101
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Jeh SU, Yoon S, Seo DH, Lee SW, Lee C, Choi SM, Kam SC, Hwa JS, Chung KH, Hyun JS. Relationship between serum testosterone and nocturia in men without benign prostate enlargement. Andrology 2016; 5:58-62. [PMID: 27636882 DOI: 10.1111/andr.12270] [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: 04/01/2016] [Revised: 07/11/2016] [Accepted: 07/18/2016] [Indexed: 02/05/2023]
Abstract
Recent studies have focused on the relationship between nocturia and serum testosterone because testosterone is thought to be an important factor of prostate growth. However, it remains unclear whether altered serum concentrations of testosterone is associated with an increased risk of nocturia because patients who were taking diuretics or who had a large prostate, which may precipitate nocturia, were not excluded from most previous studies. We analyzed the clinical records of 596 non-benign prostatic enlargement (BPE) male patients to explore the relationship between serum total testosterone and nocturia. All patients were evaluated using a serum prostate-specific antigen (PSA) assay, measurement of serum total testosterone, transrectal ultrasonography, uroflowmetry, and a compilation of the International Prostate Symptom Score (IPSS) and International Index of Erectile Function (IIEF) questionnaires. Nocturia was defined as ≥2 nocturnal voiding episodes. The number of nocturia episodes was assessed using IPSS question 7. To evaluate the effect of serum testosterone on nocturia, multivariate regression analysis was performed including the covariates of age, IPSS, IIEF score, body mass index, PSA, prostate volume, and maximal urine flow rate. Based on multivariate linear analysis, serum testosterone level was not significantly associated with the severity of nocturia. However, with regard to the relationship between prevalence of nocturia and serum testosterone, prevalence of nocturia was significantly positively associated with age (OR = 1.048, p = 0.005), total IPSS (OR = 1.217, p < 0.001), and testosterone level (OR = 1.150, p = 0.041). Therefore, in men without an enlarged prostate, testosterone may play an opposing role in the etiology of nocturia.
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102
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Rehbein S, Knaus M, Visser M, Rauh R, Yoon S. Control of parasitic infection with ivermectin long-acting injection (IVOMEC® GOLD) and production benefit in first-season grazing cattle facing a high-level larval challenge in Germany. Parasitol Res 2016; 115:4639-4648. [PMID: 27630102 DOI: 10.1007/s00436-016-5256-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/07/2016] [Indexed: 01/22/2023]
Abstract
Gastrointestinal and pulmonary nematode infections are affecting the health and productivity of grazing cattle worldwide. To evaluate the effects of a single treatment with ivermectin long-acting injection (IVM LAI; IVOMEC® GOLD, Merial; 3.15 % ivermectin w/v) in first-grazing season cattle, two studies were conducted under continued stocking conditions for 84 or 100 days in Bavaria, Germany. Each study involved 68 naturally infected, approximately 4- to 6-month-old Brown Swiss bull calves. Animals were blocked based on pretreatment body weights. Within each block of four animals, animals were randomly assigned to treatments: one to saline (control) and three to IVM LAI. Treatments were injected at 1 mL/50 kg body weight subcutaneously in front of the shoulder. Animals in both studies were managed as one herd each grazing together. Cattle were weighed and fecal samples were collected pretreatment and at intervals thereafter for determination of weight gain and treatment efficacy, respectively. Fecal examination including composite fecal culture indicated the presence of nematodes of the genera Cooperia (dominating), Haemonchus, Nematodirus, Ostertagia, Strongyloides, Trichostrongylus, Trichuris, and Dictyocaulus, and Moniezia cestodes in the cattle. Following treatment, IVM LAI-treated cattle did not shed any Dictyocaulus larvae for 84 days while controls continued to pass larvae. Compared to the controls, IVM LAI-treated cattle had significantly (p < 0.01) lower strongylid egg counts at each occasion. Percentage reductions were ≥94 % up to 70 days after treatment and were ≥83.9 and 58.9 % at 84 and 100 days. Over the 84- or 100-day study periods, IVM LAI-treated cattle gained significantly more weight than the controls: 22.7 and 12.4 kg, respectively. The two studies demonstrated a high efficacy of IVM LAI against gastrointestinal and pulmonary nematode infections under field conditions in Germany which was associated with significant benefit as to weight gain.
