean lupus network registry. Lupus 2016; 25:1412-1419. [PMID: 27000153 DOI: 10.1177/0961203316640916] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objectives The survival rate of patients with systemic lupus erythematosus has improved in the last few decades, but the rate of hospitalization and health care costs for these patients remain higher than in the general population. Thus, we evaluated the rate of hospitalization and associated risk factors in an inception cohort of Korean patients with lupus. Methods Of the 507 patients with systemic lupus erythematosus enrolled in the KORean lupus NETwork, we investigated an inception cohort consisting of 196 patients with systemic lupus erythematosus presenting within 6 months of diagnosis based on the American College of Rheumatology classification criteria. We evaluated the causes of hospitalization, demographic characteristics, and laboratory and clinical data at the time of systemic lupus erythematosus diagnosis of hospitalized patients and during a follow-up period. We calculated the hospitalization rate as the number of total hospitalizations divided by the disease duration, and defined "frequent hospitalization" as hospitalization more than once per year. Results Of the 196 patients, 117 (59.6%) were admitted to hospital a total of 257 times during the 8-year follow-up period. Moreover, 22 (11.2%) patients were hospitalized frequently. The most common reasons for hospitalization included disease flares, infection, and pregnancy-related morbidity. In the univariate regression analysis, malar rash, arthritis, pericarditis, renal involvement, fever, systemic lupus erythematosus disease activity index > 12, hemoglobin level < 10 mg/dl, albumin level < 3.5 mg/dl, and anti-Sjögren's syndrome A positivity were associated with frequent hospitalization. Finally, multivariate analysis showed that arthritis, pericarditis, and anti-Sjögren's syndrome A antibody positivity at the time of diagnosis were risk factors for frequent hospitalization. Conclusions Our results showed that frequent hospitalization occurred in 11.2% of hospitalized patients and arthritis, pericarditis, and anti-Sjögren's syndrome A antibody positivity at the time of diagnosis were risk factors for frequent hospitalization.
Collapse
Affiliation(s)
- J W Lee
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - D J Park
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - J H Kang
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - S E Choi
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Y R Yim
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - J E Kim
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - K E Lee
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - L Wen
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - T J Kim
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Y W Park
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Y K Sung
- 2 Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - S S Lee
- 1 Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| |
Collapse
|
16
|
Park DJ, Chun YG, Lee SH, Lee SJ, Kim BK. Development of Teeth Probe for Analysis of Correlation between Mechanical and Sensory Properties of Apples. J Texture Stud 2016. [DOI: 10.1111/jtxs.12195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong-June Park
- Korea Food Research Institute; Sungnam 463-746 Republic of Korea
| | - Yong-Gi Chun
- Korea Food Research Institute; Sungnam 463-746 Republic of Korea
| | - Sang-Hoon Lee
- Korea Food Research Institute; Sungnam 463-746 Republic of Korea
| | - Seung-Ju Lee
- Korea Food Research Institute; Sungnam 463-746 Republic of Korea
| | - Bum-Keun Kim
- Korea Food Research Institute; Sungnam 463-746 Republic of Korea
| |
Collapse
|
17
|
Kim BK, Cho AR, Park DJ. Enhancing oral bioavailability using preparations of apigenin-loaded W/O/W emulsions: In vitro and in vivo evaluations. Food Chem 2016; 206:85-91. [PMID: 27041302 DOI: 10.1016/j.foodchem.2016.03.052] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/18/2016] [Accepted: 03/16/2016] [Indexed: 11/27/2022]
Abstract
We analyzed the physical properties and digestibility of apigenin-loaded emulsions as they passed through a simulated digestion model. As the emulsion passed through the simulated stages of digestion, the particle size and zeta potential of all the samples changed, except for the soybean oil-Tween 80 emulsion, in which zeta potential remained constant, through all stages, indicating that soybean oil-Tween 80 emulsions may have an effect on stability during all stages of digestion. Fluorescence microscopy was used to observe the morphology of the emulsions at each step. The in vivo pharmacokinetics revealed that apigenin-loaded soybean oil-Tween 80 emulsions had a higher oral bioavailability than did the orally administrated apigenin suspensions. These results suggest that W/O/W multiple emulsions formulated with soybean oil and tween 80 have great potential as targeted delivery systems for apigenin, and may enhance in vitro and in vivo bioavailability when they pass through the digestive tract.
Collapse
Affiliation(s)
- Bum-Keun Kim
- Korea Food Research Institute, 1201-62 Anyangpangyo-Ro, Baekhyun-Dong, Bundang-Ku, Songnam-Si, Kyunggi-Do 463-746, Republic of Korea
| | - Ah-Ra Cho
- Korea Food Research Institute, 1201-62 Anyangpangyo-Ro, Baekhyun-Dong, Bundang-Ku, Songnam-Si, Kyunggi-Do 463-746, Republic of Korea
| | - Dong-June Park
- Korea Food Research Institute, 1201-62 Anyangpangyo-Ro, Baekhyun-Dong, Bundang-Ku, Songnam-Si, Kyunggi-Do 463-746, Republic of Korea.
| |
Collapse
|
18
|
Park DJ, Kim SH, Nah SS, Lee JH, Kim SK, Lee YA, Hong SJ, Kim HS, Lee HS, Kim HA, Joung CI, Kim SH, Lee SS. Association between catechol-O-methyl transferase gene polymorphisms and fibromyalgia in a Korean population: A case-control study. Eur J Pain 2016; 20:1131-9. [PMID: 26849490 DOI: 10.1002/ejp.837] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND Although polymorphisms of the catechol-O-methyl transferase (COMT) gene have been implicated in altered pain sensitivity, results concerning the association between COMT gene polymorphisms and fibromyalgia (FM) are equivocal. We assessed the associations between COMT single-nucleotide polymorphisms (SNP) and FM risk and symptom severity. METHODS In total, 409 FM patients and 423 controls were enrolled. Alleles and genotypes at five positions [rs6269 (A>G), rs4633 (C>T), rs4818 (C>G), rs4680 (C>G) and rs165599 (A>G)] in the COMT gene were genotyped from peripheral blood DNA. RESULTS Alleles and genotypes of the rs4818 COMT gene polymorphism were significantly associated with increased susceptibility to FM. The rs4818 GG genotype was more strongly associated with FM compared to the CC genotype (OR = 1.680, 95% CI: 1.057, 2.672, p = 0.027). Although allele and genotype frequencies did not differ among groups, the rs4633 CT genotype was not associated with the presence of FM following adjustment for age and sex (OR = 0.745; 95% CI: 0.558, 0.995; p = 0.046). However, no association was observed between clinical measures and individual COMT SNPs. In haplotype analysis, there was a significant association between ACG haplotype and FM susceptibility sex (OR = 2.960, 95% CI: 1.447, 6.056, p = 0.003) and the number of tender points (p = 0.046). CONCLUSIONS This large-scale study suggests that polymorphisms of the COMT gene may be associated with FM risk and pain sensitivity in Korean FM patients. However, our results differed to those of previous studies, suggesting ethnic variation in COMT gene polymorphisms in FM. WHAT DOES THIS STUDY ADD By contrast to Caucasian and Latin-American populations, the COMT gene polymorphisms are associated with FM risk and pain sensitivity in Korean FM patients, suggesting ethnic variation in COMT gene polymorphisms.
