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Greenwell K, Hussain L, Ho C, Dunki-Jacobs E, Lee D, Bramlage M, Bills G, Mehta A, Jones J, Jackson A, Wexelman B. Abstract PD3-04: Complete pathologic response rate to neoadjuvant chemotherapy increases with increasing HER2 ratio in HER2 over-expressing breast cancer: Analysis of the National cancer database (NCDB). Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-pd3-04] [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: HER2-positive (HER2+) breast cancer is an aggressive subtype that overexpresses human epidermal growth factor receptor 2 promoting cancer cell growth. Monoclonal antibodies targeting the HER2 receptor have improved survival for this patient population, and current NCCN guidelines recommend consideration of neoadjuvant anti-HER2 therapy (NAC) in Stage 2 & 3 HER2+ breast cancer. Pathologic complete response (pCR) to NAC has correlated with longer disease free survival in multiple trials.
Per ASCO-CAP guidelines tumors are considered HER2+ if HER2 copy number≥ 6/cell, HER2/CEP17 ratio≥ 2, or ratio<2 & HER2 copy number ≥6/cell. We hypothesize that patients with higher HER2 ratios will have higher rates of pCR after NAC.
Methods: The National Cancer Database is supported by the American College of Surgeons and the American Cancer Society containing de-identified patient treatment data from over 1,500 US facilities. We performed a retrospective review comparing pCR rates after NAC based on HER2 ratio. Patients were excluded if they were HER2 negative, did not undergo NAC, or if the HER2 ratio was not recorded. Chi-squared and Fisher's exact test were used to compare pCR versus partial response between deciles of HER2 ratios.
Results: The NCDB included 237,118 patients with HER2 equivocal or HER2+ breast tumors. 29,291 of these patients underwent NAC, and HER2 ratios were recorded in 14,597 of the NAC cases. The majority (98%) of included cases were from 2010-2014. A pCR was noted in 9,752 patients and 11,402 patients had a partial response. No response was observed in 1,735 patients and 6,402 patients had a response but the degree was not recorded.
HER2 ratios were significantly different between pCR vs. partial response groups, p <0.001. We identified a direct relationship between increasing HER2 ratio and response to NAC. For ratios 2-2.9, 23.6% achieved pCR and 44.7% had a partial response. For ratio of 5-5.9, 40.7% achieved pCR and even higher rates of pCR were noted for ratios 8-8.9; 49.5% achieved pCR. While both estrogen receptor (ER) positive and ER negative tumors demonstrated this trend, ER negative tumors had higher rates of pCR (ER negative pCR range 37.6% to 59.4% vs ER positive pCR range 16.9% to 42.3%, p<0.01).
Conclusion: Contrary to current dogma, not all HER2+ tumors respond similarly to NAC. We demonstrate a linear relationship between HER2 ratio and pCR in over 14,000 patients. Those with HER2 ratios ≥5.0 were more likely to achieve pCR compared to patients with ratio ≤4.9. The NCDB reflects current clinical practice across the country not restricted to confines of clinical trials, and in this population higher HER2 ratios are predictive of pCR after NAC.
Response to NAC by Her2 Ratio- Complete vs Partial Response Response to NAC p ValueHER2 Ratio Complete Response- pCR (N) Partial Response (N) 1.00- 1.99141819.5%343047.2%<0.01 2.00- 2.9951423.6%97444.7%<0.01 3.00- 3.9928328.7%41942.4%<0.01 4.00- 4.9926533.2%30638.2%<0.01 5.00- 5.9929940.7%24333.1%<0.01 6.00- 6.9929241.0%25435.5%<0.01 7.00- 7.9924746.2%17432.5%<0.01 8.00- 8.9918749.5%12132.0%<0.01 9.00- 9.87 and greater44143.9%31431.3%<0.01TOTAL 394627.0%623542.7%<0.01
Citation Format: Greenwell K, Hussain L, Ho C, Dunki-Jacobs E, Lee D, Bramlage M, Bills G, Mehta A, Jones J, Jackson A, Wexelman B. Complete pathologic response rate to neoadjuvant chemotherapy increases with increasing HER2 ratio in HER2 over-expressing breast cancer: Analysis of the National cancer database (NCDB) [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr PD3-04.
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Ha KH, Kim SA, Lee YM, Kim DJ, Lee DH. Can persistent organic pollutants distinguish between two opposite metabolic phenotypes in lean Koreans? DIABETES & METABOLISM 2018; 44:168-171. [PMID: 29395811 DOI: 10.1016/j.diabet.2017.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/02/2017] [Accepted: 12/19/2017] [Indexed: 10/18/2022]
Abstract
AIMS This study investigated the association of persistent organic pollutants (POPs), an emerging new risk factor for type 2 diabetes and the metabolic syndrome, with the presence of opposite phenotypes of glucose and lipid metabolism among normal-weight Koreans of similar body composition. METHODS Fifty subjects, randomly selected from an ongoing community-based cohort study, from two opposite phenotype groups - metabolically unhealthy normal weight (MUHNW) and metabolically healthy normal weight (MHNW) - were matched for waist circumference, visceral fat mass and demographic variables, then compared for serum concentrations of POPs. RESULTS Most POPs (10 out of 13 compounds) were present in higher serum concentrations in the MUHNW than in the MHNW. In particular, serum concentrations of all compounds of the organochlorine pesticide class were 2.2 to 4.7 times higher in cases than in controls. Compared with the lowest tertile of summary measures of POPs, Odds ratios (95% confidence interval) for the second and third tertiles were 7.4 (1.9-29.4) and 10.4 (2.6-41.2), respectively. Adjusting for possible confounders did not change the results. CONCLUSION Taken altogether, these findings from the present and previous studies suggest that increased serum POP concentrations may play an important role in the development of unhealthy metabolic phenotypes in lean people.
