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Chan JCN, Thewjitcharoen Y, Nguyen TK, Tan A, Chia YC, Hwu CM, Jian D, Himathongkam T, Wong KL, Choi YM, Mirasol R, Mohamed M, Kong APS, Ma RCW, Chow EYK, Ozaki R, Lau V, Fu AWC, Hong EG, Yoon KH, Tsang CC, Lau ESH, Lim LL, Luk AOY. Effect of a Web-Based Management Guide on Risk Factors in Patients With Type 2 Diabetes and Diabetic Kidney Disease: A JADE Randomized Clinical Trial. JAMA Netw Open 2022; 5:e223862. [PMID: 35333363 PMCID: PMC8956973 DOI: 10.1001/jamanetworkopen.2022.3862] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
IMPORTANCE Diabetic kidney disease (DKD) and its comorbidities can be prevented by treating multiple targets. Technology-assisted team-based care with regular feedback and patient empowerment can improve the attainment of multiple targets and clinical outcomes in patients with type 2 diabetes, but the effects of this intervention on patients with DKD are unclear. OBJECTIVE To evaluate the effect of the Joint Asia Diabetes Evaluation (JADE) web portal, nurse reminders, and team-based care on multiple risk factors in patients with DKD. DESIGN, SETTING, AND PARTICIPANTS This 12-month multinational, open-label randomized clinical trial was conducted between June 27, 2014, and February 19, 2019, at 13 hospital-based diabetes centers in 8 countries or regions in Asia. All patients who participated had DKD. The intention-to-treat data analysis was performed from April 7 to June 30, 2020. INTERVENTIONS Patients were randomized in a 1:1:1 ratio at each site to usual care, empowered care, or team-based empowered care. All patients underwent a JADE web portal-guided structured assessment at baseline and month 12. Patients in the usual care and empowered care groups received a medical follow-up. Patients in the empowered care group also received a personalized JADE report and nurse telephone calls every 3 months. Patients in the team-based empowered care group received additional face-to-face reviews every 3 months from a physician-nurse team. MAIN OUTCOMES AND MEASURES The primary outcome was the proportion of patients who attained multiple treatment targets (defined as ≥3 of 5 targets: HbA1c level <7.0% [53 mmol/mol], blood pressure <130/80 mm Hg, low-density lipoprotein cholesterol level <1.8 mmol/L, triglyceride level <1.7 mmol/L, and/or persistent use of renin-angiotensin-aldosterone system inhibitors). RESULTS A total of 2393 patients (mean [SD] age, 67.7 [9.8] years; 1267 men [52.9%]) were randomized to the usual care group (n = 795), empowered care group (n = 802), and team-based empowered care group (n = 796). At baseline, 34.7% patients (n = 830) were on 3 treatment targets. On intention-to-treat analysis, the team-based empowered care group had the highest proportion of patients who had further increase in attainment of multiple treatment targets (within-group differences: usual care group, 3.9% [95% CI, 0.0%-7.8%]; empowered care group, 1.3% [95% CI, -2.8% to 5.4%]; team-based empowered care group, 9.1% [95% CI, 4.7%-13.5%]). The team-based empowered care group was more likely to attain multiple treatment targets than the usual care group (risk ratio [RR], 1.17; 95% CI, 1.00-1.37) and the empowered care group (RR, 1.25; 95% CI, 1.06-1.48) after adjustment for site. Compared with the group that did not attain multiple treatment targets, the group that attained multiple treatment targets reported a lower incidence of cardiovascular, kidney, and cancer events (8.4% [n = 51] vs 14.5% [n = 134]; P = .004). Analysis of the per-protocol population yielded similar results. CONCLUSIONS AND RELEVANCE This trial found that technology-assisted team-based care for 12 months improved the attainment of multiple treatment targets as well as empowerment in patients with DKD. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02176278.
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Affiliation(s)
- Juliana C. N. Chan
- Asia Diabetes Foundation, Shatin, Hong Kong Special Administrative Region (SAR), China
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
| | | | | | | | - Yook-Chin Chia
- Department of Medical Sciences, Sunway University, Selangor, Malaysia
- Department of Primary Care Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Chii-Min Hwu
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Du Jian
- Department of Endocrinology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | | | - Kim-Leng Wong
- Department of Primary Care Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Yun-Mi Choi
- Department of Internal Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Roberto Mirasol
- Section of Endocrinology, Diabetes and Metabolism, St Luke's Medical Center, Quezon City, Philippines
| | - Mafauzy Mohamed
- Department of Medicine, Universiti Sains Malaysia, Kota Bahru, Malaysia
| | - Alice P. S. Kong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
| | - Ronald C. W. Ma
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
| | - Elaine Y. K. Chow
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
| | - Risa Ozaki
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
| | - Vanessa Lau
- Asia Diabetes Foundation, Shatin, Hong Kong Special Administrative Region (SAR), China
| | - Amy W. C. Fu
- Asia Diabetes Foundation, Shatin, Hong Kong Special Administrative Region (SAR), China
| | - Eun-Gyoung Hong
- Department of Internal Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Kun-Ho Yoon
- Department of Endocrinology and Metabolism, Seoul St Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Chiu-Chi Tsang
- Department of Medicine, Alice Ho Miu Ling Nethersole Hospital, Tai Po, Hong Kong SAR, China
| | - Eric S. H. Lau
- Asia Diabetes Foundation, Shatin, Hong Kong Special Administrative Region (SAR), China
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
| | - Lee-Ling Lim
- Asia Diabetes Foundation, Shatin, Hong Kong Special Administrative Region (SAR), China
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Andrea O. Y. Luk
- Asia Diabetes Foundation, Shatin, Hong Kong Special Administrative Region (SAR), China
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
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Park CH, Lee B, Oh E, Kim YS, Choi YM. Combined effects of sous-vide cooking conditions on meat and sensory quality characteristics of chicken breast meat. Poult Sci 2020; 99:3286-3291. [PMID: 32475464 PMCID: PMC7597729 DOI: 10.1016/j.psj.2020.03.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/19/2020] [Indexed: 11/18/2022] Open
Abstract
This study investigated the combined effects of cooking temperature and time on the meat and eating quality characteristics of the sous-vide chicken breast. For the control group, chicken breast samples were cooked in a convection oven until the internal temperature reached 71°C. Each sample for sous-vide cooking was vacuum packaged and then cooked under continuous thermocontrolled conditions in a water bath at 6 combinations of cooking temperature (60 and 70°C) and time (1, 2, and 3 h). Sous-vide cooked chicken meat at 60°C for 1 h (SV60-1h) showed lower cooking loss (6.58 vs. 26.5%, P < 0.05), Warner-Bratzler shear force (21.7 vs. 29.1 N, P < 0.05), and hardness (9.40 vs. 17.3 N, P < 0.05) than meat cooked by conventional oven. Similar to the objective tenderness parameters, cooked chicken meat from the SV60 treatments for all cooking times showed higher scores in all the tenderness attributes than the control group (P < 0.05). However, a higher flavor intensity was observed in the SV70-3h and control groups than in the SV60 treatments (P < 0.05). Owing to a lesser developed flavor in chicken meat from the SV60-1h treatment, the SV60-2h and 3h treatments were assigned a higher acceptability rating for overall impression (P < 0.05). Therefore, cooking temperature and time of sous-vide significantly influenced the physicochemical and palatability characteristics of chicken breast. In this study, the optimum conditions for the sous-vide chicken breast are to continuously cook at 60°C for 2 to 3 h to improve sensory quality characteristics without reducing the water-holding capacity.
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Affiliation(s)
- C H Park
- Department of Integrated Biomedical and Life Sciences, Korea University, Seoul, South Korea; Department of Hotel and Food Service Culinary Art, Daejeon Health Institute of Technology, Daejeon, South Korea
| | - B Lee
- Department of Animal Sciences, Kyungpook National University, Sangju, South Korea
| | - E Oh
- Department of Animal Sciences, Kyungpook National University, Sangju, South Korea
| | - Y S Kim
- Department of Integrated Biomedical and Life Sciences, Korea University, Seoul, South Korea.
| | - Y M Choi
- Department of Animal Sciences, Kyungpook National University, Sangju, South Korea.
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Byeon GJ, Park J, Choi YM, Ri HS, Yoon JU, Choi EJ. Celiac Plexus Neurolysis for the Treatment of Patients with Terminal Cancer at a Tertiary University Hospital in Korea. Hanguk Hosupisu Wanhwa Uiryo Hakhoe Chi 2020; 23:5-10. [PMID: 37496890 PMCID: PMC10332707 DOI: 10.14475/kjhpc.2020.23.1.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/28/2019] [Accepted: 10/24/2019] [Indexed: 07/28/2023]
Abstract
Purpose The aim of this study was to investigate celiac plexus neurolysis (CPN) for the treatment of cancerous upper abdominal pain in a tertiary university hospital in Korea. Methods At the tertiary university hospital in Korea, electronic medical records of cancer patients who underwent CPN and died in the hospital from November 2009 to June 2018 were retrospectively analyzed. Results The total number of subjects was 51. The 17 patients were from the Department of Gastroenterology (33.0%), followed by 11 patients from the Department of Hemato-oncology (21.6%), 11 patients from the Department of Anesthesia and Pain Medicine (21.6%), 9 patients from the Department of General Surgery (17.6%). The diagnosis was pancreatic cancer in 15 patients (29.4%), stomach cancer in 8 patients (15.7%), hepatobiliary cancer in 20 patients (39.2%), colon cancer in 1 patient (2.0%), esophageal cancer in 2 patient (3.9%) and intra-abdominal metastasis in 5 patients (9.8%). The mean survival time after the surgery was 66.4±55.0 days. The pain intensity before and 1 week after the procedure significantly decreased, but the amounts of opioids consumed before and 1 week after the procedure were not statistically significant. Side effects occurred after the procedure including temporary localized pain in 24 patients (47.0%), hypotension in 12 (23.5%), and diarrhea in 6 (11.8%). Conclusion CPN is an effective and safe procedure for reducing upper abdominal pain caused by cancer, and it is necessary to perform CPN within the appropriate time by establishing a system of interdepartmental cooperation.
