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Zhang Y, Fan L, Liu S, Zhou N, Ding K, Peng P, Anderson E, Addy M, Cheng Y, Liu Y, Li B, Snyder J, Chen P, Ruan R. Microwave-assisted co-pyrolysis of brown coal and corn stover for oil production. BIORESOURCE TECHNOLOGY 2018; 259:461-464. [PMID: 29605465 DOI: 10.1016/j.biortech.2018.03.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/13/2018] [Accepted: 03/15/2018] [Indexed: 06/08/2023]
Abstract
The controversial synergistic effect between brown coal and biomass during co-pyrolysis deserves further investigation. This study detailed the oil production from microwave-assisted co-pyrolysis of brown coal (BC) and corn stover (CS) at different CS/BC ratios (0, 0.33, 0.50, 0.67, and 1) and pyrolysis temperatures (500, 550, and 600 °C). The results showed that a higher CS/BC ratio resulted in higher oil yield, and a higher pyrolysis temperature increased oil yield for brown coal and coal/corn mixtures. Corn stover and brown coal showed different pyrolysis characteristics, and positive synergistic effect on oil yield was observed only at CS/BC ratio of 0.33 and pyrolysis temperature of 600 °C. Oils from brown coal mainly included hydrocarbons and phenols whereas oils from corn stover and coal/corn mixtures were dominated by ketones, phenols, and aldehydes. Positive synergistic effects were observed for ketones, aldehydes, acids, and esters whereas negative synergistic effects for hydrocarbons, phenols and alcohols.
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Vigneault E, Morton G, Parulekar WR, Niazi TM, Springer CW, Barkati M, Chung P, Koll W, Kamran A, Monreal M, Ding K, Loblaw A. Randomised Phase II Feasibility Trial of Image-guided External Beam Radiotherapy With or Without High Dose Rate Brachytherapy Boost in Men with Intermediate-risk Prostate Cancer (CCTG PR15/ NCT01982786). Clin Oncol (R Coll Radiol) 2018; 30:527-533. [PMID: 29903505 DOI: 10.1016/j.clon.2018.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 05/10/2018] [Accepted: 05/12/2018] [Indexed: 12/01/2022]
Abstract
AIMS We conducted a multicentre feasibility study to assess the ability to randomise patients between image-guided radiotherapy (IGRT) and IGRT + high dose rate (HDR) brachytherapy boost and to adhere to appropriate radiation quality assurance standards. MATERIALS AND METHODS The primary end point was to determine the ability to randomise 60 patients over an 18 month period. Arm 1 (IGRT) patients received 78 Gy in 39 fractions or 60 Gy in 20 fractions (physician's preference), whereas arm 2 (IGRT + HDR) received 37.5 Gy in 15 fractions with HDR boost of 15 Gy. The secondary end points included >grade 3 acute genitourinary and gastrointestinal toxicity, using Common Terminology Criteria for Adverse Events version 4.0 at 3 months, validation of a prospectively defined radiation oncology quality assurance to assess treatment compliance. All analyses were descriptive; no formal comparisons between treatment arms were carried out. RESULTS Between April 2014 and September 2015, 57 National Comprehensive Cancer Network (NCCN)-defined intermediate-risk prostate cancer patients were randomised between IGRT alone (arm 1; n = 29) and IGRT plus HDR brachytherapy boost (arm 2; n = 28). Overall, 93% received the treatment as randomised. There were four patients (one on IGRT arm 1 and three patients on the IGRT + HDR arm 2) who were treated differently from randomisation assignment. For the 29 patients receiving IGRT (arm 1), there were 14 cases reported with minor deviations and three with major deviations. For patients on IGRT + HDR (arm 2), there were 18 cases reported with minor deviations and two with major deviations. At 3 months in the IGRT group (arm 1), one patient reported grade 3 diarrhoea, whereas in the IGRT + HDR group (arm 2), two patients reported grade 3 haematuria. No other gastrointestinal and genitourinary toxicities were reported. CONCLUSION The pilot study showed the feasibility of randomisation between treatment with IGRT alone versus IGRT + HDR boost. Treatment compliance was good, including adherence to quality assurance standards.