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Hwang YJ, Kim N, Lee HS, Lee JB, Choi YJ, Yoon H, Shin CM, Park YS, Lee DH. Reversibility of atrophic gastritis and intestinal metaplasia after Helicobacter pylori eradication - a prospective study for up to 10 years. Aliment Pharmacol Ther 2018; 47:380-390. [PMID: 29193217 DOI: 10.1111/apt.14424] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 07/31/2017] [Accepted: 10/27/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Atrophic gastritis and intestinal metaplasia are premalignant conditions for gastric cancer. Their reversibility by Helicobacter pylori eradication remains controversial. AIM To evaluate the reversibility of atrophic gastritis and intestinal metaplasia by H. pylori eradication with long-term follow-up. METHODS 598 subjects were prospectively enrolled and followed for up to 10 years. They were categorised as H. pylori-negative (n = 65), H. pylori non-eradicated (n = 91), and H. pylori-eradicated (n = 442). Histological assessment was performed for antrum and corpus by Sydney classification. RESULTS Histological follow-up was performed regularly at 1, 2, 3-4 and ≥5 years, with mean follow-up of 1.07 ± 0.21, 2.29 ± 0.83, 3.93 ± 1.02, and 6.45 ± 1.28 years, respectively. Atrophic gastritis in antrum and corpus gradually and significantly (both P < .05 for all timepoints) improved only in the H. pylori-eradicated group compared to that at baseline. Significant difference in atrophic gastritis between H. pylori-eradicated and H. pylori-negative groups disappeared from 1-year follow-up. Similarly, intestinal metaplasia in antrum and corpus improved significantly (both P < .05 for all timepoints) only in the H. pylori-eradicated group in comparison with that at baseline. Significant difference in intestinal metaplasia between H. pylori-eradicated and H. pylori-negative groups disappeared from ≥5 years of follow-up in the antrum and from 3 years of follow-up in the corpus. CONCLUSION H. pylori eradication may be a preventative strategy for intestinal-type gastric cancer by regression of atrophic gastritis and intestinal metaplasia.
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Bhuiyan MSA, Kim HJ, Lee DH, Lee SH, Cho SH, Yang BS, Kim SD, Lee SH. Genetic parameters of carcass and meat quality traits in different muscles (longissimus dorsi and semimembranosus) of Hanwoo (Korean cattle). J Anim Sci 2018; 95:3359-3369. [PMID: 28805895 DOI: 10.2527/jas.2017.1493] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We estimated heritability () and genetic and phenotypic correlations for carcass and meat quality traits of longissimus dorsi (LD) and semimembranosus (SM) muscles in 30-mo-old Hanwoo steers. Variance and covariance components were estimated using REML procedures under univariate and bivariate models. The mean carcass weight (CWT), eye muscle area (EMA), back fat thickness (BFT), and marbling score (MS) were 428.20 ± 46.30 kg, 87.38 ± 8.54 cm2, 13.00 ± 5.14 mm, and 5.21 ± 1.56, respectively. The mean CIE reflectance of meat lightness (L*), redness (a*), and yellowness (b*) were 40.01 ± 2.73, 22.37 ± 2.18, and 10.35 ± 1.46, respectively, in LD muscles and 36.33 ± 2.44, 22.91 ± 2.43, and 10.25 ± 1.65, respectively, in SM muscles. The mean Warner-Bratzler shear force (WBSF), intramuscular fat content (IMF), water-holding capacity (WHC), and protein and ash content in LD and SM muscles were 3.84 ± 0.96 and 6.52 ± 1.21 kg, 15.91 ± 4.39 and 5.10 ± 1.94%, 62.07 ± 3.38 and 71.61 ± 2.06%, 20.01 ± 1.39 and 21.34 ± 0.89%, and 0.80 ± 0.10 and 0.93 ± 0.07, respectively. The estimates of CWT, EMA, BFT, and MS were 0.51 ± 0.13, 0.45 ± 0.13, 0.29 ± 0.09, and 0.22 ± 0.08, respectively. The estimates were moderate for meat quality traits and were 0.37 ± 0.12, 0.40 ± 0.12, 0.33 ± 0.10, 0.33 ± 0.10, 0.30 ± 0.11, and 0.24 ± 0.09 for L*, WBSF, IMF, WHC, and protein and ash content, respectively, in LD muscle; estimates from SM muscle were comparatively low (0.08 ± 0.06 to 0.25 ± 0.09). Estimates of for a* and b* were also low (0.08 ± 0.06 to 0.13 ± 0.07). Carcass weight had a moderate, positive genetic correlation with EMA (0.60 ± 0.13) and a weak correlation with MS and BFT. The genetic correlations among the 3 colorimeter variants were strong and positive within and between muscles. Intramuscular fat content had moderate to strong and negative genetic correlations with WBSF (-0.49 ± 0.18), WHC (-0.99 ± 0.01), and protein (-0.93 ± 0.04) and ash content (-0.98 ± 0.06) in LD muscle, whereas the associations were less pronounced in SM muscle. In general, CWT and EMA had low genetic and phenotypic correlations with meat quality traits, which suggests that the traits are independent and have distinct genetic contributions in each muscle. Conversely, with few exceptions, meat quality traits had genetic and phenotypic correlations with MS and BFT. In conclusion, the estimated genetic parameters for carcass and meat quality traits could be used for genetic evaluation and breeding programs in Korean Hanwoo cattle populations.
