Search for dissertations about: "β cells"

Showing result 1 - 5 of 650 swedish dissertations containing the words β cells.

  2. 1. Enterovirus Infections of β-Cells : A Mechanism of Induction of Type 1 Diabetes?

    Author : Anna-Karin Berg; Gun Frisk; Torsten Tuvemo; Arne Andersson; Merja Roivainen; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; enterovirus; type 1 diabetes; β-cells; human pancreatic islets; picornavirus; chemokines; nitric oxide; Pediatrik; Paediatric medicine; Pediatrisk medicin;

    Abstract : The process of β-cell destruction that leads to type 1 diabetes (T1D) is incompletely understood and it is believed to be a result of both genetic and environmental factors. Enterovirus (EV) infections of the β-cells have been proposed to be involved, however, the effects of EV infections on human β-cells have been little investigated. READ MORE

  4. 2. Glucotoxicity in Insulin-Producing β-Cells

    Author : Hanna K Nyblom; Peter Bergsten; Michael Welsh; Miriam Cnop; Uppsala universitet; []
    Keywords : Cell biology; type 2 diabetes; SELDI-TOF MS; glucotoxicity; proteomics; insulin secretion; mitochondria; lipids; INS-1E cells; GC-MS; HR-MAS NMR; metabolomics; human islet; AMPK; AICAR; ER stress; apoptosis; Cellbiologi;

    Abstract : Background and aims: Type 2 diabetes mellitus is connected with elevated glucose levels, which cause impaired glucose-stimulated insulin secretion (GSIS) and degeneration of β-cells. Mechanisms for such glucotoxic effects were explored in the present study.Materials and methods: INS-1E cells were cultured for 5 days in 5. READ MORE

  5. 3. Peripheral immunity in patients with autoimmune endocrine diseases and the influence of physiological adaptions during pregnancy

    Author : Louise Magnusson; Per-Ola Carlsson; Rosaura Casas; Ola Winqvist; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Type 1 diabetes; Hashimoto´s thyroiditis; Graves´ disease; autoimmune Addison´s disease; antigen-presenting cells; B cells; non-classical monocytes; NK cells; memory CD8 T cells; CDCP1; SLAMF1; inflammation; lymphocyte activation; pregnancy; β-cell function; C-peptide; plasma proteome; prolactin; prokineticin-1; glucagon; oral glucose tolerance test; mass cytometry; proximity extension assay; Medicinsk vetenskap; Medical Science; Klinisk immunologi; Clinical Immunology; Endocrinology and Diabetology; Endokrinologi och Diabetologi; Obstetrik och gynekologi; Obstetrics and Gynaecology;

    Abstract : Type 1 diabetes (T1D), Hashimoto’s thyroiditis (HT), Graves’ disease (GD), and autoimmune Addison’s disease (AD) appear to share immunogenetic mechanisms. This idea is not novel, as “autoimmune tautology” is an established concept. READ MORE

  6. 4. Cellular pathways and molecular regulation of hematopoietic stem cells

    Author : Kristina Anderson; Stamcellscentrum (SCC); []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; β-catenin.; lineage commitment; hematopoietic stem cells; lineage priming; Wnt signaling pathway; biphenotypic cells; PAX5;

    Abstract : Hematopoietic stem cells (HSCs) are defined by their unique properties to self-renew and differentiate into all hematopoietic cell lineages. Residing in the bone marrow (BM), adult HSCs are organized in a hierarchy of cells that differ in their self-renewal and proliferative capacity. READ MORE

  7. 5. Selective Retention of β-Carbolines and 7,12-Dimethylbenz[a]anthracene in the Brain : Role of Neuromelanin and Cytochrome P450 for Toxicity

    Author : Anna Östergren; Eva Brittebo; Nils Gunnar Lindquist; Anne-Lie Svensson; Hans Tjälve; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Toxicology; β-carboline; neuromelanin; norharman; harman; parkinsonism; Parkinson s disease; motoric impairment; behaviour; glia cells; substantia nigra; dopamine melanin; PC12 cells; ER stress; grp78; hsp90; cytochrome P450; CYP1A1; CYP1B1; blood-brain interfaces; 7; 12-dimethylbenz[a]anthracene; polycyclic aromatic hydrocarbon; endothelial cell; smooth muscle cell; bioactivation; Toxikologi; Toxicology; Toxikologi; Toxicology; toxikologi;

    Abstract : The ß-carbolines norharman and harman structurally resemble the synthetic compound 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) that is known for its ability to damage neuromelanin-containing dopaminergic neurons of the substantia nigra and thereby induce parkinsonism. MPTP is, however, not normally present in the environment whereas the ß-carbolines are present in cooked food and tobacco smoke. READ MORE