76
|
Di Valentin T, Alam Y, Ali Alsharm A, Arif S, Aubin F, Biagi J, Booth CM, Bourque S, Burkes R, Champion P, Colwell B, Cripps C, Dallaire M, Dorreen M, Finn N, Frechette D, Gallinger S, Gapski J, Giacomantonio C, Gill S, Goel R, Goodwin R, Grimard L, Grothey A, Hammad N, Hedley D, Jhaveri K, Jonker D, Ko Y, L'espérance M, Maroun J, Ostic H, Perrin N, Rother M, St-Hilaire E, Tehfe M, Thirlwell M, Welch S, Yarom N, Asmis T. Eastern Canadian colorectal cancer consensus conference: application of new modalities of staging and treatment of gastrointestinal cancers. Curr Oncol 2012; 19:169-74. [PMID: 22670096 PMCID: PMC3364767 DOI: 10.3747/co.19.931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The annual Eastern Canadian Colorectal Cancer Consensus Conference was held in Ottawa, Ontario, October 22-23, 2010. Health care professionals involved in the care of patients with colorectal cancer participated in presentation and discussion sessions for the purpose of developing the recommendations presented here. This consensus statement addresses current issues in the management of colorectal cancer, such as the use of epidermal growth factor inhibitors in metastatic colon cancer, the benefit of calcium and magnesium with oxaliplatin chemotherapy, the role of microsatellites in treatment decisions for stage II colon cancer, the staging and treatment of rectal cancer, and the management of colorectal and metastatic pancreatic cancers.
Collapse
|
77
|
Lee J, Ko Y, Kim Y, Lee B, Lim S. 34. The effect of green tea extracts on oxaliplatin-induced peripheral neuropathy in rat. Clin Neurophysiol 2012. [DOI: 10.1016/j.clinph.2011.11.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
78
|
Cukier M, Smith AJ, Milot L, Chu W, Chung H, Fenech D, Herschorn S, Ko Y, Rowsell C, Soliman H, Ung YC, Wong CS. Neoadjuvant chemoradiotherapy and multivisceral resection for primary locally advanced adherent colon cancer: a single institution experience. Eur J Surg Oncol 2012; 38:677-82. [PMID: 22632848 DOI: 10.1016/j.ejso.2012.05.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Accepted: 05/01/2012] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Although there is an extensive body of literature on the role of neoadjuvant chemoradiotherapy (CRT) in the management of rectal cancer, its role in primary locally advanced adherent colon cancer (LAACC) is unclear. OBJECTIVE To analyzed the outcomes of neoadjuvant CRT and multivisceral resection in the management of LAACC patietns. METHODS We retrospectively reviewed our institutional Colorectal Carcinoma Database for 33 patients with potentially resectable, non-metastatic primary LAACC who received neoadjuvant CRT followed by multivisceral resection. CRT consisted of external beam radiation (45-50 Gy in 25 daily fractions) and concurrent 5-FU infusion (225 mg/m(2)/day). RESULTS There were 21 males and 12 females. Median age was 64 (31-83) and median follow-up was 36 months. All patients had microscopically clear resection margins (R0). Complete pathologic response was documented in 1 patient (3%) and 66% had ypT4b disease. Post-operative complications were observed in 36% of patients with no 30-day mortality. The 3-year overall survival and 3-year disease-free survival were 85.9% and 73.7% respectively. Two patients developed a local recurrence. CONCLUSIONS Neoadjuvant CRT and en-bloc multivisceral resection may result in high rates of R0 resection and excellent local control with acceptable morbidity and mortality in selected patients with LAACC.
