76
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Bernstein O, Campbell J, Ringash J, Ho C, Tan K. Randomized study of two radiologically guided percutaneous gastrostomy insertion techniques. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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77
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Noel-Lamy M, Tan K, Lindsay T. Covered stent placement in the superior gluteal artery to preserve pelvic blood flow in a hybrid approach for treatment of internal iliac aneurysms. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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78
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Bernstein O, Tan K. Pictorial review of the complications of branched and fenestrated endovascular repair. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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79
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Sehgal A, Malikiwi A, Tan K, Menahem S. A new look at bronchopulmonary dysplasia: Role of systemic vascular & cardiac function in therapeutic options. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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80
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Wang Q, Gao Y, Tan K, Li P. Subclinical impairment of left ventricular function in diabetic patients with or without obesity: A study based on three-dimensional speckle tracking echocardiography. Herz 2014; 40 Suppl 3:260-8. [PMID: 25491664 DOI: 10.1007/s00059-014-4186-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 10/12/2014] [Accepted: 11/04/2014] [Indexed: 01/15/2023]
Abstract
AIMS The aim of this study was to investigate subclinical left ventricular (LV) changes between type 2 diabetic patients with or without obesity using three-dimensional speckle-tracking echocardiography (3DSTE). METHODS A total of 77 type 2 diabetic patients, including 36 subjects with BMI < 25 kg/m(2) and 41 subjects with BMI ≥ 25 kg/m(2), as well as 40 age- and sex-matched controls (BMI: 18.5 ~ 24.5 kg/m(2)) were studied. Waist circumference was measured in diabetic patients with a BMI ≥ 25 kg/m(2) to determine whether abdominal obesity as a complication was present. Real-time three-dimensional (3D) full volume images of the left ventricle were recorded and analyzed. Left ventricular ejection fraction (LVEF), global longitudinal strain (GLS), global circumferential strain (GCS), global area strain (GAS), and global radial strain (GRS) were calculated and compared. RESULTS Compared with the controls, diabetic subjects without overall obesity had significantly lower GCS, GAS, and GRS (p < 0.05), as well as markedly lower GLS (p < 0.001). However, 3D-LVEF and all global strains in diabetic subjects with overall obesity were not only markedly lower compared with controls (p < 0.002 and p < 0.001), but also significantly lower than those in diabetic subjects without overall obesity (p < 0.002 and p < 0.05). HbA1c and BMI showed negative impacts on all strains in diabetic patients. Meanwhile, the diabetic subjects with overall and abdominal obesity had significantly reduced GLS, GCS, GAS, and GRS compared with those with overall obesity only (all p < 0.05). CONCLUSIONS Type 2 diabetic patients demonstrated early-stage subclinical LV deformation and dysfunction, whilst coexistent obesity resulted in further damage to myocardial contractility and reduced LVEF. 3DSTE was a sensitive method for detecting these abnormalities.
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Chen DDA, Peng S, Yin J, Yang T, Dong R, Tan K, Chen Y, Lu J, Du X, Xilin D. Explanation of colon cancer pathophysiology through analyzing the disrupted homeostasis of bile acids. Afr Health Sci 2014; 14:925-8. [PMID: 25834503 DOI: 10.4314/ahs.v14i4.22] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The colon plays a key role in regulating the homeostasis of bile acids. AIM The present study aims to evaluate the influence of colon cancer towards the homeostasis of bile acids. METHODS The free and conjugated bile acids were determined using ultraperformance LC (UPLC) coupled with ABI 4000 QTRAP triple quadrupole instruments. RESULTS The results showed that the free bile acids in serum of patients with colon cancers tend to increase, and the conjugated bile acids tended to decrease, especially for taurolithocholate (TLCA) (p<0.001). CONCLUSION The alteration of bile acids balance in colon cancers indicated the possibility of complicated diseases due to the disrupted balance of bile acids.
