76
|
Kim SC, Lee KH, Choi HY, Noble J, Lee K, Jeon HJ. On-scene factors that predict severe injury of patients involved in frontal crashes of passenger cars. Eur J Trauma Emerg Surg 2016; 43:663-670. [PMID: 27469515 DOI: 10.1007/s00068-016-0714-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 07/19/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE We sought to determine on-scene factors that predict severe injury to the occupants of passenger cars involved in frontal crashes. METHODS From January 2011 to December 2014, we collected data from patients who were taken to two emergency centres following a frontal motor vehicle crash. Binomial logistic regression was used to model the effects of occupant characteristics (sex, age, body mass index), vehicle damage (according to the collision deformation classification code), and safety devices on severe injuries (injury severity score >15). RESULTS Of 344 subjects, 75 (21.8 %) had severe injuries. Sex, seat belt status, extent of vertical crash, intrusion, and deformation extent (DE) were significantly different between severe and non-severe injuries. After adjusting for confounders, non-use of seat belt tripled the odds of severe injury [odds ratio (OR) 2.7, 95 % confidence interval (CI) 1.461-5.105]. DE ≥4 and intrusion increased the risk of severe injury (OR 2.4, 95 % CI 1.120-5.204 and OR 5.2, 95 % CI 2.525-10.780, respectively). A combination model to predict severe injury using intrusion, seat belt use, and DE ≥4 demonstrated 56.0 % sensitivity, 88.9 % specificity, and 58.4 % positive predictive value (AUC = 0.781, 95 % CI 0.734-0.824). CONCLUSIONS For passenger cars involved in a frontal crash, intrusion, unbelted status, and DE ≥4 are good predictors of severe injury. Sequential criteria using vehicle DE, seat belt use, and intrusion can be used by first responders to triage patients involved in a frontal collision.
Collapse
|
77
|
Park JW, Lee KH, Lee JI. Osteoid osteoma of the distal pole of the scaphoid mimicking flexor carpi radialis tendinitis. J Hand Surg Eur Vol 2016; 41:556-7. [PMID: 25074841 DOI: 10.1177/1753193414545040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
78
|
Wang YB, Du W, Fu AK, Zhang XP, Huang Y, Lee KH, Yu K, Li WF, Li YL. Intestinal microbiota and oral administration of Enterococcus faecium associated with the growth performance of new-born piglets. Benef Microbes 2016; 7:529-38. [PMID: 27089950 DOI: 10.3920/bm2015.0099] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The oral administration of Enterococcus faecium EF1 to new-born suckling and weaning piglets along with their growth performances and intestinal microbiota was investigated in this study. Twenty-four new-born piglets were initially divided into 2 groups. The probiotics group received 2 ml of 10% sterilised skimmed milk by oral gavage supplemented with 6×10(8) cfu/ml viable E. faecium EF1 at the first, the third and the fifth day after birth, while the control group received 2 ml of 10% sterilised skimmed milk without probiotics at the same time. Results showed that oral administration of E. faecium EF1 was associated with a remarkable increase on the body weight of piglets for both suckling and weaning periods, by 30.73% (P<0.01) and 320.84% (P<0.01), and also decreased the diarrhoea rate, by 43.21% (P<0.05) and 71.42% (P<0.05), respectively. In addition, 454-pyrosequencing analysis revealed that there was no significant difference in the intestinal microbial diversity of the suckling piglets between the two groups; nevertheless, when compared to the control group, the relative abundance of Firmicutes in the probiotics group was substantially augmented, while the relative abundance of Proteobacteria, Bacteroidetes and Fusobacteria diminished. However, results indicated that oral administration of E. faecium EF1 did not have any influence on the relative abundance of Firmicutes in weaning piglets rather than increasing the relative abundance of Bacteroidetes and decreasing the relative abundance of Proteobacteria. Furthermore, at the level of the Firmicutes phylum, the relative abundance of Lactobacillales in the probiotic group increased significantly. These findings suggest that oral administration of E. faecium EF1 to new-born piglets could improve the growth performance and intestinal microbiota of piglets for both suckling and weaning periods.
Collapse
|
79
|
Choi YS, Park SG, Song EK, Cho SH, Park MR, Park KU, Lee KH, Song IC, Lee HJ, Jo DY, Kim S, Yun HJ. Comparison of the therapeutic effects of total laryngectomy and a larynx-preservation approach in patients with T4a laryngeal cancer and thyroid cartilage invasion: A multicenter retrospective review. Head Neck 2016; 38:1271-7. [PMID: 27043228 DOI: 10.1002/hed.24438] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 01/24/2016] [Accepted: 01/31/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND In T4a laryngeal cancer with thyroid cartilage invasion, no optimal frontline treatment has yet been defined in controlled trials. METHODS We reviewed data from 89 patients with T4a laryngeal cancer featuring thyroid cartilage invasion who were treated initially with either total laryngectomy (n = 53) or a larynx-preservation strategy (n = 36). RESULTS The median progression-free survival (PFS) of the total laryngectomy group had not been attained at the time of analysis and was thus significantly longer than that of the larynx-preservation group (8.7 months). The median overall survival (OS) of patients who underwent total laryngectomy was 87.2 months, significantly longer than that of the larynx-preservation group (31.3 months). The survival benefit of primary surgery compared to a larynx-preservation strategy was more striking in patients of lower N classifications. CONCLUSION Total laryngectomy may be a better therapeutic option to treat T4a laryngeal cancer featuring thyroid cartilage invasion, especially in patients exhibiting limited nodal involvement (N0/N1). © 2016 Wiley Periodicals, Inc. Head Neck, 2016 © 2016 Wiley Periodicals, Inc. Head Neck 38:1271-1277, 2016.
