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Lin SH, Luo HL, Chen YT, Cheng YT. Using Hematuria as Detection of Post-kidney Transplantation Upper Urinary Tract Urothelial Carcinoma Is Associated With Delayed Diagnosis of Cancer Occurrence. Transplant Proc 2018; 49:1061-1063. [PMID: 28583527 DOI: 10.1016/j.transproceed.2017.03.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Kidney transplantation (KT) is an important renal replacement therapy for end-stage renal disease (ESRD). The incidence of upper urinary tract urothelial carcinoma (UTUC) is relatively higher in Taiwan. According to our institutional database, early onset of post-KT UTUC is not uncommon. Early detection of post-KT UTUC is an important issue to improve oncologic outcome. Because painless hematuria is a common symptom for UTUC, this study analyzes whether using hematuria as post-KT UTUC screening delayed cancer diagnosis or not. METHODS From 2005 to 2012, 128 ESRD patients were found to have UTUCs. There were 28 patients who underwent KT and were regularly followed up at our institution. All the patients underwent standard nephroureterectomy. RESULTS In ESRD patients with UTUC, the post-KT group revealed significantly less gross hematuria and microscopic hematuria at presentation compared with the non-KT group (43% versus 76%, P = .001 and 64% versus 86%, P = .011). For those patients with gross hematuria, non-organ-confined UTUC occurred more in the post-KT group compared with the non-KT group (42% versus 12%, P = .009). For those patients with microscopic hematuria, non-organ-confined UTUC occurred more in the post-KT group compared with the non-KT group with borderline significance (33% versus 16%, P = .085). CONCLUSIONS According to our observation, using gross or microscopic hematuria as detection of post-KT UTUC is associated with delayed diagnosis of cancer occurrence. Closer upper urinary tract image study such as sonography may help earlier cancer screening.
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Affiliation(s)
- S H Lin
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - H L Luo
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y T Chen
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y T Cheng
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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Abstract
Composite electrodes consisting of cathode particles and an ion-conducting phase can address the limited ion accessibility of the cathode in high-energy all-solid-state lithium batteries. In this Letter, we discuss the microstructure-conductivity relationship in an electronic-ionic composite with a focus on lithium ion conductivity. This study is the first step toward further understanding of electrochemical reactions in all solid multiphase systems.
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Affiliation(s)
- Long Zhang
- Department of Chemical and Materials Engineering, University of Kentucky , Lexington, Kentucky 40506, United States
| | - Xiaowen Zhan
- Department of Chemical and Materials Engineering, University of Kentucky , Lexington, Kentucky 40506, United States
| | - Y T Cheng
- Department of Chemical and Materials Engineering, University of Kentucky , Lexington, Kentucky 40506, United States
| | - Mona Shirpour
- Department of Chemical and Materials Engineering, University of Kentucky , Lexington, Kentucky 40506, United States
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3
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An BQ, Jiang M, Cheng YT, Yuan C, Lu LL, Xin YN, Xuan SY. [Influence of leptin receptor gene K109R polymorphism on the risk of nonalcoholic fatty liver disease and its interaction with PNPLA3 I148M polymorphism]. Zhonghua Gan Zang Bing Za Zhi 2016; 24:358-362. [PMID: 27470889 DOI: 10.3760/cma.j.issn.1007-3418.2016.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the influence of leptin receptor (LEPR) gene K109R polymorphism on the risk of nonalcoholic fatty liver disease (NAFLD) and its interaction with PNPLA3 I148M polymorphism in the Han Chinese population in Qingdao, China. METHODS Blood samples were collected from 296 NAFLD patients and 321 healthy controls, and the genotypes of these patients were determined by PCR and genotyping. Related statistical analyses were performed to compare genotypes, alleles, and clinical data between the two groups. Generalized multifactor dimensionality reduction (GMDR) was used to investigate the interaction between LEPR K109R and PNPLA3 I148M genes. RESULTS The distribution of LEPR K109R genotypes and alleles showed no significant differences between the NAFLD group and the control group (P > 0.05). PNPLA3 I148M gene polymorphisms were closely associated with the risk of NAFLD, and the risk of NAFLD in G mutant gene carriers was 2.07 times that in patients who did not carry this gene (OR = 2.07, 95% CI 1.423-3.013, P < 0.001). The joint action of LEPR K109R and PNPLA3 I148M significantly increased the risk of NAFL (OR = 3.393, 95% CI 1.856-6.201, P < 0.001). CONCLUSION In the Han Chinese population in Qingdao, LEPR K109R gene polymorphism is not associated with the risk of NAFLD, but its interaction with PNPLA3 I148M polymorphism can significantly increase the risk of NAFLD.