Collapse
|
79
|
Park JH, Ko Y, Kim WJ, Jang MS, Yang MH, Han MK, Oh CW, Park SH, Lee J, Lee J, Bae HJ, Gorelick PB. Is asymptomatic hemorrhagic transformation really innocuous? Neurology 2012; 78:421-6. [PMID: 22282643 DOI: 10.1212/wnl.0b013e318245d22c] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES Asymptomatic hemorrhagic transformation (HT) is not associated with immediate deterioration of patients with acute ischemic stroke. However, it is unclear whether it is clinically innocuous with respect to long-term outcome. The aim of this study was to determine the impact of asymptomatic HT on 3-month outcome. METHODS A consecutive series of 1,618 patients, hospitalized between January 2004 and August 2007 for ischemic stroke within 7 days from symptom onset were identified in a prospective stroke registry database. Those who had no evidence of acute cerebral ischemia on diffusion-weighted MRI, who did not undergo T2-weighted gradient echo MRI, whose modified Rankin Scale (mRS) score at 3 months after stroke onset was not available, or who had symptomatic HT were excluded. The odds ratio (OR) of asymptomatic HT was calculated for the full distribution of mRS score and adjusted for variables with p < 0.25 with respect to their associations with asymptomatic HT or functional outcome. RESULTS Of 1,412 patients eligible for the study, 100 (7.1%) had asymptomatic HT. Patients who experienced asymptomatic HT were more likely to have cardioembolic stroke, to receive thrombolytic therapy, to receive anticoagulation with heparin, and to have a higher initial NIH Stroke Scale score. The crude and adjusted ORs of asymptomatic HT for an increment of mRS score at 3 months were 2.94 (95% confidence interval 2.05-4.24) and 1.90 (1.27-2.82), respectively. CONCLUSIONS Our study shows that the odds of a worse outcome are increased by a factor of 2 in patients with asymptomatic HT compared with those without HT after acute ischemic stroke.
Collapse
|
80
|
Kim HJ, Cha ES, Ko Y, Kim J, Kim SD, Lee WJ. Pesticide poisonings in South Korea: findings from the National Hospital Discharge Survey 2004-2006. Hum Exp Toxicol 2012; 31:751-8. [PMID: 22249390 DOI: 10.1177/0960327111431709] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Pesticide poisoning stands as a major public health issue worldwide. The objective of this study was to examine the epidemiologic characteristics of pesticide-related hospitalizations in South Korea. METHODS Data from the Korea National Hospital Discharge Survey were analyzed to describe the epidemiologic characteristics of pesticide poisoning among hospitalized patients from 2004 through 2006. Pesticide-related hospitalizations were identified using the International Classification of Diseases, Tenth Revision codes. National estimates of pesticide-related hospitalizations were calculated using sampling weights for number of hospitalizations. RESULTS A total of 25,982 pesticide-related hospitalizations were estimated during the years 2004-2006, yielding an average annual pesticide-related hospitalization rate of 17.8 per 100,000 population in South Korea. Age-specific rates for pesticide-related hospitalization increased with age, with the highest rate noted among those aged 70 or above. The majority of pesticide-related hospitalization was cases of intentional poisoning in rural areas. Seasonal variation in the rate was observed, with summer being the highest among both men and women. CONCLUSIONS Pesticide-related hospitalization is prevalent and demonstrates demographic and seasonal and regional variations. More effective strategies to reduce pesticide-related hospitalizations are required in South Korea.
Collapse
|
81
|
Kwon O, Lee J, Choi H, Hong H, Ko Y. 209 Do Patients With Severe Acute Calculous Cholangitis Have Specific Characteristics at Computed Tomography? Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
82
|
Yoon J, Juhn K, Yoon S, Ko Y, Lim JH. DSS may be an alternative to SSS in cryopreservation of mouse cleavage embryos. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
83
|
Tam VC, Ko Y, Mittmann N, Kumar K, Hassan S, Cheung MC, Chan KK. Cost-effectiveness of systemic therapies for metastatic pancreatic cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.6114] [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
|
84
|
Kumar K, Chan K, Ko Y. A survey of patient/family use of internet for medical information on cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e16551] [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
|
85
|
Emmenegger U, Berry SR, Booth CM, Sridhar SS, Winquist E, Bandali N, Chow A, Kerbel R, Ko Y. A phase II study of maintenance therapy with temsirolimus (TEM) after response to first-line docetaxel (TAX) chemotherapy in castration-resistant prostate cancer (CRPC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e15152] [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
|
86
|
