Publications by authors named "Querejeta A"

O-methylguanine-DNA methyltransferase (MGMT) promoter methylation status has been considered a prognostic factor in newly diagnosed glioblastoma (GBM). In this study, we evaluated the prognostic and predictive value of MGMT promoter methylation in patients with glioblastoma in Donostia Hospital. Surprisingly, methylation of MGMT promoter did not predict response to temozolomide in patients with glioblastoma in Donostia Hospital.

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Background: Few studies have examined gender differences in the clinical management of rectal cancer. We examine differences in stage at diagnosis and preoperative radiotherapy in rectal cancer patients.

Methods: A prospective cohort study was conducted in 22 hospitals in Spain including 770 patients undergoing surgery for rectal cancer.

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Long non-coding RNAs (LncRNAs) have emerged as a relevant class of genome regulators involved in a broad range of biological processes and with important roles in tumor initiation and malignant progression. We have previously identified a p53-regulated tumor suppressor signature of LncRNAs (PR-LncRNAs) in colorectal cancer. Our aim was to identify the expression and function of this signature in gliomas.

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Introduction: Glioblastoma is the most common primary brain tumour. Despite advances in treatment, its prognosis remains dismal, with a mean survival time of about 14 months. Many articles have addressed direct costs, those associated with the diagnosis and treatment of the disease.

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Short-course preoperative radiotherapy (RT) is widely used in northern Europe for locally advanced resectable rectal cancer, but its role in the era of advanced imaging techniques is uncertain. Here, we reviewed articles and abstracts on SCRT published from 1974 through 2013 with the goal of identifying patients who might be best suited for short-course RT. We included relevant articles comparing surgery with or without preoperative radiation published before and after the advent of total mesorectal excision.

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The Neuro-Oncology Study Group (NOSG) at SENEC has commissioned the elaboration of the present document to the Neuro-Oncology Committee at Donostia University Hospital. It is intended to serve as a NOSG Consensus Guide and a proposed recommendation for the management of this pathological condition at all Spanish Hospitals, both public and private. Neuro-Oncology Committees must be established and active at all centres with a Neurosurgery Service, taking into account the specific diagnostic and therapeutic capacity available.

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The utilisation of chiral penicillamine stabilisers allowed the preparation of new water soluble white emitting CdS nano-tetrapods, which demonstrated circular dichroism in the band-edge region of the spectrum.

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Introduction: The increase in life expectancy and the significant growth in the population of the elderly have generated an interest in secondary prevention of different diseases, especially from the age of 50. In Argentina, those over 65 represent 10% of the total population, what makes important to research into their mental health. A trans-sectional descriptive study has been carried out in four neuropsychology services in the city of Cordoba, within the framework of a campaign assessing memory for people over 50.

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313 patients with cervical metastases from a squamous carcinoma of the head and neck treated with radiotherapy, were studied by means of a multivariant analysis in order to determine the prognostic factors for cure. These were: lymph node response to irradiation (P = 0.0000), size of node (P = 0.

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A total of 90 patients with undifferentiated carcinomas tumors the head and neck with clinical neck nodes who received intended radical irradiation, were studied by means of a multivariant analysis of 9 variables which defined cervical lymph node disease in oder to determine the prognostic factors for the control of the above mentioned adenopathy. The factors were as follows: lymph node response post-irradiation (p = 0.0000), condition of the primary (controlled-non controlled) (p = 0.

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