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Seo S, Woo CG, Lee DH, Choi J. The clinical impact of an EML4-ALK variant on survival following crizotinib treatment in patients with advanced ALK-rearranged non-small-cell lung cancer. Ann Oncol 2018; 28:1667-1668. [PMID: 28407036 DOI: 10.1093/annonc/mdx185] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Indexed: 11/14/2022] Open
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Ahn TB, Na B, Lee D. Visuospatial dysfunction in cube copying test and clock drawing test in non-demented Parkinson’s disease: a volumetric analysis. Parkinsonism Relat Disord 2018. [DOI: 10.1016/j.parkreldis.2017.11.172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kim EJ, Kim YK, Kim S, Kim JE, Tian YD, Doh EJ, Lee DH, Chung JH. Adipochemokines induced by ultraviolet irradiation contribute to impaired fat metabolism in subcutaneous fat cells. Br J Dermatol 2017; 178:492-501. [PMID: 28845522 DOI: 10.1111/bjd.15907] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2017] [Indexed: 01/02/2023]
Abstract
BACKGROUND Adipose tissue is now appreciated as the pivotal regulator of metabolic and endocrine functions. Subcutaneous (SC) fat, in contrast to visceral fat, may protect against metabolic syndrome and systemic inflammation. We demonstrated that chronic as well as acute ultraviolet (UV) irradiation to the skin induces loss of underlying SC fat. UV-irradiated SC fat may produce chemokines or cytokines that modulate lipid homeostasis and secretion of adipokines. OBJECTIVES To elucidate UV-induced specific adipochemokines implicated in UV-induced modulation of SC fat. METHODS Primary cultured adipocytes were treated with conditioned medium from UV- or sham-irradiated skin cells. Young and older healthy participants provided SC fat from sun-exposed and sun-protected skin. Sun-protected skin from other participants was irradiated with UV. Differentially expressed adipochemokines were screened by cytokine array, and confirmed in vitro and in vivo. The functions of select adipochemokines involved in lipid metabolism were examined via short interfering RNA-mediated knockdown of cognate receptors. RESULTS Specific adipochemokines, including C-X-C motif chemokine (CXCL) family members such as CXCL5/ENA-78, and C-C motif chemokine (CCL) family members such as CCL20/MIP-3α and CCL5/RANTES, were greatly induced in SC fat by UV exposure. They could impair triglyceride synthesis via downregulation of lipogenic enzymes and sterol regulatory element-binding protein-1 through their respective cognate receptors, CXC chemokine receptor type (CXC-R)2, C-C chemokine receptor type (CCR)-6, and CCR-5. In addition, UV irradiation induced infiltration of adipose tissue macrophages responsible for the secretion of several chemokines into SC fat. CONCLUSIONS These UV-induced adipochemokines may be implicated in the reduction of lipogenesis in SC fat, leading to impairment of fat homeostasis and associated comorbidities such as obesity.
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Paz-Ares L, Tan EH, O'Byrne K, Zhang L, Hirsh V, Boyer M, Yang JCH, Mok T, Lee KH, Lu S, Shi Y, Lee DH, Laskin J, Kim DW, Laurie SA, Kölbeck K, Fan J, Dodd N, Märten A, Park K. Afatinib versus gefitinib in patients with EGFR mutation-positive advanced non-small-cell lung cancer: overall survival data from the phase IIb LUX-Lung 7 trial. Ann Oncol 2017; 28:270-277. [PMID: 28426106 PMCID: PMC5391700 DOI: 10.1093/annonc/mdw611] [Citation(s) in RCA: 360] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Background In LUX-Lung 7, the irreversible ErbB family blocker, afatinib, significantly improved progression-free survival (PFS), time-to-treatment failure (TTF) and objective response rate (ORR) versus gefitinib in patients with epidermal growth factor receptor (EGFR) mutation-positive non-small-cell lung cancer (NSCLC). Here, we present primary analysis of mature overall survival (OS) data. Patients and methods LUX-Lung 7 assessed afatinib 40 mg/day versus gefitinib 250 mg/day in treatment-naïve patients with stage IIIb/IV NSCLC and a common EGFR mutation (exon 19 deletion/L858R). Primary OS analysis was planned after ∼213 OS events and ≥32-month follow-up. OS was analysed by a Cox proportional hazards model, stratified by EGFR mutation type and baseline brain metastases. Results Two-hundred and twenty-six OS events had occurred at the data cut-off (8 April 2016). After a median follow-up of 42.6 months, median OS (afatinib versus gefitinib) was 27.9 versus 24.5 months [hazard ratio (HR) = 0.86, 95% confidence interval (CI) 0.66‒1.12, P = 0.2580]. Prespecified subgroup analyses showed similar OS trends (afatinib versus gefitinib) in patients with exon 19 deletion (30.7 versus 26.4 months; HR, 0.83, 95% CI 0.58‒1.17, P = 0.2841) and L858R (25.0 versus 21.2 months; HR 0.91, 95% CI 0.62‒1.36, P = 0.6585) mutations. Most patients (afatinib, 72.6%; gefitinib, 76.8%) had at least one subsequent systemic anti-cancer treatment following discontinuation of afatinib/gefitinib; 20 (13.7%) and 23 (15.2%) patients received a third-generation EGFR tyrosine kinase inhibitor. Updated PFS (independent review), TTF and ORR data were significantly improved with afatinib. Conclusion In LUX-Lung 7, there was no significant difference in OS with afatinib versus gefitinib. Updated PFS (independent review), TTF and ORR data were significantly improved with afatinib. Clinicaltrials.gov identifier NCT01466660.