Collapse
Affiliation(s)
- D J Park
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - S H Kim
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - S S Nah
- Department of Internal Medicine, Soonchunhyang University, College of Medicine, Cheonan, Korea
| | - J H Lee
- Department of Internal Medicine, Maryknoll Medical Center, Busan, Korea
| | - S K Kim
- Department of Internal Medicine, Catholic University of Daegu, School of Medicine, Daegu, Korea
| | - Y A Lee
- Department of Internal Medicine, School of Medicine, Kyung Hee University, Seoul, Korea
| | - S J Hong
- Department of Internal Medicine, School of Medicine, Kyung Hee University, Seoul, Korea
| | - H S Kim
- Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - H S Lee
- Hanyang University College of Medicine and the Hospital for Rheumatic Diseases, Seoul, Korea
| | - H A Kim
- Department of Allergy and Rheumatology, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea
| | - C I Joung
- Department of Internal Medicine, Konyang University Medical School, Daejeon, Korea
| | - S H Kim
- Departments of Internal Medicine, School of Medicine, Keimyung University, Daegu, Korea
| | - S S Lee
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea
| |
Collapse
|
19
|
Hwangbo Y, Kim JH, Kim SW, Park YJ, Park DJ, Kim SY, Shin CS, Cho NH. High-normal free thyroxine levels are associated with low trabecular bone scores in euthyroid postmenopausal women. Osteoporos Int 2016; 27:457-62. [PMID: 26252978 DOI: 10.1007/s00198-015-3270-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 07/26/2015] [Indexed: 11/24/2022]
Abstract
UNLABELLED Trabecular bone scores (TBS) have recently been developed as a diagnostic tool to assess bone texture. We studied thyroid status and TBS in a population-based cohort and demonstrated that high-normal thyroxine levels are associated with low TBS in healthy euthyroid postmenopausal women. INTRODUCTION Increased thyroid hormone levels affect bone mineral density (BMD) and, if untreated, increase the risk of fracture. However, the relationship between thyroid function and bone microarchitecture has not yet been established. Trabecular bone scores (TBS) are gray-level textural measurements of dual energy X-ray absorptiometry (DXA) images. The TBS has been proposed as an indirect index of bone microarchitecture. The goal of this study was to characterize the relationship between thyroid function and TBS in euthyroid men and postmenopausal euthyroid women. METHODS A total of 1376 euthyroid subjects (648 postmenopausal women and 728 men) were recruited from a community-based cohort in Korea. Free thyroxine (fT4) levels, thyroid stimulating hormone (TSH) levels, BMD, and TBS were measured and compared. RESULTS There was no significant relationship between either fT4 or TSH levels and BMD in men and women. Multiple linear regression analysis showed that high-normal fT4 levels were negatively correlated with TBS (β = -0.111; P = 0.002, after adjusting for both age and body mass index [BMI]) in postmenopausal women. In men, however, there was no significant correlation between fT4 levels and TBS. TSH levels were not significantly associated with TBS in either men or women. CONCLUSION Higher fT4 levels within the normal reference range are associated with deterioration of trabecular microarchitecture in healthy euthyroid postmenopausal women.
Collapse
Affiliation(s)
- Y Hwangbo
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - J H Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - S W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - Y J Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - D J Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - S Y Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - C S Shin
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea.
| | - N H Cho
- Department of Preventive Medicine, School of Medicine, Ajou University, 5 Wonchon-Dong, Youngtong-Gu, Suwon, 443-721, South Korea.
| |
Collapse
|
20
|
Chi M, Yi B, Oh S, Park DJ, Sung JH, Park S. A microfluidic cell culture device (μFCCD) to culture epithelial cells with physiological and morphological properties that mimic those of the human intestine. Biomed Microdevices 2015; 17:9966. [PMID: 26002774 DOI: 10.1007/s10544-015-9966-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Physiological and morphological properties of the human intestine cannot be accurately mimicked in conventional culture devices such as well plates and petri dishes where intestinal epithelial cells form a monolayer with loose contacts among cells. Here, we report a novel microfluidic cell culture device (μFCCD) that can be used to culture cells as a human intestinal model. This device enables intestinal epithelial cells (Caco-2) to grow three-dimensionally on a porous membrane coated with fibronectin between two polydimethylsiloxane (PDMS) layers. Within 3 days, Caco-2 cells cultured in the μFCCD formed villi- and crypt-like structures with small intercellular spaces, while individual cells were tightly connected to one another through the expression of the tight junction protein occludin, and were covered with a secreted mucin, MUC-2. Caco-2 cells cultured in the μFCCD for 3 days were less susceptible to bacterial attack than those cultured in transwell plates for 21 days. μFCCD-cultured Caco-2 cells also displayed physiologically relevant absorption and paracellular transport properties. These results suggest that our intestinal model more accurately mimics the morphological and physiological properties of the intestine in vivo than the conventional transwell culture model.
Collapse
Affiliation(s)
- Meiying Chi
- Department of Chemistry and Nano Sciences (BK21 plus), EwhaWomans University, Seoul, 120-750, Korea
| | | | | | | | | | | |
Collapse
|
21
|
Park MR, Oh S, Son SJ, Park DJ, Oh S, Kim SH, Jeong DY, Oh NS, Lee Y, Song M, Kim Y. Bacillus licheniformis Isolated from Traditional Korean Food Resources Enhances the Longevity of Caenorhabditis elegans through Serotonin Signaling. J Agric Food Chem 2015; 63:10227-10233. [PMID: 26541069 DOI: 10.1021/acs.jafc.5b03730] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study, we investigated potentially probiotic Bacillus licheniformis strains isolated from traditional Korean food sources for ability to enhance longevity using the nematode Caenorhabditis elegans as a simple in vivo animal model. We first investigated whether B. licheniformis strains were capable of modulating the lifespan of C. elegans. Among the tested strains, preconditioning with four B. licheniformis strains significantly enhanced the longevity of C. elegans. Unexpectedly, plate counting and transmission electron microscopy (TEM) results indicated that B. licheniformis strains were not more highly attached to the C. elegans intestine compared with Escherichia coli OP50 or Lactobacillus rhamnosus GG controls. In addition, qRT-PCR and an aging assay with mutant worms showed that the conditioning of B. licheniformis strain 141 directly influenced genes associated with serotonin signaling in nematodes, including tph-1 (tryptophan hydroxylase), bas-1 (serotonin- and dopamine-synthetic aromatic amino acid decarboxylase), mod-1 (serotonin-gated chloride channel), ser-1, and ser-7 (serotonin receptors) during C. elegans aging. Our findings suggest that B. licheniformis strain 141, which is isolated from traditional Korean foods, is a probiotic generally recognized as safe (GRAS) strain that enhances the lifespan of C. elegans via host serotonin signaling.