Wolpin BM, O'Reilly EM, Ko Y, Blaszkowsky LS, Rarick MU, Rocha Lima CMS, Ritch PS, Chan E, Spratlin JL, Macarulla T, McWhirter E, Pezet D, Lichinitser M, Roman LD, Hartford A, Jackson L, Vincent M, Reyno LM, Hidalgo M. Global, multicenter, open-label, randomized phase II trial comparing gemcitabine (G) with. G plus AGS-1C4D4 (A) in patients (pts) with metastatic pancreatic cancer (mPC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
87
|
Emmenegger U, Berry SR, Booth C, Sridhar SS, Winquist E, Bandali N, Chow A, Kerbel RS, Ko Y. Phase II study of maintenance therapy with temsirolimus (TEM) after response to first-line docetaxel (TAX) chemotherapy in castration-resistant prostate cancer (CRPC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.7_suppl.160] [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
160 Background: TAX is the standard first-line chemotherapy for CRPC. However, a number of questions remain regarding the optimal use of TAX following maximal response. Aside from intermittent TAX, maintenance therapy with well-tolerated agents such as the mTOR inhibitor TEM could be one strategy to prolong treatment response and the chemotherapy-free interval, without significantly compromising quality of life. In fact, the mTOR pathway is involved in many aspects of CRPC, and mTOR inhibitors have demonstrated significant anti-CRPC activity in preclinical testing. Methods: CRPC pts eligible for this single-arm, multicenter phase II trial must have received between 6 to 8 cycles of first-line TAX (75 mg/m2 q3wks) with documented treatment response by PSA (>50% decline from baseline) or RECIST criteria. 30 pts will be enrolled and administered weekly TEM (25 mg iv × 4/cycle). The primary endpoint is time to treatment failure (TTF, by RECIST or symptomatic progression). Secondary endpoints include safety (NCI-CTCAE v3.0), quality of life (FACT-P, PPI), changes in PSA doubling time and time to PSA progression, objective tumor response rate (RECIST), and overall survival. We will also study correlative endpoints using plasma and peripheral blood mononuclear cells (i.e., markers of mTOR inhibition, of antiangiogenic TEM effects and of intratumoral hypoxia/acidosis, the latter as potential predictive markers). Results: 10 pts have been enrolled to date: mean age 68 (range 52-80), prior definitive local therapy (7)—radiation (6), prostatectomy (1), mean PSA at entry 99.28 (2.3- 380.7), ECOG 0 (4) or 1 (6), prior cycles of TAX 6 (6) or 8 (4), sites of metastasis—bone (8), lymph nodes (4), visceral (3). 6 pts have been discontinued due to treatment failure after a mean of 5.3±1.9 cycles (range 3-8) - RECIST (1), symptomatic (2), combined (3). 4 pts are on cycle 1-2-8-9, respectively. TEM has been generally well tolerated without unexpected side-effects, but may have contributed to worsening lymphedema in 1 pt. Conclusions: TEM maintenance therapy in CRPC pts that have responded to first-line TAX is well tolerated and appears to result in meaningful TTF. No significant financial relationships to disclose.
Collapse
|
88
|
Sridhar SS, Canil CM, Mukherjee SD, Winquist E, Elser C, Eisen A, Reaume MN, Zhang L, Ko Y. Results of a phase II study of single-agent nab-paclitaxel in platinum-refractory second-line metastatic urothelial carcinoma (UC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.7_suppl.241] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
241 Background: There is currently no standard second-line chemotherapy for platinum- refractory UC. Both paclitaxel and docetaxel are commonly used but response rates are < 20% and no survival advantage has been shown. In this multi-institutional phase II study, we evaluated the efficacy and tolerability of a new albumin-bound nanoparticle formulation of paclitaxel, known as Abraxane (ABI-007) as a single agent in patients with platinum-refractory metastatic UC. Methods: Patients with measurable UC, progressing on or after first-line platinum-based chemotherapy were enrolled onto this two-stage trial. ABI-007 was given at 260 mg/m2 IV q3weekly until progression. Clinical evaluation, CBC and blood chemistries were performed every cycle with restaging CT scans every 2 cycles. Results: Accrual is now complete with 48 patients enrolled. Baseline characteristics: Male: Female 40:8; median age 68; ECOG Performance Status 0:1:2, 15:24:8. 248 cycles were delivered: median 5.5 cycles/pt with 17/48 pts (35%) requiring dose reductions. Most frequent adverse events (AE) were alopecia (12%), fatigue (12%), pain (12%), neuropathy (9%) and nausea (4%). The most frequent grade 3+ AE were pain (45%), hypertension (14%), fatigue (8%), joint stiffness (5%), neuropathy (4%) and weakness (4%). Forty patients are evaluable for response: 1 (2.5%) complete response (CR), 11 (28%) partial responses (PR), 9 (23%) stable disease (SD) and 20 (49%) progressive disease. One patient was inevaluable for response, 7 patients are too early for evaluation. Conclusions: Single-agent ABI-007 was well tolerated with a response rate (CR+PR) of 33% (12/36) and a clinical benefit rate (CR+PR+SD) of 58% (21/36), representing one of the highest reported response rates to date in the second-line UC setting. These results suggest further study of ABI-007 in urothelial carcinoma is warranted. No significant financial relationships to disclose.