Collapse
|
80
|
Lee HJ, Ryu JM, Jung YH, Lee KH, Kim DI, Han HJ. Glycerol-3-phosphate acyltransferase-1 upregulation by O-GlcNAcylation of Sp1 protects against hypoxia-induced mouse embryonic stem cell apoptosis via mTOR activation. Cell Death Dis 2016; 7:e2158. [PMID: 27010859 PMCID: PMC4823928 DOI: 10.1038/cddis.2015.410] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/10/2015] [Accepted: 12/14/2015] [Indexed: 12/20/2022]
Abstract
Oxygen signaling is critical for stem cell regulation, and oxidative stress-induced stem cell apoptosis decreases the efficiency of stem cell therapy. Hypoxia activates O-linked β-N-acetyl glucosaminylation (O-GlcNAcylation) of stem cells, which contributes to regulation of cellular metabolism, as well as cell fate. Our study investigated the role of O-GlcNAcylation via glucosamine in the protection of hypoxia-induced apoptosis of mouse embryonic stem cells (mESCs). Hypoxia increased mESCs apoptosis in a time-dependent manner. Moreover, hypoxia also slightly increased the O-GlcNAc level. Glucosamine treatment further enhanced the O-GlcNAc level and prevented hypoxia-induced mESC apoptosis, which was suppressed by O-GlcNAc transferase inhibitors. In addition, hypoxia regulated several lipid metabolic enzymes, whereas glucosamine increased expression of glycerol-3-phosphate acyltransferase-1 (GPAT1), a lipid metabolic enzyme producing lysophosphatidic acid (LPA). In addition, glucosamine-increased O-GlcNAcylation of Sp1, which subsequently leads to Sp1 nuclear translocation and GPAT1 expression. Silencing of GPAT1 by gpat1 siRNA transfection reduced glucosamine-mediated anti-apoptosis in mESCs and reduced mammalian target of rapamycin (mTOR) phosphorylation. Indeed, LPA prevented mESCs from undergoing hypoxia-induced apoptosis and increased phosphorylation of mTOR and its substrates (S6K1 and 4EBP1). Moreover, mTOR inactivation by rapamycin (mTOR inhibitor) increased pro-apoptotic proteins expressions and mESC apoptosis. Furthermore, transplantation of non-targeting siRNA and glucosamine-treated mESCs increased cell survival and inhibited flap necrosis in mouse skin flap model. Conversely, silencing of GPAT1 expression reversed those glucosamine effects. In conclusion, enhancing O-GlcNAcylation of Sp1 by glucosamine stimulates GPAT1 expression, which leads to inhibition of hypoxia-induced mESC apoptosis via mTOR activation.
Collapse
|
81
|
Kim J, Han Y, Ahn JH, Kim SW, Lee SI, Lee KH, Ahn K. Airborne formaldehyde causes skin barrier dysfunction in atopic dermatitis. Br J Dermatol 2016; 175:357-63. [PMID: 27535603 DOI: 10.1111/bjd.14357] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2015] [Indexed: 12/24/2022]
Abstract
BACKGROUND It remains to be elucidated whether exposure to air pollutants aggravates atopic dermatitis (AD). OBJECTIVES This study aimed to evaluate the effects of exposure to formaldehyde for 1 h and 2 h on skin barrier function in both the control and the AD groups. METHODS In 41 patients with AD and 34 healthy children, a provocation test was performed in which two different areas of normal-appearing skin on the forearm were stimulated with airborne formaldehyde at 500 μg m(-3) or placebo for 2 h. We measured transepidermal water loss (TEWL) and skin pH, and calculated the percentage change from baseline. RESULTS Exposure to formaldehyde increased TEWL in the control group [P < 0·001; median of difference 1·4; interquartile range (IQR) 0·9-1·6] and in the AD group (P < 0·001; median of difference 2·5; IQR 2·0-3·6). The percentage change of TEWL after formaldehyde exposure in the AD group was higher than in the control group (P < 0·001), whereas exposure to placebo showed no differences between both groups. The AD group also demonstrated a higher percentage increase in skin pH after exposure to formaldehyde than the control group (P < 0·001). CONCLUSIONS Short-term exposure to formaldehyde causes skin barrier dysfunction in both healthy children and children with AD, and this effect is more prominent in children with AD.
