151
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Han H, Liu S, Zhou XG, Tian L, Zhang XD. Aetiology of obstructive azoospermia in Chinese infertility patients. Andrologia 2015; 48:761-4. [PMID: 26688510 DOI: 10.1111/and.12509] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2015] [Indexed: 11/28/2022] Open
Affiliation(s)
- H. Han
- Department of Urology; Beijing Chao-Yang Hospital; Capital Medical University; Beijing China
| | - S. Liu
- Department of Urology; Beijing Chao-Yang Hospital; Capital Medical University; Beijing China
| | - X.-G. Zhou
- Department of Urology; Beijing Chao-Yang Hospital; Capital Medical University; Beijing China
| | - L. Tian
- Department of Urology; Beijing Chao-Yang Hospital; Capital Medical University; Beijing China
| | - X.-D. Zhang
- Department of Urology; Beijing Chao-Yang Hospital; Capital Medical University; Beijing China
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152
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Zhang J, Han H, Li Z, Kong D, Kong J, Zhang A, Zhang J, Shang Y, Zhao Z, Liu M. Luminal B-Subtype Associates With Lower Survival Among Breast Cancer Patients Regardless of Postsurgery Radiation Therapy Administered. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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153
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Han H, Hutter C, Lin Y. Association of Aspirin and NSAID Use With Risk of Colorectal Cancer According to Genetic Variants. J Vasc Surg 2015. [DOI: 10.1016/j.jvs.2015.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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154
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Han H, shin D, kang H. Comparison of reposition rate between postheadshaking modified sermont maneuver and postvibration modified sermont maneuver in apogeotropic horizontal BPPV. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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155
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Brito JA, Subbotin SA, Han H, Stanley JD, Dickson DW. Molecular Characterization of Meloidogyne christiei Golden and Kaplan, 1986 (Nematoda, Meloidogynidae) Topotype Population Infecting Turkey Oak (Quercus laevies) in Florida. J Nematol 2015; 47:169-75. [PMID: 26527837 PMCID: PMC4612186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Indexed: 06/05/2023] Open
Abstract
Meloidogyne christiei isolated from turkey oak, Quercus laevies, from the type locality in Florida was characterized using isozyme profiles and ribosomal and mitochondrial gene sequences. The phenotype N1a detected from a single egg-laying female of M. christiei showed one very strong band of malate dehydrogenase (MDH) activity; however, no esterase (EST) activity was identified from macerate of one or even 20 females per well. Phylogenetic relationships within the genus Meloidogyne as inferred from Bayesian analysis of partial 18S ribosomal RNA (rRNA), D2-D3 of 28S rRNA, internal transcribed spacer (ITS) rRNA, and cytochrome oxidase subunit II (COII)-16S rRNA of mitochondrial DNA (mtDNA) gene fragments showed that M. christiei formed a separate lineage within the crown group of Meloidogyne and its relationships with any of three Meloidogyne clades were not resolved.
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Affiliation(s)
- J A Brito
- Nematologists, Division of Plant Industry, Florida Department of Agriculture and Consumer Services, Gainesville, FL 32614-7100
| | - S A Subbotin
- Nematologist, Plant Pest Diagnostic Center, California Department of Food and Agriculture, Sacramento, CA 95832-1448
| | - H Han
- Division of Forest Insect Pests and Diseases, Korea Forest Research Institute, Seoul 130-712, Republic of Korea
| | - J D Stanley
- Nematologists, Division of Plant Industry, Florida Department of Agriculture and Consumer Services, Gainesville, FL 32614-7100
| | - D W Dickson
- Professor, Entomology and Nematology Department, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611-0620
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156
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Wang Y, Rao W, Zhang C, Zhang C, Liu MD, Han F, Yao LB, Han H, Luo P, Su N, Fei Z. Scaffolding protein Homer1a protects against NMDA-induced neuronal injury. Cell Death Dis 2015; 6:e1843. [PMID: 26247728 PMCID: PMC4558508 DOI: 10.1038/cddis.2015.216] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 06/19/2015] [Accepted: 06/25/2015] [Indexed: 01/18/2023]
Abstract
Excessive N-methyl-D-aspartate receptor (NMDAR) activation and the resulting activation of neuronal nitric oxide synthase (nNOS) cause neuronal injury. Homer1b/c facilitates NMDAR-PSD95-nNOS complex interactions, and Homer1a is a negative competitor of Homer1b/c. We report that Homer1a was both upregulated by and protected against NMDA-induced neuronal injury in vitro and in vivo. The neuroprotective activity of Homer1a was associated with NMDA-induced Ca2+ influx, oxidative stress and the resultant downstream signaling activation. Additionally, we found that Homer1a functionally regulated NMDAR channel properties in neurons, but did not regulate recombinant NR1/NR2B receptors in HEK293 cells. Furthermore, we found that Homer1a detached the physical links among NR2B, PSD95 and nNOS and reduced the membrane distribution of NMDAR. NMDA-induced neuronal injury was more severe in Homer1a homozygous knockout mice (KO, Homer1a−/−) when compared with NMDA-induced neuronal injury in wild-type mice (WT, Homer1a+/+). Additionally, Homer1a overexpression in the cortex of Homer1a−/− mice alleviated NMDA-induced neuronal injury. These findings suggest that Homer1a may be a key neuroprotective endogenous molecule that protects against NMDA-induced neuronal injury by disassembling NR2B-PSD95-nNOS complexes and reducing the membrane distribution of NMDARs.
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Affiliation(s)
- Y Wang
- 1] Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, P.R. China [2] Department of Neurosurgery, Wuhan Zhong Xin Hospital, Wuhan, P.R. China
| | - W Rao
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, P.R. China
| | - C Zhang
- Department of Neurology, Second Artillery General Hospital of PLA, Beijing, P.R. China
| | - C Zhang
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, P.R. China
| | - M-D Liu
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, P.R. China
| | - F Han
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, P.R. China
| | - L-b Yao
- Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, The Fourth Military Medical University, Xi'an, P.R. China
| | - H Han
- Department of Medical Genetics and Developmental Biology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, P.R. China
| | - P Luo
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, P.R. China
| | - N Su
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, P.R. China
| | - Z Fei
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, P.R. China
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157
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Hu X, Pan D, Lin M, Han H, Li F. One-Step Electrochemical Deposition of Reduced Graphene Oxide-Bismuth Nanocomposites for Determination of Lead. ACTA ACUST UNITED AC 2015. [DOI: 10.1149/2.0021509eel] [Citation(s) in RCA: 11] [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: 11/16/2022]
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158
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Dong Y, Huang J, Li G, Li L, Li W, Li X, Liu X, Liu Z, Lu Y, Ma A, Sun H, Wang H, Wen X, Xu D, Yang J, Zhang J, Zhao H, Zhou J, Zhu L, Committee Members:, Bai L, Cao K, Chen M, Chen M, Dai G, Ding W, Dong W, Fang Q, Fang W, Fu X, Gao W, Gao R, Ge J, Ge Z, Gu F, Guo Y, Han H, Hu D, Huang W, Huang L, Huang C, Huang D, Huo Y, Jin W, Ke Y, Lei H, Li X, Li Y, Li D, Li G, Li X, Li Z, Liang Y, Liao Y, Liu G, Ma A, Ma C, Ma D, Ma Y, Shen L, Sun J, Sun C, Sun Y, Tang Q, Wan Z, Wang H, Wang J, Wang S, Wang D, Wang G, Wang J, Wu Y, Wu P, Wu S, Wu X, Wu Z, Yang J, Yang T, Yang X, Yang Y, Yang Z, Ye P, Yu B, Yuan F, Zhang S, Zhang Y, Zhang R, Zhang Y, Zhang Y, Zhao S, Zhou X. Guidelines for the prevention, diagnosis, and treatment of infective endocarditis in adults: The Task Force for the Prevention, Diagnosis, and Treatment of Infective Endocarditis in Adults of Chinese Society of Cardiology of Chinese Medical Association, and of the Editorial Board of Chinese Journal of Cardiology. Eur Heart J Suppl 2015. [DOI: 10.1093/eurheartj/suv031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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159
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Markusse I, Dirven L, Han H, Ronday K, Speyer I, Kerstens P, Lems W, Huizinga T, Allaart C. OP0048 Survival in Early Rheumatoid Arthritis Patients After 10 Years of Targeted Treatment. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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160
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Markusse I, Dirven L, Han H, van Oosterhout M, Schouffoer A, Kerstens P, Lems W, Huizinga T, Allaart C. THU0100 Disease Activity Flares in Early Rheumatoid Arthritis Patients are Associated with Joint Damage Progression and Disability – Analysis of 10 Year Follow-up in the Best Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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161
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Waanders A, Silva A, Chen SS, Han H, Zhu Y, Boucher K, Jain P, Fierst T, Choudhari N, Mueller S, Haas-Kogan D, Storm P, Resnick A. TR-06 * COMBINATORIAL PATHWAY TARGETING APPROACHES FOR BRAF-FUSIONS ASSOCIATED WITH PEDIATRIC LOW-GRADE GLIOMAS. Neuro Oncol 2015. [DOI: 10.1093/neuonc/nov061.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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162
