Sökning: "Opioid peptides"

Visar resultat 1 - 5 av 36 avhandlingar innehållade orden Opioid peptides.

1. 1. Levodopa- and Neuroleptic-Induced Dyskinesias : Studies on Pharmacological Modification and Processing of Opioid Neuropeptides

   Författare :Rebecka Klintenberg; Alan Crossman; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biological research on drug dependence; Opioid peptides; dyskinesia; Parkinson s disease; mass spectrometry; metabolism; Biologisk beroendeforskning; Biological research on drug dependence; Biologisk beroendeforskning; biologisk beroendeforskning; Biological Research on Drug Dependence;

   Sammanfattning : Dyskinesias or abnormal involuntary movements are a debilitating complication of long-term levodopa treatment of Parkinson’s disease (PD) that is widely experienced and may compromise the efficacy of the drug therapy. Tardive dyskinesia is another important adverse effect seen with antipsychotic drug treatment. LÄS MER

3. 2. The opioid peptide dynorphin A : Biophysical studies of peptide–receptor and peptide–membrane interactions

   Författare :Johannes Björnerås; Lena Mäler; Astrid Gräslund; Scott Prosser; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dynorphin A; opioid receptor; neuropeptide; bicelles; NMR; diffusion; decomposition; Biophysics; biofysik;

   Sammanfattning : The work presented in this thesis concerns the opioid peptide dynorphin A (DynA). DynA functions primarily as a neurotransmitter and belongs to the family of typical opioid peptides. These peptides are a part of the opioid system, together with the opioid receptors, a family of GPCR membrane proteins. LÄS MER

4. 3. Evolution of the Neuropeptide Y and Opioid Systems and their Genomic Regions

   Författare :Görel Sundström; Dan Larhammar; Manfred Schartl; Uppsala universitet; []
   Nyckelord :neuropeptide Y; opioid; evolution; genome duplication; gene duplication; Hox; SCN; IGFBP; MEDICINE; MEDICIN;

   Sammanfattning : Two whole genome duplications (2R) occurred early in vertebrate evolution. By using combined information from phylogenetic analyses and chromosomal location of genes, this thesis delineates the evolutionary history of two receptor-ligand systems that expanded by these large scale events. LÄS MER

5. 4. Transport and metabolism of opioid tetrapeptide agonists with a focus on oral and respiratory delivery

   Författare :Eva Krondahl; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacy; opioid peptides; permeability; metabolism; oral delivery; pulmonary delivery; FARMACI; PHARMACY; FARMACI; galenisk farmaci; Pharmaceutics;

   Sammanfattning : The clinical development of peptide drugs for oral delivery has often been hindered because of poor transport across the intestinal membranes and degradation in the gastrointestinal tract and liver. Alternative delivery routes through more permeable membranes preferably with less pronounced proteolytic activity, such as the nasal and pulmonary routes, have therefore been considered. LÄS MER

7. 5. Opioid and non-opioid activities of the dynorphins

   Författare :Zoya Marinova; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Endogenous opioid peptides a-neoendorphin, dynorphin A (Dyn A), dynorphin B (Dyn B) and big dynorphin (Big Dyn) consisting of Dyn A and Dyn B, collectively known as dynorphins are derived from the precursor protein prodynorphin (PDYN). Dynorphins regulate pain processing and memory acquisition and modulate reward induced by intake of addictive substances. LÄS MER