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82
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Tan K, Yoong P, Toms AP. Normal anatomical variants of the menisci and cruciate ligaments that may mimic disease. Clin Radiol 2014; 69:1178-85. [PMID: 25060935 DOI: 10.1016/j.crad.2014.06.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 06/06/2014] [Accepted: 06/16/2014] [Indexed: 11/30/2022]
Abstract
There are many normal anatomical variants of the knee joint. Some are common and others are rare. With continuing improvements in the spatial resolution of MRI, smaller variants are more clearly demonstrated and can be mistaken for disease. They can all be differentiated from pathological conditions by understanding their anatomy and key differentiating features. This review compares normal variants of the menisci and cruciate ligaments with the pathological disorders that can mimic them.
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83
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Xiong B, Tan K, Tan YQ, Gong F, Zhang SP, Lu CF, Luo KL, Lu GX, Lin G. Using SNP array to identify aneuploidy and segmental imbalance in translocation carriers. GENOMICS DATA 2014; 2:92-5. [PMID: 26484079 PMCID: PMC4535754 DOI: 10.1016/j.gdata.2014.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 11/06/2022]
Abstract
Translocation is one of the more common structural rearrangements of chromosomes, with a prevalence of 0.2%. The two most common types of chromosomal translocations, Robertsonian and reciprocal, usually result in no obvious phenotypic abnormalities when balanced. However, these are still associated with reproductive risks, such as infertility, spontaneous abortion and the delivery of babies with mental retardation or developmental delay. In recent years, array-based whole-genome amplification (WGA) technologies, including microarray comparative genomic hybridization (array CGH; aCGH) and single-nucleotide polymorphism (SNP) micro-arrays, have enabled the screening of every chromosome for whole-chromosome aneuploidy and segmental imbalance. These techniques have been shown to have clinical application for translocation carriers. Promising studies have indicated that array-based PGD of translocation carriers can lead to transfer pregnancy rates of 45–70% [2]. In addition to genetic testing techniques, the embryo biopsy stage (polar body, cleavage embryo or blastocyst) and the mode of embryo transfer (fresh or frozen embryos) can affect the outcome of PGD. It is now generally recommended that blastomere biopsy should be replaced by blastocyst biopsy to avoid a high mosaic rate and biopsy-related damage to cleavage-stage embryos, which might affect embryo development. However, more clinical data are required to confirm that the technique of SNP array-based PGD (SNP-PGD) combined with trophectoderm (TE) biopsy and frozen embryo transfer (FET) is superior to traditional FISH-PGD combined with Day 3 (D3) blastomere biopsy and fresh embryo transfer.
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84
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Holmes MJ, Tan K, Wang Z, Oldroyd BP, Beekman M. Why acquiesce? Worker reproductive parasitism in the Eastern honeybee (Apis cerana
). J Evol Biol 2014; 27:939-49. [DOI: 10.1111/jeb.12366] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/24/2014] [Accepted: 03/06/2014] [Indexed: 02/02/2023]
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85
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Tan K, Tan NCK, Kandiah N, Samarasekera D, Ponnamperuma G. Validating a script concordance test for assessing neurological localization and emergencies. Eur J Neurol 2014; 21:1419-22. [DOI: 10.1111/ene.12373] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 12/27/2013] [Indexed: 12/01/2022]
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86
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Feng X, Zou Y, Pan W, Wang X, Wu M, Zhang M, Tao J, Zhang Y, Tan K, Li J, Chen Z, Ding X, Qian X, Da Z, Wang M, Sun L. Associations of clinical features and prognosis with age at disease onset in patients with systemic lupus erythematosus. Lupus 2013; 23:327-34. [PMID: 24297642 DOI: 10.1177/0961203313513508] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The objective of this study is to evaluate the association of clinical features and prognosis with age at disease onset in patients with systemic lupus erythematosus (SLE) in a large, multicenter Chinese cohort. Medical records of 1898 SLE inpatients from 15 hospitals were reviewed and classified into three groups according