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peroxidase/càncer de mama
L'enllaç es desa al porta-retalls
Pàgina 1 des de 658 resultats
A comparative study of selenium concentration and glutathione peroxidase activity in normal and breast cancer patients.
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OBJECTIVE
The present study was undertaken to compare plasma Se values and glutathione peroxidase (GPX) activity in normal and breast cancer patients.
METHODS
In a case-control study, forty-five breast cancer patients and the same number of healthy women were randomly selected from their population.
Antithyroid peroxidase antibody positivity is associated with lower incidence of metastasis in breast cancer.
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Thyroid extracts were first used to treat patients with metastatic breast cancer over a century ago. Since then, a number of studies have investigated the association between thyroid disorders and breast cancer. The presence of antibodies to thyroid peroxidase (TPOab) was recently reported to be
Does thyroid peroxidase provide an antigenic link between thyroid autoimmunity and breast cancer?
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Women with breast cancer (BC) and antithyroid peroxidase (TPO) autoantibodies (TPOAb) have a better prognosis than women lacking TPOAb. Sera from women with TPOAb displayed immunoreactivity to BC tissue by immunofluorescence that was not apparent in women without TPOAb. We hypothesize a BC/thyroid
Impaired expression of glutathione peroxidase-4 gene in peripheral blood mononuclear cells: a biomarker of increased breast cancer risk.
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Breast cancer aetiology is unclear despite comprising approximately 28% of female cancers. Several risk factors are known. Not all women exhibiting established risk factors will develop breast cancer but many without recognised risk factors will, indicating involvement of unknown risk factors.
Breast Cancer Cell Apoptosis is Synergistically Induced by Curcumin, Trastuzumab, and Glutathione Peroxidase-1 but Robustly Inhibited by Glial Cell Line-Derived Neurotrophic Factor.
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We hypothesized that synergy between curcumin (CURC), trastuzumab (TZMB), and glutathione peroxidase-1 (GPX-1) accelerates breast cancer (BC) cell apoptosis which is inhibited by glial cell line-derived neurotrophic factor (GDNF). We measured survival of BC cell lines treated or cotreated with CURC
Levels of selenium in plasma and glutathione peroxidase in erythrocytes and the risk of breast cancer. A case-control study.
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Plasma selenium and glutathione peroxidase in erythrocytes were analyzed in a case-control study encompassing 441 cases with breast cancer and 191 controls with benign breast disease. No difference in mean serum selenium level between cases and controls on supplementary selenium intake was seen. If
Blood selenium concentrations and glutathione peroxidase activities in patients with breast cancer and with advanced gastrointestinal cancer.
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Recent prospective epidemiological studies have shown an association between a low prediagnostic serum selenium (Se) concentration and the risk of cancer. Se concentrations in whole blood and plasma, and the activity of red cell and plasma glutathione peroxidase (GSH-Px) were measured in patients
Prospectively measured thyroid hormones and thyroid peroxidase antibodies in relation to risk of different breast cancer subgroups: a Malmö Diet and Cancer Study.
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Thyroid hormone level has been positively associated with breast cancer risk and with breast cancer cell proliferation and growth. Although breast cancer is a heterogeneous disease, this is the first study assessing pre-diagnostic levels of free triiodothyronine (fT3), free thyroxine
Relation between ultrastructural presence of CEA using peroxidase-antiperoxidase (PAP) method and tissue and serum levels of CEA in patients with breast cancer.
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Ultrastructural studies were performed to detect the presence of carcinoembryonic antigen (CEA) in breast cancer by peroxidase-antiperoxidase (PAP) method. The evidenced presence of CEA was compared with the serum and tissue concentrations. A correlation between the presence of CEA at the
Prospectively measured thyroid hormones and thyroid peroxidase antibodies in relation to breast cancer risk.
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Thyroid hormones influence both normal breast cell differentiation and breast cancer cell proliferation and stimulate the angiogenesis of certain cancer forms. Several cross-sectional studies have measured thyroid hormones/autoantibodies in breast cancer ceases vs. controls, but it is difficult to
Serum levels of antibodies to thyroid peroxidase correlate with quantitative descriptors of thyroid ultrasound images in patients with breast cancer.
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The aim of the study was to compare the structural changes in ultrasound image of the thyroid tissue in 12 women with breast cancer (BC) and 8 women with colorectal cancer (CC). MATLAB software was used to analyse the digitised images. As quantitative descriptors of thyroid ultrasound images (QDTI)
Immunohistochemistry on frozen section of sentinel lymph nodes in breast cancer with improved morphology and blocking of endogenous peroxidase.
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Sentinel lymph node biopsy in the management of patients with breast cancer is the clinical practice. Peroperative examination means that more patients can be treated in a 1-step procedure. The addition of immunohistochemistry to frozen section slides improves the detection rate of especially
Racial differences in oestrogen receptor and peroxidase status of human breast cancer tissue.
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Cytoplasmic oestradiol receptors and peroxidase from 170 tumours from patients with breast cancer were assayed. The results were analysed in terms of racial groups and menopausal status. It was found that 68% of the receptor-positive tumours were peroxidase-positive, while 59% of the
Inflammatory peroxidases promote breast cancer progression in mice via regulation of the tumour microenvironment.
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Myeloperoxidase (MPO) and eosinophil peroxidase (EPO) are heme-containing enzymes, well known for their antimicrobial activity, are released in high quantities by infiltrating immune cells in breast cancer. However, the functional importance of their presence within the tumour microenvironment is
The role of peroxidase-catalyzed activation of aromatic amines in breast cancer.
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Aromatic amines are mammary carcinogens in rodents and exposure to aromatic amines may be associated with increased risk of breast cancer in women. Peroxidases present in milk can oxidize aromatic amines to reactive electrophiles which bind to DNA and induce mutations. Hydrogen peroxide, required
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