Sökning: "bioactive amines"

Hittade 5 avhandlingar innehållade orden bioactive amines.

  1. 1. Extraction and chromatography of bioactive compounds in complex samples using supercritical CO2 technology

    Författare :Said Alhamimi; Centrum för analys och syntes; []
    Nyckelord :Supercritical CO2; Chromatography; Extraction; Mass transfer; Solubility;

    Sammanfattning : Bioactive compounds found in plants have been of interest to man since ancient times. These compounds have the ability to modulate the metabolic processes in our bodies, which suggests that they may promote better health. Bioactive compounds vary in their chemical structure, polarity, stability and biological activity. LÄS MER

  3. 2. Studies on Metalloenzymatic Dynamic Kinetic Resolutions and Iron-Catalyzed Reactions of Allenes

    Författare :Karl P. J. Gustafson; Jan-Erling Bäckvall; Johannes de Vries; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Racemization; Dynamic Kinetic Resolution; Enzyme Catalysis; XAS; Asymmetric Synthesis; organisk kemi; Organic Chemistry;

    Sammanfattning : The main focus of this thesis lies in the development of new transition metal-catalyzed chemoenzymatic dynamic kinetic resolutions (DKR) of both alcohols and amines. The first part of the thesis deals with the development of new heterogeneous systems for the DKR of amines. LÄS MER

  4. 3. New insights into principles of scaffolds design for bone application

    Författare :Hongji Yan; Tim Bowden; Hong Qian; Martijn van Griensven; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chondroitin sulfate; hyaluronic acid; pH; cross-linking chemistry; bone morphogenetic protein; lithium; mesenchymal stem cell; in vivo.; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

    Sammanfattning : This thesis presents deeper insights into bone applicable biomaterials’ design. Poor affinity of BMP-2 towards scaffolds required supra-physiological dose administration. Though molecules containing sulfate could sustain BMP-2 release, side effects occurred due to BMP-2 supra-dose, or these sulfate-containing biomolecules. LÄS MER

  5. 4. Oncolytic Adenovirus Therapy of Neuroendocrine Tumors

    Författare :Justyna Leja; Magnus Essand; Valeria Giandomenico; Akseli Hemminki; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; adenovirus; virotherapy; oncolytic virus; neuroendocrine tumors; chromogranin A; somatostatin receptors; microRNA; novel biomarkers; Molecular biology; Molekylärbiologi; Oncology; Onkologi; Virology; Virologi; Tumour biology; Tumörbiologi; Medical Science; Medicinsk vetenskap; Oncology; Onkologi; Medical Virology; Medicinsk virologi; Molekylär cellbiologi; Molecular Cellbiology;

    Sammanfattning : Neuroendocrine tumors (NETs), originally described as carcinoids, represent a rare and heterogeneous group of neoplasms associated with intensive secretion of hormones, bioactive peptides and amines. Most of the patients are diagnosed at a late stage of disease, often with liver metastases. LÄS MER

  7. 5. Polyamines in foods and human milk

    Författare :Mohamed Atiya Ali; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :putrescine;

    Sammanfattning : Background: Knowing the levels of polyamines, putrescine, spermidine and spermine in foods and human breast milk, and the contribution of daily food choice to polyamine intake and its effect on the levels in breast milk is of interest, due to the association of these bioactive amines to health and disease. There is a lack of relevant information on the content of polyamines in the Swedish Food Database. LÄS MER