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Vestbo J, Tan L, Atkinson G, Ward J. A controlled trial of 6-weeks' treatment with a novel inhaled phosphodiesterase type-4 inhibitor in COPD. Eur Respir J 2009; 33:1039-44. [DOI: 10.1183/09031936.00068908] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Yao YS, Qian B, Chen BZ, Wang R, Tan L. The optimum concentration of levobupivacaine for intra-operative caudal analgesia in children undergoing inguinal hernia repair at equal volumes of injectate. Anaesthesia 2009; 64:23-6. [DOI: 10.1111/j.1365-2044.2008.05688.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yong Y, Tan H, Bee Aik Tan D, Kamarulzaman A, Tan L, French M, Price P. Longitudinal Plasma Antibody Titers in Relation to IRD in HIV Patients Beginning ART. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Tan H, Tan DBA, Yong Y, Kamarulzaman A, Tan L, Lim A, James I, French M, Price P. Immunological Profiles of Immune Restoration Disease Presenting as Mmycobacterial Lymphadenitis or Cryptococcal Meningitis. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Omar SFS, French M, Tan L, Kamarulzaman A, Price P. A Prospective Study on Immune Restoration Disease in HIV-Infected Patients Following Successful ART at UMMC. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Nandi S, Kreyssig A, Tan L, Kim JW, Yan JQ, Lang JC, Haskel D, McQueeney RJ, Goldman AI. Nature of Ho magnetism in multiferroic HoMnO3. PHYSICAL REVIEW LETTERS 2008; 100:217201. [PMID: 18518629 DOI: 10.1103/physrevlett.100.217201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Indexed: 05/26/2023]
Abstract
Using x-ray resonant magnetic scattering and x-ray magnetic circular dichroism, techniques that are element specific, we have elucidated the role of Ho3+ in multiferroic HoMnO3. In zero field, Ho3+ orders antiferromagnetically with moments aligned along the hexagonal c direction below 40 K, and undergoes a transition to another magnetic structure below 4.5 K. In applied electric fields of up to 1 x 10(7) V/m, the magnetic structure of Ho3+ remains unchanged.
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Nian R, Tan L, Choe WS. Polyethyleneimine-Mediated Chemical Extraction of Cytoplasmic His-Tagged Inclusion Body Proteins from Escherichia coli. Biotechnol Prog 2008; 24:417-25. [DOI: 10.1021/bp070304q] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Quek R, Lai G, Tao M, Chan A, Gao F, Yap S, Loong S, Tan L, Sng I, Lim S. 6028 POSTER Late-onset neutropenia is infrequent and self-limiting in patients with diffuse large B-cell lymphoma in complete remission following therapy with rituximab in combination with chemotherapy. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71319-8] [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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Clifton JC, Finley RJ, Gelfand G, Graham AJ, Inculet R, Malthaner R, Tan L, Lim J, Singer J, Lovato C. Development and validation of a disease-specific quality of life questionnaire (EQOL) for potentially curable patients with carcinoma of the esophagus. Dis Esophagus 2007; 20:191-201. [PMID: 17509114 DOI: 10.1111/j.1442-2050.2007.00669.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The objective was to develop, pretest and validate a disease-specific quality of life questionnaire for potentially curable patients with esophageal carcinoma, for use with the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) in order to assess the quality of life associated with the various treatment modalities available for this disease. Questionnaire development phase Patients were enrolled in three centres. Literature reviews, patients, family members, and health care professionals generated 195 items: symptoms (55); emotions (53); physical functioning (17); activities of daily living (ADL) (48); and leisure/social (22). Thirty-eight patients identified items of importance and assigned importance ratings on a 5-point Likert scale. Impact scores were calculated as frequency times mean item importance. Item impact scores<20/100 were excluded. Pearson's correlation co-efficients compared domains with the Medical Outcomes Study SF-20 (MOS SF-20). Fifteen items remained. Questionnaire validation phase EORTC QLQ-C30, Esophageal Quality of Life Questionnaire (EQOL), MOS SF-36 and a Global Rating of Change Questionnaire were completed at baseline, 1 week after baseline but prior to any treatment, 1 month, 3 months, and 6 months after treatment began. Reliability was assessed using paired samples correlations. Responsiveness was assessed between mean scores of changed and unchanged patients, and a responsiveness index was calculated. The MOS SF-36 was used for criterion validity. Construct validity included four a priori predictions. Sixty-five patients were enrolled in four centres in the validation phase. Paired samples correlations were high for all domains (0.749-0.889) indicating good reliability. Symptom, physical function and social domains were responsive to change at all time intervals (P<0.05). Emotional function was responsive at 1 and 3 months, activities of daily living (ADLs) at 1 and 6 months. Magnitude of change was significant when direction of change was stated. Between better and worse, magnitude of change was significant in all domains except at 6 months in symptoms, emotional and physical domains. The minimal clinically important difference was consistently around 0.5 for all domains. Minimal, moderate and large effect ranges were established. Only 2/16 time intervals had poor correlations with the SF-36, establishing criterion validity. Of the four a priori predictions for construct validity, only the second part of one prediction, in the emotional function domain, was not confirmed. We have developed a 15-item questionnaire (EQOL) which has good reliability, responsiveness and validity and is now in use in studies in Canadian centres with the EORTC QLQ-C30.