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103
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Chang E, Yoon S, Kim J, Hur Y, Yu E, Lee W, Choi Y. Transcriptomic analysis of isolated single primordial and primary follicle using RNA-Seq in human. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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104
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Meeks V, Johnson M, Salzman R, Yoon S. Developing an oral health care curriculum for Rwandan primary school-aged
children using the classroom teachers in a non-traditional manner to promote
life-long oral health knowledge and practices. Ann Glob Health 2016. [DOI: 10.1016/j.aogh.2016.04.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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105
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Salzman R, Yoon S, Mandela E, Nyirinkwaya B, Meeks V. Developing an oral health education work plan utilizing a non-dental
professional workforce in resource challenged communities in Rwanda:
University of Maryland Baltimore Global Health interprofessional program
experiences. Ann Glob Health 2016. [DOI: 10.1016/j.aogh.2016.04.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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106
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Cho J, Sim KM, Yoon S, Ha J, Chung DS. Schottky barrier-gated high performance photodetectors using a water-borne polymeric colloid. NANOSCALE 2016; 8:14643-14649. [PMID: 27437617 DOI: 10.1039/c6nr03949a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Here, we demonstrate the synergetic application of a cationic surfactant (CTAB) for the fabrication of a fast response organic photoconductor via an environmentally benign fabrication process. A water-borne colloid of the semiconducting polymer PBTTT was fabricated via a mini-emulsion process with CTAB as the surfactant, and deposited onto a Au-patterned substrate to complete the photoconductor device geometry. Due to the preferential adsorption of the ammonium cation of the CTAB molecules onto the Au surface, a dipole layer was created and thus the work function of Au was significantly reduced, as confirmed by ultraviolet photoelectron spectroscopic studies. We show that the resulting Schottky barrier between Au-CTAB and PBTTT can be used as an artificial 'gate' for a trap-limited photoconductive mechanism, leading to a fast temporal response of the photoconductor without sacrificing the efficient photoconductive gain-generating mechanism. As a result, a high detectivity of 4.92 × 10(10) Jones, as well as a high gain of 107, can be realized from the PBTTT-based organic photoconductor. This result opens the possibility of fabricating high performance and simple structured organic photodetectors via a nontoxic fabrication process.
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107
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Lopes MA, Lopes EM, Yoon S, Mendes JFF, Goltsev AV. Synchronization in the random-field Kuramoto model on complex networks. Phys Rev E 2016; 94:012308. [PMID: 27575149 DOI: 10.1103/physreve.94.012308] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Indexed: 11/07/2022]
Abstract
We study the impact of random pinning fields on the emergence of synchrony in the Kuramoto model on complete graphs and uncorrelated random complex networks. We consider random fields with uniformly distributed directions and homogeneous and heterogeneous (Gaussian) field magnitude distribution. In our analysis, we apply the Ott-Antonsen method and the annealed-network approximation to find the critical behavior of the order parameter. In the case of homogeneous fields, we find a tricritical point above which a second-order phase transition gives place to a first-order phase transition when the network is either fully connected or scale-free with the degree exponent γ>5. Interestingly, for scale-free networks with 2<γ≤5, the phase transition is of second-order at any field magnitude, except for degree distributions with γ=3 when the transition is of infinite order at K_{c}=0 independent of the random fields. Contrary to the Ising model, even strong Gaussian random fields do not suppress the second-order phase transition in both complete graphs and scale-free networks, although the fields increase the critical coupling for γ>3. Our simulations support these analytical results.
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108
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Miles D, Yoon S, Adamovics J, Oldham M. TH-CD-201-05: Characterization of a Novel Light-Collimating Tank Optical-CT System for 3D Dosimetry. Med Phys 2016. [DOI: 10.1118/1.4958127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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109
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Wang A, Paysan P, Brehm M, Maslowski A, Lehmann M, Messmer P, Munro P, Yoon S, Star-Lack J, Seghers D. WE-AB-207A-08: BEST IN PHYSICS (IMAGING): Advanced Scatter Correction and Iterative Reconstruction for Improved Cone-Beam CT Imaging On the TrueBeam Radiotherapy Machine. Med Phys 2016. [DOI: 10.1118/1.4957761] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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110
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Lambson K, Lafata K, Schaal J, Miles D, Yoon S, Liu W, Oldham M, Cai J. SU-F-T-10: Validation of ELP Dosimetry Using PRESAGE Dosimeter: Feasibility Test and Practical Considerations. Med Phys 2016. [DOI: 10.1118/1.4956144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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111
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Yoon S, Langloss B, Boss M, Birer S, Dewhirst M, Oldham M. SU-G-IeP4-08: Initial Investigations of Up-Converting Nanoparticles (UCNP) for 3D Tissue Imaging in Optical-ECT. Med Phys 2016. [DOI: 10.1118/1.4957103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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112