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Essel K, Behbakht K, Lai T, Evans E, Dvorak J, Ding K, Konecny G, Moore K. PARPi after PARPi in epithelial ovarian cancer. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Buechel M, Dey A, Dwivedi S, Crim A, Banerjee Mustafi S, Zhang R, Ding K, Moore K, Bhattacharya R. Targeting BMI1 for the treatment of endometrial cancer. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Liu N, Ding K, Wang JQ, Jia SC, Wang JP, Xu TS. Detoxification, metabolism, and glutathione pathway activity of aflatoxin B1 by dietary lactic acid bacteria in broiler chickens. J Anim Sci 2018; 95:4399-4406. [PMID: 29108062 DOI: 10.2527/jas2017.1644] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Lactic acid bacteria (LAB) and the glutathione (GSH) pathway are protective against aflatoxin, but information on the effect of LAB on aflatoxin metabolism and GSH activity in farm animals is scarce. This study aimed to investigate the effects of LAB and aflatoxin B (AFB) on growth performance, aflatoxin metabolism, and GSH pathway activity using 480 male Arbor Acres broiler chickens from d 1 to 35 of age. Diets were arranged in a 2 × 2 factorial design, including AFB at 0 or 40 µg/kg of feed and LAB at 0 or 3 × 10 cfu/kg of feed, and the LAB was a mixture of equal amounts of , , and . The results showed that there were highly significant ( < 0.01) effects of AFB toxicity, LAB protection, and their interaction on ADFI, ADG, and G:F of broilers during d 1 to 35. Compared with the AFB diet, the LAB diet reduced ( < 0.05) the residues of AFB in the liver, kidney, serum, ileal digesta, and excreta on d 14 by 121.5, 80.6, 43.7, 47.0, and 26.5%, respectively, and on d 35 by 40.6, 60.2, 131.7, 37.9, and 32.9%, respectively, whereas the LAB diet increased ( < 0.05) the contents of aflatoxin M, a metabolite of AFB, in the liver, kidney, serum, and ileal digesta on d 14 by 98.2, 154.2, 168.6, 19.1, and 34.1%, respectively, and in the kidney and serum on d 35 by 32.6 and 142.2%, respectively. For the activity of the GSH pathway in the liver and duodenal mucosa, there were significant ( ≤ 0.01) effects of LAB and AFB on reduced GSH, glutathione S-transferases (GST), and glutathione reductase (GR) on d 14 and 35; compared with the control diet, the LAB diet increased ( < 0.05) GSH, GST, and GR by a range of 11.6 to 86.1%, and compared with the AFB diet, the LAB diet increased ( < 0.05) GSH, GST, and GR by a range of 24.1 to 146.9%. In the liver, there were interactions ( < 0.05) on GSH and GST on d 14 and on GSH on d 35; in the mucosa, interactions were significant ( ≤ 0.01) on GSH and GR on d 14 and on GST on d 35. It can be concluded that LAB is effective in the detoxification of AFB by modulating toxin metabolism and activating the GSH pathway in animals.
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Zhou J, Liu S, Zhou N, Fan L, Zhang Y, Peng P, Anderson E, Ding K, Wang Y, Liu Y, Chen P, Ruan R. Development and application of a continuous fast microwave pyrolysis system for sewage sludge utilization. BIORESOURCE TECHNOLOGY 2018; 256:295-301. [PMID: 29455097 DOI: 10.1016/j.biortech.2018.02.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 06/08/2023]
Abstract
A continuous fast microwave-assisted pyrolysis system was designed, fabricated, and tested with sewage sludge. The system is equipped with continuous biomass feeding, mixing of biomass and microwave absorbent, and separated catalyst upgrading. The effect of the sludge pyrolysis temperature (450, 500, 550, and 600 °C) on the products yield, distribution and potentially energy recovery were investigated. The physical, chemical, and energetic properties of the raw sewage sludge and bio-oil, char and gas products obtained were analyzed using elemental analyzer, GC-MS, Micro-GC, SEM and ICP-OES. While the maximum bio-oil yield of 41.39 wt% was obtained at pyrolysis temperature of 550 °C, the optimal pyrolysis temperature for maximum overall energy recovery was 500 °C. The absence of carrier gas in the process may be responsible for the high HHV of gas products. This work could provide technical support for microwave-assisted system scale-up and sewage sludge utilization.
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Liu N, Ding K, Wang J, Deng Q, Gu K, Wang J. Effects of lactic acid bacteria and smectite after aflatoxin B 1 challenge on the growth performance, nutrient digestibility and blood parameters of broilers. J Anim Physiol Anim Nutr (Berl) 2018; 102:953-961. [PMID: 29638014 DOI: 10.1111/jpn.12901] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 03/12/2018] [Indexed: 11/30/2022]
Abstract
This study aimed to investigate the effect of lactic acid bacteria (LAB) and smectite on the growth performance, nutrient digestibility and blood parameters of broilers that were fed diets contaminated with aflatoxin B1 (AFB1 ). A total of 480 newly hatched male Arbor Acres broilers were randomly allocated into four groups with six replicates of 20 chicks each. The broilers were fed diets with the AFB1 (40 μg/kg) challenge or without (control) it and supplemented with smectite (3.0 g/kg) or LAB (4.0 × 1010 CFU/kg) based on the AFB1 diet. The trial lasted for 42 days. The results showed that during days 1-42 of AFB1 challenge, the feed intake (FI) and body weight gain (BWG) were depressed (p < .05). The inclusion of LAB and smectite increased (p < .05) the BWG by 71.58 and 41.89 g/bird, respectively, which reached the level of the control diet (p ≥ .05), but there were no differences (p ≥ .05) in performance between LAB and smectite. LAB and smectite also increased (p < .05) the apparent total tract digestibility of the crude protein. Regarding the blood parameters, AFB1 decreased (p < .05) the levels of red blood cell count, haematocrit, mean corpuscular volume, haemoglobin, albumin and total protein. In the meantime, the AFB1 increased (p < .05) leucocyte counts, urea nitrogen, cholesterol, total bilirubin, creatinine, glutamic-pyruvic transaminase, glutamic oxaloacetic transaminase and alkaline phosphatase. By contrast, LAB and smectite affected (p < .05) these parameters in the opposite direction. It can be concluded that after the AFB1 challenge, LAB and smectite have similar effects on the growth and health of the broilers, suggesting that LAB could be an alternative against AFB1 in commercial animal feeds.