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Tan L, How C, Ng K, Ong P, Tay W. Plane crazy: a case series of psychiatric presentations at the airport. Eur Psychiatry 2007. [DOI: 10.1016/j.eurpsy.2007.01.1221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Tan L, Lacey S, Melzer M. R2178 The clinical significance of Viridans streptococcal bacteraemia in patients at a district general hospital. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)72017-4] [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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Ng K, How C, Tan L, Ng L, Tay W. Asian cultural influences on dementia in a developed country: a Singapore perspective. Eur Psychiatry 2007. [DOI: 10.1016/j.eurpsy.2007.01.1028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Soo R, Wu J, Aggarwal A, Tao Q, Hsieh W, Putti T, Tan K, Soon W, Lai Y, Mow B, Hsu S, Loh K, Tan L, Tan P, Goh BC. Correction to: Celecoxib reduces microvessel density in patients treated with nasopharyngeal carcinoma and induces changes in gene expression. Ann Oncol 2006; 17: 1625–1630. Ann Oncol 2007. [DOI: 10.1093/annonc/mdm054] [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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Abstract
AIM To assess the survival rate of root filled cracked teeth over a 2-year period in a tertiary institute. METHODOLOGY Forty-nine patients who had root canal treatment completed on their cracked teeth at the National Dental Centre (Singapore) were recalled for a 2-year review. Collected review data included presence of periodontal pocketing, sinus tract and swelling associated with the teeth. The date of extraction was noted if a tooth was missing at review. Pre-treatment data collected were number, extent and location of crack, presence of periodontal pocketing, patients' age and gender, location of cracked teeth, type of teeth and presence of terminal cracked tooth. RESULTS Fifty teeth in 49 patients were included. The Kaplan-Meier estimate of 2-year survival rate was 85.5% (95% confidence interval: 75.5-95.5). Cracked teeth which were the terminal teeth in the dental arch (RR = 4.9, 95% CI: 1.2-2.0, P = 0.04), teeth with pre-root filling periodontal pocketing (RR = 4.9, 95% CI: 1.2-2.0, P = 0.04) and teeth with multiple cracks (RR = infinity, 95% CI: 1.9-infinity, P = 0.01) were more likely to be extracted. CONCLUSIONS Within the limitations of this study, multiple cracks, terminal teeth and pre-root filling pocketing were significant prognostic factors for the survival of root filled cracked teeth.