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Han H, Cui M, You X, Chen M, Piao X, Jin G. A role of 1,25(OH)2D3 supplementation in rats with nonalcoholic steatohepatitis induced by choline-deficient diet. Nutr Metab Cardiovasc Dis 2015; 25:556-561. [PMID: 25843661 DOI: 10.1016/j.numecd.2015.02.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 01/29/2015] [Accepted: 02/22/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND AIMS It has been reported that 1,25(OH)2D3 (1,25-VD3) ameliorates the progression of nonalcoholic steatohepatitis (NASH). However, it is unclear whether 1,25-VD3 plays a role in NASH induced by a choline-deficient (CD) diet. In this study, we investigated the roles of 1,25-VD3 in the development and progression of NASH in rats induced by a CD diet. METHODS AND RESULTS Wistar rats with NASH induced by a CD diet were subjected to intraperitoneal injections of 1, 5, or 10 μg/kg of 1,25-VD3 twice weekly for 12 weeks. The administration of 1,25-VD3 decreased free fatty acids (FFAs), triglycerides (TGs), thiobarbituric acid-reactive substances (TBARS), the number of apoptotic cells, and the expression of tissue inhibitor of metalloproteinase-1 (TIMP-1) in the liver, and it improved liver histology, but it did not change the total antioxidant capacity (TAOC) in the liver. Interestingly, the level of CK18-M30 was decreased in the liver of model animals. Treatment with 1,25-VD3 may restrain the downregulation of CK18-M30 in the liver and its release into the bloodstream, thus decreasing the level of serum CK18-M30. 1,25-VD3 supplementation elevated the serum level of 25(OH)D3 and the expression of VDR in the liver. The dose-effect relationship of 1,25-VD3 indicated that 1,25-VD3 slows down the development and progression of NASH induced by a CD diet, but higher doses of 1,25-VD3 may lead to adverse effects. CONCLUSION The results suggest the presence of both antagonistic and adverse dose-dependent effects of the long-term supplementation of 1,25-VD3 on NASH induced by a CD diet.
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Affiliation(s)
- H Han
- Department of Gastroenterology, Affiliated Hospital of Yanbian University, Yanji, China
| | - M Cui
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China
| | - X You
- Department of Laboratory Medicine, Affiliated Hospital of Yanbian University, Yanji, China
| | - M Chen
- Department of Gastroenterology, Affiliated Hospital of Yanbian University, Yanji, China
| | - X Piao
- Department of Gastroenterology, Affiliated Hospital of Yanbian University, Yanji, China.
| | - G Jin
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China.
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163
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Li ZS, Yao K, Chen P, Wang B, Chen JP, Mi QW, Li YH, Liu ZW, Qin ZK, Zhou FJ, Han H. Modification of N staging systems for penile cancer: a more precise prediction of prognosis. Br J Cancer 2015; 112:1766-71. [PMID: 25942394 PMCID: PMC4647243 DOI: 10.1038/bjc.2015.141] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/27/2015] [Accepted: 03/10/2015] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND The tumour-node-metastasis (TNM) classification is the most widely used tool for penile cancer. However, the current system is based on few studies and has been unchanged since 2009. We determined whether a modified pathological N staging system that incorporates the laterality and number of lymph node metastases (LNMs) increases the accuracy of the results in predicting survival compared with the 7th edition of the pathological N staging system of the American Joint Committee on Cancer (AJCC) for penile cancer. METHODS The clinical and histopathologic data from 111 patients with penile cancer with LNMs were analysed. Univariate and multivariate Cox proportional hazard regression analyses were used to determine the impact of the clinical and pathological factors on disease-specific survival of these patients. The predictive accuracy was further assessed using the concordance index. RESULTS According to the 7th edition of the pathological N classification, the 3-year disease-specific survival (DSS) rates for patients with pN1, pN2, and pN3 disease are 89.6%, 65.9%, and 33.6%, respectively (P(N1-N2)=0.030, P(N2-N3)<0.001, P<0.001). Under the modified pathological N category criteria, the 3-year DSS rates for pN1, pN2, and pN3 patients were 90.7%, 60.5%, and 31.4%, respectively (P(N1-N2)=0.005, P(N2-N3)=0.004, P<0.001). In separate multivariate Cox regression models, only modified N stages (hazard ratio: 4.877, 10.895; P=0.018, P<0.001) exhibited independent effects on the outcome. The accuracy of the modified pathological N category was significantly increased. CONCLUSIONS The modified pathological N staging system is a better reflection of the prognosis of patients with penile cancer. Our study should contribute to the improvement of prognostic stratification and systemic treatment to avoid overtreatment of patients.
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Affiliation(s)
- Z-S Li
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, PR China
- State Key Laboratory of Oncology in Southern China, Guangzhou, PR China
- Collaborative Innovation Center of Cancer Medicine, Guangzhou, PR China
| | - K Yao
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, PR China
- State Key Laboratory of Oncology in Southern China, Guangzhou, PR China
- Collaborative Innovation Center of Cancer Medicine, Guangzhou, PR China
| | - P Chen
- Department of Urology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumchi, PR China
| | - B Wang
- Department of Urology, Cancer Center of Guangzhou Medical University, Guangzhou, PR China
| | - J-P Chen
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, PR China
- State Key Laboratory of Oncology in Southern China, Guangzhou, PR China
- Collaborative Innovation Center of Cancer Medicine, Guangzhou, PR China
| | - Q-W Mi
- Department of Urology, Dong Guan People's Hospital, Guang Dong, PR China
| | - Y-H Li
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, PR China
- State Key Laboratory of Oncology in Southern China, Guangzhou, PR China
- Collaborative Innovation Center of Cancer Medicine, Guangzhou, PR China
| | - Z-W Liu
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, PR China
- State Key Laboratory of Oncology in Southern China, Guangzhou, PR China
- Collaborative Innovation Center of Cancer Medicine, Guangzhou, PR China
| | - Z-K Qin
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, PR China
- State Key Laboratory of Oncology in Southern China, Guangzhou, PR China
- Collaborative Innovation Center of Cancer Medicine, Guangzhou, PR China
| | - F-J Zhou
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, PR China
- State Key Laboratory of Oncology in Southern China, Guangzhou, PR China
- Collaborative Innovation Center of Cancer Medicine, Guangzhou, PR China
| | - H Han
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, PR China
- State Key Laboratory of Oncology in Southern China, Guangzhou, PR China
- Collaborative Innovation Center of Cancer Medicine, Guangzhou, PR China
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164
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Han H, Kubo A, Maruichi S, Sadakiyo K, Kurosawa K. Correlation coefficient investigation of the classification of the difference patterns of ipsilateral hip rotational range of motion. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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165
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Li Y, Guo Y, Wang X, Yu X, Duan W, Hong K, Wang J, Han H, Li C. Trehalose decreases mutant SOD1 expression and alleviates motor deficiency in early but not end-stage amyotrophic lateral sclerosis in a SOD1-G93A mouse model. Neuroscience 2015; 298:12-25. [PMID: 25841320 DOI: 10.1016/j.neuroscience.2015.03.061] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 03/12/2015] [Accepted: 03/25/2015] [Indexed: 12/22/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder for which there is currently no effective treatment. Studies indicate that enhancing autophagy in mouse models of neurodegenerative disease can ameliorate the behavioral symptoms and pathological damage associated with the accumulation of pathological mutant proteins such as mutant superoxide dismutase (SOD1). This study investigated the effects of trehalose treatment on both early and end-stage disease in a transgenic mouse model of ALS via short-term (30 days after administration) and long-term (from 60 days after administration to death) trehalose treatment experiments. Sixty-day-old female SOD1-G93A transgenic mice were treated daily with 2% (w/v) trehalose in their drinking water for 30 days and monitored until they reached a neurological score of four, whereupon they were euthanized by cervical dislocation. Neurological, rotarod performance test and hanging wire test scores were recorded and body weight monitored. After death, the spinal cord was removed to assess the number of motor neurons and to measure the expression of mutant SOD1, LC3-II and p62. Trehalose significantly reduced the levels of mutant SOD1 and p62 and increased LC3-II in the spinal cords of 90-day-old SOD1-G93A transgenic mice. Furthermore, trehalose treatment significantly postponed disease onset, lengthened the time it took to reach a neurological score of 2 and preserved motor function; however, trehalose became less effective at delaying further disease progression as the disease progressed beyond a neurological score of 2 and it failed to extend the survival of SOD1-G93A transgenic mice. Additionally, independent of autophagy, trehalose consistently inhibited microgliosis and astrogliosis throughout the entire duration of the study. In conclusion, trehalose may be a useful add-on therapy in conjunction with other ALS treatment options to alleviate symptoms in early-stage ALS.