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Yerushalmi R, Dong B, Chapman JW, Goss PE, Pollak MN, Burnell MJ, Levine MN, Bramwell VHC, Pritchard KI, Whelan TJ, Ingle JN, Shepherd LE, Parulekar WR, Han L, Ding K, Gelmon KA. Impact of baseline BMI and weight change in CCTG adjuvant breast cancer trials. Ann Oncol 2018; 28:1560-1568. [PMID: 28379421 DOI: 10.1093/annonc/mdx152] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Indexed: 12/12/2022] Open
Abstract
Background We hypothesized that increased baseline BMI and BMI change would negatively impact clinical outcomes with adjuvant breast cancer systemic therapy. Methods Data from chemotherapy trials MA.5 and MA.21; endocrine therapy MA.12, MA.14 and MA.27; and trastuzumab HERA/MA.24 were analyzed. The primary objective was to examine the effect of BMI change on breast cancer-free interval (BCFI) landmarked at 5 years; secondary objectives included BMI changes at 1 and 3 years; BMI changes on disease-specific survival (DSS) and overall survival (OS); and effects of baseline BMI. Stratified analyses included trial therapy and composite trial stratification factors. Results In pre-/peri-/early post-menopausal chemotherapy trials (N = 2793), baseline BMI did not impact any endpoint and increased BMI from baseline did not significantly affect BCFI (P = 0.85) after 5 years although it was associated with worse BCFI (P = 0.03) and DSS (P = 0.07) after 1 year. BMI increase by 3 and 5 years was associated with better DSS (P = 0.01; 0.01) and OS (P = 0.003; 0.05). In pre-menopausal endocrine therapy trial MA.12 (N = 672), patients with higher baseline BMI had worse BCFI (P = 0.02) after 1 year, worse DSS (P = 0.05; 0.004) after 1 and 5 years and worse OS (P = 0.01) after 5 years. Increased BMI did not impact BCFI (P = 0.90) after 5 years, although it was associated with worse BCFI (P = 0.01) after 1 year. In post-menopausal endocrine therapy trials MA.14 and MA.27 (N = 8236), baseline BMI did not significantly impact outcome for any endpoint. BMI change did not impact BCFI or DSS after 1 or 3 years, although a mean increased BMI of 0.3 was associated with better OS (P = 0.02) after 1 year. With the administration of trastuzumab (N = 1395) baseline BMI and BMI change did not significantly impact outcomes. Conclusions Higher baseline BMI and BMI increases negatively affected outcomes only in pre-/peri-/early post-menopausal trial patients. Otherwise, BMI increases similar to those expected in healthy women either did not impact outcome or were associated with better outcomes. Clinical Trials numbers CAN-NCIC-MA5; National Cancer Institute (NCI)-V90-0027; MA.12-NCT00002542; MA.14-NCT00002864; MA.21-NCT00014222; HERA, NCT00045032;CAN-NCIC-MA24; MA-27-NCT00066573.
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Hao D, Sengupta A, Ding K, Leighl N, Shepherd F, Seymour L, Weljie A. P2.01-055 Examining Metabolomics as a Prognostic Marker in Metastatic Non–Small Cell Lung Cancer Patients Undergoing First-Line Chemotherapy. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rao A, Coquia S, De Jong R, Gourin C, Page B, Latronico D, Dah S, Clark S, Schultz J, Rosati L, Fakhry C, Wong J, Quon H, Ding K, Kiess A. Biodegradable Hydrogel Spacer Injection for Contralateral Submandibular Gland Sparing in Radiation Therapy for Head and Neck Cancers. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1477] [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]
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Dockery L, Tew W, Moore K, Ding K. Tolerance and Toxicity of the PARP Inhibitor Olaparib in Older Women with Ovarian Cancer. Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.07.029] [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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Rao A, Feng Z, Shin E, He J, Waters K, Coquia S, De Jong R, Rosati L, Su L, Li D, Jackson J, Clark S, Schultz J, Hutchings D, Kim S, Hruban R, Wong J, Narang A, Herman J, Ding K. Novel Use of a Hydrogel Spacer to Separate the Head of the Pancreas and Duodenum for Radiation Therapy for Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Karim S, Ding K, Bradbury P, Ellis P, Mittman N, Xiaoqun Sun X, Millward M, Liu G, Sun S, Stockler M, Cohen V, Blais N, Sangha R, Boyer M, Sasidharan R, Lee C, Shepherd F, Goss G, Seymour L, Leighl N. Costs of dacomitinib versus placebo in pretreated unselected patients (pts) with advanced NSCLC: CCTG BR.26. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx375.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Sarcon A, Ghadri J, Cammann V, Ding K, Kato K, Gili S, Templin C. P1079Mortality data in TTS: new insights from the intertak Registry. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1079] [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: 11/14/2022] Open
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Crim A, Rowland M, Ruskin R, Dvorak J, Greenwade M, Walter A, Gillen J, Ding K, Moore K, Gunderson C. Evaluation of the efficacy and toxicity profile associated with intraperitoneal chemotherapy use in older women. Gynecol Oncol 2017; 146:268-272. [PMID: 28583323 DOI: 10.1016/j.ygyno.2017.05.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/11/2017] [Accepted: 05/24/2017] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Intraperitoneal (IP) chemotherapy (CT) for treatment of epithelial ovarian cancer (EOC) has been shown to provide a substantial OS advantage. This study aims to compare the toxicity and benefits of IP CT in patients ≥70 with those <70. METHODS We performed a single institution retrospective review of patients diagnosed with Stage IIA-IIIC EOC from 2000 to 2013 who received IP CT. Clinicopathologic characteristics were extracted, and survival was calculated. RESULTS 133 patients were included with 100 pts. <70years old and 33 pts. ≥70years old. Clinical trial enrollment was similar despite age. In trial enrolled patients, older patients received statistically fewer cycles of therapy (6.4 vs 5.8, p=0.002) but had similar dose delays (0.9 vs 0.7, p=0.72), and modifications (0.9 vs 0.36, p=0.11). Median PFS (27 vs 31months) and OS (71 and 62months) were not statistically different. Grade 3/4 neutropenia was significantly worse in the older patients (82% vs 100%, p=0.04). Neuropathy grade ≥2 and other non-hematologic toxicities were not different between age groups. CONCLUSIONS Despite completing fewer cycles of IP CT, older EOC patients had comparable survival to younger patients. The population of older patients receiving IP CT in this study were on clinical trial and likely to be heartier than the general older population. IP CT appears well tolerated and effective among select older patients and is likely under-utilized outside of clinical trials.