Collapse
Affiliation(s)
- Mi Ri Park
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University , Jeonju 561-756, Korea
| | - Sangnam Oh
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University , Jeonju 561-756, Korea
| | - Seok Jun Son
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University , Jeonju 561-756, Korea
| | - Dong-June Park
- Korea Food Research Institute , Seongnam-si, Gyeonggi-do 463-746, Korea
| | - Sejong Oh
- Division of Animal Science, Chonnam National University , Gwangju 500-757, Korea
| | - Sae Hun Kim
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University , 136-701 Seoul, Korea
| | - Do-Youn Jeong
- Microbial Institute for Fermentation Industry , Sunchang, Jeonbuk 595-804, Republic of Korea
| | - Nam Su Oh
- R&D Center, Seoul Dairy Cooperative , Ansan, Gyeonggi-do 425-839, South Korea
| | - Youngbok Lee
- Department of Applied Chemistry, Hanyang University , ERICA Campus, Ansan, Gyeonggi-do 426-791, Korea
| | - Minho Song
- Department of Animal Science and Biotechnology, Chungnam National University , Daejeon 305-764, Korea
| | - Younghoon Kim
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University , Jeonju 561-756, Korea
| |
Collapse
|
22
|
Neafsey DE, Juraska M, Bedford T, Benkeser D, Valim C, Griggs A, Lievens M, Abdulla S, Adjei S, Agbenyega T, Agnandji ST, Aide P, Anderson S, Ansong D, Aponte JJ, Asante KP, Bejon P, Birkett AJ, Bruls M, Connolly KM, D'Alessandro U, Dobaño C, Gesase S, Greenwood B, Grimsby J, Tinto H, Hamel MJ, Hoffman I, Kamthunzi P, Kariuki S, Kremsner PG, Leach A, Lell B, Lennon NJ, Lusingu J, Marsh K, Martinson F, Molel JT, Moss EL, Njuguna P, Ockenhouse CF, Ogutu BR, Otieno W, Otieno L, Otieno K, Owusu-Agyei S, Park DJ, Pellé K, Robbins D, Russ C, Ryan EM, Sacarlal J, Sogoloff B, Sorgho H, Tanner M, Theander T, Valea I, Volkman SK, Yu Q, Lapierre D, Birren BW, Gilbert PB, Wirth DF. Genetic Diversity and Protective Efficacy of the RTS,S/AS01 Malaria Vaccine. N Engl J Med 2015; 373:2025-2037. [PMID: 26488565 PMCID: PMC4762279 DOI: 10.1056/nejmoa1505819] [Citation(s) in RCA: 264] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The RTS,S/AS01 vaccine targets the circumsporozoite protein of Plasmodium falciparum and has partial protective efficacy against clinical and severe malaria disease in infants and children. We investigated whether the vaccine efficacy was specific to certain parasite genotypes at the circumsporozoite protein locus. METHODS We used polymerase chain reaction-based next-generation sequencing of DNA extracted from samples from 4985 participants to survey circumsporozoite protein polymorphisms. We evaluated the effect that polymorphic positions and haplotypic regions within the circumsporozoite protein had on vaccine efficacy against first episodes of clinical malaria within 1 year after vaccination. RESULTS In the per-protocol group of 4577 RTS,S/AS01-vaccinated participants and 2335 control-vaccinated participants who were 5 to 17 months of age, the 1-year cumulative vaccine efficacy was 50.3% (95% confidence interval [CI], 34.6 to 62.3) against clinical malaria in which parasites matched the vaccine in the entire circumsporozoite protein C-terminal (139 infections), as compared with 33.4% (95% CI, 29.3 to 37.2) against mismatched malaria (1951 infections) (P=0.04 for differential vaccine efficacy). The vaccine efficacy based on the hazard ratio was 62.7% (95% CI, 51.6 to 71.3) against matched infections versus 54.2% (95% CI, 49.9 to 58.1) against mismatched infections (P=0.06). In the group of infants 6 to 12 weeks of age, there was no evidence of differential allele-specific vaccine efficacy. CONCLUSIONS These results suggest that among children 5 to 17 months of age, the RTS,S vaccine has greater activity against malaria parasites with the matched circumsporozoite protein allele than against mismatched malaria. The overall vaccine efficacy in this age category will depend on the proportion of matched alleles in the local parasite population; in this trial, less than 10% of parasites had matched alleles. (Funded by the National Institutes of Health and others.).
Collapse
|
23
|
Yun B, Oh S, Song M, Hong YS, Park S, Park DJ, Griffiths MW, Oh S. Inhibitory Effect of Epigallocatechin Gallate on the Virulence of Clostridium difficile PCR Ribotype 027. J Food Sci 2015; 80:M2925-31. [PMID: 26556797 DOI: 10.1111/1750-3841.13145] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 10/12/2015] [Indexed: 12/22/2022]
Abstract
Clostridium difficile infection (CDI) is the most prevalent cause of health-care-associated infections. CDI-related health-care costs and deaths are both increasing annually on a global scale. C. difficile have been reported in food products in Canada, Europe, and the United States; however, the systematic transmission of C. difficile between humans and animals is yet to be understood. Because of the limitations of current therapeutic options, there is a need for the development of new patient treatments. Epigallocatechin gallate (EGCG) is a major catechin compound found in green tea extracts and exhibits antioxidant and antimicrobial activities. This study was conducted to investigate the inhibitory effects of EGCG on the expression of virulence genes in C. difficile and in C. difficile-associated diseases by inhibition of quorum sensing. The protein expression of autoinducer-2 (AI-2) was evaluated by AI-2 activity. EGCG at various concentrations had an inhibitory effect on AI-2 production, especially at 10 μg/mL. EGCG also significantly repressed the transcription of virulence genes, including luxS and tcdA, and prolonged the survival of Caenorhabditis elegans infected with C. difficile. Furthermore, treatment with EGCG effectively protected C. difficile-infected mice from C. difficile-induced death. Histological analysis of the colon and cecum of these mice revealed that EGCG protected tissues of the lower intestinal tract from damage. EGCG exerted growth-inhibitory and bactericidal activities on C. difficile in C. difficile-infected mice. Our results suggest that EGCG has significant antipathogenic effects on C. difficile and can be used to prevent or treat C. difficile-associated diseases or C. difficile infections.
