National Repository of Grey Literature 15 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Expression and prognostic value of microRNAs in patients with early breast cancer.
Sochor, Marek ; Tesařová, Petra (advisor) ; Slabý, Ondřej (referee) ; Hajdúch, Marián (referee)
Breast cancer is the most frequent cancer in women and is prognostically very heterogeneous. Early breast cancer has an excellent overall prognosis with long-term survival above 90%. In this group we can also find patients with highly unfavourable progress with a risk of future disease relapse. Due to effective anticancer treatment is a main task of precise clinical decision to determine risk of an individual patient in the term of cancer relapse. We can use clinical (tumor diameter, lymph nodes) and pathological markers (grade, ER, PgR, HER2, and Ki-67), all of them have low individual sensitivity and specificity. Molecular tests based on multigene DNA or RNA assays have higher sensitivity and specificity but their interrelated concordance is low. One of the main scientific task is to find almost specific and sensitive prognostic biomarkers. microRNAs are small, highly stable, non-coding RNAs, which regulate tens of mRNAs and proteins inside cells. In cancerogenesis, they could act as oncogenes or tumor supressors as well and affect main steps of initiation and progression of cancer. One of the scientific directions is to determine their prognostic significance. Many experimental and clinical studies defining prognostic significance of miRs in early breast cancer was published but their data were...
Breast cancer in young women: correlation of molecular-genetic, clinical and morphological features
Metelková, Alena ; Fínek, Jindřich (advisor) ; Tesařová, Petra (referee) ; Ryška, Aleš (referee)
In the first part of the dissertation the author summarizes the current knowledge of breast cancer, which is the most frequent malignancy in female population. The author deals with etiology, classification, diagnostics, biological behaviour, therapeutical forms ranging from surgical treatment and radiotherapy, to systemic therapy. In the following part of the manuscript the author describes specifics of breast cancer diagnosed in premenopausal women. She describes how the risk factors, treatment and prognosis differ from the disease in postmenopausal women. Next section of the dissertation includes a retrospective case series evaluating group of patients with breast cancer ≤ 35 years. There were 16 294 cases of breast cancer proven histologically in Biopticka lab Pilsen, ltd. and Sikl's Department of Pathology, Faculty Hospital Pilsen, during 2006-2015. The cohort of patients in our retrospective study includes 356 young women (2,2%) with breast cancer, under 35 years of age by the time of setting the diagnosis. We sorted out a group of 93 patients from the basic cohort, that were or have been treated in the Department of Oncology and Radiotherapy, Faculty Hospital in Pilsen. A control group consists of 100 postmenopausal women ≥ 65 years of age, chosen randomly from all patients treated in the...
Detection of minimal residual disease in bone marrow an peripheral blood in patients with breast cancer.
Čabiňaková, Michaela ; Tesařová, Petra (advisor) ; Konopásek, Bohuslav (referee) ; Macek, Milan (referee)
Introduction: Simultaneous detection of disseminated tumor cells (DTCs) and circulating tumor cells (CTCs) was shown to be associated with an especially poor prognosis and increased incidence of disease-related deaths in non-metastatic breast cancer patients. We analyzed the occurance of DTCs in bone marrow and CTCs in peripheral blood in patients with primary breast cancer, we evaluated the correlation of their presence with other prognostic markers and we investigated the changes in DTCs/CTCs number at different time points during treatment. Materials and methods: Blood of 50 patients with primary breast cancer were used for immunomagnetic separation and detection of circulating tumor cells using the commercial available system the AdnaTest Breast Cancer™ (AdnaGen GmbH, Langenhagen, Germany). Bone marrow aspirates from 50 patients were analyzed for DTCs by immunocytochemistry using the pancytokeratin antibody conjugated with FITC (Monoclonal Anti-Cytokeratin antibody F3418, Sigma Aldrich, USA). Results: DTCs were identified in 30% (15/50) and CTCs in 22% (11/50) of patients. We found that DTC positivity could point to a significantly high risk of larger primary tumor size (p- value 0.011) and significantly higher risk of lymph node involvement (p- value 0.002). For CTC positivity, no such...
