Sökning: "pulsatile"

Visar resultat 21 - 25 av 67 avhandlingar innehållade ordet pulsatile.

  1. 21. Development and evaluation of non-invasive ultrasonic methods for arterial characterization

    Författare :Anders Eriksson; Avdelningen för Biomedicinsk teknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Instrumentation technology; TDI; Tissue Doppler imaging; Arterial characterization; Non-invasive; Flow generation; PWV; Pulse wave velocity; Mät- och instrumenteringsteknik; Ultrasound; Vascular impedance;

    Sammanfattning : As cardiovascular diseases have been the most common cause of mortality in the western world for decades, the demand for appropriate diagnostic methods is obvious. To facilitate the examination non-invasive methods are preferable since they do not require sensors within the circulation system. LÄS MER

  3. 22. Hormones and fluid balance during pregnancy, labor and post partum

    Författare :Anitha Risberg; Mats Sjöquist; Kerstin Olsson; Sven Lyrenäs; Karolina Kublickiene; Uppsala universitet; []
    Nyckelord :cortisol; estradiol; glucose; labour; osmolality; oxytocin; parturition; pregnancy; pregnancy-induced hypertension; progesterone; vasopressin; MEDICINE; MEDICIN; Medicine; medicin;

    Sammanfattning : The aim of this thesis was to determine any association between plasma oxytocin and vasopressin concentrations and renal water and sodium excretion during normal pregnancy. In addition to investigate changes in concentrations of estradiol, progesterone, oxytocin, cortisol, and glucose in the blood before and in the nearest hours after delivery and if treatment with oxytocin affected these concentrations and the fluid balance during the different stages of labour. LÄS MER

  4. 23. ATP Dynamics in Pancreatic α- and β-cells

    Författare :Jia Li; Anders Tengholm; Erik Gylfe; Hindrik Mulder; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ATP; Ca2 ; β-cell; α-cell; SERCA; SOCE; muscarinic receptor; insulin secretion; glucagon secretion; Medical Cell Biology; Medicinsk cellbiologi;

    Sammanfattning : Glucose metabolism in pancreatic α- and β-cells is believed to regulate secretion of glucagon and insulin, respectively. In β-cells, ATP links glucose metabolism to electrical activity and insulin secretion. LÄS MER

  5. 24. Regulation of aortic wall mechanics and stress : An experimental study in man

    Författare :Håkan Åstrand; Toste Länne; Matts Karlsson; Martin Björck; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aorta; wall stress; remodeling; IMT; gender; diabetes mellitus; aging; collagen; elastin; Vascular surgery; Kärlkirurgi;

    Sammanfattning : The abdominal aorta (AA) in man is a vulnerable artery prone to atherosclerosis as well as aneurysmatic dilation. The underlying aortic composition, mechanical properties as well as the mechanisms responsible for age-related changes and vascular disease are however largely unknown. LÄS MER

  7. 25. Cyclic AMP Oscillations in Insulin-Secreting Cells

    Författare :Jenny Sågetorp; Anders Tengholm; Erik Gylfe; Lena Stenson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medical cell biology; Medicinsk cellbiologi;

    Sammanfattning : Cyclic AMP is an intracellular messenger that regulates numerous processes in various types of cells. In pancreatic β-cells, cAMP potentiates the secretion of insulin by promoting Ca2+ signals and by amplifying Ca2+-triggered exocytosis. Whereas Ca2+ signals have been extensively characterized, little is known about the kinetics of cAMP signals. LÄS MER