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Affiliation(s)
- Gyeong-Jo Byeon
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - JuYeon Park
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Yun-Mi Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hyun-Su Ri
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ji-Uk Yoon
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Eun-Ji Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
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Choi YM, Choi EJ, Ri HS, Park JY, You JA, Byeon GJ. The effect of dexmedetomidine and midazolam on combined spinal-epidural anesthesia in patients undergoing total knee arthroplasty. Anesth Pain Med (Seoul) 2020; 15:111-119. [PMID: 33329799 PMCID: PMC7713863 DOI: 10.17085/apm.2020.15.1.111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/30/2019] [Accepted: 09/17/2019] [Indexed: 11/17/2022] Open
Abstract
Background Intravenous dexmedetomidine has been reported to potentiate the anesthetic effect of local anesthetics and improve the quality of postoperative analgesia when used as an adjuvant in neuraxial block. We compared the effects of intravenous dexmedetomidine and midazolam for sedation on combined spinal-epidural (CSE) anesthesia. Methods This study included 50 patients undergoing total knee arthroplasty. CSE anesthesia was given using 10 mg bupivacaine for all patients. After checking the maximum sensory and motor levels, the patients were randomly allocated into two groups of 25 each to receive intravenous continuous infusion of dexmedetomidine (Group D) or midazolam (Group M) for sedation during surgery. Regression block level, hemodynamic changes, and sedation score were compared between the groups when the patients entered the postanesthetic care unit (PACU). For patient-controlled epidural analgesia, 0.2% levobupivacaine with 650 µg of fentanyl (150 ml in total) was infused at a rate of 1 ml/h, in addition to a 3-ml bolus dose with a 30-min lockout time. The visual analogue scale scores, additional analgesic demand, patient satisfaction, and adverse events between the two groups were also compared postoperatively. Results A significant difference was observed in relation to the sensory block level in the PACU (Group D: 6.3 ± 2.1; Group M: 3.2 ± 1.9) (P = 0.002). The motor block level and other outcomes showed no significant intergroup differences. Conclusions Intravenous injection of dexmedetomidine, rather than midazolam, for procedural sedation is associated with prolonged sensory block, with comparable incidences of adverse events during CSE anesthesia.
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Affiliation(s)
- Yun-Mi Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Eun-Ji Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hyun-Su Ri
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ju Yeon Park
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Jun-A You
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea
| | - Gyeong-Jo Byeon
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
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Choi EJ, Yoon JP, Choi YM, Park JY, Kim HY, Byeon GJ. Intravenous infusion of dexmedetomidine amplifies thoracic epidural analgesic effect after open thoracotomy: A prospective, double-blind, randomized controlled trial. Medicine (Baltimore) 2019; 98:e17983. [PMID: 31770207 PMCID: PMC6890340 DOI: 10.1097/md.0000000000017983] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The anesthetic-sparing effect of dexmedetomidine has led to its use as a general adjuvant. The present study aimed to determine intravenous infusion of dexmedetomidine to epidural analgesia after open thoracotomy. METHODS Forty-four patients scheduled for admission to the intensive care unit after open thoracotomy were divided into 2 groups. An epidural catheter was placed at T4 to T7. Thirty minutes before the end of thoracotomy, group D was injected with 0.3 μg/kg/h of dexmedetomidine and group C received an equal dose of normal saline. For patient-controlled epidural analgesia (PCEA), 150 mL of levobupivacaine 300 mg was infused at a rate of 1 mL/h, plus a bolus dose of 3 mL with a lockout time of 30 minutes. The primary outcome evaluated was analgesic efficacy using a visual analog scale (VAS) 48 hours postoperatively. Other outcomes included additional analgesic use, total consumed local analgesia via PCEA, sedation score, blood pressure, heart rate, arterial blood gases, patient satisfaction, and adverse effects. RESULTS The VAS scores in group D were significantly lower than that in group C immediately, 1, 4, 12, 36, and 48 hours after admission to the intensive care unit (P = .016, .009, .015, .002, .001, and .042, respectively). The total dose of additional analgesic was also significantly lower in group D (P = .011). Patient satisfaction was higher in group D (P < .05). There were no significant differences in the other outcomes between groups. CONCLUSION Intravenous infusion of dexmedetomidine amplifies thoracic epidural analgesic effect after open thoracotomy.
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Affiliation(s)
- Eun-Ji Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Gyeongnam, Republic of Korea
| | - Jung-Pil Yoon
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine
| | - Yun-Mi Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Gyeongnam, Republic of Korea
| | - Ju Yeon Park
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Gyeongnam, Republic of Korea
| | - Hee Young Kim
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Gyeongnam, Republic of Korea
| | - Gyeong-Jo Byeon
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Gyeongnam, Republic of Korea
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Choi EJ, Choi YJ, Lee SW, Choi YM, Ri HS, Park JY, Park SJ, Son JM, Lee YS. Effect of anesthetic method on incidence of delirium after total hip replacement arthroplasty in South Korea: a population-based study using National Health Insurance claims data. Korean J Anesthesiol 2019; 73:36-43. [PMID: 31378056 PMCID: PMC7000278 DOI: 10.4097/kja.19091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 03/07/2019] [Accepted: 07/22/2019] [Indexed: 11/11/2022] Open
Abstract
Background There are various reports on the effects of the anesthetic method on neurologic complications. A population-based study was conducted to estimate the effect of anesthetic method on the incidence of postoperative delirium in patients that underwent total hip replacement arthroplasty in South Korea. Methods The Korean National Health Insurance claims database was used to retrospectively identify and analyze 24,379 cases of total hip replacement arthroplasty, defined as patients having a claim record with the operation code ‘N0711,’ from January 2008 to December 2017. Patients were divided into two groups, a general anesthesia group (n = 9,921) and a regional anesthesia group (n = 14,458). The incidence of delirium was assessed in cases when patients used medications for delirium, such as haloperidol, chlorpromazine, olanzapine, and risperidone. Results Of the 9,921 patients receiving general anesthesia and 14,458 receiving regional anesthesia, 142 (1.43%) and 209 (0.86%) experienced postoperative delirium after total hip replacement arthroplasty, respectively. There was no significant difference between the groups (P = 0.92). In logistic regression analysis, sex (P = 0.038) and patients with acquired immune deficiency syndrome (P = 0.008) were predictors of postoperative delirium. Conclusions Our results revealed that the anesthetic method was not associated with the incidence of postoperative delirium. In addition, the results suggest that male patients and patients with acquired immune deficiency syndrome undergoing total hip replacement arthroplasty carefully managed for postoperative delirium after surgery.
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Affiliation(s)
- Eun-Ji Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Yoon Ji Choi
- Department of Anesthesiology and Pain Medicine, Ansan Hospital, Korea University College of Medicine, Ansan, Republic of Korea
| | - Sang Won Lee
- Department of Anesthesiology and Pain Medicine, Ansan Hospital, Korea University College of Medicine, Ansan, Republic of Korea
| | - Yun-Mi Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hyun-Su Ri
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ju Yeon Park
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Soon Ji Park
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Jung-Min Son
- Department of Biostatistics, Clinical Trial Center, Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Yoon Sook Lee
- Department of Anesthesiology and Pain Medicine, Ansan Hospital, Korea University College of Medicine, Ansan, Republic of Korea
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Choi YM, Choi YJ, Choi EJ, Ri HS, Park JY, Koh KH, Yoon SZ, Cha JR, Lee KS. The effect of early extubation on postoperative delirium in patients with liver transplantation: a propensity score matching analysis. Anesth Pain Med (Seoul) 2019. [DOI: 10.17085/apm.2019.14.3.322] [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: 11/17/2022] Open
Affiliation(s)
- Yun-Mi Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Yoon Ji Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Eun-Ji Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hyun-Su Ri
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ju Yeon Park
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Kyung Hee Koh
- Department of Anesthesiology and Pain Medicine, Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Seung Zhoo Yoon
- Department of Anesthesiology and Pain Medicine, Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Jae Ryung Cha
- Department of Anesthesiology and Pain Medicine, Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Kuen Su Lee
- Department of Anesthesiology and Pain Medicine, Ansan Hospital, Korea University College of Medicine, Ansan, Korea
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Abstract
AIMS Children commonly sustain heat contact type burn injuries from sun heated surfaces during the summer months in hot, sunny climates. The aim of this study was to review the causes and outcomes in a series of heat contact type burns sustained by children who touched hot sun heated surfaces. METHODS A retrospective chart review was performed to identify all children who sustained burn injuries due to naturally heated surfaces and were treated between January 2012 and December 2017 at Children's Hospital Colorado. Demographics of the subjects and clinical data regarding their burn injuries were collected. RESULTS A total of 58 children were identified over the study period, involving 118 burn wounds. The median age was 17 months (interquartile range = 14-23), and 33 were male (57%). Mean total body surface area (TBSA) was 1.4% (standard deviation = 1). A foot was the most commonly involved area, affecting 36 subjects (62%). The most common causes of these burn injuries were metal thresholds (n = 7, 12%) and metal covers or lids (n = 5, 9%) outside the home. The depth of the burn injury was partial thickness in 57 children (98%). The mean time to heal was 12 ± 6 days, and the majority of injuries occurred in June (n = 28, 48%). CONCLUSION Heat contact type burn injuries from sun heated surfaces commonly affect children ⩽2 years of age during the summer months, and the majority of these injuries occur around the home environment. They are preventable injuries, and this information should be used for prevention and education materials for parents and healthcare providers, who reside in hot, sunny climates.
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Affiliation(s)
- Y M Choi
- Rutgers New Jersey Medical School, Newark, NJ, USA
- Division of Pediatric Surgery, Children's Hospital Colorado, 13123 E. 16th Avenue B245, Aurora, CO 80045, USA
| | - T Chopra
- Division of Pediatric Surgery, Children's Hospital Colorado, Aurora, CO, USA
| | - D Smith
- Division of Pediatric Surgery, Children's Hospital Colorado, Aurora, CO, USA
| | - S Moulton
- Division of Pediatric Surgery, Children's Hospital Colorado, Aurora, CO, USA
- School of Medicine, University of Colorado, Aurora, CO, USA
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Lee B, Yoon S, Choi YM. Comparison of marbling fleck characteristics between beef marbling grades and its effect on sensory quality characteristics in high-marbled Hanwoo steer. Meat Sci 2019; 152:109-115. [PMID: 30844620 DOI: 10.1016/j.meatsci.2019.02.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 10/03/2018] [Revised: 02/19/2019] [Accepted: 02/26/2019] [Indexed: 12/13/2022]
Abstract
The aim of this study was to compare the intramuscular fat (IMF) content and marbling fleck characteristics measured by computerized image analysis among the eight grades of Korean beef marbling standard (BMS). Additionally, this study examined the effects of the marbling fleck characteristics on objective tenderness parameters and sensory quality characteristics in high-marbled Hanwoo steers (BMS grades 7 to 9). Marked differences were observed in marbling fleck characteristics among the BMS grades (P < .05), whereas the coarseness was similar in high-marbled beef (P > .05). Due to a greater extent of coarse marbling fleck, coarse marbled steaks from high-marbled cattle were assigned higher scores of tenderness attributes, including softness, initial tenderness, and chewiness, as well as mouth coating, but were assigned lower acceptability ratings for IMF content and overall impression compared to fine marbled steaks (P < .05). Taken together, considering the marbling fleck traits can be an effective tool for improving the accuracy of beef grading systems.
