Pick Topic
Review Topic
List Experts
Examine Expert
Save Expert
  Site Guide ··   
Pancreatic Neoplasms: HELP
Articles by Kellie L. Bodeker
Based on 3 articles published since 2009
(Why 3 articles?)
||||

Between 2009 and 2019, K. Bodeker wrote the following 3 articles about Pancreatic Neoplasms.
 
+ Citations + Abstracts
1 Clinical Trial Consuming a Ketogenic Diet while Receiving Radiation and Chemotherapy for Locally Advanced Lung Cancer and Pancreatic Cancer: The University of Iowa Experience of Two Phase 1 Clinical Trials. 2017

Zahra, Amir / Fath, Melissa A / Opat, Emyleigh / Mapuskar, Kranti A / Bhatia, Sudershan K / Ma, Daniel C / Rodman, Samuel N / Snyders, Travis P / Chenard, Catherine A / Eichenberger-Gilmore, Julie M / Bodeker, Kellie L / Ahmann, Logan / Smith, Brian J / Vollstedt, Sandy A / Brown, Heather A / Hejleh, Taher Abu / Clamon, Gerald H / Berg, Daniel J / Szweda, Luke I / Spitz, Douglas R / Buatti, John M / Allen, Bryan G. ·a   Department of Radiation Oncology, University of Iowa, Iowa City, Iowa 52242. · b   Department of Internal Medicine, University of Iowa, Iowa City, Iowa 52242. · c   Iowa City VA Healthcare System, University of Iowa, Iowa City, Iowa 52242. · d   Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52242. · e   Division of Hematology and Oncology in the Department of Internal Medicine, University of Iowa, Iowa City, Iowa 52242. · f   Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73104. ·Radiat Res · Pubmed #28437190.

ABSTRACT: Ketogenic diets are low in carbohydrates and high in fat, which forces cells to rely more heavily upon mitochondrial oxidation of fatty acids for energy. Relative to normal cells, cancer cells are believed to exist under a condition of chronic mitochondrial oxidative stress that is compensated for by increases in glucose metabolism to generate reducing equivalents. In this study we tested the hypothesis that a ketogenic diet concurrent with radiation and chemotherapy would be clinically tolerable in locally advanced non-small cell lung cancer (NSCLC) and pancreatic cancer and could potentially exploit cancer cell oxidative metabolism to improve therapeutic outcomes. Mice bearing MIA PaCa-2 pancreatic cancer xenografts were fed either a ketogenic diet or standard rodent chow, treated with conventionally fractionated radiation (2 Gy/fraction), and tumor growth rates were assessed daily. Tumors were assessed for immunoreactive 4-hydroxy-2-nonenal-(4HNE)-modfied proteins as a marker of oxidative stress. Based on this and another previously published preclinical study, phase 1 clinical trials in locally advanced NSCLC and pancreatic cancer were initiated, combining standard radiation and chemotherapy with a ketogenic diet for six weeks (NSCLC) or five weeks (pancreatic cancer). The xenograft experiments demonstrated prolonged survival and increased 4HNE-modfied proteins in animals consuming a ketogenic diet combined with radiation compared to radiation alone. In the phase 1 clinical trial, over a period of three years, seven NSCLC patients enrolled in the study. Of these, four were unable to comply with the diet and withdrew, two completed the study and one was withdrawn due to a dose-limiting toxicity. Over the same time period, two pancreatic cancer patients enrolled in the trial. Of these, one completed the study and the other was withdrawn due to a dose-limiting toxicity. The preclinical experiments demonstrate that a ketogenic diet increases radiation sensitivity in a pancreatic cancer xenograft model. However, patients with locally advanced NSCLC and pancreatic cancer receiving concurrent radiotherapy and chemotherapy had suboptimal compliance to the oral ketogenic diet and thus, poor tolerance.

