Sökning: "beta-adrenoceptors"

Hittade 4 avhandlingar innehållade ordet beta-adrenoceptors.

  1. 1. Polycystic ovary syndrome : a study of adipocyte lipolysis in relation to endocrine and metabolic status

    Författare :Ingvar Ek; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Adipocyte; beta-adrenoceptors; FFA; hyperandrogenism; HSL; insulin resistance; lipolysis; PCOS; PKA;

    Sammanfattning : The aim of the present thesis was to obtain insight into possible regulatory effects of androgens on the regulation of lipolysis in subcutaneous as well as visceral adipose tissue in women with the polycystic ovary syndrome (PCOS). In non-obese women with PCOS, adrenergic lipolysis was investigated in both subcutaneous abdominal and visceral adipose tissue and several, novel disturbances were found. LÄS MER

  3. 2. Studies on production and function of pulmonary nitric oxide

    Författare :Christofer Adding; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :adrenaline; adrenoceptors; beta-adrenoceptors; calcium; carbon dioxide; catecholamines; chemiluminescence; exhaled; gadolinium chloride; high frequency oscillatory ventilation; nitric oxide; pulmonary; pulmonary circulation; stretch; sympathoadrenal; veratrine;

    Sammanfattning : Nitric oxide is involved in pulmonary vascular and bronchial regulation and appears to be of paramount importance in the adaptation of the pulmonary circulation at birth. Nitric oxide is present in exhaled gas. LÄS MER

  4. 3. Calcium Responses in the Renal Afferent Arteriole to Angiotensin II and Norepinephrine Stimulation

    Författare :Mark Kornfeld; Klinisk neurofysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; norepinephrine; angiotensin II; smooth muscle cells; afferent arteriole; calcium; Kidney; renal hemodynamics; Physiology; Fysiologi;

    Sammanfattning : Studies were performed to investigate the influence of the vasoconstrictors angiotensin II (AII) and norepinephrine (NE) on calcium metabolism in smooth muscle cells of afferent arterioles. Fura-2 and image analysis techniques were used to evaluate calcium responses in the proximal and distal parts of afferent arterioles with attached glomeruli. LÄS MER

  5. 4. Cardiac electrophysiologic effects of mental stress

    Författare :Per Insulander; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background: Mental stress may trigger serious arrhythmias. Mental stress tests cause significant increases in heart rate, blood pressure and cardiac output. When beta-adrenergic inhibition is considered for secondary antiarrhythmic prophylaxis beta1 selective agents are often preferred because of less adverse reactions. LÄS MER