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Affiliation(s)
- B Lee
- Department of Animal Sciences, Kyungpook National University, South Korea
| | - S Yoon
- Korea Institute for Animal Products Quality Evaluation, South Korea
| | - Y M Choi
- Department of Animal Sciences, Kyungpook National University, South Korea.
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10
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Byeon GJ, Choi EJ, Choi YM, Chang EJ, Kim HJ, Kim KH. Oblique interlaminar lumbar epidural steroid injection for management of low back pain with lumbosacral radicular pain - A case report -. Anesth Pain Med (Seoul) 2017. [DOI: 10.17085/apm.2017.12.4.375] [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: 11/17/2022] Open
Affiliation(s)
- Gyeong-Jo Byeon
- Department of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea
| | - Eun-Ji Choi
- Department of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea
| | - Yun-Mi Choi
- Department of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea
| | - Eun-Jung Chang
- Department of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea
| | - Hye-Jin Kim
- Department of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea
| | - Kyung-Hoon Kim
- Department of Anesthesia and Pain Medicine, Pusan National University School of Medicine, Yangsan, Korea
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11
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Kim JJ, Kim D, Yim JY, Kang JH, Han KH, Kim SM, Hwang KR, Ku SY, Suh CS, Kim SH, Choi YM. Polycystic ovary syndrome with hyperandrogenism as a risk factor for non-obese non-alcoholic fatty liver disease. Aliment Pharmacol Ther 2017; 45:1403-1412. [PMID: 28370150 DOI: 10.1111/apt.14058] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 12/13/2016] [Accepted: 03/04/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is known to be associated with polycystic ovary syndrome (PCOS). However, most studies investigated the prevalence of NAFLD in obese PCOS patients. AIM To compare the prevalence of non-obese NAFLD in women with or without PCOS, and to assess an independent association between PCOS and NAFLD in a non-obese Asian cohort. METHODS This was a case-control study using a prospective PCOS cohort. After subjects with other potential causes of chronic liver disease were excluded, 275 non-obese women with PCOS and 892 non-obese controls were enrolled. NAFLD was determined by hepatic ultrasonography. Main outcomes were the prevalence of NAFLD on hepatic ultrasonography between non-obese women with or without PCOS, and an independent association between non-obese NAFLD and PCOS. RESULTS Non-obese women with PCOS had a significantly higher prevalence of NAFLD than those without PCOS (5.5% vs. 2.8%, P = 0.027). PCOS was associated with non-obese NAFLD (odds ratio: 2.62, 95% confidence intervals: 1.25-5.48) after adjustment for age and body mass index (BMI). In women with PCOS, the level of androgenicity represented by free testosterone or free androgen index was associated with NAFLD after adjustment for age, BMI, lipid profile, insulin resistance or glycaemic status. CONCLUSIONS Non-obese NAFLD is more prevalent in women with polycystic ovary syndrome than in those without. In non-obese patients with polycystic ovary syndrome, hyperandrogenemia may be an independent risk factor for non-obese NAFLD.
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Affiliation(s)
- J J Kim
- Department of Obstetrics and Gynecology, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.,The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea
| | - D Kim
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.,Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA
| | - J Y Yim
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - J H Kang
- Department of Radiology, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - K H Han
- Department of Obstetrics and Gynecology, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - S M Kim
- Department of Obstetrics and Gynecology, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - K R Hwang
- Department of Obstetrics and Gynecology, Seoul Municipal Boramae Hospital, Seoul, Korea
| | - S Y Ku
- The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - C S Suh
- The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - S H Kim
- The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Y M Choi
- The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
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12
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Choi YM, Byeon GJ, Park SJ, Ok YM, Shin SW, Yang K. Postoperative analgesic efficacy of single-shot and continuous transversus abdominis plane block after laparoscopic cholecystectomy: A randomized controlled clinical trial. J Clin Anesth 2017; 39:146-151. [PMID: 28494892 DOI: 10.1016/j.jclinane.2017.03.050] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 08/19/2016] [Revised: 03/08/2017] [Accepted: 03/31/2017] [Indexed: 11/29/2022]
Abstract
STUDY OBJECTIVE To compare the analgesic efficacy of ultrasound-guided single-shot and continuous transversus abdominis plane (TAP) block to that of IV-PCA in patients undergoing laparoscopic cholecystectomy. DESIGN Prospective randomized controlled trial. SETTING Post-anesthesia care unit and General ward. PATIENTS 108 American Society of Anesthesiologist (ASA) physical status I-II patients undergoing laparoscopic cholecystectomy. INTERVENTIONS Group A received IV-PCA; group B received both ultrasound-guided single-shot TAP block with 0.2% ropivacaine (20mL) and IV-PCA; and group C received continuous TAP block using an ultrasound-guidance-inserted indwelling catheter. In group C, infusion of 0.2% ropivacaine at a basal rate of 3mL/h, bolus dose of 4mL, and a lockout interval of 30min was maintained for 48h postoperatively. The primary outcome was evaluated analgesic efficacy using the numeric rating scale (NRS) for 48h postoperatively. Other outcomes included the number of patients requiring additional analgesics, patient satisfaction with postoperative pain control, and incidence of postoperative adverse events. MAIN RESULTS Compared to other groups, group C had higher deep abdominal NRS at 1h postoperatively (P<0.05), and lower incidence of postoperative urinary retention (P<0.05). There were no significant intergroup differences in the number of patients requiring additional analgesics, and patient satisfaction with postoperative pain control. CONCLUSIONS Compared to IV-PCA with or without single-shot TAP block, ultrasound-guided continuous TAP block provided similar analgesia in somatic pain and less analgesia in visceral pain. Moreover, the latter resulted in a lower incidence of postoperative urinary retention.
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Affiliation(s)
- Yun-Mi Choi
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Republic of Korea
| | - Gyeong-Jo Byeon
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Republic of Korea.
| | - Soon-Ji Park
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Republic of Korea
| | - Young-Min Ok
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Republic of Korea
| | - Sang-Wook Shin
- Department of Anesthesia and Pain Medicine, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Republic of Korea
| | - Kwangho Yang
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Republic of Korea
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13
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Choi YM, Kim KB, Lee JH, Chun YK, An IS, An S, Bae S. DBC2/RhoBTB2 functions as a tumor suppressor protein via Musashi-2 ubiquitination in breast cancer. Oncogene 2016; 36:2802-2812. [PMID: 27941885 PMCID: PMC5442418 DOI: 10.1038/onc.2016.441] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 09/10/2016] [Accepted: 10/20/2016] [Indexed: 12/16/2022]
Abstract
The gene encoding ‘deleted in breast cancer 2' (DBC2), also referred to as RHOBTB2 (Rho-related BTB domain-containing protein 2), is classified as a tumor suppressor gene. DBC2 is a substrate-specific adaptor protein for a novel class of Cullin-3 (CUL3)-based E3 ubiquitin ligases; however, it is unclear if the substrate adaptor function of DBC2 is required for its tumor suppressor activity. Furthermore, the key substrates of DBC2-mediated ubiquitination have yet to be identified. In the present study, we established a genome-wide human cDNA library-based in vitro ubiquitination target screening assay and identified Musashi-2 (MSI2) as a novel ubiquitination target protein of DBC2. MSI2 directly interacted with DBC2, and this interaction promoted MSI2 polyubiquitination and proteasomal degradation in breast cancer cells. Overexpression and knockdown experiments demonstrated that DBC2 suppressed MSI2-associated oncogenic functions and induced apoptosis. Immunohistochemistry analysis of a breast cancer tissue microarray revealed that DBC2 and MSI2 protein levels are inversely correlated in both normal breast tissues and breast cancer tissues. Taken together, these findings provide evidence that DBC2 suppresses tumorigenesis in breast cancer by ubiquitinating MSI2.
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Affiliation(s)
- Y M Choi
- KU Center for Integrated Science and Technology, Konkuk University, Seoul, South Korea.,Korea Institute of Dermatological Sciences, 2nd Enterprise Research Building, Chungcheongbuk-do, South Korea
| | - K B Kim
- Korea Institute of Dermatological Sciences, 2nd Enterprise Research Building, Chungcheongbuk-do, South Korea
| | - J H Lee
- Laboratory of Molecular Oncology, Cheil General Hospital and Women's Healthcare Center, Dankook University, College of Medicine, Seoul, South Korea
| | - Y K Chun
- Department of Pathology, Cheil General Hospital and Women's Healthcare Center, Dankook University, College of Medicine, Seoul, South Korea
| | - I S An
- Korea Institute of Dermatological Sciences, 2nd Enterprise Research Building, Chungcheongbuk-do, South Korea
| | - S An
- KU Center for Integrated Science and Technology, Konkuk University, Seoul, South Korea
| | - S Bae
- KU Center for Integrated Science and Technology, Konkuk University, Seoul, South Korea
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14
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Choi YM, Adelzadeh L, Wu JJ. Non-tuberculous mycobacterial infections in psoriasis patients treated with biologics. J Eur Acad Dermatol Venereol 2016; 30:e99-e101. [PMID: 26388307 DOI: 10.1111/jdv.13343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Y M Choi
- Department of Dermatology, Kaiser Permanente Medical Center, Los Angeles, CA, USA
| | - L Adelzadeh
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - J J Wu
- Department of Dermatology, Kaiser Permanente Medical Center, Los Angeles, CA, USA.
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15
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Choi YM, Hwang S, Lee K. Comparison of Muscle Fiber and Meat Quality Characteristics in Different Japanese Quail Lines. Asian-Australas J Anim Sci 2016; 29:1331-7. [PMID: 27383804 PMCID: PMC5003995 DOI: 10.5713/ajas.16.0329] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/03/2016] [Accepted: 06/16/2016] [Indexed: 12/29/2022]
Abstract
The aim of this study was to compare the growth performance, fiber characteristics of the pectoralis major muscle, and meat quality characteristics in the heavy weight (HW) and random bred control (RBC) quail lines and genders. The HW male exhibited more than two times greater body (245.7 vs 96.1 g, p<0.05) and pectoralis major muscle (PMW; 37.1 vs 11.1 g, p<0.05) weights compared to the RBC female. This growth performance in the HW line was associated with a greater muscle fiber area (1,502 vs 663.0 μm2, p<0.001) compared to the RBC line. Greater muscle mass of the HW male was accompanied by a higher percentage of type IIB fiber compared to the HW female (64.0% vs 51.0%, p<0.05). However, muscle fiber hyperplasia (increase in fiber number) has had a somewhat limited effect on PMW between the two lines. On the other hand, the HW line harboring a higher proportion of type IIB fiber showed rapid pH decline at the early postmortem period (6.23 vs 6.41, p<0.05) and lighter meat surface (53.5 vs 47.3, p<0.05) compared to the RBC line harboring a lower proportion of type IIB fiber. There were no significant differences observed in the measurement of water-holding capacity including drip loss (2.74% vs 3.07%, p>0.05) and cooking loss (21.9% vs 20.4%, p>0.05) between the HW and RBC lines. Therefore, the HW quail line developed by selection from the RBC quail, was slightly different in the meat quality characteristics compared to the RBC line, and a marked difference was found in growth performance between the two quail lines.
