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Bubalo JS, Takemoto MH, Herrington J, Miller CF, Wong L, Fisher A, Roberson EM, Wilmann P, Williams C, Edwards MS, Blanke CD. A multi-center, open label trial to evaluate the efficacy and tolerability of aprepitant (A) and palonosetron (P) for the prevention of chemotherapy-induced nausea and vomiting in colorectal cancer (CRC) patients receiving FOLFOX chemotherapy. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.20684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Armenian S, Sun C, Francisco L, Steinberger J, Kurian S, Wong L, Sharp J, Sposto R, Forman S, Bhatia S. Late clinical heart failure (CHF) following hematopoietic cell transplantation (HCT). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.9510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Lee P, Bradbury RA, Sy J, Hughes L, Wong L, Falk G, Chen R. Phaeochromocytoma and mixed corticomedullary tumour - a rare cause of Cushing's syndrome and labile hypertension in a primigravid woman postpartum. Clin Endocrinol (Oxf) 2008; 68:492-4. [PMID: 17868399 DOI: 10.1111/j.1365-2265.2007.03038.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chua HN, Sung WK, Wong L. An efficient strategy for extensive integration of diverse biological data for protein function prediction. Bioinformatics 2007; 23:3364-73. [DOI: 10.1093/bioinformatics/btm520] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Fequiere P, Wong B, Miles L, Gregersen N, Wong L, Hopkin R. M.P.4.16 Atypical clinical presentation of an infant with short chain acyl-CoA dehydrogenase (SCAD) deficiency. Neuromuscul Disord 2007. [DOI: 10.1016/j.nmd.2007.06.342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Cohen SJ, Zalupski M, Modiano M, Conkling P, Mahadevan D, Wong L, Smith D, Dorr RT, Boytim M, Hersh EM. Phase I trial of imexon, Inj. plus gemcitabine in patients with advanced previously untreated pancreatic adenocarcinoma. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.15058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
15058 Background: Imexon for inj. (Amplimexon®, AMP) is an aziridine-containing iminopyrrolidone which causes G2 arrest, accumulation of reactive oxygen species, and induction of apoptosis in pancreatic cancer cells. AMP demonstrated synergy with gemcitabine (GEM) in preclinical pancreatic cancer models. This phase I study of AMP plus GEM was undertaken to determine the maximum tolerated dose (MTD) and dose-limiting toxicities (DLT). Secondary endpoints were pharmacokinetics for both agents (PK) and tumor response. Methods: Patients (pts) with previously untreated advanced pancreatic adenocarcinoma received one of two dosing regimens. The first 19 received 30 minute AMP IV days 1–5 and 15–19 followed by 30 minute GEM IV days 1, 8 and 15 Q4 wks (Regimen A). Dosing was modified after 19 pts to administer both AMP and GEM over 30 minutes days 1, 8 and 15 every 4 weeks (Regimen B). Dose levels (AMP/GEM, in mg/m2) for Regimen A: 200/800, 280/800, 200/1000, and 280/1000, and for Regimen B: 280/1000, 335/1000, 390/1000, 540/1000, and 750/1000. The current cohort is 1000/1000. Pts were assessed for response after cycles 2, 5 and 8. PK and pharmacodynamic (plasma thiol depletion) measurements were obtained during cycle one. Results: Forty-six pts have been treated to date, with 36 having complete toxicity data and evaluable. Pt characteristics: M/F (24/12), Age (mean 60.4 years, range 43–75), ECOG PS 0/1 (56%, 44%), metastatic/locally advanced (91%, 9%). The 36 pts have completed 122.5 cycles of therapy (median 2, range 0.5–12). Common toxicities: anemia (77%), fatigue (71%), nausea (60%), fever (54%), and leukopenia (54%). DLT were 1/6 at 280/1000 (Regimen A - febrile neutropenia), 1/6 at 280/1000 (Regimen B - gr 3 hypotension, gr 4 renal failure), and 1/9 at 390/1000 (gr 3 hyperbilirubinemia). Accrual continues at 1000/1000. Of 36 pts, 4 have had partial responses and 14 stable disease. PK and plasma thiol analysis are ongoing. Conclusions: Imexon can be administered safely with full dose gemcitabine. Accrual continues to define the combination MTD. The response rate in this phase I study compares favorably with historical gemcitabine monotherapy, and further phase II evaluation of this combination in advanced pancreatic cancer is warranted. No significant financial relationships to disclose.