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Affiliation(s)
- Y Li
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China; Key Laboratory of Hebei Neurology, Shijiazhuang, China; Hebei Institute of Cardiocerebrovascular Disease, Shijiazhuang, China
| | - Y Guo
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China; Key Laboratory of Hebei Neurology, Shijiazhuang, China; Hebei Institute of Cardiocerebrovascular Disease, Shijiazhuang, China
| | - X Wang
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - X Yu
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China; Key Laboratory of Hebei Neurology, Shijiazhuang, China; Hebei Institute of Cardiocerebrovascular Disease, Shijiazhuang, China
| | - W Duan
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China; Key Laboratory of Hebei Neurology, Shijiazhuang, China; Hebei Institute of Cardiocerebrovascular Disease, Shijiazhuang, China
| | - K Hong
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China; Key Laboratory of Hebei Neurology, Shijiazhuang, China; Hebei Institute of Cardiocerebrovascular Disease, Shijiazhuang, China
| | - J Wang
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - H Han
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - C Li
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China; Key Laboratory of Hebei Neurology, Shijiazhuang, China; Hebei Institute of Cardiocerebrovascular Disease, Shijiazhuang, China.
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166
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Field ME, Anthony RV, Engle TE, Archibeque SL, Keisler DH, Han H. Duration of maternal undernutrition differentially alters fetal growth and hormone concentrations. Domest Anim Endocrinol 2015; 51:1-7. [PMID: 25460066 DOI: 10.1016/j.domaniend.2014.09.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 09/12/2014] [Accepted: 09/12/2014] [Indexed: 01/12/2023]
Abstract
To investigate the impact of duration of maternal undernutrition in twin sheep pregnancies, ewes were either fed 100% (C) or 50% of their nutrient requirements from 28 to 78 d gestational age (dGA) and readjusted to 100% beginning at 79 dGA (LC) or continuously restricted from 28 to 135 dGA (LL). Weights of the fetus, empty carcass, brain, and liver were greater in the LC than LL fetuses at 135 dGA (P ≤ 0.05). Although umbilical vein (UmV) glucose concentrations did not differ, the UmV:umbilical artery (UmA) glucose gradient was smaller (0.26 ± 0.03 vs 0.38 ± 0.03 and 0.39 ± 0.04 mmol L(-1); P ≤ 0.05) in LL than C and LC fetuses, respectively. Umbilical vein concentrations of IGF-1 were less (46.7 ± 5.62 vs 74.3 ± 6.71 ng/mL; P ≤ 0.05) in LL than LC fetuses. Additionally, LL fetuses tended (P ≤ 0.10) to have lower UmA concentrations of insulin (0.24 ± 0.13 vs 0.70 ± 0.15 ng/mL) and IGF-1 (66.6 ± 7.51 vs 91.4 ± 8.97 ng/mL) than LC fetuses. Although most of the observed differences occurred between LC and LL pregnancies, LC fetuses tended (P ≤ 0.10) to have greater UmV and UmA pCO2 than C fetuses. Furthermore, the UmV:UmA O2 content gradient tended to be greater (5.02 ± 0.43 vs 3.41 ± 0.47; P ≤ 0.10) in C than LL fetuses. UmA placental lactogen also tended to be greater (46.6 ± 4.40 vs 31.1 ± 4.69 ng/mL; P ≤ 0.10) in LL than C fetuses. These data suggest that in twin pregnancies, maternal undernutrition followed by realimentation induces a different fetal outcome compared with continuous nutrient restriction, and both may differ physiologically from control fed pregnancies.
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Affiliation(s)
- M E Field
- Department of Animal Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - R V Anthony
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - T E Engle
- Department of Animal Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - S L Archibeque
- Department of Animal Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - D H Keisler
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA
| | - H Han
- Department of Animal Sciences, Colorado State University, Fort Collins, CO 80523, USA.
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167
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Abstract
Embryonic mice have been used widely to study organ development. Days 14-16 are critical for sex organ development and differentiation in mice. Current methods for sex identification are limited. Even the simplest polymerase chain reaction method may injure the embryo. We determined that morphologic analysis of embryonic mammary anlagen could be used for rapid atraumatic sex identification of day 14-16 mice. The accuracy of our method was verified by molecular and anatomical approaches.
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Affiliation(s)
- J Song
- College of Basic Medical Sciences, Dalian Medical University , Dalian
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168
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Abstract
Tumor necrosis factor-α (TNF-α) promoter polymorphisms has been reported to be associated with obesity and insulin resistance and gained widespread attention. However, results obtained so far are quite conflicting. We therefore performed a meta-analysis to address this issue, basing on 17 studies from electronic databases (MEDLINE and EMBASE). No evidence of significant effect of TNF-αG-308A polymorphism on body mass index (BMI) or obesity risk was detected (BMI: WMDRE = 0.05, 95%CI: -0.62 to 0.73; risk of obesity: ORFE = 1.09, 95%CI: 0.87 to 1.35). G-308A variant was significantly associated with increased insulin levels in the overall (SMDFE = 0.12, 95%CI: 0.03 to 0.20) and obese subgroup analysis (SMDFE = 0.16, 95%CI: 0.03 to 0.29). In total, no significant result was observed for the association between TNF-α G-308A variant and HOMA-IR index. Nevertheless, subgroup analysis showed G-308A polymorphism was significantly associated with increased HOMA-IR in Caucasians (WMDFE = 0.49, 95%CI: 0.03 to 0.94). Our results indicate that TNF-αG-308A polymorphism has a significant effect on insulin resistance. However, it is unlikely that G-308A variant contributes to obesity.