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Affiliation(s)
- Y M Choi
- Department of Animal Sciences, Kyungpook National University, Sangju 37224, Korea.,Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA
| | - S Hwang
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA.,Animal Biotechnology Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - K Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA
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16
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Kim YJ, Ku SY, Kim YY, Suh CS, Kim SH, Choi YM. MicroRNA Profile of Granulosa Cells after Ovarian Stimulation Differs According to Maturity of Retrieved Oocytes. Geburtshilfe Frauenheilkd 2016; 76:704-708. [PMID: 27365541 DOI: 10.1055/s-0041-111173] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 01/21/2023] Open
Abstract
Background: Recent animal studies demonstrated that regulating the microRNA (miRNA) in granulosa cells (GCs) modulates the meiotic competence of oocytes. However, the difference in expression profiles of miRNAs in human GCs according to the maturity of the oocyte still remains to be elucidated. Objective: This observational study investigated whether the miRNA profile of human GCs differs according to the maturity of the retrieved oocyte after controlled ovarian stimulation for in vitro fertilization (IVF). Methods: Ten women who underwent ovarian stimulation cycles with GnRH agonist long protocols were recruited. The follicular fluid (FF) from dominant follicles was individually aspirated at oocyte retrieval. Oocytes were divided into two groups according to oocyte maturity ("mature group" vs. "immature group"). GCs were collected from the FF and miRNA was analyzed using real-time PCR. Results: Mean number of MII oocytes in the mature group was 1.6 ± 0.9 with none in the immature group (p = 0.008). Mean number of MI oocytes was 5.6 ± 2.1 in the mature group and 1.0 ± 0.0 in the immature group (p = 0.008). The total number of retrieved oocytes was 8.8 ± 1.9 in the mature group and 2.0 ± 1.2 in the immature group (p = 0.008). The GCs of the mature group showed a significantly lower expression of hsa-let-7b compared to the GCs of the immature group (p < 0.001). Conclusion: Taken together, the miRNA expression profiles of human GCs obtained from dominant follicles are associated with maturity of the adjacent oocyte and may be useful as a prognosticator of IVF outcome.
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Affiliation(s)
- Y J Kim
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, South Korea
| | - S-Y Ku
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
| | - Y Y Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
| | - C S Suh
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
| | - S H Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
| | - Y M Choi
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
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17
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Abstract
Introduction: Several studies have found anesthetic agents including propofol in ovarian follicular fluid. However, little is known about the effect of anesthetic agents on ovarian function. We aimed to investigate whether there were differences in the postoperative levels of sex hormones when propofol was used as the anesthetic agent. Methods: A retrospective review was done of 80 patients who underwent ovarian surgery, with 72 infertile women serving as controls. Patients were included in the study if their serum estradiol (E2) and follicle stimulating hormone (FSH) levels were measured during their first postoperative menstrual cycle. Results: Patients were grouped according to the use or non-use of propofol as follows: propofol group (n = 39) and non-propofol group (n = 41). The control group did not undergo surgery. Postoperative E2 levels did not differ between the three groups, but FSH levels were significantly higher in the patients who had undergone surgery compared to controls (p < 0.05). Post-hoc analysis of E2 and FSH levels in the propofol and non-propofol groups did not show any significant differences. Conclusions: The use of propofol did not result in any differences compared to other anesthetic agents in terms of postoperative sex hormone levels after gynecologic surgery. The type of anesthetic agent does not seem to affect the postoperative levels of female sex hormones.
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Affiliation(s)
- H Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S-Y Ku
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H C Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - C S Suh
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S H Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y M Choi
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
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Choi YM, Chen PR, Shin S, Zhang J, Hwang S, Lee K. Mild heat stress enhances differentiation and proliferation of Japanese quail myoblasts and enhances slow muscle fiber characteristics. Poult Sci 2016; 95:1912-7. [PMID: 27038421 DOI: 10.3382/ps/pew116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2016] [Indexed: 12/20/2022] Open
Abstract
The objective of this study was to investigate the effect of mild heat stress on muscle fiber hyperplastic and hypertrophic growth in quail primary myogenic cells to better understand the mechanisms leading to increased skeletal muscle development in avian embryos incubated at a higher temperature. Compared to control cultures maintained at 37°C, incubation at 39°C enhanced myotube length (P < 0.01) and diameter (P < 0.001) at 3 days after differentiation (D3). This enlargement of the myotubes incubated at 39°C can be explained by differences in the fusion index (56.7 vs. 46.2%, P < 0.05) and nuclei number per myotube (18.1 vs. 10.8, P < 0.001) compared to the control cells at D3. Additionally, a higher density of myotubes at D3 in cultures exposed to a higher temperature were related to higher levels of Pax-7 (P < 0.05) compared to the control cells incubated continuously at 37°C. These results indicated a higher proliferative capacity in cells exposed to mild heat stress compared to the control cells. On the other hand, mild heat stress enhanced protein levels of slow myosin heavy chain isoform (P < 0.01) and cytochrome c oxidase subunit IV (P < 0.01) compared to the control cells at D3. These discrepancies in protein expression indicated maintenance of slow muscle fiber type characteristics in myotubes incubated at 39°C. Our results suggest that mild heat stress plays a significant role in myogenic mechanisms related to muscle mass and development.
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Affiliation(s)
- Y M Choi
- Department of Animal Sciences, Kyungpook National University, Sangju 37224, South Korea Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210
| | - P R Chen
- Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210
| | - S Shin
- Department of Animal Biotechnology, Kyungpook National University, Sangju 37224, South Korea Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210
| | - J Zhang
- Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210
| | - S Hwang
- Animal Biotechnology Division, National Institute of Animal Science, RDA, Wanju-gun, Jeonbuk 565-851, Republic of Korea Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210
| | - K Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210
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Kim DH, Kim SK, Park SK, Yoo KY, Hwang TJ, Choi YM. Korea hemophilia foundation registry trends 1991-2012: patient registry, demographics, health services utilization. Haemophilia 2015. [PMID: 26212599 DOI: 10.1111/hae.12744] [Citation(s) in RCA: 4] [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: 11/29/2022]
Affiliation(s)
- D H Kim
- Department of Pediatrics, College of Medicine, Inha University, Incheon, Korea
| | - S K Kim
- Department of Pediatrics, College of Medicine, Inha University, Incheon, Korea
| | - S K Park
- College of Medicine, Ulsan University, Ulsan, Korea
| | - K Y Yoo
- Korea Hemophilia Foundation, Seoul, Korea
| | - T J Hwang
- Korea Hemophilia Foundation, Seoul, Korea
| | - Y M Choi
- Korea Hemophilia Foundation, Seoul, Korea
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20
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Choe JH, Choi MH, Ryu YC, Go GW, Choi YM, Lee SH, Lim KS, Lee EA, Kang JH, Hong KC, Kim BC. Estimation of pork quality traits using exsanguination blood and postmortem muscle metabolites. Asian-Australas J Anim Sci 2015; 28:862-9. [PMID: 25925063 PMCID: PMC4412983 DOI: 10.5713/ajas.14.0768] [Citation(s) in RCA: 6] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 11/17/2014] [Accepted: 12/09/2014] [Indexed: 11/27/2022]
Abstract
The current study was designed to estimate the pork quality traits using metabolites from exsanguination blood and postmortem muscle simultaneously under the Korean standard pre- and post-slaughter conditions. A total of 111 Yorkshire (pure breed and castrated male) pigs were evaluated under the Korean standard conditions. Measurements were taken of the levels of blood glucose and lactate at exsanguination, and muscle glycogen and lactate content at 45 min and 24 h postmortem. Certain pork quality traits were also evaluated. Correlation analysis and multiple regression analysis including stepwise regression were performed. Exsanguination blood glucose and lactate levels were positively correlated with each other, negatively related to postmortem muscle glycogen content and positively associated with postmortem muscle lactate content. A rapid and extended postmortem glycolysis was associated with high levels of blood glucose and lactate, with high muscle lactate content, and with low muscle glycogen content during postmortem. In addition, these were also correlated with paler meat color and reduced water holding capacity. The results of multiple regression analyses also showed that metabolites in exsanguination blood and postmortem muscle explained variations in pork quality traits. Especially, levels of blood glucose and lactate and content of muscle glycogen at early postmortem were significantly associated with an elevated early glycolytic rate. Furthermore, muscle lactate content at 24 h postmortem alone accounted for a considerable portion of the variation in pork quality traits. Based on these results, the current study confirmed that the main factor influencing pork quality traits is the ultimate lactate content in muscle via postmortem glycolysis, and that levels of blood glucose and lactate at exsanguination and contents of muscle glycogen and lactate at postmortem can explain a large portion of the variation in pork quality even under the standard slaughter conditions.