Collapse
Affiliation(s)
- Bohyun Yun
- Div. of Animal Science, Chonnam National Univ, Gwangju, 500-757, South Korea
| | - Seunghan Oh
- Div. of Animal Science, Chonnam National Univ, Gwangju, 500-757, South Korea
| | - Minyu Song
- Div. of Animal Science, Chonnam National Univ, Gwangju, 500-757, South Korea
| | - Young-Shick Hong
- Div. of Food and Nutrition, Chonnam National Univ, Gwangju, 500-757, South Korea
| | - Sungsu Park
- School of Mechanical Engineering, Sungkyunkwan Univ, Suwon, 440-746, South Korea
| | | | - Mansel W Griffiths
- Dept. of Food Science, Univ. of Guelph, Canadian Research Institute for Food Safety, 000 Guelph, ON, N1G 2W1, Canada
| | - Sejong Oh
- Div. of Animal Science, Chonnam National Univ, Gwangju, 500-757, South Korea
| |
Collapse
|
24
|
Sukegawa M, Chihara N, Suzuki H, Watanabe M, Nomura S, Uchida E, Napoliello D, Mykytiuk S, Vlasov V, Pidmurniak O, Prystupa M, Latynskyi E, Pidoprygora YU, Brytanchuk R, Demiryas S, Kucuk Y, Umman V, Ulualp K, Ertem M, Tasci I, Ahn S, Park DJ, Kim HH, Morgell A, Nilsson H, Nordin P, Angerås U, Sandblom G. Topic: Femoral Hernia - Approach, results. Hernia 2015; 19 Suppl 1:S220-2. [PMID: 26518808 DOI: 10.1007/bf03355357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- M Sukegawa
- Institute of Gastroenterology, Nippon Medical School - Musashikosugi Hospital, Kawasaki, Japan
| | - N Chihara
- Institute of Gastroenterology, Nippon Medical School - Musashikosugi Hospital, Kawasaki, Japan
| | - H Suzuki
- Institute of Gastroenterology, Nippon Medical School - Musashikosugi Hospital, Kawasaki, Japan
| | - M Watanabe
- Institute of Gastroenterology, Nippon Medical School - Musashikosugi Hospital, Kawasaki, Japan
| | - S Nomura
- Institute of Gastroenterology, Nippon Medical School - Musashikosugi Hospital, Kawasaki, Japan
| | - E Uchida
- Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - D Napoliello
- Sarasota Memoral Healthcare System, Sarasota, USA
| | - S Mykytiuk
- Khmelnytskyi Basic Medical College, Khmelnytskyi, Ukraine
| | - V Vlasov
- Vinnitsa National Medical University, Khmelnytskyi, Ukraine
| | - O Pidmurniak
- Surgical Department of Khmelnytskyi Regional Hospital, Khmelnytskyi, Ukraine
| | - M Prystupa
- Surgical Department of Khmelnytskyi Regional Hospital, Khmelnytskyi, Ukraine
| | - E Latynskyi
- Surgical Department of Khmelnytskyi Regional Hospital, Khmelnytskyi, Ukraine
| | - Y U Pidoprygora
- Surgical Department of Khmelnytskyi Regional Hospital, Khmelnytskyi, Ukraine
| | - R Brytanchuk
- Surgical Department of Khmelnytskyi Regional Hospital, Khmelnytskyi, Ukraine
| | - S Demiryas
- Cerrahpasa Medical Faculty, Department of General Surgery, Istanbul University, Istanbul, Turkey
| | - Y Kucuk
- Cerrahpasa Medical Faculty, Department of General Surgery, Istanbul University, Istanbul, Turkey
| | - V Umman
- Cerrahpasa Medical Faculty, Department of General Surgery, Istanbul University, Istanbul, Turkey
| | - K Ulualp
- Cerrahpasa Medical Faculty, Department of General Surgery, Istanbul University, Istanbul, Turkey
| | - M Ertem
- Cerrahpasa Medical Faculty, Department of General Surgery, Istanbul University, Istanbul, Turkey
| | - I Tasci
- Cerrahpasa Medical Faculty, Department of General Surgery, Istanbul University, Istanbul, Turkey
| | - S Ahn
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - D J Park
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - H H Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - A Morgell
- Karolinska Universitetssjukhuset, Stockholm, Sweden
| | - H Nilsson
- Sahlgrenska Universitetssjukhuset, Göteborg, Sweden
| | - P Nordin
- Östersunds Sjukhus, Östersund, Sweden
| | - U Angerås
- Sahlgrenska Universitetssjukhuset, Göteborg, Sweden
| | - G Sandblom
- Karolinska Universitetssjukhuset, Stockholm, Sweden
| |
Collapse
|
25
|
|
26
|
Eom SH, Lee SH, Chun YG, Kim BK, Park DJ. Texture Softening of Beef and Chicken by Enzyme Injection Process. Korean J Food Sci Anim Resour 2015; 35:486-93. [PMID: 26761870 PMCID: PMC4662131 DOI: 10.5851/kosfa.2015.35.4.486] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 04/06/2015] [Revised: 06/10/2015] [Accepted: 06/11/2015] [Indexed: 11/06/2022] Open
Abstract
This research focuses on a new softening technology for use with chicken breast and eye of round beef in order to assist elderly individuals who have difficulty with eating due to changes in their ability to chew (masticatory function) or swallow. We investigated the hardness of chicken breast and eye of round beef through use of a texture analyzer after injection of a commercial enzyme. Among 7 commercial enzymes, bromelain and collupulin exhibited a marked softening effect on the tested chicken breast and eye of round beef given a 1.00% enzyme concentration. The hardness of bromelain-treated chicken breast reached 1.4×10(4) N/m(2), of collupulin-treated chicken breast reached 3.0×10(4) N/m(2), and of bromelain-treated eye of round beef reached 3.2×10(4) N/m(2), respectively, while their original shapes did not change. To find the level of tissue degradation with specific enzyme concentrations, enzyme injections at 0.1%, 0.25%, 0.50%, and 1.00% concentration of bromelain and papain were also evaluated. The results of this research could be useful for softening chicken breast and eye of round beef and will contribute to the development of foods that can be more easily eaten as part of a balanced diet for elderly adults.
Collapse
Affiliation(s)
- Sung-Hwan Eom
- Korea Food Research Institute, Sungnam, 463-746, Korea
| | - Sang-Hoon Lee
- Korea Food Research Institute, Sungnam, 463-746, Korea; University of Science and Technology, Daejeon 305-350, Korea
| | - Yong-Gi Chun
- Korea Food Research Institute, Sungnam, 463-746, Korea
| | - Bum-Keun Kim
- Korea Food Research Institute, Sungnam, 463-746, Korea
| | | |
Collapse
|
27
|
Song M, Yun B, Moon JH, Park DJ, Lim K, Oh S. Characterization of Selected Lactobacillus Strains for Use as Probiotics. Korean J Food Sci Anim Resour 2015; 35:551-6. [PMID: 26761878 PMCID: PMC4662139 DOI: 10.5851/kosfa.2015.35.4.551] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 07/14/2015] [Revised: 07/25/2015] [Accepted: 07/25/2015] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to evaluate the functional properties of lactic acid bacteria from various sources and to identify strains for use as probiotics. Ten Lactobacillus strains were selected and their properties such as bile tolerance, acid resistance, cholesterol assimilation activity, and adherence to HT-29 cells were assessed to determine their potential as probiotics. Lactobacillus sp. JNU 8829, L. casei MB3, L. sakei MA9, L. sakei CH8, and L. acidophilus M23 were found to show full tolerance to the 0.3% bile acid. All strains without L. acidophilus M23 were the most acid-tolerant strains. After incubating the strains at pH 2.5 for 2 h, their viability decreased by 3 Log cells. Some strains survived at pH 2.5 in the presence of pepsin and 0.3% bile acid. Lactobacillus sp. JNU 8829, L. acidophilus KU41, L. acidophilus M23, L. fermentum NS2, L. plantarum M13, and L. plantarum NS3 were found to reduce cholesterol levels by >50% in vitro. In the adhesion assay, Lactobacillus sp. JNU 8829, L. casei MB3, L. sakei MA9, and L. sakei CH8 showed higher adhesion activities after 2 h of co-incubation with the intestinal cells. The results of this comprehensive analysis shows that this new probiotic strain named, Lactobacillus sp. JNU 8829 could be a promising candidate for dairy products.