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Soo RA, Wu J, Aggarwal A, Tao Q, Hsieh W, Putti T, Tan KB, Low JSW, Soon WL, Lai YF, Mow B, Hsu S, Loh KS, Tan L, Tan P, Goh BC. Celecoxib reduces microvessel density in patients treated with nasopharyngeal carcinoma and induces changes in gene expression. Ann Oncol 2006; 17:1625-30. [PMID: 17008411 DOI: 10.1093/annonc/mdl283] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Celecoxib is a selective cyclooxygenase-2 inhibitor with antitumor and antiangiogenic activity. We sought to determine pharmacodynamic change in tumors of patients with nasopharyngeal carcinoma (NPC) treated with celecoxib. METHODS Tumor biopsies were obtained before and after treatment with celecoxib 400 mg b.i.d. for 14 days in patients with newly diagnosed, untreated NPC. Tumor angiogenesis and cell proliferation were assessed by immunohistochemistry and gene expression by microarray analysis. Plasma celecoxib concentrations were obtained on days 8 and 14. RESULTS Paired samples were analyzed in 15 patients. Microvessel density was reduced in post-treatment samples and mean celecoxib levels reached therapeutic levels. Thirty-five genes (27 down-regulated, eight up-regulated) were differentially expressed on microarray analysis (p < 0.001). Down-regulated genes included cell cycle regulation-related (cyclin-dependent kinase 2, YES1), transcription factor (TRIP-Br2), whereas the antigen processing and presentation-related gene HLA-DM B was up-regulated. CONCLUSION Celecoxib reduced angiogenesis and induced tumor transcriptional changes. Further characterization of these transcriptional changes in vivo is needed to provide further insights into the effects of celecoxib in neoplastic tissue. Our findings provide a rationale for clinical studies aimed at assessing the efficacy of celecoxib in the treatment of NPC.
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Chong SA, Vaingankar JA, Chan YH, Jauhar N, Kwok V, Soo SC, Tan L, Verma S. Assessing the quality of care for patients with first-episode psychosis. Singapore Med J 2006; 47:882-5. [PMID: 16990964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
INTRODUCTION This study evaluated the quality of care in an early psychosis intervention programme (EPIP), as compared to standard treatment received by patients prior to the inception of the programme. METHODS The medical records of 50 patients with first-episode psychosis (FEP) who received psychiatric treatment in the calendar year of 2000, i.e. prior to the implementation of EPIP, and 87 FEP patients who were accepted in the EPIP, were reviewed for a period of one year. These patients were aged between 18 and 40 years. Each medical record was reviewed for a list of process indicators, which were identified from the published literature and other treatment guidelines, and covered different domains. RESULTS None of the pre-EPIP patients met all the 13 process indicators, whereas 48 percent of EPIP patients met all the indicators (p-value is less than 0.001). Using the default rate as a proxy of outcome, we found that 19 percent of EPIP patients had defaulted at the end of one year, whereas the default rate was 52 percent for the pre-EPIP patients (p-value is less than 0.001). CONCLUSION It is possible to improve the quality of care in patients with FEP through the use of treatment guidelines, regular monitoring of symptoms and side effects, and periodic audits.
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Tan EK, Zhao Y, Skipper L, Tan MG, Di Fonzo A, Sun L, Fook-Chong S, Tang S, Chua E, Yuen Y, Tan L, Pavanni R, Wong MC, Kolatkar P, Lu CS, Bonifati V, Liu JJ. The LRRK2 Gly2385Arg variant is associated with Parkinson’s disease: genetic and functional evidence. Hum Genet 2006; 120:857-63. [PMID: 17019612 DOI: 10.1007/s00439-006-0268-0] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Accepted: 09/11/2006] [Indexed: 10/24/2022]
Abstract
Evidence of LRRK2 haplotypes associated with Parkinson's disease (PD) risk was recently found in the Chinese population from Singapore, and a common LRRK2 missense variant, Gly2385Arg, was independently detected as a putative risk factor for PD in the Chinese population from Taiwan. To test the association between the Gly2385Arg variant in a large case-control sample of Chinese ethnicity from Singapore, and to perform functional studies of the wild type and Gly2385Arg LRRK2 protein in human cell lines. In a case-control study involving 989 Chinese subjects, the frequency of the heterozygous Gly2385Arg genotype was higher in PD compared to controls (7.3 vs. 3.6%, odds ratio = 2.1, 95% CI: 1.1-3.9, P = 0.014); these values yield an estimated population attributable risk (PAR) of approximately 4%. In a multivariate logistic regression analysis with the disease group (PD vs. controls) as the dependent variable and the genotype as an independent factor with adjustments made for the effect of age and gender, the heterozygous Gly2385Arg genotype remained associated with an increased risk of PD compared to wild type genotype (odds ratio = 2.67, 95% CI: 1.43-4.99, P = 0.002). The glycine at position 2385 is a candidate site for N-myristoylation, and the Gly2385Arg variant replaces the hydrophobic glycine with the hydrophilic arginine, and increases the net positive charge of the LRRK2 WD40 domain. In transfection studies, we demonstrated that both the wild type and Gly2385Arg variant LRRK2 protein localize to the cytoplasm and form aggregates. However, under condition of oxidative stress, the Gly2385Arg variant was more toxic and associated with a higher rate of apoptosis. Our study lends support to the contention that the Gly2385Arg is a common risk factor for PD in the Chinese population. Our bioinformatics and in-vitro studies also suggest that the Gly2385Arg variant is biologically relevant and it might act through pro-apoptotic mechanisms.
