Sökning: "aldehydes"

Visar resultat 11 - 15 av 150 avhandlingar innehållade ordet aldehydes.

  1. 11. Studies of α-synuclein Oligomers-with Relevance to Lewy Body Disorders

    Författare :Therese Fagerqvist; Martin Ingelsson; Joakim Bergström; Lars Lannfelt; Michael G Schlossmacher; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Alpha-synuclein; Parkinson´s disease; Lewy body dementia; Oligomer; Monoclonal antibody; Immunotherapy; Reactive aldehydes; Medical Science; Medicinsk vetenskap;

    Sammanfattning : The protein alpha-synuclein (α-synuclein) accumulates in the brain in disorders such as Parkinson’s disease (PD) and dementia with Lewy bodies (DLB). It is believed that the monomeric form of α-synuclein can adopt a partially folded structure and start to aggregate and form intermediately sized oligomers or protofibrils. LÄS MER

  3. 12. Odour-mediated nectar foraging in the silver Y moth, Autographa gamma

    Författare :Dainius Plepys; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; predation risk; Noctuidae; Lepidoptera; flight tunnel; GC-EAD; single sensillum; sprayer; ultrasound; floral volatiles; attraction; foraging; mate-finding; lilac aldehydes; olfactory receptor neurones; Ecology; Ekologi; Chemistry; Kemi;

    Sammanfattning : It is well established that floral odours play a significant role in the nectar foraging behaviour in Lepidoptera and other insect orders. Floral odour may elicit searching, alighting and feeding behaviours alone or in concert with visual stimuli. LÄS MER

  4. 13. Grazer-induced responses in marine phytoplankton

    Författare :Johanna Bergkvist; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; phytoplankton; defence; dinoflagellate; diatoms; paralytic shellfish toxins; polyunsaturated aldehydes; chain formation;

    Sammanfattning : Phytoplankton are the most important primary producers in the world’s oceans, yet little is known of how they avoid the constant threats from the pelagic grazers. From land it is well known that plants defend themselves by having thorns or producing compounds unpalatable to grazers. LÄS MER

  5. 14. Experimental studies on acute health effects of acrolein and other aldehydes

    Författare :Aishwarya Mishra Dwivedi; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Aldehydes are reactive and ubiquitous in indoor as well as outdoors and can give rise to significant health problems in humans, e.g. irritation of the eyes and toxic effects on the upper respiratory tract. This thesis focuses on the irritating and inflammatory properties of three commonly occurring aldehydes; acrolein, crotonaldehyde and hexanal. LÄS MER

  7. 15. In vivo dosimetry of aldehydes and studies on the origin of malonaldehyde

    Författare :Antti Kautiainen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Aldehydes are electrophilic reagents that bind to nucleophilic sites in macromolecules andmany of them have been shown to possess cytotoxic and genotoxic properties.The aim of this study was to develop an analytical method for the measurement of reactionproducts (adducts) of aldehydes with hemoglobin (Hb) and to apply this method for in vivodosimetry of endogenously formed aldehydes, particularly malonaldehyde (MA). LÄS MER