Sökning: "methylation"

Visar resultat 21 - 25 av 382 avhandlingar innehållade ordet methylation.

  1. 21. Epigenetic Regulation and Reprogramming of the H19 Imprinting Control Region

    Författare :Piero Mariano; Rolf Ohlsson; Karl Ekwall; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Imprinting; chromatin; H19; Igf2; CTCF; Insulator; methylation; Boris; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi;

    Sammanfattning : The development of a new individual from the fertilized oocyte can ultimately be seen as the consequence of the establishment and maintenance of specific patterns of gene expression. Although regulation of gene activity occurs at different levels, cellular specialization and differentiation are the results of developmental cues that essentially take place at the transcriptional level. LÄS MER

  3. 22. Human papillomavirus and cellular biomarkers in cervical cancer

    Författare :Malin Kaliff; Gabriella Lillsunde-Larsson; Mats G. Karlsson; Tina Dalianis; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cervical cancer; HPV; screening; triage; prognosis; genotype distribution; multiple HPV; HPV-negative; viral load; methylation;

    Sammanfattning : Cervical cancer (CC) is caused by a persistent infection of certain types of the human papillomavirus (HPV). Even though great progress has been made in strategies for prevention, and treatment of CC, there is still a need for improved methods in screening and management of women diagnosed with CC. LÄS MER

  4. 23. Analysis of Genetic Alterations in Patients Affected with Neurofibromatosis Type 2 and its Associated Tumors

    Författare :Caisa Marie Hansson; Jan P. Dumanski; Juha Kere; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; Neurofibromatosis type 2; schwannoma; schwannomatosis; meningioma; array-CGH; chromosome 22; DNA copy number variation; methylation; Molekylärbiologi; Molecular biology; Molekylärbiologi;

    Sammanfattning : Neurofibromatosis type 2 (NF2) is an autosomal dominant disorder with the clinical hallmark of bilateral vestibular schwannomas (VS). Patients affected by a severe NF2 phenotype also presents with peripheral schwannomas, meningiomas and ependymomas. The closely related disorder schwannomatosis also displays multiple schwannomas, but never VS. LÄS MER

  5. 24. Genetic and Epigenetic Variation in the Human Genome : Analysis of Phenotypically Normal Individuals and Patients Affected with Brain Tumors

    Författare :Cecilia De Bustos; Jan P. Dumanski; Joseph F. Costello; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular genetics; genetic variation; epigenetics; brain tumor; array-CGH; glioblastoma; ependymoma; microarray; methylation; Genetik; Genetics; Genetik;

    Sammanfattning : Genetic and epigenetic variation is a key determinant of human diversity and has an impact on disease predisposition. Single nucleotide polymorphisms (SNPs) and copy number polymorphisms (CNPs) are the main forms of genetic variation. The challenge is to distinguish normal variations from disease-associated changes. LÄS MER

  7. 25. The immortalization process of T cells : with focus on the regulation of telomere length and telomerase activity

    Författare :Sofie Degerman; Göran Roos; John Sedivy; Umeå universitet; []
    Nyckelord :immortalization; senescence; T cells; Nijmegen breakage syndrome; telomere; telomerase; hTERT; generic aberrations; methylation; MEDICINE; MEDICIN; Pathology; patologi;

    Sammanfattning : Cellular immortalization is a major hallmark of cancer and is a multi-step process that requires numerous cell-type specific changes, including inactivation of control mechanisms and stabilization of telomere length. The telomeres at the chromosome ends are essential for genomic stability, and limit the growth potential of most cells. LÄS MER