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Lee D, Gweon DG, Yoo H. Multipoint scanning dual-detection confocal microscopy for fast 3D volumetric measurement. J Microsc 2017; 270:200-209. [PMID: 29251786 DOI: 10.1111/jmi.12674] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/13/2017] [Accepted: 11/28/2017] [Indexed: 11/29/2022]
Abstract
We propose a multipoint scanning dual-detection confocal microscopy (MS-DDCM) system for fast 3D volumetric measurements. Unlike conventional confocal microscopy, MS-DDCM can accomplish surface profiling without axial scanning. Also, to rapidly obtain 2D images, the MS-DDCM employs a multipoint scanning technique, with a digital micromirror device used to produce arrays of effective pinholes, which are then scanned. The MS-DDCM is composed of two CCDs: one collects the conjugate images and the other collects nonconjugate images. The ratio of the axial response curves, measured by the two detectors, provides a linear relationship between the height of the sample surface and the ratio of the intensity signals. Furthermore, the difference between the two images results in enhanced contrast. The normalising effect of the MS-DDCM provides accurate sample heights, even when the reflectance distribution of the surface varies. Experimental results confirmed that the MS-DDCM achieved high-speed surface profiling with improved image contrast capability.
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Hong JY, Kim CW, Noh H, Lee DH, Kim SE, Lee SJ. The Effect of Animation-Assisted Informed Consent Using Tablet Personal Computer for Contrast-Enhanced Computed-Tomography in Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction Informed consent is essential patient's right even in overcrowded emergency department (ED). We compared the effect of animation-assisted informed consent using tablet PC with the standard informed consent for contrast-enhanced computed-tomography (CT) in ED. Methods We included 150 patients scheduled to undergo contrast-enhanced CT in ED from November 2010 through January 2011. Participants were randomised to either animation-assisted information (AAI) (n=75) or standard verbal information (SVI) group (n=75). AAI was provided by tablet personal computer (PC); and SVI by clinicians. All participants completed 10-point scale questionnaires after the CT scan. The questionnaires included two main categories – understanding and satisfaction of informed consent. Results Participants in the AAI group had a better understanding of purpose (8.95±1.48 vs. 8.32±1.88, p=0.026) and methods (8.93±1.43 vs. 8.37±1.83, p=0.048) of CT scans compared to participants in the SVI group. Every score in satisfaction categories was significantly higher in the AAI group. In the SVI group, relatively low-educated participants had a lower score in understanding when compared with university-educated participants (7.53±2.28 vs. 8.52±1.40, p=0.029). Regardless of education level, understanding score was high in the AAI group (8.73±1.27 vs. 8.57±1.50, p=0.71). Conclusions Participants receiving animation assisted informed consent with tablet PC shows a higher degree of understanding and satisfaction compared with patients receiving standard verbal informed consent. Particularly in patients with lower education, animation-assisted informed consent may be better for understanding of contrast-enhanced CT.
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Ahn JH, Chung JW, Kim CW, Lee DH. Preparedness of Young Male Physicians for Biological Terrorism and Warfare in South Korea. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction The events of 11th September 2001, and the subsequent anthrax attacks in the United States brought the threat of bioterrorism to the forefront of concern for public health departments. Moreover, the rising confrontation between North and South Korea emphasizes the possibility of aggression with biological weapons and our vulnerability to bioterrorism. While the importance of physicians' interests and management ability is becoming more critical, no studies have yet been undertaken in Korea to assess whether primary care physicians are well informed and capable of managing bioterrorism. This study evaluates the awareness and response of young male physicians to potential bioterrorism in South Korea. Method A total of 692 young male physicians completed the knowledge and awareness survey during the education period of military service on 9th April 2005. Results Forty-five percent of the participants responded that the possibility of biological warfare in Korea was high. The level of bioterrorism knowledge, however, was low. Eighty-seven percent acknowledged the necessity of education and training for bioterrorism, and 69.9% were willing to accept education and training in bioterrorism preparedness. Conclusion These findings suggest that young physicians should receive continuous education and training to improve preparedness for biological terrorism and warfare in South Korea.
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Lee DH, Choi YH. Severe Glyphosate-Surfactant Intoxication: Successful Treatment with Continuous Renal Replacement Therapy. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791702400107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Glyphosate-surfactant is one of the most commonly used herbicides in the world. Its key component, glyphosate, is a competitive inhibitor of the shikimate pathway, a metabolic pathway found only in plants. However, severe intoxication, including lethal cases by ingestion of, glyphosate-surfactant has been reported. We describe the full recovery of two patients from glyphosate-polyoxyethyleneamine surfactant intoxication and multi-organ system failure following continuous renal replacement therapy. Both patients developed persistent shock, acute kidney injury, lactic acidosis, hyperkalaemia and multi-organ failure despite of resuscitation. We believe that continuous renal replacement therapy should be initiated immediately for removal of glyphosate-polyoxyethyleneamine surfactant in patients with signs of cardiopulmonary compromise, lactic acidosis, and renal failure. We propose the addition of glyphosate-polyoxyethyleneamine surfactant to the list of toxins for which early haemodialysis should be indicated.