Collapse
Affiliation(s)
- Minyu Song
- Division of Animal Science, Chonnam National University, Gwangju 500-757, Korea; Bioresources Inc, Sunchoen 540-843, Korea
| | - Bohyun Yun
- Division of Animal Science, Chonnam National University, Gwangju 500-757, Korea
| | - Jae-Hak Moon
- Department of Food Science, Chonnam National University, Gwangju 500-757, Korea
| | | | | | - Sejong Oh
- Division of Animal Science, Chonnam National University, Gwangju 500-757, Korea
| |
Collapse
|
28
|
Choi JH, Park DJ, Kang JH, Yim YR, Lee KE, Lee JW, Wen L, Kim TJ, Park YW, Lee JK, Lee SS. Comparison of clinical and serological differences among juvenile-, adult-, and late-onset systemic lupus erythematosus in Korean patients. Lupus 2015; 24:1342-9. [PMID: 26085595 DOI: 10.1177/0961203315591024] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 05/12/2015] [Indexed: 11/16/2022]
Abstract
OBJECTIVES We investigated whether systemic lupus erythematosus (SLE) patients could be distinguished based on the time of disease onset and, if so, whether the groups differed in their clinical and laboratory features in ethnically homogeneous Korean patients. METHODS We enrolled 201 SLE patients with available clinical data at the time of onset of SLE from the lupus cohort at Chonnam National University Hospital. Sociodemographic, clinical, and laboratory data, including autoantibodies, and concomitant diseases were found at the time of diagnosis of SLE by reviewing patient charts. We divided SLE patients according to age at SLE diagnosis into three groups: juvenile-onset SLE (JSLE, diagnosed at ≤ 18 years), adult-onset SLE (ASLE, diagnosed at 19-50 years), and late-onset SLE (LSLE, diagnosed at >50 years), and compared baseline demographic, clinical, and relevant laboratory findings. RESULTS Of the 201 patients, 27 (14.4%), 149 (74.1%), and 25 (12.4%) were JSLE, ASLE, and LSLE patients, respectively. Fever, oral ulcers, nephritis, anemia, and thrombocytopenia were more common in JSLE patients than ASLE or LSLE patients (p < 0.05, < 0.05, 0.001, < 0.05, and < 0.05, respectively). However, Sjögren's syndrome was more frequent in LSLE patients than JSLE or ASLE patients (p < 0.05). Disease activity was significantly higher in JSLE patients than in ASLE or LSLE patients (p < 0.001). Anti-dsDNA and anti-nucleosome antibodies were found more frequently in JSLE patients and less frequently in LSLE patients (p < 0.05 and 0.005, respectively) and decreased complement levels were more common in JSLE patients and less common in LSLE patients (p < 0.001, 0.001, and < 0.05, respectively). CONCLUSIONS Our results indicate that SLE patients present with different clinical and serological manifestations according to age at disease onset. JSLE patients have more severe disease activity and more frequent renal involvement and LSLE patients have milder disease activity, more commonly accompanied by Sjögren's syndrome, at disease onset.
Collapse
Affiliation(s)
- J H Choi
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - D J Park
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - J H Kang
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - Y R Yim
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - K E Lee
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - J W Lee
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - L Wen
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - T J Kim
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - Y W Park
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - J K Lee
- Department of Neurosurgery, Chonnam National University Medical School & Hospital, Gwangju, Korea
| | - S S Lee
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School & Hospital, Gwangju, Korea
| |
Collapse
|
29
|
Cheong SH, Hwang JW, Lee SH, Kim YS, Kim EK, Lee SH, Park DJ, Ahn CB, Jeon BT, Moon SH, Park PJ, Sung SH. Protective Effect of Mussel (Mytilus Coruscus) Extract Containing Taurine Against AAPH-Induced Oxidative Stress in Zebrafish Model. Adv Exp Med Biol 2015; 803:807-18. [PMID: 25833547 DOI: 10.1007/978-3-319-15126-7_65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Sun Hee Cheong
- Department of Biotechnology, Konkuk University, Chungju, 380-701, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Cheong SH, Hwang JW, Lee SH, Kim YS, Sim EJ, You BI, Lee SH, Park DJ, Ahn CB, Kim EK, Jeon BT, Moon SH, Park PJ. In Vitro and In Vivo Antioxidant and Anti-inflammatory Activities of Abalone (Haliotis discus) Water Extract. Adv Exp Med Biol 2015; 803:833-49. [PMID: 25833549 DOI: 10.1007/978-3-319-15126-7_67] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sun Hee Cheong
- Department of Biotechnology, Konkuk University, Chungju, 380-701, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Affiliation(s)
- D J Park
- Pfizer Pharmaceuticals Korea Ltd., Seoul, South Korea
| | - Y H Kim
- Seoul National University, Seoul, South Korea
| | - E J Kim
- Graduate School of Public Health, Seoul National University, Seoul, South Korea
| |
Collapse
|
32
|
Lee JY, Park DJ. Cost-Effectiveness of Infant Vaccination with 13-Valent Versus 10-Valent Pneumococcal Conjuvate Vaccine in Korea. Value Health 2014; 17:A805-A806. [PMID: 27203035 DOI: 10.1016/j.jval.2014.08.519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- J Y Lee
- Pfizer Pharmaceuticals Korea Ltd., Seoul, South Korea
| | - D J Park
- Pfizer Pharmaceuticals Korea Ltd., Seoul, South Korea
| |
Collapse
|
33
|
Lee Y, Park DJ, Ko SK. Cost-Effectiveness Analysis of Latanoprost Compared with Dorzolamide/Timolol Fixed Combination for the Treatment of Open-Angle Glaucoma and Ocular Hypertension Patients in Korea. Value Health 2014; 17:A782. [PMID: 27202902 DOI: 10.1016/j.jval.2014.08.382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Y Lee
- Pfizer Pharmaceuticals Korea Ltd., Seoul, South Korea
| | - D J Park
- Pfizer Pharmaceuticals Korea Ltd., Seoul, South Korea
| | - S K Ko
- Pfizer Pharmaceuticals Korea Ltd., Seoul, South Korea
| |
Collapse
|
34
|
Nguyen-Dumont T, Mahmoodi M, Hammet F, Tran T, Tsimiklis H, Giles GG, Hopper JL, Southey MC, Park DJ. Hi-Plex targeted sequencing is effective using DNA derived from archival dried blood spots. Anal Biochem 2014; 470:48-51. [PMID: 25447460 DOI: 10.1016/j.ab.2014.10.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 10/15/2014] [Accepted: 10/17/2014] [Indexed: 11/28/2022]
Abstract
Many genetic epidemiology resources have collected dried blood spots (predominantly as Guthrie Cards) as an economical and efficient means of archiving sources of DNA, conferring great value to genetic screening methods that are compatible with this medium. We applied Hi-Plex to screen the breast cancer predisposition gene PALB2 in 93 Guthrie Card-derived DNA specimens previously characterized for PALB2 genetic variants via DNA derived from lymphoblastoid cell lines, whole blood, and buffy coat. Of the 93 archival Guthrie Card-derived DNAs, 92 (99%) were processed successfully and sequenced using approximately half of a MiSeq run. From these 92 DNAs, all 59 known variants were detected and no false-positive variant calls were yielded. Fully 98.13% of amplicons (5417/5520) were represented within 15-fold of the median coverage (2786 reads), and 99.98% of amplicons (5519/5520) were represented at a depth of 10 read-pairs or greater. With Hi-Plex, we show for the first time that a High-Plex amplicon-based massively parallel sequencing (MPS) system can be applied effectively to DNA prepared from dried blood spot archival specimens and, as such, can dramatically increase the scopes of both method and resource.