Collapse
|
82
|
Kim TY, Ahn JH, Yoon JH, Sohn JH, Kim GM, Lee KH, Park YH, Koh SJ, Lee SE, Chae Y, Lee KS, Lee KE, Won HS, Kim JH, Jeong J, Park KH, Cho EK, Im YH, Im SA, Jung KH. Abstract P1-09-09: Role of endocrine therapy in premenopausal patients with hormone receptor-positive metastatic breast cancer, compared with postmenopausal patients: Diachronic analyses from nationwide cohort in Korea (KCSG BR 14-07). Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-09-09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Endocrine therapy (E) has a major role in treatment of hormone receptor (HR)-positive metastatic breast cancer (MBC). However, in contrast to western countries, premenopausal patients (PRE) more prevalent (50% of all breast cancer patients) and have less options of E than postmenopausal patients (POST) in Korea where the use of LHRH agonist in combination aromatase inhibitors (AIs) in PRE is restricted. Recently we have been successfully established nationwide cohort for the patients MBC (575 patients from 26 institutes). This study was designed to evaluate the role of E especially in PRE.
Methods
The patients with MBC were prospectively or retrospectively enrolled between September 2014 and May 2015. Only menopausal status-confirmed patients (296) were analyzed. Postmenopause was defined, based on NCCN guideline. Total duration of treatment was defined as the time from start day of any first treatment to end of any last treatment. Total duration of E was defined as the sum of time duration of each E. Overall survival was calculated from the start day of any treatment for MBC to any causes of death. This work is supported by National Strategic Coordinating Center for Clinical Research (H110C2020).
Results
A total of 296 patients with HR-positive MBC were analyzed [PRE, 169 (57.1%) and POST, 127 (42.9%)]. Except age (mean 44 and 60 years), baseline characteristics including in pathology, HER2 status, initial pathologic stage, de novo metastasis versus recurrence, surgery and adjuvant treatment (chemotherapy, endocrine therapy and radiotherapy) were well balanced. 92 (54.4%) of PRE and 77 (60.6%) of POST received at least one or more E through all treatment course. 41 (24.2%) of PRE and 44 (34.6%) received E as 1st-line treatment (p=0.034). Among PRE who received 1st-line of E, 30 (71.4%) and 9 (21.4%) of PRE received 2nd- and 3rd-line E. 20 (45.4%) and 10 (22.7%) of POST received 2nd- and 3rd- or more line of E. Most of PRE (54%) received tamoxifen+/-goserelin and 32% of PRE received AIs along with ovarian suppression. 71% of POST received AIs. As initial treatment, E was more frequently used in POST than in PRE (34.6% and 24.3%, p=0.053). Overall survival (OS) of all patients was 18.2 months (95% CI, 14.8-21.5). There was no difference in OS between PRE (17.8 months, 10.9-24.8) and POST (18.5 months, 95% CI, 13.2-23.9) (P=0.337). No difference of OS was observed (E, 18.1 moths, 95% CI, 13.0-23.3; chemotherapy 21.2 moths, 95% CI, 16.8-25.5), regardless of initial treatment. Total duration of treatment of PRE and POST were 15.2 and 13.6 months, respectively with no significant difference (p=0.389). PRE (8.3 moths, 95% CI,5.7-10.8) showed the trend toward longer duration of E in comparison with POST (5.5 moths, 95% CI,4.4-6.7), however the difference did not reach statistical significance (p=0.051).
Conclusion
E was more commonly used as 1st-line therapy in POST than in PRE. Although PRE had limited options of E, E was used in long duration of treatment especially in PRE. These findings suggested that E had a role in treatment for PRE with HR-positive MBC and could be used in treatment for PRE with good efficacy.
Citation Format: Kim T-Y, Ahn J-H, Yoon JH, Sohn JH, Kim GM, Lee KH, Park YH, Koh S-J, Lee SE, Chae Y, Lee KS, Lee KE, Won HS, Kim JH, Jeong J, Park KH, Cho EK, Im Y-H, Im S-A, Jung KH. Role of endocrine therapy in premenopausal patients with hormone receptor-positive metastatic breast cancer, compared with postmenopausal patients: Diachronic analyses from nationwide cohort in Korea (KCSG BR 14-07). [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-09-09.
Collapse
|
83
|
Kim TY, Sohn JH, Kim SB, Yoon JH, Kim GM, Lee KH, Koh SJ, Park YH, Lee SE, Chae Y, Lee KS, Lee KE, Won HS, Kim JH, Jeong J, Park KH, Cho EK, Im YH, Im SA, Jung KH. Abstract P6-10-03: Does participation in clinical trials influence on survival in patients with metastatic breast cancer? Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p6-10-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Recently, many clinical trials (TRIAL) especially incorporated with molecular-targeted agents are being conducted in treatment for breast cancer worldwide. However, the relation of participating clinical trials with survival has not been actively studied. This study was designed to evaluate whether participation in clinical trials could improve overall survival (OS) or not in patients with metastatic breast cancer (MBC), compared with conventional treatment.
Method
Korean Cancer Study Group (KCSG) has successfully established Nationwide Cohort in KOREA to conduct diachronic analysis (KCSG BR 14-07). Clinical data for patients with MBC were collected from this Cohort. OS was defined as the time duration from first diagnosis of metastasis to any cause of death. This work is supported by National Strategic Coordinating Center for Clinical Research (H110C2020).