Collapse
|
89
|
Parise JB, Tan K, Norby P, Ko Y, Cahill C. Examples of Hydrothermal Titration and Real Time X-Ray Diffraction in the Synthesis of Open Frameworks. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-453-103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractHydrothermal titration (HTT) techniques represent a new synthetic strategy for the production of open frameworks. As an example, initial digestion of amorphous GeS2 in the presence of tetraethyl ammonium hydroxide (TEAOH) at 100°C is followed by injection of Ag+ into this mixture to condense the [Ge4S10]4− clusters and form a framework consisting of 8-ring channels bounded by alternating GeS-clusters and Ag+. The rational use of this apparatus depends upon determining the timing of injection. Insight into the changes occurring during reactant digestion is provided by real time synchrotron X-ray powder diffraction. Changes in the the system dimethylamine-Sb-S have been followed in real time at different temperatures. The transformation from mixtures of DMA, Sb and S to the known open phase DMA-SbS-SB8 was followed by observing monochromatic X-ray scattering detected on an imaging plates over a 8 hr period with one continuous exposure.
Collapse
|
90
|
Wong S, Lee J, Ko Y, Chong MF, Lam CK, Tang WE. Perceptions of insulin therapy amongst Asian patients with diabetes in Singapore. Diabet Med 2011; 28:206-11. [PMID: 21219431 DOI: 10.1111/j.1464-5491.2010.03195.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS The objective of this study was to determine the prevalence of insulin refusal amongst Singaporean patients with Type 2 diabetes mellitus, to compare perceptions regarding insulin therapy use between patients who were willing to use insulin and those who were not and to identify demographic factors that might predict insulin refusal. METHODS A cross-sectional interviewer-administered survey incorporating demographic variables and 17 perceptions regarding insulin use (14 negative and three positive) was conducted among a sample of 265 patients attending a public primary healthcare centre. RESULTS Seven of every 10 patients expressed unwillingness to use insulin therapy (70.6%). The greatest differences in perceptions between patients willing to use insulin therapy and those who were not included fear of not being able to inject insulin correctly (47.4 vs. 70.6%), fear of pain (44.9 vs. 65.8%), belief that insulin therapy would make it difficult to fulfil responsibilities at work and home (46.2 vs. 66.8%) and belief that insulin therapy improved diabetes control (82.1 vs. 58.3%). A tertiary level of education was associated with willingness to use insulin (odds ratio 3.3, confidence interval 1.8-6.1), and significant differences in perceptions were present in patients with different educational levels. CONCLUSIONS Insulin refusal is an important problem amongst our patients with Type 2 diabetes mellitus. Findings of this study suggest that interventions aimed at increasing insulin therapy use should focus on injection-related concerns, perceived lifestyle adaptations and correction of misconceptions. Different interventions may also be required for patients of different educational groups.