to their ages at disease presentation. Categorical data were analyzed by chi-square test and potentially associated factors were tested by multinomial logistic regression. Among the patients studied, 259 (13.6%) were juvenile onset (≤18 years), 1444 (76.1%) were early onset (>18 and ≤45 years) and 195 (10.3%) were late onset (>45 years). Whenever manifestations occurred, most patients (>80%) were diagnosed within two years. Juvenile-onset patients were more likely to be untreated before admission ( p < 0.001) and have mucocutaneous manifestations ( p < 0.001), but musculoskeletal symptoms ( p < 0.05) and leukopenia ( p < 0.05) were less frequent, while comorbidities were much higher in patients with late-onset SLE ( p < 0.001). Neuropsychiatric, cardiopulmonary, renal and gastrointestinal involvement, disease activity index and damage scores were similar among three groups. Anti-Sm antibodies were less prevalent in late-onset patients ( p < 0.05) and antimalarial drugs were more often applied to juvenile-onset patients ( p < 0.001). As expected, mortality was elevated in the late-onset SLE group ( p < 0.05), in which nearly half died of infections, which was much higher than those in the other two groups ( p < 0.001). Logistic regression confirmed that patients with juvenile- and early-onset disease were associated with high incidence of being untreated prior to admission, and with low incidence of comorbidities as well as deaths caused by infection compared to patients with late-onset lupus. Interestingly, our data showed that more patients with late-onset disease had a SLEDAI score change of >7 at discharge. In conclusion, age at onset has an impact on SLE disease status, and infection is the main cause of death in those with late-onset lupus. Considering that the late-onset patients had simultaneously easily controllable diseases and high incidence of comorbidities, a different treatment strategy from younger patients should be considered.
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87
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Tan NCK, Tan K. Educational interventions in neurology: a comprehensive systematic review. Eur J Neurol 2013; 20:e122. [DOI: 10.1111/ene.12224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Accepted: 04/30/2013] [Indexed: 11/30/2022]
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88
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Ng K, Ling L, Tan K. Diagnostic challenge and steroid-dependence in a HIV patient with cryptococcal immune reconstitution inflammatory syndrome. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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89
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Fang P, Tan K, Grover S, Troxel A, Lin L. Psychological and Social Work Encounters Predict Higher Patient-Reported Functional Quality of Life in Gynecological Cancer Treatment. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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90
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Dhesi D, Tan K, Lam C. Do Trigger Tools Have a Role in Detecting Adverse Events for Radiation Therapy Patients with Nasopharyngeal Cancer? J Med Imaging Radiat Sci 2013. [DOI: 10.1016/j.jmir.2013.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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91
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Kumana C, Cheung B, Tan K. PP172—Short-Term Impact of Bariatric Surgery on Obesity Associated Diabetes Mellitus. Clin Ther 2013. [DOI: 10.1016/j.clinthera.2013.07.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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92
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Tan YQ, Tan K, Zhang SP, Gong F, Cheng DH, Xiong B, Lu CF, Tang XC, Luo KL, Lin G, Lu GX. Single-nucleotide polymorphism microarray-based preimplantation genetic diagnosis is likely to improve the clinical outcome for translocation carriers. Hum Reprod 2013; 28:2581-92. [DOI: 10.1093/humrep/det271] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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93
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Aizpurua J, Szlarb N, Moragues I, Ramos B, Rogel S, Li J, Yin XY, Tan K, Tan YQ, Chen F, Zhang LEI, Lin G, Jiang H, Wang W, Wells D, Kaur K, Grifo J, Anderson S, Taylor J, Fragouli E, Munne S, Levy B, Banjevic M, Hill M, Zimmermann B, Ryan A, Sigurjonsson S, Wayham N, Lacroute P, Dodd M, Hoang B, Tong J, Vu P, Hall MP, Demko Z, Rabinowitz M, Spath K, Fragouli E, Konstantinidis M, Poli M, Wells D. Session 16: Innovations in reproductive genetics. Hum Reprod 2013. [DOI: 10.1093/humrep/det143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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94
