Sökning: "ion regulation"

Visar resultat 21 - 25 av 131 avhandlingar innehållade orden ion regulation.

  1. 21. Calcium signaling in astroglial cells. Noradrenergic effects and regulation

    Författare :Håkan Muyderman; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Astrocytes; Neurons; Noradrenaline; Glutamate; Fluorometry; Fura-2; Fluo-3; PBFI; Digital imaging; Voltage-patch-clamp; Whole-cell currents; Calcium; Potassium; Intercellular communication; Glutamate release; Neuron-glial interactions.;

    Sammanfattning : Astroglial cells are the most common cell type in the central nervous system and express a wide array of ion channels and neurotransmitter receptors. The cells organize into multicellular networks and exhibit a calcium-based excitability in which receptor-mediated calcium elevations propagate as intercellular waves over considerable distances. LÄS MER

  3. 22. Nitrite ion : its role in vasoregulation and host defenses

    Författare :Håkan Björne; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Nitrate; nitrite; nitric oxide; gastro protection; ventilator-associated pneumonia; bactericidal; vasodilation;

    Sammanfattning : Nitrite and nitrate are distributed throughout the human body, with especially high levels being present in saliva. Until recently, these anions were considered merely to be inert end-products of the oxidation of endogenous nitric oxide (NO). LÄS MER

  4. 23. Electrostatic Interactions In and Between Biomolecules

    Författare :Mikael Lund; Beräkningskemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical chemistry; quantum chemistry; Fysikalisk kemi; Physical chemistry; Protein-protein interactions; Molecular modelling; Proton binding; Protein electrostatics; Monte Carlo simulation; Charge regulation; Teoretisk kemi; kvantkemi;

    Sammanfattning : Electrostatic interactions in bio-molecular systems are important not only in the living cell but also in more technical applications. Using molecular simulation as well as approximate theories the properties of a number of aqueous protein solutions have been studied. LÄS MER

  5. 24. Oxygen-dependent regulation of key components in microbial chlorate respiration

    Författare :Miriam Hellberg Lindqvist; Thomas Nilsson; Stefan Nordlund; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Anaerobic respiration; Gene expression; Chlorate; Chlorate reductase; Chlorite dismutase; Kemi; Chemistry;

    Sammanfattning : Contamination of perchlorate and chlorate in nature is primarily the result of various industrial processes. The microbial respiration of these oxyanions of chlorine plays a major role in reducing the society’s impact on the environment. LÄS MER

  7. 25. Expression and hormonal regulation of aquaporins in the human uterus

    Författare :Anna Hildenbrand Wachtmeister; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : BACKGROUND: Aquaporins (AQPs) are water channels present in the cell wall, allowing water – and occasionally other molecules – to pass the cell membrane. So far 13 AQPs have been found in humans. Their function is to maintain the cell internal milieu by regulating water and ion equilibrium. LÄS MER