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Yun HW, Lee DH, Lee JH, Cheon YJ, Choi YH. Serial Serum Cholinesterase Activities as a Prognostic Factor in Organophosphate Poisoned Patients. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective Organophosphate poisoning is a serious clinical entity and of considerable morbidity and mortality. Several factors have been identified to predict outcomes of organophosphate poisoning. This investigation aims to identify the relationship between the dynamics of serum cholinesterase (SChE) activity and mortality. Methods In this retrospective study, medical records of all patients with acute organophosphate poisoning were reviewed from January 2001 to December 2009. Clinical features, SChE activity, Glasgow Coma Scale, laboratory findings, electrocardiogram finding, management and their outcomes were examined. Results A total of 169 patients were included in this study. A total of 55 patients were enrolled. Deceased patients were 8 in number. Absence of an increase in SChE activity was related with mortality in organophosphate poisoned patients (p value=0.036; odds ratio, 5.445; 95% confidence interval, 1.121-26.551). Conclusions The absence of an increase in SChE activity is associated with higher mortality in organophosphate poisoning. The SChE dynamic activity can provide a guide to physicians in the evaluation and management of organophosphate poisoned patients.
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Cheon YJ, Pyun WB, Lee DH, Choi YH. A Case of Electrocardiographic Change Caused by Subarachnoid Haemorrhage Mimicking Acute Myocardial Infarction. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A 60-year-old woman was admitted to the emergency department due to syncope. The electrocardiogram (ECG) revealed normal sinus rhythm with ST segment elevation in leads I, II, and aVL. There was no stenosis or vasospasm in the coronary arteries. Transient electrocardiographic ST segment elevation which is indistinguishable from that associated with acute myocardial infarction has been reported in patients with subarachnoid hemorrhage (SAH). Until now no case was ever reported with the ECG finding with pattern of posterolateral myocardial infarction in SAH patients. So we describe a patient with SAH mimicking acute myocardial infarction.
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Lee DH, Kim CW, Kim SE, Lee SJ. An Analysis of Escalator-Related Injuries in an Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791001700302] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Escalator-related injuries have been considered uncommon and most likely to occur in children. In this study, we described the epidemiology of these injuries with focus on the aged population in order to determine whether escalators are safe for the aged, and to obtain information to help in preventing escalator-related injuries. Methods A prospective survey was taken to identify the number and nature of these injuries from May 2004 to December 2008. We enrolled patients who had sustained escalator-related injuries. A standard list of questions and answers were recorded by the emergency physician. A total of 104 questionnaires were completed during the study period. Results The average patient age was 59.2±24.0 years (range 1-94). There were 64 (61.5%) females. Only 11 (10.6%) were younger than 15 years old, and 59 (56.7%) were aged 65 or above; 35 (59.3%) of the aged people were injured while standing on the escalator. However, out of the 45 patients younger than age 65, 22 (48.9%) were injured from walking on a moving escalator. Head injury was the commonest site of injury overall and all were due to fall or slipping down. Conclusions Escalator-related injuries are not as rare as previously believed and the aged population 65 years old or above is the highest risk group. In particular, walking on a moving escalator was the main cause of injury in people under age 65. Therefore, primary prevention strategies are needed to prevent users from walking on escalators, especially young people, and educate aged people the safe utilization of escalators to prevent slip and fall injuries.
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Lee DH, Park TU, Kim CW. Haemopericardium and Liver Laceration Associated with Airbag Deployment. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490790901600408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Airbags and seat belts are safety devices in automobiles. First invented in the 1950s, they are now commonplace in most automobiles. However, a seat occupant may sustain unexpected injuries even if the airbag deploys in a car collision. We describe a patient who was suspected of simultaneously sustaining haemopericardium and liver laceration during the “punch out” and “membrane force” phases of airbag deployment. The patient's vital signs stabilised after an emergency pericardiocentesis was performed. In a car accident when high-energy injury is suspected despite airbag deployment, computed tomography of the chest and abdomen or echocardiography should be considered because of the possibility of abdominal solid organ and chest injury.
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Lee JH, Eo EK, Lee DH. Severe Hypokalaemic Paralysis due to Chronic use of Acanthopanax Senticosus Ingestion: A Case Report. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900605] [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] Open
Abstract
Acanthopanax senticosus is a traditional herb in China, Russia and many other Asian countries. However no comprehensive study has evaluated its side effects in humans. We report a rare case of hypokalaemic paralysis possibly attributed to A. senticosus induced pseudohyperaldosteronism.
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Lee DH, Choi YH. A Case of Pulmonary Pneumatocoele with Splenic Laceration Caused by Vehicular Accident. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791001700512] [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] Open
Abstract
Traumatic pneumatocoele is an uncommon complication, resulting from air trapping in an area of lung laceration, and may appear a few hours or even immediately after injury. Young adults and children are most commonly affected. Its clinical relevance lies in its rarity, which might mislead emergency physicians to perform unnecessary surgical intervention. We report a 10-year-old boy suffering from traumatic pneumatocoele with spleen laceration caused by blunt trauma. It is important for emergency physicians to be aware of this condition and of its benign course so as to avoid unnecessary operative procedures due to incorrect diagnosis.
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Lee DH, Kim CW, Kim SE, Lee SJ. Deep Venous Thrombosis Caused by a Huge Uterine Myoma. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900512] [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] Open
Abstract
Cases of deep venous thrombosis (DVT) and pulmonary thromboembolism (PTE) related to the isolated risk factor of uterine myoma are very rare. In a setting of emergency department (ED), it is unlikely that uterine myoma would be suspected as the primary cause of symptoms in a patient with thromboembolism. We presented a 44-year-old woman who visited the ED for DVT presenting with right lower leg swelling with an underlying cause of a huge uterine myoma. Various aetiologies, including obstetric and gynaecological causes (especially uterine myoma), should be considered in female patients visiting the ED with suspected DVT or PTE.