Results
A total of 575 patients with metastatic breast from 26 institutes in KOREA cancer MBC were consequently enrolled between September 2014 and May 2015. 156 (27.1%) of patients were enrolled to at least one or more clinical trials and 419 patients received only conventional treatment (CONV). Age, hormone status, HER2 status, initial pathologic stage, metastasis versus recurrence, adjuvant treatment, ECOG performance status (PS) (0, 1 vs 2 or more) were similar between TRIAL and CONV. 30% of trials were associated with HER2-targeted agents. As initial treatment, chemotherapy was more frequently used in TRIAL (85.9%) than in CONV (79.0%) (P=0.038). Number of regimens of chemotherapy was greater in TRIAL (2.9+/-1.8) than CONV (2.1+/-1.6) (P<0.001). Number of regimens of endocrine therapy (E) was similar between TRIAL (1.4+/-0.6) and CONV (1.5+/-0.7) (P=0.474). Overall survival of all patients was 16.2 months (95% CI, 14.1-18.1). TRIAL showed significant prolongation of survival, compared with CONV [21.1 (95% CI, 17.7-24.6) vs 15.1 months (95% CI, 13.1-17.2); P=0.005]. The differences in OS was constantly observed in HER2-positive [23.8 (16.7-30.9) vs 17.2 months (95% CI, 12.4-21.9); P=0.018] and Triple-negative [15.4 (10.5-20.3) vs 12.0 months (95% CI, 10.2-13.8); P=0.025]. In multivariate analysis, initial metastasis, hormone status, ECOG PS did not influence on OS between TRIAL and CONV (P=0.849)
Conclusion
Participating in clinical trials could be associated with prolongation of survival. This results constantly maintained in HER2-positive and triple-negative MBC. These findings suggested that clinical trials are useful for the patients with MBC, even if the patients do not complete the standard treatment.
Citation Format: Kim T-Y, Sohn JH, Kim S-B, Yoon JH, Kim GM, Lee KH, Koh S-J, Park YH, Lee SE, Chae Y, Lee KS, Lee KE, Won HS, Kim JH, Jeong J, Park KH, Cho EK, Im Y-H, Im S-A, Jung KH. Does participation in clinical trials influence on survival in patients with metastatic breast cancer?. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P6-10-03.
Collapse
|
84
|
Park YH, Jung KH, Sohn JH, Lee KS, Lee KH, Kim JH, Kim JY, Jung J, Han H, Park WY, Im SA. Abstract OT3-01-10: A prospective, open-label, single-arm, multi-center, phase II exploratory study to evaluate the efficacy and safety of poziotinib (NOV120101) in patients with HER2-positive metastatic breast cancer who have received at least two prior HER2-directed regimens. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-ot3-01-10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Poziotinib is a novel, oral, irreversible pan-HER inhibitor that has shown promising clinical activity in Phase 1 studies of patients (pts) with advance HER2 positive breast cancer who have failed at least 2 prior lines of HER2-directed therapy. A Phase 2 study of poziotinib was initiated in Korea in March 2015 in pts with HER2+ metastatic breast cancer. This phase 2 study is designed to seek accelerated approval for poziotinib for the treatment of metastatic breast cancer in Korea.
Trial Design: Prospective Phase 2, open-label, single-arm, multi-center study in pts with recurrent, Stage IV breast cancer with HER2-overexpression who had received at least 2 prior HER2-directed regimens
Eligibility Criteria: Histologically confirmed breast cancer patients, at least 19 years of age, with confirmed HER2 positive evaluable tumors (per RECIST, 1.1) who have adequate hematologic, renal, and hepatic function and have failed at least two HER2-directed regimens that included a taxane-containing anticancer chemotherapy, with a life expectancy of at least 12 weeks.
Specific Aims: The Primary Efficacy Endpoint of the study was Progression-Free Survival (PFS). The Secondary Efficacy Endpoints included: PFS rate at 12 weeks post-dose; Objective Response Rate (ORR) including Complete Response (CR) and Partial Response (PR) rates; Disease Control Rate (DCR) including CR, PR, and Stable Disease (SD); Duration of Disease Control; Overall Survival (OS); Time to Progression (TTP); Time to Objective Response and Duration of Objective Response. The Exploratory Endpoints included: Population Pharmacokinetic (PK) Profile and Exploratory Genomic and Biomarker Analyses.
Statistical Methods: In the randomized, multicenter, 2-arm, open-label study of trastuzumab emtansine (TH3RESA18), the median PFS was shown to be 3.3 months in subjects with optimal treatment per Investigator's Choice. This ongoing study with poziotinib expects a median PFS of 4.5 months based on data from a previous Phase 1 study of poziotinib (NOV120101). Based on the following assumptions, a 5% one-sided significance level, and 80% power, and 2 months of accrual and 12 months of follow-up, 66 subjects will be required. Accounting for a 10% drop-out rate, a total of 74 subjects will be recruited into this ongoing Phase 2 study.
Present Accrual and Target Accrual: 17 patients enrolled as of May 20, 2015 with a total target enrollment of 74 patients
Contact information:
ClinicalTrials.gov Identifier: NCT02418689.
Citation Format: Park Y-H, Jung KH, Sohn JH, Lee KS, Lee KH, Kim J-H, Kim J-Y, Jung J, Han H, Park W-Y, Im S-A. A prospective, open-label, single-arm, multi-center, phase II exploratory study to evaluate the efficacy and safety of poziotinib (NOV120101) in patients with HER2-positive metastatic breast cancer who have received at least two prior HER2-directed regimens. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr OT3-01-10.
