Sökning: "regulation of contraction"

Visar resultat 1 - 5 av 74 avhandlingar innehållade orden regulation of contraction.

1. 1. Regulation of striated muscle contraction

   Författare :Ying Dou; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Background and Aims: Muscle contraction involves cross-bridge interaction between actin and myosin filaments, which is regulated by variations of intracellular [Ca2+] and influenced by several external control systems. To characterize the mechanism of contraction, we have studied the effects of pharmacological compounds influencing the actin-myosin interaction and/or Ca2+ activation systems. LÄS MER

3. 2. Myonuclear Organization and Regulation of Muscle Contraction in Single Muscle Fibres : Effects of Ageing, Gender, Species, Endocrine Factors and Muscle Size

   Författare :Rizwan Qaisar; Lars Larsson; Jo Bruusgaard; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; single muscle cells; muscle nuclei; specific force; species; hypertrophy; mammals; ageing; gender; Physiology; Fysiologi;

   Sammanfattning : The skeletal muscle fibre is a syncitium where each myonucleus regulates the gene products in a finite volume of cytoplasm i.e., the myonuclear domain (MND). LÄS MER

4. 3. Effects of Ageing and Physical Activity on Regulation of Muscle Contraction

   Författare :Alexander Cristea; Lars Larsson; Anna-Stina Höglund; Ingrid Lundberg; Uppsala universitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; ageing; sarcopenia; sprint training; progressive resistance training; in vivo function; isokinetic dynamometer; in vitro function; single permeabilised fibre; myonuclear domain; confocal microscopy; Medicine; Medicin;

   Sammanfattning : The aims of this study were to investigate the mechanisms underlying (1) the ageing-related motor handicap at the whole muscle, cellular, contractile protein and myonuclear levels; and (2) ageing-related differences in muscle adaptability.In vivo muscles function was studied in the knee extensors. LÄS MER

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

   Författare :Mari Ekman; Cellulär biomekanik; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

7. 5. Regulation of experimentally induced airway obstruction

   Författare :Eva G. Lindström; Jan Lötvall; Linköpings universitet; []
   Nyckelord :airway obstruction; antigen; capsaicin; epithelium; inflammatory mediators; sensory neurons; tube preparation; tachykinins; formoterol; histamine; presynaptic inhibition; in vitro; guinea pig; MEDICINE; MEDICIN;

   Sammanfattning : Asthma is one of the commonest diseases in industrialized countries. The cause and mechanisms of !he disorder are still not fully unden;tood, al!hough it is known that inflammation in !he airways plays an important role. Inflammatory mediators, e.g. LÄS MER