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Affiliation(s)
- H G Wang
- Institute of Immunopharmacology and Immunotherapy, School of Pharmacy, Shandong University, Jinan, China
| | - J Yang
- Department of Pediatric, Qilu Hospital, Shandong University, Jinan, China
| | - H Han
- Department of Emergency, Qilu Hospital, Shandong University, Jinan, China
| | - F Xu
- Department of Emergency, Qilu Hospital, Shandong University, Jinan, China
| | - Y Bian
- Department of Emergency, Qilu Hospital, Shandong University, Jinan, China
| | - H Zhang
- Department of Emergency, Qilu Hospital, Shandong University, Jinan, China
| | - J L Wang
- Department of Emergency, Qilu Hospital, Shandong University, Jinan, China
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169
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Han H, Jones E, Farouque O. Out-of-hospital cardiac arrest: variations in clinical decision making for immediate coronary angiography. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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170
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Abstract
During a pinewood nematode survey in 2011, a dead pitch pine (Pinus rigida) was found in Daejeon city, Korea. Samples were taken from several regions of the trunk and nematodes were extracted from the wood samples by a modified Baermann funnel method (1). Recovered nematodes were then cultured on Botrytis cinerea grown in potato dextrose agar (PDA) medium. Males and females (n = 10) were examined under an inverted light microscope. Morphologically, these nematodes were identified as Bursaphelenchus yongensis sharing the characters of the genus Bursaphelenchus including a large median bulb, offset cephalic region, a well-developed stylet with small basal knobs, female with vulva at 70% of body length, and males with terminal bursa. Females of B. yongensis were similar to B. muconatus and B. fraudulentus by presence of tail mucron, but they were differentiated by a smaller vulval flap. Males had spicules with small cucullus, pointed rostrum, and with strongly dorsally bent condylus. The identity of the nematode was confirmed through molecular diagnosis. DNA was extracted from each of 10 nematodes using commercial DNeasy kits (Qiagen, Valencia, CA) and the ITS regions were amplified with a primer set by PCR (Bio Rad, US/PTC-0220) (3,5). Amplified ITS DNA was cloned and sequenced, and the sequence data was deposited to GenBank (Accession No. KJ857070). The ITS sequence of Korean isolate (KJ857070) showed 99% similarity to that from Chinese isolate in GenBank (AM180513). ITS-RFLP patterns using five different restriction enzymes, RsaI, HaeIII, MspI, HinfI, and AluI, matched 100% with those previously reported for B. yongensis (2,4). Host pathogenicity tests were conducted from June to August on saplings of five native and introduced conifer species found in Korea (Abies sp., Larix leptolepsis, P. koraiensis, P. strobus, and P. thunbergii). All saplings were 5 to 6 years old and 15 saplings were inoculated for each species. B. yongensis was cultures on B. cinerea for 10 days at 25°C and the inoculum concentration was calibrated at 5,000 nematodes/50 μl sterile water. Nematodes were artificially inoculated by making a 1-cm-long incision into the stem using a sterile razor blade. B. yongensis was pathogenic on L. leptolepsis, causing wilt and death in all inoculated saplings; however, the nematode had no effect on P. thunbergii, P. koraiensis, Abies sp., or P. strobus. To our knowledge, this is the first report of B. yongensis in Korea. This nematode is a potential threat to L. leptolepsis; however, the role of B. yongensis in the mortality of P. rigida is uncertain at this time. References: (1) S. M. Ayoub. Plant Nematology in Agricultural Training Aid. Department of Food and Agriculture, Division of Plant Industry, Sacramento, CA, 1977. (2) W. Burgermeister et al. Nematology 11:649, 2009. (3) V. R. Ferris et al. Fund. Appl. Nematol. 16:177, 1993. (4) J. Gu et al. Russian J. Nematol. 14:91, 2006. (5) T. C. Vrain. J. Nematol. 25:361, 1993.
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Affiliation(s)
- H Han
- Division of Forest Insect Pests and Diseases, Korea Forest Research Institute, Seoul, Korea
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171
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Han H, Djukiadmodjo F, Al-Fiadh A, Sanders K, Scott P, Teh A, Lim H, O’Donnell D, Jones E, Farouque O. Resuscitated out-of-hospital cardiac arrest: predictors of in-hospital survival. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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172
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Gilet M, Eutamene H, Han H, Kim HW, Bueno L. Influence of a new 5-HT4 receptor partial agonist, YKP10811, on visceral hypersensitivity in rats triggered by stress and inflammation. Neurogastroenterol Motil 2014; 26:1761-70. [PMID: 25316608 DOI: 10.1111/nmo.12458] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 09/18/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Adverse effects of previously developed 5-HT4 receptor agonists to treat functional constipation (FC) and constipation IBS (IBS-C) patients have limited their use but have given rise to new and more selective 5-HT4 receptor agonists. This work was aimed to evaluate the influence of YKP10811, a new potent 5-HT4 receptor partial agonist, on rat models of colorectal hypersensitivity to distension. METHODS Male and female rats were submitted to colorectal distension (CRD) before and after trinitrobenzene sulfonic acid (TNBS) infusion, acute (PRS) or chronic (water avoidance -10 days - WAS) stress. Electromyographic (EMG) response of abdominal muscles to CRD (15-60 mmHg) was used to measure pain. Changes of colonic tone were also evaluated. The influence of YKP10811 was compared to that of tegaserod with or without exposure of rats to a 5-HT4 receptor antagonist in TNBS treated rats and to both tegaserod and CP-154,526, a corticotropine releasing factor-R1 antagonist in WAS. We tested a possible pharmacological tachyphylaxis of YKP10811 in TNBS-induced hypersensitivity. KEY RESULTS YKP10811 (30 mg/kg) had no effect on basal sensitivity and tone in male and female rats but suppressed TNBS-induced hypersensitivity, an effect blocked by the 5-HT4 receptor antagonist GR113808 (10 mg/kg, SC). YKP10811 attenuated acute PRS-induced but not chronic WAS-induced colonic hypersensitivity. In addition, YKP10811 but not tegaserod reduced TNBS-induced colorectal hypersensitivity after 7 days of treatment. CONCLUSIONS & INFERENCES YKP10811exhibits antinociceptive activity in inflammation and acute stress-induced colonic hypersensitivity through 5-HT4 receptors but unlike tegaserod, YKP10811 maintains its activity after repeated administrations and may represent a new candidate to treat IBS-C patients.
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Affiliation(s)
- M Gilet
- Neurogastroenterology Unit INRA-Toxalim, Toulouse, France
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173
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Kennedy E, Soliman H, Ismail-Khan R, Han H, Rossi G, Vahanian N, Link C, Sullivan D, Antonia S. A Phase 2 Study of Docetaxel in Combination with Indoximod for Metastatic Breast Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu467.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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174
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Stewart TM, Plasencia M, Han H, Jackson H, Becker CB. Moderators and Predictors of Response to Eating Disorder Risk Factor Reduction Programs in Collegiate Female Athletes. Psychol Sport Exerc 2014; 15:713-720. [PMID: 25400505 PMCID: PMC4228963 DOI: 10.1016/j.psychsport.2014.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE The primary aim of this paper was to investigate moderators and predictors of response to two programs designed to reduce eating disorder risk factors in collegiate female athletes. This study served as an ancillary study to a parent trial that investigated the feasibility of an athlete modified cognitive dissonance-based program (AM-DBP) and an athlete modified healthy weight intervention program (AM-HWI). DESIGN 157 female collegiate athletes were randomized to either the AM-DBP or the AM-HWI program. Participants completed surveys at baseline, post-intervention, 6 weeks, and 1 year. METHODS After classifying sports as either lean or non-lean, we investigated if sport type acted as a moderator of program response to AM-DBP and AM-HWI using ANOVAs. Next, we examined whether baseline thin-ideal internalization, weight concern, shape concern, bulimic pathology, dietary restraint, and negative affect acted as predictors of changes in bulimic pathology using linear regression models. RESULTS Athletes in non-lean sports who received AM-DBP showed more improvement in negative affect versus non-lean sport athletes in AM-HWI. Higher baseline scores of bulimic pathology predicted greater response in bulimic pathology to both programs at 6-weeks. In contrast, athletes with higher dietary restraint and negative affect baseline scores showed decreased response to both interventions at 6-weeks. Finally, athletes with higher baseline shape concern showed a decreased response to the AM-HWI intervention at the post intervention time point. CONCLUSION Results from the present study indicate that lean/non-lean sport may not play a strong role in determining response to efficacious programs. Further, factors such as pre-existing bulimic pathology, dietary restraint, negative affect, and shape concern may affect general response to intervention versus specific responses to specific interventions.