Collapse
|
85
|
Cherian JJ, Parvizi J, Bramlet D, Lee KH, Romness DW, Mont MA. Preliminary results of a phase II randomized study to determine the efficacy and safety of genetically engineered allogeneic human chondrocytes expressing TGF-β1 in patients with grade 3 chronic degenerative joint disease of the knee. Osteoarthritis Cartilage 2015; 23:2109-2118. [PMID: 26188189 DOI: 10.1016/j.joca.2015.06.019] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 06/12/2015] [Accepted: 06/29/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim of this study was to preliminarily evaluate the efficacy and outcomes of injectable genetically engineered chondrocytes virally transduced with TGF-β1 (GEC-TGF-β1) compared to placebo. DESIGN A multi-center, double-blinded, placebo-controlled, randomized study of adults with knee osteoarthritis. A total of 102 patients were 2:1 randomized to GEC-TGF-β1 or placebo. Primary outcomes assessed were (1) function of the knee joint, scored using the International Knee Documentation Committee (IKDC); and (2) pain, measured by Visual Analog Scale (VAS). Secondary endpoints assessed were pain and analgesic use, quality of life (QOL), and adverse events (AEs) including need for total knee arthroplasty after treatment. RESULTS IKDC showed significant improvement in the GEC-TGF-β1 group over the placebo at week 12 (least mean square difference (LSMD): 10.3; P = 0.0342), week 52 (LSMD: 13.6; P = 0.0082), and overall (LSMD: 8.6; P = 0.0453). VAS Analysis showed a significant improvement in GEC-TGF-β1 group compared to placebo at weeks 12 (LSMD: -13.8; P = 0.0162), 52 (LSMD: -13.1; P = 0.0332), and overall (LSMD: -10.1; P = 0.0350). Reduction in pain severity at week 12 and 52, frequency at 24 h and week 52, and the percentage of patients in the GEC-TGF-β1 group receiving analgesics at week 4 (27 vs 40%) and 12 (27 vs 37%) was observed. CONCLUSIONS GEC-TGF-β1 patients had more positive responses on the IKDC, VAS, and were less likely to require analgesics. TRIAL NUMBER ClinicalTrials.gov (NCT01221441) - "Study of TG-C in Patients with Grade 3 Degenerative Joint Disease of the Knee".
Collapse
|
86
|
Cho YJ, Lee KH, Ahn JH, Hong CK, Ha YR. Evaluation of a novel simulation method of teaching B-lines: hand ultrasound with a wet foam dressing material. Crit Ultrasound J 2015. [PMCID: PMC4401507 DOI: 10.1186/2036-7902-7-s1-a30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
87
|
Lee IK, Jeun M, Jang HJ, Cho WJ, Lee KH. A self-amplified transistor immunosensor under dual gate operation: highly sensitive detection of hepatitis B surface antigen. NANOSCALE 2015; 7:16789-16797. [PMID: 26399739 DOI: 10.1039/c5nr03146j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Ion-sensitive field-effect transistors (ISFETs), although they have attracted considerable attention as effective immunosensors, have still not been adopted for practical applications owing to several problems: (1) the poor sensitivity caused by the short Debye screening length in media with high ion concentration, (2) time-consuming preconditioning processes for achieving the highly-diluted media, and (3) the low durability caused by undesirable ions such as sodium chloride in the media. Here, we propose a highly sensitive immunosensor based on a self-amplified transistor under dual gate operation (immuno-DG ISFET) for the detection of hepatitis B surface antigen. To address the challenges in current ISFET-based immunosensors, we have enhanced the sensitivity of an immunosensor by precisely tailoring the nanostructure of the transistor. In the pH sensing test, the immuno-DG ISFET showed superior sensitivity (2085.53 mV per pH) to both standard ISFET under single gate operation (58.88 mV per pH) and DG ISFET with a non-tailored transistor (381.14 mV per pH). Moreover, concerning the detection of hepatitis B surface antigens (HBsAg) using the immuno-DG ISFET, we have successfully detected trace amounts of HBsAg (22.5 fg mL(-1)) in a non-diluted 1× PBS medium with a high sensitivity of 690 mV. Our results demonstrate that the proposed immuno-DG ISFET can be a biosensor platform for practical use in the diagnosis of various diseases.