Collapse
|
91
|
Ko Y, Liu CW, Chen SS, Chiu KY, Sun YW, Maruthasalam S. First Report of Gummosis Disease of Japanese Apricot Caused by Botryosphaeria dothidea in Taiwan. PLANT DISEASE 2011; 95:77. [PMID: 30743674 DOI: 10.1094/pdis-05-10-0384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Japanese apricot (Prunus mume Sieb. et Zucc.) is an economically important fruit crop grown on more than 10,000 ha in Taiwan. During May 2008, twigs of Japanese apricot trees in the commercial farms of Renai Region (Nantou County) showed symptoms of gummosis disease, with 12 to 18% of the trees affected. The disease was more severe on trees weakened by drought stress. Limb and twig infections began around lenticles as small, sunken, discolored lesions at the margins of wounds. Following infection, cortical cells collapsed, bark became depressed, and blisters developed, which were often cracked with whitish gummy exudation. Necrotic areas were seen on the cortical tissues. Leaves showed yellowing and drooping. In winter months, numerous black pycnidia or perithecia formed on infected twigs. Single conidial isolates of the pathogen were obtained from diseased twigs on acidified potato dextrose agar (PDA) incubated at 25 ± 1°C for 3 days. On the basis of morphological characteristics, the fungus was identified as Botryosphaeria dothidea (3). Conidia (17 to 22.6 × 4.3 to 6.0 μm) were hyaline, unicellular, and spindle shaped. Asci (78 to 125 × 15 to 17 μm) were hyaline, bitunicate, clavate, and eight spored. Ascospores (18 to 22 × 7.0 to 8.2 μm) were hyaline and spindle shaped or fusoid. The pathogen identity was further confirmed by PCR amplification and sequencing of ribosomal DNA internal transcribed spacer from the fungus with the primers ITS5: 5'-GGAAGTAAAAGTCGTAACAAGG-3' and ITS4: 5'-TCCTCCGCTTATTGATATGC-3' (4), and a representative sequence was deposited in NCBI GenBank (Accession No. GU594225). The sequence showed 99 to 100% homology with previously characterized strains of B. dothidea (GenBank Accession Nos. EU441944, DQ177876, and AY786320). Pathogenicity tests were conducted with inoculum prepared by culturing the fungus on PDA under a continuous photoperiod of 128 ± 25 μE·m-2·s-1 at 25°C for 3 days. Shallow cuts (3 × 3 × 3 mm) were made on 12- to 15-month-old healthy twigs with a scalpel and inoculated with either a 5-mm mycelial disc or 0.5 ml of conidial suspension (105 conidia/ml) of the fungus. Two twigs on each of six trees were inoculated. Inoculated areas were covered with moist, sterile cotton and the entire twigs were enclosed in plastic bags. Twigs were inoculated with 5-mm PDA discs or sterile water for controls. The symptoms described above were observed on all inoculated twigs 14 days after inoculation, whereas control twigs remained healthy. Reisolation from the inoculated twigs consistently yielded B. dothidea. In Taiwan, B. dothidea has been reported as the causal agent of gummosis of peach (1) and fruit ring rot of pear (2); however, to our knowledge, this is the first report of B. dothidea causing gummosis on Japanese apricot. References: (1) Y. Ko et al. Plant Pathol. Bull. 1:70, 1992. (2) Y. Ko et al. Plant Prot. Bull. (Taiwan) 35:211, 1993. (3) B. Slippers et al. Mycologia 96:83, 2004. (4) T. J. White et al. In: Amplification and Direct Sequencing of Fungal Ribosomal RNA Genes for Phylogenetics. Academic Press. San Diego, CA, 1990.
Collapse
|
92
|
van der Zee PM, Biró E, Trouw LA, Ko Y, de Winter RJ, Hack CE, Sturk A, Nieuwland R. C-reactive protein in myocardial infarction binds to circulating microparticles but is not associated with complement activation. Clin Immunol 2010; 135:490-5. [PMID: 20138585 DOI: 10.1016/j.clim.2010.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Revised: 12/22/2009] [Accepted: 01/09/2010] [Indexed: 11/17/2022]
Abstract
BACKGROUND C-reactive protein (CRP) is elevated in patients with acute myocardial infarction (AMI). When CRP binds to membrane phospholipids or Fc receptors, it activates the complement system. Recent studies show that CRP can be exposed on cell-derived microparticles (MP) and is associated complement activation. OBJECTIVES We studied complement activation on circulating MP in AMI patients and healthy controls. METHODS MP were isolated from plasma of AMI patients (n=21) and sex- and age-matched healthy individuals (n=10), and analyzed by flow cytometry for bound complement components (C1q, C4, C3) and complement inhibitor and activator molecules (C4bp, CRP, serum amyloid P component, immunoglobulins IgM and IgG). Concurrently, the levels of fluid phase complement activation products and inhibitor and activator molecules were determined. RESULTS Fluid phase CRP, MP with bound CRP (CRP + MP), and C3 activation products were elevated in AMI patients compared to controls (P=0.032, P=0.031 and P=0.023, respectively), and fluid phase CRP correlated with CRP+ MP (r=0.84, P<0.001). Although CRP+ MP were elevated, they were not associated with C1q+ MP (r=0.32, P=0.174). In contrast, IgG+ MP were associated with C1q+ MP (r=0.73, P<0.001), C4+ MP and C3+ MP (r=0.78 and r=0.87, respectively; both P<0.001), and C4bp (r=0.63, P=0.004). In healthy individuals, CRP+ MP were strongly associated with C1q+ MP (r=0.82, P=0.007), which in turn were associated with C4+ MP and C3+ MP (r=0.68, P=0.032 and r=0.68, P=0.031, respectively). CONCLUSIONS Despite CRP-associated complement activation on the surface of MP in healthy individuals and a strong correlation between MP-bound CRP and fluid phase CRP in AMI patients, the MP-associated complement activation is IgG- but not CRP-dependent in AMI patients.
