Sökning: "Capillary permeability"

Visar resultat 1 - 5 av 41 avhandlingar innehållade orden Capillary permeability.

  1. 1. Mechanisms of transendothelial and tissue transport in the peritoneum. Experimental studies on rat

    Detta är en avhandling från Bert-Inge Rosengren, Department of Nephrology, University Hospital of Lund, S-221 85 Lund

    Författare :Bert-Inge Rosengren; Lund University.; Lunds universitet.; [2003]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; nefrologi; Urologi; hyaluronan; interstitium; blood flow; rat; pore; inhibition; temperature; peritoneal dialysis; permeability; capillary; protein; passive; active; transport; transcytosis; vesicle; Urology; nephrology; small solute;

    Sammanfattning : In the present thesis, the quantitative role of active transport (transcytosis) in bulk transvascular protein movement in vivo was evaluated. Using chemical transcytosis inhibition (N-ethylmaleimide (NEM) and filipin), we were able to show that NEM actually increases endothelial permeability to macromolecules, probably as a result of unspecific toxic action on endothelial cells. LÄS MER

  2. 2. Capillary and interstitial transport of fluid and solutes across the peritoneal membrane

    Detta är en avhandling från Department of Nephrology, Lund University

    Författare :Ola Carlsson; Lund University.; Lunds universitet.; [1999]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; vascular resistance.; capillary pressure; aquaporins; Capillary permeability; vesicular transport; Urology; nephrology; Urologi; nefrologi;

    Sammanfattning : According to the three-pore model of peritoneal transport the major exchange pathway between the blood and the peritoneal cavity is represented by “small pores”, permeable to small solutes and water. Osmotically induced fluid flow, as during peritoneal dialysis (PD), is postulated to occur to a great extent through a water-only pathway, whereas proteins are predicted to reach the peritoneal cavity by unidirectional convection across “large pores”. LÄS MER

  3. 3. Solute exhange across the alveolo-capillary barrier

    Detta är en avhandling från Clinical Physiology

    Författare :Kristina Nilsson; Lund University.; Lunds universitet.; [1997]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; tomography; radiology; Clinical physics; pulmonary oedema.; nuclear medicine; smoking; permeability; rabbit; DTPA; Pulmonary surfactants; medical instrumentation; Klinisk fysiologi; radiologi; tomografi; medicinsk instrumentering;

    Sammanfattning : The aim of this thesis was to study the transfer of solutes across the alveolo-capillary barrier in experimental models of alveolar surfactant dysfunction and lung injury as well as in smokers. Experimental studies were performed in anaesthetized, and mechanically ventilated animals. LÄS MER

  4. 4. Transvascular fluid exchange with application to the brain. An experimental study in cat skeletal muscle and brain

    Detta är en avhandling från Department of Anaesthesiology and Intensive Care, Lund

    Författare :Lis Kongstad; Lund University.; Lunds universitet.; [1999]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurologi; neurophysiology; neuropsychology; Neurology; intensivvård; capillary filtration coefficient; Capillary permeability; reflection coefficient; brain edema; dural puncture; Anaesthesiology; Anestesiologi; intensive care; neuropsykologi; neurofysiologi;

    Sammanfattning : This study evaluated transcapillary fluid exchange in the cat brain and in a cat skeletal muscle enclosed in a plethysmograph. A method for determination of capillary permeability (capillary filtration coefficient and reflection coefficient) and effects of transcapillary hydrostatic pressure changes were studied We found that capillary fluid permeability in a tissue can be determined by the capillary filtration coefficient, even when arterial pressure and vascular tone are changed. LÄS MER

  5. 5. ASPECTS OF FLUID THERAPY: An experimental study of the effects of systemic inflammation, microvascular permeability, blood pressure and plasma volume

    Detta är en avhandling från Department of Clinical Sciences, Lund University

    Författare :Maris Dubniks; Lund University.; Lunds universitet.; [2008]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; sepsis; activated protein C; SIRS; albumin; blood pressure; colloids; plasma volume; hypervolaemia; hypovolaemia; microcirculation; noradrenalin; permeability; prostacyclin;

    Sammanfattning : Adequate circulating blood volume is a prerequisite for circulatory stability. Fluid therapy aims at correcting hypovolaemia, and is an important part of the haemodynamic management of perioperative and critically ill patients. LÄS MER