Collapse
|
88
|
Chang HK, Hur SY, Park JS, Lee KH. Hybrid Surgical Technique: Single-Site Laparoscopic Myomectomy Using Robotic-Assisted Laparoscopic Suture. J Minim Invasive Gynecol 2015; 22:S211. [PMID: 27679065 DOI: 10.1016/j.jmig.2015.08.754] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
89
|
Lee KH. Destructive obstetric instruments: what do they destroy? Hong Kong Med J 2015; 21:482-483. [PMID: 26793802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
|
90
|
Ryu MH, Baba E, Lee KH, Park YI, Boku N, Hyodo I, Nam BH, Esaki T, Yoo C, Ryoo BY, Song EK, Cho SH, Kang WK, Yang SH, Zang DY, Shin DB, Park SR, Shinozaki K, Takano T, Kang YK. Comparison of two different S-1 plus cisplatin dosing schedules as first-line chemotherapy for metastatic and/or recurrent gastric cancer: a multicenter, randomized phase III trial (SOS). Ann Oncol 2015. [PMID: 26216386 DOI: 10.1093/annonc/mdv316] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Five-weekly S-1 plus cisplatin (SP5) is one of the standard first-line regimens for advanced gastric cancer (GC), proven in a Japanese phase III study. To enhance the dose intensity of cisplatin, 3-weekly S-1 plus cisplatin (SP3) was developed. PATIENTS AND METHODS This multicenter, randomized, open-label, phase III study evaluated whether SP3 (S-1 80 mg/m(2)/day on days 1-14 and cisplatin 60 mg/m(2) on day 1) was noninferior/superior to SP5 (S-1 80-120 mg/day on days 1-21 and cisplatin 60 mg/m(2) on day 1 or 8) in terms of progression-free survival (PFS). Chemotherapy-naive patients with metastatic, recurrent gastric or gastroesophageal junction adenocarcinoma were randomized 1 : 1 to receive either SP3 or SP5. The trial is registered at ClinicalTrials.gov (NCT00915382). RESULTS Between February 2009 and January 2012, 625 patients were randomized at 42 sites in Korea and Japan. With a median follow-up duration of 32.4 months (range, 13.3-48.6 months) in surviving patients, SP3 was not only noninferior but also superior to SP5 in terms of PFS [median 5.5 versus 4.9 months; hazard ratio (HR) = 0.82; 95% confidence interval (CI) 0.68-0.99; P = 0.0418 for superiority). There was no difference in overall survival (OS) between the groups (median 14.1 versus 13.9 months; HR = 0.99; 95% CI 0.81-1.21; P = 0.9068). In patients with measurable disease, the response rates were 60% in the SP3 arm and 50% in the SP5 arm (P = 0.065). Both regimens were generally well tolerated, but grade 3 or higher anemia (19% versus 9%) and neutropenia (39% versus 9%) were more frequent in SP3. CONCLUSIONS SP3 is superior to SP5 in terms of PFS. However, since the improvement in PFS was only slight and there was no difference in OS, both SP3 and SP5 can be recommended as first-line treatments for patients with advanced GC.
Collapse
|
91
|
Lee KH, Kim YH, Sung YJ, Oh MK. The Patient State Index is well balanced for propofol sedation. Hippokratia 2015; 19:235-238. [PMID: 27418783 PMCID: PMC4938471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND The SEDLine™ monitor derived patient state index (PSI) is used to follow the depth of sedation. The demand for propofol sedation by anesthesiologists or non-anesthesiologists is increasing, and there are only a few studies addressing the relationship between PSI and propofol sedation. We aimed to investigate the ability of PSI index to identify the correct level of sedation of our patients during induction to anesthesia with target-controlled infusions of propofol. METHODS Twenty patients were enrolled in this study. The target effect site concentration of propofol was set at 1.5 μg/ml followed by increments of 0.5 μg/ml every five minutes. The PSI values and Modified Observer's Assessment of Alertness/Sedation (MOAA/S) scale were recorded every twenty-five seconds during the infusion of propofol. Patients were considered losing verbal responsiveness at MOAA/S scale ≤ 2. Also, blood pressure, heart rate, and oxygen saturation were recorded every five minutes. RESULTS The PSI values corresponding to the sedation of various depths (MOAA/S scales) and alertness with verbal response were significantly different (p <0.001). We observed a good correlation of the PSI values to the decreasing MOAA/S scale (r =0.87667). CONCLUSIONS The PSI index is well correlated with MOAA/S scale and effectively distinguishes the level of sedation during propofol infusion. Hippokratia 2015; 19 (3): 235-238.
Collapse
|
92
|
|
93
|
Lim JH, Lee KH, Park KU, Park IH, Cho EK, Lee MH, Yoon SY, Kim JH, Choi IS, Park JH, Choi YJ, Kim HJ, Jung KH, Kim SY, Oh DY, Im SA. Abstract P3-12-07: A multicenter randomized double-blind phase III clinical trial to evaluate the efficacy and safety of GCPGC, a novel pegylated G-CSF in patients receiving DA or TAC chemotherapy for breast cancer compared to peg-filgrastim. Cancer Res 2015. [DOI: 10.1158/1538-7445.sabcs14-p3-12-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction
Treatment with cytotoxic chemotherapy is known to be associated with a significant risk of febrile neutropenia. GCPGC(Green Cross Co., Korea) is a novel long acting recombinant human granulocyte colony-stimulating factor (G-CSF) analog that reduces the severity and duration of neutropenia. We conducted a phase III trial to evaluate the efficacy and safety of GCPGC compared to pegfilgrastim.