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Mettrick E, Tan K, Green L, Cashell A. An Interprofessional Approach to Teaching Patient Centred Care: A Workshop Review. J Med Imaging Radiat Sci 2013. [DOI: 10.1016/j.jmir.2012.12.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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95
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Xi Y, Wei Y, Sennino B, Ulsamer A, Kwan I, Brumwell AN, Tan K, Aghi MK, McDonald DM, Jablons DM, Chapman HA. Identification of pY654-β-catenin as a critical co-factor in hypoxia-inducible factor-1α signaling and tumor responses to hypoxia. Oncogene 2012; 32:5048-57. [PMID: 23246962 DOI: 10.1038/onc.2012.530] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 10/03/2012] [Accepted: 10/14/2012] [Indexed: 12/26/2022]
Abstract
Hypoxia is linked to epithelial-mesenchymal transition (EMT) and tumor progression in numerous carcinomas. Responses to hypoxia are thought to operate via hypoxia-inducible factors (HIFs), but the importance of co-factors that regulate HIF signaling within tumors is not well understood. Here, we elucidate a signaling pathway that physically and functionally couples tyrosine phosphorylation of β-catenin to HIF1α signaling and HIF1α-mediated tumor EMT. Primary human lung adenocarcinomas accumulate pY654-β-catenin and HIF1α. All pY654-β-catenin, and only the tyrosine phosphorylated form, was found complexed with HIF1α and active Src, both within the human tumors and in lung tumor cell lines exposed to hypoxia. Phosphorylation of Y654, generated by hypoxia mediated, reactive oxygen species (ROS)-dependent Src kinase activation, was required for β-catenin to interact with HIF1α and Src, to promote HIF1α transcriptional activity, and for hypoxia-induced EMT. Mice bearing hypoxic pancreatic islet adenomas, generated by treatment with anti-vascular endothelial growth factor antibodies, accumulate HIF1α/pY654-β-catenin complexes and develop an invasive phenotype. Concurrent administration of the ROS inhibitor N-acetylcysteine abrogated β-catenin/HIF pathway activity and restored adenoma architecture. Collectively, the findings implicate accumulation of pY654-β-catenin specifically complexed to HIF1α and Src kinase as critically involved in HIF1α signaling and tumor invasion. The findings also suggest that targeting ROS-dependent aspects of the pY654-β-catenin/ HIF1α pathway may attenuate untoward biological effects of anti-angiogenic agents and tumor hypoxia.
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Hamilton S, Wai E, Tan K, Alexander C, Gascoyne R, Connors J. Treatment and Outcomes of Patients With Limited Stage Primary Cutaneous B-cell Lymphoma. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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97
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Yin X, Tan K, Zhang C, Chen S, Zhang C, Pan X, Li X, Chen F, Jiang H, Lin G, Lu G, Zhang X. O11 Blastocyst trophoderm cells screening by massively parallel sequencing for aneuploidy and imbalanced chromosomal arrangements detection. Reprod Biomed Online 2012. [DOI: 10.1016/s1472-6483(12)60216-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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98
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See A, Peh WM, Tan K. Systemic Autoantibodies in Neuromyelitis Optica: Is There Any Impact on Clinical Outcome? (P07.069). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p07.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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99
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Kam KQ, Tan Shi En G, Tan K, Lim Chuen Hian E, Koh NY, Tan Choon Kiat N. Neurophobia in Medical Students and Junior Doctors in Singapore - Blame the GIK (P07.246). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p07.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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100
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Chong YFV, Tan K. A Survey of Lumbar Puncture Complications and Their Risk Factors: The Influence of Height, Intravenous Hydration and Systolic Blood Pressure on Post-Dural Puncture Headache (P04.250). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p04.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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