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Crim A, Perkins V, Husain S, Ding K, Holman L. Feasibility of two-antibody vs four-antibody mismatch repair protein immunohistochemistry as initial screening for Lynch syndrome in patients with endometrial adenocarcinoma. Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.03.112] [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]
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Gunderson C, Papaila A, Ding K, Jernigan A, Bedell S, Miller D, Barnes D, Moore K. Weekly paclitaxel for recurrent ovarian cancer: Does weekly administration during primary therapy impact efficacy and toxicity at recurrence? Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.03.359] [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]
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Vigneault E, Morton G, Perulekar W, Niazi T, Springer G, Barkati M, Chung P, Koll W, Kamran A, Montreal M, Ding K, Loblaw A. EP-1774: Randomized phase II trial of IGRT with or without HDR boost in intermediate-risk prostate cancer. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32136-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Wang J, Zhong Z, Zhang B, Ding K, Xue Z, Deng A, Ruan R. Upgraded bio-oil production via catalytic fast co-pyrolysis of waste cooking oil and tea residual. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 60:357-362. [PMID: 27625179 DOI: 10.1016/j.wasman.2016.09.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/10/2016] [Accepted: 09/08/2016] [Indexed: 06/06/2023]
Abstract
Catalytic fast co-pyrolysis (co-CFP) offers a concise and effective process to achieve an upgraded bio-oil production. In this paper, co-CFP experiments of waste cooking oil (WCO) and tea residual (TR) with HZSM-5 zeolites were carried out. The influences of pyrolysis reaction temperature and H/C ratio on pyrolytic products distribution and selectivities of aromatics were performed. Furthermore, the prevailing synergetic effect of target products during co-CFP process was investigated. Experimental results indicated that H/C ratio played a pivotal role in carbon yields of aromatics and olefins, and with H/C ratio increasing, the synergetic coefficient tended to increase, thus led to a dramatic growth of aromatics and olefins yields. Besides, the pyrolysis temperature made a significant contribution to carbon yields, and the yields of aromatics and olefins increased at first and then decreased at the researched temperature region. Note that 600°C was an optimum temperature as the maximum yields of aromatics and olefins could be achieved. Concerning the transportation fuel dependence and security on fossil fuels, co-CFP of WCO and TR provides a novel way to improve the quality and quantity of pyrolysis bio-oil, and thus contributes bioenergy accepted as a cost-competitive and promising alternative energy.
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Huang T, Yin L, Wu J, Gu J, Ding K, Zhang N, Du M, Qian L, Lu Z, He X. TNFAIP3 inhibits migration and invasion in nasopharyngeal carcinoma by suppressing epithelial mesenchymal transition. Neoplasma 2017; 64:389-394. [DOI: 10.4149/neo_2017_309] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Smeets M, Bittkau K, Lentz F, Richter A, Ding K, Carius R, Rau U, Paetzold UW. Post passivation light trapping back contacts for silicon heterojunction solar cells. NANOSCALE 2016; 8:18726-18733. [PMID: 27787533 DOI: 10.1039/c6nr04960e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Light trapping in crystalline silicon (c-Si) solar cells is an essential building block for high efficiency solar cells targeting low material consumption and low costs. In this study, we present the successful implementation of highly efficient light-trapping back contacts, subsequent to the passivation of Si heterojunction solar cells. The back contacts are realized by texturing an amorphous silicon layer with a refractive index close to the one of crystalline silicon at the back side of the silicon wafer. As a result, decoupling of optically active and electrically active layers is introduced. In the long run, the presented concept has the potential to improve light trapping in monolithic Si multijunction solar cells as well as solar cell configurations where texturing of the Si absorber surfaces usually results in a deterioration of the electrical properties. As part of this study, different light-trapping textures were applied to prototype silicon heterojunction solar cells. The best path length enhancement factors, at high passivation quality, were obtained with light-trapping textures based on randomly distributed craters. Comparing a planar reference solar cell with an absorber thickness of 280 μm and additional anti-reflection coating, the short-circuit current density (JSC) improves for a similar solar cell with light-trapping back contact. Due to the light trapping back contact, the JSC is enhanced around 1.8 mA cm-2 to 38.5 mA cm-2 due to light trapping in the wavelength range between 1000 nm and 1150 nm.