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Eng C, Maurel J, Scheithauer W, Wong L, Lutz M, Middleton G, Stoller R, Zubel A, Lu H, Sobrero AF. Impact on quality of life of adding cetuximab to irinotecan in patients who have failed prior oxaliplatin-based therapy: The EPIC trial. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.4003] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4003 Background: EPIC, a multinational phase III clinical trial examined the impact of cetuximab on survival in pretreated EGFR- expressing metastatic colorectal (MCRC) patients (pts). Pts were randomized to either cetuximab 400 mg/m2 followed by 250 mg/m2 weekly and irinotecan 350 mg/m2 q 3 weeks or irinotecan alone. The primary endpoint was overall survival (OS) with quality of life being one of the secondary endpoints. Methods: Health Related Quality of life (HRQoL) of pts in this trial was assessed through the EORTC QLQ-C30 questionnaire, version 3.0. Pts completed the questionnaire pretreatment, every second cycle, and at first follow-up visit. HRQoL was compared between treatment arms using a Wei-Lachin test. Results: Baseline demographics were balanced between the arms. Cetuximab plus irinotecan (n=648) was superior to irinotecan alone (n=650) in progression-free survival (HR 0.69, p<.0001) and response rate (16.4 vs 4.2%, p<.0001). OS was comparable between the arms, but may have been influenced by subsequent therapy: 46% of subjects in the irinotecan alone arm received cetuximab, 89% of them in combination with irinotecan. Baseline HRQoL scores did not significantly differ between treatment arms for 11 of the 15 scales. For 4 scales (Social Functioning, Fatigue, Dyspnea, and Appetite Loss), there were statistically significant differences in baseline scores, in favor of the cetuximab plus irinotecan arm. Non- compliance rates (missing questionnaires) were similar between the arms. A statistically significant difference was noted for pts in the cetuximab plus irinotecan arm in HRQoL on 10 of the 15 scales as compared to patients in the irinotecan arm, with the scores of the cetuximab plus irinotecan arm consistently higher, as noted by the scales of Global Health Status (p=.047), pain (p< .0001), and nausea (p<.0001). Conclusions: In addition to statistically significant improvements in PFS and RR in patients receiving cetuximab plus irinotecan compared with irinotecan alone, HRQoL was better preserved on the combination arm with less deterioration in symptom scores (pain, nausea, insomnia), as well as global health status scores. No significant financial relationships to disclose.
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Wong L, Go L, Koss W, Wajima T. P035 Significance of bone marrow storage iron in patients with myelodysplastic syndromes. Leuk Res 2007. [DOI: 10.1016/s0145-2126(07)70105-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Smid J, Shah SC, Varma AJ, Wong L. Solute binding and catalysis by poly(vinylbenzo-18-crown-6). ACTA ACUST UNITED AC 2007. [DOI: 10.1002/polc.5070640119] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wong L, See HT, Khoo-Tan HS, Low JS, Ng WT, Low JJ. Combined adjuvant cisplatin and ifosfamide chemotherapy and radiotherapy for malignant mixed müllerian tumors of the uterus. Int J Gynecol Cancer 2007; 16:1364-9. [PMID: 16803531 DOI: 10.1111/j.1525-1438.2006.00560.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The role of adjuvant therapy for malignant mixed müllerian tumors of the uterus has not been established. Our aim was to review our experience with sequential adjuvant therapy using cisplatin and ifosfamide chemotherapy and radiotherapy after surgical staging. A retrospective study of 43 patients from 1995 to 2004 was undertaken. Survival was calculated using the Kaplan-Meier method and compared by the log-rank test. The Cox proportional hazard regression model was used to assess the effect of treatment on survival after adjustment for age and stage. Twenty-eight patients received adjuvant chemotherapy and 28 patients had adjuvant radiotherapy. Twenty-one patients underwent sequential adjuvant chemotherapy and radiotherapy. Tumor recurrence occurred in 14 patients at a median duration of 10 months. The overall 2- and 5-year survival was 64% and 60%, respectively. The 2- and 5-year survival for stage I and II diseases was both 95%, while the 2-year survival for stage III and IV diseases was 25%. Patients who underwent sequential adjuvant therapy had an improved survival compared with patients who did not follow the protocol (P= 0.024). Our results with sequential adjuvant therapy are encouraging and justify future randomized trials.