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Affiliation(s)
- T M Stewart
- Pennington Biomedical Research Center, 6400 Perkins Rd., Baton Rouge, LA 70808
| | - M Plasencia
- Trinity University, One Trinity Place, San Antonio, TX 78212-2100
| | - H Han
- Pennington Biomedical Research Center, 6400 Perkins Rd., Baton Rouge, LA 70808
| | - H Jackson
- Trinity University, One Trinity Place, San Antonio, TX 78212-2100
| | - C B Becker
- Trinity University, One Trinity Place, San Antonio, TX 78212-2100
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175
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Liu Y, Duan W, Guo Y, Li Z, Han H, Zhang S, Yuan P, Li C. A new cellular model of pathological TDP-43: The neurotoxicity of stably expressed CTF25 of TDP-43 depends on the proteasome. Neuroscience 2014; 281:88-98. [PMID: 25270903 DOI: 10.1016/j.neuroscience.2014.09.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 09/18/2014] [Accepted: 09/19/2014] [Indexed: 12/12/2022]
Abstract
The C-terminal fragments-25(CTF25) of TDP-43 is a fragment of TAR DNA-binding protein 43kDa (TDP-43), which is involved in RNA metabolism, neurite outgrowth, and neuronal development and stress granules. Not until recently did evidence suggest that CTF25 might play an important role in amyotrophic lateral sclerosis (ALS) pathogenesis. However, mechanical details on CTF25 causing motor neuron degeneration still remain unknown. To study the toxicity of CTF25 of TDP-43, we established a cellular model stably expressing CTF25 of TDP-43. Herein, we found that stably expressed CTF25 could induce significant oxidative stress and was mainly degraded by the proteasome pathway in cells. Furthermore, the neurotoxicity of CTF25 of TDP-43 was dependent on proteasome activity. In addition, electron microscopy showed mitochondrial swelling and cristae dilation in cells expressing CTF25 and that CTF25 aggregates were characterized by filamentous bundles and electron dense granular material. In conclusion, the new cellular model mimics classical toxic TDP-43 cellular model and interestingly the toxicity of CTF25 is dependent on the proteasome.
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Affiliation(s)
- Y Liu
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, People's Republic of China
| | - W Duan
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, People's Republic of China; Institute of Cardiocerebrovascular Disease, West Heping Road 215, Shijiazhuang, Hebei 050000, People's Republic of China; Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei 050000, People's Republic of China
| | - Y Guo
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, People's Republic of China; Institute of Cardiocerebrovascular Disease, West Heping Road 215, Shijiazhuang, Hebei 050000, People's Republic of China; Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei 050000, People's Republic of China
| | - Z Li
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, People's Republic of China; Institute of Cardiocerebrovascular Disease, West Heping Road 215, Shijiazhuang, Hebei 050000, People's Republic of China; Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei 050000, People's Republic of China
| | - H Han
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, People's Republic of China
| | - S Zhang
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, People's Republic of China
| | - P Yuan
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, People's Republic of China
| | - C Li
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, People's Republic of China; Institute of Cardiocerebrovascular Disease, West Heping Road 215, Shijiazhuang, Hebei 050000, People's Republic of China; Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei 050000, People's Republic of China.
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176
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Han H, Ogata Y, Yamamoto Y, Nagao S, Nishino N. Identification of lactic acid bacteria in the rumen and feces of dairy cows fed total mixed ration silage to assess the survival of silage bacteria in the gut. J Dairy Sci 2014; 97:5754-62. [DOI: 10.3168/jds.2014-7968] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 05/10/2014] [Indexed: 11/19/2022]
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177
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Han H, Han C, Huang S, Guo J, Zhuang X. Comparison of diffusion-weighted imaging between high and standard b-values for primary central nervous system lymphoma. Clin Radiol 2014; 69:974-9. [DOI: 10.1016/j.crad.2014.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 04/28/2014] [Accepted: 05/02/2014] [Indexed: 11/16/2022]
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178
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Han H, Son S, Yun J, Lee O. Microrna-29A Suppresses Growth, Migration and Invasion of Lung Adenocarcinoma By Targeting Carcinoembryonic Antigen-Related Cell Adhesion Molecule 6. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu326.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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179
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Son S, Lee O, Lee Y, Lee H, Song H, Han H, Han J. Diagnostic Performance of Cd66C in Lung Adenocarcinoma-Associated Malignant Pleural Effusion: Comparison with Cea, Ca 19-9, and Cyfra 21-1. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu326.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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180
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Yang WN, Ma KG, Chen XL, Shi LL, Bu G, Hu XD, Han H, Liu Y, Qian YH. Mitogen-activated protein kinase signaling pathways are involved in regulating α7 nicotinic acetylcholine receptor-mediated amyloid-β uptake in SH-SY5Y cells. Neuroscience 2014; 278:276-90. [PMID: 25168732 DOI: 10.1016/j.neuroscience.2014.08.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 08/06/2014] [Accepted: 08/14/2014] [Indexed: 10/24/2022]
Abstract
Intraneuronal accumulation of beta-amyloid protein (Aβ) is an early pathological change in Alzheimer's disease (AD). Recent studies demonstrate that α7 nicotinic acetylcholine receptor (α7nAChR) binds to soluble Aβ with a high affinity. In vitro and in vivo experiments also show that Aβ activates p38 MAPK and ERK1/2 signaling pathways via the α7nAChR. Interestingly, it has been reported that p38 MAPK and ERK1/2 signaling pathways affect the regulation of receptor-mediated endocytosis. These data suggest that MAPK signaling pathways maybe involved in the regulation of α7nAChR-mediated Aβ uptake. However, the evidence for this hypothesis is lacking. In the present study, we examined whether Aβ1-42 oligomers activate MAPK signaling pathways via α7nAChR, and assessed the role of MAPK signaling pathways in the regulation of Aβ1-42 uptake by α7nAChR. We confirm that undifferentiated SH-SY5Y cells are capable of taking up extracellular Aβ1-42. The internalization of Aβ1-42 accumulates in the endosomes/lysosomes and mitochondria. MAPK signaling pathways are activated by Aβ1-42 via α7nAChR. Aβ1-42 and α7nAChR are co-localized in SH-SY5Y cells and the expression of α7nAChR involves in Aβ1-42 uptake and accumulation in SH-SY5Y cells. Our data demonstrate that Aβ1-42 induces an α7nAChR-dependent pathway that relates to the activation of p38 MAPK and ERK1/2, resulting in internalization of Aβ1-42. Our findings suggest that α7nAChR and MAPK signaling pathways play an important role in the uptake and accumulation of Aβ1-42 in SH-SY5Y cells. Blockade of α7nAChR may have a beneficial effect by limiting intracellular accumulation of amyloid in AD brain and serves a potential therapeutic target for AD.
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Affiliation(s)
- W N Yang
- Department of Human Anatomy, Histology and Embryology, Institute of Neurobiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an 710061, China
| | - K G Ma
- Department of Human Anatomy, Histology and Embryology, Institute of Neurobiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an 710061, China
| | - X L Chen
- Department of Human Anatomy, Histology and Embryology, Institute of Neurobiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an 710061, China
| | - L L Shi
- Department of Human Anatomy, Xi'an Medical University, 1 Xinwang Road, Xi'an 710021, China
| | - G Bu
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - X D Hu
- Department of Human Anatomy, Histology and Embryology, Institute of Neurobiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an 710061, China
| | - H Han
- Department of Human Anatomy, Histology and Embryology, Institute of Neurobiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an 710061, China
| | - Y Liu
- Department of Human Anatomy, Histology and Embryology, Institute of Neurobiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an 710061, China
| | - Y H Qian
- Department of Human Anatomy, Histology and Embryology, Institute of Neurobiology, Key Laboratory of Environment and Genes Related to Diseases of Education Ministry, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an 710061, China.
