Sökning: "Gene down-regulation"
Visar resultat 1 - 5 av 156 avhandlingar innehållade orden Gene down-regulation.
1. Chemically Modified Oligonucleotides: Synthesis, Physicochemical and Biochemical Properties of their Duplexes with DNA and RNA
Sammanfattning : This thesis is based on 9 papers dealing with the synthesis, physicochemical and biochemical properties of two types of chemically modified oligonucleotides which have the potential to down-regulate gene expression: (i) The first set is comprised of antisense oligonucleotides (AONs) conjugated with different chromophores of varying size, charge and π-electron density. Conjugation of the chromophores at the 3'- or 5'-end enhanced the target RNA binding affinity and RNase H recruitment capabilities compared to the native counterpart without changing the global helical conformation of their AON/RNA hybrid duplexes. LÄS MER
2. Gene expression in carcinogenesis
Sammanfattning : It is important to understand the processes of carcinogenesis and to find out which genes are involved . One way to study the process on a molecular basis is to identify differences in gene expression. LÄS MER
3. Genetic diversity of the heat labile (LT) and heat stable (ST) toxins of human enterotoxigenic Escherichia coli (ETEC): New insights into polymorphism, regulation, and gene transcription
Sammanfattning : Infection with enterotoxigenic Escherichia coli (ETEC) is a leading cause of diarrhea in children in developing countries and travelers to endemic regions. ETEC is a diverse pathogen, with a wide range of virulence factors including enterotoxins and more than 25 identified colonization factors (CFs). LÄS MER
4. Gene Therapy with Interferon Alpha and the Angiogenic Inhibitor, Vasostatin, in Neuroendocrine Tumors of the Digestive System
Sammanfattning : IFN-α has been applied in medical treatment of various neuroendocrine (NE) tumors, either alone or combination with somatostatin analogues. They can improve clinical symptoms in 50-70% of patients but a significant tumor reduction is only observed in 5-15% patients. Vasostatin (vaso) is believed to be an angiogenic inhibitor. LÄS MER
5. Thioredoxins and gene regulation in the Drosophila germline
Sammanfattning : Spermatogenesen är i många organismer en av de mest dramatiska förvandlingar som en cell kan genomgå – en vanlig, rund, diploid cell omvandlas till en nålformad, haploid cell med ett tätt packat cellmaskineri. I bananfluga, Drosophila melanogaster, innebär denna process flera karaktäristiska stadier. LÄS MER