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Sissons CH, Anderson SA, Wong L, Coleman MJ, White DC. Microbiota of plaque microcosm biofilms: effect of three times daily sucrose pulses in different simulated oral environments. Caries Res 2007; 41:413-22. [PMID: 17713343 DOI: 10.1159/000104801] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Accepted: 12/01/2006] [Indexed: 11/19/2022] Open
Abstract
AIM To explore the Ecological Plaque Hypothesis for dental caries. To test modification of the microbiota of dental plaque microcosm biofilms by sucrose pulsing during growth in two different simulated oral fluids, and with a urea-induced plaque pH elevation. METHODS Plaque microcosm biofilms were cultured in an 'artificial mouth' with and without 6-min 5% w/v sucrose pulses every 8 h in an environment of continuously supplied saliva-like defined medium with mucin (DMM), or basal medium mucin (BMM, a high-peptone-yeast extract oral fluid analogue), and also in DMM + 10 mmol/l urea, with sucrose pulsing. Forty plaque species were quantified by checkerboard DNA:DNA hybridization analysis. RESULTS Sucrose pulsing extended rapid plaque growth in DMM and BMM, inducing major microbiota changes in DMM but not in BMM. In DMM, some streptococci and lactobacilli were unaffected while others implicated in caries, together with Candida albicans and Capnocytophaga gingivalis, increased. Aerobic, microaerophilic and major anaerobic species decreased. Elevation of the pH(max) from 6.4 to 7.0 had almost no effect on the microbiota. BMM plaques were distinct from DMM plaques with particularly low levels of Candida albicans and Actinomyces. CONCLUSIONS Modest sucrose exposure in a saliva-like environment causes profound changes in the developmental self-organization of plaque microcosms, supporting the Ecological Plaque Hypothesis. Nevertheless, there is significant stability in microbial composition with varying pH near neutrality. Increases in levels of specific bacteria in response to sucrose could be characteristic of organisms particularly important in caries.
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Agrawal V, Staiano J, Wong L, Butler J, Searle A, Barton D, Harris P. 246 ORAL A 12 year experience of flap reconstruction following resection of gynaecological malignancies at the Royal Marsden Hospital, London. Eur J Surg Oncol 2006. [DOI: 10.1016/s0748-7983(06)70681-3] [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] Open
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Gerondakis S, Grumont R, Gugasyan R, Wong L, Isomura I, Ho W, Banerjee A. Unravelling the complexities of the NF-κB signalling pathway using mouse knockout and transgenic models. Oncogene 2006; 25:6781-99. [PMID: 17072328 DOI: 10.1038/sj.onc.1209944] [Citation(s) in RCA: 236] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The nuclear factor-kappaB (NF-kappaB) signalling pathway serves a crucial role in regulating the transcriptional responses of physiological processes that include cell division, cell survival, differentiation, immunity and inflammation. Here we outline studies using mouse models in which the core components of the NF-kappaB pathway, namely the IkappaB kinase subunits (IKKalpha, IKKbeta and NEMO), the IkappaB proteins (IkappaBalpha, IkappaBbeta, IkappaBvarepsilon and Bcl-3) and the five NF-kappaB transcription factors (NF-kappaB1, NF-kappaB2, c-Rel, RelA and RelB), have been genetically manipulated using transgenic and knockout technology.