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Affiliation(s)
- B Q An
- Department of Gastroenterology, Qingdao Medical College of Nanjing Medical University, Qingdao 266021, China; Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao 266021, China
| | - M Jiang
- Digestive Disease Key Laboratory of Qingdao, Qingdao 266021, China
| | - Y T Cheng
- Department of Gastroenterology, Qingdao Medical College of Nanjing Medical University, Qingdao 266021, China
| | - C Yuan
- Department of Gastroenterology, Qingdao Medical College of Nanjing Medical University, Qingdao 266021, China
| | - L L Lu
- Digestive Disease Key Laboratory of Qingdao, Qingdao 266021, China
| | - Y N Xin
- Department of Gastroenterology, Qingdao Medical College of Nanjing Medical University, Qingdao 266021, China; Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao 266021, China; Digestive Disease Key Laboratory of Qingdao, Qingdao 266021, China
| | - S Y Xuan
- Department of Gastroenterology, Qingdao Medical College of Nanjing Medical University, Qingdao 266021, China; Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao 266021, China; Digestive Disease Key Laboratory of Qingdao, Qingdao 266021, China
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Liu Y, Cheng YT, Chang JC, Chao SF, Chang BS. Extracorporeal membrane oxygenation to support prolonged conventional cardiopulmonary resuscitation in adults with cardiac arrest from acute myocardial infarction at a very low-volume centre. Interact Cardiovasc Thorac Surg 2010; 12:389-93. [DOI: 10.1510/icvts.2010.256388] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Abstract
A brief historical perspective and a review of the current research on amorphous or glassy materials are presented. Glass formation by natural processes and by laboratory synthesis techniques is described. Recent efforts to characterize and model the atomic scale structure of amorphous phases are surveyed. The relation between amorphous and liquid states is emphasized in a discussion of thermodynamics and kinetics. The topic of crystal-to-glass transformation in the solid state and the related issue of crystal stability and melting are discussed.
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Chang CW, Kuo LC, Cheng YT, Su FC, Jou IM, Sun YN. Reliable model-based kinematics analysis system for articulated fingers. Annu Int Conf IEEE Eng Med Biol Soc 2007; 2007:4675-4678. [PMID: 18003049 DOI: 10.1109/iembs.2007.4353383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
the kinematical measurement is regarded as the major indicator of the kinetic functions. In this study, we focused on developing a novel measurement method for kinematics of articulated finger in motion by using biomechanical model prediction and real-time video-based image analysis technique. In contrast to the marker-based system, the proposed 3D model provides more information, appearing on multiple projected 2D images, to estimate more reliable finger kinematics. The proposed method is compact, fast, and can be operated with X-ray fluoroscopy simultaneously. It means that the system provides the capability of synchronous validation between motion video and X-ray fluoroscopy. The proposed system was implemented on a personal computer and can be a new tool in diagnosis and rehabilitation for hand diseases.
