Search for dissertations about: "polymorphism"

Showing result 21 - 25 of 689 swedish dissertations containing the word polymorphism.

2. 21. Importance of serotonin-related candidate genes for human behaviour

   Author : Jonas Melke; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; serotonin; genetics; polymorphism; association study; personality; panic disorder; premenstrual dysphoria; serotonin receptor; serotonin transporter;

   Abstract : Family and twin studies have been consistent in demonstrating that genetic factors are involved in the etiology of most major psychiatric disorders, as well as in various normal personality traits. Mostly due to the efficacy of serotonin-acting drugs, such as selective serotonin reuptake inhibitors (SSRI) and tricyclic antidepressants (TCA), the neurotransmitter serotonin has been implicated in a variety of common psychiatric disorders, including depression, a spectrum of anxiety disorders, and premenstrual dysphoria; moreover, some studies have suggested that also personality is influenced by serotonin. READ MORE

4. 22. Coffee and gene interaction. The effect on methionine and lipid metabolism

   Author : Elisabeth Strandhagen; Göteborgs universitet; []
   Keywords : coffee; homocysteine; cholesterol; folate; pyridoxine; MTHFR; APOE; gene; polymorphism; interaction;

   Abstract : Background: Different dietary factors influence the risk of coronary heart disease (CHD), most likely in an interaction with genetic polymorphisms. The knowledge about such interactions is insufficient. Some observational studies have shown an association between coffee and CHD, others have not. Coffee consumption affects some CHD risk factors, e. READ MORE

5. 23. Genetic aspects of stroke : association and linkage studies in a northern Swedish population

   Author : Per-Gunnar Wiklund; Birgitta Stegmayr; Kjell Asplund; Dan Holmberg; Alun Evans; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Internal medicine; stroke; genetics; polymorphism; association; linkage; risk factors; plasminogen activator inhibitor-1; tissue plasminogen activator; angiotensin converting enzyme; angiotensin II receptor type 1; phosphodiesterase 4D; Invärtesmedicin; Internal medicine; Invärtesmedicin; medicin; Medicine;

   Abstract : Stroke is a common, multifactorial cardiovascular disease. A stroke event is the result of traditional risk factors (i.e. hypertension, diabetes, smoking), environmental exposures and genetic factors in a complex interplay. READ MORE

6. 24. Influence of serotonin-related genes on behavior and body weight

   Author : Jessica Bah Rösman; Göteborgs universitet; []
   Keywords : Serotonin; Genes; anorexia nervosa; premenstrual dysforia; body weight; suicide; polymorphism; HTR2C; SLC6A4; GATA2; HTR3B;

   Abstract : Rationale: The neurotransmitter serotonin has been implicated in the regulation of normal behaviors, including food intake, and attributed importance for a variety of common psychiatric conditions, including major depression, suicidal behavior, eating disorders and premenstrual dysphoria. The purpose of these studies was to explore the possible influence of genetic variation in serotonin-related genes on a) body weight, b) binding capacity of the serotonin transporter in the brain of suicide attempters and c) a disorder for which numerous findings suggest serotonin to play a key role, i. READ MORE

7. 25. Avian MHC: variation and selection in the wild

   Author : Helena Westerdahl; MEMEG; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; polymorphism; balancing selection; cDNA; avian malaria; great reed warbler; Djurekologi; bird; Animal ecology; immune defence; MHC class II; Major Histocompatibility Complex; MHC class I;

   Abstract : In vertebrates the Major Histocompatibility Complex (MHC) plays a central role in the specific immune defence against various pathogens. Compared with other coding genes the MHC genes exhibit an extremely high level of polymorphism that is maintained by balancing selection. READ MORE