Sökning: "Lipoxygenases"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet Lipoxygenases.

1. 1. In vitro Studies of Genodermatoses Affecting Cytoskeletal Integrity and Lipid Processing in Human Epidermis : Pathogenic Mechanisms and Effects of Retinoid Therapy

   Författare :Hao Li; Hans Törmä; Anders Vahlquist; Mikael Ivarsson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Congenital Ichthyosiform Erythroderma; Epidermolytic Hyperkeratosis; Ceramides; Keratins; Retinoids; Molecular Probe Techniques; Transglutaminases; Lipoxygenases; Fatty Acid Transporter Proteins; Keratinocytes; Epidermis; Medicinsk vetenskap; Medical Science;

   Sammanfattning : Autosomal dominant epidermolytic ichthyosis (EI) is a rare disease characterized by intra-epidermal blistering due to mutations in either of two keratin genes, KRT1 and KRT10, expressed by suprabasal keratinocytes. Autosomal recessive congenital ichthyosis (ARCI) is a non-blistering, hyperkeratotic disease caused by mutations in one of the following genes: ABCA12, ALOX12B, ALOXE3, TGM1, CYP4F22, NIPAL4 and SLC27A4, which are all essential for skin barrier homeostasis. LÄS MER

3. 2. The structural basis for the catalytic specificity of manganese lipoxygenases : 3D structure analysis of the lipoxygenase of Magnaporthe oryzae

   Författare :Anneli Wennman; Ernst H. Oliw; Marcia Newcomer; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; oxylipin; lipoxygenase; crystal structure; crystallography; HPLC; mass spectrometry; yeast; site-directed mutagenesis; fungi; Biochemical Pharmacology; Biokemisk farmakologi;

   Sammanfattning : Lipoxygenases (LOX) catalyze regio- and stereospecific oxygenation of polyunsaturated fatty acids to hydroperoxides. These hydroperoxides are further metabolized to leukotrienes and lipoxins in mammals, and are involved in asthma and inflammation. LOX of animals and plants contain iron as catalytic metal (FeLOX). LÄS MER

4. 3. Studies on the regulation and function of lipoxygenases in Hodgkin lymphoma

   Författare :Hongya Han; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Hodgkin lymphoma (HL) is a unique entity among the lymphomas, with a minority of malignant Hodgkin and Reed-Sternberg (H-RS) cells surrounded by a broad range of infiltrating cells. The infiltration of certain inflammatory cells has been reported to predict prognosis of the disease. LÄS MER

5. 4. Expression of Manganese Lipoxygenase and Site-Directed Mutagenesis of Catalytically Important Amino Acids : Studies on Fatty Acid Dioxygenases

   Författare :Mirela Cristea; Ernst H. Oliw; Chao Su; Olof Rådmark; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical pharmacology; Dioxygenase; Gaeumannomyces graminis; lipoxygenase; Magnaporthe grisea; oxylipin; Pichia pastoris; hydroperoxide isomerase; polyunsaturated fatty acids; Farmaceutisk farmakologi; Pharmaceutical pharmacology; Farmaceutisk farmakologi;

   Sammanfattning : Polyunsaturated fatty acids can be bioactivated by two families of dioxygenases, which either contain non-heme iron (lipoxygenases) or heme (cyclooxygenases, linoleate diol synthases and α-dioxygenases).Lipoxygenases and their products play important roles in the pathophysiology of plants and fungi. LÄS MER

7. 5. Characterization of two novel fatty acid dioxygenases : Linoleate diol synthase and manganese lipoxygenase

   Författare :Chao Su; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical biosciences; Dioxygenase; hemeprotein; lipoxygenase; metalloenzyme; oxylipin; fatty acid; manganese-protein; Gaeumannomyces graminis; Farmaceutisk biovetenskap; Biopharmacy; Biofarmaci; galenisk farmaci; Pharmaceutics;

   Sammanfattning : Two classes of fatty acid dioxygenases, PGH synthases (hemeproteins) and lipoxygenases (non-heme iron proteins), are of eminent pharmacological importance. This thesis describes a PGH synthase-related dioxygenase designated linoleate diol synthase (LDS) and the first native occurring manganese-containing lipoxygenase. LÄS MER