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Crim A, Gillen J, Liu C, Roane B, Ding K, Richardson D, Moore K. Prognostic Importance of Progression Free Survival Interval in Patients with IVB Endometrial Cancer Treated with Platinum-Based Therapy. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.08.281] [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]
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Raman S, Ding K, Chow E, Meyer R, Nabid A, Chabot P, Coulombe G, Ahmed S, Kuk J, Dar A, Mahmud A, Fairchild A, Wilson C, Wu J, Dennis K, de Angelis C, Wong R, Zhu L, Brundage M. Minimal Clinically Important Differences in the EORTC QLQ-BM22 and EORTC QLQ-C15-PAL Modules in Patients With Bone Metastases. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zhang L, Wang P, Qin Y, Cong Q, Shao C, Du Z, Ni X, Li P, Ding K. RN1, a novel galectin-3 inhibitor, inhibits pancreatic cancer cell growth in vitro and in vivo via blocking galectin-3 associated signaling pathways. Oncogene 2016; 36:1297-1308. [PMID: 27617577 DOI: 10.1038/onc.2016.306] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 07/20/2016] [Accepted: 07/22/2016] [Indexed: 12/15/2022]
Abstract
Galectin-3 (Gal-3) has been implicated in pancreatic ductal adenocarcinoma (PDAC), and its candidacy as a therapeutic target has been evaluated. Gal-3 is widely upregulated in tumors, and its expression is associated with the development and malignancy of PDAC. In the present study, we demonstrate that a polysaccharide, RN1, purified from the flower of Panax notoginseng binds to Gal-3 and suppresses its expression. In addition, RN1 markedly inhibits PDAC cells growth in vitro, in vivo and in patient-derived xenografts. Mechanistically, RN1 binds to epidermal growth factor receptor (EGFR) and Gal-3, thereby disrupting the interaction between Gal-3 and EGFR and downregulating extracellular-related kinase (ERK) phosphorylation and the transcription factor of Gal-3, Runx1 expression. Inhibiting the expression of Runx1 by RN1, suppresses Gal-3 expression and inactivates Gal-3-associated signaling pathways, including the EGFR/ERK/Runx1, BMP/smad/Id-3 and integrin/FAK/JNK signaling pathways. In addition, RN1 can also bind to bone morphogenetic protein receptors (BMPR1A and BMPR2) and block the interaction between Gal-3 and the BMPRs. Thus, our results suggest that a novel Gal-3 inhibitor RN1 may be a potential candidate for human PDAC treatment via multiple targets and multiple signaling pathways.
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Wang J, Zhong Z, Ding K, Xue Z. Catalytic fast pyrolysis of mushroom waste to upgraded bio-oil products via pre-coked modified HZSM-5 catalyst. BIORESOURCE TECHNOLOGY 2016; 212:6-10. [PMID: 27065226 DOI: 10.1016/j.biortech.2016.04.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/31/2016] [Accepted: 04/02/2016] [Indexed: 06/05/2023]
Abstract
In this paper, HZSM-5 catalyst was modified by pre-coked to cover the strong external acid sites by methanol to olefins reaction, and the modified catalysts were then applied to conduct the catalyst fast pyrolysis of mushroom waste for upgraded bio-fuel production. Experiment results showed that the strong external acid sites and specific surface area decreased with pre-coked percentage increasing from 0% to 5.4%. Carbon yields of hydrocarbons increased at first and then decreased with a maximum value of 53.47%. While the obtained oxygenates presented an opposite variation tendency, and the minimum values could be reached when pre-coked percentage was 2.7%. Among the achieved hydrocarbons, toluene and p-xylene were found to be the main products, and the selectivity of p-xylene increased at first and then decreased with a maximum value of 34.22% when the pre-coked percentage was 1.3%, and the selectivity of toluene showed the opposite tendency with a minimum value of 25.47%.
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Ding K, Ji T, Iordachita I, Velarde E, Hyatt J, Wong J. SU-F-T-232: Monthly Quality Assurance in External Beam Radiation Therapy Using a Single System. Med Phys 2016. [DOI: 10.1118/1.4956371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Greenwade M, Rowland M, Ruskin R, Ding K, Gillen J, Crim A, Walter A, Kleis B, Moore K, Gunderson C. Factors influencing clinical trial enrollment among ovarian cancer patients. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.332] [Citation(s) in RCA: 1] [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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78
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Lee M, Wong J, Ding K, Yi B. SU-F-T-287: A Preliminary Study On Patient Specific VMAT Verification Using a Phosphor-Screen Based Geometric QA System (Raven QA). Med Phys 2016. [DOI: 10.1118/1.4956427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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79
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Rowland M, Ruskin R, Dvorak J, Gunderson C, Walter A, Crim A, Gillen J, Greenwade M, Ding K, Moore K. Exploring further the poor outcomes of elderly patients with platinum-sensitive recurrent ovarian cancer using a contemporary application of the SOCRATES study. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.460] [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]