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Affiliation(s)
- J H Choe
- Department of Food Bioscience and Technology, Korea University, Seoul 136-701, Korea
| | - M H Choi
- Department of Food Bioscience and Technology, Korea University, Seoul 136-701, Korea
| | - Y C Ryu
- College of Applied Life Sciences, Sustainable Agriculture Research Institute, Jeju National University, Jeju 690-756, Korea
| | - G W Go
- Department of Food and Nutrition, Kookmin University, Seoul 136-702, Korea
| | - Y M Choi
- Department of Animal Sciences and Biotechnology, KyungPook National University, Sangju 742-711, Korea
| | - S H Lee
- Department of Nutritional Science and Food Management, Ewha University, Seoul 120-750, Korea
| | - K S Lim
- Division of Biotechnology, Korea University, Seoul 136-701, Korea
| | - E A Lee
- Division of Biotechnology, Korea University, Seoul 136-701, Korea
| | - J H Kang
- Division of Biotechnology, Korea University, Seoul 136-701, Korea
| | - K C Hong
- Division of Biotechnology, Korea University, Seoul 136-701, Korea
| | - B C Kim
- Department of Food Bioscience and Technology, Korea University, Seoul 136-701, Korea
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Yoo KY, Kim SK, Kwon SS, Park SK, Yoon HJ, Lee KS, Hwang TJ, Choi YM, Lee SY. Life expectancy of Korean haemophiliacs, 1991-2012. Haemophilia 2015; 20:e356-8. [PMID: 24948408 DOI: 10.1111/hae.12475] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2014] [Indexed: 11/27/2022]
Affiliation(s)
- K Y Yoo
- Korea Hemophilia Foundation, Seoul, Korea
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Shin HJ, Choi YM, Kim HJ, Lee SJ, Yoon SH, Kim KH. Retroperitoneal hemorrhage from an unrecognized puncture of the lumbar right segmental artery during lumbar chemical sympathectomy: diagnosis and management. J Clin Anesth 2014; 26:671-5. [PMID: 25439405 DOI: 10.1016/j.jclinane.2014.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 06/25/2013] [Revised: 05/29/2014] [Accepted: 06/09/2014] [Indexed: 11/20/2022]
Abstract
Lumbar chemical sympathectomy has been performed using fluoroscopic guidance for needle positioning. An 84 year old woman with atherosclerosis obliterans was referred to the pain clinic for intractable cold allodynia of her right foot. A thermogram showed decreased temperature of both feet compared with temperatures above both ankles. The patient agreed to undergo lumbar chemical sympathectomy using fluoroscopy after being informed of the associated risks of nerve injury, hemorrhage, infection, transient back pain, and transient hypotension. During the procedure and three hours afterward, no abnormal signs or symptoms were found except an increase in right leg temperature. The patient was ambulatory after the procedure. However, one day after undergoing lumbar chemical sympathectomy, she visited our emergency department for abdominal discomfort and postural dizziness. Her blood pressure was 80/50 mmHg, and flank tenderness was noted. Retroperitoneal hemorrhage from the second right lumbar segmental artery was shown on computed tomography and angiography. Vital signs were stabilized immediately after embolization into the right lumbar segmental artery.
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Affiliation(s)
- Ho-Jin Shin
- Department of Anesthesia and Pain Medicine, School of Medicine, Pusan National University, Yangsan, 626-770, Korea
| | - Yun-Mi Choi
- Department of Anesthesia and Pain Medicine, School of Medicine, Pusan National University, Yangsan, 626-770, Korea
| | - Hye-Jin Kim
- Department of Anesthesia and Pain Medicine, School of Medicine, Pusan National University, Yangsan, 626-770, Korea
| | - Sun-Jae Lee
- Department of Anesthesia and Pain Medicine, School of Medicine, Pusan National University, Yangsan, 626-770, Korea
| | - Seok-Hyun Yoon
- Department of Anesthesia and Pain Medicine, School of Medicine, Pusan National University, Yangsan, 626-770, Korea
| | - Kyung-Hoon Kim
- Department of Anesthesia and Pain Medicine, School of Medicine, Pusan National University, Yangsan, 626-770, Korea.
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Cho AR, Kim HK, Kwon JY, Kim TK, Choi YM, Kim KH. The incorporation of platelet-rich plasma into calcium phosphate cement enhances bone regeneration in osteoporosis. Pain Physician 2014; 17:E737-E745. [PMID: 25415788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Polymethyl methacrylate (PMMA) bone cement is widely used for osteoplasty. However, previous studies have demonstrated the adverse effects of PMMA due to its excessive stiffness and heat production. Recently, calcium phosphate cement (CPC) that overcomes those negative effects has been successfully applied in osteoplasty. The potential problem of CPC is markedly less initial stiffness. It leads to progressive, repeated collapse in the treated vertebra before CPC has been replaced by new bone that would provide substantial improvement in compressive strength and stiffness. The activated platelets in platelet-rich plasma (PRP) release a high concentration of growth factors which play an important role in bone healing. OBJECTIVE To investigate whether PRP could accelerate the osteoconduction of CPC and enhance the bone strength of the treated vertebra in an animal model. STUDY DESIGN Controlled animal study. SETTING Laboratory animal study, METHODS Thirty-two female Sprague-Dawley rats were ovariectomized at 8 weeks of age. After 3 months, they were randomly divided into 4 groups and received cement augmentation in the fifth caudal spine with different filler materials; sham-operated rats (S), PMMA (P), CPC (C), and CPC + PRP (CP). Bone mineral density (BMD) and trabecular type-associated morphological parameters, including trabecular bone volume fraction and trabecular thickness in the augmented caudal spine, were evaluated by micro-computed tomography (mirco-CT) 2 weeks after the cementoplasty. Histological analysis was also performed to compare the bone regeneration. RESULTS The trabecular bone volume fraction in the CP group was significantly greater than those of all the other groups. Trabecular thickness was higher in the CP group than the S and P groups. This augmented trabecular structure in the CP group accordingly showed higher BMD. Histological evaluations showed significantly more bone regeneration in the CP group. LIMITATIONS There has been a concern that the effect of PRP would be dependent on the species, and might show different results in humans. Baseline values of micro-CT analysis were not measured, which could have provided exact evidence of the changes in trabecular micro-architecture parameters and cement resorption profiles. Finally, caudal vertebrae with filler materials used in biological study should have been compared by their mechanical properties using biomechanical evaluations for a more coherent study, which was not possible due to technical problems. CONCLUSIONS Incorporating PRP into CPC could accelerate osteoconduction in the augmented vertebra leading to improvement of trabecular bone microarchitecture and BMD in rats.
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Affiliation(s)
| | | | | | | | | | - Kyung-Hoon Kim
- Department of Anesthesia and Pain Medicine, School of Medicine, Pusan National University; Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
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Choi YM, Jung KC, Choe JH, Kim BC. Effects of muscle cortisol concentration on muscle fiber characteristics, pork quality, and sensory quality of cooked pork. Meat Sci 2012; 91:490-8. [PMID: 22498136 DOI: 10.1016/j.meatsci.2012.03.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Revised: 01/18/2012] [Accepted: 03/07/2012] [Indexed: 11/26/2022]
Abstract
The effect of muscle cortisol concentration on muscle fiber characteristics and technological and sensory quality of pork was investigated. With the exception of the percentage of type IIA fibers, muscle fiber characteristics were not associated to cortisol levels. However, muscle cortisol concentration was positively associated with muscle pH(24h) (r = 0.23, P<0.05) and negatively associated with drip loss (r = -0.49, P<0.001), lightness (r = -0.24, P<0.05), shear force (r = -0.25, P<0.05), and texture profile analysis-hardness (r = -0.35, P<0.01). Additionally, the water-holding capacity of meat samples was affected by cortisol levels, with lower cortisol concentrations associated with less tender samples. These results indicate that the concentration of cortisol in the muscle is related with meat quality as well as the sensory quality of cooked pork.
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Affiliation(s)
- Y M Choi
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
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Lee SH, Choe JH, Choi YM, Jung KC, Rhee MS, Hong KC, Lee SK, Ryu YC, Kim BC. The influence of pork quality traits and muscle fiber characteristics on the eating quality of pork from various breeds. Meat Sci 2011; 90:284-91. [PMID: 21840135 DOI: 10.1016/j.meatsci.2011.07.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 07/11/2011] [Accepted: 07/15/2011] [Indexed: 11/16/2022]
Abstract
The purpose of this study was to compare parameters associated with pork quality, muscle fiber, and eating quality among various breeds, and to examine if differences in eating quality were associated to pork quality and muscle fiber characteristics. For carcass and pork quality, although there were significant differences among breeds, the values of parameters in all pigs were assigned a normal quality class, a likely outcome of the similarity in the area percentage of type I and IIB fibers. For eating quality, pork loins from Berkshire pigs were more tender and full of pork flavor than Landrace and Yorkshire pigs. Except juiciness and mouth coating, over 20% of the variability in the eating quality parameters can be explained by pork quality traits and muscle fiber characteristics using multiple regression analysis. Furthermore, differences in muscle pH(24h), cooking loss, shear force, and NPPC marbling score could explain a large proportion of variation in eating quality parameters associated with the texture of pork.
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Affiliation(s)
- S H Lee
- Division of Food Bioscience and Technology, Korea University, Seongbuk-Gu, Seoul 136-701, South Korea
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Choi YM, Choe JH, Cho DK, Kim BC. Practical use of surimi-like material made from porcine longissimus dorsi muscle for the production of low-fat pork patties. Meat Sci 2011; 90:292-6. [PMID: 21843917 DOI: 10.1016/j.meatsci.2011.07.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 07/11/2011] [Accepted: 07/16/2011] [Indexed: 10/18/2022]
Abstract
This study evaluates the effect of replacing fat with surimi-like material (SLM) made from the porcine longissimus dorsi muscle on the physicochemical and sensory characteristics of pork patties. Pork patties were produced with different levels of fat and SLM using a commercial method. Pork patties produced with 20% SLM had the lowest fat content (1.76%, P<0.001), and had a higher cooking yield (87.41 vs. 78.57%, P<0.05) and less shrinkage (4.01 vs. 9.02%, P<0.001) than patties produced with 20% back-fat (control). Moreover, patties produced with SLM exhibited more acceptable organoleptic characteristics, including tenderness (P<0.01) and overall acceptability (P<0.001), than full-fat control patties. These results indicated that SLM cannot only be used as a fat replacer, but that it also improves the physicochemical and sensory characteristics of low-fat pork patties.
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Affiliation(s)
- Y M Choi
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, 5-1 Anam-dong, Sungbuk-gu, Seoul 136-713, South Korea
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Kim JJ, Choi YM, Hwang SS, Yoon SH, Lee GH, Chae SJ, Hwang KR, Moon SY. Association of the interferon-γ gene (CA)n repeat polymorphism with endometriosis. BJOG 2011; 118:1061-6. [PMID: 21477169 DOI: 10.1111/j.1471-0528.2011.02963.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To investigate whether the interferon-γ (IFN-γ) gene (CA)(n) repeat polymorphism is associated with susceptibility to endometriosis. DESIGN Case-control study. SETTING University Department of Obstetrics and Gynaecology. POPULATION Women with (n = 622) and without (n = 442) endometriosis. METHODS Genotyping was performed by fluorescent polymerase chain reaction (PCR) and gene-scan analysis. MAIN OUTCOME MEASURES Genotype distribution and allele frequency of the dinucleotide (CA)(n) repeat polymorphism in the IFN-γ gene. RESULTS Seven alleles (12-18 repeats) of the IFN-γ gene (CA)(n) repeat polymorphism were found. In both patients with endometriosis and controls the most common allele was composed of 13 repeats, followed by an allele of 15 repeats, and then by an allele of 12 repeats. Patients with endometriosis had a significantly higher incidence of genotypes with alleles composed of fewer repeats (12-13 repeats), compared with the controls (92.0 versus 84.4%, respectively, P < 001). CONCLUSIONS Our results suggest that the (CA)(n) repeat polymorphism in the IFN-γ gene may be associated with a risk of endometriosis in the South Korean population.