Laboratory parameters in the detection of the effect of anticancer therapy on immune system
Králíčková, Pavlína ; Melichar, Bohuslav (advisor) ; Tesařová, Petra (referee) ; Litzman, Jiří (referee)
Laboratory parameters in the detection of the effect of anticancer therapy on immune system Summary We can consider the immune response to cancer cells as the last barrier in carcinogenesis. Chemotherapeutics interfere directly or indirectly with tumour microenvironment. Our work was divided into two parts. The aim of our study was to describe the distribution of lymphocyte subsets in peripheral blood and urinary neopterin in breast cancer patients in relatation to the treatment in the part one, and elucidate the correlation between CD14+CD16+ monocytes, urinary neopterin and risk factors of atherosclerosis in the part two. We show that the changes of lymphocyte subpopulations are present even at the time of cancer diagnosis. The treatment could positively affect the anticancer response. The changes of these lymphocytes subsets during therapy in patients with metastatic stage of disease are less expressed. The restoration of the immune system is a long-term process. The systemic inflammatory response connected with tumour presence could contribute to the accented atherosclerosis, possible long-term complication in cancer patients.
Risk factors for atherosclerosis in patients with Breast cancer
Kalábová, Hana ; Melichar, Bohuslav (advisor) ; Kubecová, Martina (referee) ; Tesařová, Petra (referee)
2. Summary Atherosclerosis and cancer are two of the most frequent causes of death in the developed world (Ng et al. 2006). There are a lot of similar risk factors both for atherosclerosis and for cancer (for example age, smoking, high intake of lipids, minimal physical activity leading to obesity and others). Atherosclerosis and cancer activate the immune system (Wachter et al. 1989) and the investigation of ischemic syndrome (often caused by atherosclerosis) contributed to finding some common molecular trails in the development of both of these diseases in last years (Pehrsson et al. 2005). Thanks to the progress in oncology treatment, patients with cancer survive longer, however, it is also very probable that a complex cancer therapy can lead to complications of atherosclerosis. The goal of this study was to clarify the influence of breast cancer itself and oncology treatment on atherosclerosis and its complications.
Prognostic and Predictive Factors in Breast Cancer
Šefrhansová, Lucie ; Fínek, Jindřich (advisor) ; Pešek, Miloš (referee) ; Tesařová, Petra (referee) ; Nekulová, Miroslava (referee)
of dissertation thesis Prognostic and Predictive Factors in Breast Cancer The mRNA Expression of Selected Genes in Normal and Tumor Breast Tissue Samples and Theirs Clinical Value in Breast Cancer L.Šefrhansová Background: The aim of this work was to describe and to evaluate possibilities of prognosis and prediction in breast cancer. Within the framework of this study-work we carry out a prospective clinical study. The aim of this prospective study was to detect mRNA MMP-7, p53 and TIMP-1 expression in normal and tumor breast tissue samples and to determine the clinical and prognostic significance of our results. Prognosis and prediction: The tumor size, lymph node status, presence of distant metastasis, differentiation of the tumor, perivascular invasion, mitotic activity, expression of ER, PR and HER2 receptors are the basic prognostic factors in breast cancer. Age under/above 35 years was included among independent prognostic breast cancer factors in 2005. It is approved to use uPA/PAI to assess prognosis in node negative breast cancer patients. The hormone receptor status and HER-2 receptor status are the only two predictive markers associated with the target therapy. OncotypeDX analysis could be use to predict the disease recurrence interval of patients with estrogen positive and node negative...
Stress-strain analysis of arterial aneurysms
Tesařová, Petra ; Skácel, Pavel (referee) ; Burša, Jiří (advisor)
The diploma thesis is focused on the creation of the aneurysm finite element model and the making of the aneurysm wall stess-strain analysis using ANSYS software. The model of abdominal aortic aneurysm geometry starts from the CT scan of the particular patient. In the thesis there are compared two chosen constitutive models, each of them appears from different mechanical tests done on human arterial fibre samples. Furthermore, a limiting condition for aneurysm wall structure damage is expressed. On the basis of the results of stress calculation in the aneurysm wall and the limiting condition, the safety coefficient and rupture factors risk are worked out.
Risk factors endangering people at old age
This work is concentrated on risk factors endangering the man in his old age time and a special risk of falls. The aim of my work was to find out what kind of risk the seniors feel as heavy and how the dynamics disorders affect the life of seniors. It was determined three hypotheses. H1: Seniors feel the physical factors as heavy, H2: The dynamics disorders cause subsequently their isolation from the society, H3: The seniors are not sufficiently informed about the precausion of falls and possible following complications. The aims of work were completed, the first and second hypotheses were confirmed, the third hypothesis could not be either overcome nor confirmed. The results of work will be used for professional seminars and meetings with seniors.

National Repository of Grey Literature : 15 records found   1 - 10next  jump to record:
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10 TESAŘOVÁ, Petra
1 Tesařová, Pavla
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