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Oldham M, Yoon S, Meng B, Fathi Z, Beyer W, Adamson J, Alcorta D, Osada T, Lyerly K, Dewhirst M, Fecci P, Walder H, Spector N. WE-FG-BRA-01: Cancer Treatment Utilizing Photo-Activation of Psoralen with KV X-Rays. Med Phys 2016. [DOI: 10.1118/1.4957901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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113
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Yoon S, Boss M, Birer S, Dewhirst M, Oldham M. TH-EF-207A-06: High-Resolution Optical-CT/ECT Imaging of Unstained Mice Femur, Brain, Spleen, and Tumor. Med Phys 2016. [DOI: 10.1118/1.4958278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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114
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Chang K, Kim M, Kwak J, Kim S, Ji Y, Cho B, Yoon S, Lee S. SU-F-T-580: New Tumor Modeling Using 3D Gel Dosimeter for Brain Stereoctactic Radiotherpy (SRT). Med Phys 2016. [DOI: 10.1118/1.4956765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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115
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Olson SW, Yoon S, Baker T, Prince LK, Oliver D, Abbott KC. Longitudinal plasma metanephrines preceding pheochromocytoma diagnosis: a retrospective case-control serum repository study. Eur J Endocrinol 2016; 174:289-95. [PMID: 26671972 DOI: 10.1530/eje-15-0651] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 12/15/2015] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Plasma metanephrines (PMN) are highly sensitive for diagnosis of pheochromocytoma, but the natural history of PMN before pheochromocytoma diagnosis has not been previously described. The aim of the study was to compare the progression of PMN before pheochromocytoma diagnosis to matched healthy and essential hypertension disease controls. DESIGN A retrospective case-control Department of Defense Serum Repository (DoDSR) study. METHODS We performed a DoDSR study that compared three longitudinal pre-diagnostic PMN for 30 biopsy-proven pheochromocytoma cases to three longitudinal PMN for age, sex, race, and age of serum sample matched healthy and essential hypertension disease controls. Predominant metanephrine (MN) or normetanephrine (NMN) production was identified for each case and converted to a percentage of the upper limit of normal to allow analysis of all cases together. PMN were measured by Quest Diagnostics. RESULTS The predominant plasma metanephrine (PPM) was >100 and 300% of the upper limit of normal a median of 6.6 and 4.1 years before diagnosis respectively. A greater percentage of pheochromocytoma patients had a PPM >100 and >300% of the upper limit of normal compared with combined healthy and essential hypertension disease controls <2, 2-8, and >8 years prior to diagnosis. For patients with a baseline PPM 90-300% of the upper limit of normal, a 25% rate of rise per year was 100% specific for pheochromocytoma. CONCLUSIONS PPMs elevate years before diagnosis which suggests that delayed diagnoses are common. For mild PMN elevations, follow-up longitudinal PMN trends may provide a highly specific and economical diagnostic tool.
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Ryu S, Huh IS, Cho EY, Cho Y, Park T, Yoon S, Joo Y, Hong K. Association Study of 60 Candidate Genes with Antipsychotic-induced Weight Gain in Schizophrenia Patients. PHARMACOPSYCHIATRY 2016; 49:51-6. [DOI: 10.1055/s-0035-1569267] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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117
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Kang BW, Seo AN, Yoon S, Bae HI, Jeon SW, Kwon OK, Chung HY, Yu W, Kang H, Kim JG. Prognostic value of tumor-infiltrating lymphocytes in Epstein-Barr virus-associated gastric cancer. Ann Oncol 2015; 27:494-501. [PMID: 26673353 DOI: 10.1093/annonc/mdv610] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 12/09/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND This study explored the prognostic impact of tumor-infiltrating lymphocytes (TILs) and investigated whether three histologic subtypes (lymphoepithelioma-like carcinoma, carcinoma with Crohn's disease-like lymphoid reaction, and conventional-type adenocarcinoma) could stratify a prognostic subset for patients with Epstein-Barr virus (EBV)-associated gastric cancer (EBVaGC). MATERIALS AND METHODS After reviewing 1318 consecutive cases of surgically resected or endoscopic submucosal dissected gastric cancers, 120 patients were identified as EBV-positive using EBV-encoded RNA in situ hybridization. The evaluation of the percentage of intratumoral (iTu-) and stromal (str-) TILs was carried out, and the cases were also subclassified into three histologic subtypes as noted above. RESULTS Among the 120 patients, 73 patients (60.8%) and 60 patients (50.0%) were determined as str-TIL-positive and iTu-TIL-positive, respectively. In a univariate analysis, str-TIL-positivity was significantly associated with longer recurrence-free survival (RFS; P = 0.002) and disease-free survival (DFS; P = 0.008), yet not overall survival (OS; P = 0.145). While iTu-TIL-positivity has a tendency of favorable outcome indicator for DFS and OS, but statistically significant differences were not shown, respectively (RFS, P = 0.058; DFS, P = 0.151; OS, P = 0.191). In a multivariate analysis using a Cox proportional hazard model adjusted for age, pTNM stage, lymphatic invasion, perineural invasion, and venous invasion; histologic subtype, WHO classification, and str-TIL-positivity were independently or tentatively associated with favorable RFS (hazard ratio [HR] = 12.193, 95% confidence interval [95% CI] 1.039-143.055, P = 0.047) or DFS (HR = 4.836, 95% CI 0.917-25.525, P = 0.063). CONCLUSION The histologic subclassification and TILs can be used to predict RFS and DFS for patients with EBVaGC.
