Sökning: "circadian rhythm"

Visar resultat 21 - 25 av 58 avhandlingar innehållade orden circadian rhythm.

1. 21. Effects of aging and inflammatory molecules on the suprachiasmatic circadian clock

   Författare :Mikael Nygård; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Circadian; suprachiasmatic; synaptic; inflammation; cytokine; SOCS; interferon; tumor necrosis factor; neuron; firing;

   Sammanfattning : The suprachiasmatic nucleus (SCN) is considered the master circadian pacemaker in the mammalian brain and is vital for generating physiological and behavioral circadian rhythms. During aging and inflammatory conditions the circadian system is frequently affected, but relatively little is known about the mechanisms underlying such effects. LÄS MER

3. 22. Non-image-forming effects of light : Implications for the design of living and working environments

   Författare :Mathias Adamsson; Thorbjörn Laike; Maria Johansson; Yvonne de Kort; Institutionen för arkitektur och byggd miljö; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; circadian rhythms; circannual; light exposure; melatonin; cortisol; sleep-wake behavior; perception; mood; spectral composition; measurement;

   Sammanfattning : Seasonal variation in mood and subjective well-being are common at geographical locations further away from the equator. The 24-h light-dark cycle is the main time cue for synchronizing the human circadian clock to the external day and night. LÄS MER

4. 23. Bile acid metabolism in humans : regulation of synthesis and circadian rhythms

   Författare :Amani Al-Khaifi; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Interfering with bile acids (BAs) signaling within the enterohepatic circulation (EHC) has recently emerged as an important way of controlling human metabolic homeostasis. This is highly relevant to a number of frequent disease entities such as dyslipidemia, fatty liver disease, insulin resistance, obesity, type 2 diabetes, gallstone disease and BA-induced diarrhea. LÄS MER

5. 24. Unstimulated human whole saliva flow rate in relation to hyposalivation and dental caries

   Författare :Håkan Flink; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Dental caries; iron deficiency; serum ferritin; unstimulated whole saliva; resting saliva; xerostomia; dry mouth; circadian rhythm.;

   Sammanfattning : Introduction: Salivary secretion is influenced by a large number of factors, including the circadian rhythm, making the detection of reduced salivary flow (hyposalivation) difficult. This is important since severely reduced salivary secretion has been associated with an increased risk for dental caries and may be a sign of a general disease, e.g. LÄS MER

7. 25. Studies on the prevalence of reduced salivary flow rate in relation to general health and dental caries, and effect of iron supplementation

   Författare :Håkan Flink; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Unstimulated whole saliva; stimulated whole saliva; resting saliva; xerostomia; dry mouth; hyposalivation; caries; remaining teeth; body mass index; iron deficiency; serum ferritin; circadian rhythm;

   Sammanfattning : Background: Reduced salivary flow is a condition that affects oral health. Its prevalence is unknown in young and middle-aged adults and there is no known treatment that permanently increases the salivary flow rate. Reduced salivary flow is related to dental caries, the most common oral disease. LÄS MER