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Abubakr Y, Eng C, Wong L, Pautret V, Scheithauer W, Maurel J, Kroening H, Lutz M, Zubel A, Sobrero A. Cetuximab plus irinotecan for metastatic colorectal cancer (mCRC): Safety analysis of 800 patients in a randomized phase III trial (EPIC). J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.3556] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3556 Background: EPIC is a randomized phase III study comparing cetuximab plus irinotecan to irinotecan in second-line metastatic, EGFR-expressing mCRC patients (pts) (target N=1,300 pts). Following an independent Data Safety Monitoring Board (DSMB) review of 400 pts., the pooled safety data was presented at ASCO 2005 (#3580). The DSMB has recently reviewed safety data on the first 800 patients. Methods: Patients with EGFR-expressing mCRC who had failed first-line oxaliplatin in combination with a fluoropyrimidine and an ECOG performance status ≤ 2 were randomized to either Arm A (cetuximab 400 mg/m2 followed by 250 mg/ m2 weekly and irinotecan 350 mg/ m2 q 3 weeks) or to Arm B (irinotecan 350 mg/ m2 q 3 weeks). A pooled safety analysis is presented. Results: Eight hundred patients were randomized from May 2003 to March 2005 in Europe, Australia, Asia, and the US: 309 women and 491 men, with a median age of 61 years (range 21–90) and ECOG performance status (PS) of: 0= 53%, 1= 42%, 2= 5%. Seventeen pts received no study therapy and are excluded from the analysis. A total of 3,629 chemotherapy cycles were administered to the 783 pts with a median of 4 cycles per pt (range 1–23). Four (0.5%) subjects experienced severe infusion reactions: 2 grade 3 and 2 grade 4, none were fatal. In this pooled analysis, 59 deaths occurred within 30 days of last study therapy: 45 disease-related, 5 study drug related, 6 due to other causes, and 3 with unknown etiology. A summary table of adverse events (AE’s) is included. Conclusions: The DSMB raised no concerns after reviewing the safety data from 800 pts. In this pooled analysis characteristic toxicities of cetuximab and irinotecan do not appear to be increased, incidences and severities are similar to the earlier safety report based on the initial 400 patients. The study is currently nearing completion of accrual. [Table: see text] [Table: see text]
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Whitehead RP, McCoy S, Wollner IS, Wong L, Harker WG, Hoff PM, Gold PJ, Billingsley KG, Blanke CD. Phase II trial of depsipeptide (NSC-630176) in colorectal cancer patients who have received either one or two prior chemotherapy regimens for metastatic or locally advanced, unresectable disease: A Southwest Oncology Group study. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.3598] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3598 The treatment for metastatic colorectal cancer has markedly improved but the disease is still not curable, and additional active agents need to be found. Depsipeptide is a histone deacetylase inhibitor that has shown activity against human solid tumor cell lines and promising results in murine model systems. This phase II trial was undertaken to determine its activity in patients with advanced colorectal cancer. Eligibility requirements included measurable disease, either metastatic or locally advanced and not surgically resectable, Zubrod performance status of 0–1, and adequate renal, hepatic, hematologic and cardiac function. Prior surgery or radiation therapy was allowed and patients were required to have received either one or two prior chemotherapy regimens for advanced disease. A two-stage design was used designed to detect a difference in the null hypothesis of 5% response vs. an alternative 20% response, with 20 eligible patients to be accrued initially followed by an additional 20 patients if one or more confirmed responses were observed. The study closed after the first stage, with 28 patients registered. Three patients are ineligible, two who did not meet requirements for serum magnesium level, and one whose baseline labs were performed more than 14 days prior to registration. One eligible patient never received treatment and is not analyzable for any endpoint. For the 24 eligible and analyzable patients, median age was 58.6 years (range 31–84) with 14 males. Performance status was 0 in 16 patients and 1 in 8. Ten patients received 1 prior chemotherapy regimen and 14 received 2 prior regimens. There were no grade 4 or higher toxicities. The most common grade 2 or 3 toxicities were anorexia, fatigue, nausea, and dehydration. No objective responses were observed. Four patients had stable disease, 15 showed increasing disease, 3 had symptomatic deterioration, and 2 had assessment inadequate. The current Kaplan-Meier estimate of 6 month overall survival is 69% (95% CI 50%-88%) with a median survival of 8.4 months. Depsipeptide does not show significant anti-tumor activity in previously treated patients with advanced colorectal cancer. No significant financial relationships to disclose.