Methods
A total of 117 patients were enrolled in this multicenter, phase III, double-blind randomized trial between Feb 2012 and May 2013. They were randomly assigned to receive either GCPGC or pegfilgrastim during the maximal 6 cycles of chemotherapy which consisted of DA (docetaxel and doxorubicin) or TAC (docetaxel, doxorubicin, and cyclophosphamide). Based on the results of the phase II dose-finding study for GCPGC, the dose of 6 mg was selected. Both medications were administered 24 hours after the completion of each cycle of chemotherapy. The primary efficacy endpoint of this study was the duration of grade 4 neutropenia (Absolute Neutrophil Count (ANC) <500/mm3) during the first cycle of chemotherapy. Secondary endpoints included the time to ANC recovery during the first cycle of chemotherapy, which was defined as the number of days required for neutrophil counts to exceed 2,000/mm3, the rate of febrile neutropenia, the rate of severe neutropenia which persisted for more than three days during first cycle of chemotherapy, the depth of ANC nadir, the ANC level on day 7 after each cycle of chemotherapy, the frequency of dose reduction or delay, the number of hospitalization related to febrile neutropenia after the first cycle of chemotherapy, and the number of treatment with intravenous antibiotics.
Results
A total of 116 patients were evaluable for safety and 115 patients were evaluable for efficacy. The intention-to-treat analysis showed that there was no statistical difference between GCPGC and pegfilgrastim in terms of the duration (days) of grade 4 neutropenia in chemotherapy cycle 1 (1.64±1.18 vs 1.80±1.05; difference -0.15±1.11 [97.5% C.I. -, 0.26]; the pre-specified non-inferiority margin of 1.0). Notably, patients treated with GCPGC had a statistically significant reduction in the time to recovery from neutropenia (ANC >2,000/mm3), one of the secondary endpoints of the study, compared to those treated with pegfilgrastim (8.85 ± 1.45 vs. 9.83 ± 1.20 days; p <0.0001). There was no difference between groups regarding the other secondary endpoints. In addition, no significant differences were observed between the safety profiles of the two groups.
Conclusion
Collectively, GCPGC is not inferior to peg-filgrastim and represents an effective alternative for reducing the duration of neutropenia in breast cancer patients receiving TAC or DA chemotherapy.
Citation Format: Joo Han Lim, Ki-Hyeong Lee, Keon-Uk Park, In-Hae Park, Eun Kyung Cho, Moon Hee Lee, So-Young Yoon, Jee-Hyun Kim, In-Sil Choi, Jae-Hoo Park, Young-Jin Choi, Hee-Jun Kim, Kyung Hae Jung, Si-Young Kim, Do-Youn Oh, Seock-Ah Im. A multicenter randomized double-blind phase III clinical trial to evaluate the efficacy and safety of GCPGC, a novel pegylated G-CSF in patients receiving DA or TAC chemotherapy for breast cancer compared to peg-filgrastim [abstract]. In: Proceedings of the Thirty-Seventh Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2014 Dec 9-13; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2015;75(9 Suppl):Abstract nr P3-12-07.
Collapse
|
94
|
Lee KH, Lee SB, Cho KC. Levels of organic osmolytes in normal and diuretic rat kidneys. CONTRIBUTIONS TO NEPHROLOGY 2015; 95:279-83. [PMID: 1807919 DOI: 10.1159/000420670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
95
|
Endou H, Jung KY, Komatsu Y, Lee KH. Role of ammonium ion in adenosine triphosphate consumption of the rat medullary thick ascending limb. CONTRIBUTIONS TO NEPHROLOGY 2015; 92:149-59. [PMID: 1661662 DOI: 10.1159/000420092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
96
|
Cho IR, Kaowinn S, Song J, Kim S, Koh SS, Kang HY, Ha NC, Lee KH, Jun HS, Chung YH. RETRACTED ARTICLE: VP2 capsid domain of the H-1 parvovirus determines susceptibility of human cancer cells to H-1 viral infection. Cancer Gene Ther 2015; 22:271-7. [DOI: 10.1038/cgt.2015.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Accepted: 02/09/2015] [Indexed: 12/21/2022]
|
97
|
Kim YJ, Kwon HK, Lee JM, Kim YJ, Kim HJ, Jung NY, Kim ST, Lee KH, Na DL, Seo SW. White matter microstructural changes in pure Alzheimer's disease and subcortical vascular dementia. Eur J Neurol 2015; 22:709-16. [PMID: 25603760 DOI: 10.1111/ene.12645] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 11/12/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Recent studies have demonstrated that Alzheimer's disease (AD) and subcortical vascular dementia (SVaD) have white matter (WM) microstructural changes. However, previous studies on AD and SVaD rarely eliminated the confounding effects of patients with mixed Alzheimer's and cerebrovascular disease pathologies. Therefore, our aim was to evaluate the divergent topography of WM microstructural changes in patients with pure AD and SVaD. METHODS Patients who were clinically diagnosed with AD and SVaD were prospectively recruited. Forty AD patients who were Pittsburgh compound B (PiB) positive [PiB(+) AD] without WM hyperintensities and 32 SVaD patients who were PiB negative [PiB(-) SVaD] were chosen. Fifty-six cognitively normal individuals were also recruited (NC). Tract-based spatial statistics of diffuse tensor imaging were used to compare patterns of fractional anisotropy (FA) and mean diffusivity (MD). RESULTS Compared with the NC group, the PiB(+) AD group showed decreased FA in the bilateral frontal, temporal and parietal WM regions and the genu and splenium of the corpus callosum as well as increased MD in the left frontal and temporal WM region. PiB(-) SVaD patients showed decreased FA and increased MD in all WM regions. Direct comparison between PiB(+) AD and PiB(-) SVaD groups showed that the PiB(-) SVaD group had decreased FA across all WM regions and increased MD in all WM regions except occipital regions. CONCLUSION Our findings suggest that pure AD and pure SVaD have divergent topography of WM microstructural changes including normal appearing WM.
