Sökning: "NATURAL SCIENCES Biology Cell and molecular biology Toxicology"
Visar resultat 1 - 5 av 13 avhandlingar innehållade orden NATURAL SCIENCES Biology Cell and molecular biology Toxicology.
1. Evolutionary and Pharmacological Studies of NPY and QRFP Receptors
Sammanfattning : The neuropeptide Y (NPY) system consists of 3-4 peptides and 4-7 receptors in vertebrates. It has powerful effects on appetite regulation and is involved in many other biological processes including blood pressure regulation, bone formation and anxiety. LÄS MER
2. Sperm Membrane Channels, Receptors and Kinematics : Using boar spermatozoa for drug toxicity screening
Sammanfattning : Internal fertilization usually implies that a spermatozoon, with intact attributes for zygote formation, passes all hurdles during its transport through the female genitalia and reaches the oocyte. During this journey, millions to billions of other spermatozoa perish. LÄS MER
3. The influence of lysozyme and oligothiophenes on amyloid-β toxicity in models of Alzheimer’s disease
Sammanfattning : Alzheimer’s disease (AD) is a neurodegenerative disease and the most common cause of dementia worldwide. Apart from dominantly inherited mutations, age is the major risk factor and as life expectancy increases the prevalence for AD escalates dramatically. LÄS MER
4. Investigating Amyloid β toxicity in Drosophila melanogaster
Sammanfattning : In this thesis Drosophila melanogaster (the fruit fly) has been used as a model organism to study the aggregation and toxic properties of the human amyloid β (Aβ) peptide involved in the onset of Alzheimer's disease (AD). AD is one of many misfolding diseases where the important event of a protein to adopt its’ specific three-dimensional structure has failed, leading to aggregation and formation of characteristic amyloid fibrils. LÄS MER
5. Transcriptional profiling of human embryonic stem cells and their functional derivatives
Sammanfattning : Human embryonic stem cells (hESCs) represent populations of pluripotent, undifferentiated cells with unlimited replication capacity, and with the ability to differentiate into any functional cell type in the human body. Based on these properties, hESCs and their derivatives provide unique model systems for basic research on embryonic development. LÄS MER