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Wong L, See HT, Khoo-Tan HS, Low JS, Ng WT, Low JJ. Combined adjuvant cisplatin and ifosfamide chemotherapy and radiotherapy for malignant mixed müllerian tumors of the uterus. Int J Gynecol Cancer 2006. [DOI: 10.1136/ijgc-00009577-200605000-00063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The role of adjuvant therapy for malignant mixed müllerian tumors of the uterus has not been established. Our aim was to review our experience with sequential adjuvant therapy using cisplatin and ifosfamide chemotherapy and radiotherapy after surgical staging. A retrospective study of 43 patients from 1995 to 2004 was undertaken. Survival was calculated using the Kaplan–Meier method and compared by the log-rank test. The Cox proportional hazard regression model was used to assess the effect of treatment on survival after adjustment for age and stage. Twenty-eight patients received adjuvant chemotherapy and 28 patients had adjuvant radiotherapy. Twenty-one patients underwent sequential adjuvant chemotherapy and radiotherapy. Tumor recurrence occurred in 14 patients at a median duration of 10 months. The overall 2- and 5-year survival was 64% and 60%, respectively. The 2- and 5-year survival for stage I and II diseases was both 95%, while the 2-year survival for stage III and IV diseases was 25%. Patients who underwent sequential adjuvant therapy had an improved survival compared with patients who did not follow the protocol (P = 0.024). Our results with sequential adjuvant therapy are encouraging and justify future randomized trials.
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Albright CL, Glanz K, Wong L, Dela Cruz MR, Abe L, Sagayadoro TL. Knowledge and Attitudes About Deceased Donor Organ Donation in Filipinos: A Qualitative Assessment. Transplant Proc 2005; 37:4153-8. [PMID: 16387067 DOI: 10.1016/j.transproceed.2005.10.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2005] [Indexed: 11/25/2022]
Abstract
Fewer ethnic minorities, especially Asian-Americans, become organ donors. There are cultural, religious, and personal barriers to becoming a designated organ donor. Factors that promote or inhibit organ donation in Asians, especially Filipinos, are not well understood. We conducted a series of focus groups to identify barriers and facilitators to organ donation (deceased donor) among Filipinos. Six focus groups were conducted with church members, adolescents, nurses, physicians, organ recipients, and organ donor families. The mean age of adult participants (n = 57) was 52.3 +/- 15 years, 83% were Catholic, and 72% were female. A qualitative theme analysis methodology identified dominant themes related to organ donation in the participants. The major themes were: awareness of organ donation (38%), family beliefs (25%), religion/spirituality (10%), attitude/emotions (10%), personal experience with organ donation (8%), health profession (6%), and cultural issues (3%). Seventy-five percent of the comments about awareness reflected a positive awareness of cultural issues regarding organ donation, and the rest reflected a lack of awareness or misconceptions. Almost every theme was mentioned in all six focus groups. Understanding a specific ethnic group's knowledge, attitudes, and cultural beliefs regarding organ donation is important in the development of educational campaigns to encourage organ donation in ethnic minority populations.