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Crim A, Rowland M, Ruskin R, Dvorak J, Greenwade M, Walter A, Gillen J, Ding K, Moore K, Gunderson C. Is intraperitoneal chemotherapy as effective within the elderly population for the treatment of epithelial ovarian cancer? Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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81
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Yuan X, Fu R, Liu H, Wang YH, Li LJ, Liu CY, Wang HL, Shao YY, Ding K, Chen J, Ruan EB, Wang HQ, Song J, Wang GJ, Shao ZH. [Quantities and function of NK cells in patients with positive BMMNC-Coombs test and cytopenia]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2016; 37:393-8. [PMID: 27210874 PMCID: PMC7348301 DOI: 10.3760/cma.j.issn.0253-2727.2016.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To test NK cell quantities and function in patients with positive BMMNC-Coombs test (CBCPC) and cytopenia and to explore how NK cell participate in the progress of this disease. METHODS The percentage of CD3(-)CD56(+) NK cell in peripheral blood lymphocytes, the expression of activating receptor (NKG2D, NKp46, NKp44), inhibitory receptor (CD158a, CD158b), perforin and granzyme-β were detected by flow cytometry. All samples were taken from 42 patients (22 newly diagnosed and 20 in remission) and 12 healthy volunteers. The correlation between the above parameters and patients' clinical profile were evaluated. RESULTS ①The percentage of CD3(-)CD56(+) NK cell in new diagnosed and remission CBCPC patients were significantly lower than that in healthy control [(10.04 ± 5.33)% vs (19.94 ± 7.38)%; (11.62 ± 6.80)% vs (19.94 ± 7.38)%, all P<0.01]. ② The expression of activating receptor NKG2D in new diagnosed CBCPC patients was significantly higher than that in remission group and healthy control [(74.03±18.24)% vs (45.97±29.45)%; (74.03±18.24)% vs (41.89± 15.34)% , P <0.01]. ③The expression of inhibitory receptor CD158a in new diagnosed CBCPC patients was significantly lower than that in remission group and healthy control (median: 3.72% vs 16.10%, P= 0.015; 3.72% vs 11.04%, P=0.025). ④The expression of perforin in new diagnosed and remitted CBCPC patients were significantly higher than that in healthy controls [(75.71±10.14) % vs (57.20±18.85)%, P= 0.018; (77.88±22.82)% vs (57.20±18.85)%, P=0.008]. ⑤The product of NK cell percentage and perforin expression in new diagnosed and remission CBCPC patient were significantly lower than that in healthy control [(7.68±4.54)% vs (12.13±5.19)%, P=0.011; (8.24±5.80)% vs (12.13±5.19)%, P=0.023]. The product of NK cell percentage and granzyme-β expression in the new diagnosed and remission CBCPC patient were significantly lower than that in healthy control [(7.83±5.26)% vs (14.79±8.37)%, P=0.008; (8.37 ± 6.83)% vs (14.79±8.37)%, P=0.012]. CONCLUSION Deceased quantities and impaired total NK function might play a role in pathogenesis of CBCPC.
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Chow E, Meyer R, Ding K, Nabid A, Chabot P, Coulombe G, Ahmed S, Kuk J, Dar A, Mahmud A, Fairchild A, Wilson C, Wu J, Dennis K, Brundage M, de Angelis C, Wong R. Dexamethasone Versus Placebo in the Prophylaxis of Radiation-induced Pain Flare Following Palliative Radiation Therapy for Bone Metastases: A Double-blind Randomized, Controlled, Superiority Trial. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2015.10.044] [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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Ng S, Su L, Zhang Y, Iordachita I, Wong J, Herman J, Sen H, Kazanzides P, Bell MAL, Ding K. Feasibility Study of Real Time Ultrasound Intrafractional Monitoring in Liver Stereotactic Body Radiation Therapy Underactive Breathing Control. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.2113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lu XY, Tang J, Zhang Z, Ding K. Bacterial β-ketoacyl-acyl carrier protein synthase III (FabH) as a target for novel antibacterial agents design. Curr Med Chem 2015; 22:651-67. [PMID: 25515508 DOI: 10.2174/0929867322666141212115236] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 10/24/2014] [Accepted: 12/10/2014] [Indexed: 11/22/2022]
Abstract
In bacterial type II fatty acid biosynthesis (FAS-II), β-ketoacyl-acyl carrier protein (ACP) synthase III (FabH) initiates the first condensation of acyl-CoA and malonyl-ACP to form acetoacetyl-ACP. Its key role for organism survival and specificity to bacteria make it as an essential target for the discovery of novel antibacterial agents. Over the last decade, several structures of FabH from diverse microorganisms have been solved, giving detailed information about the three-dimensional features of the catalytic pocket. This has facilitated the rational design of FabH inhibitors, which provides a framework for future development of antibiotics against multi-drug resistant strains. This review covers recent advances in the biochemical and structural research of FabH and updates the main families of related inhibitors.