Collapse
|
93
|
Wallace D, Ko Y. Cancer clinical trial acronyms presented at ASCO Annual Meetings. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e16558] [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
|
94
|
Emmenegger U, Sridhar SS, Booth CM, Kerbel R, Berry SR, Ko Y. A phase II study of maintenance therapy with temsirolimus (TEM) after response to first-line docetaxel (TAX) chemotherapy in castration-resistant prostate cancer (CRPC). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.tps246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
95
|
Sridhar SS, Canil CM, Mukherjee SD, Winquist E, Elser C, Eisen A, Chung A, Ko Y. A phase II study of single-agent nab-paclitaxel as second-line therapy in patients with metastatic urothelial carcinoma. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.tps231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
96
|
Kim YC, Ko Y, Hong SD, Kim KY, Lee YH, Chae C, Choi Y. Presence ofPorphyromonas gingivalisand plasma cell dominance in gingival tissues with periodontitis. Oral Dis 2010; 16:375-81. [DOI: 10.1111/j.1601-0825.2009.01649.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
97
|
Ko Y, Liu CW, Chen SS, Chen CY, Yao KS, Maruthasalam S, Lin CH. First Report of Fruit Rot of Loquat Caused by an Alternaria sp. in Taiwan. PLANT DISEASE 2010; 94:481. [PMID: 30754488 DOI: 10.1094/pdis-94-4-0481b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
During March 2007, a fruit rot disease was observed in several loquat (Eriobotrya japonica (Thunberg) Lindley) fields located in Taichung, Nantou, and Miaoli counties. Loquat is a valuable fruit crop grown predominantly in central Taiwan, and hence, even a minor yield loss by this new disease is economically significant. Symptoms on fruits initially appeared as small lesions (<1 mm) that later developed into light-to-dark brown, circular, larger (7 mm), sunken lesions, indicating invasion of a pathogen into the fruit. Pieces of rotted fruit tissue (1 × 1 × 1 mm) were immersed for 1 min in 3% commercial bleach, followed by 70% ethanol, cultured on potato dextrose agar (PDA), and incubated under constant fluorescent light (185 ± 35 μE·m-2·s-1) at 24°C for 2 days. Three single conidial isolates (AS1 to AS3) were selected and used in morphological and pathogenicity studies. All three isolates were identified as an Alternaria sp. (1-3) and formed abundant, dark brown mycelium when cultured on PDA with light at 24°C. Conidiophores were 60 to 89 × 3 to 5 μm, densely fasciculate, cylindrical, simple or branched, and had distinct conidial scars. Conidia were 12 to 74 × 6 to 14 μm, golden brown, straight or curved, obclavate with beaks measuring half the length of the conidium, and observed in chains of 10 or more spores with four to seven transverse septa and several longitudinal septa. Pathogenicity tests were conducted twice by inoculating eight surface-sterilized wounded or unwounded fruits with each of the three isolates in each experiment. Two cuts (1 × 1 × 1 mm) were made on each fruit 3 cm apart with a sterile scalpel, and a 300-μl spore suspension (2 × 105 conidia per ml) was placed on each wound. Similarly, a 300-μl spore suspension was placed on unwounded fruits and air dried for 5 min. Control fruits were similarly treated with sterile water. Inoculated fruits were enclosed in a plastic bag and kept at 24 ± 1°C. Symptoms of soft rot were observed on 60% (unwounded) and 100% (wounded) of inoculated fruits 5 days after inoculation, while control fruits did not develop disease symptoms. Reisolation from the symptomatic fruits consistently yielded an Alternaria sp. This fungus previously has been reported as the causal agent of fruit rot or black spot of papaya, mango, kiwifruit, pear, and carambola from Australia, India, Malaysia, South Africa, and the United States (1-3). To our knowledge, this is the first report of fruit rot of loquat caused by an Alternaria sp. in Taiwan. To manage this disease, growers may resort to fungicidal sprays followed by bagging of fruits to reduce pre- and postharvest losses. References: (1) A. L. Jones and H. S. Aldwinckle. Compendium of Apple and Pear Diseases. The American Phytopathological Society. St. Paul, MN, 1990. (2) R. C. Ploetz. Diseases of Tropical Fruit Crops. CABI Publishing. Wallingford, Oxfordshire, UK, 2003. (3) R. C. Ploetz et al. Compendium of Tropical Fruit Diseases. The American Phytopathological Society. St. Paul, MN, 1994.