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Affiliation(s)
- Cheung-Wen Chang
- Department of Computer Science & Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC
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Chien JH, Cheng YT, Wang PY, Yang CR, Chen PH. WITHDRAWN: A radio frequency biosensor with gold nanoparticle probes. Biosens Bioelectron 2006:S0956-5663(06)00191-6. [PMID: 16697634 DOI: 10.1016/j.bios.2006.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2005] [Revised: 04/04/2006] [Accepted: 04/04/2006] [Indexed: 11/21/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- J H Chien
- Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan ROC
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Abstract
OBJECTIVE To describe the emergency department (ED) management of isolated mild traumatic brain injury (TBI) in the USA and to examine variation in care across age and insurance types. METHODS A secondary analysis of ED visits for isolated mild TBI in the National Hospital Ambulatory Medical Care Survey 1998-2000 was performed. Mild TBI was defined by International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9) codes for skull fracture, concussion, intracranial injury (unspecified), and head injury (unspecified). Available ED care variables were analysed by patient age and insurance categories using multivariate logistic regression. RESULTS The incidence of isolated mild TBI cases attending ED was 153,296 per year, or 56.4/100,000 people. Of the patients with isolated mild TBI, 44.3% underwent computed tomography, 23.9% underwent other non-extremity, non-chest x rays, 17.1% received wound care and 14.1% received intravenous fluids. However, only 43.8% had an assessment of pain. Of those with documented pain, only 45.5% received analgesics in the ED. Nearly 38% were discharged without recommendations for specific follow up. Several aspects of ED care varied by age but not by insurance type. CONCLUSION Substantial ED resources are devoted to the care of isolated mild TBI. The present study identified deficiencies in and variation around several important aspects of ED care. The development of guidelines specific for mild TBI could reduce variation and improve emergency care for this injury.
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Affiliation(s)
- J J Bazarian
- Department of Emergency Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA.
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Abstract
Emphysematous pyelonephritis in renal transplant allograft occurs rarely. This is a case report on a 55-year-old man who had renal transplantation in 1983 and developed post-transplant diabetes mellitus in 1984. This patient suffered from fever and right low abdominal pain and was subsequently diagnosed as emphysematous pyelonephritis by computerized tomography. He was successfully treated with percutaneous drainage, percutaneous nephrostomy and parenteral antibiotics. Although the management of emphysematous pyelonephritis has been a subject of controversy, we recommend consideration of renal preservation in patients with few risk factors, especially in those patients presenting with chronic renal insufficiency, solitary kidney and transplant allograft.
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Affiliation(s)
- Y T Cheng
- Department of Urology, Chang Gung Memorial Hospital, Kaohsiung, Taiwan
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10
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Abstract
Small-angle neutron scattering (SANS) measurements have been performed on long-flight-path pinhole-collimation SANS instruments using, as a two-dimensional position-sensitive detector, both a neutron imaging plate, incorporating gadolinium, and a two-step transfer method, with dysprosium foil as the image transfer medium. The measurements are compared with corresponding data taken using conventional position-sensitive gas proportional counters on the SANS instruments in order to assess the viability of the imaging techniques. The imaging plates have pixel sizes of about two orders of magnitude smaller than those of the gas proportional counter. The reduced pixel size provides definite advantages over the gas counter in certain specific situations, namely when limited space necessitates a short sample-to-detector distance, when only small samples (comparable in size to the detector pixels) are available, or when used in conjunction with focusing beam optics.
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Cheng YT, Huang CT, Leu HS, Chen JS, Kiu MC. Central nervous system infection due to Clostridium septicum: a case report and review of the literature. Infection 1997; 25:171-4. [PMID: 9181386 DOI: 10.1007/bf02113607] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A patient with end stage breast cancer was admitted to hospital due to fever, chills, multiply eroded discharging wounds, and sudden onset of left hemiparesis. Clostridium septicum bacteremia and brain abscess were diagnosed. The patient was treated successfully with intravenous penicillin and clindamycin and stereotactic aspiration of the abscess. Eleven cases of C. septicum central nervous system infection are reviewed. They showed an extremely fulminant course and high fatality. Nevertheless, some relationship seems to exist between outcome and type of brain lesion. Hemolytic-uremic syndrome associated with central nervous system infection is also discussed, because all these cases in the literature were due to this organism. Early diagnosis and aggressive treatment, including surgical drainage and appropriate antibiotics, are the key to improving the prognosis. A long-term prophylactic oral antimicrobial agent is suggested for patients who survive this infection.