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Mably M, Mankotia M, Cavlovic P, Tam J, Wong L, Pantazopoulos P, Calway P, Scott PM. Survey of aflatoxins in beer sold in Canada. ACTA ACUST UNITED AC 2005; 22:1252-7. [PMID: 16356889 DOI: 10.1080/02652030500241884] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Between March 1998 and March 2002, 304 samples of domestic (Canadian) and imported beers from 36 countries were picked up for the determination of aflatoxins B1, B2, G1 and G2. Twelve samples were positive with aflatoxins greater than the limit of quantitation (LOQ) (aflatoxin B1, 4.4 ng l(-1); aflatoxin B2, 3.4 ng l(-1); aflatoxin G1, 11.2 ng l(-1); and aflatoxin G2, 6.2 ng l(-1)). Five samples from Mexico, two samples from Spain and one from Portugal contained aflatoxin B1. Four samples from India contained aflatoxins B1 and B2. The remaining samples contained less than the LOQ for aflatoxins B1, B2, G1 and G2. The analytical method for this survey was based on that of Scott and Lawrence (Scott PM, Lawrence GA. 1997. Determination of aflatoxins in beer. Journal of AOAC International 80:1229-1234.). Aflatoxins B1, B2, G1 and G2 were determined at parts per trillion (ng l(-1)) levels in beer by immunoaffinity column cleanup followed by derivatization with trifluoroacetic acid and reversed-phase liquid chromatography with fluorescence detection.
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Wong SM, Hui ACF, Lo SK, Chiu JH, Poon WF, Wong L. Single vs. two steroid injections for carpal tunnel syndrome: a randomised clinical trial. Int J Clin Pract 2005; 59:1417-21. [PMID: 16351673 DOI: 10.1111/j.1368-5031.2005.00696.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
We investigated the efficacy of a single vs. double steroid injections in the treatment of carpal tunnel syndrome (CTS) in a randomised double-blind controlled trial. Patients with idiopathic CTS were randomised into (i) one group receiving a baseline methylprednisolone acetate injection plus a saline injection 8 weeks later and (ii) a second group receiving methylprednisolone acetate injection at baseline and at 8 weeks. The primary outcome was the Global Symptom Score (GSS). Forty patients were recruited. By 40 weeks, the mean GSS improved from 25.6 to 14.1 in the single-injection group whereas from 26.7 to 12.6 in the reinjection group, but there was no significant difference in GSS between the two groups (p = 0.26). There were also no significant differences in terms of electrophysiological and functional outcomes. The results suggest that an additional steroid injection confers no added benefit to a single injection in terms of symptom relief.
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Gralow J, Green S, Lew D, Barlow W, Dammann K, Somlo G, Rivkin S, Taylor S, Wong L, Livingston R. SWOG S0102: A phase II study of docetaxel (DOC) and vinorelbine (VNR) + filgrastim for HER-2 negative, stage IV breast cancer. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.567] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Shalom A, Friedman T, Wong L. Burns and diabetes. ANNALS OF BURNS AND FIRE DISASTERS 2005; 18:31-33. [PMID: 21990975 PMCID: PMC3187958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/13/2004] [Indexed: 05/31/2023]
Abstract
Diabetes is often considered a risk factor for poor wound healing and increased complication rates for plastic surgery procedures. Burn injury in diabetic patients may have implications for the length of stay and number of operations required. We therefore we examined the characteristics of diabetic patients admitted to our burn unit and the impact of their condition on their hospital course. Charts of all patients with diabetes admitted to the burn unit from 1995 to 2000 were reviewed (n = 73). Demographic data, percent body surface area burned, anatomical location of the burn, number of surgical procedures required, length and cost of stay, and outcome were noted. The control population included 150 consecutive patients without diabetes treated during the same period. Diabetic patients were older and underwent a higher number of surgical procedures, with increased length of stay and increased mortality, despite an equivalent body surface area burned. They had a higher incidence of scald burns in the lower extremities than the non-diabetic population. This work shows that diabetic patients constitute a unique group. They are significantly older, have an increased rate of surgical interventions, increased hospital stay, and significantly increased mortality compared to a control group with similar surface area burns. This group is also more likely to have scald burns in the lower extremities, mostly due to diabetic neuropathy. This work emphasizes the importance of education and prevention programmes directed towards this group of patients, in order to decrease morbidity, mortality, and hospital costs.