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Ding K, Gulec A, Johnson AM, Schweitzer NM, Stucky GD, Marks LD, Stair PC. Identification of active sites in CO oxidation and water-gas shift over supported Pt catalysts. Science 2015; 350:189-92. [DOI: 10.1126/science.aac6368] [Citation(s) in RCA: 711] [Impact Index Per Article: 79.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 08/19/2015] [Indexed: 01/22/2023]
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Young S, Van Der Pol B, Taylor S, Fife K, Hook E, Patel R, Ding K, Hemyari P, Duncan J, Tang S, Liesenfeld O, Osiecki J, Lewinski M. P07.25 Comparison of cobas® hsv 1/2 test, quidel lyra™ direct hsv 1+2/vzv, bd probetectm hsv 1/2 qx assay and sanger sequencing using clinician-collected anogenital lesion swabs. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Young S, Van Der Pol B, Taylor S, Fife K, Hook E, Patel R, Ding K, Hemyari P, Duncan J, Tang S, Liesenfeld O, Osiecki J, Lewinski M. P07.23 Evaluation of the cobas ®hsv 1 and 2 test for the detection of hsv from clinician-collected anogenital lesion swab specimens compared with elvis ®hsv id and d³ typing test and sanger sequencing. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wang A, Duan Q, Ding K, Liu X, Wu J, Sun Z. Successful abdominal operation without replacement therapy in a patient with combined factor V (FV) and FVIII deficiency due to novel homozygous mutation in LMAN1. Haemophilia 2015; 21:e492-4. [PMID: 26193913 DOI: 10.1111/hae.12756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2015] [Indexed: 11/27/2022]
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Dong Q, Zhang S, Zhang L, Ding K, Xiong Y. Effects of four types of dilute acid washing on moso bamboo pyrolysis using Py-GC/MS. BIORESOURCE TECHNOLOGY 2015; 185:62-9. [PMID: 25755014 DOI: 10.1016/j.biortech.2015.02.076] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 02/18/2015] [Accepted: 02/19/2015] [Indexed: 05/09/2023]
Abstract
The influences of four types of dilute acid washing (H2SO4, HCl, HF, HNO3) on moso bamboo pyrolysis were investigated via pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). The effects of acid washings on the inorganics contents and the chemical structure were also analyzed. The results indicated that all the acid washings could effectively remove a large portion of inorganics and disrupt the chemical structure to a certain extent. HCl-washing behaved the best in removing inorganics and had the most marked disruption effect on bamboo structure. Acid washings promoted the bamboo pyrolysis and increased the contents of both phenols and sugars. HCl-washing had the most significant promotion effect on the levoglucosan formation with the absolute peak area increasing from 8.12×10(8) to 1.92×10(9). The absolute peak areas of 2,3-dihydrobenzofuran decreased more or less after acid washings. All the acid washings except H2SO4-washing could significantly increase the absolute peak area of methoxyeugenol.
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Ng SK, Armour E, Su L, Zhang Y, Iordachita I, Wong J, Sen HT, Kazanzides P, Bell ML, Ding K. SU-E-J-42: Evaluation of Fiducial Markers for Ultrasound and X-Ray Images Used for Motion Tracking in Pancreas SBRT. Med Phys 2015. [DOI: 10.1118/1.4924129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Tong J, Sun Z, Liu H, Geng L, Ding K, Wang X, Zheng C, Tang B, Zhu X, Yao W, Song K, Liu X. A myeloablative conditioning regimen with fludarabine demonstrates good results in UCBT for 30 pediatric patients with hematologic malignancies, especially acute lymphoblastic leukemia. Neoplasma 2015; 61:593-600. [PMID: 25030443 DOI: 10.4149/neo_2014_073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We retrospectively analyzed the safety and efficacy of a myeloablative conditioning regimen with fludarabine (FLU) in unrelated cord blood transplantation (UCBT) of 30 pediatric patients with hematologic malignancies. The conditioning regimen consisted of FLU, busulfan (BU) and cyclophosphamide (CY). All of the patients received Cyclosporine (CSA) and mycophenolate mofetil (MMF) as graft versus host disease (GVHD) prophylaxis. We achieved high engraftment rates (96.7%) and rapid hematopoietic reconstitution. Acute GVHD occurred in 12 cases of the 29 engraftment patients (41.4%), and 6 cases (20.7%) were of grade III-IV. Chronic GVHD only occurred in 1 of 28 evaluable patients (3.6%). Twenty-three patients (76.7%) became infected, and 3 cases (10.0%) died of severe infections. Cytomegalovirus (CMV) reactivation occurred in 70.0% of the patients, but no CMV diseases were observed, nor did any patients die of CMV infection. The cumulative incidence of relapse (6.7%) was significantly reduced, and none of the acute lymphoblastic leukemia (ALL) patients relapsed. The 3-year overall survival (OS) and event-free survival (EFS) rates were 73.3% and 70.0%, respectively. The 3-year OS and EFS of the ALL patients was 75.0%. This conditioning regimen demonstrates good results and security in UCBT, especially in acute lymphoblastic leukemia.
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Ding K. MO-DE-210-03. Med Phys 2015. [DOI: 10.1118/1.4925365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Su L, O'shea T, Ng SK, Zhang Y, Iordachita I, Wong J, Harris E, Bamber J, Sen HT, Kazanzides P, Bell ML, Ding K. TH-EF-BRB-09: Real-Time Ultrasound Monitoring with Speckle Tracking in Abdominal Stereotactic Body Radiation Therapy. Med Phys 2015. [DOI: 10.1118/1.4926307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Wong J, Velarde E, Iordachita I, Ding K, Li B, Ng S, Le Y. OC-0248: A unifying system for mechanical and (relative) dosimetry quality assurance in radiation therapy. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40246-4] [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]
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Zhang B, Zhong Z, Min M, Ding K, Xie Q, Ruan R. Catalytic fast co-pyrolysis of biomass and food waste to produce aromatics: Analytical Py-GC/MS study. BIORESOURCE TECHNOLOGY 2015; 189:30-35. [PMID: 25864028 DOI: 10.1016/j.biortech.2015.03.092] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 06/04/2023]
Abstract
In this study, catalytic fast co-pyrolysis (co-CFP) of corn stalk and food waste (FW) was carried out to produce aromatics using quantitative pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), and ZSM-5 zeolite in the hydrogen form was employed as the catalyst. Co-CFP temperature and a parameter called hydrogen to carbon effective ratio (H/C(eff) ratio) were examined for their effects on the relative content of aromatics. Experimental results showed that co-CFP temperature of 600 °C was optimal for the formation of aromatics and other organic pyrolysis products. Besides, H/C(eff) ratio had an important influence on product distribution. The yield of total organic pyrolysis products and relative content of aromatics increased non-linearly with increasing H/C(eff) ratio. There was an apparent synergistic effect between corn stalk and FW during co-CFP process, which promoted the production of aromatics significantly. Co-CFP of biomass and FW was an effective method to produce aromatics and other petrochemicals.
