Search for dissertations about: "β-cell survival"

Showing result 1 - 5 of 19 swedish dissertations containing the words β-cell survival.

  2. 1. In vitro Studies of β-cell Death and Survival. Modulation by Adenoviral Vectors and Bcl-2 Overexpression

    Author : Andreea Roxana Barbu; Nils Welsh; Decio Eiziric; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; β-cell; cytokine; mitochondrial membrane potential; Bcl-2; Adenoviral vector; Adenovirus; IFN-α; Diabetes; Cellbiologi; Cell biology; Cellbiologi;

    Abstract : Type 1 diabetes is a multifactorial disease resulting from the selective destruction of insulin-producing β-cells within the pancreatic islets of Langerhans. The mechanisms of β-cell death are not fully understood but cytokines are important mediators of this process. READ MORE

  4. 2. The beneficial Effects of Neural Crest Stem Cells on Pancreatic      β–cells

    Author : Anongnad Ngamjariyawat; Elena Kozlova; Leif Jansson; Jens Nielsen; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neural Crest Stem Cells; Pancreatic Islets; β-cell proliferation; β-cell survival; Cadherin; Medical Science; Medicinsk vetenskap;

    Abstract : Patients with type-1 diabetes lose their β-cells after autoimmune attack. Islet transplantation is a co-option for curing this disease, but survival of transplanted islets is poor. Thus, methods to enhance β-cell viability and function as well as methods to expand β-cell mass are required. READ MORE

  5. 3. Mechanisms by which variants in the TCF7L2 gene increase the risk of developing Type 2 diabetes

    Author : Yuedan Zhou; diabetes och endokrinologi Genomik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TCF7L2; rs7903146; Type 2 diabetes; β cell function; β cell survival; insulin secretion; proinsulin synthesis; proinsulin-to-insulin conversion; insulin maturation; open chromain; exon skipping; p53; TP53INP1; ISL1; MAFA; NEUROD1; PDX1; NKX6.1; PCSK1; PCSK2; SLC30A8; GWAS.;

    Abstract : Type 2 diabetes mellitus (T2DM) is a heterogeneous disease with a multifactorial aetiology comprising of genetic and environmental factors. The common variant most highly associated with T2DM known to date is a SNP rs7903146 in the TCF7L2 gene. However, the role TCF7L2 plays in the development of T2DM was unclear. READ MORE

  6. 4. The role of T-type calcium channels in human pancreatic β cell maturity

    Author : Kaixuan Zhao; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : This PhD work has optimized a series of in vivo, ex vivo and in vitro approaches to recapitulate, intervene and appraise in vivo maturation of naïve β cells within human induced pluripotent stem cell-derived islets (hiPSC-islets). These approaches have also been applied to characterize hyperglycemia-induced dedifferentiation of mature β cells within native human islets grafted into the anterior chamber of the eye (ACE) of immunodeficient mice. READ MORE

  7. 5. The Tyrosine Kinase GTK : Signal Transduction and Biological Function

    Author : Cecilia Annerén; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; Protein tyrosine kinases; GTK; SHB; proliferation; survival; differentiation; β cells; pancreatectomy; cytokines; diabetes; PC12 cells; NGF; streptozotocin; focal adhesion kinase; RAP1; Cellbiologi; Cell biology; Cellbiologi; medicinsk cellbiologi; Medical Cell Biology;

    Abstract : Protein tyrosine kinases play an important role in the regulation of various cellular processes such asgrowth, differentiation and survival. GTK, a novel SRC-like cytoplasmic tyrosine kinase, was recently cloned from a mouse insulinoma cell line and the present work was conducted in order to find a biological function of GTK in insulin producing and neuronal cells. READ MORE