Collapse
Affiliation(s)
- T Nguyen-Dumont
- Genetic Epidemiology Laboratory, Department of Pathology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - M Mahmoodi
- Genetic Epidemiology Laboratory, Department of Pathology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - F Hammet
- Genetic Epidemiology Laboratory, Department of Pathology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - T Tran
- Genetic Epidemiology Laboratory, Department of Pathology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - H Tsimiklis
- Genetic Epidemiology Laboratory, Department of Pathology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | | | - G G Giles
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Victoria 3004, Australia
| | - J L Hopper
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, Parkville, Victoria 3010, Australia
| | | | - M C Southey
- Genetic Epidemiology Laboratory, Department of Pathology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - D J Park
- Genetic Epidemiology Laboratory, Department of Pathology, University of Melbourne, Melbourne, Victoria 3010, Australia.
| |
Collapse
|
35
|
Kang Y, Kim MJ, Jang HN, Bae EJ, Yun S, Cho HS, Chang SH, Park DJ. Rhabdomyolysis associated with initiation of febuxostat therapy for hyperuricaemia in a patient with chronic kidney disease. J Clin Pharm Ther 2014; 39:328-30. [PMID: 24612195 DOI: 10.1111/jcpt.12144] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 01/27/2014] [Indexed: 01/18/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Febuxostat is now recommended as the first-line pharmacological urate-lowering therapy for gout in the American College of Rheumatology guidelines. There is no case of rhabdomyolysis associated with febuxostat among reported side effects of the drug. Our objective is to report on a case of rhabdomyolysis associated with initiation of febuxostat in a patient with chronic kidney disease (CKD). CASE SUMMARY A 73-year-old male patient visited our emergency room due to progressive weakness in both lower extremities starting 3 days earlier. Ten days before presentation, his primary physician had changed his prescription from allopurinol to febuxostat (80 mg) because of poor control of uric acid levels. There was tenderness in both thighs. Initial creatinine kinase (CK) was 7652 U/L (0-170 U/L), and a bone scan using (99m) Tc-HDP revealed strong uptake in soft tissues in both thighs and buttocks. Electromyography (EMG) and nerve conduction velocity (NCV) showed abnormal spontaneous activities (ASA), suggesting myopathy, not nerve damage. On day 7 of admission, after conservative management and febuxostat withdrawal, he could walk on the ward. He is being followed in our clinic as an outpatient with no sequelae. WHAT IS NEW AND CONCLUSION This report is first case of rhabdomyolysis associated with initiation of febuxostat. Febuxostat should be withdrawn when rhabdomyolysis is confirmed.
Collapse
Affiliation(s)
- Y Kang
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, South Korea
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Ki CY, Kwon KH, Kim SW, Min KS, Lee TU, Park DJ. Effects of injection of acetic acid and propionic acid for total phosphorus removal at high temperature in enhanced biological phosphorus removal process. Water Sci Technol 2014; 69:2023-2028. [PMID: 24845316 DOI: 10.2166/wst.2014.090] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In summer, wastewater treatment plant total phosphorus (TP) removal efficiency is low in South Korea. The reason is because of high temperatures or significant fluctuation of inflow characteristics caused by frequent rainfall. Hence, this study tried to raise TP removal efficiency by injecting fixed external carbon sources in real sewage. Polyphosphate accumulating organisms (PAOs) and glycogen accumulating organisms (GAOs) compete to occupy microorganisms at high temperature. Propionate is known to restrain GAOs. Thus, acetate and propionate were chosen as the external carbon source in this study to find out the suitable volume and ratio of carbon source which ensured the dominance of PAOs. An external carbon source was supplied in the anaerobic reactor of the biological phosphorus removal process at high temperature (above 25 °C). TP removal efficiency was improved by injecting an external carbon source compared to that without an external carbon source. Also, it remained relatively stable when injecting an external carbon source, despite the variation in temperature. TP removal efficiency was the highest when injecting acetate and propionate in the proportion of 2:1 (total concentration as chemical oxygen demand (COD) is 12 mg/L in influent).
Collapse
Affiliation(s)
- C Y Ki
- Department of Environment Engineering, Kyungpook National University, Sangyeok 3-dong, Buk-gu, Daegu, South Korea 702-701 E-mail:
| | - K H Kwon
- Department of Environment Engineering, Kyungpook National University, Sangyeok 3-dong, Buk-gu, Daegu, South Korea 702-701 E-mail:
| | - S W Kim
- Department of Environment Engineering, Kyungpook National University, Sangyeok 3-dong, Buk-gu, Daegu, South Korea 702-701 E-mail:
| | - K S Min
- Department of Environment Engineering, Kyungpook National University, Sangyeok 3-dong, Buk-gu, Daegu, South Korea 702-701 E-mail:
| | - T U Lee
- Daegu Metropolitan City Environmental Installations Corporation, 499-4, Dusan-dong, Suseong-gu, Daegu, South Korea 706-801
| | - D J Park
- SSENG Co., LTD, 392-7, Deokpo 2-dong, Sasang-gu, Busan, South Korea 617-814
| |
Collapse
|
37
|
Abstract
We performed time-domain terahertz (THz) spectroscopy on reduced graphene oxide (rGO) network films coated on quartz substrates from dispersion solutions by spraying method. The rGO network films demonstrate high conductivity of about 900 S/cm in the THz frequency range after a high temperature reduction process. The frequency-dependent conductivities and the refractive indexes of the rGO films have been obtained and analyzed with respect to the Drude free-electron model, which is characterized by large scattering rate. Finally, we demonstrate that the THz conductivities can be manipulated by controlling the reduction process, which correlates well with the DC conductivity above the percolation limit.
Collapse
Affiliation(s)
- J T Hong
- Department of Physics and Division of Energy Systems Research, Ajou University, Suwon 443-749, South Korea
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Lee JH, Cho AR, Hong JY, Park DJ, Lim ST. Physical properties of wheat flour composites dry-coated with microparticulated soybean hulls and rice flour and their use for low-fat doughnut preparation. J Cereal Sci 2012. [DOI: 10.1016/j.jcs.2012.08.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
39
|
Kim N, Park C, Park DJ, Kim HH, Kim S, Kim YJ, Kim JH, Lee JS, Bang YJ, Khwarg SI, Choung H, Lee MJ, Lee KW. Lacrimal drainage obstruction in gastric cancer patients receiving S-1 chemotherapy. Ann Oncol 2012; 23:2065-2071. [PMID: 22589332 DOI: 10.1093/annonc/mds106] [Citation(s) in RCA: 22] [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] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND This study was conducted to determine the incidence and clinical characteristics of lacrimal drainage obstruction (LDO) in patients receiving S-1 chemotherapy. PATIENTS AND METHODS Consecutive 170 patients with gastric cancer who underwent curative surgery and received adjuvant S-1 chemotherapy were enrolled. S-1 was administered orally (40 mg/m2 b.i.d. on days 1-28 every 6 weeks) for 1 year. Ophthalmologic examinations were carried out on patients complaining of epiphora. RESULTS Thirty-one patients (18%) developed epiphora. Among 31 patients, 25 underwent ophthalmologic examinations and 22 (88%) were diagnosed with LDO. The median time to the onset of LDO was 2.9 months. The most common site of obstruction was the nasolacrimal duct [86% (19/22)]; punctal [23% (5/22)] and canalicular obstruction [14% (3/22)] were also noted. In multivariate analysis, total gastrectomy [versus partial gastrectomy: hazard ratio (HR), 2.9; P=0.014] and creatinine clearance<50 ml/min (versus ≥50 ml/min: HR, 2.9; P=0.038) were independent risk factors for the development of LDO. CONCLUSION Considering the high incidence of LDO in patients receiving S-1 chemotherapy, oncologists should be alert to epiphora and cooperate with ophthalmologists in the early stages to improve the quality of life of patients and avoid more complicated ophthalmologic procedures.
