Search for dissertations about: "adenosine 5 -triphosphate"

Showing result 16 - 20 of 77 swedish dissertations containing the words adenosine 5 -triphosphate.

  2. 16. Adenosine action on platelets : pharmacological and functional studies in human platelets in vitro

    Author : Ulla Söderbäck; Karolinska Institutet; Karolinska Institutet; []
    Keywords : adenosine; adenosine analogs; methylxanthines; cyclic AMP; ADP; dipyridamole; platelet-rich plasma; whole blood aggregatron; human. Ulla SöderbäckAdenosine action on platelets. Pharmacological and functional studies in human pl;

    Abstract : The endogenous purine adenosine (ADO) is known to inhibit platelet aggregation in vitro through increased platelet levels of cyclic AMP. This effect is ADO-A2-receptor-mediated through stimulation of membrane adenylyl cyclase. READ MORE

  4. 17. Angina pectoris : neurophysiological mechanisms with special references to adenosine and Syndrome X

    Author : Björn E Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Angina pectoris; adenosine; myocardial ischemia; nociception; cardiac nervous system; neuropathic; analgesia; [beta]-endorphin; met-enkephlin; exercise; Syndrome X; silent ischemia; biopsies; physical training;

    Abstract : Angina pectoris is the major symptom of ischemic heart disease (IHD). It is a visceral pain and the clinical presentation is complex. Its character is not well defined and this is reflected in a lack of specific pain-mediating neural structures. READ MORE

  5. 18. Adenosine receptors in the immature brain : with special reference to their role in hypoxic ischemia

    Author : Ulrika Ådén; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Newborn; neonatal; caffeine; theophylline; hypoxia-ischemia; adenosine; immature;

    Abstract : Although the newborn brain tolerates a much longer period of oxygen deprivation and ischemia than does the adult brain, perinatal hypoxic ischemia probably is an important cause of neurological dysfunction, cerebral palsy and epilepsy later in life. Hence it is important to investigate the mechanisms that modulate the extent of perinatal ischemic brain damage. READ MORE

  6. 19. Regulation by glutamate- and adenosine-receptors of dopamine and acetylcholine release from rat striatal slices

    Author : Shaoyu Jin; Karolinska Institutet; Karolinska Institutet; []
    Keywords : striatum; dopamine; acetylcholine; adenosine receptors; glutamatereceptors. ISBN 91-628-2599-2;

    Abstract : The striatum, which is critically involved in sensory motor integration, receives an excitatory glutamatergic input from the cerebral cortex and the thalamus. The effects of the glutamatergic stimulation are modulated by dopamine (DA) released from a prominent dopaminergic input, acetylcholine (ACh) released from cholinergic interneurons and by the ubiquitous neuromodulator adenosine. READ MORE

  7. 20. Structure-Function Studies of Enzymes from Ribose Metabolism

    Author : C. Evalena Andersson; Sherry Mowbray; Phil Evans; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; activation; isomerase; kinase; potassium; product inhibition; ribose; ribose 5-phosphate; x-ray crystallography; enzyme kinetics; fluorescence spectroscopy; protein structure; Molekylärbiologi; Molecular biology; Molekylärbiologi;

    Abstract : In the pentose phosphate pathway, carbohydrates such as glucose and ribose are degraded with production of reductive power and energy. Another important function is to produce essential pentoses, such as ribose 5-phosphate, which later can be used in biosynthesis of nucleic acids and cofactors. READ MORE