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Kang B, Kim J, Chae Y, Lee S, Yoon S, Choi G. 173P Impact of genetic variation in microRNA binding site on susceptibility to colorectal cancer. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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119
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Kim J, Kang B, Chae Y, Yoon S. 159P Prognostic relevance of genetic variants involved in immune checkpoint in patients with colorectal cancer. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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120
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Lyoo IK, Yoon S, Kim TS, Lim SM, Choi Y, Kim JE, Hwang J, Jeong HS, Cho HB, Chung YA, Renshaw PF. Predisposition to and effects of methamphetamine use on the adolescent brain. Mol Psychiatry 2015; 20:1516-24. [PMID: 25666756 PMCID: PMC5653271 DOI: 10.1038/mp.2014.191] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 11/13/2014] [Accepted: 12/08/2014] [Indexed: 01/16/2023]
Abstract
Adolescence is a period of heightened vulnerability both to addictive behaviors and drug-induced brain damage. Yet, only limited information exists on the brain mechanisms underlying these adolescent-specific characteristics. Moreover, distinctions in brain correlates between predisposition to drug use and effects of drugs in adolescents are unclear. Using cortical thickness and diffusion tensor image analyses, we found greater and more widespread gray and white matter alterations, particularly affecting the frontostriatal system, in adolescent methamphetamine (MA) users compared with adult users. Among adolescent-specific gray matter alterations related to MA use, smaller cortical thickness in the orbitofrontal cortex was associated with family history of drug use. Our findings highlight that the adolescent brain, which undergoes active myelination and maturation, is more vulnerable to MA-related alterations than the adult brain. Furthermore, MA-use-related executive dysfunction was greater in adolescent MA users than in adult users. These findings may provide explanation for the severe behavioral complications and relapses that are common in adolescent-onset drug addiction. Additionally, these results may provide insights into distinguishing the neural mechanisms that underlie the predisposition to drug addiction from effects of drugs in adolescents.
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121
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Yoon S, Jeong H, Kim H, You T. A case of significant refractive change in nodular posterior scleritis. Acta Ophthalmol 2015. [DOI: 10.1111/j.1755-3768.2015.0437] [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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122
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Yoon S, Eum J, Jang H, Yang N, Lee J, Shin D, Chang E, Choi Y, Yoon T, Lee D, Lee W. Artificial primordial follicles activation by peroxisome proliferator-activated receptor gamma modulator on neonatal mouse ovary in vitro. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.798] [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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123
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Choi Y, Yoon S, Park M, Kim R, Kim M, Ryu S, Lee W, Yoon T, Ko J. Deficiency of epigenetic regulator CFP1 in the oocyte blocks the decondensation of the male pronucelus during fertilization. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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124
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Yoon S, Bogdanov K, Kovalenko A, Wallach D. Necroptosis is preceded by nuclear translocation of the signaling proteins that induce it. Cell Death Differ 2015; 23:253-60. [PMID: 26184911 PMCID: PMC4716306 DOI: 10.1038/cdd.2015.92] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 05/19/2015] [Accepted: 06/01/2015] [Indexed: 12/15/2022] Open
Abstract
A signaling pathway that induces programmed necrotic cell death (necroptosis) was reported to be activated in cells by several cytokines and various pathogen components. The major proteins participating in that pathway are the protein kinases RIPK1 and RIPK3 and the pseudokinase mixed lineage kinase domain-like protein (MLKL). Recent studies have suggested that MLKL, once activated, mediates necroptosis by binding to cellular membranes, thereby triggering ion fluxes. However, our knowledge of both the sequence of molecular events leading to MLKL activation and the subcellular sites of these events is fragmentary. Here we report that the association of MLKL with the cell membrane in necroptotic death is preceded by the translocation of phosphorylated MLKL, along with RIPK1 and RIPK3, to the nucleus.
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Jeong C, Kwak J, Ahn S, Kim J, Park J, Yoon S, Cho B. SU-E-T-178: Clinical Feasibility of Multi-Leaf Collimator Based Dynamic Wedge. Med Phys 2015. [DOI: 10.1118/1.4924539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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