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Tan L, McCarthy J, Lyons D. P-27 ATYPICAL GLANDULAR CELLS ON SMEAR – AGE RELATED IMPLICATIONS AND MANAGEMENT. Cytopathology 2006. [DOI: 10.1111/j.1365-2303.2006.00392_13_27.x] [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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Karakousis A, Tan L, Ellis D, Alexiou H, Wormald PJ. An assessment of the efficiency of fungal DNA extraction methods for maximizing the detection of medically important fungi using PCR. J Microbiol Methods 2006; 65:38-48. [PMID: 16099520 DOI: 10.1016/j.mimet.2005.06.008] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2005] [Revised: 06/23/2005] [Accepted: 06/23/2005] [Indexed: 11/26/2022]
Abstract
To date, no single reported DNA extraction method is suitable for the efficient extraction of DNA from all fungal species. The efficiency of extraction is of particular importance in PCR-based medical diagnostic applications where the quantity of fungus in a tissue biopsy may be limited. We subjected 16 medically relevant fungi to physical, chemical and enzymatic cell wall disruption methods which constitutes the first step in extracting DNA. Examination by light microscopy showed that grinding with mortar and pestle was the most efficient means of disrupting the rigid fungal cell walls of hyphae and conidia. We then trialled several published DNA isolation protocols to ascertain the most efficient method of extraction. Optimal extraction was achieved by incorporating a lyticase and proteinase K enzymatic digestion step and adapting a DNA extraction procedure from a commercial kit (MO BIO) to generate high yields of high quality DNA from all 16 species. DNA quality was confirmed by the successful PCR amplification of the conserved region of the fungal 18S small-subunit rRNA multicopy gene.
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Dobos GJ, Tan L, Cohen MH, McIntyre M, Bauer R, Li X, Bensoussan A. Are national quality standards for traditional Chinese herbal medicine sufficient? Current governmental regulations for traditional Chinese herbal medicine in certain Western countries and China as the Eastern origin country. Complement Ther Med 2005; 13:183-90. [PMID: 16150372 DOI: 10.1016/j.ctim.2005.06.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2005] [Accepted: 06/20/2005] [Indexed: 11/30/2022] Open
Abstract
Traditional Chinese herbal Medicine (TCHM) has been gaining interest and acceptance world wide. TCHM provides on the one side promising perspective of scientific interest and on the other side possible health risks if TCHM drugs are not controlled with respect to quality standards or if practitioners for TCHM are not well trained. This paper outlines an introduction to the scientific aspects and potential risks of TCHM therapy followed by a brief, exploratory overview of the current status of TCHM regulations in certain Western countries like the USA, United Kingdom, Germany, Australia and in China as the Eastern origin country of TCHM. Legal foundations to establish quality and safety standards for TCHM crude drugs and ready-made formulas exist in some countries on a local basis but in practice are poorly enforced, where this products have no drug status. In addition practitioners treating patients with TCHM should be well versed in the pharmacology, side effects, and interactions of these substances with Western medicines and should be certified on a regular basis.