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Affiliation(s)
- J J Kim
- Department of Obstetrics and Gynaecology, Seoul National University College of Medicine, Seoul, South Korea
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Jeong DW, Choi YM, Lee SH, Choe JH, Hong KC, Park HC, Kim BC. Correlations of trained panel sensory values of cooked pork with fatty acid composition, muscle fiber type, and pork quality characteristics in Berkshire pigs. Meat Sci 2010; 86:607-15. [PMID: 20659787 DOI: 10.1016/j.meatsci.2010.04.011] [Citation(s) in RCA: 42] [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: 09/02/2009] [Revised: 04/15/2010] [Accepted: 04/20/2010] [Indexed: 11/29/2022]
Abstract
The objective was to examine the relationship of trained panel sensory scores of cooked pork with fatty acid composition, muscle fiber type, and meat quality characteristics from Berkshire pigs. No or few associations were found between the panel sensory scores of cooked meat, especially tenderness attributes, and fatty acid composition; however, intramuscular fat content positively correlated with off-flavor score (r=0.31). On the other hand, the morphological characteristics of muscle fibers were correlated with panel sensory values. Muscles with smaller cross-sectional area and higher density of fibers were more closely associated with softer, more tender panel scores and a lower number of chews than muscles with larger fiber area and lower density of fibers. The water holding capacity test of filter-paper fluid uptake was moderately correlated with panel scores of softness (r=0.33), initial tenderness (r=0.38), chewiness (r=0.40), juiciness (r=-0.27), flavor intensity (r=-0.23), and off-flavor (r=0.30). Panel sensory values of Berkshire pig meat was moderately related to postmortem meat quality, especially water holding capacity. A more thorough understanding of the relationships between fatty acid composition and muscle fiber type with palatability is needed.
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Affiliation(s)
- D W Jeong
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, 5-1 Anam-dong, Sungbuk-gu, Seoul 136-713, South Korea
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Kim SM, Kim SH, Lee JR, Jee BC, Ku SY, Suh CS, Choi YM, Kim JG, Moon SY. The effects of hormone therapy on metabolic risk factors in postmenopausal Korean women. Climacteric 2010; 14:66-74. [PMID: 20649504 DOI: 10.3109/13697137.2010.498593] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE We sought to assess the prevalence of metabolic syndrome (MetS) among Korean postmenopausal women and to investigate the effect of hormone therapy status and reproductive characteristics on body composition and MetS risk factors. STUDY DESIGN We performed a cross-sectional study involving a cohort of 2005 postmenopausal Korean women. We defined MetS using the modified National Cholesterol Education Program (NCEP) criteria proposed by the American Heart Association/National Heart, Lung, and Blood Institute guidelines. The criteria for abdominal obesity were adopted from the cut-offs suggested by the Korean Society for the Study of Obesity. Participants with three or more of the following conditions were classified as having MetS: waist circumference ≥ 85 cm; blood pressure ≥ 130/85 mmHg; fasting plasma triglycerides ≥ 150 mg/dl; high density lipoprotein cholesterol < 50 mg/dl; glucose ≥ 100 mg/dl and/or receiving treatment for their condition. RESULTS The prevalence of MetS was 22.1% in the study population and increased with age. After adjusting for age and related reproductive characteristics, it was found that ever-use of hormone therapy (prior or current) was associated with decreased risk of postmenopausal MetS. Among individual risk factors for MetS, current hormone therapy seemed to be associated with decreased prevalence of abdominal obesity and better glucose metabolism and prior use of hormone therapy were associated with lower risk of abdominal obesity and high blood pressure. CONCLUSION Postmenopausal hormone therapy is associated with decreased risk of MetS in postmenopausal Korean women.
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Affiliation(s)
- S M Kim
- Department of Obstetrics and Gynecology, College of Medicine, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul, Korea
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Shin DH, Chai JY, Park EA, Lee W, Lee H, Lee JS, Choi YM, Koh BJ, Park JB, Oh CS, Bok GD, Kim WL, Lee E, Lee EJ, Seo M. Finding ancient parasite larvae in a sample from a male living in late 17th century Korea. J Parasitol 2010; 95:768-71. [PMID: 19071966 DOI: 10.1645/ge-1763.1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2008] [Accepted: 11/19/2008] [Indexed: 11/10/2022] Open
Abstract
Parasitological examination of samples from tombs of the Korean Joseon Dynasty (1392-1910) could be helpful to researchers in understanding parasitic infection prevalence in pre-industrial Korean society. Whereas most of our previous parasitological studies revealed the presence of ancient parasite eggs in coprolites of Korean mummies, a sample from a man living in late 17th century Korea proved to be relatively unique in possessing what appeared to be several species of parasite larvae. The larvae identified included Strongyloides stercoralis and Trichostrongylus spp., along with eggs of Ascaris lumbricoides, Trichuris trichiura, and Paragonimus westermani. Since ancient parasite larvae retain enough morphology to make proper species identification possible, even after long burial times, the examination of parasite larvae within ancient samples will be conducted more carefully in our future work.
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Affiliation(s)
- D H Shin
- Institute of Forensic Medicine, Seoul National University, Seoul 110-799, South Korea
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31
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Jung WY, Choi YM, Rhee MS. Potential use of supercritical carbon dioxide to decontaminate Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella typhimurium in alfalfa sprouted seeds. Int J Food Microbiol 2009; 136:66-70. [PMID: 19733412 DOI: 10.1016/j.ijfoodmicro.2009.08.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Revised: 07/27/2009] [Accepted: 08/09/2009] [Indexed: 11/17/2022]
Abstract
We sought to develop a method of decontaminating alfalfa sprouts of Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella typhimurium without altering the seed germination capability using supercritical carbon dioxide (SC-CO(2)). Samples were treated with SC-CO(2) at 10, 15, or 20 MPa and temperatures of 35, 40, or 45 degrees C for 5, 10, or 15 min. The germination percentage was measured after three days of germination. Generally, treating seeds with SC-CO(2) at higher pressures, temperatures, or for longer treatment times resulted in greater microbial reductions than treatments at lower pressures, temperatures, or for shorter treatment times. SC-CO(2) treatment clearly reduced the microorganism levels in alfalfa seeds; in particular, treatment at 20 MPa and 45 degrees C for 15 min reduced levels of the three pathogens by >7.0 log colony forming units (CFU)/g. However, SC-CO(2) treatment at a high pressure and high temperature, especially treatment at 20 MPa and 40 or 45 degrees C, impaired the seed germination capability in some cases. Without impairing the germination capability, the maximum reduction level of E. coli O157:H7 was 3.51 CFU/g with SC-CO(2) treatment at 15 MPa and 35 degrees C for 10 min. Maximum reductions of L. monocytogenes and S. typhimurium were 2.65 and 2.48 log CFU/g, respectively, with treatment at 10 MPa and 45 degrees C for 5 min. Therefore, our results indicate that SC-CO(2) treatment can be used to effectively improve alfalfa seed safety.
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Affiliation(s)
- W Y Jung
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
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Nam YJ, Choi YM, Lee SH, Choe JH, Jeong DW, Kim YY, Kim BC. Sensory evaluations of porcine longissimus dorsi muscle: Relationships with postmortem meat quality traits and muscle fiber characteristics. Meat Sci 2009; 83:731-6. [PMID: 20416630 DOI: 10.1016/j.meatsci.2009.08.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2008] [Revised: 02/23/2009] [Accepted: 08/10/2009] [Indexed: 11/19/2022]
Abstract
The objective of this study was to investigate sensory evaluations and their relationships with meat quality measurements and histochemical characteristics in both fresh and cooked pork. Based on the results, postmortem meat quality traits were closely related to almost all the evaluated sensory attributes. With regard to histochemical characteristics, muscle fiber area was related to both fresh- (r=0.18, P<0.05) and cooked-meat color (r=-0.24, P<0.01) as well as abnormal flavor intensity (r=0.25, P<0.01), and muscle fiber composition was associated with fresh pork color and taste acceptability after cooking. There were no significant relationships (P>0.05) between type IIa muscle fiber content and the evaluated sensory attributes; however, good meat sensory quality was partially explained by the percentage of type I fiber.
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Affiliation(s)
- Y J Nam
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, South Korea
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33
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Choe JH, Choi YM, Lee SH, Nam YJ, Jung YC, Park HC, Kim YY, Kim BC. The relation of blood glucose level to muscle fiber characteristics and pork quality traits. Meat Sci 2009; 83:62-7. [PMID: 20416649 DOI: 10.1016/j.meatsci.2009.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2008] [Revised: 03/04/2009] [Accepted: 03/30/2009] [Indexed: 10/20/2022]
Abstract
The purpose of this study was to examine the relationships between blood glucose level, muscle fiber characteristics, and pork quality. Muscle samples were classified into three groups based on blood glucose level measured at slaughter. Pigs with higher area percentages of fiber type IIB showed higher blood glucose levels compared to pigs with lower area percentages of fiber type IIB. The high blood glucose level group presented lower pH values at 45min and 24h postmortem, and also had higher L(∗) values and reduced water holding capacity. In addition, blood glucose level had a negative relationship with pH(45min) and the solubility of sarcoplasmic and myofibrillar proteins, whereas it had a positive relationship with drip loss and filter-paper fluid uptake. In conclusion, blood glucose level was related to muscle fiber area composition and could partially indicate ultimate pork quality.