Collapse
|
98
|
Goh P, Harris K, Napolskikh J, Chow E, Sinclair E, Emmenegger U, Lemon S, Yee A, Wynnychuk L, Myers J, Danjoux C, Ko Y. New multidisciplinary prostate bone metastases clinic: first of its kind in Canada. ACTA ACUST UNITED AC 2010; 14:9-12. [PMID: 17576458 PMCID: PMC1891195 DOI: 10.3747/co.2007.101] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Prostate cancer is the most common non-skin malignancy in men. Almost all men who die from prostate cancer have hormone-refractory prostate cancer with metastasis to bone. Emerging supportive treatments—including chemotherapy, bisphosphonates, and surgery—require integration that is optimized in a multidisciplinary setting. A multidisciplinary clinic for bone metastases has been in place at Toronto–Sunnybrook Regional Cancer Centre since 1999, combining orthopedic surgery, radiation oncology, interventional radiology, and palliative medicine for all patients with bone metastases. The addition of a prostate-focused multidisciplinary clinic integrates these services for patients with advanced prostate cancer.
Collapse
|
99
|
Park J, Park S, Kim S, Ko Y, Kim K, Jung C, Lee J, Lee H. Autologous Peripheral Blood Stem Cell Transplantation With Induction Of Autologous Graft-Versus-Host Disease In Acute Myeloid Leukemia – Long-Term F/U Data. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
100
|
Ko Y, Lo NN, Yeo SJ, Yang KY, Yeo W, Chong HC, Thumboo J. Rasch analysis of the Oxford Knee Score. Osteoarthritis Cartilage 2009; 17:1163-9. [PMID: 19409293 DOI: 10.1016/j.joca.2009.04.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 04/02/2009] [Accepted: 04/03/2009] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Use Rasch analysis to examine the psychometric properties of the Oxford Knee Score (OKS), particularly in respect to unidimensionality, and consistency of item functioning before and after total knee replacement and across age and gender groups. METHODS The 12-item OKS was administered to 1,712 patients before the surgery, and 1,322 and 855 patients were administered the instrument repeatedly at the 6-month and 2-year postoperative assessments, respectively. Data were fitted to the Rasch partial credit model with the Winsteps program. Differential item functioning (DIF) analysis was performed, and fit statistics in combination with principal components analysis of the residuals were used to test the unidimensionality assumption. The fit criteria were set at 1.5 and 2.0 for infit mean-square (MNSQ) and outfit MNSQ, respectively. RESULTS At baseline, item difficulty ranged from -1.86 to 1.78 logits, and person measures had a mean+/-SD of -0.01+/-0.89. Misfit items were "limping" and "night pain" in preoperative data and "limping" and "kneeling" in postoperative data. After removing items limping and kneeling and recoding item night pain, none of the items misfit at each of the time points and there was stability of item difficulty ordering across time. In the modified OKS set, five items displayed DIF by age and three by gender. CONCLUSION The original OKS had adequate targeting and good coverage of knee severity levels in preoperative patients. The modified 10-item OKS data fit the Rasch model and had stable item difficulty ordering over time.
Collapse
|