Search for dissertations about: "normobaric hypoxia"

Found 5 swedish dissertations containing the words normobaric hypoxia.

2. 1. Initiation of spleen contraction resulting in natural blood boosting in humans

   Author : Angelica Lodin; Erika Schagatay; Mats H. Linér; Mittuniversitetet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Acclimatization; altitude; apnea; breath-hold diving; hemoglobin; hypercapnia; hypoxia; triggers;

   Abstract : The spleen has been shown to contract in apneic situations in humans as well as in other diving mammals, expelling its stored red blood cell content into circulation. This natural blood boosting may increase the circulating hemoglobin concentration (Hb) by up to 10%, which would enhance the oxygen carrying capacity and likely increase performance. READ MORE

4. 2. Exhaled nitric oxide in extreme environments

   Author : Tryggve Hemmingsson; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Exhaled nitric oxide; hand-held instrument; electrochemical detector; microgravity; International Space Station; high altitude; hypobaric hypoxia; normobaric hypoxia; backdiffusion;

   Abstract : Exhaled nitric oxide (NO) is a useful marker for lower airway inflammation. Since NO was found to be a component of an exhaled breath in the early 1990´s, the Fractional Exhaled Nitric Oxide (FENO 50) measurement is now well accepted among clinicians as a complementary test in the management of asthma. READ MORE

5. 3. Role of arginase in vascular function

   Author : Christian Jung; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Background: Nitric oxide (NO) is central for the integrity of the cardiovascular system, the maintenance of endothelial function and the protection against ischaemic heart disease. The enzyme arginase is up-regulated during ischaemia-reperfusion and by hypoxia in cell culture and animal models which might be of pathophysiological relevance since it competes with NO synthase for their common substrate arginine. READ MORE

6. 4. ARCON in experimental and clinical radiotherapy

   Author : Ana Maria Rojas Callejas; Björn Zackrisson; René-Olivier Mirimanoff; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oncology; ARCON; tumours; normal tissues; radiosensitization; carbogen; nicotinamide; repair inhibition; therapeutic gain; rodents; humans; Onkologi; Oncology; Onkologi; onkologi; Oncology;

   Abstract : xHypoxia and repopulation of tumour clonogens are two important determinants of treatment outcome in radiotherapy. In general clinical evidence indicates that loco-regional control may be reduced with long overall treatment times and for tumours with low pre-treatment levels of oxygen. READ MORE

7. 5. Vascular effects of hyperoxaemia and its mechanisms in man

   Author : Andreas Rousseau; Göran Hedenstierna; Linköpings universitet; []
   Keywords : MEDICINE; MEDICIN;

   Abstract : Most cells in the human body cannot survive without oxygen. The regulation of oxygen delivery to meet demands of tissues remains contentious. READ MORE