Archive for the 'breast cancer Tests/diagnosis' Category

Proteomics help early detection of breast cancer

Proteomics the meaning <BR> genes are the carriers of genetic information, protein is a vital function of the Executive body. Human cells contain some type of protein estimated one million to 10 million species, researchers measured only a small part of the protein sequence. Proteomics to specific cells, tissues or organs contained in the systematic study of protein based on the gene coding for the protein in all subjects, from the cells and research on the overall level of the protein component and its variation, in-depth understanding of the organisms various physiological and pathological processes. Cancer proteomics is right and normal tissue diseases (from precancerous lesions of the tumor) the difference between the expression of the protein identification and quantitative analysis. A cell disease by non-state changes to the process of tumor cells, protein expression profiles will be a series of significant changes, the use of proteomic analysis technology from cell to the overall level shows the changes, to find a specific tumor early diagnosis of biomarkers offers hope.
Proteomics technologies for protein separation and identification. Two-dimensional polyacrylamide gel electrophoresis and mass spectrometry and bioinformatics is the most commonly used of the three technologies. Protein chip technology is a high-throughput analysis method is efficient, quick advantage. Lattice can probe specific protein to capture samples of the target protein and qualitative or quantitative analysis. Antibodies are protein-chip chips, the main types of protein chip is the fastest-growing chip, it becomes increasingly mature, gradually moving towards the industrialization of the production stage. In an experiment can be parallel, high-throughput compared to the same time hundreds of cell types important function of the protein expression changes.

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Check gene can predict breast cancer

This is the latest research achievements in Beijing, but experts fear the "genetic discrimination", it was not to promote

    在名为“基因组时代的医学”的“北大论坛”上,北京大学常务副校长韩启德院士很有把握地告诉记者,以北大目前的研究水平,完全可以通过基因来预 <BR>测乳腺癌发生的可能性,但这一技术是否要society, and, as appropriate, its needs of the ethical issues.

Gene and disease, stem cell research and Modernization of Traditional Chinese Medicine, Beijing University is the focus of the three medical research, which is the incidence of breast cancer gene research areas. Doctors have confirmed that a 3% of the breast cancer gene by a single decision, with the single gene than other people more susceptible to breast cancer. This gene can check for blood.

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With early diagnosis of breast cancer gene

During the eight years, from Kunming, the People's Liberation Army General Hospital Pathology director, chief physician and supervisor of Yang Ju-lun as "completed by the oncogenes and tumor suppressor genes in breast cancer occurrence of the molecular pathology research," first proposed by the detection of benign breast lesions oncogenes and tumor suppressor gene abnormalities forecast early diagnosis of breast cancer and the new perspectives and diagnostic model.

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Breast hyperplasia and breast cancer screening often can be assisted

Breast hyperplasia and breast cancer often use what is complementary examinations palpation in breast cancer and breast hyperplasia of the main diagnostic methods, but palpation by many subjective factors, it often acquires the following supplementary diagnostic method.
(1) B - ultrasound : Ultrasound images and anatomical location of a direct response characteristics for breast screening, a clear indication of the internal structure of the breast, can understand tumor's size, location, quality, with non-invasive, simple, easy feature of breast hyperplasia and the first choice for the diagnosis of breast cancer, can serve as a dynamic observation and treatment after a review of commonly used methods. Color ultrasound can show blood flow partial lesions of the breast tumor is malignant or benign discern significance.
(2) Near-infrared scanning : Using infrared breast penetrating organizations showed various video shown gray breast lumps.
(3) Thermal Image Inspection LCD : LCD color temperature effects in humans on the surface can show a very modest temperature distribution. Because breast cancer vigorous metabolism, vascular lesions, the local high temperatures lesions. This abnormal heat from the breast skin Application LCD panel showing different colors of the graphics identification, identification of the nature of disease.
(4) Other : Mammography or dry photographic plates, the breast CT, MRI breast clinical examinations are commonly used auxiliary methods, but all of the above checks are not 100% confirmed, the need to rely on biopsy or puncture biopsy or surgical pathology to prove.


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