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Oh JH, Kim CW, Kim SE, Lee DH. Does the Bed Frame Deflection Occur along with Mattress Deflection during In-Hospital Cardiopulmonary Resuscitation? an Experiment Using Mechanical Devices. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791602300205] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objectives When we perform chest compression on a patient on a bed, the mattress and bed frame can be depressed together with the patient's chest. This study was conducted to assess whether bed frame deflection occurred during chest compressions. Methods We designed a firm bed (“bed like the ground,” BLG) to assess the bed frame deflection in the Stryker Trauma Stretcher (STS) and the ER stretcher cart (ER-SC). The STS included a soft mattress and the ER-SC a hard mattress. We performed 50 continuous chest compressions on the Resusci Anne Skill Reporter with CPRmeter in each experiment. The experiments were done in four settings. Test 1 included the BLG; test 2 included a mattress and backboard on each bed; test 3 included the mattress of each bed and a backboard on the BLG; and test 4 included the mattress of each bed on the BLG. We calculated the mattress and bed frame deflections using the gaps of compression depths between the values measured by Resusci Anne and CPRmeter. Results The mattress deflections of the STS and ER-SC mattress were determined to be 11.2 and 0.67 mm, respectively. The bed frame deflection for the STS and ER-SC were 0.95 and 5.17 mm, respectively. Conclusion The study confirms that bed frame deflection will occur when we perform chest compressions on the manikin lying on a bed. Additionally, the bed frame deflections differ depending on the type of bed. (Hong Kong j.emerg.med. 2016;23:35-41)
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Lee DH, Choi YH. A 67-Year-Old Man with Epistaxis, Melena, Gross Haematuria and Haemarthrosis. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791502200511] [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] Open
Abstract
Superwarfarins are widely used as rodenticides. They are similar to warfarin, but they are more potent and act longer. In case of poisoning, they cause severe bleeding, usually from multiple sites. Prolonged treatment with high doses of vitamin K and/or fresh frozen plasma (FFP) transfusions may be necessary. Awareness of the problem of superwarfarin intoxication among physicians remains low and cases may go undiagnosed for days or weeks, resulting in increased morbidity and even mortality. We presented a case of delayed diagnosis of superwarfarin ingestion. The patient presented to emergency department with epistaxis, melena, and gross haematuria. He was treated with vitamin K and the International Normalised Ratio (INR) dropped from >7.0 to 1.4. The patient was discharged. However, 3 weeks later, the patient presented with haemarthrosis. Blood investigation revealed INR value >7.0 again. The patient finally received treatment with FFP and vitamin K. This case illustrates the importance to consider superwarfarin ingestion when patients presented with poisoning with coagulopathy. (Hong Kong j.emerg.med. 2015;22:324-327)
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Kim SE, Lee SJ, Noh H, Lee DH, Kim CW. Is There Any Difference in Cardiopulmonary Resuscitation Performance According to Different Instructional Models of Cardiopulmonary Resuscitation Education for Junior and Senior High School Students? HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791101800602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective This study aims to determine whether or not cardiopulmonary resuscitation (CPR) skills differ according to different instructional models for CPR education and training for junior and senior high school students. Methods This was a prospective and randomised study including 519 junior and senior high school students. After the lecture on CPR, students practiced the skill on the manikin. Group 1 used model 1 and Group 2 used model 2 for practical training and practical skills and CPR performance quality were evaluated. Results Data from skill tests were analysed in 229 students in group 1 and 210 students in group 2. The total score of sequence skill tests was 17.8±2.0 points. During 2 cycles, no chest elevation was observed in 33.3% and was significantly lower in group 1. There were no significant differences in the frequency of proper ventilation and in ventilation volume between the 2 groups. Excessive ventilation was more frequently observed in group 1 and insufficient ventilation was observed more frequently in group 2. The percentage of the frequency of a proper chest compression rate was 80.5±31.2% and there were no significant differences in proper and insufficient depths, mean rate and recoil of the chest in chest compression between the 2 groups. Conclusions There were differences in CPR skills according to different CPR training manikins. Therefore, certain conditions seem to be considered in selection of instructional models for CPR psychomotor skills. (Hong Kong j.emerg.med. 2011;18:375-382)
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Jung MH, Kim SE, Lee DH, Hong JH, Hong JY, Kim CW. Cervical Emphysema and Pneumomediastinum following “Light Strangulation” Injury. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791702400207] [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] Open
Abstract
Pneumomediastinum is an uncommon radiographic finding resulting from various causes, such as trauma, infection and unknown causes. The pneumomediastinum due to minor trauma is rarely reported and treatment and diagnostic process is not established. We report on a 20-year-old female patient who initially presented with neck pain and dyspnoea following manual strangulation. Her chest X-ray and computed tomography (CT) of neck imaging showed subcutaneous emphysema and extensive pneumomediastinum, but pneumothorax was not shown. She was transferred to the thoracic surgery and admitted to the general ward. The patient's condition improved and she was discharged on the sixth hospital day. In conclusion, patients with pneumomediastinum following a minor strangulation injury can be observed alone without invasive testing or repeated imaging. CT scans are of great value for safe observation in determined patients and for the further evaluation of pneumomediastinum.