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181
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Cho I, Lee J, Han H, Phansalkar S, Bates DW. Evaluation of a Korean version of a tool for assessing the incorporation of human factors into a medication-related decision support system: the I-MeDeSA. Appl Clin Inform 2014; 5:571-88. [PMID: 25024770 DOI: 10.4338/aci-2014-01-ra-0005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 05/07/2014] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE The Instrument for Evaluating Human-Factor Principles in Medication-Related Decision Support Alerts (I-MeDeSA) was developed recently in the US with a view towards improving considerations of human-factor principles when designing alerts for clinical decision support (CDS) systems. This study evaluated the generalizability of this tool, in cooperation with its authors, across cultures by applying it to a Korean system. We also examined opportunities to promote user acceptance of the system. METHODS We developed a Korean version of the I-MeDeSA (K-I-MeDeSA) and used it to evaluate drug-drug interaction alerts in a large academic tertiary hospital in Seoul. We involved four reviewers (A, B, C, and D). Two (A and B) conducted the initial independent scoring, while the other two (C and D) performed a final review and assessed feedback from the initial reviewers. The obtained scores were compared with those from 13 previously reported CDS systems. The feedback was summarized qualitatively. RESULTS The translation of the I-MeDeSA had excellent interrater agreement in terms of face validity (scale-level content validity index = 0.95). The system's K-I-MeDeSA score was 10 out of 26, with a good agreement between reviewers (κ = 0.77), which showed a lack of human-factor considerations. The reviewers readily identified two of the nine principles that needed primary improvement: prioritization and text-based information. The reviewers also expressed difficulty judging the following four principles: alarm philosophy, visibility, color, and learnability and confusability. CONCLUSION The K-I-MeDeSA was semantically and operationally equivalent to the original tool. Only minor cultural problems were identified, leading the reviewers to suggest the need for clarification of certain words plus a more detailed description of the tool's rationale and exemplars. Further evaluation is needed to empirically assess whether the implementation of changes in an electronic health record system could improve the adoption of CDS alerts.
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Affiliation(s)
- I Cho
- Department of Nursing, School of Medicine, Inha University , Incheon, Korea ; Division of General Internal Medicine, Brigham and Women's Hospital , Boston, MA, USA ; Harvard Medical School , Boston, MA, USA
| | - J Lee
- Division of General Internal Medicine, Brigham and Women's Hospital , Boston, MA, USA ; Harvard Medical School , Boston, MA, USA ; Department of Emergency Medicine, University of Ulsan College of Medicine, Asan Medical Center , Seoul, Korea ; Department of Biomedical Informatics, Asan Medical Center , Seoul, Korea
| | - H Han
- Department of Pharmacy, Asan Medical Center , Seoul, Korea
| | - S Phansalkar
- Division of General Internal Medicine, Brigham and Women's Hospital , Boston, MA, USA ; Harvard Medical School , Boston, MA, USA ; Partners Healthcare Systems , Wellesley, MA, USA ; Wolters Kluwer Health , Indianapolis, IN, USA
| | - D W Bates
- Division of General Internal Medicine, Brigham and Women's Hospital , Boston, MA, USA ; Harvard Medical School , Boston, MA, USA ; Partners Healthcare Systems , Wellesley, MA, USA
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182
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Markusse I, Dirven L, Han H, Ronday K, Kerstens P, Lems W, Huizinga T, Allaart C. FRI0055 Good Adherence of Rheumatologists to A 10 Year Treat-To-Target Protocol for Patients with Recent-Onset Rheumatoid Arthritis (The Best Study). Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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183
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Markusse I, Dirven L, vd Broek M, Akdemir G, Goekoop-Ruiterman Y, Han H, Kerstens P, Lems W, Huizinga T, Allaart C. THU0259 10 Years of Treat-To-Target Therapy in Rheumatoid Arthritis Patients (The Best Study): Clinical and Radiographic Outcomes:. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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184
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Affiliation(s)
- K-W Min
- Departments of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine , Seoul , Republic of Korea
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185
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Cha J, Han H, Kim H, Lee C. Cancer of the External Auditory Canal: Long-term Clinical Outcomes of T4 Patients Using External Beam Radiation Therapy, 1990-2012. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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186
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Han H, Cha J, Lee C. Outcome of Dental Implants in Patients With Previous Radiation History to the Head and Neck Area. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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187
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Kim S, Han H, Jung H, Kim K, Hwang D, Kang S, Kim C. Multidimensional geriatric frailty score for prediction of postoperative in-hospital events and mortality. Eur Geriatr Med 2013. [DOI: 10.1016/j.eurger.2013.07.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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188
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Ip EH, Zhang Q, Schwartz R, Tooze J, Leng X, Han H, Williamson DA. Multi-profile hidden Markov model for mood, dietary intake, and physical activity in an intervention study of childhood obesity. Stat Med 2013; 32:3314-31. [PMID: 23322318 PMCID: PMC3710544 DOI: 10.1002/sim.5719] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 11/23/2012] [Accepted: 12/03/2012] [Indexed: 11/08/2022]
Abstract
Motivated by an application to childhood obesity data in a clinical trial, this paper describes a multi-profile hidden Markov model (HMM) that uses several temporal chains of measures respectively related to psychosocial attributes, dietary intake, and energy expenditure behaviors of adolescents in a school setting. Using these psychological and behavioral profiles, the model delineates health states from the longitudinal data set. Furthermore, a two-level regression model that takes into account the clustering effects of students within school is used to assess the effects of school-based and community-based interventions and other risk factors on the transition between health states over time. The results from our study suggest that female students tend to decrease their physical activities despite a high level of anxiety about weight. The finding is consistent across intervention and control arms.
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Affiliation(s)
- E H Ip
- Department of Biostatistical Sciences, Wake Forest University School of Medicine, Winston Salem, NC 27157, USA.
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189
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Bai S, Liu S, Zhang C, Xu W, Lu Q, Han H, Kaplan DL, Zhu H. Controllable transition of silk fibroin nanostructures: an insight into in vitro silk self-assembly process. Acta Biomater 2013; 9:7806-13. [PMID: 23628774 DOI: 10.1016/j.actbio.2013.04.033] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 04/15/2013] [Accepted: 04/18/2013] [Indexed: 11/29/2022]
Abstract
Silk fiber is one of the strongest and toughest biological materials with hierarchical structures, where nanofibril with size <20nm is a critical factor in determining its excellent mechanical properties. Although silk nanofibrils have been found in natural and regenerated silk solutions, there is no way to actively control nanofibril formation in aqueous solution. This study shows a simple but effective method of preparing silk nanofibrils by regulating the silk self-assembly process. Through a repeated drying-dissolving process, a silk fibroin solution composed of metastable nanoparticles was first prepared and then used to reassemble nanofibrils with different sizes and secondary conformations under various temperatures and concentrations. These nanofibrils have a similar size to that of natural fibers, providing a suitable unit to further assemble the hierarchical structure in vitro. Several important issues, such as the relationships between silk nanofibrils, secondary conformations and viscosity, are also investigated, giving a new insight into the self-assembly process. In summary, besides rebuilding silk nanofibrils in aqueous solution, this study provides an important model for furthering the understanding of silk structures, properties and forming mechanisms, making it possible to regenerate silk materials with exceptional properties in the future.