Collapse
Affiliation(s)
- N Kim
- Department of Ophthalmology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - C Park
- Department of Ophthalmology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul
| | | | | | - S Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam; Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul
| | - Y J Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - J H Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - J S Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - Y-J Bang
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul
| | - S I Khwarg
- Department of Ophthalmology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul
| | - H Choung
- Department of Ophthalmology, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul
| | - M J Lee
- Department of Ophthalmology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - K-W Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam.
| |
Collapse
|
40
|
|
41
|
Abstract
Wheat flour-microparticulated wheat bran (MWB) mixture and composites were prepared, and their potential as an oil repellent was evaluated in doughnuts. As MWB content increased, the oil-holding capacity decreased, and there were significant changes in water-holding capacity (p < 0.05). As MWB content increased, the fat content of doughnuts decreased. In addition, the wheat flour-MWB composite was more effective for preventing fat uptake than the wheat flour-MWB mixture. The hardness of the composite was higher than the mixture, although volume and weight decreased and surface colour became darker than that of the mixture. As the proportion of wheat bran in the doughnut formulation increased, the inner crust achieved a uniform cell size and cellular integrity was improved. Based on these data, wheat flour-MWB composites are appropriate for use in doughnut formulas with low fat uptake.
Collapse
Affiliation(s)
- Bum-Keun Kim
- Korea Food Research Institute, 516 Baekhyun-Dong, Bundang-Ku, Songnam-Si, Kyunggi-Do 463-746, Republic of Korea
| | | | | | | |
Collapse
|
42
|
Teo ZL, Park DJ, Odefrey F, Hammet F, Nguyen-Dumont T, Tsimiklis H, Pope BJ, Lonie A, Winship I, Giles GG, Hopper JL, Southey MC. Expanded genetic analysis of a PALB2 c.3113G>A mutation carrying multiple-case breast cancer family via exome sequencing. Hered Cancer Clin Pract 2012. [PMCID: PMC3327032 DOI: 10.1186/1897-4287-10-s2-a92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
43
|
Blanc R, Jammot A, Nguyen-Dumont T, Teo ZL, Odefrey FA, Hammet F, Goldgar DE, Park DJ, Southey MC. Early exploration of two candidate breast cancer susceptibility genes identified by whole-exome sequencing. Hered Cancer Clin Pract 2012. [PMCID: PMC3327170 DOI: 10.1186/1897-4287-10-s2-a91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
44
|
Southey MC, Park DJ, Lesueur F, Odefrey F, Nguyen-Dumont T, Hammet F, Neuhausen SL, John EM, Andrulis IL, Chenevix-Trench G, Baglietto L, Le Calvez-Kelm F, Pertesi M, Lonie A, Pope B, Sinilnikova O, Tsimiklis H, Giles GG, Hopper JL, Tavtigian SV, Goldgar DE. Identification of new breast cancer predisposition genes via whole exome sequencing. Hered Cancer Clin Pract 2012. [PMCID: PMC3327171 DOI: 10.1186/1897-4287-10-s2-a40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
45
|
Wainberg ZA, Lin LS, DiCarlo B, Dao KM, Patel R, Park DJ, Wang HJ, Elashoff R, Ryba N, Hecht JR. Phase II trial of modified FOLFOX6 and erlotinib in patients with metastatic or advanced adenocarcinoma of the oesophagus and gastro-oesophageal junction. Br J Cancer 2011; 105:760-5. [PMID: 21811258 PMCID: PMC3171005 DOI: 10.1038/bjc.2011.280] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [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: 06/01/2011] [Revised: 06/28/2011] [Accepted: 07/08/2011] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND There is increased recognition that cancers of the upper GI tract comprise distinct epidemiological and molecular entities. Erlotinib has shown activity in patients with adenocarcinoma of the oesophagus/gastro-oesophageal junction (GEJ), but not in distal gastric cancer. mFOLFOX6 is one of several active regimens used to treat adenocarcinoma of the Eso/GEJ. This study evaluates the efficacy and safety of mFOLFOX6 and erlotinib in patients with metastatic or advanced Eso/GEJ cancers. METHODS Patients with previously untreated advanced or metastatic Eso/GEJ adenocarcinoma are treated with oxaliplatin 85 mg m(-2), 5-FU 400 mg m(-2), LV 400 mg m(-2) on day 1, 5-FU 2400 mg m(-2) over 48 h and erlotinib 150 mg PO daily. Treatment was repeated every 14 days. The primary objective was response rate (RR), secondary objectives include toxicity, progression-free survival (PFS), overall survival (OS) and to correlate clinical outcome with expression patterns and molecular alterations in the epidermal growth factor receptor-dependent pathways. RESULTS A total of 33 patients were treated and evaluable: there were two complete responses, 15 partial responses for an objective RR of 51.5% (95% CI, 34.5-68.6%). Median PFS was 5.5 months (95% CI, 3.1-7.5 months) and median OS was 11.0 months (95% CI, 8.0-17.4 months). The most common grade 3-4 toxicities were: diarrhoea (24%), nausea/vomiting (11%), skin rash (8%) and peripheral neuropathy (8%). The frequency of alterations was KRAS mutations (8%), EGFR mutations (0%) and HER2 amplification (19%). CONCLUSION In patients with Eso/GEJ adenocarcinoma, mFOLFOX6 and erlotinib is active, has an acceptable toxicity profile and FOLFOX ± erlotinib could be considered for further development.
Collapse
Affiliation(s)
- Z A Wainberg
- Division of Hematology/Oncology, Department of Medicine, Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Lee HE, Park DJ, Kim WH, Kim HH, Lee HS. High FOXP3+ regulatory T-cell density in the sentinel lymph node is associated with downstream non-sentinel lymph-node metastasis in gastric cancer. Br J Cancer 2011; 105:413-9. [PMID: 21730981 PMCID: PMC3172906 DOI: 10.1038/bjc.2011.248] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [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] [Indexed: 01/13/2023] Open
Abstract
Background: We aimed to evaluate the immunologic nature of sentinel lymph nodes (SLNs) in gastric cancer patients and to determine whether it can predict non-SLN metastasis. Methods: Sentinel lymph node samples were collected from 64 gastric carcinoma patients who had undergone gastrectomy with SLN biopsy. One representative SLN sample was selected from each patient and was subjected to immunostaining for CD8, CD57, FOXP3, and DC-LAMP. The numbers of marker-positive cells in each sample were counted. The relationships between various immune cell densities and clinicopathologic parameters or metastasis status of SLNs and non-SLNs were sought. Results: High FOXP3+ Treg density of the SLN was found to be significantly associated with the presence of metastasis in either SLNs or non-SLNs. DC-LAMP+ cell density of the SLN was the highest at the isolated tumours cell level, and this decreased along with an increase in tumour metastasis in either SLNs or non-SLNs. Univariate and multivariate logistic regression models revealed that high FOXP3+ Treg density of the SLN was an independently significant predictor of non-SLN metastasis. Conclusions: This study is the first to indicate an important role of SLNs in metastatic dissemination of gastric cancer. Our findings suggest that Tregs could be a new therapeutic target for regulating the metastasis of gastric cancer.
