Sökning: "barn i sjukdom"

Visar resultat 16 - 20 av 131 avhandlingar innehållade orden barn i sjukdom.

  1. 16. On the Role of the Tumor Suppressor p53 in Leukemic Cell Differentiation

    Författare :Mats Ehinger; Tumörmikromiljö; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Haematology; p53; Tumor Suppressor Genes; Leukemia; Differentiation; extracellular fluids; Hematologi; extracellulära vätskor;

    Sammanfattning : Leukemic cells suffer from an impaired ability to differentiate due to inherited or acquired genetic lesions. These genetic changes can sometimes be bypassed with various compounds both in vitro, and, more rarely, in vivo, thus inducing terminal differentiation of the leukemic cells. LÄS MER

  2. 17. Tumors associated with Hereditary Nonpolyposis Colorectal Cancer: Defective Mismatch Repair and Familial Risk of Cancer

    Författare :Kajsa Ericson Lindquist; Bröstcancer-genetik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; oncology; cancerology; Cytologi; onkologi; cancer; Multiple Tumors; Hereditary Nonpolyposis Colorectal Cancer; Cytology; Cohort study; Population based; Familial Risk of Cancer; Immunohistochemistry; MSH2; MSH6; MLH1; Microsatellite Instability; Soft Tissue Sarcomas; Cancer of the Upper Urinary Tract; Cancer of the Small Intestine; Colorectal Cancer;

    Sammanfattning : Inactivation of the DNA mismatch repair (MMR) system is a tumorigenic mechanism involved in 15-20% of tumor types such as colorectal and endometrial cancer and is specifically associated with the Hereditary Nonpolyposis Colorectal Cancer (HNPCC) syndrome. These MMR defective tumors are characterized by microsatellite instability (MSI), a phenomenon that reflects alterations in length of repeated sequences, and 90% of MSI tumors show loss of immunohistochemical expression for the MMR protein affected. LÄS MER

  3. 18. Genetic factors in childhood cancer. Associations between tumors in childhood and adulthood, and prevalence of germline TP53 mutations

    Författare :Susanne Magnusson; Bröstcancer-genetik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Childhood cancer; hereditary factors; breast cancer; survival; hereditary breast and ovarian cancer; hereditary non-polyposis colorectal cancer; familial malignant melanoma; BRCA1; BRCA2; mismatch repair; CDKN2A; familial risk; multiple childhood tumors; Li-Fraumeni syndrome; TP53; adrenocortical carcinoma; choroid plexus tumors; rhabdomyosarcoma;

    Sammanfattning : The etiology of childhood cancer is largely unknown. Approximately 1-10% of all childhood tumors are associated with known cancer predisposition syndromes. However, the contribution may be underestimated due to the failure to detect patients with genetic susceptibility for cancer when relying on known family pattern and anomalies. LÄS MER

  4. 19. Impact of Lifestyle, Hormones, and Genes on Breast Cancer

    Författare :Maria Hietala; Bröstcancer-genetik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Breast cancer; BRCA1; BRCA2; androgen receptor; CAG; GGC; polymorphism; htSNP; oral contraceptives; testosterone; breast-feeding; prolactin; premenopausal women; CYP2D; complementary and alternative medicin; antidepressants;

    Sammanfattning : Approximately 7000 women are diagnosed and 1500 women die from breast cancer in Sweden every year. The aim of this thesis was to study the interplay of polymorphisms, hormone levels, lifestyle, and the use of concomitant medication in relation to risk and prognosis in two cohorts: one composed of young healthy women from high-risk breast cancer families and the other of breast cancer patients from the general population. LÄS MER

  5. 20. Clinical Aspects of Hereditary Breast Cancer

    Författare :Niklas Loman; Bröstcancer-genetik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cancer; Cytologi; onkologi; cancerology; oncology; Cytology; Age of onset; Survival analysis; Incidence; Male breast cancer; Steroid receptors; BRCA2; BRCA1; Breast cancer; hereditary;

    Sammanfattning : A positive family history of breast cancer (BC) is one of the strongest predictors of the disease. Two major BC susceptibility genes, BRCA1 and BRCA2 were identified about a decade ago. In this thesis, studies of different biological. clinical and epidemiological aspects of hereditary BC are presented. LÄS MER