oxalate/breast neoplasms

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Oxalate induces breast cancer.

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BACKGROUND Microcalcifications can be the early and only presenting sign of breast cancer. One shared characteristic of breast cancer is the appearance of mammographic mammary microcalcifications that can routinely be used to detect breast cancer in its initial stages, which is of key importance due

Re: Oxalate Induces Breast Cancer.

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Microcalcifications associated with breast cancer: an epiphenomenon or biologically significant feature of selected tumors?

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Radiographic mammary calcifications occur in 30-50% of breast cancers and constitute one of the most important diagnostic markers of both benign and malignant lesions of the breast. The presence of oxalate-type microcalcification appears to be a reliable criterion in favor of the benign nature of

[Analysis of serum metabonome of patients with breast cancer by gas chromatography-mass spectrometry].

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OBJECTIVE To analyze serum metabonome of patients with breast carcinoma by gas chromatography-mass spectrometry (GC-MS). METHODS Serum samples from 30 patients with breast carcinoma and 25 normal people were collected. Endogenous metabolites amino acids, fatty acids, saccharides and organic acids

MRP-1 and BCRP Promote the Externalization of Phosphatidylserine in Oxalate-treated Renal Epithelial Cells: Implications for Calcium Oxalate Urolithiasis.

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OBJECTIVE To investigate the possible involvement of multidrug resistance-associated protein 1 (MRP-1) and breast cancer resistance protein (BCRP) in the oxalate-induced redistribution of phosphatidylserine (PS) in renal epithelial cell membranes. METHODS A western blot analysis was used to examine

Resistance of paraquat and adriamycin in human breast tumor cells: role of free radical formation.

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Generation and enhanced detoxification of toxic free radicals by glutathione peroxidase and glutathione transferase in human breast tumor cells have been suggested to play an important role in toxicity and in resistance to adriamycin. We have examined the biochemical basis of paraquat-induced free

sigma(2) Receptors regulate changes in sphingolipid levels in breast tumor cells.

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sigma(2) Receptors induce apoptosis in various cell types. The sphingolipid, ceramide as well as the sphingoid bases are involved in cell proliferation. Sphingolipids of MCF-7/Adr- and T47D breast tumor cells were metabolically radiolabeled. The sigma(2) receptor agonists

Weddellite calcification in the breast: eighteen cases with implications for breast cancer screening.

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Breast tissue obtained from 18 of 246 women (7.3%) having localization biopsy for microcalcification contained crystals of Weddellite (calcium oxalate dihydrate). This was characterized by microscopic infra-red spectroscopy in three cases. Weddellite calcification was associated with benign lesions

Near-infrared fluorescence imaging of microcalcification in an animal model of breast cancer.

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OBJECTIVE At present, there is no animal model of breast cancer that forms reproducible microcalcification. The aim of this study was to develop a straightforward, reproducible model system that could be used to develop multimodality contrast agents for the identification of breast cancer

Synthesis and evaluation of amino acid-based radiotracer 99mTc-N4-AMT for breast cancer imaging.

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OBJECTIVE This study was to develop an efficient synthesis of (99m)Tc-O-[3-(1,4,8,11-tetraazabicyclohexadecane)-propyl]-α-methyl tyrosine ((99m)Tc-N4-AMT) and evaluate its potential in cancer imaging. METHODS N4-AMT was synthesized by reacting N4-oxalate and 3-bromopropyl AMT (N-BOC, ethyl ester).

Factors influencing the response and survival of patients with liver metastases from breast cancer receiving OK-432-combined adoptive immunotherapy.

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The response and survival of 26 patients with liver metastases from breast cancer, who received OK-432-combined adoptive immunotherapy from 1984 to 1990, were evaluated. OK-432-combined adoptive immunotherapy was comprised sequential treatment via the hepatic artery with a streptococcal preparation,

Microcalcifications Drive Breast Cancer Occurrence and Development by Macrophage-Mediated Epithelial to Mesenchymal Transition.

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This study aims to investigate: (a) the putative association between the presence of microcalcifications and the expression of both epithelial-to-mesenchymal transition and bone biomarkers, (b) the role of microcalcifications in the breast osteoblast-like cells (BOLCs) formation, and

Prospects for the diagnosis of breast cancer by noninvasive probing of calcifications using transmission Raman spectroscopy.

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Breast calcifications can be found in both benign and malignant lesions, and the composition of these calcifications can indicate the possible disease state. As current practices such as mammography and histopathology examine the morphology of the specimen, they cannot reliably distinguish between

Optical Screening of Female Breast Cancer from Whole Blood Using Raman Spectroscopy.

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This study is intended to develop a screening method for female breast cancer (BRC) from whole blood using Raman spectroscopy. A multivariate partial least squares (PLS) regression model is developed which is based upon Raman spectra of BRC-positive and healthy participants. It yields coefficients

Subsurface probing of calcifications with spatially offset Raman spectroscopy (SORS): future possibilities for the diagnosis of breast cancer.

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Breast calcifications are often the only mammographic features indicating the presence of a cancerous lesion. Calcium oxalate (type I) may be found in and around benign lesions, however calcium hydroxyapatite (type II) is usually found within proliferative lesions, which can include both benign and

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