Collapse
|
98
|
Chong HT, Ramli N, Lee KH, Kim BJ, Ursekar M, Dayananda K, Singhal BS, Chong J, Chan LL, Seetoh YY, Chawalparit O, Prayoonwiwat N, Chang EC, Tsai CP, Tang KW, Li PCK, Tan CT. Magnetic Resonance Imaging of Asians with Multiple Sclerosis was Similar to that of the West. Can J Neurol Sci 2014; 33:95-100. [PMID: 16583730 DOI: 10.1017/s0317167100004777] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Magnetic resonance imaging (MRI) of the brain is the most important paraclinical diagnostic test in multiple sclerosis (MS). The appearance of MRI in Asians with MS is not well defined. We retrospectively surveyed the first brain and spinal cord MRI in patients diagnosed to have MS, according to Poser's criteria in seven regions throughout Asia to define the MRI changes among Asians with MS. There were 101 patients with first brain, and 86 with first spinal cord MRI, 66 of whom had both. The brain MRI showed a mean of 17 lesions per patient in T2 weighted images, mostly asymptomatic. Almost all the lesions were in the white matter, particularly in the juxtacortical, deep and periventricular white matter. A third of the lesions were greater than 5 mm, 14% enhanced with gadolinium. There were more supratentorial than infratentorial lesions at a ratio of 7.5: 1. Ninety five percent of the spinal cord lesions were in cervical and thoracic regions, 34% enhanced with gadolinium. The lesions extended over a mean of 3.6 +/- 3.3 vertebral bodies in length. Fifty (50%) of the brain and 54 (63%) of the spinal MRI patients had the optic-spinal form of MS. The MRI of the optic-spinal and classical groups of patients were similar in appearance and distribution, except that the optic-spinal MS patients have fewer brain but longer and more severe spinal cord lesions. In conclusion, the brain and spinal cord MRI of Asian patients with MS was similar to that of the West, although, in this study, Asian MS patients had larger spinal cord lesions.
Collapse
|
99
|
Lee JY, Lee KT, Lee JK, Lee KH, Jang KT, Heo JS, Choi SH, Kim YI, Rhee JC. Erratum: Farnesoid X receptor, overexpressed in pancreatic cancer with lymph node metastasis promotes cell migration and invasion. Br J Cancer 2014. [PMCID: PMC4264432 DOI: 10.1038/bjc.2014.449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
100
|
Hour MJ, Lee KH, Chen TL, Lee KT, Zhao Y, Lee HZ. Molecular modelling, synthesis, cytotoxicity and anti-tumour mechanisms of 2-aryl-6-substituted quinazolinones as dual-targeted anti-cancer agents. Br J Pharmacol 2014; 169:1574-86. [PMID: 23638624 DOI: 10.1111/bph.12233] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 04/01/2013] [Accepted: 04/18/2013] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE Our previous study demonstrated that 6-(pyrrolidin-1-yl)-2-(3-methoxyphenyl)quinazolin-4-one (HMJ38) was a potent anti-tubulin agent. Here, HMJ38 was used as a lead compound to develop more potent anti-cancer agents and to examine the anti-cancer mechanisms. EXPERIMENTAL APPROACH Using computer-aided drug design, 2-aryl-6-substituted quinazolinones (MJ compounds) were designed and synthesized by introducing substituents at C-2 and C-6 positions of HMJ38. The cytotoxicity of MJ compounds towards human cancer cells was examined by Trypan blue exclusion assay. Microtubule distribution was visualized using TubulinTracker(TM) Green reagent. Protein expression of cell cycle regulators and JNK was assessed by Western blot analysis. KEY RESULTS Compounds MJ65-70 exhibited strong anti-proliferative effects towards melanoma M21, lung squamous carcinoma CH27, lung non-small carcinoma H460, hepatoma Hep3B and oral cancer HSC-3 cells, with one compund MJ66 (6-(pyrrolidin-1-yl)-2-(naphthalen-1-yl)quinazolin-4-one) highly active against M21 cells (IC50 about 0.033 μM). Treatment of CH27 or HSC-3 cells with MJ65-70 resulted in significant mitotic arrest accompanied by increasing multiple asters of microtubules. JNK protein expression was involved in the MJ65-70-induced CH27 and M21 cell death. Consistent with the cell cycle arrest at G2/M phase, marked increases in cyclin B1 and Bcl-2 phosphorylation were also observed, after treatment with MJ65-70. CONCLUSIONS AND IMPLICATION MJ65-70 are dual-targeted, tubulin- and JNK-binding, anti-cancer agents and induce cancer cell death through up-regulation of JNK and interfering in the dynamics of tubulin. Our work provides a new strategy and mechanism for developing dual-targeted anti-cancer drugs, contributing to clinical anti-cancer drug discovery and application.
Collapse
|