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Leizorovicz A, Turpie AGG, Cohen AT, Wong L, Yoo MC, Dans A. Epidemiology of venous thromboembolism in Asian patients undergoing major orthopedic surgery without thromboprophylaxis. The SMART study. J Thromb Haemost 2005; 3:28-34. [PMID: 15634263 DOI: 10.1111/j.1538-7836.2004.01094.x] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND In Asian patients undergoing surgery, the incidence of venous thromboembolism (VTE) is thought to be low relative to Western patients, and the routine use of thromboprophylaxis is controversial. OBJECTIVES The aim of this work was to study the epidemiology of VTE in Asian patients undergoing orthopedic surgery without thromboprophylaxis. PATIENTS AND METHODS We performed a prospective observational study of a cohort of consecutive Asian patients hospitalized for total hip or knee replacement or hip fracture surgery without thromboprophylaxis. The primary study outcome was the incidence of the composite of symptomatic VTE or sudden death at hospital discharge. This outcome was also assessed at 1 month's follow-up. RESULTS Between April 2001 and July 2002, 2420 patients were enrolled. Median age was 68 years and the median duration of hospital stay was 13 days. The rate of symptomatic VTE or sudden death as notified by investigators was 2.3%[55 patients, 99% confidence interval (CI) 1.6, 3.2] and 1.2% (28 patients, 99% CI 0.7, 1.8) after adjudication by an independent committee. Chronic heart failure, varicose veins and a history of VTE were independent risk factors (P < 0.05) for the occurrence of the primary endpoint. At 1 month's follow-up, the incidence of adjudicated symptomatic VTE or sudden death was 1.5% (35/2264 patients). CONCLUSION In Asian patients, the incidence of symptomatic VTE after major orthopedic surgery is not low, consistent with the rates observed in Western countries. The use of thromboprophylaxis should be considered in Asian patients undergoing such high-risk surgical procedures.
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Wong L, Dobin S, Ladd D, Koss W, Wajima T. P-3 Transfusion dependency:Independent prognostic factor for patients with myelodysplastic syndrome. Leuk Res 2005. [DOI: 10.1016/s0145-2126(05)80067-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hui ACF, Cheung PT, Tang ASY, Fu M, Wong L, Kay R. Clinical and electrophysiological features in Chinese patients with Kennedy’s disease. Clin Neurol Neurosurg 2004; 106:309-12. [PMID: 15297006 DOI: 10.1016/j.clineuro.2004.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2003] [Revised: 01/22/2004] [Accepted: 02/03/2004] [Indexed: 10/26/2022]
Abstract
Kennedy's disease is a X-linked neuromuscular disorder caused by an expanded trinucleotide repeat in the androgen receptor gene. To ascertain the clinical diagnosis of Kennedy's disease in a Chinese population, we used a rapid, accurate PCR-based sizing method for the CAG repeat allelotype. The clinical and electrophysiological features of affected patients are described. The CAG repeats ranged from 43 to 53 and were inversely correlated with the age of onset (r = -0.63; P < 0.005).
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150
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Bolan NS, Wong L, Adriano DC. Nutrient removal from farm effluents. BIORESOURCE TECHNOLOGY 2004; 94:251-260. [PMID: 15182831 DOI: 10.1016/j.biortech.2004.01.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2003] [Revised: 01/15/2004] [Accepted: 01/15/2004] [Indexed: 05/24/2023]
Abstract
The objectives of the study were: (i) to examine the efficiency of nutrient removal during the treatment of dairy farm effluent in a two-pond system, and (ii) to produce an inexpensive but effective nutrient trap which could be recycled as a nutrient source or soil mulch. The concentration of chemical oxygen demand (COD), biological oxygen demand (BOD), nitrogen (N), phosphorus (P) and potassium (K) in a two-pond system used to treat dairy farm effluent was monitored over a period of 7 months. The retention of nutrients by two porous materials was examined both in the laboratory batch (zeolite and bark) and pilot-scale field (bark) experiments. The results indicated that biological treatment of farm effluents using the two-pond system was not effective in the removal of nutrients, which are likely to become pollutant when discharged to waterways. Both the bark and zeolite materials were effective in the removal of N, P and K from effluent. These materials can be placed in the second (i.e., aerobic) pond to treat effluents, which can then be discharged to streams with minimum impact on water quality. The nutrient-enriched porous materials can be recycled as a source of nutrients and soil conditioner.
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