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Vallejo D, Lee SH, Lee D, Zhang C, Rapier C, Chessler SD, Lee AP. Cell-sized lipid vesicles for cell-cell synaptic therapies. TECHNOLOGY 2017; 5:201-213. [PMID: 29744376 PMCID: PMC5937847 DOI: 10.1142/s233954781750011x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cell-sized lipid vesicles (CLVs) have shown great promise for therapeutic and artificial cell applications, but their fragility and short shelf life has hindered widespread adoption and commercial viability. We present a method to circumvent the storage limitations of CLVs such as giant unilamellar vesicles (GUVs) and single-compartment multisomes (SCMs) by storing them in a double emulsion precursor form. The double emulsions can be stored for at least 8 months and readily converted into either GUVs or SCMs at any time. In this study, we investigate the interfacial parameters responsible for this morphological change, and we also demonstrate the therapeutic potential of CLVs by utilizing them to present a transmembrane protein, neuroligin-2, to pancreatic β-cells, forming cell-cell synapses that stimulate insulin secretion and cellular growth.
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Clutton G, Goonetilleke N, Council O, Xu Y, Warren J, Lee D, Fernandez M, Archin N, Kuruc J, Eron J, Gay C, Margolis D. CD8 T cells from HIV positive individuals on ART have a skewed differentiation phenotype and impaired proliferative responses. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30645-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Clayton KN, Lee D, Wereley ST, Kinzer-Ursem TL. Measuring biotherapeutic viscosity and degradation on-chip with particle diffusometry. LAB ON A CHIP 2017; 17:4148-4159. [PMID: 29115357 DOI: 10.1039/c7lc00507e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In the absence of efficient ways to test drug stability and efficacy, pharmaceuticals that have been stored outside of set temperature conditions are destroyed, often at great cost. This is especially problematic for biotherapeutics, which are highly sensitive to temperature fluctuations. Current platforms for assessing the stability of protein-based biotherapeutics in high throughput and in low volumes are unavailable outside of research and development laboratories and are not efficient for use in production, quality control, distribution, or clinical settings. In these alternative environments, microanalysis platforms could provide significant advantages for the characterization of biotherapeutic degradation. Here we present particle diffusometry (PD), a new technique to study degradation of biotherapeutic solutions. PD uses a simple microfluidic chip and microscope setup to calculate the Brownian motion of particles in a quiescent solution using a variation of particle image velocimetry (PIV) fundamentals. We show that PD can be used to measure the viscosity of protein solutions to discriminate native protein from degraded samples as well as to determine the change in viscosity as a function of therapeutic concentration. PD viscosity analysis is applied to two particularly important biotherapeutic preparations: insulin, a commonly used protein for diabetic patients, and monoclonal antibodies which are an emerging class of biotherapeutics used to treat a variety of diseases such as autoimmune disorders and cancer. PD-based characterization of solution viscosity is a new tool for biotherapeutic analysis, and owing to its easy setup could readily be implemented at key points of the pharmaceutical delivery chain and in clinical settings.
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Kato T, Jin C, Ujiie H, Lee D, Kosuke F, Wada H, Hu H, Weersink R, Chen J, Kaji M, Wilson B, Zheng G, Kaga K, Matsui Y, Yasufuku K. P1.12-002 Nanoparticle Targeted Folate Receptor 1 Enhanced Photodynamic Therapy for Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lee S, Lee S, Lee D, Jung K, Kim S. P1.13-006 The Value of F-18 FDG PET/CT-guided EBUS-TBNA in Nodal Staging of NSCLC. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vakharia PP, Nardone B, Schlosser BJ, Lee D, Serrano L, West DP. Reply to-chronic exposure to tetracyclines and subsequent diagnosis for non-melanoma skin cancer in a large Midwestern US population. J Eur Acad Dermatol Venereol 2017; 32:e159-e160. [PMID: 29080313 DOI: 10.1111/jdv.14662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Lee S, Ahn S, Lee Y, Lee D, Chung J. 118 Leucine-rich alpha-2-glycoprotein 1, which is down-regulated during skin aging, plays a role in the maintenance of extracellular matrix integrity. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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232
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Jeon JH, Seo Young H, Jeon Won K, Kim MS, Lee D, Ryu Seung M, Jang Dae S, Lee J. Chemical constituents from the groundnuts of Apios americana. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lee D, Li T, Hallman M, Chen D, Dong Y, Leachman B, Veltchev I, Greenberg R, Sobczak M, Horwitz E. Comparison of Toxicities in High Dose Rate Versus Low Dose Rate Brachytherapy as Monotherapy in Patients with Low to Favorable Intermediate Risk Prostate Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nichols A, Reilly J, Liu F, Bista P, Lee D, Webb S, Picarella D, Wood J, Yao M, Passini M, Estrella N. Edasalonexent (CAT-1004), an NF-kB inhibitor, enhances myotube formation in vitro, and increases exon-skipped sarcolemmal dystrophin in muscle of mdx mice. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kwon H, Cho A, Lee M, Lee D, Jeong D, Jong-Ho P, Heo S, Kwon S. Changes of shape and size of acute lacunar lesion in patients with high hemorrhagic risk: Picasso sub-study. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yoon S, Kwon Y, Lee D. Painful leg and moving ankle syndrome. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yoon K, Cho B, Kwak J, Lee D, Kwon D, Ahn S, Lee S, Kim C, Roh S, Cho Y. Optimization of Robotic Radiosurgery Dosimetric Planning Using a Dose-Limiting Auto-Shell Method for Brain Metastases. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kim YS, Song J, Lee D, Park Hyo J, Kim Dong K, Kim H. Gastroprotective effects of HT074, combined extracts of Inula britannica and Paeonia lactiflora on experimental gastric ulcer models in Sprague-Dawley rats. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lee D, Lord SW, Bourke JP, Shepherd EJ, Murray S, Das M. 49Patients on novel oral anticoagulants require higher doses of unfractionated heparin than those on warfarin to achieve a target act value during ablation of left atrial tachyarrhythmias. Europace 2017. [DOI: 10.1093/europace/eux283.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kim M, Kim E, Cho K, Lee D, Chung J. 451 Anacardic acid reduces lipogenesis in human differentiated adipocytes via inhibition of histone acetylation. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Duero Posada J, Moayedi Y, Zhou L, McDonald M, Ross H, Lee D, Bhatia S. ASSOCIATION BETWEEN CLUSTERED EMERGENCY ROOM VISITS AND OUTCOMES FOLLOWING AN ADMISSION FOR ACUTE DECOMPENSATED HEART FAILURE: A POPULATION-BASED STUDY. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Abdel-Qadir H, Austin P, Thavendiranathan P, Fang J, Fung K, Amir E, Lee D, Tu J, Anderson G. A RISK SCORE FOR PREDICTING CARDIOVASCULAR EVENTS AFTER EARLY STAGE BREAST CANCER. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Kim E, Lee D, Kim Y, Tian Y, Chung M, Chung J. 276 Adiponectin-based short peptides in the treatment of sensitive skin. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Song H, Kim Y, Park J, Park M, Lyu S, Koh Y, Heo J, Lee D, Park K. Biocompatible nanoparticle PLGA is a noble safe delivery system for embryo development and next generations. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Palmer D, Ross P, Shah T, Yu D, Shergill S, Patterson K, Brereton N, Lee D. Cost effectiveness of selective internal radiation therapy (SIRT) with Y-90 resin microspheres versus sorafenib in Barcelona Clinic Liver Cancer (BCLC) stage C hepatocellular carcinoma patients in the UK. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Leão R, Lee D, Figueiredo A, Komosa M, Zhang C, Apolónio J, Nunes N, Hermanns T, Wild P, Poyet C, Hamilton R, Castelo-Branco P, Tabori U. Integrated molecular signatures of TERT promoter deregulation predict disease outcomes in non-muscle invasive bladder cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx361.056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Lee D, Worth I. 75 years of Family Food, 50 years of the British Nutrition Foundation. NUTR BULL 2017. [DOI: 10.1111/nbu.12275] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim SH, Han WS, Jeong TY, Lee HR, Jeong H, Lee D, Shim SB, Kim DS, Ahn KJ, Yee KJ. Broadband Surface Plasmon Lasing in One-dimensional Metallic Gratings on Semiconductor. Sci Rep 2017; 7:7907. [PMID: 28801608 PMCID: PMC5554227 DOI: 10.1038/s41598-017-08355-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 07/10/2017] [Indexed: 11/09/2022] Open
Abstract
We report surface plasmon (SP) lasing in metal/semiconductor nanostructures, where one-dimensional periodic silver slit gratings are placed on top of an InGaAsP layer. The SP nature of the lasing is confirmed from the emission wavelength governed by the grating period, polarization analysis, spatial coherence, and comparison with the linear transmission. The excellent performance of the device as an SP source is demonstrated by its tunable emission in the 400-nm-wide telecom wavelength band at room temperature. We show that the stimulated emission enhanced by the Purcell effect enables successful SP lasing at high energies above the gap energy of the gain. We also discuss the dependence of the lasing efficiency on temperature, grating dimension, and type of metal.
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Murphy M, Lee D. Dose of Anti-D Immunoglobulin for the Prevention of RhD Immunisation after RhD-Incompatible Platelet Transfusions. Vox Sang 2017. [DOI: 10.1159/000462387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Lee D, Fontugne J, Gumpeni N, Park K, MacDonald TY, Robinson BD, Sboner A, Rubin MA, Mosquera JM, Barbieri CE. Molecular alterations in prostate cancer and association with MRI features. Prostate Cancer Prostatic Dis 2017; 20:430-435. [PMID: 28762374 DOI: 10.1038/pcan.2017.33] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 05/22/2017] [Accepted: 06/04/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Multiparametric magnetic resonance imaging (mpMRI) has been increasingly used for prostate cancer (PCa). Recent studies identified distinct molecular subclasses of PCa with recurrent genomic alterations. However, the associations between molecular alterations in PCa and characteristics on mpMRI are unknown. Therefore, the objective of this study was to investigate recurrent molecular alterations in PCa and their associations with mpMRI features. METHODS Sixty-two PCa nodules >0.5 cm had a preoperative mpMRI. Nodules were evaluated for ERG rearrangement, PTEN deletion, SPINK1 overexpression, SPOP mutation and CHD1 deletion. Each PCa focus was matched to the corresponding location on mpMRI. Lesions were scored by single observer according to the PI-RADSv2 scale. RESULTS Of the 62 nodules, 22 (35.5%) were ERG positive, 6 (9.7%) had SPINK1 overexpression, 6 (9.7%) had SPOP mutations, 4 (6.5%) had CHD1 deletions and 1 (1.6%) had PTEN deletion. All of the nodules with CHD1 deletions were not visible on mpMRI (P=0.037). All of the nodules with SPINK1 overexpression were visible on mpMRI, although the association was not statistically significant (P=0.06). There were no significant associations between any molecular alteration with the severity of the PI-RADS scores (all P>0.05). CONCLUSIONS This investigation represents the first description of an association between recurrent molecular alterations and the characterization of PCa nodules on mpMRI. This study can be considered hypothesis-generating for future studies to rigorously evaluate the association of specific PCa molecular subclasses with imaging features and potentially define specific subsets of PCa for which the utility of MRI is higher or lower.
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