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Article

Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma

  • Authors:
    • Shinsuke Tasaki
    • Akio Horiguchi
    • Takako Asano
    • Kenji Kuroda
    • Akinori Sato
    • Junichi Asakuma
    • Keiichi Ito
    • Tomohiko Asano
    • Hirotaka Asakura
  • View Affiliations / Copyright

    Affiliations: Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan, Department of Urology, Saitama Medical University, Iruma, Saitama 350-0495, Japan
  • Pages: 69-73
    |
    Published online on: May 9, 2016
       https://doi.org/10.3892/mco.2016.890
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Abstract

The recent discovery and clinical development of targeted agents have expanded treatment options in metastatic renal cell carcinoma (RCC). However, metastatic RCC remains a lethal disease. Complete response is rare and treatment with targeted agents eventually fails in the majority of the patients. Therefore, there is a need for developing a prognostic tool and a novel therapeutic agent for RCC to improve the follow‑up strategy after surgical treatment. Clinical data, including patient characteristics, serum fatty acid profile, clinicopathological parameters and clinical outcome, were obtained from 112 patients with RCC prior to surgical treatment. Preoperative fatty acid levels were grouped according to patient characteristics, such as performance status, body mass index or pathological parameters, and were analyzed using the Mann‑Whitney U test. Cancer‑specific survival in the high and low docosahexaenoic acid (DHA) level groups were compared using the Kaplan‑Meier method. Cox proportional hazards models were applied to determine the independent prognostic factors associated with shortened cancer‑specific survival. The serum DHA level in patients with metastasis was significantly lower compared with that in patients without metastasis (P=0.047). Low serum DHA level, presence of metastasis and cachexia were independent predictors of shortened cancer‑specific survival in a multivariate Cox proportional hazard model (P=0.033, hazard ratio = 4.43). Patients with a serum DHA level below the median value exhibited significantly shorter cancer-specific survival compared with those with a higher serum DHA level (P=0.008). Thus, according to our results, the preoperative serum DHA level may be able to predict the surgical outcome of RCC. However, this finding requires validation by large-scale prospective studies.
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Copy and paste a formatted citation
Spandidos Publications style
Tasaki S, Horiguchi A, Asano T, Kuroda K, Sato A, Asakuma J, Ito K, Asano T and Asakura H: Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma. Mol Clin Oncol 5: 69-73, 2016.
APA
Tasaki, S., Horiguchi, A., Asano, T., Kuroda, K., Sato, A., Asakuma, J. ... Asakura, H. (2016). Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma. Molecular and Clinical Oncology, 5, 69-73. https://doi.org/10.3892/mco.2016.890
MLA
Tasaki, S., Horiguchi, A., Asano, T., Kuroda, K., Sato, A., Asakuma, J., Ito, K., Asano, T., Asakura, H."Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma". Molecular and Clinical Oncology 5.1 (2016): 69-73.
Chicago
Tasaki, S., Horiguchi, A., Asano, T., Kuroda, K., Sato, A., Asakuma, J., Ito, K., Asano, T., Asakura, H."Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma". Molecular and Clinical Oncology 5, no. 1 (2016): 69-73. https://doi.org/10.3892/mco.2016.890
Copy and paste a formatted citation
x
Spandidos Publications style
Tasaki S, Horiguchi A, Asano T, Kuroda K, Sato A, Asakuma J, Ito K, Asano T and Asakura H: Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma. Mol Clin Oncol 5: 69-73, 2016.
APA
Tasaki, S., Horiguchi, A., Asano, T., Kuroda, K., Sato, A., Asakuma, J. ... Asakura, H. (2016). Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma. Molecular and Clinical Oncology, 5, 69-73. https://doi.org/10.3892/mco.2016.890
MLA
Tasaki, S., Horiguchi, A., Asano, T., Kuroda, K., Sato, A., Asakuma, J., Ito, K., Asano, T., Asakura, H."Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma". Molecular and Clinical Oncology 5.1 (2016): 69-73.
Chicago
Tasaki, S., Horiguchi, A., Asano, T., Kuroda, K., Sato, A., Asakuma, J., Ito, K., Asano, T., Asakura, H."Preoperative serum docosahexaenoic acid level predicts prognosis of renal cell carcinoma". Molecular and Clinical Oncology 5, no. 1 (2016): 69-73. https://doi.org/10.3892/mco.2016.890
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