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Affiliation(s)
- J H Choe
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, 5-1 Anam-dong, Sungbuk-gu, Seoul 136-713, South Korea
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34
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Choi YM, Jang JY, Jang M, Kim SH, Kang YK, Cho H, Chung S, Park MK. Modulation of firing activity by ATP in dopamine neurons of the rat substantia nigra pars compacta. Neuroscience 2009; 160:587-95. [PMID: 19272429 DOI: 10.1016/j.neuroscience.2009.02.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2008] [Revised: 02/12/2009] [Accepted: 02/27/2009] [Indexed: 11/26/2022]
Abstract
ATP acts as a neurotransmitter or co-neurotransmitter in many areas of the CNS and peripheral nervous systems; however, little is known about the expression and functional role of purinoceptors (P2) in midbrain dopaminergic neurons. Therefore, we investigated P2X receptor expression and regulation of spontaneous firing activity in dopaminergic neurons of the substantia nigra pars compacta (SNc) in rats using patch-clamp and Ca(2+)-imaging techniques. In most neurons, application of ATP (1 microM-1 mM) increased firing rate dose-dependently (EC(50)=1.26+/-0.26 microM, n=45). When the P2-receptor agonists such as 2-methylthio-adenosine 5'-triphosphate (2-MeSATP) or ATPgammaS were applied or pressure-applied to the neuron, the firing activity increased together with a rise in cytosolic Ca(2+) concentration ([Ca(2+)]c), but application of beta,gamma-methylene ATP (P2X(1, 3) agonist) or methylthio-adenosine 5'-diphosphate (P2Y(1) agonist) had no effect. In many neurons, the effect of ATP was abolished by the application of the P2-receptor antagonists, suramin or pyridoxal-phosphate-6-azophenyl-2',4'-disulfonic acid (PPADS). When ATP was applied in a Ca(2+)-free solution, there was no detectable change in [Ca(2+)]c, suggesting that ATP does not release Ca(2+) from intracellular stores. In the single-cell reverse transcription polymerase chain reaction (RT-PCR), we found that 65% of dopaminergic neurons expressed mRNAs for P2X receptors; positive amplifications of P2X(6) (57.1%), P2X(2/6) (25.0%), and P2X(4) mRNA (17.9%), respectively. From the above results, we could conclude that ATP modulates firing activities in the rat SNc dopaminergic neurons, possibly via P2X(2), P2X(2/6), and/or P2X(4) receptors.
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Affiliation(s)
- Y M Choi
- Department of Physiology, Sungkyunkwan University, School of Medicine and Center for Molecular Medicine, Samsung Biomedical Research Institute, Suwon, Korea
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Choe JH, Choi YM, Lee SH, Shin HG, Ryu YC, Hong KC, Kim BC. The relation between glycogen, lactate content and muscle fiber type composition, and their influence on postmortem glycolytic rate and pork quality. Meat Sci 2007; 80:355-62. [PMID: 22063340 DOI: 10.1016/j.meatsci.2007.12.019] [Citation(s) in RCA: 129] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Revised: 12/17/2007] [Accepted: 12/19/2007] [Indexed: 11/16/2022]
Abstract
This study examined the relation between glycogen, lactate content and muscle fiber type composition, and evaluated their influence on postmortem glycolytic rate and meat quality. Muscle samples were classified based on their glycogen and lactate content at 45min postmortem. Muscles with low glycogen and high lactate levels showed low muscle pH(45min) and high R-values. However, muscles with low glycogen and lactate levels showed normal rates of postmortem glycolysis and normal meat quality. On the other hand, muscles with high glycogen and lactate content showed rapid postmortem glycolysis, paler surface color, higher drip loss, and higher extents of protein denaturation than muscles with high glycogen and low lactate content. These results may be partially explained by muscle fiber type composition. Muscles with low glycogen and lactate content at early postmortem are composed of significantly higher fiber type I and lower fiber type IIB as compared to muscles with high glycogen and lactate content.
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Affiliation(s)
- J H Choe
- Division of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, 5-1 Anam-dong, Sungbuk-gu, Seoul 136-713, South Korea
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Abstract
BACKGROUND Topical tacrolimus (FK506) is a potential therapeutic option for vitiligo management. Despite its clinical efficacy, the underlying mechanism of how topical tacrolimus induces repigmentation in vitiligo has scarcely been investigated. OBJECTIVES To investigate the direct effects of FK506 on pigmentation and migration of human melanocytes. METHODS Cell proliferation was measured using a Coulter counter. The effects on pigmentation were investigated by measuring melanin contents, tyrosinase activity and tyrosinase expression. To determine the effects of FK506 on cell migration, we performed scratch assays and Boyden chamber assays. RESULTS FK506 treatment increased melanin contents, although there was an inhibitory effect on growth of melanocytes. The increase of pigmentation was due to the result of the stimulatory action of FK506 on tyrosinase activity and its expression, which eventually led to melanin biosynthesis. Furthermore, cell migration was enhanced by FK506 treatment. CONCLUSIONS These findings provide in vitro evidence demonstrating direct effects of FK506 on pigmentation and melanocyte migration and may provide a possible mechanism for the effect of tacrolimus in vitiligo.
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Affiliation(s)
- H Y Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon 443-721, Korea.
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Kang HJ, Choi YM, Chae SW, Woo JS, Hwang SJ, Lee HM. Polymorphism of the CD14 gene in perennial allergic rhinitis. Int J Pediatr Otorhinolaryngol 2006; 70:2081-5. [PMID: 16950521 DOI: 10.1016/j.ijporl.2006.07.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Revised: 07/26/2006] [Accepted: 07/27/2006] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Allergic diseases have strong genetic backgrounds. Recently, a C-T polymorphism in the promoter region of CD14 has been associated with phenotypes of atopy in some populations. The aim of this study was to investigate the association of CD14/-159 polymorphism with total serum IgE levels and number of positive skin prick tests in Korean population with perennial allergic rhinitis. STUDY DESIGN Prospective study. METHODS Deoxyribonucleic acid obtained from 164 children with perennial allergic rhinitis and 160 healthy controls were typed for the promoter polymorphism of CD14 gene at position -159 by restriction fragment length polymorphism analysis. Genotype frequencies, total serum IgE levels, and the number of positive skin tests for each genotype were compared. RESULTS There were no significant differences in the CD14/-159 genotype frequencies between the allergic rhinitis group and the control group. In the skin prick test-positive population, the CC homozygotes were associated with higher serum total IgE levels and greater number of positive skin tests compared with subjects with CT and TT alleles (P<0.05). CONCLUSIONS The results from the present study suggest that CD14/-159 polymorphism may play a role in the development of perennial allergic rhinitis in Korean children.
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Affiliation(s)
- Hee Joon Kang
- Department of Otorhinolaryngology-Head and Neck Surgery, Guro Hospital, Korea University College of Medicine, 80 Guro-dong, Guro-gu, Seoul 152-703, Republic of Korea
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Kim CM, Oh YJ, Cho SH, Chung DJ, Hwang JY, Park KH, Cho DJ, Choi YM, Lee BS. Increased telomerase activity and human telomerase reverse transcriptase mRNA expression in the endometrium of patients with endometriosis. Hum Reprod 2006; 22:843-9. [PMID: 17077107 DOI: 10.1093/humrep/del425] [Citation(s) in RCA: 32] [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: 11/12/2022] Open
Abstract
BACKGROUND Endometriosis is considered a frequent, benign disease with the ability to undergo neoplastic processes. The aim of this study was to evaluate the limitless replication potential of the endometrium in patients with endometriosis by examining human telomerase reverse transcriptase (hTERT) mRNA expression and telomerase activity. METHODS Endometrium samples from 30 endometriosis patients and 30 patients without endometriosis were obtained via endometrial biopsy. The expression of hTERT mRNA was determined by real-time RT-PCR assay, and telomerase activity was measured by telomerase repeat amplification protocol (TRAP) assay. RESULTS The mean normalized hTERT (N hTERT) mRNA level was significantly higher in the endometriosis than in the control group (P = 0.013). The mean hTERT mRNA levels during the proliferative phase and during the secretory phase were higher in the endometriosis group than in the control group, although the difference was only significant for the secretory phase (P = 0.036). We found a prominent difference in endometrial telomerase activity between moderate-to-severe endometriosis and the control group (P = 0.048). The levels of hTERT mRNA and telomerase activity increased as the disease became more severe (P = 0.038, P = 0.016). CONCLUSIONS This study showed the overexpression of hTERT mRNA and telomerase activity in the endometrium of endometriosis patients. These finding suggest that replication potential of endometrial cells may have an important role in the pathogenesis of endometriosis.
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Affiliation(s)
- C M Kim
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Yongdong Severance Hospital, Seoul, Korea
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Choi YM, Abernathy H, Chen HT, Lin MC, Liu M. Characterization of O2–CeO2 Interactions Using In Situ Raman Spectroscopy and First-Principle Calculations. Chemphyschem 2006; 7:1957-63. [PMID: 16900562 DOI: 10.1002/cphc.200600190] [Citation(s) in RCA: 164] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Interactions between O(2) and CeO(2) are examined experimentally using in situ Raman spectroscopy and theoretically using density-functional slab-model calculations. Two distinct oxygen bands appear at 825 and 1131 cm(-1), corresponding to peroxo- and superoxo-like species, respectively, when partially reduced CeO(2) is exposed to 10 % O(2). Periodic density-functional theory (DFT) calculations aid the interpretation of spectroscopic observations and provide energetic and geometric information for the dioxygen species adsorbed on CeO(2). The O(2) adsorption energies on unreduced CeO(2) surfaces are endothermic (0.91<DeltaE(ads)<0.98 eV), while those on reduced surfaces are exothermic (-4. 0<DeltaE(ads)<-0.9 eV), depending on other relevant surface processes such as chemisorption and diffusion into the bulk. Partial reduction of surface Ce(4+) to Ce(3+) (together with formation of oxygen vacancies) alters geometrical parameters and, accordingly, leads to a shift in the vibrational frequencies of adsorbed oxygen species compared to those on unreduced CeO(2). Moreover, the location of oxygen vacancies affects the formation and subsequent dissociation of oxygen species on the surfaces. DFT predictions of the energetics support the experimental observation that the reduced surfaces are energetically more favorable than the unreduced surfaces for oxygen adsorption and reduction.
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Affiliation(s)
- Y M Choi
- Center for Innovative Fuel Cell and Battery Technologies School of Materials Science and Engineering Georgia Institute of Technology, Atlanta, GA 30332, USA
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Lee EB, Lee YJ, Shin DH, Choi YM, Park MH, Pandey JP, Song YW. Immunoglobulin GM and KM genotypes in Korean patients with systemic lupus erythematosus. Rheumatol Int 2006; 27:219-24. [PMID: 16944158 DOI: 10.1007/s00296-006-0192-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2005] [Accepted: 08/01/2006] [Indexed: 10/24/2022]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by immune complex deposition. We genotyped immunoglobulin allotypes of G1M (f,z), G2M (n+,n-), G3M (b,g) and KM (1,3) in 142 Korean patients with SLE and 200 healthy controls to investigate the role of the allotypes in SLE. The allele frequency of G1M (z) was significantly higher in patients with SLE as compared to the healthy controls (94.6% vs. 84.3%, corrected P = 0.0004, OR 3.30, 95% CI 1.71-6.88). The frequency of G2M (n-) allele was also higher in patients with SLE (95.3% vs. 88.3%, corrected P = 0.008, OR = 2.71, 95% CI 1.38-5.72). Distribution of the tested allele frequencies for G3M and KM were not different between the patients and controls. In the respect of antibody production, there was increased genotype frequency of G1M (z/z) in anti-Sm(-) SLE (P = 0.023 vs. control, P = 0.042 vs. anti-Sm (+) SLE). In conclusion, particular genotypes at G1M (f,z) and G2M (n+,n-) loci are significantly associated with SLE. These immunoglobulin genes may contribute to the etiology of SLE and production of autoantibodies.