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Tartas M, Bouyé P, Koïtka A, Jaquinandi V, Tan L, Saumet JL, Abraham P. Cathodal current-induced vasodilation to single application and the amplified response to repeated application in humans rely on aspirin-sensitive mechanisms. J Appl Physiol (1985) 2005; 99:1538-44. [PMID: 15976365 DOI: 10.1152/japplphysiol.00258.2005] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Assumed to rely on an axon reflex, the current-induced vasodilation (CIV) interferes with the microvascular response to iontophoretic drug delivery. Mechanisms resulting in CIV are likely different at the anode and at the cathode. While studies have been conducted to understand anodal CIV, little information is available on cathodal CIV. The present study investigates CIV observed following 0.1-mA cathodal applications on forearms of healthy volunteers and the possible mechanisms involved. Results are expressed in percentage of the cutaneous heat-induced maximal vascular conductance [%MVC (means ± SE)]. 1) The amplitude of CIV was proportional to the duration of cathodal currents for periods of <1 min: r = 0.99. 2) Two current applications of 10 s, with 10-min interstimulation interval, induced a higher peak value of CIV (79.1 ± 8.6% MVC) than the one obtained with all-at-once 20-s current application (39.5 ± 4.3% MVC, P < 0.05). This amplified vascular response due to segmental application was observed for all tested interstimulation intervals (up to 40 min). 3) Two hours and 3 days following pretreatment with 1-g oral aspirin, the CIV observed following cathodal application, as well as the difference of cathodal CIV amplitude between all-at-once and segmented applications, were reduced. These findings suggest a role of prostaglandins, not only released from endothelial or smooth muscle cells, as direct vasodilator and/or as a sensitizer. Thus aspirin pretreatment could be used to decrease CIV resulting from all-at-once and repeated cathodal application and facilitate the study of the specific vascular effect induced by the drug delivered.
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Liu X, He C, Hao X, Tan L, Li Y, Ong KS. Hyperbranched Blue-Light-Emitting Alternating Copolymers of Tetrabromoarylmethane/Silane and 9,9-Dihexylfluorene-2,7-diboronic Acid. Volume 37, Number 16, August 10, 2004, pp 5965−5970. Macromolecules 2005. [DOI: 10.1021/ma051110z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Li Q, Tan L, Wang C, Li N, Li Y, Xu G, Li J. Polyunsaturated eicosapentaenoic acid changes lipid composition in lipid rafts. Eur J Nutr 2005; 45:144-51. [PMID: 16133744 DOI: 10.1007/s00394-005-0574-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2005] [Accepted: 06/21/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND Polyunsaturated fatty acids (PUFAs) modulate immune responses particularly by affecting T cell function and are applied clinically as adjuvant immunosuppressants in the treatment of various inflammatory diseases. However, the molecular mechanisms of PUFA-induced immunosuppressive effects are not yet elucidated. Membrane lipid rafts are functional plasma membrane microdomains characterized by a unique lipid environment. Since lipid interactions are crucial for the formation of lipid rafts, the immunomodulatory effects of PUFAs may be due to changes of fatty acid composition in lipid rafts. AIM OF THE STUDY We investigated the effects of eicosapentaenoic acid (EPA, 20:5 n - 3) supplementation on modulating lipid composition and fatty acyl substitution in their cytoplasmic and exoplasmic lipid leaflet in lipid rafts. METHODS The human Jurkat E6-1 T cells were cultured in EPA-supplemented medium and the cells treated with stearic acid served as a control. Lipid rafts were isolated by discontinuous sucrose density gradient ultracentrifugation. The lipids in raft and soluble fractions from EPA-treated and control T cells were extracted and separated by gas chromatography. Raft phospholipids were analyzed by mass spectrometry. RESULTS Our results showed that EPA treatment could alter lipid composition resulting in a considerable increase of unsaturated fatty acyl chains in lipid rafts from EPA-treated T cells compared with control cells. Effective incorporation of EPA to rafts was not only in the exoplasmic but also in the cytoplasmic membrane lipid leaflet. EPA treatment altered the lipid environment in lipid rafts. EPA presented an inhibiting effect on Jurkat T cells proliferation and inhibited IL-2Ralpha expression on the surface of T cells. CONCLUSIONS Our data provided evidence for an important modification in lipid composition of membrane lipid rafts and T cell function by EPA supplementation.
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Tan L, Zhao XP, Liu XQ, Ju HX, Li JS. Headspace Liquid-Phase Microextraction of Short-Chain Fatty Acids in Plasma, and Gas Chromatography with Flame Ionization Detection. Chromatographia 2005. [DOI: 10.1365/s10337-005-0604-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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