2 Clinical Trial Pharmacological ascorbate with gemcitabine for the control of metastatic and node-positive pancreatic cancer (PACMAN): results from a phase I clinical trial. 2013

Welsh, J L / Wagner, B A / van't Erve, T J / Zehr, P S / Berg, D J / Halfdanarson, T R / Yee, N S / Bodeker, K L / Du, J / Roberts, L J / Drisko, J / Levine, M / Buettner, G R / Cullen, J J. ·Department of Surgery, 1528 JCP-UIHC, The University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA. ·Cancer Chemother Pharmacol · Pubmed #23381814.

ABSTRACT: BACKGROUND: Treatment for pancreatic cancer with pharmacological ascorbate (ascorbic acid, vitamin C) decreases tumor progression in preclinical models. A phase I clinical trial was performed to establish safety and tolerability of pharmacological ascorbate combined with gemcitabine in patients with biopsy-proven stage IV pancreatic adenocarcinoma. DESIGN: Nine subjects received twice-weekly intravenous ascorbate (15-125 g) employing Simon's accelerated titration design to achieve a targeted post-infusion plasma level of ≥350 mg/dL (≥20 mM). Subjects received concurrent gemcitabine. Disease burden, weight, performance status, hematologic and metabolic laboratories, time to progression and overall survival were monitored. RESULTS: Mean plasma ascorbate trough levels were significantly higher than baseline (1.46 ± 0.02 vs. 0.78 ± 0.09 mg/dL, i.e., 83 vs. 44 μM, p < 0.001). Adverse events attributable to the drug combination were rare and included diarrhea (n = 4) and dry mouth (n = 6). Dose-limiting criteria were not met for this study. Mean survival of subjects completing at least two cycles (8 weeks) of therapy was 13 ± 2 months. CONCLUSIONS: Data suggest pharmacologic ascorbate administered concurrently with gemcitabine is well tolerated. Initial data from this small sampling suggest some efficacy. Further studies powered to determine efficacy should be conducted.

3 Article Comparison of response evaluation criteria in solid tumors with volumetric measurements for estimation of tumor burden in pancreatic adenocarcinoma and hepatocellular carcinoma. 2012

Welsh, Jessemae L / Bodeker, Kellie / Fallon, Elizabeth / Bhatia, Sundershan K / Buatti, John M / Cullen, Joseph J. ·Department of Surgery, University of Iowa College of Medicine, Iowa City, IA 52242, USA. ·Am J Surg · Pubmed #22902100.

ABSTRACT: BACKGROUND: Response evaluation criteria in solid tumors (RECIST) is the accepted method for determining tumor progression. However, RECIST may not estimate disease burden accurately because the axial plane often does not produce the actual longest diameter. Volumetric measurements may be an alternative to better determine tumor size. Our aim was to compare volumetric measurements with RECIST in pancreatic ductal adenocarcinomas (PDA) and hepatocellular carcinomas (HCC). METHODS: RECIST and volumetric measurements were determined in 9 patients with metastatic PDA and 17 patients with HCC who subsequently underwent liver transplantation. Gross pathologic measurements after hepatectomy also were analyzed for volumes. RESULTS: Three-dimensional diameter in volumetric analysis was 38% and 36% higher than RECIST diameter in PDA and HCC, respectively (P < .01). However, RECIST yielded 78% and 23% larger estimated tumor volumes than volumetric analysis in PDA and HCC, respectively (P < .01). Gross pathologic volume in HCC showed a linear correlation with both volumetric analysis (r = .95; P < .01) and RECIST (r = .96; P < .01) but RECIST significantly overestimated gross pathologic volume by an average of 28% (P < .01) whereas volumetric analysis was similar to gross pathologic volume (P = .56). In categorizing treatment response in PDA, RECIST and volumetric analysis were in moderate agreement (κ = .49). CONCLUSIONS: RECIST significantly may overestimate tumor burden compared with volumetric measurements in both PDA and HCC. Volumetric analysis may be the preferred method to detect tumor progression.