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Affiliation(s)
- E B Lee
- Department of Internal Medicine, Seoul National University College of Medicine, 28 Yungon-dong, Chongno-gu, Seoul, 110-744, South Korea
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Abstract
The Lactobacillus ferment used in this study was composed of Lactobacillus fermented wheat, barley and kefir grains. Fermentation increased the CFU of lactic acid bacteria with a reduction in pH value and in the contents of dietary fi ber and glucan. Male SD rats were fed a high fat diet with or without 10% Lactobacillus ferment for 4 weeks. In the Lactic-F group (group fed high-fat diet with Lactobacillus ferment) there was a significantly reduced increase of body weight compared with the HF-control (group fed high-fat diet without Lactobacillus ferment). The food efficiency ratio (FER) tended to be decreased in the Lactic-F group, but there was no significant difference between the Lactic-F and HF-control groups. The perirenal and the epididymal fat weights in the normal dietary group (control) and in the Lactic-F group were significantly lower than those of the HF-control. The serum HDL-cholesterol and the total cholesterol in the Lactic-F group were similar to the control group, and were significantly different from those of the HF-control. These results indicated that the Lactobacillus ferment is a functional material having antiobesity effects, with use as a supplement in functional, health-favoring food.
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Affiliation(s)
- Y M Choi
- Department of Food Service and Industry, Shinsung College, Chungnam 343-860, Korea
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Affiliation(s)
- Y M Choi
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
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Affiliation(s)
- R Bhidayasiri
- Department of Neurology, UCLA Medical Center, UCLA School of Medicine, California, USA.
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Choi YM, Park J, Lin MC. Kinetics and Mechanism of the C6H5+ CH3CHO Reaction: Experimental Measurement and Theoretical Prediction of the Reactivity toward Four Molecular Sites. Chemphyschem 2004; 5:661-8. [PMID: 15179718 DOI: 10.1002/cphc.200301201] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The kinetics and mechanism of the reaction of C6H5 with CH3CHO have been investigated experimentally and theoretically. The total rate constant for the reaction has been measured by means of the cavity ring-down spectrometry (CRDS) in the temperature range 299-501 K at pressures covering 20-75 Torr. The overall bimolecular rate constant can be represented by the expression k = (2.8 +/- 0.2) x 10(11) exp[-(700 +/- 30)/T] cm3 mol-1 s-1, which is slightly faster than for the analogous C6H5 + CH2O reaction determined with the same method in the same temperature range. The reaction mechanism for the C6H5 + CH3CHO reaction was also explored with quantum-chemical calculations at various hybrid density functional theories (DFTs) and using ab initio high-level composite methods. The theories predict that the reaction may occur by two hydrogen-abstraction and two addition channels with the aldehydic hydrogen-abstraction reaction being dominant. The rate constant calculated by the transition state theory for the aldehydic hydrogen-abstraction reaction is in good agreement with the experimental result after a very small adjustment of the predicted reaction barrier (+0.3 kcal mol-1). Contributions from other product channels are negligible under our experimental conditions. For combustion applications, we have calculated the rate constants for key product channels in the temperature range of 298-2500 K under atmospheric-pressure conditions; they can be represented by the following expressions in units of cm 3mol-1 s-1: k1,cho = 8.8 x 10(3)T2.6 exp(-90/T), k2,ch3 = 6.0 x 10(1)T3.3 exp(-950/T), k3a(C6H5COCH3 + H) = 4.2 x 10(5)T0.6 exp(-410/T) and k3b(C6H5CHO + CH3) = 6.6 x 10(9)T-0.5 exp(-310/T).
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Affiliation(s)
- Y M Choi
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, USA
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Choi YM, Lin MC. Kinetics and mechanisms for the reactions of phenyl radical with ketene and its deuterated isotopomer: an experimental and theoretical study. Chemphyschem 2004; 5:225-32. [PMID: 15038283 DOI: 10.1002/cphc.200300919] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Kinetics and mechanism for the reaction of phenyl radical (C6H5) with ketene (H2C beta=C alpha=O) were studied by the cavity ring-down spectrometric (CRDS) technique and hybrid DFT and ab initio molecular orbital calculations. The C6H5 transition at 504.8 nm was used to detect the consumption of the phenyl radical in the reaction. The absolute overall rate constants measured, including those for the reaction with CD2CO, can be expressed by the Arrhenius equation k = (5.9 +/- 1.8) x 10(11) exp[-(1160 +/- 100)/T] cm3 mol-1 s-1 over a temperature range of 301-474 K. The absence of a kinetic isotope effect suggests that direct hydrogen abstraction forming benzene and ketenyl radical is kinetically less favorable, in good agreement with the results of quantum chemical calculations at the G2MS//B3LYP6-31G(d) level of theory for all accessible product channels, including the above abstraction and additions to the C alpha, C beta, and O sites. For application to combustion, the rate constants were extrapolated over the temperature range of 298-2500 K under atmospheric pressure by using the predicted transition-state parameters and the adjusted entrance reaction barriers E alpha = E beta = 1.2 kcal mol-1; they can be represented by the following expression in units of cm3 mol-1 s-1: k alpha = 6.2 x 10(19)T-23 exp[-7590/T] and k beta = 3.2 x 10(4)T2.4 exp[-246/T].
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Affiliation(s)
- Y M Choi
- Department of Chemistry, Emory University, 1515 Pierce Drive, Atlanta, Georgia 30322, USA
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Abstract
The pharmacological effects were investigated of fermented red pepper (HF-S), which consisted of 14.7% carbohydrate, 1.5% lipid, 4.9% protein, 0.3% ash, 78.2% moisture content, with 0.15% capsaicin and 0.06% dihydrocapsaicin. Oral administration of 0.25 mL HF-S for 3 weeks produced significant changes of the perirenal fat pad weight compared with the HF-control group, suggesting a suppressive effect on lipid accumulation and a significant decrease in the risk of arteriosclerosis. The HF-S (0.25 mL) group also showed a lower plasma TG, TC level and atherogenic index than that of the HF-control. In addition, the HF-S (0.25 mL) group showed a marked increase in the production of glutathione, which is the major endogenous antioxidant, and a decrease in the production of lipid peroxide as the product of chemical damage by oxygen free radicals. It is assumed that the effect of HF-S might relate to high glutathione production on the suppression of lipid peroxidation. HF-S stimulated not only the proliferation of macrophages (as high as the positive control, LPS at 1000 microg/mL) but also mitogenic activity (1.2-fold of LPS at 100 microg/mL).
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Affiliation(s)
- Y M Choi
- Department of Food Service and Industry, Shinsung College, Chungnam 343-860, Korea
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Abstract
The purpose of this study was to assess the antiobesity effect of the yeast hydrolysate (DNF) on the body weight, body fat and plasma lipids levels of high-fat fed rats. The weight gain of the HF (high fat diet) (162.58 +/- 6.68 g) was significantly (p < 0.05) greater than that of DNF-1, DNF-2, (high fat diet with DNF of 0.5 and 1.0 g/kg body weight, respectively) and control groups (143.19 +/- 7.33 g, 139.20 +/- 8.36 g, 130.23 +/- 8.02 g, respectively). The wet weight of the epididymal fat and the perirenal fat pads of the DNF-1, DNF-2 and control groups were reduced significantly (p < 0.05). A significant (p < 0.05) increase of HDL-cholesterol level of the DNF-2 and control groups was observed. However, there was no significant difference between DNF-1 and DNF-2. It was also found that the triacylglycerol (TG) levels decreased significantly (p < 0.05) in the DNF-2 group from that of the HF, but there was no significant (p < 0.05) difference between DNF-1 and DNF-2.
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Affiliation(s)
- K M Kim
- Department of Food and Nutrition, College of Health Sciences, Korea University, 1 Jeongneung-dong, Sungbuk-ku, Seoul 136-703, Korea
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Chung KY, Sung SH, Kim YS, Choi KB, Choi YM. Short-term preservation of liver with Euro-Collins or UW solution in canine partial liver autotransplantation. Transplant Proc 2003; 35:120-1. [PMID: 12591332 DOI: 10.1016/s0041-1345(02)03972-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- K-Y Chung
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
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Yoon HY, Yoon CS, Jeong SW, Kim TJ, Park SY, Chung BH, Choi YM, Lee WC. Prevalence and relative risk of canine dirofilariosis among dogs in Seoul, South Korea. Vet Rec 2002; 151:576-7. [PMID: 12452358 DOI: 10.1136/vr.151.19.576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- H Y Yoon
- College of Veterinary Medicine of Konkuk University, Seoul, Korea
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Kunishima S, Matsushita T, Kojima T, Amemiya N, Choi YM, Hosaka N, Inoue M, Jung Y, Mamiya S, Matsumoto K, Miyajima Y, Zhang G, Ruan C, Saito K, Song KS, Yoon HJ, Kamiya T, Saito H. Identification of six novel MYH9 mutations and genotype-phenotype relationships in autosomal dominant macrothrombocytopenia with leukocyte inclusions. J Hum Genet 2002; 46:722-9. [PMID: 11776386 DOI: 10.1007/s100380170007] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The autosomal dominant macrothrombocytopenia with leukocyte inclusions, May-Hegglin anomaly (MHA), Sebastian syndrome (SBS), and Fechtner syndrome (FTNS), are rare platelet disorders characterized by a triad of giant platelets, thrombocytopenia, and characteristic Döhle body-like leukocyte inclusions. The locus for these disorders was previously mapped on chromosome 22q12.3-q13.2 and the disease gene was recently identified as MYH9, the gene encoding the nonmuscle myosin heavy chain-A. To elucidate the spectrum of MYH9 mutations responsible for the disorders and to investigate genotypephenotype correlation, we examined MYH9 mutations in an additional 11 families and 3 sporadic patients with the disorders from Japan. Korea, and China. All 14 patients had heterozygous MYH9 mutations, including three known mutations and six novel mutations (three missense and three deletion mutations). Two cases had Alport manifestations including deafness, nephritis, and cataracts and had R1165C and E1841K mutations, respectively. However, taken together with three previous reports, including ours, the data do not show clear phenotype-genotype relationships. Thus, MHA, SBS, and FTNS appear to represent a class of allelic disorders with variable phenotypic diversity.
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Affiliation(s)
- S Kunishima
- First Department of Internal Medicine, Nagoya University School of Medicine, Japan
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