Sökning: "free radicals"

Visar resultat 21 - 25 av 120 avhandlingar innehållade orden free radicals.

  1. 21. Activation of human eosinophils by exogenous danger signals

    Författare :Lena Svensson; Göteborgs universitet; []
    Nyckelord :Human eosinophils; danger signals; WKYMVm; bacteria; allergen; chemotaxis; CR3; free oxygen radicals; degranulation; formyl peptide receptor;

    Sammanfattning : Eosinophilic granulocytes are leukocytes that reside in the gastrointestinal and respiratory tracts. Their function in health is unknown. LÄS MER

  3. 22. Oxidative stress, antioxidative defence and outcome of gestation in experimental diabetic pregnancy

    Författare :Jonas Cederberg; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; Diabetes; pregnancy; rat; ROS; free oxygen radicals; TBARS; isoprostanes; protein carbonyls; embryo; vitamin C; vitamin E; Cellbiologi; Cell biology; Cellbiologi; medicinsk cellbiologi; Medical Cell Biology;

    Sammanfattning : Maternal type 1 diabetes is associated with an increased risk for foetal malformations. The mechanism by which diabetes is teratogenic is not fully known. Previous studies have demonstrated that radical oxygen species can contribute to the teratogenicity of glucose and diabetes. LÄS MER

  4. 23. The influence of oxygen derived free radicals on in vitro and in vivo model systems : interactions of superoxide anion radical, hydrogen peroxide and hydroxyl radical

    Författare :Rolando Del Maestro; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  5. 24. Human eosinophils and their activation by allergens via danger signal receptors

    Författare :Elin Redvall; Göteborgs universitet; []
    Nyckelord :human eosinophils; danger signals; allergen; formyl peptide receptors; CCR3; chemotaxis; degranulation; free oxygen radicals; receptor desensitization;

    Sammanfattning : Human eosinophilic granulocytes are polymorphonuclear cells with a powerful arsenal of cytotoxic substances in their granules, which are mainly found in the gastrointestinal mucosa, and the respiratory and genitourinary tracts. Their physiological role is incompletely understood, although it is likely they protect the mucosal surfaces, perhaps by recognizing danger signals present on microorganisms or released from damaged tissue. LÄS MER

  7. 25. Metal-Free O- and C-Arylation with Diaryliodonium Salts

    Författare :Erik Lindstedt; Berit Olofsson; Kilian Muñiz; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hypervalent Iodine; Alkyl Aryl Ethers; Nitro Compounds; Alcohols; Diaryliodonium Salts; organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis concerns the development of metal-free applications using diaryliodonium salts. The first project describes an arylation protocol of allylic and benzylic alcohols in aqueous media. The method proceeds under mild conditions and the ether products were obtained in moderate to good yields. LÄS MER