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Affiliation(s)
- Y T Cheng
- Div. of Infectious Diseases, Chang Gung Memorial Hospital, Taipei, Taiwan, Republic of China
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12
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Cheng YT, Meng WJ. Epitaxial growth of Omega-Titanium on the (111) surface of Alpha-Iron. Phys Rev Lett 1996; 76:3999-4002. [PMID: 10061166 DOI: 10.1103/physrevlett.76.3999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Cheng YT, Li YL, Wu JD, Long SB, Tzai TS, Tzeng CC, Lai MD. Overexpression of MDM-2 mRNA and mutation of the p53 tumor suppressor gene in bladder carcinoma cell lines. Mol Carcinog 1995; 13:173-81. [PMID: 7619220 DOI: 10.1002/mc.2940130307] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
To investigate the importance of oncogenes and tumor suppressor genes in bladder carcinogenesis, we determined the status of the expression of the MDM-2 and p53 genes and genetic alterations in the p53 gene in five bladder carcinoma cell lines and one kidney urothelial carcinoma cell line. Overexpression of MDM-2 mRNA was observed in three bladder carcinoma cell lines, J82, SCaBER, and BFTC-905. Amplification of the MDM-2 gene was not detected in any of the six cell lines by southern analysis. The deletion in the p53 gene was observed in J82, and point mutation was detected in J82 and BFTC-909, the kidney urothelial carcinoma cell line. In contrast, no mutations were found in codons 12, 13, and 61 in the Ha-ras and Ki-ras genes in these six cell lines. These results indicate that alterations in the p53-regulated pathway are important in bladder carcinogenesis.
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Affiliation(s)
- Y T Cheng
- Department of Biochemistry, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
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14
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Cheng YT, Chen YL, Meng WJ, Li Y. Formation of twins during epitaxial growth of alpha -iron films on silicon (111). Phys Rev B Condens Matter 1993; 48:14729-14732. [PMID: 10007912 DOI: 10.1103/physrevb.48.14729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Watters JK, Cheng YT, Lorvick JJ. Drug-use profiles, race, age, and risk of HIV infection among intravenous drug users in San Francisco. Int J Addict 1991; 26:1247-61. [PMID: 1787019 DOI: 10.3109/10826089109062158] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We examined the relationship of HIV serostatus to drug use profile, high risk behavior, drug treatment status, and demographic characteristics of 505 intravenous drug users (IVDUs) in San Francisco. We found five identifiable drug-injection profiles described as Omnijector, Primarily Heroin, Primarily Heroin/Cocaine, Primarily Cocaine, and Primarily Speed which fell into "higher risk" and "lower risk" categories in relation to HIV seroprevalence of members (17.0 and 9.8%), respectively. This difference was not significant when effects of race were held constant (adjusted OR = 1.66, 95% CI = 0.91, 3.01). In logistic regression analysis, only Black race and age under 30 were significant predictors of HIV seropositivity (OR = 2.95, 95% CI = 1.57, 5.52 and OR = 2.05, 95% CI = 1.01, 4.13, respectively). Neither membership in higher risk profile nor frequency of injection (including daily or greater injection of cocaine) contributed to the model. We conclude that Black IVDUs under 30 are at greatest risk of HIV infection, that multiple patterns of drug use injection and habituation require additional resources to treat, and that the heterogeneous distribution of HIV weakens the predictive power of known behavioral risk factors in this population.
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Affiliation(s)
- J K Watters
- University of California, San Francisco 94109
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Cheng YT. Relationships between cohesive energy, Debye temperature, and the onset of temperature-dependent ion mixing. Phys Rev B Condens Matter 1989; 40:7403-7405. [PMID: 9991156 DOI: 10.1103/physrevb.40.7403] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
A case-control study focusing on the role of single food items was undertaken in the Heilongjiang area, 241 patients with histologically verified stomach cancer and an equal number of controls (with non-neoplastic diseases) matched by age, sex and area of residence being interviewed during a 2-year period. Questions asked covered economic status, occupation, histories of smoking and drinking, diet and dietary habits and disease history. Data concerning the average frequency and quantity of consumption of single food items were obtained by the same interviewer. An inverse association between the consumption of vegetables and stomach cancer was observed whereas high intake of potatoes and of salted and fermented soya paste appeared to be high-risk factors. Specifically, Chinese cabbage plays an important role in reducing the risk of developing stomach cancer.
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Affiliation(s)
- J F Hu
- Department of Epidemiology, Harbin Medical College, China
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