Sökning: "Depolarization changes"

Visar resultat 11 - 15 av 34 avhandlingar innehållade orden Depolarization changes.

  1. 11. Cardiac memory studies in two human models

    Författare :Liliane Wecke; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Cardiac memory; repolarization; pacing; WPW ablation;

    Sammanfattning : Background: Cardiac memory is a form of electrical remodeling of the ventricles, where the T vector follows ("remembers') a previously altered QRS vector. On the electrocardiogram (ECG), it presents as T-wave inversions. LÄS MER

  3. 12. Energy Transfer Patterns in Photosynthetic Antenna System of Purple Bacteria

    Författare :Susan Hess; Kemisk fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optics; Electromagnetism; mykologi; virologi; bakteriologi; photosynthesis; Mikrobiologi; Picosecond and femtosecond spectroscopy; energy transfer; purple bacteria.; Microbiology; bacteriology; mycology; virology; acoustics; Elektromagnetism; optik; akustik; Fysicumarkivet A:1997:Hess;

    Sammanfattning : Steady state and time-resolved absorption and fluorescence spectroscopy have been used to investigated the energy transfer in photosynthetic purple bacteria. Picosecond light pulses were used in measurements of Rb. LÄS MER

  4. 13. Apoptotic signaling in lung carcinoma cells : with focus on mechanisms of radioresistance

    Författare :Jessica Ekedahl; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : In this thesis, IR-induced apoptotic signaling was studied in a panel of lung carcinoma cell lines. The goal was not only to achieve a better understanding of the process, but also to identify possible targets for pharmacological modulation to enhance the efficiency of radiotherapy. LÄS MER

  5. 14. Role of HAMLET and metabolism in treatment and pathogenesis of pneumococci

    Författare :Goutham Vansarla; Malmö Experimentell infektionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Streptococcus pneumoniae; Antibiotic resistance; Alpha-lactalbumin; HAMLET; Biofilms; Bacterial metabolism; Immunomodulatory effects.;

    Sammanfattning : Antimicrobial resistance (AMR) is one of the principle public health problems in the 21st century, threatening the available treatment strategies for bacterial infections. Here, we present a human protein-lipid complex, HAMLET (human alpha-lactalbumin made lethal to tumor cells) purified from human milk as a potential therapeutic agent which has both tumoricidal and bactericidal activity. LÄS MER

  7. 15. 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