Sökning: "vitamin B6"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden vitamin B6.

  1. 1. Vitamin B6 as a potential antioxidant : a study emanating from UV-B-stressed plants

    Författare :Mikael Ristilä; Åke Strid; Leif Eriksson; Éva Hideg; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis; UV-B irradiation; pyridoxine; vitamin B6; ROS; Chemistry; Kemi; Chemistry; Kemi;

    Sammanfattning : Increased influx of solar UV-B radiation (280-320 nm), due to a decreasing stratospheric ozone layer, impacts severely on plants. Some of the UV-B effects on plants are related to stress induced by produced reactive oxygen species (ROS). Pyridoxine (vitamin B6) has been reported to be a potential quencher of ROS. LÄS MER

  3. 2. Vitamin B12 and folate depletion in the elderly. Diagnosis, clinical correlates and causes

    Författare :Catharina Lewerin; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; aged; methylmalonic acid; homocysteine; vitamin B12; folic acid; renal function; cognition; movement; atrophic gastritis;

    Sammanfattning : Subclinical vitamin B12 and folate deficiency is common in the elderly. The clinical significance remains unresolved. There is not a universally accepted set of laboratory criteria for diagnosis, however subclinical deficiency is important to diagnose since it is easy to treat. LÄS MER

  4. 3. Enzymatic mechanisms in biotin synthesis : vitamin B6 catalysis and phosphoryl transfer

    Författare :Jenny Sandmark; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :X-ray crystallography; biotin biosynthesis; pyridoxal-5 -phosphate; aminotransferase; aluminium fluoride; S-adenosyl-L-methionine; 7; 8-diaminopelargonic acid synthase; dethiobiotin synthetase; biotin; phosphoryl transfer; amiclenomycin.;

    Sammanfattning : With the large number of pathogenic bacteria that have developed antibiotic resistance it is increasingly important to find new targets for antibiotics. Our interest in the biotin biosynthesis pathway originates from this drug design perspective. All organisms require biotin, but it is only synthesised in bacteria, in plants and in some fungi. LÄS MER

  5. 4. Voltammetric assay of some watersoluble vitamins and a discussion of physico-chemical methods for the quantitative determination of vitamin B6

    Författare :Petter Söderhjelm; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  7. 5. On HIV in the elderly and vitamin B metabolism in HIV infection

    Författare :Erika Tyrberg; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HIV-1; elderly; drug levels; potential drug-drug interactions; inflammation; immune activation; antiretroviral therapy; homocysteine; neurofilament light protein;

    Sammanfattning : The evolution of the human deficiency virus (HIV) field is unparalleled in the history of infectious diseases. From the first cases in the beginning of the 1980s, when an HIV diagnosis was a death sentence, through the discovery of the first effective medicines, up till today when people living with HIV (PLHIV) with access to antiretroviral therapy (ART) can lead a near normal life. LÄS MER