Collapse
Affiliation(s)
- H E Lee
- Department of Pathology, Seoul National University Hospital, 28 Yeongon-dong, Jongno-gu, Seoul 110-744, Korea
| | | | | | | | | |
Collapse
|
47
|
Neafsey DE, Lawniczak MKN, Park DJ, Redmond SN, Coulibaly MB, Traoré SF, Sagnon N, Costantini C, Johnson C, Wiegand RC, Collins FH, Lander ES, Wirth DF, Kafatos FC, Besansky NJ, Christophides GK, Muskavitch MAT. SNP genotyping defines complex gene-flow boundaries among African malaria vector mosquitoes. Science 2010; 330:514-517. [PMID: 20966254 DOI: 10.1126/science.1193036] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mosquitoes in the Anopheles gambiae complex show rapid ecological and behavioral diversification, traits that promote malaria transmission and complicate vector control efforts. A high-density, genome-wide mosquito SNP-genotyping array allowed mapping of genomic differentiation between populations and species that exhibit varying levels of reproductive isolation. Regions near centromeres or within polymorphic inversions exhibited the greatest genetic divergence, but divergence was also observed elsewhere in the genomes. Signals of natural selection within populations were overrepresented among genomic regions that are differentiated between populations, implying that differentiation is often driven by population-specific selective events. Complex genomic differentiation among speciating vector mosquito populations implies that tools for genome-wide monitoring of population structure will prove useful for the advancement of malaria eradication.
Collapse
Affiliation(s)
| | | | - D J Park
- Broad Institute, Cambridge, MA 02142, USA
| | | | | | - S F Traoré
- Malaria Research and Training Center, Bamako, Mali
| | - N Sagnon
- Centre National de Recherche et Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - C Costantini
- Institut de Recherche pour le Développement, Unité de Recherche R016, Montpellier, France.,Organisation de Coordination pour la Lutte contre les Endémies en Afrique Centrale, Yaounde, Cameroon
| | - C Johnson
- Broad Institute, Cambridge, MA 02142, USA
| | | | - F H Collins
- University of Notre Dame, Notre Dame, IN 46556, USA
| | - E S Lander
- Broad Institute, Cambridge, MA 02142, USA
| | - D F Wirth
- Broad Institute, Cambridge, MA 02142, USA.,Harvard School of Public Health, Boston, MA 02115, USA
| | | | - N J Besansky
- University of Notre Dame, Notre Dame, IN 46556, USA
| | | | - M A T Muskavitch
- Broad Institute, Cambridge, MA 02142, USA.,Harvard School of Public Health, Boston, MA 02115, USA.,Boston College, Chestnut Hill, MA 02467, USA
| |
Collapse
|
48
|
Park DJ, Kim TJ, Lee HJ, Lee KE, Lee SJ, Seo SR, Yoon W, Moon KS, Lee KW, Lee SS, Park YW. De novo appearance of primitive neuroectodermal tumor in a patient with systemic lupus erythematosus and moyamoya disease. Lupus 2010; 19:989-92. [DOI: 10.1177/0961203310364399] [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: 11/17/2022]
Abstract
Primitive neuroectodermal tumor is a rare brain tumor composed of undifferentiated or poorly differentiated neuroepithelial cells with a high malignant potential that usually occurs in children, and which is only occasionally encountered in adults. A 19-year-old female with systemic lupus erythematosus presented with right hemiparesis and a headache of 10 days duration. Brain magnetic resonance imaging showed a large solid mass with necrotic portions in the left frontoparietal lobe. Primitive neuroectodermal tumor was confirmed by a neuronavigator-guided brain biopsy. This is the first case report of primitive neuroectodermal tumor associated with systemic lupus erythematosus and moyamoya disease. This case demonstrates that brain tumors, such as primitive neuroectodermal tumor, should be included in the differential diagnosis of neurological manifestations in children and adolescent patients with systemic lupus erythematosus.
Collapse
Affiliation(s)
- DJ Park
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - TJ Kim
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - HJ Lee
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - KE Lee
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - SJ Lee
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - SR Seo
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - W. Yoon
- Department of Radiology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - KS Moon
- Department of Neurosurgery, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea
| | - KW Lee
- Department of Pathology, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea
| | - SS Lee
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - YW Park
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea,
| |
Collapse
|
49
|
Lee KW, Bang SM, Kim S, Lee HJ, Shin DY, Koh Y, Lee YG, Cha Y, Kim YJ, Kim JH, Park DJ, Kim HH, Oh D, Lee JS. The incidence, risk factors and prognostic implications of venous thromboembolism in patients with gastric cancer. J Thromb Haemost 2010; 8:540-7. [PMID: 20040044 DOI: 10.1111/j.1538-7836.2009.03731.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [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: 12/19/2022]
Abstract
BACKGROUND Data on venous thromboembolism (VTE) in gastric cancer (GC) are very scarce. OBJECTIVE To investigate the incidence, risk factors and prognostic implications of VTE in Asian GC patients. METHODS Prospective databases containing clinical information on GC patients (n = 2,085) were used. RESULTS The 2-year cumulative incidences of all VTE events were 0.5%, 3.5% and 24.4% in stages I, II-IV(M0) and IV(M1), respectively. Advanced stage, older age and no major surgery were independent risk factors for developing VTE. When the VTE cases were classified into extremity venous thrombosis (EVT), pulmonary thromboembolism (PTE) or intra-abdominal venous thrombosis (IVT), IVTs (62%) were more common than EVTs (21%) or PTEs (17%). Although peri-operative pharmacologic thromboprophylaxis was not routinely administered, the VTE incidence after major surgery was only 0.2%. During chemotherapy, EVT/PTE developed more frequently than IVT (54% vs. 19%); however, during untreated or treatment-refractory periods, IVT developed more frequently than EVT/PTE (69% vs. 36%). In multivariate models, the development of EVT/PTE was a significant predictor of early death when compared with no occurrence of VTE (P < 0.05). However, IVT did not affect survival. CONCLUSION This is the largest study that specially focused on VTE in GC and the VTE incidence in Asian GC patients was first demonstrated. Considering the low incidence of post-operative VTE development, the necessity of peri-operative pharmacologic thromboprophylaxis should be evaluated separately in Asian patients. The clinical situation of the development of EVT/PTE and IVT differed. Only EVT/PTE had an adverse effect on survival and IVT had no prognostic significance.
Collapse
Affiliation(s)
- K W Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul, South Korea
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Kim BK, Lee WJ, Oh SJ, Kim JM, Park DJ. Preparation of Folic Acid-loaded WPI (Whey Protein Isolate) Nanoparticles by Cold-induced Gelation. Korean J Food Sci Anim Resour 2010. [DOI: 10.5851/kosfa.2010.30.1.95] [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
|