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Péron J, Roy P, Ding K, Parulekar WR, Roche L, Buyse M. Assessing the benefit-risk of new treatments using generalised pairwise comparisons: the case of erlotinib in pancreatic cancer. Br J Cancer 2015; 112:971-6. [PMID: 25688740 PMCID: PMC4366896 DOI: 10.1038/bjc.2015.55] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 12/31/2014] [Accepted: 01/12/2015] [Indexed: 12/18/2022] Open
Abstract
Background: Efficacy and safety are the two considerations when characterising the effects of a new therapy. We sought to apply an innovative method of assessing the benefit–risk balance using data from a completed randomised controlled trial that compared erlotinib vs placebo added to gemcitabine in patients with advanced pancreatic cancer (NCIC CTG PA.3). Methods: We applied generalised pairwise comparisons with several prioritised outcome measures (e.g., one or more benefit outcomes and one or more risk outcomes). Here, the first priority outcome was overall survival (OS) time. Differences in OS that exceeded 2 months were considered clinically meaningful. The second priority outcome was toxicity. The overall treatment effect was quantified using the proportion in favour of erlotinib, which can be interpreted as the net proportion of patients who have a better overall outcome with erlotinib as compared with placebo. Sensitivity analyses were performed. Results: In this trial 569 patients were randomly assigned in a 1 : 1 ratio to receive gemcitabine plus either erlotinib or a matched placebo. Overall, the method indicated no statistically significant overall treatment effect in favour of erlotinib; if anything, the point estimate of the net proportion leaned in favour of the placebo group (overall proportion in favour of erlotinib=−3.6%, 95% CI, −14.2– 7.1% P=0.51). The net proportion was never in favour of the erlotinib group throughout all sensitivity analyses. Conclusions: Generalised pairwise comparisons make it possible to assess the benefit–risk balance of new treatments using a single statistical test for any number of prioritised outcomes. The benefit–risk assessment was not in favour of adding erlotinib to gemcitabine for the treatment of patients with advanced pancreatic cancer.
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Pan J, Shen Y, Ding K. 70 Antitumor activity of S116836, a novel tyrosine kinase inhibitor, against imatinib-resistant FIP1L1-PDGFRa-expressing cells. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70196-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Fu R, Liu H, Wang Y, Liu H, He H, Chen J, Wang H, Yu H, Ding K, Huang L, Wang H, Xing L, Song J, Li L, Shao Z. Distinguishing immunorelated haemocytopenia from idiopathic cytopenia of undetermined significance (ICUS): a bone marrow abnormality mediated by autoantibodies. Clin Exp Immunol 2014; 177:412-8. [PMID: 24730511 DOI: 10.1111/cei.12347] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2014] [Indexed: 12/25/2022] Open
Abstract
In recent years we have observed that some patients with idiopathic cytopenia of undetermined significance (ICUS) responded well to corticosteroid and high-dose intravenous immunoglobulin treatment, indicating that some cytopenia in ICUS might be mediated by autoantibodies. In this study, we analysed 166 ICUS cases retrospectively, some of which were autoantibodies detected on haemopoietic cells in bone marrow (BM) by BM mononuclear cell (BMMNC)-Coombs test, flow cytometry (FCM), Western blot and immunofluorescence (IF). We found that 25·9% (43 of 166) of the cases had autoantibodies positive verified with BMMNC-Coombs test or FCM analysis, 72·1% (31 of 43) of whom had immunoglobulin (Ig)G autoantibody positive by Western blot. IgG could be detected in the erythroblastic islands on the BM smear of nine (32·1%, nine of 28) ICUS patients with autoantibodies by IF. Of these 43 patients, the median percentage of reticulocytes was 1·79%. More than half the patients had hyper-BM cellularity with a higher percentage of nucleated erythroid cells in the sternum. Total response rates to immunosuppressive therapy at 6, 12, 24 and > 36 months were 46·5% (20 of 43), 75% (30 of 40), 77·4% (24 of 31) and 66·7% (16 of 24), respectively. We termed this group of ICUS cases with autoantibodies as immunorelated haemocytopenia (or BMMNC-Coombs test-positive haemocytopenia).
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Zer A, Ding K, Lee S, Goss G, Seymour L, Ellis P, Bradbury P, O'Callaghan C, Tsao M, Shepherd F. Pooled Analysis of the Prognostic and Predictive Value of Kras Mutation Status and Mutation Subtype in Patients with Non-Small Cell Lung Cancer (Nsclc) Treated with Egfr Tkis (E-Tki). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu326.2] [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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Ellis P, Liu G, Millward M, Perrone F, Shepherd F, Seymour L, Sun S, Cho B, Morabito A, Stockler M, Leighl N, Lee C, Wierzbicki R, Favaretto A, Tsao M, Wilson C, Taylor I, Ding K, Goss G, Bradbury P. The Relationship Between Egfr and Kras Mutation Status and Overall Survival (Os) in the Ncic Ctg Br.26 Randomized Trial of Dacomitinib (D) Versus Placebo (P) in Patients with Previously Treated Non Small Cell Lung Cancer (Nsclc). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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