Search for dissertations about: "sarcoplasmic-reticulum"

Showing result 1 - 5 of 18 swedish dissertations containing the word sarcoplasmic-reticulum.

  2. 1. Skeletal muscle calcium homeostasis during fatigue : modulation by kinases and mitochondria

    Author : Jan Aydin; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The use of skeletal muscles in daily activities and even during strenuous exercise resulting in fatigue requires precise regulation of force and the timing of contraction. To achieve such performance characteristics, vertebrate skeletal muscles have developed a unique control mechanism for regulating the free Ca2+ concentration in their myoplasm ([Ca2+]i). READ MORE

  4. 2. Cellular electrophysiological modulation in chronic atrial fibrillation - Studies with magnesium and GIK solution

    Author : Max Ingemansson; Lunds universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Action potential duration; Atrial cycle length; Atrial remodelling; Autonomic nervous system; AV-nodal; Conduction velocity; GIK; Magnesium; Resting membrane potential.; Refractoriness; Atrial fibrillation; Cardiovascular system; Kardiovaskulära systemet;

    Abstract : Although chronic atrial fibrillation (CAF) is the most common sustained cardiac arrhythmia in man, the mechanisms involved in its progressive course are still not fully understood. Recent studies have verified an electrical remodelling of the atrial myocardium that may be responsible for the electrophysiological disturbances known to exist in the fibrillating atria. READ MORE

  5. 3. The choreography of protein vibrations : Improved methods of observing and simulating the infrared absorption of proteins

    Author : Eeva-Liisa Karjalainen; Andreas Barth; Astrid Gräslund; Timothy A. Keiderling; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Infrared spectroscopy; FTIR; protein; atpase; amyloid; caged compound; amide I; transition dipole coupling; exciton theory; simulation; Molecular biophysics; Molekylär biofysik; Biophysics; biofysik;

    Abstract : The work presented in this thesis has striven toward improving the capability to study proteins using infrared (IR) spectroscopy. This includes development of new and improved experimental and theoretical methods to selectively observe and simulate protein vibrations. READ MORE

  6. 4. Infrared spectroscopy : a tool for protein characterization

    Author : Chenge Li; Andreas Barth; Silvia Maria Doglia; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; biokemi;

    Abstract : Infrared (IR) spectroscopy, which belongs to vibrational spectroscopy, detects the vibrations of molecules, for example, proteins. The absorption of the peptide group gives rise to 9 characteristic bands in the infrared region, named A, B, I-VII, with a decreasing energy or wavenumber (cm-1). READ MORE

  7. 5. Developmental regulation of smooth muscle contraction in the urinary bladder

    Author : Mari Ekman; Cellulär biomekanik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; newborn; Rho-kinase; cellular signaling; muscarinic receptors; calcium sensitivity; protein kinase C; non-muscle myosin; myosin light chain phosphatase;

    Abstract : Smooth muscle cells in the urinary bladder are involved in the control of urine filling and emptying. We have used mice to study the contractile regulation of urinary bladder smooth muscle during the fetal period. READ MORE