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Affiliation(s)
- S Bai
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
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190
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Chen M, Qin Z, Zhou F, Han H, Liu Z, Li Y, Yao K, Hou G, Ye Y, Zhang Z, Tu H, Zhang X, Lu K, Yang Z. Intra-Arterial Chemotherapy is Reliable in Preventing High-Risk Superficial Bladder Cancer from Recurrence and Progression. J Chemother 2013; 21:681-6. [DOI: 10.1179/joc.2009.21.6.681] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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191
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Chang SS, Shukla R, Polydorides AD, Vila PM, Lee M, Han H, Kedia P, Lewis J, Gonzalez S, Kim MK, Harpaz N, Godbold J, Richards-Kortum R, Anandasabapathy S. High resolution microendoscopy for classification of colorectal polyps. Endoscopy 2013; 45:553-9. [PMID: 23780842 DOI: 10.1055/s-0032-1326502] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND STUDY AIMS It can be difficult to distinguish adenomas from benign polyps during routine colonoscopy. High resolution microendoscopy (HRME) is a novel method for imaging colorectal mucosa with subcellular detail. HRME criteria for the classification of colorectal neoplasia have not been previously described. Study goals were to develop criteria to characterize HRME images of colorectal mucosa (normal, hyperplastic polyps, adenomas, cancer) and to determine the accuracy and interobserver variability for the discrimination of neoplastic from non-neoplastic polyps when these criteria were applied by novice and expert microendoscopists. METHODS Two expert pathologists created consensus HRME image criteria using images from 68 patients with polyps who had undergone colonoscopy plus HRME. Using these criteria, HRME expert and novice microendoscopists were shown a set of training images and then tested to determine accuracy and interobserver variability. RESULTS Expert microendoscopists identified neoplasia with sensitivity, specificity, and accuracy of 67 % (95 % confidence interval [CI] 58 % - 75 %), 97 % (94 % - 100 %), and 87 %, respectively. Nonexperts achieved sensitivity, specificity, and accuracy of 73 % (66 % - 80 %), 91 % (80 % - 100 %), and 85 %, respectively. Overall, neoplasia were identified with sensitivity 70 % (65 % - 76 %), specificity 94 % (87 % - 100 %), and accuracy 85 %. Kappa values were: experts 0.86; nonexperts 0.72; and overall 0.78. CONCLUSIONS Using the new criteria, observers achieved high specificity and substantial interobserver agreement for distinguishing benign polyps from neoplasia. Increased expertise in HRME imaging improves accuracy. This low-cost microendoscopic platform may be an alternative to confocal microendoscopy in lower-resource or community-based settings.
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Affiliation(s)
- S S Chang
- Department of Internal Medicine, Mount Sinai Hospital, New York 10029, USA
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192
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Lee JY, Shin TJ, Choi JM, Seo KS, Kim HJ, Yoon TG, Lee YS, Han H, Chung HJ, Oh Y, Jung SJ, Shin KJ. Antinociceptive curcuminoid, KMS4034, effects on inflammatory and neuropathic pain likely via modulating TRPV1 in mice. Br J Anaesth 2013; 111:667-72. [PMID: 23719767 DOI: 10.1093/bja/aet176] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Curcumin, the active ingredient of turmeric (Curcuma longa), has a wide range of beneficial effects including anti-inflammation and analgesia. However, poor bioavailability of curcumin hinders its clinical application. To overcome this limitation, we modified the structure of curcumin and synthesized new derivatives with favourable pharmacokinetic profiles. Recently, curcumin has been shown to have an antagonizing effect on transient receptor potential vanilloid type 1 (TRPV1) ion channels. We investigated the antinociceptive activity of KMS4034 which had the most favourable pharmacokinetics among the tested curcumin derivatives. METHODS To evaluate the mechanism of the antinociceptive effects of KMS4034, capsaicin (I(CAP))- and heat (I(heat))-induced currents in TRPV1 expressing HEK293 cells were observed after the application of KMS4034. Nociceptive behavioural measurement using the hot-plate test, formalin test, and chronic constriction injury (CCI) model were evaluated in mice. Also, calcitonin gene-related peptide (CGRP) was stained immunohistochemically in the L4/5 dorsal horns in mice with neuropathic pain. RESULTS I(CAP) (P<0.01) and I(heat) (P<0.05) of TRPV1 were significantly blocked by 10 μM KMS4034. Behaviourally, noticeable antinociceptive effects after 10 mg kg(-1) of KMS4034 treatment were observed in the first (P<0.05) and second phases (P<0.05) of the formalin and hot-plate tests. The mechanical threshold of CCI mice treated with 10 mg kg(-1) KMS4034 was significantly increased compared with control. Immunohistochemical CGRP expression was decreased in the lamina I-II of the lumbar dorsal horns in KMS4034-treated CCI mice compared with the control (P<0.05). CONCLUSIONS KMS4034 may be an effective analgesic for various pain conditions.
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Affiliation(s)
- J Y Lee
- Department of Dental Anesthesiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
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193
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Yu Q, Han H, Cawthray GR, Wang SF, Powles SB. Enhanced rates of herbicide metabolism in low herbicide-dose selected resistant Lolium rigidum. Plant Cell Environ 2013; 36:818-27. [PMID: 23046181 DOI: 10.1111/pce.12017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Lolium rigidum is an obligately cross-pollinated, genetically diverse species and an economically important herbicide resistance-prone weed. Our previous work has demonstrated that recurrent selection of initially susceptible L. rigidum populations with low herbicide rates results in rapid herbicide resistance evolution. Here we report on the mechanisms endowing low-dose-selected diclofop-methyl resistance in L. rigidum. Results showed that resistance was not due to target-site ACCase mutations or overproduction, or differential herbicide leaf uptake and translocation. The in vivo de-esterification of diclofop-methyl into phytotoxic diclofop acid was rapid and similar in resistant versus susceptible populations. However, further metabolism of diclofop acid into non-toxic metabolites was always faster in resistant plants than susceptible plants, resulting in up to 2.6-fold lower level of diclofop acid in resistant plants. This corresponded well with up to twofold higher level of diclofop acid metabolites in resistant plants. The major polar metabolites of diclofop acid chromatographically resembled those of wheat, a naturally tolerant species. Clearly, recurrent selection at reduced herbicide rates selected for non-target-site-based enhanced rates of herbicide metabolism, likely involving cytochrome P450 monooxygenases.
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Affiliation(s)
- Q Yu
- Australian Herbicide Resistance Initiative (M086) and School of Plant Biology, University of Western Australia, Crawley, WA 6009, Australia.
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194
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Keum M, Hong S, Han H, Yoon D, Seo J, Yun I. Clinical effect of altered lipid emulsion composition containing fish oil in postoperative patients following abdominal surgery: a prospective, randomized, open-label, comparative, multicenter phase 3 clinical study. Crit Care 2013. [PMCID: PMC3642592 DOI: 10.1186/cc12187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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195
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Han H, Bourboulia D, Jensen-Taubman S, Isaac B, Wei B, Stetler-Stevenson WG. An endogenous inhibitor of angiogenesis inversely correlates with side population phenotype and function in human lung cancer cells. Oncogene 2013; 33:1198-206. [PMID: 23474755 DOI: 10.1038/onc.2013.61] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 12/12/2012] [Accepted: 01/11/2013] [Indexed: 12/13/2022]
Abstract
The side population (SP) in human lung cancer cell lines and tumors is enriched with cancer stem cells. An endogenous inhibitor of angiogenesis known as tissue inhibitor of matrix metalloproteinase-2 (TIMP-2), characterized for its ability to inhibit matrix metalloproteinases (MMPs), has been shown by several laboratories to impede tumor progression through MMP-dependent or -independent mechanisms. We recently reported that forced expression of TIMP-2, as well as the modified form Ala+TIMP-2 (that lacks MMP inhibitory activity) significantly blocks growth of A549 human lung cancer cells in vivo. However, the mechanisms underlying TIMP-2 antitumor effects are not fully characterized. Here, we examine the hypothesis that the TIMP-2 antitumor activity may involve regulation of the SP in human lung cancer cells. Indeed, using Hoechst dye efflux assay and flow cytometry, as well as quantitative reverse transcriptase-PCR analysis, we found that endogenous TIMP-2 mRNA levels showed a significant inverse correlation with SP fraction size in six non-small cell lung cancer cell lines. In A549 cells expressing increased levels of TIMP-2, a significant decrease in SP was observed, and this decrease was associated with lowered gene expression of ABCG2, ABCB1 and AKR1C1. Functional analysis of A549 cells showed that TIMP-2 overexpression increased chemosensitivity to cytotoxic drugs. The SP isolated from TIMP-2-overexpressing A549 cells also demonstrated impaired migratory capacity compared with the SP from empty vector control. More importantly, our data provide strong evidence that these TIMP-2 functions occur independent of MMP inhibition, as A549 cells overexpressing Ala+TIMP-2 exhibited identical behavior to those overexpressing TIMP-2 alone. Our findings provide the first indication that TIMP-2 modulates SP phenotype and function, and suggests that TIMP-2 may act as an endogenous suppressor of the SP in human lung cancer cells.
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Affiliation(s)
- H Han
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, the National Institutes of Health, Advanced Technology Center, Bethesda, MD, USA
| | - D Bourboulia
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, the National Institutes of Health, Advanced Technology Center, Bethesda, MD, USA
| | - S Jensen-Taubman
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, the National Institutes of Health, Advanced Technology Center, Bethesda, MD, USA
| | - B Isaac
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, the National Institutes of Health, Advanced Technology Center, Bethesda, MD, USA
| | - B Wei
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, the National Institutes of Health, Advanced Technology Center, Bethesda, MD, USA
| | - W G Stetler-Stevenson
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, the National Institutes of Health, Advanced Technology Center, Bethesda, MD, USA
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197
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Abstract
Development of an in vitro Eimeria (E.) tenella model could be valuable as a tool for vaccine, coccidiostats or molecular biology research. 1.0 × 10,000 sporozoites per 0.1 mL were inoculated into the allantoic cavity of ten-day-old chicken embryos. The complete life-cycle of E. tenella was accomplished in eight-nine days at 37 °C and 70% humidity. The addition of 100 U insulin to the embryos could remarkably improve the output of oocysts. The development of the parasite within the embryos was systematically observed, allowing guidelines to be set regarding the appropriate times at which different developmental stages of the parasite may be sampled.
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Affiliation(s)
- L Jiang
- Key Laboratory for Animal Parasitology, Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 518 Ziyue Road, Minhang District, Shanghai 200241, China
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Brito JA, Han H, Stanley JD, Hao M, Dickson DW. First Report of Laurel Oak as a Host for the Pecan Root-Knot Nematode, Meloidogyne partityla, in Florida. Plant Dis 2013; 97:151. [PMID: 30722300 DOI: 10.1094/pdis-02-12-0201-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Roots of laurel oak (Quercus laurifolia Michx.), member of the family Fagaceae, were found to be heavily galled by the pecan root-knot nematode, Meloidogyne partityla, in two separate home gardens between 2010 and 2012, in Alachua Co., FL. Distinct round galls were observed on secondary and tertiary roots. Internally, root-knot nematode females were clearly visible when the roots were thinly sliced and egg masses were seen protruding from the root surfaces. The nematode species identification was performed using morphology of the male stylet, selected characters of the second-stage juveniles (J2), female perineal patterns, and esterase (EST) and malate dehydrogenase (Mdh) isozyme phenotypes. Morphology of perineal patterns of females, body, stylet, and tail length of the J2 and males all matched those of the original description of M. partityla (2). A swollen deeply grooved rectum was observed in the J2. The male stylet had a blunt tip with a prominent thickening at the junction between the cone and shaft. The stylet knobs of males and females were bipartite, each incised by a deep medium longitudinal groove (2). The isozyme phenotypes (EST = Mp3; Mdh = N1a) were consistent with those previously reported for M. partityla from Florida (1). Mitochondrial DNA (mtDNA) (3) and ribosomal internal transcriber spacer (ITS) DNA (4) of females were amplified to further confirm the nematode species identification. The mtDNA amplification using the C2F3/1108 primer set (3) and the ITS amplification using a recently available M. partityla specific primer set (4) produced fragments of approximately 530 bp and 550 bp, respectively. These were consistent with those already reported for this nematode species. This first report of a plant host for the pecan root-knot nematode outside of the family Juglandaceae indicates that the nematode may have migrated from Quercus species to pecan trees during the period when orchards were being established in Florida. To our knowledge, this is the first report of the pecan root-knot nematode infecting laurel oak. References: (1) J. A. Brito et al. Nematology 10:757, 2008. (2) Kleynhans, K. P. N. Phytophylatica 18:103, 1986. (3) T. O. Powers et al., J. Nematol. 37:226, 2005. (4) R. A. Stamler. M. S. thesis, New Mexico State University, Las Cruces, 2009.
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Affiliation(s)
- J A Brito
- Division of Plant Industry, Gainesville, FL 32614-7100
| | - H Han
- Division of Forest Insect Pests and Diseases, Korea Forest Research Institute, Seoul, Republic of Korea, 130-712
| | - J D Stanley
- Division of Plant Industry, Florida Department of Agriculture and Consumer Services, Gainesville, FL 32614-7100
| | - M Hao
- Division of Plant Industry, Gainesville, FL 32614-7100
| | - D W Dickson
- Entomology and Nematology Department, University of Florida, Gainesville, FL 32611-0620
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Abstract
Euphorbia punicea (Euphorbiaceae), commonly known as Jamaican poinsettia, is an evergreen shrub with dark green leaves and flashy red bracts. Bracts are sharply contrasted by rosettes of dark green leaves and can be observed in early summer, spring, fall, and winter. This shrub, native to Jamaica, is suitable in southern climates both in the landscape and as a seasonal patio container plant. Outdoors, the plants can reach as high as 5 meters. In January of 2012, E. punicea plants growing in an ornamental nursery in Dade Co., Florida, were observed with stunted growth and yellowing leaves. Root systems of affected plants were collected and sent to the Florida Department of Agriculture and Consumer Services, Nematology Laboratory, Gainesville, FL. Root systems showing symptoms of root-knot nematode infections were heavily galled and had already started rotting. Galls were observed in the primary, secondary, and tertiary roots. Species identification was initially performed using morphology and morphometrics. The morphology of the perineal patterns and measurements of selected characters of the second-stage juveniles fit those of the original description for M. enterolobii (3). The nematode species identification was confirmed using PCR to amplify mtDNA with the C2F3/1108 primer set (1) and a species-specific SCAR primer set, MK7-F/MK7-R (2). The PCR products were approximately 700 bp for mtDNA and approximately 520 bp for the SCAR, which were identical to those previously reported for M. enterolobii (1, 2). Sanitation practices should be implemented to avoid the spread of this nematode species within and between ornamental nurseries. Planting material should be produced in media free of this pathogen to avoid its introduction into uninfested nurseries and landscape areas. M. enterolobii has a wide host range, including cover and vegetable crops, fruit trees, herbs, and ornamental and weed plants. To our knowledge, this is the first report worldwide of E. punicea as a host of M. enterolobii. References: (1) T. O. Powers et al. J. Nematol. 37:226, 2005. (2) M. S. Tigano et al. Plant Pathol. 59:1054, 2010. (3) B. Yang and J. D. Eisenback. J. Nematol. 15:381, 1983.
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Affiliation(s)
- H Han
- Division of Forest Insect Pests and Diseases, Korea Forest Research Institute, Seoul, Republic of Korea, 130-712
| | - J A Brito
- Division of Plant Industry, Gainesville, FL 32614-7100
| | - D W Dickson
- Entomology and Nematology Department, University of Florida, Gainesville, FL 32611-0620
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Han H, Takase S, Nishino N. Survival of silage lactic acid bacteria in the goat gastrointestinal tract as determined by denaturing gradient gel electrophoresis. Lett Appl Microbiol 2012; 55:384-9. [DOI: 10.1111/j.1472-765x.2012.03305.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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